91,654 results match your criteria: "University of Southern California; gnedeva@usc.edu.[Affiliation]"
J Acquir Immune Defic Syndr
November 2024
Center for Interdisciplinary Research in Sexuality, AIDS and Society. Universidad Peruana Cayetano Heredia, Lima, Peru.
Background: Latin America-amidst its largest mass migration-has seen minimal progress in curbing new HIV infections. Transgender women (TW) in the region are disproportionately affected, but scant data examines HIV vulnerabilities alongside migration.
Methods: Between February-July 2022, 211 young TW ages 16-24 in Lima participated in a cross-sectional quantitative study accompanied by serological testing (HIV, syphilis, chlamydia, gonorrhea, hepatitis B).
J Acquir Immune Defic Syndr
November 2024
Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA.
Background: Limited data exist on bictegravir pharmacokinetics in pregnancy among persons with HIV (PWH) and infant washout.
Setting: Nonrandomized, open-label, multi-center phase-IV prospective study of bictegravir pharmacokinetics and safety in pregnant PWH and their infants.
Methods: Steady-state 24-hour pharmacokinetic sampling of oral bictegravir 50 mg once daily (a component of fixed-dose combination bictegravir/emtricitabine/tenofovir alafenamide) during the 2nd and 3rd trimesters and postpartum was performed.
Proc Natl Acad Sci U S A
January 2025
Key Laboratory of Evolution & Marine Biodiversity (Ministry of Education) and Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China.
Stable inheritance of DNA N-methyladenine (6mA) is crucial for its biological functions in eukaryotes. Here, we identify two distinct methyltransferase (MTase) complexes, both sharing the catalytic subunit AMT1, but featuring AMT6 and AMT7 as their unique components, respectively. While the two complexes are jointly responsible for 6mA maintenance methylation, they exhibit distinct enzymology, DNA/chromatin affinity, genomic distribution, and knockout phenotypes.
View Article and Find Full Text PDFJ Infect Dis
January 2025
Department of Internal Medicine, University of Southern California, Los Angeles, CA 90033, USA.
Background: In people with HIV (PWH) who are virally suppressed (VS) on antiretroviral therapy (ART), abdominal obesity (AO) is linked to neurocognitive impairment (NCI), potentially due to visceral adiposity, inflammation, and reduced insulin-like growth factor 1 (IGF-1). Tesamorelin, a growth hormone-releasing hormone, reduces AO and increases IGF-1, suggesting it might mitigate NCI in VS PWH.
Methods: This 6-month, Phase II randomized, open-label clinical trial compared Tesamorelin versus standard-of-care (SOC) for NCI in abdominally obese PWH.
J Am Acad Orthop Surg
February 2025
From the Department of Orthopaedic Surgery, Keck Medical Center of the University of Southern California, Los Angeles, CA (Ihn, Chung, Lovro, Patterson, Christ, and Heckmann), the Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN (Chen), the Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA (Tucker), and the Department of Radiology, Keck Medical Center of the University of Southern California, Los Angeles, CA (White, and Hwang).
Introduction: Vascular injury during acetabular screw fixation is a life-threatening complication of total hip arthroplasty. This study uses three-dimensional computed tomography to (1) measure absolute distance from the external iliac artery (EIA) to the acetabulum, (2) determine available bone stock along the EIA path, and (3) create a novel acetabular vascular risk map.
Methods: A retrospective radiographic study was conducted using three-dimensional CT.
JAMA Netw Open
January 2025
Division of General Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor.
Pain Ther
February 2025
Robert Wood Johnson University Hospital/Rutgers Medical School, New Brunswick, NJ, USA.
Introduction: Many interventional strategies are commonly used to treat chronic low back pain (CLBP), though few are specifically intended to target the distinct underlying pathomechanisms causing low back pain. Restorative neurostimulation has been suggested as a specific treatment for mechanical CLBP resulting from multifidus dysfunction. In this randomized controlled trial, we report outcomes from a cohort of patients with CLBP associated with multifidus dysfunction treated with restorative neurostimulation compared to those randomized to a control group receiving optimal medical management (OMM) over 1 year.
View Article and Find Full Text PDFNeuroradiology
January 2025
Neuroendovascular Program, Massachusetts General Hospital & Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Introduction: Mechanical thrombectomy (MT) efficacy in medium vessel occlusion (MeVO) stroke, particularly in patients with low Alberta Stroke Program Early Computed Tomography Score (ASPECTS), remains less explored.
Methods: This retrospective study analyzed data from 443 AIS patients treated with MT for MeVO and low ASPECTS (4-7) at 37 centers across North America, Asia, and Europe, from September 2017 to July 2021. Patients were categorized into ASPECTS of 4-5 and 6-7.
J Bone Joint Surg Am
January 2025
Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, California.
