an MECP2 Duplication Causes Aberrant GABA Pathways, Circuits and Behaviors in Transgenic Monkeys: Neural Mappings to Patients with Autism By www.jneurosci.org Published On :: 2020-05-06T09:30:22-07:00 MECP2 gain-of-function and loss-of-function in genetically engineered monkeys recapitulates typical phenotypes in patients with autism, yet where MECP2 mutation affects the monkey brain and whether/how it relates to autism pathology remain unknown. Here we report a combination of gene–circuit–behavior analyses including MECP2 coexpression network, locomotive and cognitive behaviors, and EEG and fMRI findings in 5 MECP2 overexpressed monkeys (Macaca fascicularis; 3 females) and 20 wild-type monkeys (Macaca fascicularis; 11 females). Whole-genome expression analysis revealed MECP2 coexpressed genes significantly enriched in GABA-related signaling pathways, whereby reduced β-synchronization within fronto-parieto-occipital networks was associated with abnormal locomotive behaviors. Meanwhile, MECP2-induced hyperconnectivity in prefrontal and cingulate networks accounted for regressive deficits in reversal learning tasks. Furthermore, we stratified a cohort of 49 patients with autism and 72 healthy controls of 1112 subjects using functional connectivity patterns, and identified dysconnectivity profiles similar to those in monkeys. By establishing a circuit-based construct link between genetically defined models and stratified patients, these results pave new avenues to deconstruct clinical heterogeneity and advance accurate diagnosis in psychiatric disorders. SIGNIFICANCE STATEMENT Autism spectrum disorder (ASD) is a complex disorder with co-occurring symptoms caused by multiple genetic variations and brain circuit abnormalities. To dissect the gene–circuit–behavior causal chain underlying ASD, animal models are established by manipulating causative genes such as MECP2. However, it is unknown whether such models have captured any circuit-level pathology in ASD patients, as demonstrated by human brain imaging studies. Here, we use transgenic macaques to examine the causal effect of MECP2 overexpression on gene coexpression, brain circuits, and behaviors. For the first time, we demonstrate that the circuit abnormalities linked to MECP2 and autism-like traits in the monkeys can be mapped to a homogeneous ASD subgroup, thereby offering a new strategy to deconstruct clinical heterogeneity in ASD. Full Article
an Streaming of Repeated Noise in Primary and Secondary Fields of Auditory Cortex By www.jneurosci.org Published On :: 2020-05-06T09:30:22-07:00 Statistical regularities in natural sounds facilitate the perceptual segregation of auditory sources, or streams. Repetition is one cue that drives stream segregation in humans, but the neural basis of this perceptual phenomenon remains unknown. We demonstrated a similar perceptual ability in animals by training ferrets of both sexes to detect a stream of repeating noise samples (foreground) embedded in a stream of random samples (background). During passive listening, we recorded neural activity in primary auditory cortex (A1) and secondary auditory cortex (posterior ectosylvian gyrus, PEG). We used two context-dependent encoding models to test for evidence of streaming of the repeating stimulus. The first was based on average evoked activity per noise sample and the second on the spectro-temporal receptive field. Both approaches tested whether differences in neural responses to repeating versus random stimuli were better modeled by scaling the response to both streams equally (global gain) or by separately scaling the response to the foreground versus background stream (stream-specific gain). Consistent with previous observations of adaptation, we found an overall reduction in global gain when the stimulus began to repeat. However, when we measured stream-specific changes in gain, responses to the foreground were enhanced relative to the background. This enhancement was stronger in PEG than A1. In A1, enhancement was strongest in units with low sparseness (i.e., broad sensory tuning) and with tuning selective for the repeated sample. Enhancement of responses to the foreground relative to the background provides evidence for stream segregation that emerges in A1 and is refined in PEG. SIGNIFICANCE STATEMENT To interact with the world successfully, the brain must parse behaviorally important information from a complex sensory environment. Complex mixtures of sounds often arrive at the ears simultaneously or in close succession, yet they are effortlessly segregated into distinct perceptual sources. This process breaks down in hearing-impaired individuals and speech recognition devices. By identifying the underlying neural mechanisms that facilitate perceptual segregation, we can develop strategies for ameliorating hearing loss and improving speech recognition technology in the presence of background noise. Here, we present evidence to support a hierarchical process, present in primary auditory cortex and refined in secondary auditory cortex, in which sound repetition facilitates segregation. Full Article
