view Farahat’s Arabic Book Review in Mekka Newspaper By cynthiafarahat.com Published On :: Sun, 30 Oct 2022 15:23:58 +0000 Mekka Newspaper, Mecca, Saudi Arabia: Oct. 28, 2022 It was my distinct honor to Arabic receive a wonderful review by Mecca Newspaper, one of the oldest newspapers in the Middle East. I am deeply grateful and humbled to be part of the historic reformation and renaissance taking place in the Middle East. When Mecca newspaper […] Full Article Featured Articles
view The Secret Apparatus Book Review: Conspiracy? Yes, A Century of Muslim Brotherhood Jihad By cynthiafarahat.com Published On :: Sat, 10 Dec 2022 15:53:06 +0000 By Walter Donway, Savvy Street originally published on Dec. 4, 2022 Book Review: The Secret Apparatus: The Muslim Brotherhood’s Industry of Death by Cynthia Farahat, Post Hill Press, Bombardier Books (2022) A grim irony of twentieth-century history (but, of course, also predating it) is that the most horrendous threats to humanity have simply been too monstrously evil […] Full Article 9/11 Academia Afghanistan Al-Azhar University Al-Qaeda CAIR Infiltration Muslim Brotherhood
view Farahat’s Interview with FDD By cynthiafarahat.com Published On :: Wed, 11 Jan 2023 12:42:02 +0000 FDD’s Foreign Podicy Podcast with Cynthia Farahat Dec. 27, 2022 The Muslim Brotherhood has been around for close to a century but most people – certainly most Americans and Europeans – know very little about it. Is it reformist and non-violent as its spokesmen and defenders claim? Or is it – as Cynthia Farahat argues in a […] Full Article Featured Articles
view Commentary: Harris Pushed To Explain Policy Shifts in First Interview as Dem Nominee By deneenborelli.com Published On :: Fri, 30 Aug 2024 15:47:39 +0000 Commentary by Philip Wegmann originally published by RealClearPolitics and RealClearWire Kamala Harris shrugged. Asked about former President Donald Trump’s questioning of her racial identity, the vice president replied, “Same old, tired playbook. Next question, please.” And then she laughed. “That’s it?” protested CNN’s Dana Bash, probing for more during the first sit-down interview with the … Full Article Commentaries Government Policies News
view Interview: Steve Brooking By www.chathamhouse.org Published On :: Tue, 27 Sep 2022 18:35:28 +0000 Interview: Steve Brooking The World Today mhiggins.drupal 27 September 2022 The Afghanistan expert tells Mike Higgins the Taliban are reneging on their promises and that the region’s powers must intercede. Steve Brooking is the former chargé d’affaires at the British Embassy in Kabul and was special adviser to the UN Assistance Mission in Afghanistan from 2015 to 2021. How has day-to-day life become worse for Afghans since the United States and its allies withdrew abruptly from Afghanistan in the late summer of 2021? That depends on where those Afghans are living and what they were doing. Life for lots of ordinary rural Afghans hasn’t changed much, it is still subsistence farming. Until last year, the success stories of girls in education, new hospitals, schools and clinics were concentrated in the towns and cities. When the Americans left, there was a mass exodus of the educated middle class In fact, there has been a shortage of teachers and medics for years. Many Afghans left those jobs to work for the coalition forces or the international development presence in the country. When the Americans left last year, along with them was a mass exodus of the educated middle class from the country, which affected the cities and towns. The emerging middle class was also hit by the disappearance of the jobs that went with those foreign troops. Spending power has collapsed. Many Afghans in cities support a dozen or more extended family members, but now they don’t have the money. Afghans are relying on external humanitarian aid but the agencies are only getting about half what they are asking for because there are competing humanitarian crises – in the Horn of Africa, Syria, Ukraine. In September, Washington announced it would transfer $3.5 billion into a Swiss-based trust fund to try to stabilize Afghanistan. How far will that money go and are the US wise to avoid Afghanistan’s central bank? It is enough to make a significant humanitarian difference. Bypassing the Afghan central bank indicates that the US government is keen the money does not fall into the hands of the Taliban, or international terrorists. The American assassination of the Al-Qaeda leader, Ayman al-Zawahiri, in Kabul in July showed the Taliban have not kept to their promise to prevent the country being used as a terrorist base. Also, it is clear the US doesn’t want to be seen to be supporting the Taliban government or to start recognizing it or getting anywhere near recognizing it. It remains concerned about all sorts of violations of basic rights – the most egregious being girls not allowed in secondary schools and women not being allowed to work except in certain sectors. The Americans and other donor countries were paying teachers’ salaries through the UN but that stopped when the new Afghan school year began in March and girls still weren’t allowed back to school. The Taliban need to show a responsible level of governance and ability before people will trust them with their money. But it’s difficult to see the Taliban making the necessary concessions to move beyond humanitarian aid to receive development funding. As the attention of the US is focused on Ukraine and further eastwards towards China, what will be the cost if the West doesn’t engage with Afghanistan seriously? You could argue the costs will be minimal. The Americans tried a lot over 20 years, they failed and then left overnight. It caused complete shock around the region. To be fair, though, the Americans warned the region’s powers that they were leaving and that this would be a problem in the region unless they got help from those same powers. The Taliban complain about sanctions, travel restrictions and the freezing of assets. But they have made no attempt to honour the Doha Agreement Europe and the UK are more likely to experience the fallout from a deteriorating Afghanistan. The refugee flows will continue. To stem that, they want to persuade the Taliban to make a more inclusive government. There are few levers to pull with the Taliban, unfortunately. They complain about sanctions, travel restrictions for various leaders, the freezing of assets. But they haven’t made any attempt to speak to the political opposition or honour the terms of the Doha Agreement, let alone engage in other issues. I think the onus to act falls on the regional powers because they will feel the first effects of instability in Afghanistan. China, Russia, India and other regional powers are members of the Shanghai Cooperation Organization (SCO), which had its summit in Samarkand last month. Some have been arguing that the SCO should take a more active role in Afghanistan, which has SCO observer status. Iran is worried about the persecution of Shia minorities in Afghanistan, but they are trying to have constructive relations with the Taliban because they need water from Afghanistan to feed the southeast of Iran, which is very dry. Pakistan has not been able to control the Taliban, but has succeeded in establishing a regime in Kabul that is hostile to India. China would like to see stability in Afghanistan to access its natural resources, but otherwise it largely follows Pakistan’s lead. Russia is preoccupied with Ukraine, but is worried about the spread of narcotics and Islamic extremism up through central Asian states. None of those regional powers, it should be said, is willing to recognize a Taliban government. How secure is the Taliban government? Cross-border trade continues, with revenues from mining, timber, coal and natural resources. The Taliban are still involved in heroin production, which they tax heavily despite having said they would suppress it. A senior Afghan woman told me recently: ‘We feel more secure, but less certain about our future than ever before.’ They don’t want to upset the poppy farmers who helped return them to power. There is a level of security that has bought the Taliban some time. Previously, in the south there was a lot of fighting and there were daily car bombs and attacks in some cities. Now, on the whole, mothers know they can send their kids to the water pump. A friend, a senior Afghan female in the country, told me recently: ‘We feel more secure, but less certain about our future than ever before.’ They can see that the economy is going downhill. One scenario is a disintegration of the country along regional lines, in which, say, the people of Badakhshan decide they will no longer let the central government take all the revenue from their lapis lazuli and ruby mines. Local warlords may re-emerge whom the Taliban would find it more difficult to deal with. As for the terrorist threat in Afghanistan, the Taliban never broke their ties to Al-Qaeda, and at one point the Americans were saying that there were more than two dozen terrorist groups in Afghanistan. I’m sure the Taliban will be able to rein in most of these, the exception being Islamic State – that is a battle of extreme ideologies. Another problem is a lot of these international terrorists have married Afghans and are now well enmeshed into local society. You paint a bleak picture of Afghanistan’s future. What, if anything, gives you hope for the country? Ordinary Afghans are resilient and entrepreneurial. They also have a strong sense of being Afghan and that their country is one of the longest-existing countries in that part of the world. But the Taliban need to make people feel they are included in that national identity. Sadly, I think it will take war, famine, plague and disaster in order for the Taliban to unbend sufficiently to realize that they need better ethnic and gender representation in government, as well as economic expertise. I hope the Afghan diaspora will be asked to come together to forge a better future for the country. Full Article
