31,868 results match your criteria: "Keck School of-Medicine[Affiliation]"

Interleukin-6 (IL-6) is a major pro-inflammatory cytokine that demonstrates a robust correlation with age and body mass index (BMI) as part of the senescence-associated secretory phenotype. IL-6 cytokines also play a crucial role in metabolic homeostasis and regenerative processes primarily via the canonical STAT3 pathway. Thus, selective modulation of IL-6 signaling may offer a unique opportunity for therapeutic interventions.

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Conscientious objection: a global health perspective.

BMJ Glob Health

December 2024

Global Bioethics Collaborative, Los Angeles, California, USA.

Conscientious objection is a critical topic that has been sparsely discussed from a global health perspective, despite its special relevance to our inherently diverse field. In this Analysis paper, we argue that blanket prohibitions of a specific type of non-discriminatory conscientious objection are unjustified in the global health context. We begin both by introducing a nuanced account of conscience that is grounded in moral psychology and by providing an overview of discriminatory and non-discriminatory forms of objection.

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Background: Aneurysmal subarachnoid hemorrhage (aSAH) carries a high economic cost and clinical morbidity in the United States. Beyond prolonged admissions and poor post-injury functional status, there is an additional cost of chronic shunt-dependent hydrocephalus for many aSAH patients. Adjuvant lumbar drain (LD) placement has been hypothesized to promote clearance of subarachnoid blood from the cisternal space, with an ultimate effect of decreasing shunt placement rates.

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Background: To evaluate the clinical presentation, pathological features and outcomes of retinoblastoma based on the race of origin in a global cohort of patients.

Methods: Retrospective collaborative study of 1426 patients who underwent primary enucleation for retinoblastoma.

Results: Patients were grouped into Caucasians (n = 231, 16%), Asians (n = 841, 59%), Hispanics (n = 226, 16%), Arabs (n = 96, 7%) and Others (Africans, African Americans, Indigenous Australians; n = 32, 2%) cohorts.

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Introduction: Down Syndrome Regression Disorder (DSRD) is a neuropsychiatric condition causing insomnia, catatonia, encephalopathy, and obsessive-compulsive behavior in otherwise healthy individuals with Down syndrome (DS). Smaller cohorts have identified heterogenous diagnostic abnormalities which have predicted immunotherapy responsiveness although pattern analysis in a large cohort has never been performed.

Methods: A multi-center, retrospective study of individuals with DSRD was performed.

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Trends in diagnostic biopsy sample collection approaches for primary bone sarcomas have shifted in the past 2 decades. Although open/incisional biopsies used to be the predominant approach to obtain diagnostic material for Ewing sarcoma and osteosarcoma, image-guided core needle biopsies have increased in frequency and are safe for patients. These procedures are less invasive and reduce recovery times but have potential limitations.

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Background: Adults living with head and neck burn injuries experience psychosocial consequences due to scarring as well as functional disabilities. However, the impact of head and neck burns on long-term self-reported psychosocial outcomes, return to work, and need for reconstructive surgery has not been well described. This study investigates the unique longitudinal problems in psychosocial and functional recovery faced by adults with head and neck burn injuries.

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As rates of obesity rise worldwide, incidence of metabolic dysfunction-associated steatotic liver disease (MASLD), formerly referred to as nonalcoholic fatty liver disease, is increasing, worsening the burden of healthcare systems. The council of the Federation of International Societies for Pediatric Gastroenterology, Hepatology, and Nutrition (FISPGHAN) identified the topic of MASLD epidemiology, treatment, and prevention as a global priority issue to be addressed by an expert team, with the goal to describe feasible and evidence-based actions that may contribute to reducing MASLD risk. The FISPGHAN member societies nominated experts in the field.

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Juxtaglomerular cell tumor (JxGCT) is a rare type of renal neoplasm demonstrating morphologic overlap with some mesenchymal tumors such as glomus tumor (GT) and solitary fibrous tumor (SFT). Its oncogenic drivers remain elusive, and only a few cases have been analyzed with modern molecular techniques. In prior studies, loss of chromosomes 9 and 11 appeared to be recurrent.

