25,435 results match your criteria: "University of California - Los Angeles.[Affiliation]"

This systematic review assessed the prevalence of transmitted and acquired HIV drug resistance (HIVDR) and the associated risk factors in Mozambique. A search of the PubMed, Cochrane, B-On, and Scopus databases up to December 2023 was conducted and included 11 studies with 1118 HIV-1 pol sequences. Drug resistance mutations (DRMs) to NNRTIs were found in 13% of the drug-naive individuals and 31% of those on ART, while NRTI resistance occurred in 5% and 10%, respectively.

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Prenatal Breastfeeding Intention Is Consistently Associated with Breastfeeding Duration Among WIC-Participating Women.

Nutrients

December 2024

Division of Research and Evaluation, Public Health Foundation Enterprises (PHFE) WIC, a Program of Heluna Health, City of Industry, CA 91746, USA.

Background/objective: The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) provides breastfeeding support to participating women in low-income households. This study aimed to determine the relationships between prenatal maternal and household characteristics and breastfeeding duration, as well as whether these characteristics modify associations of prenatal breastfeeding intention with breastfeeding duration.

Methods: This is a prospective cohort study of pregnant respondents to Los Angeles County (LAC), California, WIC surveys conducted between 2005 and 2020 (n = 1014).

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: Urinary tract infections (UTIs) are among the most prevalent bacterial infections. With many patients turning to the Internet as a health resource, this study seeks to understand public engagement with online resources concerning recurrent UTIs (rUTIs), assess their reliability, and identify common questions/concerns about rUTIs. : Social media analysis tool BuzzSumo was used to calculate online engagement (likes, shares, comments, views) with information on rUTIs.

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Advances in Organoid Research and Developmental Engineering.

Bioengineering (Basel)

December 2024

Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA.

Over the last decade, organoid research has emerged as a transformative field in biomedical science, offering unparalleled opportunities in disease modeling, pharmacological testing, and tissue engineering [...

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Image-guided mouse irradiation is essential to understand interventions involving radiation prior to human studies. Our objective is to employ Swin UNEt TRansformers (Swin UNETR) to segment native micro-CT and contrast-enhanced micro-CT scans and benchmark the results against 3D no-new-Net (nnU-Net). Swin UNETR reformulates mouse organ segmentation as a sequence-to-sequence prediction task using a hierarchical Swin Transformer encoder to extract features at five resolution levels, and it connects to a Fully Convolutional Neural Network (FCNN)-based decoder via skip connections.

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Violence against teachers has received increasing attention worldwide, with high rates of verbal, threatening, physical, and property violence in schools. Teacher-directed violence contributes to poor mental and physical health, high rates of turnover, and diminished student achievement. Despite these findings, there is a dearth of research on violence experienced by paraprofessionals who play key roles in supporting students with the greatest learning and behavioral needs in schools.

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Postoperative imaging of musculoskeletal tumors poses a significant diagnostic challenge for radiologists. The complexity arises from the need to differentiate between expected postoperative changes, potential complications, and local recurrence. The choice of imaging modality depends on the type of primary tumor.

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Action video games foster competitive environments that demand rapid spatial navigation and decision-making. Action video gamers often exhibit faster response times and slightly improved accuracy in vision-based sensorimotor tasks. However, the underlying functional and structural changes in the two visual streams of the brain that may be contributing to these cognitive improvements have been unclear.

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Stimulant use disorder poses substantial challenges to the health and well-being of people with HIV, contributing to increased HIV transmission risk and poor clinical outcomes. This article highlights the cultural significance of stimulant use, its epidemiology, and the latest evidencebased interventions for stimulant use disorder among individuals with HIV. Contingency management has emerged as the most effective treatment, with harm-reduction approaches serving as vital tools for improving the health of individuals unable or unwilling to achieve abstinence.

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Introduction: Female gastroenterologists comprise 19% of the gastroenterology (GI) workforce, despite females making up 30% of GI fellows and over 50% of medical students in the USA. Barriers to pursuing GI fellowship have not been studied at the resident level. We aimed to determine multiple barriers that may prevent internal medicine (IM) residents from pursuing GI fellowship.

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Background: Lebrikizumab monotherapy significantly improved signs and symptoms in patients with moderate-to-severe atopic dermatitis (AD) in phase 3 Advocate1 and ADvocate2 studies.

Objective: To evaluate improvements in patient-reported symptoms and quality-of-life (QoL) measures by Eczema Area and Severity Index (EASI) response categories using pooled Advocate1 and ADvocate2 data (post hoc analysis).

Methods: In the 52-week (W) (16-W induction + 36-W maintenance) double-blind, placebo-controlled ADvocate1 and ADvocate2 studies, patients were randomized (2:1) to receive subcutaneous lebrikizumab 250 mg or placebo every 2 weeks.

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Trends in use of tobacco and cannabis across different alcohol consumption levels in the United States, 2010-19.

Alcohol Alcohol

November 2024

Center for Value-Based Care Research, Cleveland Clinic, 9500 Euclid Ave, Mail Code G10, Cleveland, OH 44195.

