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David Geffen School of Medicine at The ... Publications | LitMetric

1,647 results match your criteria: "David Geffen School of Medicine at The University of California[Affiliation]"

The integration of large language models (LLMs) into clinical diagnostics has the potential to transform doctor-patient interactions. However, the readiness of these models for real-world clinical application remains inadequately tested. This paper introduces the Conversational Reasoning Assessment Framework for Testing in Medicine (CRAFT-MD) approach for evaluating clinical LLMs.

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Association of binge alcohol use with functional outcomes among individuals with COVID-19 infection.

Alcohol Alcohol

November 2024

Department of Family Medicine, University of Washington, 4225 Roosevelt Way NE, Suite 308, Seattle, WA, 98105, United States.

Aims: Alcohol consumption along with negative sequelae from excess alcohol intake increased during the COVID-19 pandemic. We evaluated the association between binge alcohol use and long-term functional outcomes among COVID-19-positive individuals.

Methods: Using a prospective, longitudinal, multisite cohort study design, we evaluated the association between binge alcohol use and mental and physical functional outcomes using Patient-Reported Outcomes Measurement Information System (PROMIS)-29 scores three and six months postinfection.

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Introduction: Women with HIV (WHIV) have higher risks of adverse pregnancy outcomes, particularly in the absence of antiretroviral treatment(ART), and timing of ART may impact risk.

Methods: In IMPAACT 2010 (VESTED), 643 pregnant WHIV in 9 countries were randomized 1:1:1 to initiate ART: dolutegravir (DTG)+emtricitabine(FTC)/tenofovir alafenamide(TAF); DTG+FTC/tenofovir disoproxil fumarate (TDF) or efavirenz (EFV)/FTC/TDF. We describe adverse pregnancy outcomes in women with a subsequent pregnancy during 50 weeks of postpartum follow-up: spontaneous abortion (<20 weeks), stillbirth (≥20 weeks), preterm delivery (<37 weeks) and small-for-gestational-age (SGA).

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Psychosocial correlates of alcohol and substance use in college youth with type 1 diabetes.

J Pediatr Psychol

December 2024

Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at the University of California, Los Angeles (UCLA), Los Angeles, CA, United States.

Objective: Adolescents and young adults with chronic diseases face unique challenges during the college years and may consume alcohol and other substances to cope with stressors. This study aimed to assess the patterns of substance use and to determine psychosocial correlates of these behaviors among college youth with type 1 diabetes (T1D).

Methods: College youth with T1D were recruited via social media and direct outreach into a web-based study.

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Dual-task training and exergaming interventions are increasingly recognized for their potential to enhance cognitive, physical, and mood outcomes among older adults and individuals with neurological conditions. Despite this, clinical and community programs that use these interventions are limited in availability. This paper presents the "FitBrain" program, an outpatient clinical model that combines dual-task and exergaming interventions to promote cognitive and physical health.

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Coinfection with human papillomavirus (HPV) and HIV compounds the risks of developing cervical, anal, and HPV-associated oral neoplasia. Safe prophylactic vaccines are available to prevent HPV infections in people with HIV(PWH). Yet, vaccine efficacy and duration of protection remain questionable.

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Gut-microbiota-brain Axis and post-traumatic epilepsy.

Epilepsia Open

December 2024

Department of Pediatrics and Children's Discovery and Innovation Institute, David Geffen School of Medicine at the University of California, Los Angeles, California, USA.

There has been growing evidence that perturbations in gut-microbiota-brain axis (GMBA) are involved in mechanisms of chronic sequelae of traumatic brain injury (TBI). This review discusses the connection between GMBA and post-traumatic epilepsy (PTE), the latter being a common outcome of TBI. The focus is on two aspects of post-TBI GMBA dysfunction that are relevant to epilepsy.

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Cytometry is an advanced technique for simultaneously identifying and quantifying many cell surface and intracellular proteins at a single-cell resolution. Analyzing high-dimensional cytometry data involves identifying and quantifying cell populations based on their marker expressions. This study provided a quantitative review and comparison of various ways to phenotype cellular populations within the cytometry data, including manual gating, unsupervised clustering, and supervised auto-gating.

