4,136 results match your criteria: "UNIVERSITY OF NORTH CAROLINA CHAPEL HILL[Affiliation]"

Mechanisms of peptide agonist dissociation and deactivation of adhesion G-protein-coupled receptors.

bioRxiv

September 2024

Department of Pharmacology and Computational Medicine Program, University of North Carolina - Chapel Hill, Chapel Hill, NC 27599, USA.

Adhesion G protein-coupled receptors (ADGRs) belong to Class B2 of GPCRs and are involved in a wide array of important physiological processes. ADGRs contain a GPCR autoproteolysis-inducing (GAIN) domain that is proximal to the receptor N-terminus and undergoes autoproteolysis during biosynthesis to generate two fragments: the N-terminal fragment (NTF) and C-terminal fragment (CTF). Dissociation of NTF reveals a tethered agonist to activate CTF of ADGRs for G protein signaling.

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Introduction: Limited evidence exists on the relationship between ultra-processed food (UPF) consumption and overweight/obesity amongst young children. This study aimed to assess UPF consumption, its socioeconomic correlates and its association with overweight/obesity amongst under-five children in Lebanon.

Materials And Methods: Data pertinent to children aged 6 months to 4.

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Article Synopsis
  • Hidradenitis suppurativa (HS) is a painful skin condition characterized by recurring abscesses and nodules in skin fold areas, and new treatment options have emerged, including biologics and immunomodulators.
  • Bimekizumab is a monoclonal antibody targeting inflammatory proteins interleukin-17A and interleukin-17F, already approved for other conditions and currently under FDA review for HS treatment.
  • The review will discuss bimekizumab's specific characteristics, including how it works, its safety and effectiveness based on recent clinical trials, and what these findings mean for clinical practice.
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Now in its 25th year, the Mutant Mouse Resource and Research Center (MMRRC) consortium continues to serve the United States and international biomedical scientific community as a public repository and distribution archive of laboratory mouse models of human disease for research. Supported by the National Institutes of Health (NIH), the MMRRC consists of 4 regionally distributed and dedicated vivaria, offices, and specialized laboratory facilities and an Informatics Coordination and Service Center (ICSC). The overarching purpose of the MMRRC is to facilitate groundbreaking biomedical research by offering an extensive repertoire of mutant mice that are essential for advancing the understanding of human physiology and disease.

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Background & Aims: The obesity epidemic is associated with increased colon cancer progression. As lipid droplets (LDs) fuel tumor growth, we aimed to determine the significance of diacyltransferases (diacylglycerol o-acyltransferases 1 and 2 [DGAT1/2]), responsible for LDs biogenesis, in obesity-mediated colonic tumorigenesis.

Methods: Human colon cancer samples, colon cancer cells, colonospheres, and Apc colon cancer mouse model on a high-fat diet were employed.

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Effect of a cash transfer intervention on memory decline and dementia probability in older adults in rural South Africa.

Proc Natl Acad Sci U S A

October 2024

South African Medical Research Council/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa.

Evidence on cash transfers as a population-level intervention to support healthy cognitive aging in low-income settings is sparse. We assessed the effect of a cash transfer intervention on cognitive aging outcomes in older South African adults. We leveraged the overlap in the sampling frames of a Phase 3 randomized cash transfer trial [HIV Prevention Trial Network (HPTN) 068, 2011-2015] and an aging cohort [Health and Aging in Africa: A Longitudinal Study of an INDEPTH Community (HAALSI), 2014-2022] in rural Mpumalanga Province, South Africa.

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We investigated the morphology and intracellular motility of mammary epithelial cell (MCF10DCIS.com) spheroids cultured in 3D artificial extracellular matrix under perfluorooctanoic acid (PFOA) exposure. Dynamic optical coherence tomography (OCT) was employed for real-time, non-invasive imaging of these spheroids longitudinally over 12 days under PFOA exposures up to 500 µM.

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Decoding machine learning in nursing research: A scoping review of effective algorithms.

J Nurs Scholarsh

January 2025

School of Nursing, College of Health and Human Services, University of North Carolina Wilmington, Wilmington, North Carolina, USA.

Introduction: The rapid evolution of artificial intelligence (AI) technology has revolutionized healthcare, particularly through the integration of AI into health information systems. This transformation has significantly impacted the roles of nurses and nurse practitioners, prompting extensive research to assess the effectiveness of AI-integrated systems. This scoping review focuses on machine learning (ML) used in nursing, specifically investigating ML algorithms, model evaluation methods, areas of focus related to nursing, and the most effective ML algorithms.

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Background: Patients with acute coronary syndrome without standard modifiable cardiovascular risk factors (SMuRFs; hypertension, smoking, dyslipidemia, diabetes) have not been well studied, with little known about their characteristics, quality of care, or outcomes. We sought to systematically analyze patients with ACS without SMuRFs, especially to evaluate the effectiveness of guideline-directed medical therapy for these patients.

Methods And Results: In the CCC-ACS (Improving Care for Cardiovascular Disease in China-Acute Coronary Syndrome) project (2014-2019), we examined the presence and absence of SMuRFs and features among 89 462 patients with initial acute coronary syndrome.

