3 Neighborhood May Affect a Couple's Odds of Conceiving By www.medicinenet.com Published On :: Wed, 3 Aug 2022 00:00:00 PDT Title: Neighborhood May Affect a Couple's Odds of ConceivingCategory: Health NewsCreated: 8/3/2022 12:00:00 AMLast Editorial Review: 8/3/2022 12:00:00 AM Full Article
3 Crohn's, Colitis Tied to Higher-Risk Pregnancies By www.medicinenet.com Published On :: Tue, 9 Aug 2022 00:00:00 PDT Title: Crohn's, Colitis Tied to Higher-Risk PregnanciesCategory: Health NewsCreated: 8/9/2022 12:00:00 AMLast Editorial Review: 8/9/2022 12:00:00 AM Full Article
3 Another Study Shows COVID's Danger to Pregnant Women By www.medicinenet.com Published On :: Thu, 11 Aug 2022 00:00:00 PDT Title: Another Study Shows COVID's Danger to Pregnant WomenCategory: Health NewsCreated: 8/11/2022 12:00:00 AMLast Editorial Review: 8/11/2022 12:00:00 AM Full Article
3 'Stepped' Approach to Treating Diabetic Eye Disease May Be Best By www.medicinenet.com Published On :: Fri, 15 Jul 2022 00:00:00 PDT Title: 'Stepped' Approach to Treating Diabetic Eye Disease May Be BestCategory: Health NewsCreated: 7/15/2022 12:00:00 AMLast Editorial Review: 7/15/2022 12:00:00 AM Full Article
3 Bioengineered Pig Skin Is Turned Into Corneas, Restoring Patients' Sight By www.medicinenet.com Published On :: Fri, 12 Aug 2022 00:00:00 PDT Title: Bioengineered Pig Skin Is Turned Into Corneas, Restoring Patients' SightCategory: Health NewsCreated: 8/11/2022 12:00:00 AMLast Editorial Review: 8/12/2022 12:00:00 AM Full Article
3 AHA News: Obstacles Didn't Stop This Heart Defect Survivor From Competing on 'American Ninja Warrior By www.medicinenet.com Published On :: Mon, 15 Aug 2022 00:00:00 PDT Title: AHA News: Obstacles Didn't Stop This Heart Defect Survivor From Competing on 'American Ninja WarriorCategory: Health NewsCreated: 8/12/2022 12:00:00 AMLast Editorial Review: 8/15/2022 12:00:00 AM Full Article
3 AHA News: Newborn Was 'Very Sick Little Boy' Despite Several Normal Prenatal Ultrasounds By www.medicinenet.com Published On :: Thu, 25 Aug 2022 00:00:00 PDT Title: AHA News: Newborn Was 'Very Sick Little Boy' Despite Several Normal Prenatal UltrasoundsCategory: Health NewsCreated: 8/25/2022 12:00:00 AMLast Editorial Review: 8/25/2022 12:00:00 AM Full Article
3 Breakfast Might Be Good for a Child's Emotional Health, Too By www.medicinenet.com Published On :: Wed, 24 Aug 2022 00:00:00 PDT Title: Breakfast Might Be Good for a Child's Emotional Health, TooCategory: Health NewsCreated: 8/24/2022 12:00:00 AMLast Editorial Review: 8/24/2022 12:00:00 AM Full Article
3 Rapid Loss of Smell May Be an Early Sign of Alzheimer's By www.medicinenet.com Published On :: Fri, 29 Jul 2022 00:00:00 PDT Title: Rapid Loss of Smell May Be an Early Sign of Alzheimer'sCategory: Health NewsCreated: 7/29/2022 12:00:00 AMLast Editorial Review: 7/29/2022 12:00:00 AM Full Article
3 Diets Heavy in 'Ultra-Processed' Foods Could Harm the Brain By www.medicinenet.com Published On :: Fri, 29 Jul 2022 00:00:00 PDT Title: Diets Heavy in 'Ultra-Processed' Foods Could Harm the BrainCategory: Health NewsCreated: 7/28/2022 12:00:00 AMLast Editorial Review: 7/29/2022 12:00:00 AM Full Article
3 Rural Americans With Early Alzheimer's Find It Tough to See Specialists By www.medicinenet.com Published On :: Tue, 9 Aug 2022 00:00:00 PDT Title: Rural Americans With Early Alzheimer's Find It Tough to See SpecialistsCategory: Health NewsCreated: 8/9/2022 12:00:00 AMLast Editorial Review: 8/9/2022 12:00:00 AM Full Article
3 3 Big Pharmacy Chains Must Pay $650 Million to Ohio Counties for Role in Opioid Crisis By www.medicinenet.com Published On :: Thu, 18 Aug 2022 00:00:00 PDT Title: 3 Big Pharmacy Chains Must Pay $650 Million to Ohio Counties for Role in Opioid CrisisCategory: Health NewsCreated: 8/18/2022 12:00:00 AMLast Editorial Review: 8/18/2022 12:00:00 AM Full Article