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Background: Acute ischemic stroke (AIS) is a major cause of morbidity and mortality, with hemorrhagic transformation (HT) further worsening outcomes. Traditional scoring systems have limited predictive accuracy for HT in AIS. Recent research has explored machine learning (ML) and deep learning (DL) algorithms for stroke management.

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T-switch-ing TCR specificity.

Immunity

December 2024

Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine at the University of California Los Angeles (UCLA), Los Angeles, CA, USA; Department of Microbiology, Immunology, and Molecular Genetics at the University of California Los Angeles (UCLA), Los Angeles, CA, USA; Parker Institute for Cancer Immunotherapy Center at UCLA, Los Angeles, CA, USA; Jonsson Comprehensive Cancer Center-UCLA, Los Angeles, CA, USA; Broad Stem Cell Research Center-UCLA, Los Angeles, CA, USA. Electronic address:

Central tolerance restricts T cells that target self-antigens. In this issue of Immunity, Abdelfattah et al. describe a method to generate self-reactive T cell receptors (TCRs) by directed evolution of non-autoreactive TCRs to recognize self-antigen peptides and demonstrate potential for T cells engineered with such receptors in immunotherapy.

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Outcome of Surgery for Hypothalamic Hamartoma-Related Epilepsy: A Systematic Review and Individual Participant Data Meta-Analysis.

Neurology

December 2024

From the Department of Medicine (F.N.), Université de Montréal, Québec, Canada; David Geffen School of Medicine at the University of California, Los Angeles (K.G., A.F.); Warren Alpert Medical School of Brown University (J.-S.C.), Providence, RI; Division of Neurology (A.H.), Department of Pediatrics, Sainte-Justine University Hospital Centre, Montréal; Brain and Development Research Axis (A.H., A.G.W.), Centre de Recherche Azrieli du CHU Sainte-Justine, Montréal; Department of Neuroscience (M.R.K., D.K.N.), Université de Montréal; Research Centre of the University of Montreal Hospital Center (CRCHUM) (M.R.K., D.K.N.); Division of Neurology (M.R.K., D.K.N.), University of Montreal Hospital Center (CHUM); Laboratoire d'Imagerie Optique en Neurodéveloppement (LIONlab) (A.G.), CHU Sainte-Justine Research Center, Montréal; Cerebrum (A.G.), Department of Psychology, Université de Montréal, Québec, Canada; Department of Neurological Surgery (N.S.), Northwestern University Feinberg School of Medicine, Chicago, IL; Neuroscience Advanced Clinical Imaging Service (NACIS) (J.Y.-M.Y.), Department of Neurosurgery, The Royal Children's Hospital; Department of Paediatrics (J.Y.-M.Y.), The University of Melbourne; Neuroscience Research (J.Y.-M.Y.), Murdoch Children's Research Institute, Melbourne, Australia; Hope for Hypothalamic Hamartomas Organization (L.S., E.W.); APHM (B.D., D.S.), Timone Hospital, Epileptology and Cerebral Rhythmology, Marseille, France; Jane and John Justin Institute for Mind Health (M.S.P.), Cook Children's Health Care System, Fort Worth, TX; Division of Neurosurgery (K.M., G.M.I.), Hospital for Sick Children; Neurosciences & Mental Health (K.M., G.M.I.), SickKids Research Institute, Toronto, Ontario, Canada; Center for Neuroscience Research (W.D.G.), and Department of Neurology (W.D.G.), Children's National Hospital, George Washington University School of Medicine, Washington, DC; Department of Neurosurgery (D.M.), Université de Sherbrooke, Quebec, Canada; Pediatric Neurology Division (J.F.K.), Barrow Neurological Institute at Phoenix Children's Hospital, AZ; and Department of Neurosurgery (A.F.), David Geffen School of Medicine at the University of California, Los Angeles; Division of Neurosurgery (A.G.W.), Department of Surgery, Sainte-Justine University Hospital Centre, Montréal; Division of Neurosurgery (A.G.W.), Department of Surgery, University of Montreal Hospital Center (CHUM), Montréal, Québec, Canada.

Background And Objectives: There is a paucity of data directly comparing the outcome of surgical techniques available for the treatment of hypothalamic hamartomas (HHs). This study aims to evaluate the safety and efficacy of commonly used surgical approaches in the treatment of HH-related epilepsy.

Methods: A systematic review and individual participant data (IPD) meta-analysis was conducted.

