Publications by authors named "Isaacs N"

Research on gender and antimicrobial resistance (AMR) beyond women's biological susceptibility is limited. A gender and equity lens in AMR research is necessary to promote gender equality and support the effectiveness, uptake, and sustainability of real-world AMR solutions. We argue that it is an ethical and social justice imperative to include gender and related intersectional issues in AMR research and implementation.

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Adolescents continue to face challenges to their sexual and reproductive health (SRH) both locally and internationally. Digital technologies such as the Internet, text messaging, and social media are often viewed as valuable tools for disseminating information on SRH. Mobile health, also known as mHealth, is a medical and public health practise that uses these digital technologies to communicate information.

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Over the past decade, hospitals and health systems have increasingly adopted interventions to address the needs of patients with substance use disorders. The Opioid Use Disorder (OUD) Cascade of Care provides a framework for organizing and tracking patient health milestones over time and can assist health systems in identifying areas of intervention to maximize the impact of evidence-based services. However, detailed protocols are needed to guide health systems in how to operationalize the OUD Cascade and track outcomes using electronic health records.

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Background: Over the past decade, hospitals and health systems have increasingly adopted interventions to address the needs of patients with substance use disorders. The Opioid Use Disorder (OUD) Cascade of Care provides a framework for organizing and tracking patient health milestones over time, and can assist health systems in identifying areas of intervention to prevent overdose and maximize the impact of evidence-based services for patients with OUD. However, detailed protocols are needed to guide health systems in how to operationalize the OUD Cascade and track outcomes using their systems' electronic medical records (EMR).

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Background: There is limited research in South Africa that has analysed the experiences of child and youth victims of crime and sexual victimisation who accessed formal response services through the victim empowerment programme.

Objective: The primary aim of this article is to explore children and youth's experiences of accessing the Victim Empowerment Programmatic services, through the criminal justice system in South Africa. The focus of the article is on childrens' disclosure, reporting and social support.

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Availability of and access to services that promote sexual and reproductive health (SRH) amongst adolescent girls have become a global priority. Yet, while researchers have explored factors that influence the uptake of SRH services in low-and-middle income countries, the roles that "agency" and "hope" play in adolescent SRH is less understood. To study this, this mini review systematically reviewed the literature across three databases, , and , for the period of January 2012 to January 2022.

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This mini review explores the impact of the COVID-19 pandemic on adolescent sexual and reproductive health. We conducted a rapid review of the literature across three databases, with a particular focus on the African continent. Few studies have specifically focused on adolescents in Africa and this paper contributes to this paucity of research.

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Objective: Hypothalamic melanocortin 4 receptors (MC4R) are a key regulator of energy homeostasis. Brain-penetrant MC4R agonists have failed, as concentrations required to suppress food intake also increase blood pressure. However, peripherally located MC4R may also mediate metabolic benefits of MC4R activation.

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We evaluated data from 10 laboratories that analyzed water samples from 82 recreational water sites across the state of Michigan between 2016 and 2018. Water sample replicates were analyzed by experienced U.S.

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Background: High-risk pregnancy refers to a pregnancy that negatively affects the health of the mother, the baby, or both. High-risk pregnancy evokes a range of emotional and psychological experiences for the expectant mother, and can adversely affect both the mother and the baby's health. Medical research on high-risk pregnancy abounds, while women's emotional/psychological experiences are not sufficiently documented, and hence much less attention and/or programming is directed to support women with high risk pregnancies.

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Project Extension for Community Healthcare Outcomes (Project ECHO) offers an innovative and low-cost approach to enhancing the management of complex conditions among primary care providers. The NYC Health + Hospitals Buprenorphine ECHO (H + H ECHO) program offers primary care providers (PCPs) training and support in managing opioid use disorder (OUD). This exploratory study assessed the feasibility of a 16-session video conferencing platform led by Addiction Medicine experts in improving addiction knowledge, perceived self-efficacy, and buprenorphine prescribing among PCPs located in 17 publicly-funded ambulatory care clinics.

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There is interest in the application of rapid quantitative polymerase chain reaction (qPCR) methods for recreational freshwater quality monitoring of the fecal indicator bacteria Escherichia coli (E. coli). In this study we determined the performance of 21 laboratories in meeting proposed, standardized data quality acceptance (QA) criteria and the variability of target gene copy estimates from these laboratories in analyses of 18 shared surface water samples by a draft qPCR method developed by the U.

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There is growing interest in the application of rapid quantitative polymerase chain reaction (qPCR) and other PCR-based methods for recreational water quality monitoring and management programs. This interest has strengthened given the publication of U.S.

