3,136 results match your criteria: "David Geffen School of Medicine at University of California.[Affiliation]"

Objectives: Cisplatin is known to cause inner ear dysfunction. There is growing evidence that cisplatin-induced demyelination of spiral or Scarpa's ganglion neurons may play an additional role in drug-induced ototoxicity alongside afferent neuron injury. As Schwann cells produce myelin, there may be an opportunity to reduce ototoxic inner ear damage by promoting Schwann cell viability.

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Article Synopsis
  • A growing trend in research is using deep neural networks (DNNs) on EEG recordings to diagnose disorders, but there's concern about data leakage.
  • Many studies randomly assign EEG segments to training or test sets, leading to the same subjects’ data being in both sets, potentially skewing accuracy results.
  • Our research shows that performance metrics using a segment-based holdout strategy can greatly overestimate classifier accuracy on new subjects, highlighting a major issue in current DNN-EEG studies.
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Tuning of genome structure and function is accomplished by chromatin-binding proteins, which determine the transcriptome and phenotype of the cell. Here we investigate how communication between extracellular stress and chromatin structure may regulate cellular mechanical behaviors. We demonstrate that histone H1.

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Alzheimer's disease pathophysiology in the Retina.

Prog Retin Eye Res

July 2024

Department of Neurosurgery, Maxine Dunitz Neurosurgical Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Department of Biomedical Sciences, Division of Applied Cell Biology and Physiology, Cedars-Sinai Medical Center, Los Angeles, CA, USA. Electronic address:

Article Synopsis
  • The retina is being studied as a promising, noninvasive way to diagnose and track Alzheimer's disease (AD) because it shows similar pathological features to those found in the brain, like amyloid and tau protein abnormalities.
  • Research has found that structural and functional issues in the retina, including reduced blood flow and inflammation, correlate with the severity of AD symptoms in patients.
  • Advanced imaging technologies are now capable of detecting AD-related changes in the retina, which could help in early diagnosis and monitoring of the disease, but more studies are needed with larger, diverse groups to confirm these findings and improve screening methods.
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Hepatic steatosis induced by nicotine plus Coca-Cola™ is prevented by nicotinamide riboside (NR).

Front Endocrinol (Lausanne)

May 2024

Division of Endocrinology, Metabolism and Molecular Medicine, Department of Internal Medicine, Charles R. Drew University of Medicine and Science, Los Angeles, CA, United States.

Introduction: Cigarettes containing nicotine (Nic) are a risk factor for the development of cardiovascular and metabolic diseases. We reported that Nic delivered via injections or e-cigarette vapor led to hepatic steatosis in mice fed with a high-fat diet. High-fructose corn syrup (HFCS) is the main sweetener in sugar-sweetened beverages (SSBs) in the US.

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  • Outpatient treatment of COVID-19 using subcutaneous monoclonal antibodies (mAbs) could simplify logistics compared to intravenous delivery.
  • In a clinical trial with 211 participants, the BMS mAbs did not show significant benefits in symptom improvement or viral load reduction compared to placebo, despite being safe with fewer severe adverse events reported.
  • The results suggest that subcutaneous administration of BMS mAbs may not be effective for low-risk COVID-19 patients, potentially due to how the body absorbs mAbs through this method.
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A major limitation of gene therapy for sickle cell disease (SCD) is the availability and access to a potentially curative one-time treatment, due to high treatment costs. We have developed a high-titer bifunctional lentiviral vector (LVV) in a vector backbone that has reduced size, high vector yields, and efficient gene transfer to human CD34 hematopoietic stem and progenitor cells (HSPCs). This LVV contains locus control region cores expressing an anti-sickling β-globin gene and two microRNA-adapted short hairpin RNA simultaneously targeting and transcripts to maximally induce fetal hemoglobin (HbF) expression.

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Deep brain stimulation of the amygdala for treatment-resistant combat post-traumatic stress disorder: Long-term results.

J Psychiatr Res

July 2024

Department of Neurosurgery, UCLA, 300 Stein Plaza Driveway Suite 420, Los Angeles, CA, 90095, USA; Southwest VA Epilepsy Center of Excellence, 11301 Wilshire Blvd, Bldg 500 (10H2), Los Angeles, CA, USA, 90073. Electronic address:

Deep brain stimulation (DBS) holds promise for neuropsychiatric conditions where imbalance in network activity contributes to symptoms. Treatment-resistant Combat post-traumatic stress disorder (TR-PTSD) is a highly morbid condition and 50% of PTSD sufferers fail to recover despite psychotherapy or pharmacotherapy. Reminder-triggered symptoms may arise from inadequate top-down ventromedial prefrontal cortex (vmPFC) control of amygdala reactivity.

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Background: The United States (US) is an extreme global outlier for drug-related death rates. However, data describing drug-related deaths are generally available only on an 8-13-month lag. Furthermore, granular details about substance-involvement are often not available, which particularly stymies efforts to track fatal polysubstance and novel psychoactive substance use.

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Key Points: Parental leave policies for physician trainees are inconsistent. Nephrology fellows are largely unaware of parental leave policies and pregnancy accommodations in their programs. Individual nephrology programs should improve awareness about national and local program policies among trainees.