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Background: Evidence is limited on insured patients' use of safety net providers as vertically integrated health systems spread throughout the United States.

Objectives: To examine whether market-level health system penetration is associated with: (1) switches in Medicare beneficiaries' usual source of primary care from federally qualified health centers (FQHCs) to health systems; and (2) FQHCs' overall Medicare patient and visit volume.

Research Design: Beneficiary-level discrete-time survival analysis and market-level linear regression analysis using Medicare fee-for-service claims data from 2013 to 2018.

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Article Synopsis
  • Chronic viral infections can reactivate during acute illnesses, and this study looked at how SARS-CoV-2 infection affects latent viruses like Epstein-Barr Virus (EBV) and cytomegalovirus (CMV) in over 1,154 hospitalized COVID-19 patients.* -
  • The analysis showed significant reactivation of multiple virus families during the acute stage of COVID-19, which correlated with disease severity, demographics, and clinical outcomes, including higher mortality rates.* -
  • Additionally, persistent viral reactivation after recovery was linked to ongoing symptoms of Post-Acute Sequelae of COVID-19 (PASC), emphasizing the importance of understanding these interactions for better treatment and management strategies.*
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Diversity-generating retroelements (DGRs) accelerate evolution by rapidly diversifying variable proteins. The human gastrointestinal microbiota harbors the greatest density of DGRs known in nature, suggesting they play adaptive roles in this environment. We identified >1,100 unique DGRs among human-associated species and discovered a subset that diversify adhesive components of Type V pili and related proteins.

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Article Synopsis
  • A better understanding of chronic lung allograft dysfunction (CLAD) is needed, as it leads to high mortality rates after lung transplants.
  • The study focused on a genetic variation (C3R102G) that enhances complement activation, finding that lung transplant recipients with this variation tend to have poorer outcomes related to CLAD, especially if they develop donor-specific antibodies.
  • In experiments with mice, decreased regulation of the complement system resulted in worse airway damage and increased B cell activity, linking genetic predisposition to complement activation with worse survival outcomes after lung transplantation.
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Introduction: Preterm birth, defined as birth before 37 weeks of gestation, is the leading cause of death of children under the age of five years worldwide. Globally there has been no change in the preterm birth rate between 2010 and 2020, when rates were calculated to be 9.8% and 9.

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Mossy cells (MCs) in the hilus of the dentate gyrus (DG) are important for regulating activity of dentate granule cells and are particularly vulnerable to excitotoxic damage in epilepsy. Recent studies have demonstrated that MCs in the dorsal and ventral DG differ in the patterns of their axonal projections and neurochemical identities. Such differences raised questions about the vulnerability and plasticity of dorsal and ventral MCs in epilepsy and led to this study using a mouse pilocarpine model of epilepsy.

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Primary results of the International Maternal Pediatric Adolescent AIDS Clinical Trials Network (IMPAACT) 2002 trial showed that cognitive behavioural therapy (CBT) and medication management algorithm (MMA) (COMB-R) significantly improved depression in youth with HIV (YWH) compared with enhanced standard care (ESC). Acceptability and satisfaction were examined among study participants and clinicians. Between March 2017 and March 2019, 13 U.

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Background: Of note, 15% to 20% of patients with duodenal or periampullary malignancies develop gastric outlet obstruction (GOO). Although small randomized trials have reported more rapid recovery and shorter hospital stay with endoscopic stenting (ES), limited studies have evaluated outcomes at a national level. The current study characterized short-term clinical and financial outcomes associated with gastrojejunostomy (GJ) vs ES in malignant GOO.

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Purpose: Determine rates of progression of incomplete retinal pigment epithelium and outer retinal atrophy (iRORA) to complete retinal pigment epithelium and outer retinal atrophy (cRORA) and rates of progression of drusen to iRORA/cRORA in eyes with geographic atrophy (GA) treated with avacincaptad pegol (ACP).

Methods: Post hoc analysis of the GATHER1 prospective, randomized, double-masked Phase II/III study that evaluated ACP 2 mg vs. sham.

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Features of Valsalva-Induced Choroidal Hemorrhage in High Myopia.

Ophthalmol Retina

October 2024

Vitreous Retina Macula Consultants of New York, New York, New York; Department of Ophthalmology, New York University Grossman School of Medicine, New York, New York. Electronic address:

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