160,931 results match your criteria: "University of Pittsburgh; Angiogenesis Foundation; and Professional Education and Research Institute.[Affiliation]"

Severe Maternal Morbidity Associated With Chronic Hypertension, Preeclampsia, and Gestational Hypertension.

JAMA Netw Open

January 2025

Magee-Womens Research Institute, Department of Obstetrics, Gynecology and Reproductive Sciences, Epidemiology and Clinical and Translational Research, University of Pittsburgh, Pittsburgh, Pennsylvania.

Importance: Chronic hypertension and preeclampsia are leading risk enhancers for maternal-neonatal morbidity and mortality. Severe maternal morbidity (SMM) indicators include heart, kidney, and liver disease, but studies have not excluded patients with preexisting diseases that define SMM. Thus, SMM risks for uncomplicated chronic hypertension specific to preeclampsia remain unclear.

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Don't Sleep on Vitamin D: Vitamin D is Associated with Sleep Variability in Apparently Healthy Adults.

Am J Physiol Regul Integr Comp Physiol

January 2025

Neurovascular Physiology Laboratory, School of Kinesiology, Auburn University, Auburn, AL, USA 36849.

Vitamin D is associated with sleep quality and duration, but it's unclear whether vitamin D status influences sleep variability. Therefore, we sought to determine whether vitamin D status was associated with sleep variability in healthy adults. We assessed objective sleep, including timing and duration standard deviation () using the Philips Actiwatch Spectrum and subjective sleep quality using the Pittsburgh Sleep Quality Index (PSQI) in 130 adults.

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Restoring ceftolozane susceptibility: a role for diazabicyclooctane β-lactamase inhibitors?

Antimicrob Agents Chemother

January 2025

Department of Medicine, Division of Infectious Diseases, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.

Paired baseline and post-exposure isolates from 34 patients who developed ceftolozane-tazobactam (TOL-TAZ) resistance following treatment of multidrug-resistant (MDR) infections were analyzed to determine if ceftolozane with an alternative β-lactamase inhibitor could restore susceptibility. The median baseline TOL-TAZ MIC was 2 mg/L; 88% of post-exposure isolates harbored new mutations. Median MIC fold-increase from baseline was 32-, 24-, 16-, and 6-fold for ceftolozane-tazobactam, ceftolozane-avibactam (AVI), ceftolozane-relebactam (REL), and ceftolozane-durlobactam (DUR), respectively.

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Vitamin B2 Operates by Dual Thermodynamic and Kinetic Mechanisms to Selectively Tailor Urate Crystallization.

J Am Chem Soc

January 2025

Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, United States.

Here we demonstrate how a biologically relevant molecule, riboflavin (vitamin B2), operates by a dual mode of action to effectively control crystallization of ammonium urate (NHHU), which is associated with cetacean kidney stones. In situ microfluidics and atomic force microscopy experiments confirm a strong interaction between riboflavin and NHHU crystal surfaces that substantially inhibits layer nucleation and spreading by kinetic mechanisms of step pinning and kink blocking. Riboflavin does not alter the distribution of tautomeric urate isomers, but its adsorption on NHHU crystal surfaces does interfere with the effects of minor urate tautomer by limiting its ability to induce NHHU crystal defects while also suppressing NHHU nucleation and inhibiting crystal growth by 80% at an uncharacteristically low modifier concentration.

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A nationwide survey in the USA reported that healthcare workers had the highest prevalence of short sleep duration compared with other professions. Moreover, several studies have reported poor sleep quality among healthcare professionals and described insufficient sleep as a potential driver of reduced physician well-being. This study aims to explore sleep quality and mental health issues among Syrian medical residents, with the goal of informing targeted interventions to enhance their well-being and professional performance.

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A measurement of the dijet production cross section is reported based on proton-proton collision data collected in 2016 at by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of up to 36.3 . Jets are reconstructed with the anti- algorithm for distance parameters of and 0.

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Introduction: Alterations in multiple subregions of the human prefrontal cortex (PFC) have been heavily implicated in psychiatric diseases. Moreover, emerging evidence suggests that circadian rhythms in gene expression are present across the brain, including in the PFC, and that these rhythms are altered in disease. However, investigation into the potential circadian mechanisms underlying these diseases in animal models must contend with the fact that the human PFC is highly evolved and specialized relative to that of rodents.

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: active learning in neutron reflectometry for fast data acquisition.

J Appl Crystallogr

January 2024

NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland, USA.

Neutron reflectometry (NR) is a powerful technique for interrogating the structure of thin films at interfaces. Because NR measurements are slow and instrument availability is limited, measurement efficiency is paramount. One approach to improving measurement efficiency is active learning (AL), in which the next measurement configurations are selected on the basis of information gained from the partial data collected so far.

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Background And Objectives: As the population ages there is an increasing need for caregiver training programs, but little is known about how to deliver implementation support for diverse sites in large-scale implementation efforts. External group-based implementation facilitation may be one promising approach. This study's objective is to detail the development and delivery of a pragmatic implementation facilitation approach to support the national rollout of caregiver training, Caregivers FIRST, at over 140 Veterans Health Administration (VHA) sites.

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Population imaging of internal state circuits relevant to psychiatric disease: a review.

Neurophotonics

January 2025

University of Pittsburgh, Department of Psychiatry, Translational Neuroscience Program, Pittsburgh, Pennsylvania, United States.

Internal states involve brain-wide changes that subserve coordinated behavioral and physiological responses for adaptation to changing environments and body states. Investigations of single neurons or small populations have yielded exciting discoveries for the field of neuroscience, but it has been increasingly clear that the encoding of internal states involves the simultaneous representation of multiple different variables in distributed neural ensembles. Thus, an understanding of the representation and regulation of internal states requires capturing large population activity and benefits from approaches that allow for parsing intermingled, genetically defined cell populations.