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Negative valence in Obsessive-Compulsive Disorder: A worldwide mega-analysis of task-based functional neuroimaging data of the ENIGMA-OCD consortium.

Biol Psychiatry

December 2024

Amsterdam UMC, Department of Anatomy & Neurosciences, Amsterdam Neuroscience, Amsterdam, The Netherlands; Amsterdam UMC, Department of Psychiatry, Amsterdam Neuroscience, Amsterdam, The Netherlands; Amsterdam UMC, Amsterdam Neuroscience, Amsterdam, The Netherlands; Amsterdam UMC, Compulsivity, Impulsivity and Attention, Amsterdam, The Netherlands.

Objective: Obsessive-compulsive disorder (OCD) is associated with altered brain function related to processing of negative emotions. To investigate neural correlates of negative valence in OCD, we pooled fMRI data of 633 individuals with OCD and 453 healthy controls from 16 studies using different negatively-valenced tasks across the ENIGMA-OCD Working-Group.

Methods: Participant data were processed uniformly using HALFpipe, to extract voxelwise participant-level statistical images of one common first-level contrast: negative vs.

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Introduction: Higher perioperative opioid use has been associated with an increase in periprosthetic joint infection, thromboembolic complications, respiratory events, gastrointestinal complications, cost, and length of stay following hip and knee arthroplasty. Limited data exists regarding the relationship between the postoperative opioid dose and complication rates following primary total shoulder arthroplasty (TSA). The purpose of this study is to investigate the relationship between perioperative opioid consumption and postoperative complications following TSA.

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Objectives: Outpatient follow-up visits are often recommended for children with ambulatory care-sensitive conditions (ACSCs) who are discharged from emergency departments or urgent care centers (acute care settings). We sought to assess whether attending a follow-up visit within 7 days is associated with seeking initial office-based care rather than acute care during a subsequent ACSC illness. Understanding this association is crucial to guide recommendations for routine short-term follow-up visits in children who seek acute care for these common conditions.

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Enhanced recovery after surgery (ERAS) protocols have informed perioperative care across multiple surgical specialties, optimizing patient outcomes through surgical stress management and accelerated recovery. This study evaluates the familiarity and adoption of ERAS elements among craniofacial and oral and maxillofacial surgeons in pediatric orthognathic surgery, a field where a formal ERAS protocol has not been established. A closed-ended survey of 102 surgeons was conducted to assess familiarity with and utilization of 14 ERAS elements.

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As demanding as dancing en pointe is, no universal standard exists to determine when a ballet dancer is ready to advance to this next level. The goal of this study was to provide preliminarily tested and reliable guidelines for a screening tool that can be used to determine (1) if a dancer is ready for pointe, (2) reasons why a dancer may not be ready, and (3) areas for improvement to guide training and preparation. Seventeen dancers aged 9 to 17 years with a minimum 4 years of ballet and who were either possibly ready for pointe or had been in pointe class less than 3 months participated in this study.

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Background: Conventional metrics such as the apnea-hypopnea index (AHI) may not fully capture the diverse clinical manifestations of obstructive sleep apnea (OSA). This study aims to establish a novel OSA subtype classification based on the patterns of apneic and hypopneic hypoxic burden (HB), a potential biomarker that more accurately reflects the severity and duration of respiratory events. We further examined the associations of these HB-based subtypes with cardiometabolic risk and brain health outcomes.

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Objectives: Urothelial carcinoma in situ (CIS) with early papillary formation is terminology sometimes used to suggest incipient high-grade papillary urothelial carcinoma (PUC) but may lead to confusion between true CIS and lateral flat spread of PUC.

Methods: It remains unclear how pathologists and urologists interpret this scenario, so a survey was circulated to 68 pathologists (group 1 = 28 academic genitourinary pathologists; group 2 = 17 pathologists with a self-reported genitourinary focus; group 3 = 23 pathologists self-reported as not genitourinary specialists) and 32 urologists.

