Human P2X4 receptor gating is modulated by a stable cytoplasmic cap and a unique allosteric pocket.

P2X receptors (P2XRs) are adenosine 5'-triphosphate (ATP)-gated ion channels comprising homomeric and heteromeric trimers of seven subtypes (P2X1-P2X7) that confer different rates of desensitization. The helical recoil model of P2XR desensitization proposes stability of the cytoplasmic cap sets the rate of desensitization, but timing of its formation is unclear for slow-desensitizing P2XRs. We report cryo-electron microscopy structures of full-length wild-type human P2X4 receptor in apo closed, antagonist-bound inhibited, and ATP-bound desensitized states.

Unequal Access and Overall Scarcity of Apical Suspension in Native Tissue Prolapse Repair.

Importance: Evaluation of racial and ethnic differences in apical suspension during prolapse repair is crucial for equitable gynecological care.

Objective: The objective was to assess racial and ethnic disparities in apical suspension during native tissue prolapse repair.

Study Design: We analyzed data from the 2019 Healthcare Cost and Utilization Project National Inpatient Sample and Nationwide Ambulatory Surgery Sample, using Current Procedural Terminology and International Classification of Diseases, Tenth Revision, codes.

Accuracy and Performance Characteristics of Administrative Codes for the Diagnosis of Autoinflammatory Syndromes: A Discovery and Validation Study.

Objective: The aim of this study was to evaluate and validate the accuracy and performance characteristics of administrative codes in diagnosing autoinflammatory syndromes (AISs).

Methods: We identified potential AIS patients from the electronic medical records at the University of Iowa Hospital and Clinics and the Stead Family Children's Hospital using a screening filter based on the 10th edition of the International Classification of Diseases (ICD-10) codes and interleukin-1 antagonists. Diagnostic criteria for adult-onset Still disease, systemic juvenile idiopathic arthritis, Behçet disease (BD), familial Mediterranean fever (FMF), cryopyrin-associated periodic syndrome (CAPS), and SAPHO (synovitis, acne, pustulosis, hyperostosis, and osteitis) syndrome and chronic nonbacterial osteomyelitis (SAPHO-CNO) were reviewed for each patient.

Thought-Feeling Accuracy in Person Perception and Metaperception: An Integrative Perspective.

People often want to know what their interaction partners are thinking. How accurate are they, what information do they use, what predicts how accurate they will be, and does accuracy matter? We organize our review of thought-feeling accuracy, defined as the accuracy of individuals' judgments about the content of another person's thoughts and feelings in live interaction, around these questions. At the same time, we argue that often people are especially interested in what others are thinking about them, such that research on the accuracy of individuals' metaperceptions regarding others' views of them is highly relevant to understanding thought-feeling accuracy more broadly construed.

Sudden Cardiac Arrest Associated with Hemodialysis: A Community-Based Study.

Background: Individuals with end-stage renal disease may be at increased risk of sudden cardiac arrest (SCA) associated with dialysis therapy. However, community-based studies with comprehensive adjudication of SCA are lacking.

Methods: We conducted a community-based study using a case-case study design in a US population of ≈1 million.

Adjusting for bias due to measurement error in functional quantile regression models with error-prone functional and scalar covariates.

Wearable devices enable the continuous monitoring of physical activity (PA) but generate complex functional data with poorly characterized errors. Most work on functional data views the data as smooth, latent curves obtained at discrete time intervals with some random noise with mean zero and constant variance. Viewing this noise as homoscedastic and independent ignores potential serial correlations.

Virtual assessment of internal rotation in reverse shoulder arthroplasty based on statistical shape models of scapular size.

Background: The purpose of this study was to assess impingement-free internal rotation (IR) in a virtual reverse shoulder arthroplasty simulation using a Statistical Shape Model based on scapula size.

Methods: A database of over 10,000 scapulae utilized for preoperative planning for shoulder arthroplasty was analyzed with a Statistical Shape Model to obtain 5 scapula sizes including the mean and 2 standard deviations. For each scapula model, one glenosphere size (33-42 mm) was selected as the best fit based on consensus among 3 shoulder surgeons.

Outcome Measures to Evaluate Functional Recovery in Survivors of Respiratory Failure: A Scoping Review.

Background: Respiratory failure is a life-threatening condition affecting millions of individuals in the United States annually. Survivors experience persistent functional impairments, decreased quality of life, and cognitive impairments. However, no established standard exists for measuring functional recovery among survivors of respiratory failure.