3 Too Few Psychiatric Beds: Psychiatrists' Group Takes Aim at Ongoing Crisis By www.medicinenet.com Published On :: Thu, 18 Aug 2022 00:00:00 PDT Title: Too Few Psychiatric Beds: Psychiatrists' Group Takes Aim at Ongoing CrisisCategory: Health NewsCreated: 8/17/2022 12:00:00 AMLast Editorial Review: 8/18/2022 12:00:00 AM Full Article
3 Many Who Need Opioid OD Antidote the Most Can't Afford It By www.medicinenet.com Published On :: Mon, 22 Aug 2022 00:00:00 PDT Title: Many Who Need Opioid OD Antidote the Most Can't Afford ItCategory: Health NewsCreated: 8/22/2022 12:00:00 AMLast Editorial Review: 8/22/2022 12:00:00 AM Full Article
3 'News Addiction' Is Common and Can Harm Your Mental Health By www.medicinenet.com Published On :: Thu, 25 Aug 2022 00:00:00 PDT Title: 'News Addiction' Is Common and Can Harm Your Mental HealthCategory: Health NewsCreated: 8/24/2022 12:00:00 AMLast Editorial Review: 8/25/2022 12:00:00 AM Full Article
3 Brain-Eating Amoeba From River May Have Caused Child's Death By www.medicinenet.com Published On :: Fri, 19 Aug 2022 00:00:00 PDT Title: Brain-Eating Amoeba From River May Have Caused Child's DeathCategory: Health NewsCreated: 8/19/2022 12:00:00 AMLast Editorial Review: 8/19/2022 12:00:00 AM Full Article
3 Wendy's Pulls Lettuce Due to E. Coli Outbreak By www.medicinenet.com Published On :: Mon, 22 Aug 2022 00:00:00 PDT Title: Wendy's Pulls Lettuce Due to E. Coli OutbreakCategory: Health NewsCreated: 8/22/2022 12:00:00 AMLast Editorial Review: 8/22/2022 12:00:00 AM Full Article
3 84 People Now Sickened in E. Coli Outbreak Tied to Wendy's Restaurant Lettuce By www.medicinenet.com Published On :: Fri, 26 Aug 2022 00:00:00 PDT Title: 84 People Now Sickened in E. Coli Outbreak Tied to Wendy's Restaurant LettuceCategory: Health NewsCreated: 8/26/2022 12:00:00 AMLast Editorial Review: 8/26/2022 12:00:00 AM Full Article
3 What Is a Drop Set? A Beginner's Guide By www.medicinenet.com Published On :: Tue, 26 Jul 2022 00:00:00 PDT Title: What Is a Drop Set? A Beginner's GuideCategory: Health and LivingCreated: 7/26/2022 12:00:00 AMLast Editorial Review: 7/26/2022 12:00:00 AM Full Article
3 Here's How New Federal Legislation Might Cut Your Drug Costs By www.medicinenet.com Published On :: Mon, 15 Aug 2022 00:00:00 PDT Title: Here's How New Federal Legislation Might Cut Your Drug CostsCategory: Health NewsCreated: 8/12/2022 12:00:00 AMLast Editorial Review: 8/15/2022 12:00:00 AM Full Article
3 Here's How the Inflation Reduction Act Will Lower the Cost of Health Care By www.medicinenet.com Published On :: Wed, 17 Aug 2022 00:00:00 PDT Title: Here's How the Inflation Reduction Act Will Lower the Cost of Health CareCategory: Health NewsCreated: 8/17/2022 12:00:00 AMLast Editorial Review: 8/17/2022 12:00:00 AM Full Article
3 As Pandemic Eases, It's Boom Times for Cosmetic Surgeons By www.medicinenet.com Published On :: Wed, 24 Aug 2022 00:00:00 PDT Title: As Pandemic Eases, It's Boom Times for Cosmetic SurgeonsCategory: Health NewsCreated: 8/24/2022 12:00:00 AMLast Editorial Review: 8/24/2022 12:00:00 AM Full Article
3 Here's Why Men Should Take Probiotics By www.medicinenet.com Published On :: Wed, 27 Jul 2022 00:00:00 PDT Title: Here's Why Men Should Take ProbioticsCategory: Health and LivingCreated: 7/27/2022 12:00:00 AMLast Editorial Review: 7/27/2022 12:00:00 AM Full Article
3 Swimmer's Ear (External Otitis) By www.medicinenet.com Published On :: Wed, 29 Jun 2022 00:00:00 PDT Title: Swimmer's Ear (External Otitis)Category: Diseases and ConditionsCreated: 12/31/1997 12:00:00 AMLast Editorial Review: 6/29/2022 12:00:00 AM Full Article
3 Menopause Linked With Higher Alzheimer's Risk By www.medicinenet.com Published On :: Thu, 30 Jun 2022 00:00:00 PDT Title: Menopause Linked With Higher Alzheimer's RiskCategory: Health NewsCreated: 6/30/2022 12:00:00 AMLast Editorial Review: 6/30/2022 12:00:00 AM Full Article