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Introduction: Sleep disturbances among nurses engaged in night duty and their spouses need to be improved to ensure their ability to provide care and perform daily tasks. Therefore, an objective investigation is needed to establish a sleep improvement strategy.

Objective: To investigate the utility of a sleep tracker to assess sleep quality in nurses and spouses.

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Polyurethanes (PU) make up a large portion of commodity plastics appearing in applications including insulation, footwear, and memory foam mattresses. Unfortunately, as thermoset polymers, polyurethanes lack a clear path for recycling and repurposing, creating a sustainability issue. Herein, using dynamic depolymerization, we demonstrate a simple one-pot synthesis for preparation of an upcycled polyurethane grafted graphene material (PU-GO).

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Platelet-derived growth factor-BB (PDGF-BB), an important protein biomarker, is closely associated with tumorigenesis. Therefore, it is important to develop a simple and sensitive method to detect PDGF-BB. Herein, we developed a dual recycling signal amplification strategy for colorimetric and sensitive detection of PDGF-BB using a PDGF-BB specific aptamer.

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Background: Endothelial function (EndFx) is a core component of cardiovascular (CV) health and cardioprotection following acute myocardial infarction (AMI) treated with primary percutaneous coronary intervention (PCI).

Hypothesis: AMI patients experience endothelial dysfunction (EndDys), associated with traditional CV risk factors and sleep patterns. EndFx may also predict short and mid-term outcomes.

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Background: Technological advancements in artificial intelligence (AI) are redefining cardiac imaging by providing advanced tools for analyzing complex health data. AI is increasingly applied across various imaging modalities, including echocardiography, magnetic resonance imaging (MRI), computed tomography (CT), and nuclear imaging, to enhance diagnostic workflows and improve patient outcomes.

Hypothesis: Integrating AI into cardiac imaging enhances image quality, accelerates processing times, and improves diagnostic accuracy, enabling timely and personalized interventions that lead to better health outcomes.

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Characteristics of TSPO expression in marmoset EAE.

J Neuroinflammation

January 2025

Viral Immunology Section, National Institute of Neurological Diseases and Stroke, National Institutes of Health, Building 10, Room 5C103, 10 Center Drive, Bethesda, MD, 20892-1400, USA.

Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS) and is a leading non-traumatic cause of disability in young adults. The 18 kDa Translocator Protein (TSPO) is a mitochondrial protein and positron emission tomography (PET)-imaging target that is highly expressed in MS brain lesions. It is used as an inflammatory biomarker and has been proposed as a therapeutic target.

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Background: This study aimed to investigate the relationship of psychological empowerment and enjoyment of physical activity with changes in physical activity levels, sleep quality, and muscular endurance following a high-intensity interval training (HIIT) program in physically inactive young women.

Methods: A total of 61 physically inactive young women (age: 20.1 ± 2.

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Background: The World Health Organization (WHO) recommends immediate breastfeeding (within the first hour after birth) and exclusive breastfeeding (for the first six months of life), particularly in low-resource settings such as sub-Saharan Africa. In 2016, WHO updated its antenatal care (ANC) guidelines, recommending at least eight (8+) ANC contacts during pregnancy to improve maternal and child health outcomes. This study investigates i) trends in breastfeeding practices across sub-Saharan Africa following the rollout of the revised WHO 2016 ANC policy and ii) the relationship between ANC uptake and exclusive or early breastfeeding.

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Antifouling Zwitterionic Polymer Coatings for Blood-Bearing Medical Devices.

Langmuir

January 2025

Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States.

Blood-bearing medical devices are essential for the delivery of critical care medicine and are often required to function for weeks to months. However, thrombus formation on their surfaces can lead to reduced device function and failure and expose patients to systemic thrombosis risks. While clinical anticoagulants reduce device related thrombosis, they also increase patient bleeding risk.

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Background: As the population ages, the number of octogenarians with pancreatic ductal adenocarcinoma (PDAC) continues to rise. Morbidity and mortality following pancreatectomy have improved owing to safer surgery and better chemoradiation regimens. This study compares the outcomes and multimodality utilization in octogenarians (≥80 years) who underwent pancreaticoduodenectomy (PD) for PDAC, with a younger cohort.

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Cognitive resilience (CR) describes the phenomenon of individuals evading cognitive decline despite prominent Alzheimer's disease neuropathology. Operationalization and measurement of this latent construct is non-trivial as it cannot be directly observed. The residual approach has been widely applied to estimate CR, where the degree of resilience is estimated through a linear model's residuals.

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The exposome is the measure of all the exposures of an individual in a lifetime and how those exposures relate to health. Exposomics is the emerging field of research to measure and study the totality of the exposome. Exposomics can assist with molecular medicine by furthering our understanding of how the exposome influences cellular and molecular processes such as gene expression, epigenetic modifications, metabolic pathways, and immune responses.

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Association between sleep quality and serum biomarkers among long-term hot spring bathers: a cross-sectional study.

Int J Biometeorol

January 2025

West China School of Public Health and West China Fourth Hospital, Sichuan University, Renmin South Road, Chengdu, 610041, China.

Previous studies investigating the influence of hot spring bathing on sleep quality have predominantly focused on the short-term effects through questionnaire surveys without blood collection for biochemical tests. Here, we undertook a comprehensive investigation of the long-term health effects of hot spring bathing among the residents of Hot Spring Village. A total of 140 participants were enrolled, and their demographic characteristics and the patterns of hot spring bathing were obtained via face-to-face interview, and sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI).

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