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

Background: Neonates undergoing cardiac surgery require fibrinogen replacement to restore hemostasis after cardiopulmonary bypass (CPB). Cryoprecipitate is often the first-line treatment, but recent studies demonstrate that fibrinogen concentrate (RiaSTAP; CSL Behring) may be acceptable in this population. This investigator-initiated, randomized trial compares cryoprecipitate to fibrinogen concentrate in neonates undergoing cardiac surgery (ClinicalTrials.

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Background: Warfarin is the only approved anticoagulant for antithrombotic treatment in patients with mechanical prosthetic heart valves (MPHV). However, dosing warfarin is challenging due to its narrow therapeutic window and highly variable clinical outcomes. Both low and high doses of warfarin can lead to thrombotic and bleeding events, respectively, with these complications being more severe in individuals with sensitive genetic polymorphisms.

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Closed-Loop Transcranial Alternating Current Stimulation for the Treatment of Major Depressive Disorder: An Open-Label Pilot Study.

Am J Psychiatry

September 2024

Department of Psychiatry, University of North Carolina Chapel Hill, N.C. (Schwippel, Pupillo, Feldman, Rubinow, Frohlich); Carolina Center for Neurostimulation, University of North Carolina, Chapel Hill, N.C. (Schwippel, Pupillo, Feldman, Frohlich); Electromedical Products International, Inc., Mineral Wells, Tex. (Townsend); Pulvinar Neuro, LLC., Durham, N.C. (Townsend, Walker).

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Purpose: Structural racism (SR) is a potential driver of health disparities, but research quantifying its impacts on cancer outcomes has been limited. We aimed to develop a multidimensional county-level SR measure and to examine the association of SR with breast cancer (BC) treatment delays among Black and White patients.

Methods: The cohort included 32,095 individuals from the North Carolina Central Cancer Registry with stage I to III BC diagnosed between 2004 and 2017 and linked to multipayer insurance claims from the Cancer Information and Population Health Resource.

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Hurricane Irma Linked to Coral Skeletal Density Shifts on the Florida Keys Reef Tract.

Integr Comp Biol

October 2024

Department of Earth Marine and Environmental Science, University of North Carolina Chapel Hill, Chapel Hill, NC 27514, USA.

Coral reefs are at risk due to various global and local anthropogenic stressors that impact the health of reef ecosystems worldwide. The most recent climate models predict that climate change will increase the frequency and intensity of tropical storms. This increased storm occurrence and strength will likely compromise coral reef structures and habitats for reef-dwelling organisms, including across the Florida Keys Reef Tract (FKRT), the most extensive tropical reef system along the US coast.

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Background: Social isolation and social connectedness are health determinants and aspects of social well-being with strong associations with psychological distress. This study evaluated relationships among social isolation, social connectedness, and psychological distress (i.e.

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Temperature can impact every reaction essential to a cell. For organisms that cannot regulate their own temperature, adapting to temperatures that fluctuate unpredictably and on variable timescales is a major challenge. Extremes in the magnitude and frequency of temperature changes are increasing across the planet, raising questions as to how the biosphere will respond.

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How adolescents learn to build social bonds: A developmental computational account of social explore-exploit decision-making.

Dev Cogn Neurosci

October 2024

Department of Psychology and Neuroscience, University of North Carolina Chapel Hill, 235 E. Cameron Avenue, Chapel Hill, NC 27599-3270, United States.

Building social bonds is a critical task of adolescence that affords opportunities for learning, identity formation, and social support. Failing to develop close relationships in adolescence hinders adult interpersonal functioning and contributes to problems such as loneliness and depression. During adolescence, increased reward sensitivity and greater social flexibility both contribute to healthy social development, yet we lack a clear theory of how these processes interact to support social functioning.

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Article Synopsis
  • The study investigated the accuracy of HIV point-of-care testing among African women using various contraceptive methods, focusing on the occurrence of true and false positive results.
  • Out of 48,234 visits by 7,730 women, true positive results were found in only 0.9% of cases, while false positives occurred in 0.2%, necessitating additional confirmatory testing.
  • The findings emphasize the need for confirmatory tests, as not all HIV infections presented typical laboratory results, particularly in populations with low HIV prevalence and repeat testing.
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Introduction: Disorders of gut-brain interaction (DGBI) are symptom-based disorders categorized by anatomic location but have high overlap and heterogeneity. Viewing DGBI symptoms on a spectrum (i.e.

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Background: Vulnerable populations across the United States are frequently exposed to extreme heat, which is becoming more intense due to a combination of climate change and urban-induced warming. Extreme heat can be particularly detrimental to the health and well-being of older citizens when it is combined with ozone. Although population-based studies have demonstrated associations between ozone, extreme heat, and human health, few studies focused on the role of social and behavioral factors that increase indoor risk and exposure among older adults.

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Ankyloglossia refers to a congenitally tight lingual frenulum that limits the motion of the tongue. Whether the release of a tight lingual frenulum in neonates improves breastfeeding is not clear. Because many of the symptoms of ankyloglossia overlap those of other breastfeeding difficulties, a team partnership is necessary.

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The hormonal changes in women influence creatine dynamics, emphasizing its potential importance during menstruation, pregnancy, postpartum, menopause, and postmenopause. Yet, limited research explores creatine's impact on female reproductive health at the population level. Our study investigated the relationship between dietary creatine intake and reproductive health indices in US women using data from the 2017-2020 National Health and Nutrition Examination Survey (NHANES).

