Cellular Function of a Biomolecular Condensate Is Determined by Its Ultrastructure.

Biomolecular condensates play key roles in the spatiotemporal regulation of cellular processes. Yet, the relationship between atomic features and condensate function remains poorly understood. We studied this relationship using the polar organizing protein Z (PopZ) as a model system, revealing how its material properties and cellular function depend on its ultrastructure.

IMPACT-ICU feasibility study: pragmatic mixed-methods randomised controlled trial of a follow-up care intervention for survivors of critical illness and caregivers.

Introduction: Survivors of critical illness and their caregivers are at risk for long-term cognitive, physical and psychiatric impairments known as post-intensive care syndrome (PICS) and PICS-family, respectively. This study will assess the feasibility of a randomised controlled trial (RCT) evaluating an intensive care unit (ICU) follow-up care bundle versus standard-of-care for ICU patients and their caregivers.

Methods And Analysis: This is a single-centre feasibility study.

Corrugated waveguide with matched phase and group velocities: an extended regime of wave-beam interaction.

We show that it is possible to design corrugated waveguides where phase and group velocities coincide at an inflection point of the dispersion relation, thereby allowing an extended regime of interaction with a charge particle beam. This provides a basis for designing travelling slow-wave structures with a broadband interaction between relativistic charged particle beams and propagating terahertz waves allowing an energy exchange between beam and wave, amplifying terahertz radiation. We employ Fourier-Mathieu expansion, which gives approximate analytic solutions to Maxwell equations in a corrugated waveguide with periodically undulating cross-section.

Reentrant DNA shells tune polyphosphate condensate size.

The inorganic biopolymer polyphosphate (polyP) occurs in all domains of life and affects myriad cellular processes. A longstanding observation is polyP's frequent proximity to chromatin, and, in many bacteria, its occurrence as magnesium (Mg)-enriched condensates embedded in the nucleoid region, particularly in response to stress. The physical basis of the interaction between polyP, DNA and Mg, and the resulting effects on the organization of the nucleoid and polyP condensates, remain poorly understood.

The Role of Inclusion in Collaborative Learning.

Collaborative methods for learning such as team-based learning, case-based learning, and problem-based learning have become leading methods for active learning within the field of health professions education. Critical thinking and exposure to diverse perspectives within a group are highlighted as important benefits of team-based learning. However, without consideration of the potential socioemotional, behavioral, and team dynamic challenges associated with this format of learning, the tenets which support a welcoming learning community can begin to deteriorate.

Low Prevalence of Reporting of Participant Race and Ethnicity in Gastroenterology Research Publications.

Introduction: Empirical information on the evolution of reporting race and ethnicity information in gastroenterology research is lacking. To facilitate understanding of where improvements are needed to increase diversity, equity, and inclusion in gastroenterology research, we aimed to evaluate reporting and representation by race and ethnicity in studies published in flagship US-based gastroenterology journals over 20 years.

Methods: We manually reviewed reporting and representation by race and ethnicity in all original research articles published in the American Journal of Gastroenterology and Gastroenterology in 2000, 2010, and 2020.

Neuron loss in the brain starts in childhood, increases exponentially with age and is halted by GM-CSF treatment in Alzheimer's disease.

Aging increases the risk of neurodegeneration, cognitive decline, and Alzheimer's disease (AD). Currently no means exist to measure neuronal cell death during life or to prevent it. Here we show that cross-sectional measures of human plasma proteins released from dying/damaged neurons (ubiquitin C-terminal hydrolase-L1/UCH-L1 and neurofilament light/NfL) become exponentially higher from age 2-85; UCH-L1 rises faster in females.

Secreted antigen A peptidoglycan hydrolase is essential for cell separation and priming of immune checkpoint inhibitor therapy.

is a microbiota species in humans that can modulate host immunity (Griffin and Hang, 2022), but has also acquired antibiotic resistance and is a major cause of hospital-associated infections (Van Tyne and Gilmore, 2014). Notably, diverse strains of produce SagA, a highly conserved peptidoglycan hydrolase that is sufficient to promote intestinal immunity (Rangan et al., 2016; Pedicord et al.

The Diagnostic Utility of Ultrasound and Electrodiagnostic Studies in The Young and Old.

Purpose: Carpal tunnel syndrome is the most common compressive neuropathy. The diagnostic parameters currently used for the general adult population may not be valid in elderly or younger cohorts. The purpose of this study is to determine the diagnostic accuracy of nerve conduction studies (NCS) and ultrasound (US) in different age groups utilizing the 6-item Carpal tunnel syndrome (CTS) symptoms scale (CTS-6) as the reference standard.

