Random Survival Forest Machine Learning for the Prediction of Cardiovascular Events Among Patients With a Measured Lipoprotein(a) Level: A Model Development Study.

Background: Established risk models may not be applicable to patients at higher cardiovascular risk with a measured Lp(a) (lipoprotein[a]) level, a causal risk factor for atherosclerotic cardiovascular disease.

Methods: This was a model development study. The data source was the Nashville Biosciences Lp(a) data set, which includes clinical data from the Vanderbilt University Health System.

Assessment of YouTube as an online educational tool in teaching laparoscopic Roux-en-Y gastric bypass: A LAP-VEGaS study.

Background: General surgery residents frequently access YouTube® for educational walkthroughs of surgical procedures. The aim of this study is to evaluate the educational quality of YouTube® video walkthroughs on Laparoscopic Roux-en-Y gastric bypass (LRYGB) using a validated video assessment tool.

Methods: A retrospective review of YouTube® videos was conducted for "laparoscopic Roux-en-Y gastric bypass", "laparoscopic RYGB", and "laparoscopic gastric bypass.

A Cross-sectional Survey of Physicians to Understand Biomarker Testing and Treatment Patterns in Patients with Prostate Cancer in the USA, EU5, Japan, and China.

Background And Objective: Treatment landscape in advanced prostate cancer (PC) is evolving. There is limited understanding of the factors influencing decision-making for genetic/genomic testing and the barriers to recommending testing and treatment in international real-world clinical practice following the approval of poly-adenosine diphosphate-ribose polymerase inhibitors (PARPi) for metastatic castration-resistant PC (mCRPC). This work aims to assess genetic/genomic testing patterns and methods, including for homologous recombination repair mutation (HRRm), and treatment decisions among physicians caring for patients with PC across the USA, Europe, and Asia.

Plasma thrombin generation kinetics in trauma patients across the age spectrum.

Background: Injured patients have early changes to normal coagulation that can impact long term risk for thrombotic complications. There is little known about how age impacts biomarkers of coagulation after traumatic injury. In this pilot study, we aimed to characterize thrombin generation kinetics, a known predictor of venous thromboembolism, in trauma patients across the age spectrum.

Arv1; a "Mover and Shaker" of Subcellular Lipids.

The composition of eukaryotic membranes reflects a varied but precise amalgam of lipids. The genetic underpinning of how such diversity is achieved or maintained is surprisingly obscure, despite its clear metabolic and pathophysiological impact. The Arv1 protein is represented in all eukaryotes and was initially identified in the model eukaryote as a candidate transporter of lipids from the endoplasmic reticulum.

From basic scientific research to the development of new drugs for pulmonary arterial hypertension: insights from activin-targeting agents.

Pulmonary arterial hypertension (PAH) is a severe disorder of the pulmonary vasculature leading to right ventricular failure. This pulmonary vascular remodelling leads to increased pulmonary vascular resistance and high pulmonary arterial pressures. Despite the development of new therapies, many patients continue to experience significant morbidity and mortality.

Efferent compared to afferent neural substrates of the vergence eye movement system evoked via fMRI.

Introduction: The vergence neural system was stimulated to dissect the afferent and efferent components of symmetrical vergence eye movement step responses. The hypothesis tested was whether the afferent regions of interest would differ from the efferent regions to serve as comparative data for future clinical patient population studies.

Methods: Thirty binocularly normal participants participated in an oculomotor symmetrical vergence step block task within a functional MRI experiment compared to a similar sensory task where the participants did not elicit vergence eye movements.

Effect of Food Intake or Coadministration With an Acid-Reducing Agent on Lenacapavir Pharmacokinetics Following Oral Administration.

Lenacapavir is a potent, long-acting HIV-1 capsid inhibitor used in combination with other antiretrovirals to treat HIV-1 infection. The pharmacokinetics of orally administered drugs may be affected by food intake or coadministration of acid-reducing agents (ARA). Two Phase 1 studies were conducted on healthy participants to evaluate the effect of food and the impact of the histamine H-receptor antagonist famotidine in parallel cohorts.

Coping is a moderator of relationships between cognitive fatigue and cognitive variability in multiple sclerosis.

Objective: Mean levels of cognitive functioning typically do not show an association with self-reported cognitive fatigue in persons with multiple sclerosis (PwMS), but some studies indicate that has an association with cognitive fatigue. Additionally, coping has been shown to be a powerful moderator of some outcomes in multiple sclerosis (MS). To date, however, coping has not been considered as a possible moderator of the relationship between cognitive fatigue and cognitive in MS.

Sleep quality and cognitive functioning among Chinese older adults living in the US: a mixed-effects model analysis.

Background: Racial and ethnic disparities in sleep quality and cognitive health are increasingly recognized, yet little is understood about their associations among Chinese older adults living in the United States. This study aims to examine the relationships between sleep health and cognitive functioning in this population, utilizing data from the Population Study of Chinese Elderly in Chicago (PINE).

Methods: This observational study utilized a two-wave panel design as part of the PINE, including 2,228 participants aged 65 years or older who self-identified as Chinese.

Nationwide trends in diagnosed sedative, hypnotic or anxiolytic use disorders in adolescents and young adults enrolled in Medicaid: 2001-2019.