Background: Complete blood cell count-based ratios (CBRs), including the neutrophil-lymphocyte ratio (NLR) and monocyte-lymphocyte ratio (MLR), are inflammatory markers associated with postoperative morbidity. Given the link between the surgical stress response and complications after total joint arthroplasty (TJA), this study aimed to evaluate whether higher preoperative CBR values predict greater postoperative benefits associated with dexamethasone utilization.
Methods: The Premier Healthcare Database was queried for adult patients who underwent primary, elective total hip or knee arthroplasty (THA or TKA).
Neurosurgery
February 2025
Department of Molecular Microbiology and Immunology, Keck School of Medicine, USC, Los Angeles , California , USA.
Am Heart J Plus
January 2025
University of Pittsburgh Medical Center, Pittsburgh, PA, United States of America.
Objective: Evaluate the relationship of cathepsin-D (CD) on disease severity and clinical outcomes for women with peripartum cardiomyopathy.
Background: Cathepsin-D is a protease released during oxidative stress that cleaves prolactin (PRL) generating a 16 kDa fragment that is pro-apoptotic, anti-angiogenic, and has been implicated in the pathogenesis of peripartum cardiomyopathy (PPCM).
Methods: In 99 women with newly diagnosed PPCM enrolled in the Investigation in Pregnancy Associated Cardiomyopathy (IPAC) study, CD levels were assessed by ELISA from serum obtained at study entry.
Orthop J Sports Med
January 2025
Case Western Reserve University School of Medicine, Cleveland, Ohio, USA.
Background: The growing popularity of glucagon-like peptide-1 receptor agonists (GLP-1-RAs) for weight loss could significantly impact joint preservation and arthroplasty. While this will in part be driven by the association between obesity, osteoarthritis (OA), and total joint arthroplasty (TJA), recent evidence also indicates that GLP-1-RAs may have direct joint-protective, anti-inflammatory effects.
Purpose: To evaluate the association between GLP-1-RA use and the onset and progression of hip and knee OA in an obese population.
Health Aff Sch
January 2025
Department of Family Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, United States.
The rapid rise in numbers of people living with Alzheimer's disease and related disorders (ADRD) poses major challenges to health systems and policy. Although primary care clinicians provide ongoing medical care for 80% of affected individuals, they face persistent barriers to providing high-quality dementia care. We conducted qualitative interviews with family physicians ( = 20) to understand what core outcomes they consider most important and what care processes and systems and policy strategies they propose to achieve them.
View Article and Find Full Text PDFKidney Int Rep
January 2025
Department of Cardiovascular Sciences, University of Leicester, Leicester, Leicestershire, UK.
Introduction: Endothelin A (ETA) receptor activation is a driver of proteinuria, kidney inflammation, and fibrosis in IgA nephropathy (IgAN). Atrasentan, a selective ETA receptor antagonist, has potential to reduce proteinuria and preserve kidney function in IgAN. ALIGN (NCT04573478) is a phase 3, randomized, double-blind, placebo-controlled clinical trial of atrasentan in patients with IgAN at high risk of kidney function loss.
View Article and Find Full Text PDFWorld Psychiatry
February 2025
Departments of Population and Public Health Sciences, and Psychology, and School of Social Work, University of Southern California, Los Angeles, CA, USA.
Environ Sci Technol
January 2025
Marine Synthetic Ecology Research Center, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Guangdong Provincial Observation and Research Station for Marine Ranching in Lingdingyang Bay, China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, State Key Laboratory for Biocontrol, Sun Yat-sen University, Zhuhai 519082, China.
Plants can recruit microorganisms to enhance soil arsenic (As) removal and nitrogen (N) turnover, but how microbial As methylation in the rhizosphere is affected by N biotransformation is not well understood. Here, we used acetylene reduction assay, gene amplicon, and metagenome sequencing to evaluate the influence of N biotransformation on As methylation in the rhizosphere of , a potential As hyperaccumulator. was grown in mining soils (MS) and artificial As-contaminated soils (AS) over two generations in a controlled pot experiment.
View Article and Find Full Text PDFHealth Econ
January 2025
Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
Policymakers can use cost-effectiveness analysis to set value-based prices (VBP) for new pharmaceuticals. However, the uncertainty of investigational drug benefits complicates this pricing strategy. Such complexity stems from decision-makers' risk aversion and the potential change in the estimated value with emerging evidence.
View Article and Find Full Text PDFSci Rep
January 2025
Bodega Marine Laboratory, University of California, Davis, Bodega Bay, CA, 94923, USA.
Marine foundation species are increasingly impacted by anthropogenic stressors, driving a loss of diversity within these critical habitats. Prior studies suggest that species diversity within mussel beds has declined precipitously in southern California, USA, but it is unclear whether a similar loss has occurred farther north. Here, we resurvey a mussel bed community in northern California first sampled in 1941 to evaluate changes in diversity after 78 years.