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Background: Low-dose colchicine has been shown to lower major adverse cardiovascular events (MACE) among those with cardiovascular disease (CVD). It remains unclear how long a CVD patient needs to live to potentially benefit from colchicine. Our study aimed to determine the time to benefit (TTB) of colchicine in individuals with CVD.

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Reproductive cancers, encompassing various malignancies like endometrial, ovarian, cervical cancer, and gestational trophoblastic neoplasia, pose a significant global health burden. Understanding their patterns is vital for effective prevention and management. Contraceptives show a protective effect against some of these cancers.

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Background: The lack of consensus on equity measurement and its incorporation into quality-assessment programs at the hospital and system levels may be a barrier to addressing disparities in surgical care. This study aimed to identify population-level and within-hospital differences in the quality of surgical care provision.

Study Design: The analysis included 657 NSQIP participating hospitals with more than 4 million patients (2014 to 2018).

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Pathogenesis of Central Serous Chorioretinopathy and the Link Between Choroidal Hyperpermeability and Retinal Pigment Epithelium Pump Reversal.

Am J Ophthalmol

October 2024

Retinal Disorders and Ophthalmic Genetics Division, Stein Eye Institute David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, USA (F.F., C.F., N.A., S.V., D.S.); Greater Los Angeles VA Healthcare Center, Los Angeles, California, USA (D.S.). Electronic address:

Purpose: To describe 6 cases of acute central serous chorioretinopathy (CSCR) and the response to laser treatment, focusing on the underlying pathogenic mechanism.

Methods: Multimodal imaging from 6 eyes of 6 patients with acute and recurrent CSCR were reviewed, including fundus autofluorescence (FAF), fluorescein angiography (FA), indocyanine green angiography (ICGA), and optical coherence tomography (OCT) at baseline and after laser therapy.

Results: In 3 of the 6 cases with acute CSCR, the hyporeflective lucency sign was identified with cross-sectional and en face OCT and co-localized with an intense active inkblot retinal pigment epithelium (RPE) leak on FA.

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Overdose and COVID-19 in Baja California, Mexico: The Need for New Methodologies for Understanding Local Trends.

Am J Public Health

June 2024

Jaime Arredondo Sanchez Lira is an assistant professor at the School of Public Health and Social Policy, University of Victoria, British Columbia, Canada, and a Canada research chair on substance use and health systems at the Canadian Institute of Substance Use Research. David Goodman-Meza is with the Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles.

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Background: Although post-traumatic stress disorder (PTSD) and depression screening are recommended for traumatic injury patients, routine screening is still uncommon. Salivary inflammatory biomarkers have biological plausibility and potential feasibility and acceptability for screening. This study tested prospective associations between several salivary inflammatory biomarkers (proinflammatory cytokines interleukin-1β, interleukin-6, tumor necrosis factor-α; and C-reactive protein), collected during hospitalization and PTSD and depressive symptoms at 5-month follow-up.

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Send it, receive it, quick erase it: A mouse model to decipher chemokine communication.

J Exp Med

July 2024

Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA, USA.

A method to precisely determine which cells respond to chemokines in vivo is currently lacking. A novel class of dual fluorescence reporter mice could help identify cells that produce and/or sense a given chemokine in vitro and in vivo (Rodrigo et al. 2024.

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Clinical practice guidelines for the management of chronic kidney disease (CKD) associated with type 2 diabetes (T2D) are designed to assist healthcare professionals with clinical decision making by providing recommendations on the screening, detection, management, and treatment of these conditions. However, primary care practitioners (PCPs) may have clinical inertia when it comes to routinely enacting CKD and T2D guideline recommendations in their clinical practices. Guideline developers have published a range of resources with the aim of facilitating easier access to guideline recommendations to support efficient and consistent implementation into clinical practice of PCPs.

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Background: Women Veterans with co-morbid medical and mental health conditions face persistent barriers accessing high-quality health care. Evidence-based quality improvement (EBQI) offers a systematic approach to implementing new care models that can address care gaps for women Veterans.

Objective: This study examines factors associated with the successful deployment of EBQI within integrated health systems to improve primary care for women Veterans with complex mental health needs.

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Background: A phase I clinical study for patients with locally advanced H&N cancer with a new class of botanical drug APG-157 provided hints of potential synergy with immunotherapy. We sought to evaluate the efficacy of the combination of APG-157 and immune checkpoint inhibitors.

Methods: CCL23, UM-SCC1 (human), and SCCVII (HPV-), MEER (HPV+) (murine) H&N cancer cell lines were utilized for in vitro and in vivo studies.

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Objective: We compared the effectiveness and safety of polidocanol 1% endovenous microfoam ablation vs endovenous thermal ablation with radiofrequency or laser energy for treatment of venous insufficiency caused by lower extremity truncal vein incompetence via network meta-analysis of published comparative evidence.

Methods: We conducted a systematic literature review following best practices, including a prospective protocol. We screened studies published in English from 2000 to 2023 for randomized and nonrandomized studies reporting direct or indirect comparisons between polidocanol 1% endovenous microfoam and endovenous thermal ablation.

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