an The Correlation of Neuronal Signals with Behavior at Different Levels of Visual Cortex and Their Relative Reliability for Behavioral Decisions By www.jneurosci.org Published On :: 2020-05-06T09:30:22-07:00 Behavior can be guided by neuronal activity in visual, auditory, or somatosensory cerebral cortex, depending on task requirements. In contrast to this flexible access of cortical signals, several observations suggest that behaviors depend more on neurons in later areas of visual cortex than those in earlier areas, although neurons in earlier areas would provide more reliable signals for many tasks. We recorded from neurons in different levels of visual cortex of 2 male rhesus monkeys while the animals did a visual discrimination task and examined trial-to-trial correlations between neuronal and behavioral responses. These correlations became stronger in primary visual cortex as neuronal signals in that area became more reliable relative to the other areas. The results suggest that the mechanisms that read signals from cortex might access any cortical area depending on the relative value of those signals for the task at hand. SIGNIFICANCE STATEMENT Information is encoded by the action potentials of neurons in various cortical areas in a hierarchical manner such that increasingly complex stimulus features are encoded in successive stages. The brain must extract information from the response of appropriate neurons to drive optimal behavior. A widely held view of this decoding process is that the brain relies on the output of later cortical areas to make decisions, although neurons in earlier areas can provide more reliable signals. We examined correlations between perceptual decisions and the responses of neurons in different levels of monkey visual cortex. The results suggest that the brain may access signals in any cortical area depending on the relative value of those signals for the task at hand. Full Article
an Molecular Mechanisms of Non-ionotropic NMDA Receptor Signaling in Dendritic Spine Shrinkage By www.jneurosci.org Published On :: 2020-05-06T09:30:22-07:00 Structural plasticity of dendritic spines is a key component of the refinement of synaptic connections during learning. Recent studies highlight a novel role for the NMDA receptor (NMDAR), independent of ion flow, in driving spine shrinkage and LTD. Yet little is known about the molecular mechanisms that link conformational changes in the NMDAR to changes in spine size and synaptic strength. Here, using two-photon glutamate uncaging to induce plasticity at individual dendritic spines on hippocampal CA1 neurons from mice and rats of both sexes, we demonstrate that p38 MAPK is generally required downstream of non-ionotropic NMDAR signaling to drive both spine shrinkage and LTD. In a series of pharmacological and molecular genetic experiments, we identify key components of the non-ionotropic NMDAR signaling pathway driving dendritic spine shrinkage, including the interaction between NOS1AP (nitric oxide synthase 1 adaptor protein) and neuronal nitric oxide synthase (nNOS), nNOS enzymatic activity, activation of MK2 (MAPK-activated protein kinase 2) and cofilin, and signaling through CaMKII. Our results represent a large step forward in delineating the molecular mechanisms of non-ionotropic NMDAR signaling that can drive shrinkage and elimination of dendritic spines during synaptic plasticity. SIGNIFICANCE STATEMENT Signaling through the NMDA receptor (NMDAR) is vitally important for the synaptic plasticity that underlies learning. Recent studies highlight a novel role for the NMDAR, independent of ion flow, in driving synaptic weakening and dendritic spine shrinkage during synaptic plasticity. Here, we delineate several key components of the molecular pathway that links conformational signaling through the NMDAR to dendritic spine shrinkage during synaptic plasticity. Full Article