3 What's the Key to Battling UTIs? By www.medicinenet.com Published On :: Fri, 15 Jul 2022 00:00:00 PDT Title: What's the Key to Battling UTIs?Category: Health NewsCreated: 7/14/2022 12:00:00 AMLast Editorial Review: 7/15/2022 12:00:00 AM Full Article
3 Kids With ADHD Have Differences in 'Neural Flexibility,' Brain Study Shows By www.medicinenet.com Published On :: Mon, 1 Aug 2022 00:00:00 PDT Title: Kids With ADHD Have Differences in 'Neural Flexibility,' Brain Study ShowsCategory: Health NewsCreated: 7/29/2022 12:00:00 AMLast Editorial Review: 8/1/2022 12:00:00 AM Full Article
3 Is It Parkinson's? These 10 Signs Could Tell By www.medicinenet.com Published On :: Fri, 19 Aug 2022 00:00:00 PDT Title: Is It Parkinson's? These 10 Signs Could TellCategory: Health NewsCreated: 8/19/2022 12:00:00 AMLast Editorial Review: 8/19/2022 12:00:00 AM Full Article
3 There's More MS in Northern Countries. Now, Researchers Find New Reason Why By www.medicinenet.com Published On :: Thu, 25 Aug 2022 00:00:00 PDT Title: There's More MS in Northern Countries. Now, Researchers Find New Reason WhyCategory: Health NewsCreated: 8/25/2022 12:00:00 AMLast Editorial Review: 8/25/2022 12:00:00 AM Full Article
3 Vaginal or C-Section, Method of Childbirth Won't Affect a Couple's Sex Life Later By www.medicinenet.com Published On :: Thu, 25 Aug 2022 00:00:00 PDT Title: Vaginal or C-Section, Method of Childbirth Won't Affect a Couple's Sex Life LaterCategory: Health NewsCreated: 8/24/2022 12:00:00 AMLast Editorial Review: 8/25/2022 12:00:00 AM Full Article
3 Being Social May Be Key to 'Sense of Purpose' as You Age By www.medicinenet.com Published On :: Tue, 12 Jul 2022 00:00:00 PDT Title: Being Social May Be Key to 'Sense of Purpose' as You AgeCategory: Health NewsCreated: 7/12/2022 12:00:00 AMLast Editorial Review: 7/12/2022 12:00:00 AM Full Article
3 'Virtual' Museum Visits Are Good Medicine for Seniors By www.medicinenet.com Published On :: Tue, 16 Aug 2022 00:00:00 PDT Title: 'Virtual' Museum Visits Are Good Medicine for SeniorsCategory: Health NewsCreated: 8/16/2022 12:00:00 AMLast Editorial Review: 8/16/2022 12:00:00 AM Full Article
3 AHA News: How You Feel About Aging Could Affect Health. Here's How to Keep the Right Attitude. By www.medicinenet.com Published On :: Fri, 19 Aug 2022 00:00:00 PDT Title: AHA News: How You Feel About Aging Could Affect Health. Here's How to Keep the Right Attitude.Category: Health NewsCreated: 8/19/2022 12:00:00 AMLast Editorial Review: 8/19/2022 12:00:00 AM Full Article
3 Get Moving! Any Sports Can Lower Seniors' Odds of Early Death By www.medicinenet.com Published On :: Fri, 26 Aug 2022 00:00:00 PDT Title: Get Moving! Any Sports Can Lower Seniors' Odds of Early DeathCategory: Health NewsCreated: 8/25/2022 12:00:00 AMLast Editorial Review: 8/26/2022 12:00:00 AM Full Article
3 Looking for Reliable Hay Fever Advice? It's Probably Not on YouTube By www.medicinenet.com Published On :: Tue, 16 Aug 2022 00:00:00 PDT Title: Looking for Reliable Hay Fever Advice? It's Probably Not on YouTubeCategory: Health NewsCreated: 8/16/2022 12:00:00 AMLast Editorial Review: 8/16/2022 12:00:00 AM Full Article
3 Kidneys' Resilience May Depend on Your Gender, Study Finds By www.medicinenet.com Published On :: Mon, 22 Aug 2022 00:00:00 PDT Title: Kidneys' Resilience May Depend on Your Gender, Study FindsCategory: Health NewsCreated: 8/22/2022 12:00:00 AMLast Editorial Review: 8/22/2022 12:00:00 AM Full Article
3 Australia's Current Flu Season Is Tough: Will America's Be the Same? By www.medicinenet.com Published On :: Fri, 5 Aug 2022 00:00:00 PDT Title: Australia's Current Flu Season Is Tough: Will America's Be the Same?Category: Health NewsCreated: 8/4/2022 12:00:00 AMLast Editorial Review: 8/5/2022 12:00:00 AM Full Article