view Book preview: Guide to Chinese Climate Policy 2022 By www.chathamhouse.org Published On :: Wed, 28 Sep 2022 15:52:14 +0000 Book preview: Guide to Chinese Climate Policy 2022 20 October 2022 — 10:00AM TO 11:15AM Anonymous (not verified) 28 September 2022 Chatham House and Online Join authors David Sandalow and Michal Meidan to discuss their upcoming book. China is the world’s largest emitter of greenhouse gases and a key player in tackling the global climate crisis. Its stated climate policies, namely its high-level targets to peak emissions by 2030 and to achieve carbon neutrality by 2060, are significant. But while national-level ministries, local governments and businesses are setting climate roadmaps, implementation is challenging at times. In the current context of the global energy market and geopolitical turmoil, China’s need to maintain energy security can seem at odds with its climate pledges. The authors will present the book, which examines Chinese emissions, the impacts of climate change in China, as well as China’s domestic and international climate change policies and the main implementation challenges these policies face. Full Article
view Review: The Cultural Revolution still haunts China By www.chathamhouse.org Published On :: Mon, 30 Jan 2023 13:01:21 +0000 Review: The Cultural Revolution still haunts China The World Today mhiggins.drupal 30 January 2023 Tania Branigan’s searching ‘Red Memory’ reveals the costs to Chinese society of not addressing that upheaval’s lingering injustices, writes Nathan Law. Red Memory: Living, Remembering and Forgetting China’s Cultural RevolutionTania Branigan, Faber, £20 The Cultural Revolution, a decade-long socio-political upheaval initiated by Chairman Mao Zedong in 1966, caused as many as two million deaths and reshaped China. Under the influence of Mao’s personality cult, an entire nation was mobilized to purge the ‘reactionary elements’ in society and the Chinese Communist Party through public denunciation and demolition of traditional heritages. Children turned on their parents; pupils murdered their teachers, and those who survived the summary public trials were often banished – as a young Xi Jinping himself was, living in a cave for seven years, after his father fell from favour. Impossible moral choices In her engaging and sensitive narrative account of the revolution’s upheaval and its consequences, Tania Branigan, the Guardian’s China correspondent between 2008 and 2015, speaks to some of those who survived those terrible years, considers their impossible moral choices and explores the far-reaching legacy of the revolution in present-day China. Mao urged the party to cleanse itself of its ‘class enemies’: ‘capitalists’ such as landowners and shopkeepers, but also artists, farmers and university professors. Often their family members were tainted by association and persecuted. Branigan captures the awful sense of intimate betrayal and tragedy nowhere more than in the testimony of Zhang Hongbing, a lawyer turned zealous Red Guard. What I did to my mother was worse even than to an animal Zhang Hongbing, former Red Guard Zhang denounced his mother, a hospital worker, as a ‘counter-revolutionary’ because her father owned land. She was eventually executed but not before her son struck her twice during her arrest to show his party loyalty. ‘What I did to my mother was worse even than to an animal,’ the remorseful Zhang tells Branigan. Zhang points out that his actions were far from uncommon: ‘The whole country was doing it.’ This unreconciled sense of betrayal and fear still blights China: ‘Our society is ethically hollow. If we trace these problems to their roots, we are likely to find them in the Cultural Revolution,’ one survivor is quoted as writing. Branigan encapsulates the difficulties around reconciliation and remembering in the story of Song Binbin. As a schoolgirl in 1966, she and two classmates were the first to pin up a poster attacking teachers for urging students to focus on their work instead of the revolution. Song’s classmates then beat the school vice principal Bian Zhongyun to death in the playground. The case was never properly investigated, and the death was dismissed as an accident. The pain of remembering In 2014, Song apologized publicly for the poster and expressed a sense of guilt for not intervening on Bian’s behalf. But Bian’s widower rejected the apology. Song did not speak to Branigan herself, instead allowing her friends to speak in her defence. ‘They had spoken of truth and reconciliation, but not once of justice. Every remark brought them towards closure, not accountability,’ Branigan writes. The inability to come to terms with the past pervades the book, most of whose interviewees express feelings of resentment, fear and shame about the Cultural Revolution. I sensed the same emotions when, as a boy, I talked to a neighbour in Hong Kong who was then in his 70s. He escaped from China in the late 1960s due to political and economic strains. He simply nodded and fell silent when I asked him to elaborate. The Cultural Revolution warrants no more than a few paragraphs in official textbooks As Branigan writes: ‘Most Cultural Revolution survivors had learnt to bend with the will of the time; not only to do as they were told but to imply that doing so was their own idea. It was better – safer – to stay silent or lie.’ This collective trauma is exacerbated by official unwillingness to address the past. The Cultural Revolution warrants no more than a few paragraphs in official textbooks with no mention of the suffering it unleashed. Documents of the period that might tarnish the CCP remain unavailable; any attempts to interrogate the Cultural Revolution are condemned as ‘historical nihilism’ by the party. Full Article
view Interview: Nicole Hemmer By www.chathamhouse.org Published On :: Tue, 27 Sep 2022 17:38:39 +0000 Interview: Nicole Hemmer The World Today rescobales.drupal 27 September 2022 The political historian talks to Mike Higgins about how Donald Trump has transformed the US midterm elections and the Republican party’s lurch further right. Partisans: The Conservative Revolutionaries Who Remade American Politics in the 1990sNicole Hemmer, Basic Books, $18.99 In Partisans, you argue that the American political far right had been preparing the conditions for Donald Trump for 25 years and ‘the puzzle pieces snapped into place’ when he was nominated in 2016. What did you mean by that? There were changes happening in plain sight over a quarter of a century. Such as the rise of presidential candidates who had never held elected office but who had a following in conservative media and cable news more broadly. There was also a turn towards pessimism, to connections with extreme groups and to procedural extremism in the Republican Party, such as the impeachment of Bill Clinton over what most Americans agreed was a small indiscretion. All that accelerates in the 2000s and 2010s to the point where if you look back from Trump’s election, he suddenly seems eligible in a way that I don’t think he was in 2015 during his ascendancy. How did the end of the Cold War open the door for the hard right in the early 1990s? The Cold War is so important to making sense of conservative politics in the United States because it sat at the core of American conservatism for 50 years. Opposition to Soviet communism held together the conservative coalition. It brought together religious conservatives who talked about the atheistic Soviet Union with the libertarians who were fearful of a big state. The Cold War forced conservatives to talk in a language of freedom and democracy The Cold War forced conservatives to talk in a language of freedom and democracy because that was the way that the US was different from the Soviet Union. Ronald Reagan, in particular, was a master of this. It had real implications for domestic policy. Reagan embraced free trade and talked about immigration and diversity as things that were great for America. And then the Cold War ends, and you have politicians like Pat Buchanan [a former White House Communications Director] who had been beating the Reagan line for years, coming out and saying: ‘You know what? Immigration is bad and immigrants are bad. They are harmful for the United States. Free Trade is bad. We need to have more protectionist economy and build Fortress America. And, by the way, democracy might not actually be the best form of government for our country. The Marine Corps and IBM are better run than the federal government, and those are autocratic governed institutions.’ It allowed a resurgence of a right-wing politics that the US hadn’t seen since the 1930s and 1940s. It would become a powerful political movement within conservatism that we ultimately see taking over the Republican Party by the 2010s. What was it that allowed far-right figures such as Rush Limbaugh to take advantage of the transformation of the media in the 1990s? Part of what they saw in it was interactivity. We tend to associate that with the internet and with the rise of social media, but call-in national radio and cable TV gave people an opportunity to have their voices heard. The most popular TV show on CNN was Larry King Live, a call-in show. That interactivity fed into this idea that a frustrated populace suddenly had a voice, and it was easy to play on that sense of frustration. Also, the right was innovative because they had been focused on alternative media for decades. The right was innovative because they had been focused on alternative media for decades So, as you get new formats in the 1990s like political talk radio and cable news, conservatives were already in that space looking for ways to get their message across. Also, journalistic objectivity in the 1990s became getting a voice from the right and a voice from the left, which opened the door for a new generation of conservative pundits such as TV hosts Laura Ingraham and Ann Coulter. You have these incentives drawing the right into this new media and all of these conservatives in the base who are looking for right-wing voices. There are hearings into the January 6, 2021, Capitol invasion and an FBI investigation into the alleged presence of confidential papers at Trump’s residence Mar-a-Lago. Are we about to witness the insurgent far right within the Republican Party being brought to account legally? There has been more accountability than I anticipated at the beginning of the Trump presidency. Some innovative legal techniques are being used successfully, such as sedition and conspiracy charges against some of the Capitol rioters. Steve Bannon, one of Trump’s chief advisers in the 2016 campaign, has been charged with money laundering, conspiracy and fraud during the Trump presidency. Will that accountability lead to a fundamental transformation of right-wing politics in the US? I wouldn’t bet on that. How is the radicalism of the Republican party shaping the upcoming mid-term elections? The real radicalism in the Republican Party now is its willingness to use both procedural mechanisms but also mob violence to get the electoral outcomes that it wants – something that we saw with the insurrection on January 6, 2021. If Republicans at the midterms vote in candidates prepared to overturn election results they dislike, that’s a challenge to American democracy That makes the mid-terms an existential election if Republicans are able to vote in candidates who are running on a platform of throwing out election results if Republicans don’t win. That is a real challenge to the future of American democracy. As long as the political system is organized around one party that respects the rules of democracy and one party that fights against them, each election is going to be existential. It will make mid-term elections have the weight that the 2016 and 2020 presidential elections had. Did the far right misunderstand the electorate when it comes to abortion, considering the strong reaction to the Dobbs ruling? I think that is exactly right, and it’s fascinating. A major turn happens in American politics between the 1980s and the 1990s, especially on the right. Ronald Reagan built these broad coalitions. He was winning landslide elections, and building this ‘big tent’ party that would bring in people who didn’t identify as Republicans or conservatives. By the time you get to the 1990s, you have this idea of the Rino – politicians who are ‘Republican in name only’. You had to be purer and purer when it came to your right-wing politics. And the Republican Party grew a lot more unpopular. It has lost elections because of the extremism of its candidates, but it has still been able to win democratic elections without majorities, something we saw in 2000 and 2016. The outcome of it all is exactly what you are seeing right now, that in many ways the conservative movement has got something it wanted for half a century, which is the overturning of Roe v Wade – something that energized its space for a very long time. Now that the dog has caught the fire truck, it is looking around and saying: ‘Oh, people do not like this.’ August’s referendum in Kansas that upheld the right to abortion mobilized lots of voters August’s referendum in Kansas that upheld the right to abortion mobilized lots of voters who normally wouldn’t have come out for an off-year election. As you get more stories of 10-year-old rape victims who have to go to a different state to get an abortion, or stories of women who have high-risk pregnancies not able to get medical care because of these new extremist laws, that really does mobilize a population who understand what is at stake. It is not just their access to abortion, but to reproductive healthcare more broadly. Not everywhere, but in some places that is going to change the dynamics of these mid-term races. Full Article
view US and Europe Strategic Security Cooperation: The View from Washington By www.chathamhouse.org Published On :: Thu, 09 Mar 2023 11:17:13 +0000 US and Europe Strategic Security Cooperation: The View from Washington 27 March 2023 — 9:00AM TO 10:00AM Anonymous (not verified) 9 March 2023 Chatham House As the US prepares to enter the next presidential election cycle, can the transatlantic alliance stay the course, especially against a deepening Russia-China partnership? Thank you for your interest in joining our event. Please plan to arrive at Chatham House from 08:45 GMT as the event will begin promptly at 09:00. The Biden administration’s response to Russia’s war in Ukraine and the rise of a globally assertive China, as articulated in the 2022 US national strategy, is to ‘constrain Russia and out-compete China’. It needs Europe as a partner and ally for both – yet Europe is also an object and a battleground in this era of strategic competition. As the US prepares to enter the next presidential election cycle, can the transatlantic alliance stay the course, especially against a deepening Russia-China partnership? Can Europeans, in particular, move from deepening dependency to greater agency and self-reliance? What is the role for Germany – and for the UK? Full Article
view Independent Thinking: UK Integrated Review, Georgia protests By www.chathamhouse.org Published On :: Thu, 16 Mar 2023 19:26:37 +0000 Independent Thinking: UK Integrated Review, Georgia protests Audio NCapeling 16 March 2023 Episode 19 of our weekly podcast examines the AUKUS deal, UK defence priorities, and the state of Georgia’s democracy following anti-government protests. The UK and Australia will soon be building nuclear submarines together, but is the UK’s tilt to the Indo-Pacific sustainable? Two years on from the last Integrated Review, has the UK finally clarified its foreign policy priorities on Russia, China, and on defence? And is the money there to do it all? Also on the show, the panel discusses Georgia following recent anti-government protests in Tbilisi. Following the Rose revolution in 2003, Georgia seemed to be on a path towards closer ties with NATO and the European Union (EU). But the country’s government has recently moved closer to Russia and Vladimir Putin. What is the state of Georgia’s democracy and where is the country heading? Joining Bronwen Maddox from Chatham House is Creon Butler, director of our Global Economy and Finance programme, Professor Andrew Dorman, editor of the International Affairs journal, and Alice Billon-Galland, research fellow in our Europe Programme. They are joined by Natia Seskuria, associate fellow with the Royal United Services Institute (RUSI) and Arthur Snell, former diplomat and host of the podcast Doomsday Watch. About Independent Thinking A weekly podcast hosted by Chatham House director Bronwen Maddox, in conversation with leading policymakers, journalists, and Chatham House experts providing insight on the latest international issues. Full Article
view Reforming the EU: A View From Poland By f1.media.brightcove.com Published On :: Fri, 11 May 2018 00:00:00 +0100 Full Article
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view Thematic review series: Lipid Posttranslational Modifications. Protein palmitoylation by a family of DHHC protein S-acyltransferases By www.jlr.org Published On :: 2006-06-01 David A. MitchellJun 1, 2006; 47:1118-1127Thematic Reviews Full Article
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view Thematic review series: The Pathogenesis of Atherosclerosis The oxidation hypothesis of atherogenesis: the role of oxidized phospholipids and HDL By www.jlr.org Published On :: 2004-06-01 Mohamad NavabJun 1, 2004; 45:993-1007Thematic Reviews Full Article