an Nestin Selectively Facilitates the Phosphorylation of the Lissencephaly-Linked Protein Doublecortin (DCX) by cdk5/p35 to Regulate Growth Cone Morphology and Sema3a Sensitivity in Developing Neurons By www.jneurosci.org Published On :: 2020-05-06T09:30:22-07:00 Nestin, an intermediate filament protein widely used as a marker of neural progenitors, was recently found to be expressed transiently in developing cortical neurons in culture and in developing mouse cortex. In young cortical cultures, nestin regulates axonal growth cone morphology. In addition, nestin, which is known to bind the neuronal cdk5/p35 kinase, affects responses to axon guidance cues upstream of cdk5, specifically, to Sema3a. Changes in growth cone morphology require rearrangements of cytoskeletal networks, and changes in microtubules and actin filaments are well studied. In contrast, the roles of intermediate filament proteins in this process are poorly understood, even in cultured neurons. Here, we investigate the molecular mechanism by which nestin affects growth cone morphology and Sema3a sensitivity. We find that nestin selectively facilitates the phosphorylation of the lissencephaly-linked protein doublecortin (DCX) by cdk5/p35, but the phosphorylation of other cdk5 substrates is not affected by nestin. We uncover that this substrate selectivity is based on the ability of nestin to interact with DCX, but not with other cdk5 substrates. Nestin thus creates a selective scaffold for DCX with activated cdk5/p35. Last, we use cortical cultures derived from Dcx KO mice to show that the effects of nestin on growth cone morphology and on Sema3a sensitivity are DCX-dependent, thus suggesting a functional role for the DCX-nestin complex in neurons. We propose that nestin changes growth cone behavior by regulating the intracellular kinase signaling environment in developing neurons. The sex of animal subjects is unknown. SIGNIFICANCE STATEMENT Nestin, an intermediate filament protein highly expressed in neural progenitors, was recently identified in developing neurons where it regulates growth cone morphology and responsiveness to the guidance cue Sema3a. Changes in growth cone morphology require rearrangements of cytoskeletal networks, but the roles of intermediate filaments in this process are poorly understood. We now report that nestin selectively facilitates phosphorylation of the lissencephaly-linked doublecortin (DCX) by cdk5/p35, but the phosphorylation of other cdk5 substrates is not affected. This substrate selectivity is based on preferential scaffolding of DCX, cdk5, and p35 by nestin. Additionally, we demonstrate a functional role for the DCX-nestin complex in neurons. We propose that nestin changes growth cone behavior by regulating intracellular kinase signaling in developing neurons. Full Article
an Calcineurin Inhibition Causes {alpha}2{delta}-1-Mediated Tonic Activation of Synaptic NMDA Receptors and Pain Hypersensitivity By www.jneurosci.org Published On :: 2020-05-06T09:30:22-07:00 Calcineurin inhibitors, such as tacrolimus (FK506) and cyclosporine, are widely used as standard immunosuppressants in organ transplantation recipients. However, these drugs can cause severe pain in patients, commonly referred to as calcineurin inhibitor-induced pain syndrome (CIPS). Although calcineurin inhibition increases NMDAR activity in the spinal cord, the underlying mechanism remains enigmatic. Using an animal model of CIPS, we found that systemic administration of FK506 in male and female mice significantly increased the amount of α2-1–GluN1 complexes in the spinal cord and the level of α2-1–bound GluN1 proteins in spinal synaptosomes. Treatment with FK506 significantly increased the frequency of mEPSCs and the amplitudes of monosynaptic EPSCs evoked from the dorsal root and puff NMDAR currents in spinal dorsal horn neurons. Inhibiting α2-1 with gabapentin or disrupting the α2-1–NMDAR interaction with α2-1Tat peptide completely reversed the effects of FK506. In α2-1 gene KO mice, treatment with FK506 failed to increase the frequency of NMDAR-mediated mEPSCs and the amplitudes of evoked EPSCs and puff NMDAR currents in spinal dorsal horn neurons. Furthermore, systemic administration of gabapentin or intrathecal injection of α2-1Tat peptide reversed thermal and mechanical hypersensitivity in FK506-treated mice. In addition, genetically deleting GluN1 in dorsal root ganglion neurons or α2-1 genetic KO similarly attenuated FK506-induced thermal and mechanical hypersensitivity. Together, our findings indicate that α2-1–bound NMDARs mediate calcineurin inhibitor-induced tonic activation of presynaptic and postsynaptic NMDARs at the spinal cord level and that presynaptic NMDARs play a prominent role in the development of CIPS. SIGNIFICANCE STATEMENT Calcineurin inhibitors are immunosuppressants used to prevent rejection of transplanted organs and tissues. However, these drugs can cause severe, unexplained pain. We showed that calcineurin inhibition enhances physical interaction between α2-1 and NMDARs and their synaptic trafficking in the spinal cord. α2-1 is essential for calcineurin inhibitor-induced aberrant activation of presynaptic and postsynaptic NMDARs in the spinal cord. Furthermore, inhibiting α2-1 or disrupting α2-1–NMDAR interaction reduces calcineurin inhibitor-induced pain hypersensitivity. Eliminating NMDARs in primary sensory neurons or α2-1 KO also attenuates calcineurin inhibitor-induced pain hypersensitivity. This new information extends our mechanistic understanding of the role of endogenous calcineurin in regulating synaptic plasticity and nociceptive transmission and suggests new strategies for treating this painful condition. Full Article