3 Study Casts Doubt on 'Chemical Imbalance' Theory of Depression By www.medicinenet.com Published On :: Tue, 9 Aug 2022 00:00:00 PDT Title: Study Casts Doubt on 'Chemical Imbalance' Theory of DepressionCategory: Health NewsCreated: 8/9/2022 12:00:00 AMLast Editorial Review: 8/9/2022 12:00:00 AM Full Article
3 De novo genome assemblies of two cryptodiran turtles with ZZ/ZW and XX/XY sex chromosomes provide insights into patterns of genome reshuffling and uncover novel 3D genome folding in amniotes [RESEARCH] By genome.cshlp.org Published On :: 2024-10-29T06:46:07-07:00 Understanding the evolution of chromatin conformation among species is fundamental to elucidate the architecture and plasticity of genomes. Nonrandom interactions of linearly distant loci regulate gene function in species-specific patterns, affecting genome function, evolution, and, ultimately, speciation. Yet, data from nonmodel organisms are scarce. To capture the macroevolutionary diversity of vertebrate chromatin conformation, here we generate de novo genome assemblies for two cryptodiran (hidden-neck) turtles via Illumina sequencing, chromosome conformation capture, and RNA-seq: Apalone spinifera (ZZ/ZW, 2n = 66) and Staurotypus triporcatus (XX/XY, 2n = 54). We detected differences in the three-dimensional (3D) chromatin structure in turtles compared to other amniotes beyond the fusion/fission events detected in the linear genomes. Namely, whole-genome comparisons revealed distinct trends of chromosome rearrangements in turtles: (1) a low rate of genome reshuffling in Apalone (Trionychidae) whose karyotype is highly conserved when compared to chicken (likely ancestral for turtles), and (2) a moderate rate of fusions/fissions in Staurotypus (Kinosternidae) and Trachemys scripta (Emydidae). Furthermore, we identified a chromosome folding pattern that enables "centromere–telomere interactions" previously undetected in turtles. The combined turtle pattern of "centromere–telomere interactions" (discovered here) plus "centromere clustering" (previously reported in sauropsids) is novel for amniotes and it counters previous hypotheses about amniote 3D chromatin structure. We hypothesize that the divergent pattern found in turtles originated from an amniote ancestral state defined by a nuclear configuration with extensive associations among microchromosomes that were preserved upon the reshuffling of the linear genome. Full Article
3 Wonca Europe 2023 Definition of General Practice/Family Medicine: New Needs New Content By www.jabfm.org Published On :: 2024-10-25T09:26:14-07:00 Full Article
3 Primary Care Clinicians' Interest In, and Barriers To, Medication Abortion By www.jabfm.org Published On :: 2024-10-25T09:26:14-07:00 Purpose: Providing medication abortion in the primary care setting is a promising way to increase access to abortion, a threatened service in many States. This study aimed to characterize primary care clinicians’ interest in prescribing medication abortion, what barriers they face in adding this service, and what support they need. Methods: Data were collected from 162 practicing primary care clinicians in Minnesota using an online survey with closed- and open-ended response options. Data were analyzed using descriptive statistics, group comparison analyses, and content analysis for the open-ended questions. Results: Participants represented a diverse range of ages, years in practice, credentials, genders, and urban/rural practice settings, and held mixed knowledge and attitudes around medication abortion. All demographic groups surveyed expressed interest in prescribing medication abortion, with the strongest interest represented among younger respondents, women, and those practicing in urban settings. Clinicians who provide prenatal care or who already work with these medications