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view Thematic review series: The Pathogenesis of Atherosclerosis. Effects of infection and inflammation on lipid and lipoprotein metabolism mechanisms and consequences to the host By www.jlr.org Published On :: 2004-07-01 Weerapan KhovidhunkitJul 1, 2004; 45:1169-1196Thematic Reviews Full Article
view Thematic review series: Adipocyte Biology. The perilipin family of structural lipid droplet proteins: stabilization of lipid droplets and control of lipolysis By www.jlr.org Published On :: 2007-12-01 Dawn L. BrasaemleDec 1, 2007; 48:2547-2559Thematic Reviews Full Article
view The amphipathic helix in the exchangeable apolipoproteins: a review of secondary structure and function By www.jlr.org Published On :: 1992-02-01 JP SegrestFeb 1, 1992; 33:141-166Reviews Full Article
view If You Think Blocking People Over Political Views Is Petty, Just Wait Until You See The Other Reasons People Shared By www.yahoo.com Published On :: 2024-11-11T20:07:53Z Full Article
view Review: Decolonization and its discontents By www.chathamhouse.org Published On :: Mon, 01 Aug 2022 08:27:03 +0000 Review: Decolonization and its discontents The World Today mhiggins.drupal 1 August 2022 Jenna Marshall on a lively if flawed argument to find a way forward in a debate that has descended ‘into acrimony’. Against Decolonization: Taking African Agency SeriouslyOlufemi Taiwo, Hurst, £14.99 Decolonization was once heralded as a moment of potential and possibility for the formerly imperial world to chart a new way forward no longer tied to the apparatus of empire. It marked a period of transition to nation states – and an expansion of a rights-based international community that would dispense with the morally bankrupt regime of racism, dispossession and subjugation that characterized colonialism. The descent of the decolonization debate Half a century later, the debate surrounding decolonization has descended into acrimony. Some factions cast the issue of decolonization as a sustained attack on British and western culture writ large; other disparate voices coalesce around related social justice issues such as inequality, climate change and education. Decolonization has become ubiquitous in the public domain – and its ubiquity is the problem Decolonization has become ubiquitous in the public domain – and its ubiquity is the problem. In Against Decolonization, Olufemi Taiwo renounces a concept he conceives as having been emptied of serious study and analytical purchase; one incapable of addressing the complexities of modern global politics and more importantly, Africa’s place in it. Although the book attacks the inexhaustible ways in which the ‘trope of decolonization’ has been deployed, Taiwo is less bothered by the purported failures of scholars he deems ‘decolonizers’ and focuses his attention instead on the political landscape of African countries, past and present. Central to the book’s argument are two distinct scholarly strands on decolonization. The first, legal focus, centres on the political and economic forces of state-building. The second essays an ‘ideology’ of decolonization that rests on ‘forcing an ex-colony to forswear on pain of being forever under the yoke of colonization any and every cultural, political, intellectual, social and linguistic artefact, idea, process, institution and practice that retains even the slightest whiff of the colonial past’. Whether one should characterize the latter as simply a field of study or a potential set of policy arrangements remains unclear – yet what is certain is that it is too nebulous, too elastic, too open-ended to offer any substantive model or mechanism to understand postcolonial Africa. Correcting Eurocentric narcissism The decolonization research agenda in Africa came to prominence during the Cold War period of national liberation struggles. The intellectual project that followed centred on dismantling Eurocentrism as colonial subjugation through its promotion of the West as the crucible of legitimate and scientific knowledge. Since then, scholars have argued that decolonization itself has become compromised by its enduringly Eurocentric gaze at the expense of the agency of African thinkers, creatives and statesmen and women. Taiwo seeks to correct this narcissism – and the omissions left in its wake – by introducing lesser-known Africans and pan-African scholars and cultural figures. These voices, he hopes, will illuminate issues often ignored by ‘decolonizers’ and spark a ‘renewed interest in an appreciation of the many different ways in which African thinkers have responded to the colonial experience’. The decolonization of language Taiwo challenges the decolonization of language as an oversold promise. Romanticizing an imagined, pristine African pre-colonial past, he says, ultimately leads to nativism and atavism. As a case in point, Taiwo highlights bureaucratic instances of ‘language policy planning’ to deploy African languages in places such as Niger, Mali, Cameroon, Senegal and Nigeria that were hindered by multilingualism, education and high rates of illiteracy. The abstract language of decolonization allows western scholars to engage with the concept without considering their own complicity in upholding systems of exclusion The author goes on to confront the abstract language of decolonization, which, he says, allows western scholars to unproblematically engage with the concept without any serious consideration of their own complicity in upholding systems of exclusion. It entrenches their own institutional power within the academy, amplifies their perspectives at the expense of others, and limits the possibilities for understanding the problems of world politics with deleterious effects on policy. It is a serious claim, but there are issues to be addressed: Taiwo assumes there is coherence among scholars of decolonization, which is not the case. When Taiwo approaches how to foster political systems that cater to the needs of their citizens he dismantles the binary of ‘West as modern’ v ‘Africa as traditional’. Chieftaincies as traditional African governance, he points out, were the product of colonial anthropology, not Africans themselves. From the Fanti Confederation of 1871 to the Egba United Government in what is now Nigeria, Taiwo demonstrates that there has been a sustained tradition towards demands for democratic values. As he concedes an intellectual neglect of African philosophers that underlies the design and operations of Africa’s political institutions, Taiwo’s initial dismissal of the significance of cultural decolonization deserves another look. How should political and economic drives toward self-determination be advanced in the absence of knowledge shaped and mediated through African lived experiences? In this respect, the tale of two decolonizations – the legal alongside the ideological – suggest an unhelpful, if not false, binary. The problem of reconciling modernity and colonialism What resonates throughout the book is the idea that Europe cannot profess to hold an exclusive intellectual claim to modernity. Its universal aspirations are open to all of humanity, allowing those who have historically been marginalized to be worldmakers. The idea that modernity and colonialism are irreconcilable is problematic. For instance, Taiwo argues that the curtailment of capitalism in Africa by restricting the growth of the middle classes while limiting competition between African capitalists and the metropole is the consequence of colonialism. Capitalism not only requires inequality for it to function but that race – as a mechanism for producing ‘difference’ – enshrines it Yet the celebrated cultural anthropologist Sidney Mintz established an understanding that the matter for debate is not whether non-westerners were part of the modern system, but how and to what degree they were included and able to actualise its ideals. The emerging capitalist world economy needed non-western lands and labour, and so they were conscripted to this end. Recent abolitionist and black radical scholarship has built on this argument to maintain that capitalism not only requires inequality for it to function but that race – as a mechanism for producing ‘difference’ – enshrines it. Acknowledging the unacknowledged In the end, Taiwo communicates a palpable frustration at the state of academic discourses on contemporary Africa under the guise of emancipatory and radical scholarship. He offers an alternative approach whereby African students might rid themselves of a faddism that is ‘at best unsatisfactory’ and at worst produces ‘confusion, obscurantism, if not outright distortion and falsification’. Yet out of this irritation, Taiwo’s greatest contribution in Against Decolonization might be to urge an acknowledgement of how and to what degree decolonization has become subdued and its political possibilities curtailed. He ultimately urges us to reconsider the purpose of the decolonization academic movement as an ethics to abide by rather than a social theory of the postcolonial world. This requires those ‘decolonizers’ on whose careers the term is built to adopt greater intellectual humility – to resist the posture of the anarchist radical scholar armed for the ‘good fight’. Instead, they should apply a scholarly curiosity to genuinely engage with those already on the battlefield, so to speak; those ‘doing the work’ in practice, but who have been unacknowledged until now. Full Article