an M-Current Inhibition in Hippocampal Excitatory Neurons Triggers Intrinsic and Synaptic Homeostatic Responses at Different Temporal Scales By www.jneurosci.org Published On :: 2020-05-06T09:30:22-07:00 Persistent alterations in neuronal activity elicit homeostatic plastic changes in synaptic transmission and/or intrinsic excitability. However, it is unknown whether these homeostatic processes operate in concert or at different temporal scales to maintain network activity around a set-point value. Here we show that chronic neuronal hyperactivity, induced by M-channel inhibition, triggered intrinsic and synaptic homeostatic plasticity at different timescales in cultured hippocampal pyramidal neurons from mice of either sex. Homeostatic changes of intrinsic excitability occurred at a fast timescale (1–4 h) and depended on ongoing spiking activity. This fast intrinsic adaptation included plastic changes in the threshold current and a distal relocation of FGF14, a protein physically bridging Nav1.6 and Kv7.2 channels along the axon initial segment. In contrast, synaptic adaptations occurred at a slower timescale (~2 d) and involved decreases in miniature EPSC amplitude. To examine how these temporally distinct homeostatic responses influenced hippocampal network activity, we quantified the rate of spontaneous spiking measured by multielectrode arrays at extended timescales. M-Channel blockade triggered slow homeostatic renormalization of the mean firing rate (MFR), concomitantly accompanied by a slow synaptic adaptation. Thus, the fast intrinsic adaptation of excitatory neurons is not sufficient to account for the homeostatic normalization of the MFR. In striking contrast, homeostatic adaptations of intrinsic excitability and spontaneous MFR failed in hippocampal GABAergic inhibitory neurons, which remained hyperexcitable following chronic M-channel blockage. Our results indicate that a single perturbation such as M-channel inhibition triggers multiple homeostatic mechanisms that operate at different timescales to maintain network mean firing rate. SIGNIFICANCE STATEMENT Persistent alterations in synaptic input elicit homeostatic plastic changes in neuronal activity. Here we show that chronic neuronal hyperexcitability, induced by M-type potassium channel inhibition, triggered intrinsic and synaptic homeostatic plasticity at different timescales in hippocampal excitatory neurons. The data indicate that the fast adaptation of intrinsic excitability depends on ongoing spiking activity but is not sufficient to provide homeostasis of the mean firing rate. Our results show that a single perturbation such as M-channel inhibition can trigger multiple homeostatic processes that operate at different timescales to maintain network mean firing rate. Full Article
an Waste less food – and help end hunger By www.fao.org Published On :: Mon, 03 Jun 2013 00:00:00 GMT Wednesday 5 June marks World Environment Day and an opportunity for everyone to take action on the critical issue of food waste and losses. “Think. Eat. Save” is the theme, echoing the name of the campaign launched recently by FAO and UNEP, which encourages people to reduce their “foodprint” by making more informed choices. Every year 1.3 billion tonnes of food [...] Full Article
an Report: eradicate hunger and malnutrition By www.fao.org Published On :: Wed, 05 Jun 2013 01:00:00 GMT Eradicating hunger must be accompanied by strenuous efforts to end malnutrition and its devastating effects. That was a pivotal message at the launch of FAO’s key publication The State of Food and Agriculture, which this year focuses on Food systems for better nutrition. “FAO’s message is that we must strive for nothing less than the eradication of hunger and malnutrition,” said Director-General [...] Full Article
an Reduce your food waste and save money and our natural resources By www.fao.org Published On :: Wed, 18 Dec 2013 00:00:00 GMT Total food losses have been estimated at 1.3 billion tons per year, which represents roughly one-third of the world food production for human consumption. The economic value of food losses and waste amounts to $680 billion in industrialized countries and $310 billion in developing countries. In total, food loss and waste amount to one trillion dollars globally. Lost and wasted food [...] Full Article
an Download the free “Quinoa in the kitchen” book and try out new recipes! By www.fao.org Published On :: Wed, 08 Jan 2014 00:00:00 GMT Once known as “the gold of the Incas,” quinoa has been one of the world’s neglected crops but is currently becoming more and more popular. For centuries, quinoa remained a hidden treasure grown almost exclusively by indigenous communities in the Andean heights. Lately, quinoa has been growing in popularity with foodies and health-conscious consumers around the world. It was even [...] Full Article