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Gut-derived serotonin (5-HT) is released from enterochromaffin (EC) cells in response to nutrient cues, and acts to slow gastric emptying and modulate gastric motility. Rodent studies also evidence a role for gut-derived 5-HT in the control of hepatic glucose production, lipolysis and thermogenesis, and in mediating diet-induced obesity. EC cell number and 5-HT content is increased in the small intestine of obese rodents and human, however, it is unknown whether EC cells respond directly to glucose in humans, and whether their capacity to release 5-HT is perturbed in obesity.

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Background/objectives: Evidence from animal studies highlights an important role for serotonin (5-HT), derived from gut enterochromaffin (EC) cells, in regulating hepatic glucose production, lipolysis and thermogenesis, and promoting obesity and dysglycemia. Evidence in humans is limited, although elevated plasma 5-HT concentrations are linked to obesity.

Subjects/methods: We assessed (i) plasma 5-HT concentrations before and during intraduodenal glucose infusion (4 kcal/min for 30 min) in non-diabetic obese (BMI 44 ± 4 kg/m, N = 14) and control (BMI 24 ± 1 kg/m, N = 10) subjects, (ii) functional activation of duodenal EC cells (immunodetection of phospho-extracellular related-kinase, pERK) in response to glucose, and in separate subjects, (iii) expression of tryptophan hydroxylase-1 (TPH1) in duodenum and colon (N = 39), and (iv) 5-HT content in primary EC cells from these regions (N = 85).

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Background And Aims: The small intestinal free fatty acid (FFA) sensors, FFA receptor 1 (FFAR1), FFAR4, G-protein receptor 119 (GPR119) and cluster of differentiation-36 (CD36), mediate the fat-induced release of gastrointestinal (GI) hormones. We investigated whether expression of duodenal FFA sensors in humans was (i) altered by intraduodenal (ID) lipid infusion, (ii) disordered in overweight or obese individuals, (iii) related to lipid-induced GI hormone secretion or (iv) affected by habitual dietary patterns.

Methods: Endoscopic duodenal biopsies were collected from 20 lean (body mass index (BMI): 22±1 kg m), 18 overweight (BMI: 27±1 kg m) and 19 obese (BMI: 35±1 kg m) participants at baseline, and following a 30 min ID Intralipid infusion (2 kcal min); FFA sensor expression was quantified by reverse transcription-PCR.

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Background: Vascular insufficiency has been reported to be a cause of normal tension glaucoma (NTG). The aim of this study was to compare ocular perfusion pressure (OPP) and ophthalmic artery flow (OAF) between patients with NTG and those without glaucoma.

Methods: We considered one eye each from 31 NTG and 15 non-glaucoma control patients.

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It was just over a century ago that W. L. Bragg published a paper describing the first crystal structures to be determined using X-ray diffraction data.

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Background & Aims: Free fatty acids (FFAs) and their derivatives are detected by G-protein coupled receptors (GPRs) on enteroendocrine cells, with specific transporters on enterocytes. It is unknown whether acute fat exposure affects FFA sensors/transporters, and whether this relates to hormone secretion and habitual fat intake.

Methods: We studied 20 healthy participants (10M, 10F; BMI: 22 ± 1 kg/m; age: 28 ± 2 years), after an overnight fast, on 2 separate days.

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Methicillin-resistant Staphylococcus aureus (MRSA) are a threat to human health worldwide, and although detected at marine beaches, they have been largely unstudied at freshwater beaches. Genes indicating S. aureus (SA; femA) and methicillin resistance (mecA) were detected at 11 and 12 of 13 US Great Lakes beaches and in 18% or 27% of 287 recreational water samples, respectively.

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Fatty acids (FAs) stimulate the secretion of gastrointestinal hormones, including cholecystokinin (CCK) and glucagon like peptide-1 (GLP-1), which suppress energy intake. In obesity, gastrointestinal responses to FAs are attenuated. Recent studies have identified a key role for the FA-sensing receptors cluster of differentiation (CD)36, G protein-coupled receptor (GPR)40, GPR120, and GPR119 in mediating gastrointestinal hormone secretion.

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Understanding of factors that influence Escherichia coli (EC) and enterococci (ENT) concentrations, pathogen occurrence, and microbial sources at Great Lakes beaches comes largely from individual beach studies. Using 12 representative beaches, we tested enrichment cultures from 273 beach water and 22 tributary samples for EC, ENT, and genes indicating the bacterial pathogens Shiga-toxin producing E. coli (STEC), Shigella spp.

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Aim: Neuropeptide W (NPW) is an endogenous ligand for the receptors GPR7 and GPR8 and is involved in central regulation of energy homeostasis. NPW in the periphery is found in gastric gastrin (G) cells. In the stomach, energy intake is influenced by vagal afferent signals, so we aimed to determine the effect of NPW on mechanosensitive gastric vagal afferents under different feeding conditions.

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