Exploring the Relationships between Sex Hormones and Abdominal Muscle Area and Radiodensity in Postmenopausal Women: Insights from the Multi-Ethnic Study of Atherosclerosis.

The relationships between sex hormone levels and muscle composition in postmenopausal women remain underexplored. To address this gap, we conducted a cross-sectional observational study utilizing data from the Multi-Ethnic Study of Atherosclerosis. Our analysis included 682 postmenopausal women aged 45-84 years with complete data, with a mean age of 63.

Gonad-derived steroid hormones mediate a sex difference in the maturation of auditory encoding in the cochlea from adolescence to early adulthood in C57BL/6J mice.

Sexually mature females of multiple mammalian species were previously reported to have increased peripheral auditory sensitivity, often measured as higher auditory brainstem response (ABR) wave I amplitude compared to males. Here, we determined potential hormonal and genetic (i.e.

Moderate-to-Vigorous Physical Activity at any Dose Reduces All-Cause Dementia Risk Regardless of Frailty Status.

Objectives: Reaching the moderate-to-vigorous physical activity (MVPA) recommendations of 150 min/wk is difficult for older adults, particularly among those living with frailty and its associated risk of dementia. We examined the dose-response relationship between MVPA and dementia risk among at-risk persons living with and without frailty enrolled in the UK Biobank study.

Design: Survival analysis within a prospective cohort study.

International Expert-Based Consensus Definition, Classification Criteria, and Minimum Data Elements for Osteoradionecrosis of the Jaw: An Inter-Disciplinary Modified Delphi Study.

Purpose: Osteoradionecrosis of the jaw (ORNJ) is a severe iatrogenic disease characterized by bone death after radiation therapy (RT) to the head and neck. With over 9 published definitions and at least 16 classification systems, the true incidence and severity of ORNJ are obscured by lack of a standard for disease definition and severity assessment, leading to inaccurate estimation of incidence, reporting ambiguity, and likely under-diagnosis worldwide. This study aimed to achieve consensus on an explicit definition and phenotype of ORNJ and related precursor states through data standardization to facilitate effective diagnosis, monitoring, and multidisciplinary management of ORNJ.

Claudin 18.2 Expression in 1,404 Digestive Tract Adenocarcinomas including 1,175 Colorectal Carcinomas: Distinct Colorectal Carcinoma Subtypes are Claudin 18.2 Positive.

Claudin 18.2 (CLDN18.2) immunohistochemical expression can be used to select patients with gastric/gastroesophageal junction adenocarcinomas for zolbetuximab (IMAB362) therapy, a monoclonal antibody targeting CLDN18.

Lifespan cardiometabolic exposures are associated with midlife white matter microstructure: The Bogalusa Heart Study.

Introduction: Compartment model analysis of diffusion MRI data provides unique information on the microstructural properties of white matter. However, studies relating compartment model microstructural measures to longitudinal cardiometabolic health data are rare.

Methods: 130 cognitively healthy participants in the Bogalusa Heart Study completed diffusion MRI scans.

Individualized transfusion decisions to minimize adverse cardiovascular outcomes in patients with acute myocardial infarction and anemia.

Background: Risk-benefit tradeoffs between restrictive versus liberal red blood cell transfusion strategies may vary across individuals. This exploratory analysis aimed to derive and evaluate individualized treatment effects of defined transfusion strategies in patients with acute MI and anemia with the goal of minimizing adverse cardiovascular outcomes.

Methods: This study analyzed 3,447 (98.

Unveiling of Hydrogen Spillover Mechanisms on Tungsten Oxide Surfaces.

Hydrogen spillover is an important process in catalytic hydrogenation reactions, facilitating H activation and modulating surface chemistry of reducible oxide catalysts. This study focuses on the unveiling of platinum-induced hydrogen spillover on monoclinic tungsten trioxide (γ-WO), employing ambient pressure X-ray photoelectron spectroscopy, density functional theory calculations and microkinetic modeling to investigate the dynamic evolution of surface states at varied temperatures. At room temperature, hydrogen spillover results in the formation of W and hydrogen intermediates (hydroxyl species and adsorbed water), facilitated by Pt metal clusters.

Neighborhood-level socioeconomic disadvantage is associated with multiple cognitive domains in a community sample of older adults.

Greater neighborhood disadvantage is associated with poorer global cognition. However, less is known about the variation in the magnitude of neighborhood effects across individual cognitive domains and whether the strength of these associations differs by individual-level factors. The current study investigated these questions in a community sample of older adults ( = 166, mean age = 72.

- a probiotic gut commensal with contextual impact on immunity.

The gut microbiome plays a key role in human health, influencing various biological processes and disease outcomes. The historical roots of probiotics are traced back to Nobel Laureate Élie Metchnikoff, who linked the longevity of Bulgarian villagers to their consumption of sour milk fermented by Lactobacilli. His pioneering work led to the global recognition of probiotics as beneficial supplements, now a multibillion-dollar industry.

The use of noninvasive positive pressure ventilation for severe asthma: a systematic review and meta-analysis of randomized controlled trials with trial sequential analysis.

Introduction: To evaluate the effectiveness of noninvasive positive pressure ventilation (NPPV) versus standard therapy in severe asthma exacerbations through meta-analysis.