view Review: the rise of Africa’s superwomen By www.chathamhouse.org Published On :: Mon, 01 Aug 2022 09:53:38 +0000 Review: the rise of Africa’s superwomen The World Today mhiggins.drupal 1 August 2022 From foster care in England to colonialism’s legacy in Zimbabwe, this set of essays on race, feminism and identity is searingly honest, says Masiyaleti Mbewe. Black and FemaleTsitsi Dangarembga, Faber, £9.99 The 1988 novel Nervous Conditions by the Zimbabwean author Tsitsi Dangarembga is considered one of Africa’s finest literary exports. It won the Commonwealth Writers’ Prize and alongside The Book of Not (2006) and This Mournable Body (2018), shortlisted for the 2020 Booker Prize, forms a trilogy of semi-autobiographical novels that grapple with the gendered colonial oppression of young black girls and women from Southern Rhodesia through to Zimbabwe. In Black and Female, Dangarembga continues the interrogation of these intersections in an unflinchingly honest and personal, if occasionally dense, collection of essays. Along the way, she examines the sheer magnitude of colonialism’s effects on African people, and how they ripple through her early childhood in England and her formative years as a writer, filmmaker and feminist activist in post-independence Zimbabwe. ‘Writing While Black and Female’ In 1961 Dangarembga’s parents relocated from Southern Rhodesia to the UK. While they worked and studied in London, they put their two-year-old daughter, her older brother and, later, her younger sister into private foster care in Dover, Kent (as many Africans did – a fact that was new to me). The first essay, ‘Writing While Black and Female’, takes a painful look at the four years she spent with her foster parents, Mummy-Gran and Daddy Henry. Blackness, she learned in those years, was a consequence of her non-whiteness. So Dangarembga writes of the momentary elation she felt when a stranger addressed her as a ‘lovely little piccaninny’, giving her ‘a category I could wield against the void of no longer being’. To cope with this sort of racialization and her abandonment, the young Dangarembga turned to disassociation and self-harm. Blackness is a condition imposed on me, rather than being an experienced identity Tsitsi Dangarembga As she writes: ‘Blackness is a condition imposed on me, rather than being an experienced identity.’ Instead of ‘black’ people, therefore, Dangarembga prefers the term ‘highly melanated people’. It is a resonant phrase, highlighting the inherently ridiculous nature of racism. Dangarembga’s ‘Africanness’ shifts into focus upon her return to Rhodesia in 1965. At first, other children refused to play with her and her siblings, calling them ‘varungu’ (white people). As she describes it: ‘The dance of my identities … became frenetic’. In ‘Black, Female and the Superwoman Black Feminist’, the second essay, Dangarembga is adamant about the urgent necessity of a black feminist practice that is centred on action to provide real, material change. Along the way, she makes a distinction – a slightly uneasy one to my mind – between the patriarchy that western colonization imposed, based on private ownership, and the patriarchy of pre-colonial African society with its foundations in kinship that devolved power to an extent. Dangarembga’s discussion of a more accommodating, pre-colonial patriarchy is nuanced, but it jars a little ‘Hence women could and did become rulers and warriors, and royal spirit mediums called mhondoro,’ Dangarembga writes approvingly. She is making a nuanced point; but the idea of a more accommodating sort of patriarchy jars a little nonetheless. While independence may have arrived for Zimbabwe more than 40 years ago, Dangarembga argues strongly that the subjugation of women and feminists at the hands of the ruling Zanu-PF government continues as an extension of colonial rule. Indeed, beyond Zimbabwe, black feminists remain ‘a small, often embattled group’ across Africa, believes Dangarembga. Pointedly, she criticizes global feminism’s greater focus on optics than on practical activism As a young black feminist who is part of this ‘small, embattled group’, I should say we have been able to foster large communities digitally and otherwise to work around the hostility we are often faced with. Despite internet shutdowns and restrictions, we resist – an act Dangarembga encourages. Resistance, she says, starts with establishing community despite these difficulties. At the nucleus of Dangarembga’s argument is the ‘superwoman’ of the essay’s title, the African woman who doesn’t require external factors to be inspired to action but who continuously draws on what Dangarembga calls ‘internal agency’ that derives from ‘an unrelenting fight for survival and dignity’. Pointedly, she criticizes global feminism’s greater focus on optics than activism in the practical sense. One only has to observe the performative allyship and ‘Instagram activism’ rampant on the internet today to see her point. The complexities of decolonization In the final essay, ‘Decolonization as Revolutionary Imagining’, Dangarembga turns her gaze upon the ‘highly stratified’ European societies that outsourced their violent inequality to their empires and ‘the work of decolonization’. However, decolonial discourse is complex, and it is here that the writing occasionally gets bogged down. Fewer recommendations with more elaboration perhaps would have helped. She herself acknowledges the difficulties of decolonization. Centuries of the Enlightenment and its logic of ‘racism, slavery, genocide and colonization’ are hard to uproot ‘whatever one’s melanin concentration’, she writes. Nevertheless, Dangarembga concludes with the radical determination to dismantle that is evident throughout this searing yet hopeful collection: ‘The trajectory of current and future generations depends on that uprooting.’ Full Article
view Performance Characteristics of a New Generation 148-cm Axial Field-of-View uMI Panorama GS PET/CT System with Extended NEMA NU 2-2018 and EARL Standards By jnm.snmjournals.org Published On :: 2024-11-07T04:28:32-08:00 Visual Abstract Full Article
view From the frontlines: Our CISO’s view of Pacific Rim By news.sophos.com Published On :: Thu, 31 Oct 2024 12:41:21 +0000 On beyond “Detect and Respond” and “Secure by Design” Full Article Security Operations Pacific Rim Pacific Rim thought leadership Sophos X-Ops
view Interrogation of kinase genetic interactions provides a global view of PAK1-mediated signal transduction pathways [Gene Regulation] By www.jbc.org Published On :: 2020-12-11T00:06:20-08:00 Kinases are critical components of intracellular signaling pathways and have been extensively investigated with regard to their roles in cancer. p21-activated kinase-1 (PAK1) is a serine/threonine kinase that has been previously implicated in numerous biological processes, such as cell migration, cell cycle progression, cell motility, invasion, and angiogenesis, in glioma and other cancers. However, the signaling network linked to PAK1 is not fully defined. We previously reported a large-scale yeast genetic interaction screen using toxicity as a readout to identify candidate PAK1 genetic interactions. En masse transformation of the PAK1 gene into 4,653 homozygous diploid Saccharomyces cerevisiae yeast deletion mutants identified ∼400 candidates that suppressed yeast toxicity. Here we selected 19 candidate PAK1 genetic interactions that had human orthologs and were expressed in glioma for further examination in mammalian cells, brain slice cultures, and orthotopic glioma models. RNAi and pharmacological inhibition of potential PAK1 interactors confirmed that DPP4, KIF11, mTOR, PKM2, SGPP1, TTK, and YWHAE regulate PAK1-induced cell migration and revealed the importance of genes related to the mitotic spindle, proteolysis, autophagy, and metabolism in PAK1-mediated glioma cell migration, drug resistance, and proliferation. AKT1 was further identified as a downstream mediator of the PAK1-TTK genetic interaction. Taken together, these data provide a global view of PAK1-mediated signal transduction pathways and point to potential new drug targets for glioma therapy. Full Article
view A review of phosphatidate phosphatase assays By www.jlr.org Published On :: 2020-12-01 Prabuddha DeyDec 1, 2020; 61:1556-1564Reviews Full Article
view Problem Notes for SAS®9 - 66524: SAS Visual Data Builder uses the wrong SAS Application Server for previewing and scheduling By Published On :: Mon, 31 Aug 2020 12:14:44 EST If you have configured more than one SAS Application Server, then SAS Visual Data Builder might unexpectedly use the wrong application server when you preview or schedule queries. This problem occurs even though you h Full Article VISANLYTBNDL+SAS+Visual+Analytics