in other contexts were more likely to want to add medication abortion to their practices. The most common barrier to providing medication abortion was a lack of knowledge about organizational policies and about the medications themselves. To empower clinicians to provide medication abortion, respondents voiced needing their health systems to build clear processes and wanting supportive networks of other clinicians for collaboration. Conclusions: Given the interest of primary care clinicians in providing medication abortion, health systems have a valuable opportunity to increase access. Full Article
3 DNAJA2 and Hero11 mediate similar conformational extension and aggregation suppression of TDP-43 [REPORT] By rnajournal.cshlp.org Published On :: 2024-10-16T07:18:13-07:00 Many RNA-binding proteins (RBPs) contain low-complexity domains (LCDs) with prion-like compositions. These long intrinsically disordered regions regulate their solubility, contributing to their physiological roles in RNA processing and organization. However, this also makes these RBPs prone to pathological misfolding and aggregation that are characteristic of neurodegenerative diseases. For example, TAR DNA-binding protein 43 (TDP-43) forms pathological aggregates associated with amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD). While molecular chaperones are well-known suppressors of these aberrant events, we recently reported that highly disordered, hydrophilic, and charged heat-resistant obscure (Hero) proteins may have similar effects. Specifically, Hero proteins can maintain the activity of other proteins from denaturing conditions in vitro, while their overexpression can suppress cellular aggregation and toxicity associated with aggregation-prone proteins. However, it is unclear how these protective effects are achieved. Here, we used single-molecule FRET to monitor the conformations of the aggregation-prone prion-like LCD of TDP-43. While we observed high conformational heterogeneity in wild-type LCD, the ALS-associated mutation A315T promoted collapsed conformations. In contrast, an Hsp40 chaperone, DNAJA2, and a Hero protein, Hero11, stabilized extended states of the LCD, consistent with their ability to suppress the aggregation of TDP-43. Our results link single-molecule effects on conformation to macro effects on bulk aggregation, where a Hero protein, like a chaperone, can maintain the conformational integrity of a client protein to prevent its aggregation. Full Article
3 Longitudinal validation of King's Sarcoidosis Questionnaire in a prospective cohort with mild sarcoidosis By beta.openres.ersjournals.com Published On :: 2024-11-11T01:50:25-08:00 Background Quality of life is impaired in patients with sarcoidosis. The King's Sarcoidosis Questionnaire (KSQ) is a brief questionnaire assessing health-related quality of life in patients with sarcoidosis, comprising subdomains of General Health Status (GHS), Lung, Medication, Skin and Eyes. The aim of this study was to enhance the validation of the KSQ, incorporating longitudinal validation and known-groups validity in a cohort with mild sarcoidosis. Methods The KSQ was linguistically validated according to guidelines. Patients with sarcoidosis completed KSQ and other questionnaires at baseline, after 2 weeks and at 12 months. Forced vital capacity (FVC) was measured. Concurrent validity, reliability and responsiveness were assessed. Results In patients (n=150), the KSQ had moderate to strong correlations with the Short Form-12 (Mental Component Summary), the King's Brief Interstitial Lung Disease questionnaire and the Fatigue Assessment Scale (r=0.30–0.70) and weak correlations with the Short Form-12 (Physical Component Summary) and FVC (r=0.01–0.29). The KSQ GHS and Lung domains were able to discriminate between groups of patients stratified according to fatigue, treatment and FVC. The KSQ had high internal consistency (Cronbach's α=0.73–0.90) and repeatability (interclass correlation coefficients 0.72–0.81). Correlations to comparable questionnaires at baseline were moderate or strong for the GHS, Lung and GHS–Lung subdomains and weak or moderate for FVC. The KSQ was responsive to changes over time. Conclusion This study strengthened the validation of the KSQ by introducing known-groups validity and assessments of responsiveness over 12 months in patients with mild sarcoidosis. Full Article