Seasonal productivity of the equatorial Atlantic shaped by distinct wind-driven processes.

The eastern equatorial Atlantic hosts a productive marine ecosystem that depends on upward supply of nitrate, the primary limiting nutrient in this region. The annual productivity peak, indicated by elevated surface chlorophyll levels, occurs in the Northern Hemisphere summer, roughly coinciding with strengthened easterly winds. For enhanced productivity in the equatorial Atlantic, nitrate-rich water must rise into the turbulent layer above the Equatorial Undercurrent.

An Observational Study to Determine the Prevalence of COVID-19 Among Hospitalized Patients With Multidrug-Resistant Enterobacterales Infections and Clinical Outcomes, 10 US Sites, 2020--2022.

Background: We investigated hospitalized carbapenem-resistant Enterobacterales (CRE) and extended-spectrum β-lactamase-producing Enterobacterales (ESBL-E) cases with and without COVID-19, as identified through Emerging Infections Program surveillance in 10 sites from 2020 to 2022.

Methods: We defined a CRE case as the first isolation of , complex, , , , or resistant to any carbapenem. We defined an ESBL-E case as the first isolation of , , or resistant to any third-generation cephalosporin and nonresistant to all carbapenems tested.

Single-Larva RNA Sequencing Reveals That Red Sea Urchin Larvae Are Vulnerable to Co-Occurring Ocean Acidification and Hypoxia.

Anthropogenic carbon dioxide emissions have been increasing rapidly in recent years, driving pH and oxygen levels to record low concentrations in the oceans. Eastern boundary upwelling systems such as the California Current System (CCS) experience exacerbated ocean acidification and hypoxia (OAH) due to the physical and chemical properties of the transported deeper waters. Research efforts have significantly increased in recent years to investigate the deleterious effects of climate change on marine species, but have not focused on the impacts of simultaneous OAH stressor exposure.

Impact of an Oregon health policy aimed at strengthening adolescent linkage to outpatient mental health care from the emergency department.

Background: Oregon introduced a state policy, HB 3090, on October 6, 2017, which increased requirements on emergency departments (EDs) to improve transitions to outpatient mental health care. The objective of this study was to examine the policy's impact among low-income adolescent patients who face severe barriers to follow-up.

Methods: This was a retrospective cohort study of visits by Medicaid enrollees ages 14-18 presenting to any Oregon ED for a mental health concern between January 1, 2016, and December 31, 2019.

A Retrospective Review of Oral N-Acetylcysteine for Habit-Driven Cutaneous Disorders.

Oral N-acetylcysteine (NAC) has shown efficacy for debilitating habit-driven and neuropsychiatric disorders in small, mostly adult studies. We retrospectively evaluated the therapeutic use and safety of oral NAC in 93 children from the Children's Hospital of Philadelphia. This study supports the use of oral NAC for habit-driven skin, hair, and nail abnormalities in pediatric patients.

The Relationship between Various Measures of Perinatal Quality.

Objective: To examine the correlations between pairs of maternal, infant, and maternal-infant dyad quality measures to provide a comprehensive assessment of perinatal care.

Study Design: In a retrospective cohort study using birth and fetal death certificates linked to hospital discharge data from Michigan, Oregon, Pennsylvania, and South Carolina (2016-2018), we examined correlations between pairs of maternal, infant, and maternal-infant dyad quality measures. Maternal quality measures included nulliparous term singleton vertex (NTSV) cesarean birth, non-transfusion severe maternal morbidity (SMM), and a composite maternal outcome.

Double Trouble for Native Species Under Climate Change: Habitat Loss and Increased Environmental Overlap With Non-Native Species.

Climate change and biological invasions are affecting natural ecosystems globally. The effects of these stressors on native species' biogeography have been studied separately, but their combined effects remain overlooked. Here, we develop a framework to assess how climate change influences both the range and niche overlap of native and non-native species using ecological niche models.

Better Outcomes for Ovarian Cancer Associated With the Detection of Anti-EBV TCR CDR3s: Potential Relevance to Diffuse Large B-Cell Lymphoma.

Objectives: Given the ongoing challenges regarding the specific roles of viral infections in cancer etiology, or as cancer co-morbidities, this study assessed potential associations between anti-viral, T-cell receptor (TCR) complementarity domain region-3 (CDR3s), and clinical outcomes for ovarian cancer.