view Problem Notes for SAS®9 - 33449: An error might occur when you use SAS 9 BULKLOAD= and BULKEXTRACT= options to load data to or extract data from the HP Neoview database on the HP Itanium platform By Published On :: Wed, 26 Aug 2020 16:21:08 EST An error might occur when you use the SAS 9 BULKLOAD= and BULKEXTRACT= options load data to or extract data from HP Neoview on the HP Itanium platform. The problem occurs because Hewlett-Packard changed the name of one of Full Article NEOVIEW+SAS/ACCESS+Interface+to+HP+Neovi
view Problem Notes for SAS®9 - 46544: Store layout view has some areas displayed with black fill rather than gray in SAS® Retail Space Management By Published On :: Wed, 26 Aug 2020 16:14:45 EST In SAS Retail Space Management, it should be possible to click on any location object, then Show Properties, and change the location fill color. This can be done on the gray-filled objects. However, w Full Article RTLSPCMGT+SAS+Retail+Space+Management
view Problem Notes for SAS®9 - 66535: You might intermittently see the error "RangeError: Maximum call stack exceeded..." when viewing a SAS Visual Analytics report By Published On :: Wed, 26 Aug 2020 15:06:43 EST When viewing a SAS Visual Analytics report, you might intermittently see an error that includes content similar to the following: Error Message: Full Article VISANLYTBNDL+SAS+Visual+Analytics
view WITHDRAWN: The Fundamental And Pathological Importance Of Oxysterol Binding Protein And Its Related Proteins [Thematic Reviews] By www.jlr.org Published On :: 2018-10-15T08:42:37-07:00 This article has been withdrawn by the authors as part of this review overlapped with the contents of Pietrangelo A and Ridgway ND. 2018. Cellular and Molecular Life Sciences. 75; 3079-98. Full Article
view Fatty acid oxidation and photoreceptor metabolic needs [Thematic Reviews] By www.jlr.org Published On :: 2020-02-24T12:30:36-08:00 Photoreceptors have high energy-demands and a high density of mitochondria that produce adenosine triphosphate (ATP) through oxidative phosphorylation (OXPHOS) of fuel substrates. Although glucose is the major fuel for central nervous system (CNS) brain neurons, in photoreceptors (also CNS), most glucose is not metabolized through OXPHOS but is instead metabolized into lactate by aerobic glycolysis. The major fuel sources for photoreceptor mitochondria remained unclear for almost six decades. Similar to other tissues (like heart and skeletal muscle) with high metabolic rates, photoreceptors were recently found to metabolize fatty acids (palmitate) through OXPHOS. Disruption of lipid entry into photoreceptors leads to extracellular lipid accumulation, suppressed glucose transporter expression, and a duel lipid/glucose fuel shortage. Modulation of lipid metabolism helps restore photoreceptor function. However, further elucidation of the types of lipids used as retinal energy sources, the metabolic interaction with other fuel pathways, as well as the crosstalk among retinal cells to provide energy to photoreceptors is not yet known. In this review, we will focus on the current understanding of photoreceptor energy demand and sources, and potential future investigations of photoreceptor metabolism. Full Article
view Bisretinoid phospholipid and vitamin A aldehyde: Shining a light [Thematic Reviews] By www.jlr.org Published On :: 2020-05-05T13:30:26-07:00 Vitamin A aldehyde covalently bound to opsin protein is embedded in a phospholipid-rich membrane that supports photon absorption and phototransduction in photoreceptor cell outer segments. Following absorption of a photon, the 11-cis-retinal chromophore of visual pigment in photoreceptor cells isomerizes to all-trans-retinal. To maintain photosensitivity 11-cis-retinal must be replaced. At the same time, however, all-trans-retinal has to be handled so as to prevent nonspecific aldehyde activity. Some molecules of retinaldehyde upon release from opsin are efficiently reduced to retinol. Other molecules are released into the lipid phase of the disc membrane where they form a conjugate (N-retinylidene-PE, NRPE) through a Schiff base linkage with phosphatidylethanolamine (PE). The reversible formation of NRPE serves as a transient sink for retinaldehyde that is intended to return retinaldehyde to the visual cycle. However, if instead of hydrolyzing to PE and retinaldehyde, NRPE reacts with a second molecule of retinaldehyde a synthetic pathway is initiated that leads to the formation of multiple species of unwanted bisretinoid fluorophores. We report on recently identified members of the bisretinoid family some of which differ with respect to the acyl chains associated with the glycerol backbone. We discuss processing of the lipid moieties of these fluorophores in lysosomes of retinal pigment epithelial (RPE) cells, their fluorescence characters and new findings related to light and iron-associated oxidation of bisretinoids. Full Article
view Retinoids in the visual cycle: Role of the retinal G protein-coupled receptor [Thematic Reviews] By www.jlr.org Published On :: 2020-06-03T16:30:29-07:00 Driven by the energy of a photon, the visual pigments in rod and cone photoreceptor cells isomerize 11-cis-retinal to the all-trans configuration. This photochemical reaction initiates the signal transduction pathway that eventually leads to the transmission of a visual signal to the brain and leaves the opsins insensitive to further light stimulation. For the eye to restore light sensitivity, opsins require recharging with 11-cis-retinal. This trans–cis back conversion is achieved through a series of enzymatic reactions composing the retinoid (visual) cycle. Although it is evident that the classical retinoid cycle is critical for vision, the existence of an adjunct pathway for 11-cis-retinal regeneration has been debated for many years. Retinal pigment epithelium (RPE)–retinal G protein-coupled receptor (RGR) has been identified previously as a mammalian retinaldehyde photoisomerase homologous to retinochrome found in invertebrates. Using pharmacological, genetic, and biochemical approaches, researchers have now established the physiological relevance of the RGR in 11-cis-retinal regeneration. The photoisomerase activity of RGR in the RPE and Müller glia explains how the eye can remain responsive in daylight. In this review, we will focus on retinoid metabolism in the eye and visual chromophore regeneration mediated by RGR. Full Article
view Signaling roles of phosphoinositides in the retina [Thematic Reviews] By www.jlr.org Published On :: 2020-06-15T14:33:05-07:00 The field of phosphoinositide signaling has expanded significantly in recent years. Phosphoinositides (PIs) are universal signaling molecules that directly interact with membrane proteins or with cytosolic proteins containing domains that directly bind phosphoinositides and are recruited to cell membranes. Through the activities of PI kinases and PI phosphatases, seven distinct phosphoinositide lipid molecules are formed from the parent molecule phosphatidylinositol. PI signals regulate a wide range of cellular functions, including cytoskeletal assembly, membrane binding and fusion, ciliogenesis, vesicular transport, and signal transduction. Given the many excellent reviews on phosphoinositide kinases, phosphoinositide phosphatases, and PIs in general, in this review, we discuss recent studies and advances in PI lipid signaling in the retina. We specifically focus on PI lipids from vertebrate (e.g. bovine, rat, mice, toad, and zebrafish) and invertebrate (e.g. drosophila, horseshoe crab, and squid) retinas. We also discuss the importance of PIs revealed from animal models and human diseases, and methods to study PI levels both in vitro and in vivo. We propose that future studies should investigate the function and mechanism of activation of PI-modifying enzymes/phosphatases and further unravel PI regulation and function in the different cell types of the retina. Full Article
view Lipid Conformational Order and the Etiology of Cataract and Dry Eye [Thematic Reviews] By www.jlr.org Published On :: 2020-06-18T14:30:29-07:00 Lens and tear film lipids are as unique as the systems they reside in. The major lipid of the human lens is dihydrosphingomylein, found in quantity only in the lens. The lens contains a cholesterol to phospholipid molar ratio as high as 10:1, more than anywhere in the body. Lens lipids contribute to maintaining lens clarity, and alterations in lens lipid composition due to age are likely to contribute to cataract. Lens lipid composition reflects adaptations to the unique characteristics of the lens: no turnover of lens lipids or proteins; the lowest amount of oxygen than any other tissue and contains almost no intracellular organelles. The tear film lipid layer (TFLL) is also unique. The TFLL is a thin, 100 nm layer of lipid on the surface of tears covering the cornea that contributes to tear film stability. The major lipids of the TFLL are wax esters and cholesterol esters that are not found in the lens. The hydrocarbon chains associated with the esters are longer than those found anywhere in the body, as long as 32 carbons, and many are branched. Changes in the composition and structure of the 30,000 different moieties of TFLL contribute to the instability of tears. The focus of the current review is how spectroscopy has been used to elucidate the relationships between lipid composition, conformational order and function and the etiology of cataract and dry eye. Full Article