3 Reassessing Halm's clinical stability criteria in community-acquired pneumonia management By erj.ersjournals.com Published On :: 2024-11-07T00:35:55-08:00 Background Halm's clinical stability criteria have long guided antibiotic treatment and hospital discharge decisions for patients hospitalised with community-acquired pneumonia (CAP). Originally introduced in 1998, these criteria were established based on a relatively small and select patient population. Consequently, our study aims to reassess their applicability in the management of CAP in a contemporary real-world setting. Methods This cohort study included 2918 immunocompetent patients hospitalised with CAP from three hospitals in Denmark between 2017 and 2020. The primary outcome was time to achieve clinical stability as defined by Halm's criteria. Additionally, we examined recurrence of clinical instability and severe complications. Cumulative incidence function or Kaplan–Meier survival curves were used to analyse these outcomes, considering competing risks. Results The study population primarily comprised elderly individuals (median age 75 years) with significant comorbidities. The median time to clinical stability according to Halm's criteria was 4 days, with one-fifth experiencing recurrence of instability after early clinical response (stability within 3 days). Severe complications within 30 days mainly comprised mortality, with rates of 5.1% (64/1257) overall in those with early clinical response, 1.7% (18/1045) in the subgroup without do-not-resuscitate orders and 17.3% (276/1595) among the rest. Conclusion Halm's clinical stability criteria effectively classify CAP patients with different disease courses, yet achieving stability required more time in this ageing population with substantial comorbidities and more severe disease. Early clinical response indicates reduced risk of complications, especially in those without do-not-resuscitate orders. Full Article
3 Comparison of the CYP3A Selective Inhibitors CYP3cide, Clobetasol, and Azamulin for Their Potential to Distinguish CYP3A7 Activity in the Presence of CYP3A4/5 [Articles] By dmd.aspetjournals.org Published On :: 2024-10-16T09:02:03-07:00 The CYP3A7 enzyme accounts for ~50% of the total cytochrome P450 (P450) content in fetal and neonatal livers and is the predominant P450 involved in neonatal xenobiotic metabolism. Additionally, it is a key player in healthy birth outcomes through the oxidation of dehydroepiandrosterone (DHEA) and DHEA-sulfate. The amount of the other hepatic CYP3A isoforms, CYP3A4 and CYP3A5, expressed in neonates is low but highly variable, and therefore the activity of individual CYP3A isoforms is difficult to differentiate due to their functional similarities. Consequently, a better understanding of the contribution of CYP3A7 to drug metabolism is essential to identify the risk that drugs may pose to neonates and developing infants. To distinguish CYP3A7 activity from CYP3A4/5, we sought to further characterize the selectivity of the specific CYP3A inhibitors CYP3cide, clobetasol, and azamulin. We used three substrate probes, dibenzylfluorescein, luciferin-PPXE, and midazolam, to determine the IC50 and metabolism-dependent inhibition (MDI) properties of the CYP3A