Results: Regarding atypical urothelial lesions that appear mainly flat but contain possible papillae, group 3 was more likely to label this as CIS compared with groups 1 and 2 (35% for group 3 vs 13% for groups 1 and 2), while groups 1 and 2 more often adopted another descriptive diagnosis, such as "CIS with early papillary features" (38% for groups 1 and 2 vs 13% for group 3).

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Introduction: Rates of prenatal cannabis use (PCU) have increased in recent years. Despite evidence of developmental health consequences to offspring and birthing person, there has been a reduction in the perception of PCU-related harms. Due to the stigma and risk of legal consequences associated with disclosing PCU, individuals are often cautious to seek information from their healthcare providers.

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Therapeutic DBS for OCD Suppresses the Default Mode Network.

Hum Brain Mapp

December 2024

Weill Institute for Neurosciences, University of California, San Francisco, California, USA.

Deep brain stimulation (DBS) of the anterior limb of the internal capsule (ALIC) is a circuit-based treatment for severe, refractory obsessive-compulsive disorder (OCD). The therapeutic effects of DBS are hypothesized to be mediated by direct modulation of a distributed cortico-striato-thalmo-cortical network underlying OCD symptoms. However, the exact underlying mechanism by which DBS exerts its therapeutic effects still remains unclear.

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Heat-related mortality in Mexico: A multi-scale spatial analysis of extreme heat effects and municipality-level vulnerability.

Environ Int

December 2024

Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA; Irset Institut de Recherche en Santé, Environnement et Travail, UMR-S 1085, Inserm, University of Rennes, EHESP, Rennes, France.

Understanding effects of extreme heat across diverse settings is critical as social determinants play an important role in modifying heat-related risks. We apply a multi-scale analysis to understand spatial variation in the effects of heat across Mexico and explore factors that are explaining heterogeneity. Daily all-cause mortality was collected from the Mexican Secretary of Health and municipality-specific extreme heat events were estimated using population-weighted temperatures from 1998 to 2019 using Daymet and WorldPop datasets.

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Improving PD-1 blockade plus chemotherapy for complete remission of lung cancer by nanoPDLIM2.

Elife

December 2024

UPMC Hillman Cancer Center, Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, United States.

Immune checkpoint inhibitors (ICIs) and their combination with other therapies such as chemotherapy, fail in most cancer patients. We previously identified the PDZ-LIM domain-containing protein 2 (PDLIM2) as a bona fide tumor suppressor that is repressed in lung cancer to drive cancer and its chemo and immunotherapy resistance, suggesting a new target for lung cancer therapy improvement. In this study, human clinical samples and data were used to investigate genetic and epigenetic changes in lung cancer.

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Background: Burnout is among the greatest challenges facing healthcare today. Healthcare providers have been found to experience burnout at significant rates, with COVID-19 exacerbating the challenge. Burnout in the healthcare setting has been associated with decreases in job satisfaction, productivity, professionalism, quality of care, and patient satisfaction, as well as increases in career choice regret, intent to leave, and patient safety incidents.

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Background: Glossopharyngeal neuralgia (GPN) is a rare condition typically manifesting as paroxysms of sharp, lancinating pain localized to the middle ear and auditory canal, base of the tongue, tonsillar fossa, and region just inferior to the angle of the mandible. Vascular compression is a common etiology, and microvascular decompression (MVD) has been established as a safe and efficacious treatment in adults. With the exception of one report of an adult patient undergoing the procedure for symptomatology that began in adolescence, there are no published cases of MVD for GPN in pediatric patients to the author's knowledge.

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The Impacts and Consequences of Sexually Transmitted Infections in the United States.

Sex Transm Dis

December 2024

Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.

Millions of people in the United States are affected by sexually transmitted infections (STIs) every year, with profound consequences for the individual, their community, and society at large. In this review, we aim to summarize the epidemiology of four STIs: C. trachomatis, N.

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Cellular plasticity is a hallmark function of cancer, but many of the underlying mechanisms are not well understood. In this study, we identify Caveolin-1, a scaffolding protein that organizes plasma membrane domains, as a context-dependent regulator of survival signaling in Ewing sarcoma (EwS). Single cell analyses reveal a distinct subpopulation of EwS cells, which highly express the surface marker CD99 as well as Caveolin-1.

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