A chromosome-scale fishing cat reference genome for the evaluation of potential germline risk variants.

The fishing cat, Prionailurus viverrinus, faces a population decline, increasing the importance of maintaining healthy zoo populations. Unfortunately, zoo-managed individuals currently face a high prevalence of transitional cell carcinoma (TCC), a form of bladder cancer. To investigate the genetics of inherited diseases among captive fishing cats, we present a chromosome-scale assembly, generate the pedigree of the zoo-managed population, reaffirm the close genetic relationship with the Asian leopard cat (Prionailurus bengalensis), and identify 7.

Nebulized Furosemide for Pulmonary Inflammation in Intubated Patients With COVID-19: A Phase 2 Randomized Controlled Double-Blind Study.

Objectives: Respiratory failure secondary to COVID-19 is associated with morbidity and mortality. Current anti-inflammatory therapies are effective but are given systemically and have significant side effects. Furosemide has anti-inflammatory properties, can be administered by inhalation, and is inexpensive.

Age, Race, Ethnicity, and Sex of Participants in Clinical Trials Focused on Chronic Pain.

There is limited data on equitable inclusion in chronic pain trials. We aimed to 1) identify the frequency of reporting age, race, ethnicity, and sex in clinical trials targeting chronic pain, and 2) compare sociodemographic representation to the United States (US) population. We examined US-based intervention trials for chronic pain initiated between 2007 and 2021 and registered on ClinicalTrials.

Ceragenin-coated endotracheal tubes for the reduction of ventilator-associated pneumonia: a prospective, longitudinal, cross-over, interrupted time, implementation study protocol (CEASE VAP study).

Background: Critically ill patients are at high risk of acquiring ventilator-associated pneumonia (VAP), which occurs in approximately 20% of mechanically ventilated patients. VAP results either from aspiration of pathogen-contaminated oropharyngeal secretions or contaminated biofilms that form on endotracheal tubes (ETTs) after intubation. VAP results in increased duration of mechanical ventilation, increased intensive care unit and hospital length of stay, increased risk of death and increased healthcare costs.

Differences in provider recommendations for Black/African American and White patients with irritable bowel syndrome.

Background: Health disparities and barriers to equitable care for patients from racial and ethnic minority backgrounds are common. We sought to evaluate disparities in management recommendations among Black/African American (AA) patients seeking care for IBS.

Methods: We assembled a retrospective cohort of patients at two tertiary care centers who were self-identifying as Black/AA and attended a first gastroenterology consult for IBS.

Secreted antigen A peptidoglycan hydrolase is essential for cell separation and priming of immune checkpoint inhibitor therapy.

is a microbiota species in humans that can modulate host immunity, but has also acquired antibiotic resistance and is a major cause of hospital-associated infections. Notably, diverse strains of produce SagA, a highly conserved peptidoglycan hydrolase that is sufficient to promote intestinal immunity and immune checkpoint inhibitor antitumor activity. However, the functions of SagA in were unknown.

Differences in Management and Outcomes of Older and Younger Adults with Acute Severe Ulcerative Colitis.

Background: Older adults with ulcerative colitis [UC] have greater morbidity than younger adults. The goal of this study was to investigate differences in the management and outcomes of older and younger patients hospitalised with severe UC.

Methods: We conducted a retrospective cohort study of patients hospitalised for acute severe ulcerative colitis requiring intravenous steroids.

Acute Herpes Simplex Virus Laryngitis Presenting as Airway Obstruction Post Influenza: A Viral Pneumonia.

Herpes simplex virus (HSV) typically presents with mucocutaneous or genital ulcerations but can also manifest with central nervous system involvement and occasionally other visceral or mucosal sites. However, laryngeal involvement almost exclusively presents in infants and children. Very few confirmed adult cases have been reported.

Gross and Histologic Placental Abnormalities Associated With Neonatal Hypoxic-Ischemic Encephalopathy.

Objective: To elucidate particular placental pathology findings that are associated with hypoxic ischemic encephalopathy (HIE) and determine which patterns are associated with adverse fetal/neonatal outcomes.

Study Design: Multi-institutional retrospective case-control study of newborns with HIE (2002-2022) and controls. Four perinatal pathologists performed gross and histologic evaluation of placentas of cases and controls.