inhibitors. Probe selection had a significant effect on the IC50 values and P450 inactivation across all inhibitory compounds and enzymes. CYP3cide and azamulin were both identified as MDIs and were most specific for CYP3A4. Contrary to previous reports, we found that clobetasol propionate (CP) was not an MDI of CYP3A5 but was more selective for CYP3A5 over CYP3A4/7. We further investigated CYP3cide and CP’s ability to differentiate CYP3A7 activity in an equal mixture of recombinant CYP3A4, CYP3A5, and CYP3A7, and our results provide confidence of CYP3cide’s and CP’s ability to distinguish CYP3A7 activity in the presence of the other CYP3A isoforms. SIGNIFICANCE STATEMENT These findings provide valuable insight regarding in vitro testing conditions to investigate the metabolism of new drug candidates and help determine drug safety in neonates. The results presented here also clearly demonstrate the effect that probe selection may have on CYP3A cytochrome P450 inhibition studies. Full Article
3 Early Prediction and Impact Assessment of CYP3A4-Related Drug-Drug Interactions for Small-Molecule Anticancer Drugs Using Human-CYP3A4-Transgenic Mouse Models [Articles] By dmd.aspetjournals.org Published On :: 2024-10-16T09:02:03-07:00 Early detection of drug-drug interactions (DDIs) can facilitate timely drug development decisions, prevent unnecessary restrictions on patient enrollment, resulting in clinical study populations that are not representative of the indicated study population, and allow for appropriate dose adjustments to ensure safety in clinical trials. All of these factors contribute to a streamlined drug approval process and enhanced patient safety. Here we describe a new approach for early prediction of the magnitude of change in exposure for cytochrome P450 (P450) CYP3A4-related DDIs of small-molecule anticancer drugs based on the model-based extrapolation of human-CYP3A4-transgenic mice pharmacokinetics to humans. Victim drugs brigatinib and lorlatinib were evaluated with the new approach in combination with the perpetrator drugs itraconazole and rifampicin. Predictions of the magnitude of change in exposure deviated at most 0.99- to 1.31-fold from clinical trial results for inhibition with itraconazole, whereas exposure predictions for the induction with rifampicin were less accurate, with deviations of 0.22- to 0.48-fold. Results for the early prediction of DDIs and their clinical impact appear promising for CYP3A4 inhibition, but validation with more victim and perpetrator drugs is essential to evaluate the performance of the new method. SIGNIFICANCE STATEMENT The described method offers an alternative for the early detection and assessment of potential clinical impact of CYP3A4-related drug-drug interactions. The model was able to adequately describe the inhibition of CYP3A4 metabolism and the subsequent magnitude of change in exposure. However, it was unable to accurately predict the magnitude of change in exposure of victim drugs in combination with an inducer. Full Article
3 Inhibitory Actions of Potentiating Neuroactive Steroids in the Human {alpha}1{beta}3{gamma}2L {gamma}-Aminobutyric Acid Type A Receptor [Article] By molpharm.aspetjournals.org Published On :: 2024-10-17T05:12:59-07:00 The -aminobutyric acid type A (GABAA) receptor is modulated by a number of neuroactive steroids. Sulfated steroids and 3β-hydroxy steroids inhibit, while 3α-hydroxy steroids typically potentiate the receptor. Here, we have investigated inhibition of the α1β32L GABAA receptor by the endogenous neurosteroid 3α-hydroxy-5β-pregnan-20-one (3α5βP) and the synthetic neuroactive steroid 3α-hydroxy-5α-androstane-17β-carbonitrile (ACN). The receptors were expressed in Xenopus oocytes. All experiments were done using two-electrode voltage-clamp electrophysiology. In the presence