view FH through the Retrospectoscope [Thematic Reviews] By www.jlr.org Published On :: 2020-07-10T14:36:31-07:00 AbstractAfter training as a gastroenterologist in the UK the author became interested in lipidology while he was a research fellow in the USA and switched careers after returning home. Together with Nick Myant he introduced the use of plasma exchange to treat FH homozygotes and undertook non-steady state studies of LDL kinetics, which showed that the fractional catabolic rate of LDL remained constant irrespective of pool size. Subsequent steady-state turnover studies showed that FH homozygotes had an almost complete lack of receptor-mediated LDL catabolism, providing in vivo confirmation of the Nobel Prize-winning discovery by Goldstein and Brown that LDL receptor dysfunction was the cause of FH. Further investigation of metabolic defects in FH revealed that a significant proportion of LDL in homozygotes and heterozygotes was produced directly via a VLDL-independent pathway.Management of heterozygous FH has been greatly facilitated by statins and PCSK9 inhibitors but remains dependent upon lipoprotein apheresis in homozygotes. In a recent analysis of a large cohort treated with a combination of lipid-lowering measures survival was markedly enhanced in homozygotes in the lowest quartile of on-treatment serum cholesterol. Emerging therapies could further improve the prognosis of homozygous FH whereas in heterozygotes the current need is better detection. Full Article
view The emerging roles of the macular pigment carotenoids throughout the lifespan and in prenatal supplementation [Thematic Reviews] By www.jlr.org Published On :: 2020-07-24T07:33:25-07:00 Since the publication of the Age-Related Eye Disease Study (AREDS2) in 2013, the macular pigment carotenoids lutein and zeaxanthin have become well known to both the eye care community and the public. It is a fascinating aspect of evolution that primates have repurposed photoprotective pigments and binding proteins from plants and insects to protect and enhance visual acuity. Moreover, utilization of these plant-derived nutrients has been widely embraced for preventing vision loss from age-related macular degeneration (AMD). More recently, there has been growing awareness that these nutrients can also play a role in improving visual performance in adults. On the other hand, the potential benefits of lutein and zeaxanthin supplementation at very young ages have been underappreciated. In this review, we examine the biochemical mechanisms and supportive data for lutein and zeaxanthin supplementation throughout the lifespan, with particular emphasis on prenatal supplementation. We propose that prenatal nutritional recommendations may aim at improving maternal and infant carotenoid status. Prenatal supplementation with lutein and zeaxanthin might enhance infant visual development and performance and may even prevent retinopathy of prematurity, possibilities that should be examined in future clinical studies. Full Article
view Docosanoid signaling modulates corneal nerve regeneration: effect on tear secretion, wound healing, and neuropathic pain [Thematic Reviews] By www.jlr.org Published On :: 2020-08-11T12:36:10-07:00 The cornea is densely innervated, mainly by sensory nerves of the ophthalmic branch of the trigeminal ganglia (TG). These nerves are important to maintain corneal homeostasis, and nerve damage can lead to a decrease in wound healing, an increase in corneal ulceration and dry eye disease (DED), and neuropathic pain. Pathologies, such as diabetes, aging, viral and bacterial infection, as well as prolonged use of contact lenses and surgeries to correct vision can produce nerve damage. There are no effective therapies to alleviate DED (a multifunctional disease) and several clinical trials using -3 supplementation show unclear and sometimes negative results. Using animal models of corneal nerve damage, we show that treating corneas with pigment epithelium-derived factor (PEDF) plus docosahexaenoic acid (DHA) increases nerve regeneration, wound healing, and tear secretion. The mechanism involves the activation of a calcium-independent phospholipase A2 (iPLA2) that releases the incorporated DHA from phospholipids and enhances the synthesis of docosanoids neuroprotectin D1 (NPD1) and a new resolvin stereoisomer RvD6i. NPD1 stimulates the synthesis of brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), and of semaphorin 7A (Sema7A). RvD6i treatment of injured corneas modulates gene expression in the TG resulting in enhanced neurogenesis; decreased neuropathic pain and increased sensitivity. Taken together, these results represent a promising therapeutic option to re-establish the homeostasis of the cornea. Full Article
view Sphingolipids as Critical Players in Retinal Physiology and Pathology [Thematic Reviews] By www.jlr.org Published On :: 2020-09-18T07:36:30-07:00 Sphingolipids have emerged as bioactive lipids involved in the regulation of many physiological and pathological processes. In the retina, they have been established to participate in numerous processes, such as neuronal survival and death, proliferation and migration of neuronal and vascular cells, inflammation, and neovascularization. Dysregulation of sphingolipids is, therefore, crucial in the onset and progression of retinal diseases. This review examines the involvement of sphingolipids in retinal physiology and diseases. Ceramide (Cer) emerges as a common mediator of inflammation and death of neuronal and retinal pigment epithelium cells in animal models of retinopathies such as glaucoma, age-related macular degeneration (AMD), and retinitis pigmentosa. Sphingosine-1-phosphate (S1P) has opposite roles, preventing photoreceptor and ganglion cell degeneration but also promoting inflammation, fibrosis, and neovascularization in AMD, glaucoma, and pro-fibrotic disorders. Alterations in Cer, S1P, and ceramide-1-phosphate may also contribute to uveitis. Notably, use of inhibitors that either prevent Cer increase or modulate S1P signaling, such as Myriocin, desipramine, and Fingolimod (FTY720), preserves neuronal viability and retinal function. These findings underscore the relevance of alterations in the sphingolipid metabolic network in the etiology of multiple retinopathies and highlight the potential of modulating their metabolism for the design of novel therapeutic approaches. Full Article
view Cholesterol homeostasis in the vertebrate retina: Biology and pathobiology [Thematic Reviews] By www.jlr.org Published On :: 2020-10-20T09:30:27-07:00 Cholesterol is a quantitatively and biologically significant constituent of all mammalian cell membrane, including those that comprise the retina. Retinal cholesterol homeostasis entails the interplay between de novo synthesis, uptake, intra-retinal sterol transport, metabolism and efflux. Defects in these complex processes are associated with several congenital and age-related disorders of the visual system. Herein, we provide an overview of the following topics: a) cholesterol synthesis in the neural retina; b) lipoprotein uptake and intraretinal sterol transport in the neural retina and the retinal pigment epithelium (RPE); c) cholesterol efflux from the neural retina and the RPE; and d) biology and pathobiology of defects in sterol synthesis and sterol oxidation in the neural retina and the RPE. We focus, in particular, on studies involving animal models of monogenic disorders pertinent to the above topics, as well as in vitro models using biochemical, metabolic, and omic approaches. We also identify current knowledge gaps as well as opportunities in the field that beg further research in this topic area. Full Article
view Overview of how N32 and N34 elovanoids sustain sight by protecting retinal pigment epithelial cells and photoreceptors [Thematic Reviews] By www.jlr.org Published On :: 2020-10-26T14:30:21-07:00 The essential fatty acid DHA (22:6, omega-3 or n-3) is enriched in and required for the membrane biogenesis and function of photoreceptor cells (PRC), synapses, mitochondria, etc. of the CNS. PRC DHA becomes an acyl chain at the sn-2 of phosphatidylcholine (PC), amounting to more than 50% of the PRC outer segment phospholipids, where phototransduction takes place. Very long chain PUFAs (VLC-PUFAs,n-3, ≥ 28 carbons) are at the sn-1 of this PC molecular species and interact with rhodopsin. PRC shed their tips (DHA-rich membrane disks) daily, which in turn are phagocytized by the retinal pigment epithelium (RPE), where DHA is recycled back to PRC inner segments to be used for the biogenesis of new photoreceptor membranes. Here, we review the structures and stereochemistry of novel elovanoid (ELV)-N32 and ELV-N34 to be ELV-N32: (14Z,17Z,20R,21E,23E,25Z,27S,29Z)-20,27-dihydroxydo-triaconta-14,17,21,23,25,29-hexaenoic acid; ELV-N34: (16Z,19Z,22R,23E,25E,27Z,29S,31Z)-22,29-dihydroxytetra-triaconta-16,19,23,25,27,31-hexaenoic acid. ELVs are low-abundance, high-potency, protective mediators. Their bioactivity includes enhancing of anti-apoptotic and pro-survival protein expression with concomitant downregulation of pro-apoptotic proteins when RPE is confronted with uncompensated oxidative stress (UOS). ELVs also target PRC/RPE senescence gene programming, the senescence secretory phenotype in the interphotoreceptor matrix (IPM), as well as inflammaging (chronic, sterile, low-grade inflammation). An important lesson on neuroprotection is highlighted by the ELV mediators that target the terminally differentiated PRC and RPE, sustaining a beautifully synchronized renewal process. The role of ELVs in PRC and RPE viability and function uncovers insights on disease mechanisms and the development of therapeutics for age-related macular degeneration (AMD), Alzheimer’s disease (AD), and other pathologies. Full Article