Methods: Nine randomized controlled trials (344 patients) were analyzed from inception to August 2024. Primary outcomes included respiratory rate, forced expiratory volume in first second (FEV1), and oxygen saturation (SpO2).

Tucatinib and trastuzumab in HER2-mutated metastatic breast cancer: a phase 2 basket trial.

Human epidermal growth factor receptor 2 (HER2, also known as ERBB2) signaling promotes cell growth and differentiation, and is overexpressed in several tumor types, including breast, gastric and colorectal cancer. HER2-targeted therapies have shown clinical activity against these tumor types, resulting in regulatory approvals. However, the efficacy of HER2 therapies in tumors with HER2 mutations has not been widely investigated.

Dynamical constraints on neural population activity.

The manner in which neural activity unfolds over time is thought to be central to sensory, motor and cognitive functions in the brain. Network models have long posited that the brain's computations involve time courses of activity that are shaped by the underlying network. A prediction from this view is that the activity time courses should be difficult to violate.

Early-Onset Seizures After Orthotopic Liver Transplantation: A Single-Center Retrospective Study.

Background: After encephalopathy, epileptic seizures (ES) are the second most common neurologic complication after orthotopic liver transplantation (OLT) and may announce a disabling/fatal neurologic disease.

Methods: In this retrospective study, we collected clinical information from patients who underwent OLT at our institution and analyzed outcomes and potential risk factors for developing ES after OLT.

Results: Fourteen of our 376 patients (3.

Complementary Organization of Mouse Driver and Modulator Cortico-Thalamo-Cortical Circuits.

Corticocortical (CC) projections in the visual system facilitate hierarchical processing of sensory information. In addition to direct CC connections, indirect cortico-thalamo-cortical (CTC) pathways through the pulvinar nucleus of the thalamus can relay sensory signals and mediate cortical interactions according to behavioral demands. While the pulvinar connects extensively to the entire visual cortex, it is unknown whether transthalamic pathways link all cortical areas or whether they follow systematic organizational rules.

Advances in the understanding and therapeutic manipulation of cancer immune responsiveness: a Society for Immunotherapy of Cancer (SITC) review.

Cancer immunotherapy-including immune checkpoint inhibition (ICI) and adoptive cell therapy (ACT)-has become a standard, potentially curative treatment for a subset of advanced solid and liquid tumors. However, most patients with cancer do not benefit from the rapidly evolving improvements in the understanding of principal mechanisms determining cancer immune responsiveness (CIR); including patient-specific genetically determined and acquired factors, as well as intrinsic cancer cell biology. Though CIR is multifactorial, fundamental concepts are emerging that should be considered for the design of novel therapeutic strategies and related clinical studies.

Skull base chordomas presenting with abducens nerve deficits: clinical characteristics and predictive factors for deficit improvement or resolution.

Objective: Skull base chordomas (SBCs) often present with cranial nerve (CN) VI deficits. Studies have not assessed the prognosis and predictive factors for CN VI recovery among patients presenting with CN VI deficits.

Methods: The medical records of patients who underwent resection for primary chordoma from 2001 to 2020 were reviewed.

Mucin Colocalizes with Influenza Virus and Preserves Infectivity in Deposited Model Respiratory Droplets.

The stability of influenza virus in respiratory particles varies with relative humidity (RH) and protein content. This study investigated the decay, or loss of infectivity, of influenza A virus (IAV) in 1-μL respiratory droplets deposited on a surface with varying concentrations of mucin, one of the most abundant proteins in respiratory mucus, and examined the localization of virions within droplets. IAV remained stable at 0.

Dementia and Emergency Department Use in Older Adults With Systemic Lupus Erythematosus: An Administrative Claims Data Analysis of Medicare Beneficiaries.

Background/objective: Systemic lupus erythematosus (SLE) is associated with increased dementia risk. Whether this association is present among older adults with SLE is unclear. Further, whether individuals with concomitant SLE and dementia are at increased risk of emergency department (ED) use has not been explored.

Exploring the relationship between melanopsin gene variants, sleep, and markers of brain health.

Introduction: Melanopsin is a photopigment with roles in mediating sleep and circadian-related processes, which are often disrupted in Alzheimer's disease (AD). Melanopsin also impacts cognition and synaptogenesis. This study investigated the associations between melanopsin genetic variants, sleep, and markers of brain health.

Prioritizing post-COVID-19 health research in sub-Saharan Africa: A modified Delphi study for future pandemic.

Background: The COVID-19 pandemic exposed weaknesses in healthcare systems and disparities in healthcare access across sub-Saharan Africa (SSA). The insights of frontline healthcare professionals (HCPs), and healthcare researchers involved with the response to COVID in SSA are crucial to ensuring that health systems are optimally prepared for the next pandemic threat. Nonetheless, there is limited consensus as to what are the clinical and public health research priorities necessary to ensure that SSA is optimally prepared and responsive to future pandemics.

Coding intensity variation in Medicare Advantage.

Enrollment in Medicare Advantage (MA) plans rose to over 50% of eligible Medicare patients in 2023. Payments to MA plans incorporate risk scores that are largely based on patient diagnoses from the prior year, which incentivizes MA plans to code diagnoses more intensively. We estimated coding inflation rates for individual MA contracts using a method that allows for differential selection into contracts based on patient health.