of low concentrations of GABA, 3α5βP and ACN potentiate the GABAA receptor. To reveal inhibition, we conducted the experiments on receptors activated by the combination of a saturating concentration of GABA and propofol to fully activate the receptors and mask potentiation, or on mutant receptors in which potentiation is ablated. Under these conditions, both steroids inhibited the receptor with IC50s of ~13 μM and maximal inhibitory effects of 70–90%. Receptor inhibition by 3α5βP was sensitive to substitution of the α1 transmembrane domain (TM) 2-2' residue, previously shown to ablate inhibition by pregnenolone sulfate. However, results of coapplication studies and the apparent lack of state dependence suggest that pregnenolone sulfate and 3α5βP inhibit the GABAA receptor independently and through distinct mechanisms. Mutations to the neurosteroid binding sites in the α1 and β3 subunits statistically significantly, albeit weakly and incompletely, reduced inhibition by 3α5βP and ACN. SIGNIFICANCE STATEMENT The heteromeric GABAA receptor is inhibited by sulfated steroids and 3β-hydroxy steroids, while 3α-hydroxy steroids are considered to potentiate the receptor. We show here that 3α-hydroxy steroids have inhibitory effects on the α1β32L receptor, which are observed in specific experimental settings and are expected to manifest under different physiological conditions. Full Article
3 FP2020 and FP2030 Country Commitments: A Mixed Method Study of Adolescent and Youth Sexual and Reproductive Health Components By ghspjournal.org Published On :: 2024-10-29T12:28:39-07:00 ABSTRACTIntroduction:Family Planning 2020 (FP2020) was established in 2012 with the goal of expanding contraceptive access. By 2020, 46 countries had made commitments to FP2020. A sustained focus on adolescents and youth (AY) began in 2016. During the commitment formulation process, substantial support was offered to countries to develop AY commitments based on sound data, research evidence, and programmatic experience. This study assesses how country commitments under FP2020 and FP2030 have evolved over time with respect to improving attention to and focus on the needs of adolescents and youth sexual and reproductive health (AYSRH).Methods:We analyzed the content of FP2020 and FP2030 country commitments focusing on AY (aged 10–24 years) using a scoring guideline we developed to measure the AY commitments in terms of completeness, clarity, and quality.Results:This analysis shows that FP2030 commitments better articulate strategies and activities to reach AY with contraceptive information and services when compared to FP2020 commitments.Conclusion:FP2030 commitments are stronger in some areas on AYSRH, such as commitment to establish national or local policies, strategies, and guidance for AY programming, specifying the target audience of the AY commitment, and partnering with AY or youth-led organizations in commitments. However, more work remains to be done by countries to dedicate a budget for achieving AY objectives, including measurable targets for monitoring progress, identifying and addressing the root causes that impact AY access to and use of contraception, including child marriage and gender-based violence, and reducing financial barriers to access contraception. Full Article
3 “Je suis desole, ȷe parle francais”: How English Hegemony Undermines Efforts to Shift Power in Global Health By ghspjournal.org Published On :: 2024-10-29T12:28:39-07:00 Le texte complet de l’article est aussi disponible en français. Full Article
3 Family Planning, Reproductive Health, and Progress Toward the Sustainable Development Goals: Reflections and Directions on the 30th Anniversary of the International Conference on Population and Development By ghspjournal.org Published On :: 2024-10-29T12:28:39-07:00 Full Article