View Article and Find Full Text PDFSci Data
January 2025
University of Southern California, Viterbi School of Engineering, 3737 Watt Way, Powell Hall of Engineering, Los Angeles, CA, 90089, USA.
Soil erosion in North Africa modulates agricultural and urban developments as well as the impacts of flash floods. Existing investigations and associated datasets are mainly performed in localized urban areas, often representing a limited part of a watershed. The above compromises the implementation of mitigation measures for this vast area under accentuating extremes and continuous hydroclimatic fluctuations.
View Article and Find Full Text PDFChildhood obesity poses a significant public health challenge, yet the molecular intricacies underlying its pathobiology remain elusive. Leveraging extensive multi-omics profiling (methylome, miRNome, transcriptome, proteins and metabolites) and a rich phenotypic characterization across two parts of Europe within the population-based Human Early Life Exposome project, we unravel the molecular landscape of childhood obesity and associated metabolic dysfunction. Our integrative analysis uncovers three clusters of children defined by specific multi-omics profiles, one of which characterized not only by higher adiposity but also by a high degree of metabolic complications.
View Article and Find Full Text PDFHealth Serv Res
January 2025
Schaeffer Center for Health Policy & Economics, Price School of Public Policy, University of Southern California, Los Angeles, California, USA.
Objective: To understand how Medicare Advantage (MA) networks impact utilization patterns and plan choices, using the 2019 discontinuation of MA 1876 Cost plans as a natural experiment.
Study Setting And Design: We study 1876 Cost plans, MA plans for which out-of-network care is covered through traditional Medicare (TM) and many of which CMS discontinued in 2019. We characterize the proportion of Cost plan enrollees who utilized out-of-network care in 2018 from different types of medical specialties.
Nurs Educ Perspect
November 2024
About the Authors Adrienne Martinez-Hollingsworth, PhD, MSN, RN, PHN, WAN, is director of research and evaluation, AltaMed Institute for Health Equity, and assistant project scientist, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California. Dawn Goodolf, PhD, RN, is associate dean, Helen S. Breidegam School of Nursing and Public Health, and associate professor, Moravian University, Bethlehem, Pennsylvania. Nia Martin, PhD, MSN, RN, is assistant professor, Loma Linda University School of Nursing, Loma Linda, California. Linda Kim, PhD, RN, PHN, is research scientist, Department of Nursing Research, and assistant professor of medicine, Cedars Sinai Medical Center, Los Angeles, California. Jennifer Saylor, PhD, APRN, ACNS-BC, is associate dean for faculty and student affairs and associate professor, School of Nursing, University of Delaware, Newark, Delaware. Jennifer Evans, DNP, RN, NC-BC, is assistant dean and associate professor, University of Southern Indiana College of Nursing and Health Professions, Evansville, Indiana. Annette Hines, PhD, RN, is the Executive Director of the Susan S. Morrison School of Nursing, University of St. Thomas. Jin Jun, PhD, RN, is assistant professor, Center for Healthy Aging, Self-Management and Complex Care, College of Nursing, Ohio State University, Columbus, Ohio. The first author received a travel stipend from HRSA 22-109 Health and Public Safety Workforce Resiliency Training Program (U3NHP45414).The authors are grateful to Beth Speidel and Delsa Richards for their engagement and feedback. For more information, contact Adrienne Martinez-Hollingsworth at
Aim: This survey explored nurse leaders' impressions of burnout on college/school of nursing (CON/SON) administrative staff and leadership-facilitated strategies used to promote resilience building/mitigate burnout.
Background: Administrative staff are foundational to the success of a university's CON/SON, yet few studies have explored the impact of burnout in this group.
Method: Cross-sectional survey distributed to associate dean and business officer attendees of the 2022 American Association of Colleges of Nursing, Business Officers of Nursing Schools meeting (summer 2022) (n = 64).
Clin Neurol Neurosurg
January 2025
University of Southern California, Los Angeles, CA, United States. Electronic address:
Hepatology
January 2025
Division of Gastroenterology and Hepatology, University of California, San Francisco, San Francisco, CA.
Background Aims: Patients with hepatocellular carcinoma (HCC) meeting UNOS-downstaging (DS) criteria have excellent post-liver transplantation (LT) outcomes. Studies on HCC beyond UNOS-DS criteria ("All-comers" (AC)) have been limited by small sample size and short follow-up time, prompting this analysis.
Approach Results: 326 patients meeting UNOS-DS and 190 meeting AC criteria from 9 LT centers across 5 UNOS regions were enrolled from 2015 to 2023 and prospectively followed.
J Bone Miner Res
January 2025
Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States.
Bone mineral density (BMD), an important marker of bone health, is regulated by a complex interaction of proteins. Plasma proteomic analyses can contribute to identification of proteins associated with changes in BMD. This may be especially informative in stages of bone accrual and peak BMD achievement (i.
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