view Lipid metabolism dysregulation in diabetic retinopathy [Thematic Reviews] By www.jlr.org Published On :: 2020-12-23T12:30:44-08:00 Lipid metabolic abnormalities have emerged as potential risk factors for the development and progression of diabetic complications, including diabetic retinopathy (DR). This review article provides an overview of the results of clinical trials evaluating the potential benefits of lipid lowering drugs, such as fibrates, omega 3 fatty acids, and statins, for the prevention and treatment of DR. Although several clinical trials demonstrated that treatment with fibrates leads to improvement of DR, there is a dissociation between the protective effects of fibrates in the retina, and the intended blood lipid classes, including plasma triglycerides, total cholesterol or HDL/LDL cholesterol ratio. Guided by these findings, plasma lipid and lipoprotein-independent mechanisms are addressed based on clinical, cell culture and animal model studies. Potential retinal-specific effects of fatty acids oxidation products, cholesterol, and ceramide, as well as lipid independent effects of PPAR alpha activation are summarized based on current literature. Overall, this review highlights promising potential of lipid-based treatment strategies further enhanced by the new knowledge of intra-retinal lipids and lipoproteins in DR. Full Article
view Chemoprevention of colorectal cancer in individuals with previous colorectal neoplasia: systematic review and network meta-analysis By www.bmj.com Published On :: Monday, December 5, 2016 - 14:46 Full Article
view Chylomicronemia from GPIHBP1 autoantibodies [Reviews] By www.jlr.org Published On :: 2020-11-01T00:05:43-07:00 Some cases of chylomicronemia are caused by autoantibodies against glycosylphosphatidylinositol-anchored HDL binding protein 1 (GPIHBP1), an endothelial cell protein that shuttles LPL to the capillary lumen. GPIHBP1 autoantibodies prevent binding and transport of LPL by GPIHBP1, thereby disrupting the lipolytic processing of triglyceride-rich lipoproteins. Here, we review the "GPIHBP1 autoantibody syndrome" and summarize clinical and laboratory findings in 22 patients. All patients had GPIHBP1 autoantibodies and chylomicronemia, but we did not find a correlation between triglyceride levels and autoantibody levels. Many of the patients had a history of pancreatitis, and most had clinical and/or serological evidence of autoimmune disease. IgA autoantibodies were present in all patients, and IgG4 autoantibodies were present in 19 of 22 patients. Patients with GPIHBP1 autoantibodies had low plasma LPL levels, consistent with impaired delivery of LPL into capillaries. Plasma levels of GPIHBP1, measured with a monoclonal antibody–based ELISA, were very low in 17 patients, reflecting the inability of the ELISA to detect GPIHBP1 in the presence of autoantibodies (immunoassay interference). However, GPIHBP1 levels were very high in five patients, indicating little capacity of their autoantibodies to interfere with the ELISA. Recently, several GPIHBP1 autoantibody syndrome patients were treated successfully with rituximab, resulting in the disappearance of GPIHBP1 autoantibodies and normalization of both plasma triglyceride and LPL levels. The GPIHBP1 autoantibody syndrome should be considered in any patient with newly acquired and unexplained chylomicronemia. Full Article
view A review of phosphatidate phosphatase assays [Reviews] By www.jlr.org Published On :: 2020-12-01T00:05:39-08:00 Phosphatidate phosphatase (PAP) catalyzes the penultimate step in the synthesis of triacylglycerol and regulates the synthesis of membrane phospholipids. There is much interest in this enzyme because it controls the cellular levels of its substrate, phosphatidate (PA), and product, DAG; defects in the metabolism of these lipid intermediates are the basis for lipid-based diseases such as obesity, lipodystrophy, and inflammation. The measurement of PAP activity is required for studies aimed at understanding its mechanisms of action, how it is regulated, and for screening its activators and/or inhibitors. Enzyme activity is determined through the use of radioactive and nonradioactive assays that measure the product, DAG, or Pi. However, sensitivity and ease of use are variable across these methods. This review summarizes approaches to synthesize radioactive PA, to analyze radioactive and nonradioactive products, DAG and Pi, and discusses the advantages and disadvantages of each PAP assay. Full Article
view Proteomics and Metaproteomics Add Functional, Taxonomic and Biomass Dimensions to Modeling the Ecosystem at the Mucosal-luminal Interface [Review] By www.mcponline.org Published On :: 2020-09-01T00:05:24-07:00 Recent efforts in gut microbiome studies have highlighted the importance of explicitly describing the ecological processes beyond correlative analysis. However, we are still at the early stage of understanding the organizational principles of the gut ecosystem, partially because of the limited information provided by currently used analytical tools in ecological modeling practices. Proteomics and metaproteomics can provide a number of insights for ecological studies, including biomass, matter and energy flow, and functional diversity. In this Mini Review, we discuss proteomics and metaproteomics-based experimental strategies that can contribute to studying the ecology, in particular at the mucosal-luminal interface (MLI) where the direct host-microbiome interaction happens. These strategies include isolation protocols for different MLI components, enrichment methods to obtain designated array of proteins, probing for specific pathways, and isotopic labeling for tracking nutrient flow. Integration of these technologies can generate spatiotemporal and site-specific biological information that supports mathematical modeling of the ecosystem at the MLI. Full Article
view Single-cell Proteomics: Progress and Prospects [Review] By www.mcponline.org Published On :: 2020-11-01T00:05:37-07:00 MS-based proteome profiling has become increasingly comprehensive and quantitative, yet a persistent shortcoming has been the relatively large samples required to achieve an in-depth measurement. Such bulk samples, typically comprising thousands of cells or more, provide a population average and obscure important cellular heterogeneity. Single-cell proteomics capabilities have the potential to transform biomedical research and enable understanding of biological systems with a new level of granularity. Recent advances in sample processing, separations and MS instrumentation now make it possible to quantify >1000 proteins from individual mammalian cells, a level of coverage that required an input of thousands of cells just a few years ago. This review discusses important factors and parameters that should be optimized across the workflow for single-cell and other low-input measurements. It also highlights recent developments that have advanced the field and opportunities for further development. Full Article
view Recent Advances in Analytical Approaches for Glycan and Glycopeptide Quantitation [Review] By www.mcponline.org Published On :: 2020-06-23T08:35:15-07:00 Growing implications of glycosylation in physiological occurrences and human disease have prompted intensive focus on revealing glycomic perturbations through absolute and relative quantification. Empowered by seminal methodologies and increasing capacity for detection, identification, and characterization, the past decade has provided a significant increase in the number of suitable strategies for glycan and glycopeptide quantification. Mass spectrometry-based strategies for glycomic quantitation have grown to include metabolic incorporation of stable isotopes, deposition of mass difference and mass defect isotopic labels, and isobaric chemical labeling, providing researchers with ample tools for accurate and robust quantitation. Beyond this, workflows have been designed to harness instrument capability for label-free quantification and numerous software packages have been developed to facilitate reliable spectrum scoring. In this review, we present and highlight the most recent advances in chemical labeling and associated techniques for glycan and glycopeptide quantification. Full Article