Background And Aim: Sedative, hypnotic or anxiolytic use disorders (SHA-UD) are defined by significant impairment or distress caused by recurrent sedative, hypnotic or anxiolytic use. This study aimed to measure trends in the prevalence of SHA-UD diagnoses in adolescent and young adult US Medicaid enrollees from 2001 to 2019.

Design: Annual, cross-sectional study, 2001-2019.

Genomics yields biological and phenotypic insights into bipolar disorder.

Bipolar disorder is a leading contributor to the global burden of disease. Despite high heritability (60-80%), the majority of the underlying genetic determinants remain unknown. We analysed data from participants of European, East Asian, African American and Latino ancestries (n = 158,036 cases with bipolar disorder, 2.

FABP4 as a therapeutic host target controlling SARS-CoV-2 infection.

Host metabolic fitness is a critical determinant of infectious disease outcomes. Obesity, aging, and other related metabolic disorders are recognized as high-risk disease modifiers for respiratory infections, including coronavirus infections, though the underlying mechanisms remain unknown. Our study highlights fatty acid-binding protein 4 (FABP4), a key regulator of metabolic dysfunction and inflammation, as a modulator of SARS-CoV-2 pathogenesis, correlating strongly with disease severity in COVID-19 patients.

Microbial carbon oxidation in seawater below the hypoxic threshold.

Global oxygen minimum zones (OMZs) often reach hypoxia but seldom reach anoxia. Recently it was reported that Michaelis Menten constants (K) of oxidative enzymes are orders of magnitude higher than respiratory K values, and in the Hypoxic Barrier Hypothesis it was proposed that, in ecosystems experiencing falling oxygen, oxygenase enzyme activities become oxygen-limited long before respiration. We conducted a mesocosm experiment with a phytoplankton bloom as an organic carbon source and controlled dissolved oxygen (DO) concentrations in the dark to determine whether hypoxia slows carbon oxidation and oxygen decline.

Local polar order controls mechanical stress and triggers layer formation in Myxococcus xanthus colonies.

Colonies of the social bacterium Myxococcus xanthus go through a morphological transition from a thin colony of cells to three-dimensional droplet-like fruiting bodies as a strategy to survive starvation. The biological pathways that control the decision to form a fruiting body have been studied extensively. However, the mechanical events that trigger the creation of multiple cell layers and give rise to droplet formation remain poorly understood.

Combined Anteversion in Healthy Hips: Should there be a single implant alignment target in total hip arthroplasty?

Background: The ideal anteversion at which the acetabular and femoral components for a total hip arthroplasty (THA) should be implanted is still a subject of debate. One alignment philosophy being explored is restoration of individual constitutional femoral and acetabular anteversion. This study aimed to measure combined anteversion in a healthy hip population and understand the expected phenotypes and ranges for constitutional hip alignment.

Neoadjuvant Chemotherapy for Newly Diagnosed, Advanced Ovarian Cancer: ASCO Guideline Update.

Purpose: To provide updated guidance regarding neoadjuvant chemotherapy (NACT) and primary cytoreductive surgery (PCS) among patients with stage III-IV epithelial ovarian, fallopian tube, or primary peritoneal cancer (epithelial ovarian cancer [EOC]).

Methods: A multidisciplinary Expert Panel convened and updated the systematic review.

Results: Sixty-one studies form the evidence base.

Interprogram Differences in Core General, Core Plastic, and Plastic Surgery-Adjacent Training.

Background: Plastic surgery training continues to evolve with integrated residents spending more time in plastic versus general surgery. Herein, we provide an updated description of interprogram differences in core general, core plastic, and plastic surgery-adjacent training curricula.

Methods: We obtained rotation schedules from US plastic surgery residency websites or program coordinators for AY2021-2022.

Echocardiographic Updates in the Assessment of Cardiomyopathy.

Purpose Of Review: This review aims to provide an updated overview of the role of echocardiography in the assessment of cardiomyopathies, highlighting recent findings and technological advancements.

Recent Findings: Over the past few years, significant advancements in echocardiographic techniques have improved diagnostic accuracy and provided important prognostic value in the assessment of cardiomyopathies. Cardiomyopathy is a group of diseases affecting the heart muscle.

Immunogenicity of the 9-valent human papillomavirus vaccine: Post hoc analysis from five phase 3 studies.

Post hoc analyses of 9-valent human papillomavirus (9vHPV) vaccine immunogenicity were conducted in five Phase 3 studies that enrolled males. Month 7 antibody geometric mean titers (GMTs) after three 9vHPV vaccine doses were analyzed in 10,024 males/females aged 16-26 years from studies 001 (NCT00543543), 002 (NCT00943722), 003 (NCT01651949), and 020 (NCT02114385). Covariates considered were age, gender, sexual orientation, region of residence, and race.

Masquelet Inspired in Vivo Engineered Extracellular Matrix as Functional Periosteum for Bone Defect Repair and Reconstruction.

The Masquelet technique that combines a foreign body reaction (FBR)-induced vascularized tissue membrane with staged bone grafting for reconstruction of segmental bone defect has gained wide attention in Orthopedic surgery. The success of Masquelet hinges on its ability to promote formation of a "periosteum-like" FBR-induced membrane at the bone defect site. Inspired by Masquelet's technique, here a novel approach is devised to create periosteum mimetics from decellularized extracellular matrix (dECM), engineered in vivo through FBR, for reconstruction of segmental bone defects.