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Oxygenation targets for endovascular therapy in acute ischemic stroke patients (Oxy-TARGET): protocol for a single-centre, open-label randomised controlled trial.
BMJ Open
January 2025
Department of Anesthesiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, PR China
Introduction: Preclinical studies have shown that oxygen therapy can improve ischaemic brain tissue oxygen tension, reduce reperfusion injury after revascularisation, promote neuroregeneration and inhibit inflammatory responses potentially exerting a beneficial effect after endovascular treatment (EVT) in patients with acute ischaemic stroke (AIS). However, the optimal fraction of inspired oxygen (FiO) during EVT under general anaesthesia is currently unknown. Therefore, we are conducting a randomised controlled trial (RCT) to evaluate the impact of high-concentration oxygen vs low-concentration normobaric oxygen on early neurological function after EVT.
View Article and Find Full Text PDFEnhanced myocardial perfusion in late gestation fetal lambs with impaired left ventricular inflow.
J Physiol
January 2025
Center for Developmental Health, Oregon Health & Science University, Portland, OR, USA.
Robust preclinical models of asymmetric ventricular loading in late gestation reflecting conditions such as hypoplastic left heart syndrome are lacking. We characterized the morphometry and microvascular function of the hypoplastic left ventricle (LV) and remaining right ventricle (RV) in a sham-controlled late gestation fetal lamb model of impaired left ventricular inflow (ILVI). Singleton fetuses were instrumented at ∼120 days gestational age (dGA; term is ∼147 days) with vascular catheters, an aortic flow probe and a deflated left atrial balloon.
View Article and Find Full Text PDFDivergent paths of mammary gland involution: unveiling the cellular dynamics in abruptly and gradually involuted mouse models.
Breast Cancer Res
January 2025
Division of Medical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA.
Background: Epidemiological studies associate an increase in breast cancer risk, particularly triple-negative breast cancer (TNBC), with lack of breastfeeding. This is more prevalent in African American women, with significantly lower rate of breastfeeding compared to Caucasian women. Prolonged breastfeeding leads to gradual involution (GI), whereas short-term or lack of breastfeeding leads to abrupt involution (AI) of the breast.
View Article and Find Full Text PDFEffect of Nb/B addition on the flow behavior and mechanical properties of low-carbon steel using compact strip production.
Sci Rep
January 2025
Department of Mechanical Engineering, Faculty of Engineering, Suez University, P.O.Box: 43221, Suez, Egypt.
This work examines the effects of Nb and Nb-B additives on the high-temperature flow behavior and mechanical properties of low-carbon steel. The base, 0.015% Nb-bearing (15Nb alloy), and 0.
View Article and Find Full Text PDFFingerprinting the emissions of volatile organic compounds emitted from the cooking of oils, herbs, and spices.
Environ Sci Process Impacts
January 2025
Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, UK.
Emission rates for volatile organic compounds (VOCs) have been quantified from frying, spice and herb cooking, and cooking a chicken curry, using real-time selected-ion flow-tube mass spectrometry (SIFT-MS) for controlled, laboratory-based experiments in a semi-realistic kitchen. Emissions from 7 different cooking oils were investigated during the frying of wheat flatbread (puri). These emissions were dominated by ethanol, octane, nonane and a variety of aldehydes, including acetaldehyde, heptenal and hexanal, and the average concentration of acetaldehyde (0.
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