an Learn how cash transfer programmes improve lives in sub-Saharan Africa and share the infographics By www.fao.org Published On :: Wed, 22 Jan 2014 00:00:00 GMT Did you know that cash transfer (CT) programmes in countries of the sub-Saharan Africa actually have a significant impact? In Malawi, these programmes helped families invest in agricultural equipment and livestock to produce their own food and reduce levels of negative coping strategies, like begging and school drop-outs. In Kenya, secondary school attendance rose by 9 percent and access to [...] Full Article
an Vegetable garden tips – for better homes and gardens By www.fao.org Published On :: Wed, 05 Feb 2014 00:00:00 GMT Enjoy a low-cost, healthy diet from your very own vegetable garden and get the chance to make money by selling your own products. Start your own vegetable garden to grow, prepare and eat your own delicious fruits and vegetables with these tips: Do your research: When you begin your own vegetable garden you should understand the type of soil you work [...] Full Article
an Learn how good food can improve your health By www.fao.org Published On :: Fri, 21 Feb 2014 00:00:00 GMT Have you ever wondered if you are getting adequate nutrients from the food you eat? It is a common misconception that malnutrition means not getting enough food. This is, however, incorrect! People who take in insufficient food can be malnourished, but also those who consume too much face the same risks. Malnutrition is defined as “An abnormal physiological condition caused by [...] Full Article
an Think about our forests – Plant a tree! By www.fao.org Published On :: Wed, 19 Mar 2014 00:00:00 GMT Forests and trees sustain and protect us, providing clean air and water, safeguarding biodiversity and acting as a buffer against climate change. For many people, they also offer food, shelter and employment. Here are ten facts about trees you might not be aware of: The world’s forests store 289 gigatonnes (Gt) of carbon in their biomass alone. Deforestation accounts for up to 20% [...] Full Article
an Jackie Chan set to defeat the world's worst enemy - Hunger By www.fao.org Published On :: Tue, 25 Mar 2014 00:00:00 GMT International Kungfu superstar and renowned Hollywood film actor Jackie Chan has joined FAO in the fight against hunger. In a recent visit to Ethiopia, Chan met with beneficiaries of the ‘Purchase from Africans for Africa’ (PAA) project as well as a South-South Cooperation Programme where he discussed with Chinese experts how they exchange technical knowledge with Ethiopian farmers to help them [...] Full Article
an 5 critical things we learned from the latest IPCC report on climate change By www.fao.org Published On :: Wed, 02 Apr 2014 00:00:00 GMT Today leading international experts on climate change, the IPCC, presented their latest report on the impacts of climate change on humanity, and what we can do about it. It’s a lengthy report, so we’ve shrunk it down to Oxfam's five key takeaways on climate change and hunger. 1. Climate change: the impacts on crops are worse than we thought Climate change has [...] Full Article
an 7 things you should know about FAO and the Post-2015 development agenda By www.fao.org Published On :: Thu, 03 Apr 2014 00:00:00 GMT As FAO launches dedicated webpages on post-2015, here are seven things to know about the process and how FAO is playing its part. 7 - Post-2015 development agenda - The name refers to the process through which Member States agree on a new global development framework to succeed the Millennium Development Goals (MDGs), eight goals that followed the UN Millennium Declaration [...] Full Article
an Plant a seed, grow a garden, change a life! By www.fao.org Published On :: Wed, 21 May 2014 00:00:00 GMT ‘‘—the first 1000 days are a critical window in a child’s development, but let’s not forget this child on day 1,001.’’ School nutrition programmes help to address the +1,001 day gap. Today, perceptions of school gardens are changing in response to increasingly urgent needs for greater food security, environmental protection, more secure livelihoods and better nutrition. School gardens have new multiple [...] Full Article
an Forests and trees – a source of shelter, food, energy and employment for millions By www.fao.org Published On :: Wed, 25 Jun 2014 00:00:00 GMT The challenge is to maintain and develop the socioeconomic benefits from forests while safeguarding the resource. FAO’s State of the World’s Forests (SOFO) 2014 argues that if the focus of data collection and policy is shifted from trees to people, forests can be sustainably managed to meet society’s growing demands. Read the most important findings: The formal forestry sector employs some 13.2 [...] Full Article