Aims: People often drink alcohol and use other substances concurrently, increasing the risk of adverse health outcomes. Our aims were to: (i) assess temporal trends in tobacco and/or cannabis use by varying alcohol consumption levels and (ii) identify associated factors of polysubstance use in high-risk alcohol users.

Methods: We conducted a repeated cross-sectional study combining 2010-19 U.

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In this multi-center sinonasal malignancies (SNM) cohort, the Sino-nasal Outcome Test has a correlation with the University of Washington Quality of Life (UWQOL) for assessing QOL. The use of both instruments remains recommended to provide complete and complementary information. Future design of an easy-to-use tool specific to SNM is needed to encompass all aspects of QOL.

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Primary myelofibrosis (PMF) is an uncommon chronic myeloproliferative disorder that is commonly associated with Janus kinase 2 (JAK-2), calreticulin (CALR), or thrombopoietin receptor (MPL) mutations. Pre-fibrotic PMF (also known as pre-PMF or early PMF) is a subtype of PMF that is defined by a lower grade of fibrosis. In this report, we present a rare case of warm autoimmune hemolytic anemia (wAIHA) associated with pre-PMF.

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Introduction: Despite progress in the representation of women in the medical profession, substantial gender disparities persist in leadership roles, particularly in clinical trials. Clinical trials are crucial to evidence-based medicine, offering visibility, career advancement, and future funding opportunities for principal investigators (PIs). However, women remain underrepresented in these roles, especially in genetics.

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Objective: Metastatic breast cancer (MBC) is associated with burdensome side effects, including cognitive changes that require ongoing monitoring. Cognitive ecological momentary assessments (EMAs) allow for assessment of individual cognitive functioning in natural environments and can be administered via smartphones. Accordingly, we sought to establish the feasibility, reliability, and validity of a commercially available cognitive EMA platform.

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Environmentally induced sensor temperature fluctuations can distort the outputs of a sensor, reducing their stability during long-term health monitoring. Here, a passive isothermal flexible sensor is proposed by using hierarchical cellulose aerogel (HCA) as the top tribonegative layer, which allows the sensor to adapt dynamic thermal environments through both radiative cooling and heat insulation. The radiative cooling effect can cool down the temperatures of a sensor in summer, while the hollow microfibers in HCA provide ultralow thermal conductivity to reduce internal heat loss in winter.

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Resolving the contrasting leaf hydraulic adaptation of C and C grasses.

New Phytol

January 2025

Department of Ecology and Evolutionary Biology, University of California Los Angeles, 621 Charles E. Young Dr. South, Los Angeles, CA, 90095, USA.

Grasses are exceptionally productive, yet their hydraulic adaptation is paradoxical. Among C grasses, a high photosynthetic rate (A) may depend on higher vein density (D) and hydraulic conductance (K). However, the higher D of C grasses suggests a hydraulic surplus, given their reduced need for high K resulting from lower stomatal conductance (g).

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Association of Blood Pressure and Retinal Nerve Fiber Layer Rates of Thinning in Patients with Moderate to Advanced Glaucoma.

Ophthalmol Glaucoma

January 2025

Glaucoma Division, Stein Eye Institute, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California. Electronic address:

Purpose: Investigate the influence of baseline blood pressure (BP) on retinal nerve fiber layer (RNFL) rates of change (RoC) in glaucoma patients with central damage or moderate to severe disease.

Design: Prospective cohort study.

Participants: 110 eyes with ≥4 RNFL optical coherence tomography scans and ≥2 years of follow-up.

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A Bundled, Practice-Based Intervention to Increase HPV Vaccination.

Pediatrics

January 2025

Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.

Background And Objectives: Human papillomavirus (HPV) vaccination rates are suboptimal, and missed vaccination opportunities are common. We hypothesized that a bundled intervention improves missed HPV vaccination opportunities.

Methods: We used a pre-post design to assess differences in HPV vaccine missed opportunities (visits when vaccine-eligible adolescents are not vaccinated).

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Background: - Little is known about mitral transcatheter edge-to-edge repair (TEER) performed outside of usual working hours. We aimed to explore the prevalence, correlates, and outcomes of mitral TEER initiated off-hours, i.e.

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Salivary cortisol and affective responses to acute psychosocial stress among adolescents.

Psychoneuroendocrinology

December 2024

University of California, Irvine, Department of Psychological Science, Irvine, CA, USA; University of California Los Angeles, Cousins Center for Psychoneuroimmunology, Los Angeles, CA, USA.

Background: Acute psychosocial stress activates the hypothalamic-pituitary-adrenal (HPA) axis and triggers the release of cortisol, a commonly used biomarker of stress reactivity. Yet only 25 % of studies have reported a correlation between cortisol and affective responses to stress. This study aimed to examine whether cortisol reactivity following an acute psychosocial stressor in the laboratory correlated with concurrent positive and negative affect in adolescents, and whether early life adversity (ELA) moderated this relationship.

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Nowadays, consent to use donor bodies for medical education and research is obtained from the body donors and their families before the donation. Recently, the International Federation of Associations of Anatomists (IFAA) published guidelines that could restrict the appearance of cadaveric images in commercial anatomical resources such as textbooks and other educational products. These guidelines state that the donor must expressly consent to using such images for this purpose.

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