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  • The study investigated the link between elevated systolic blood pressure (SBP) and neurocognitive performance in adolescents, focusing on measures like auscultatory SBP and ambulatory SBP, along with cardiovascular health risk indicators.
  • It involved 365 adolescents, averaging 15.5 years old, from various academic medical centers in the U.S., analyzing their cognitive abilities like nonverbal IQ and attention, considering factors like maternal education.
  • Results showed that higher SBP corresponded to lower nonverbal IQ and verbal attention scores, indicating that even slight elevations in blood pressure can negatively affect adolescent cognitive functions, suggesting a need for further research on these implications for clinical care.
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Background: The Chronic Hypertension and Pregnancy Study demonstrated that a target blood pressure of <140/90 mm Hg during pregnancy is associated with improved perinatal outcomes. Outside of pregnancy, pharmacologic therapy for patients with diabetes and hypertension is adjusted to a target blood pressure of <130/80 mm Hg. During pregnancy, patients with both diabetes and chronic hypertension may also benefit from tighter control with a target blood pressure <130/80 mm Hg.

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  • Mirvetuximab soravtansine-gynx can cause a lung problem called interstitial lung disease (ILD).
  • This lung issue can show up as a specific pattern called organizing pneumonia in medical images.
  • Doctors often use steroids to help treat this lung problem caused by mirvetuximab, and there are important updates on how to dose the medicine if someone has mild lung symptoms.
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Purpose: To describe retention of an autism spectrum disorder (ASD) diagnosis from preschool to adolescence and the most common co-occurring diagnoses among children with ASD in preschool and adolescence. A second objective was to identify co-occurring diagnoses more likely to emerge between preschool and adolescence among children with ASD vs. another developmental or mental health diagnosis in preschool.

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Gestational and postnatal exposure to wildfire smoke and prolonged use of respiratory medications in early life.

Environ Res Health

December 2024

Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States of America.

Article Synopsis
  • The study investigates how exposure to wildfire smoke during pregnancy and early childhood impacts the long-term use of prescribed respiratory medications in children.
  • Using data from children born in western states between 2010 and 2014, researchers analyzed the correlation between smoke exposure and respiratory medication use.
  • Findings suggest increased risks for prolonged use of respiratory medications, especially linked to smoke exposure in the third trimester and the first 12 weeks after birth, with notable effects observed in male infants.
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  • The ethics of biobanking often neglects practical operations, focusing on the need for biobank resources to be used effectively for beneficial science, especially through networked biobanks.
  • A study involving 38 interviews with representatives of networked biobanks revealed that while funding, utilization, and sustainability are vital, networking does not inherently improve these areas as anticipated.
  • The findings stress that issues of funding, utilization, and sustainability should be recognized as ethical responsibilities in biobanking, necessitating dedicated efforts to develop governance models that uphold the stewardship obligations to all stakeholders.
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Background: Medications for opioid use disorder (MOUD) are the gold standard. However, significant barriers limit their use in the primary care setting, including limited knowledge of the medications and stigmatizing attitudes. In this study, we assess knowledge levels among primary care-aligned professionals (PCPs) currently in practice, and whether knowledge of MOUD is associated with stigma and treatment attitudes.

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Background: Food insecurity, a pervasive global issue exacerbated by the COVID-19 pandemic, has been linked to adverse mental health outcomes. However, the role of social capital in mitigating this relationship remains understudied, particularly in the Chinese context.

Aims: This study investigated the associations between food insecurity and psychological distress (depressive and anxiety symptoms) and examined the potential moderating effects of bonding and bridging social capital among Chinese adults in Shanghai.

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  • The study examines trends in heavy episodic drinking (HED) in Canada, focusing on age, period, and birth cohort differences by sex/gender and socioeconomic factors from 2000 to 2021, using data from over a million respondents.
  • Findings indicate that young adult men are significantly reducing their HED, while middle-aged women show an increase, particularly from 2000 to 2014, suggesting a shift in drinking patterns.
  • Higher socioeconomic status, particularly in income and education, is associated with lower HED, but recent trends show a convergence where women with higher education levels are experiencing increased HED in younger cohorts.
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Artificial intelligence (AI) applications to medical care are currently under investigation. We aimed to evaluate and compare the quality and accuracy of physician and chatbot responses to common clinical questions in gynecologic oncology. In this cross-sectional pilot study, ten questions about the knowledge and management of gynecologic cancers were selected.

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Multiple genetic variants of H1 and H3 influenza A viruses (IAVs) circulate concurrently in US swine farms. Understanding the spatial transmission patterns of IAVs among these farms is crucial for developing effective control strategies and mitigating the emergence of novel IAVs. In this study, we analysed 1909 IAV genomic sequences from 785 US swine farms, representing 33 farming systems across 12 states, primarily in the Midwest from 2004 to 2023.

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Objective: Goal setting is a behavior change technique associated with improved change in outcomes. Digital (eHealth, mHealth) behavior change interventions often prescribe all goals with no opportunity for participants to create and track their own; thus, little is known about the types of goals participants create for themselves and their impacts on behavioral outcomes. This analysis describes the goals created by participants using an optional personal goal-setting component and evaluates the association between participant goal creation and weight loss in an eHealth adult weight loss intervention.

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•Examines two types of area-level indicators commonly used in structural racism and health research.•Uses choropleth maps to assess the spatial patterning of the area-level indicators.•Offers methodological considerations for using area-level indicators.

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Objective: Elexacaftor/tezacaftor/ivacaftor (E/T/I) has provided life-changing pharmacotherapy for many people with cystic fibrosis (CF), but conflicting literature exists regarding the effect on mental health. While some reports suggest E/T/I may induce adverse psychiatric symptoms, others report improvements in mental health symptoms. To add to this growing body of knowledge, we retrospectively analyzed depression and anxiety symptoms before and after E/T/I initiation in adults with CF at a single large US CF center.

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