an Blue growth - unlocking the potential of seas and oceans By www.fao.org Published On :: Wed, 02 Jul 2014 00:00:00 GMT Today’s fisheries sector hosts a multibillion dollar industry that is a vital source of food and nutrition, employment, trade, economic wellbeing and recreation. What is blue growth? The concept of a "blue economy" came out of the 2012 Rio+20 Conference and emphasizes conservation and sustainable management, based on the premise that healthy ocean ecosystems are more productive and a must for sustainable [...] Full Article
an Understanding the true cost of malnutrition By www.fao.org Published On :: Wed, 16 Jul 2014 00:00:00 GMT Malnutrition isn’t just a problem of hunger in developing countries—it exists in all regions and across socio-economic classes. The effects on human health Besides undernutrition, malnutrition also includes micronutrient-deficient diets and overweight and obesity. Chronic malnutrition can have serious, often life-threatening, health consequences, especially for children. Undernutrition can lead to physical and cognitive stunting, and makes children more susceptible to infectious diseases. Micronutrient deficiencies [...] Full Article
an The Zero Hunger Challenge: Can we create a world where no one is hungry? By www.fao.org Published On :: Wed, 01 Oct 2014 00:00:00 GMT At the Rio+20 Conference on Sustainable Development in June 2012, UN Secretary-General Ban Ki-moon announced a new global challenge for world leaders and individuals from all sectors: create a world where no one is hungry. He emphasized that there is enough food in the world to feed our population, so the challenge comes from making sure that everyone has access [...] Full Article
an Mothers and children hold the key to better global nutrition By www.fao.org Published On :: Wed, 12 Nov 2014 00:00:00 GMT In the past 20 years, malnutrition in mothers and children has decreased by almost half. But despite this progress, child undernutrition is still the greatest nutrition-related health burden in the world. One of the biggest problems with child undernutrition is that it continues the cycle of stunting: stunted girls grow up to be stunted mothers, and stunted mothers are much [...] Full Article
an We can't live without forests By www.fao.org Published On :: Wed, 10 Dec 2014 00:00:00 GMT Forests are one of the Earth’s greatest natural resources. There is a reason why we often figuratively speak of ‘the tree of life’; forests are key to supporting life on Earth. Eight thousand years ago, half of the Earth’s land surface was covered by forests or wooded areas. Today, these areas represent less than one third. Forests are home to 80% [...] Full Article
an Aboard the EAF-Nansen By www.fao.org Published On :: Wed, 21 Jan 2015 00:00:00 GMT Join us virtually on the Dr Fridtjof Nansen, a marine research vessel, as it embarks on a month-long cruise departing from Cape Town, South Africa, to conduct scientific research in the deep seas of the Southeast Atlantic Fisheries Organization (SEAFO) convention area before arriving at Walvis Bay, Namibia. Since 1975, FAO and the Norwegian Agency for Development Cooperation have collaborated with [...] Full Article
an 6 incredible plants you might not have heard of By www.fao.org Published On :: Wed, 04 Feb 2015 00:00:00 GMT All over the world local varieties of fruit, vegetables and grain are grown. Many are seemingly forgotten or are underutilized despite having outstanding nutritional or taste qualities. Some have good commercial potential and could be an excellent cash crop for a smallscale or family farmers, aimed at the local, regional or international market. Here are six traditional crops and six facts [...] Full Article
an 7 actions to build a sustainable planet By www.fao.org Published On :: Wed, 01 Apr 2015 00:00:00 GMT As the clock ticks on the Millennium Development Goals (MDGs), the world community is deep in discussion over the successor global framework. Many current practices are damaging the planet’s ecosystems and the biodiversity essential for healthy food production. By 2050 an estimated additional 2 billion people will be living on Earth. This means food production must rise by 60%. From 8 MDGs [...] Full Article
an Milk Talk – The role of milk and dairy products in human nutrition By www.fao.org Published On :: Wed, 27 May 2015 00:00:00 GMT As part of a balanced diet, milk and dairy products can be an important source of dietary energy, protein and fat. But, the scientific evidence is massing up that regular consumption of large quantities of milk can be bad for your health, and campaigners are making noise about the environmental and international costs of large-scale intensive dairy farming. We put together [...] Full Article