Methods: TCR CDR3s were isolated from ovarian cancer specimens for a determination of which patients had anti-viral CDR3s and whether those patients had better or worse outcomes.

Results: Analyses revealed that patients with exact matches of anti-Epstein-Barr virus (EBV) CDR3 amino acid sequences exhibited better outcomes for both overall and disease-specific survival.

Assessment of the Quality of Root Canal Fillings-An Ex-Vivo Comparison of CBCT Scans, Conventional Intraoral Sensors, and a Novel Photon-Counting Sensor.

Objectives: To compare a novel photon-counting sensor, two CBCT protocols and two CMOS sensors on the detection of gaps between a gutta-percha cone and root canal walls.

Methods: Twenty-five mandibular incisors were prepared to 45/.04 (size/taper) at working length.

Tubulin Acetylation Enhances Microtubule Stability in Trabecular Meshwork Cells Under Mechanical Stress.

Purpose: To study the roles of tubulin acetylation and cyclic mechanical stretch (CMS) in trabecular meshwork (TM) cells and their impact on outflow pathway physiology and pathology.

Methods: Primary TM cell cultures were subjected to CMS (8% elongation, 24 hours), and acetylated α-tubulin at lysine 40 (Ac-TUBA4) was assessed by western blotting and immunofluorescence. Enzymes regulating tubulin acetylation were identified via siRNA-mediated knockdowns of ATAT1, HDAC6, and SIRT2.

Kaposi's sarcoma-associated herpesvirus (KSHV) gB dictates a low-pH endocytotic entry pathway as revealed by a dual-fluorescent virus system and a rhesus monkey rhadinovirus expressing KSHV gB.

Interaction with host cell receptors initiates internalization of Kaposi's sarcoma-associated herpesvirus (KSHV) particles. Fusion of viral and host cell membranes, which is followed by release of the viral capsid into the cytoplasm, is executed by the core fusion machinery composed of glycoproteins H (gH), L (gL), and B (gB), that is common to all herpesviruses. KSHV infection has been shown to be sensitive to inhibitors of vacuolar acidification, suggestive of low pH as a fusion trigger.

Rural-Urban Disparities in State-Level Diabetes Prevalence Among US Adults, 2021.

Introduction: We assessed state-level disparities in diabetes prevalence among adults in rural and urban areas in the United States.

Methods: We estimated state-specific diabetes prevalence in rural and urban areas in 41 states with applicable data from the 2021 Behavioral Risk Factor Surveillance System. Rural areas were defined based on the 2013 National Center for Health Statistics Urban-Rural Classification Scheme.

New therapies to treat cardiac amyloidosis.

Purpose Of Review: Review advancements in therapies for transthyretin (ATTR-CM) and immunoglobulin light chain (AL-CM) cardiac amyloidosis.

Recent Findings: In ATTR-CM, tafamidis remains the cornerstone therapy, with Food and Drug Administration (FDA) approval for over 5 years. Acoramidis, another transthyretin stabilizer, has very recently been FDA-approved following positive results in the ATTRibute-CM trial.

Electrical Impedance Tomography meets Reduced Order Modelling: a framework for faster and more reliable electrical conductivity estimations.

Objective: Inclusion of individualised electrical conductivities of head tissues is crucial for the accuracy of electrical source imaging techniques based on electro/magnetoencephalography and the efficacy of transcranial electrical stimulation. Parametric electrical impedance tomography (pEIT) is a method to cheaply and non-invasively estimate them using electrode arrays on the scalp to apply currents and measure the resulting potential distribution. Conductivities are then estimated by iteratively fitting a forward model to the measurements, incurring a prohibitive computational cost that is generally lowered at the expense of accuracy.

Nasal CPAP increases alveolar number in a rhesus monkey model of moderate prematurity.

Rationale: Most premature human infants are born in the moderate to late preterm (MLP) range, ≥30 to <37 weeks gestation and demonstrate increased incidence of wheeze and respiratory illness as they age. Animal models suggest that mechanical lung distention stimulates lung growth and alveolar development. To determine if nasal continuous positive airway pressure (nCPAP) influences MLP infant lung development, we developed a rhesus monkey model of moderate prematurity, randomized to 9 days of nCPAP or sham nCPAP.