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Household Food Sourcing Patterns and Their Associations With Food Insecurity in Appalachian Ohio.

J Acad Nutr Diet

January 2025

Department of Nutritional Sciences, College of Public Health, University of Michigan, Ann Arbor, Michigan. Electronic address:

Article Synopsis
  • Households facing food insecurity often adopt various dynamic strategies for sourcing food, especially in rural areas, a topic that lacks comprehensive research.
  • The study aimed to analyze food sourcing patterns and their relation to food insecurity in rural Appalachian Ohio during the COVID-19 pandemic, collecting survey data from 663 households over multiple waves in 2020-2021.
  • Results identified two primary food sourcing patterns: one emphasizing convenience stores and charitable sources, and the other focusing on supermarkets and farmers markets, revealing that food-insecure households preferred the first pattern more than food-secure households.
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Simulating stochastic systems with feedback control is challenging due to the complex interplay between the system's dynamics and the feedback-dependent control protocols. We present a single-step-trajectory probability analysis to time-dependent stochastic systems. Based on this analysis, we revisit several time-dependent kinetic Monte Carlo (KMC) algorithms designed for systems under open-loop-control protocols.

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What Is the Level of Nursing Informatics Competency of ChatGPT?

Stud Health Technol Inform

July 2024

Joint Biomedical Engineering Department, School of Medicine University of North Carolina Chapel Hill, Chapel Hill, NC, USA.

Nurses must excel in using Artificial Intelligence (AI) - applied hospital systems, making their informatics competency crucial. ChatGPT has been trained with extensive amounts of informatics- and technology-related health data and has gained popularity. Nurses could have the opportunity to enhance their informatics competency through the knowledge generated by ChatGPT.

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Fetal biophysical predictors of pulmonary hypertension severity, management, and treatment in infants born with congenital diaphragmatic hernia.

Am J Surg

October 2024

University of North Carolina Chapel Hill School of Medicine, Chapel Hill, NC, USA; University of North Carolina, Department of Surgery, Division of Pediatric Surgery, Chapel Hill, NC, USA. Electronic address:

Background: Pulmonary hypertension (PHTN) causes significant morbidity and mortality in patients with congenital diaphragmatic hernia (CDH). Currently, there is no routinely obtained prenatal prognostic marker to reliably predict postnatal CDH-associated PHTN severity.

Methods: The CDH Study Group (CDHSG) registry was queried for infants born from 2015 to 2021 with a graded (1-4) PHTN diagnosis.

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Tumor-homing neural stem cell (NSC) therapy is emerging as a promising treatment for aggressive cancers of the brain. Despite their success, developing tumor-homing NSC therapy therapies that maintain durable tumor suppression remains a challenge. Herein, we report a synergistic combination regimen where the novel small molecule TR-107 augments NSC-tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) therapy (hiNeuroS-TRAIL) in models of the incurable brain cancer glioblastoma (GBM) .

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Idiographic measurement models such as p-technique and dynamic factor analysis (DFA) assess latent constructs at the individual level. These person-specific methods may provide more accurate models than models obtained from aggregated data when individuals are heterogeneous in their processes. Developing clustering methods for the grouping of individuals with similar measurement models would enable researchers to identify if measurement model subtypes exist across individuals as well as assess if the different models correspond to the same latent concept or not.

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Depleted Housing Elicits Cardiopulmonary Dysfunction After a Single Flaming Eucalyptus Wildfire Smoke Exposure in a Sex-Specific Manner in ApoE Knockout Mice.

Cardiovasc Toxicol

September 2024

Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, United States Environmental Protection Agency, 109 T.W. Alexander Dr., Research Triangle Park, NC, 27711, USA.

Although it is well established that wildfire smoke exposure can increase cardiovascular morbidity and mortality, the combined effects of non-chemical stressors and wildfire smoke remains understudied. Housing is a non-chemical stressor that is a major determinant of cardiovascular health, however, disparities in neighborhood and social status have exacerbated the cardiovascular health gaps within the United States. Further, pre-existing cardiovascular morbidities, such as atherosclerosis, can worsen the response to wildfire smoke exposures.

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For decades, the standard neoadjuvant therapy regimen for locally advanced rectal cancer consisted of chemoradiation, surgical resection, and consideration of adjuvant systemic therapy. Additional data have emerged suggesting neoadjuvant systemic therapy as a reasonable alternative to chemoradiation in selected patients. In addition, a total neoadjuvant therapy approach integrating both chemotherapy and chemoradiation results in superior cancer outcomes and the potential for consideration of nonoperative management in patients with a clinical complete response.

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Background: Sapovirus is an important cause of acute gastroenteritis in childhood. While vaccines against sapovirus may reduce gastroenteritis burden, a major challenge to their development is a lack of information about natural immunity.

Methods: We measured sapovirus-specific IgG in serum collected, between 2017 and 2020, of mothers soon after delivery and at 6 time points in Nicaraguan children until 3 years of age (n=112 dyads) using virus-like particles representing three sapovirus genotypes (GI.

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Predicting protein-peptide interactions is crucial for understanding peptide binding processes and designing peptide drugs. However, traditional computational modeling approaches face challenges in accurately predicting peptide-protein binding structures due to the slow dynamics and high flexibility of the peptides. Here, we introduce a new workflow termed "PepBinding" for predicting peptide binding structures, which combines peptide docking, all-atom enhanced sampling simulations using the Peptide Gaussian accelerated Molecular Dynamics (Pep-GaMD) method, and structural clustering.

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