an Whittling down instances of child labour in agriculture By www.fao.org Published On :: Wed, 10 Jun 2015 00:00:00 GMT “Children subjected to child labour need our support and action so they can enjoy their right to education and health and become productive farmers and workers as adults to escape poverty and hunger.” - José Graziano da Silva, FAO Director- General Child labour is not unique to a particular country, ethnicity, culture, or ideology. Today, there are about 100 million boys [...] Full Article
an Forests and people from around the globe – in pictures By www.fao.org Published On :: Wed, 02 Sep 2015 00:00:00 GMT The photos below were entries in the XIV World Forestry Congress ‘Forests and People’ photo contest. Take a tour with us around the world and learn interesting facts on forests and the socioeconomic benefits they provide to people around the world. Full Article
an Spotlight: Seven bee-friendly fruits and veggies By www.fao.org Published On :: Wed, 16 Sep 2015 00:00:00 GMT Bees pollinate a third of what we eat and play a vital role in sustaining the planet’s ecosystems. Some 84% of the crops grown for human consumption need bees or other insects to pollinate them to increase their yields and quality. Bee pollination not only results in a higher number of fruits, berries or seeds, it may also give a [...] Full Article
an Nature's superfood: 10 interesting facts on fish and nutrition By www.fao.org Published On :: Wed, 30 Sep 2015 00:00:00 GMT Fish plays an important role in fighting hunger and malnutrition and is the main source of animal protein in many developing countries. Seafood is not only a source of proteins and healthy long-chain omega-3 fats, but also an essential source of other nutrients like iodine, vitamin D and calcium, which are crucial to living a healthy life. Here are 10 interesting [...] Full Article
an Farming systems that ‘Save and Grow' – in pictures By www.fao.org Published On :: Wed, 20 Jan 2016 00:00:00 GMT Maize, rice and wheat are fundamental to world food security. We must safeguard production in the world’s grain belts and rice bowls, and increase yields in countries where production has to substantially improve as populations grow. Climate change adds new pressures on cereals, including rising temperatures and a higher incidence of pests, diseases, droughts and floods. FAO’s model of ecosystem-based agriculture, [...] Full Article
an On ecosystems and the services they provide – Let's talk facts By www.fao.org Published On :: Wed, 03 Feb 2016 00:00:00 GMT Ecosystem services make human life possible by, for example, providing nutritious food and clean water, regulating disease and climate, supporting the pollination of crops and soil formation, and providing recreational, cultural and spiritual benefits. In 2014, the value of ecosystem services was estimated at a staggering US$ 125 trillion. Ecosystem services, provided by biodiversity, are fundamental to food production and [...] Full Article
an Cooked or raw, Fe'i bananas are delicious and nutritious By www.fao.org Published On :: Wed, 17 Feb 2016 00:00:00 GMT When thinking of this fruit we love so much what is the image that first pops to mind? Perhaps a green or a yellow with a greenish tint energy food? Or maybe a banana packaged in a perfect shade of yellow? If that’s the case, then it is time to broaden that perspective. Say hello to the Fe’i banana! This traditional [...] Full Article
an 10 questions - How much do you know about forests and water? By www.fao.org Published On :: Wed, 16 Mar 2016 00:00:00 GMT . Full Article
an Climate is changing. Food and agriculture must too. By www.fao.org Published On :: Wed, 18 May 2016 00:00:00 GMT On the frontline of climate change, effects are real and measurable. As climate change evolves, food and agriculture need to follow suit. Rising temperatures, changes in rainfall, erratic weather patterns and the prevalence of pests and diseases resulting from climate change threaten agricultural productivity and therefore undermine global food security. Simultaneously, the world’s population is growing steadily and expected to reach [...] Full Article
an Inspiring the young generation to take action against climate change - in pictures By www.fao.org Published On :: Wed, 01 Jun 2016 00:00:00 GMT Climate change is what most of us perceive as the top global threat, and the dangers it poses affect present and future generations alike. How global warming is threatening the planet has been a theme in children’s books for all ages for some time. How everyone, especially today’s youth, can make a difference to the future of the world [...] Full Article
an The power of pollinators: why more bees means better food By www.fao.org Published On :: Wed, 24 Aug 2016 00:00:00 GMT What do cucumbers, mustard, almonds and alfalfa have in common? On the surface it appears to be very little. However, there is one thing they do share: They all owe their existence to the service of bees. There is more to the tiny striped helper than sweet honey and a painful sting. For millennia, it has carried out its service [...] Full Article
an Orphan crops can bring food security to millions of people By www.fao.org Published On :: Wed, 07 Sep 2016 00:00:00 GMT Smallholders and people living in rural areas in Africa grow a huge variety of edible plants other than rice, wheat or maize. These crops, including the African yam bean, have long been neglected although they represent an excellent alternative food supplement to most diets. Grown in pockets of tropical Central, West and East Africa, the African yam bean (Sphenostylis stenocarpa) [...] Full Article
an All about bananas: things you should know about the tropical fruit By www.fao.org Published On :: Wed, 26 Oct 2016 00:00:00 GMT Banana split, banana muffins, banana bread, banana pudding, banana pancakes – whether plain, cooked, baked or fried, bananas are among the most widely consumed fruits on the planet. However, how much do we really know about this most produced and exported fruit? Here are 11 interesting facts you should know about bananas: Based on written references discovered in Sanskrit around the year [...] Full Article
an Building greener cities: nine benefits of urban trees By www.fao.org Published On :: Wed, 30 Nov 2016 00:00:00 GMT For the first time in history, more than 50 percent of the world’s population now lives in towns and cities. By 2050, this number is expected to increase to 66 percent. The shift from rural to urban areas, mainly in Africa and Asia, is due to poverty and related socio-economic factors. For the most part, the rapid expansion of cities [...] Full Article
an Myth vs Reality: a look behind the scenes of cash transfers By www.fao.org Published On :: Wed, 04 Jan 2017 00:00:00 GMT Cash transfer programmes – regular money payments to poor households - aim to reduce poverty, promote sustainable livelihoods and increase production in the developing world. During the past decade, an increasing number of governments in sub-Saharan Africa have launched cash transfer programmes that target the most vulnerable groups, including subsistence farmers, people with disabilities and HIV/AIDS, as well as families [...] Full Article
an Empowering women to end hunger and poverty By www.fao.org Published On :: Wed, 01 Mar 2017 00:00:00 GMT In the varied and vital roles they play – as farmers, farm workers, entrepreneurs, caregivers and community leaders – rural women form the backbone of rural societies. Almost everywhere, they make crucial contributions to food production, food processing and marketing. Indeed, because women produce, process and prepare much of the food available, they are critical to the food security of [...] Full Article
an 10 questions – How much do you know about forests and energy? By www.fao.org Published On :: Wed, 15 Mar 2017 00:00:00 GMT . Full Article
an 7 reasons why we need to act now to #SaveOurOcean By www.fao.org Published On :: Wed, 29 Mar 2017 00:00:00 GMT The oceans have it all: from microscopic life to the largest animal that has ever lived on Earth, from the colourless to the shimmering, from the frozen to the boiling and from the sunlit to the mysterious dark of the deepest parts of the planet. Oceans are an essential component of the Earth's ecosystem -- a source of biodiversity, food, and [...] Full Article
an How much do you know about small island nations? By www.fao.org Published On :: Thu, 30 Mar 2017 00:00:00 GMT Over the past years, we have often been reminded that we must leave no one behind as we strive to cement our plans for a sustainable future. Most recent data indicate that many of the Small Island Developing States (SIDS) have achieved undernourishment levels of less than 5 percent. Good governance is perhaps the most essential factor in increasing food [...] Full Article
an 9 tips for reducing food waste and becoming a #ZeroHunger hero By www.fao.org Published On :: Fri, 26 May 2017 00:00:00 GMT Food waste has become a dangerous habit: buying more than we need at supermarkets, letting fruits and vegetables spoil at home or ordering more than we can eat at restaurants. Each year, about 1/3 of the food we produce globally is lost or wasted. In developing countries, a large part of this food (40%) is lost at the harvest or processing [...] Full Article
an Changing the future of migration by investing in food security and rural development By www.fao.org Published On :: Wed, 14 Jun 2017 00:00:00 GMT Migration has always existed. It has been a means to reunite with family, to find better jobs, to have a new experience or to start a better life. In 2015, the number of people migrating was up to 1 out of every 7 people in the world. When it is a choice, migration can be a good way to spread [...] Full Article