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NADPH oxidase derived ROS promote arterial contraction in early postnatal rats by activation of L-type voltage-gated Ca channels.
Free Radic Res
January 2025
Department of Human and Animal Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, Russia.
Reactive oxygen species (ROS) produced by NADPH oxidase promote contraction of peripheral arteries, which is especially pronounced in early postnatal period in comparison to adulthood, but the mechanisms of such vasomotor influence are poorly understood. We tested the hypothesis that Rho-kinase and protein kinase C (PKC) mediate procontractile influence of NADPH oxidase derived ROS in peripheral artery of early postnatal rats. In addition, we evaluated the involvement Src-kinase and L-type voltage-gated Ca channels (LTCC) into procontractile influence of ROS, produced by NADPH oxidase, because of their known interplay with Rho-kinase and PKC pathways.
View Article and Find Full Text PDFProlonged sitting is not associated with altered shear-mediated dilation of the internal carotid artery, despite impairing lower limb endothelial function.
Physiol Rep
February 2025
Department of Biomedical Engineering, Toyo University, Saitama, Japan.
The present study aims to examine the effect of 4 h of continuous sitting on cerebral endothelial function, which is a crucial component of cerebral blood flow regulation. We hypothesized that 4 h of sitting may impair cerebral endothelial function similarly to how it affects lower limb vasculature. Thirteen young, healthy participants were instructed to remain seated for 4 h without moving their lower limbs.
View Article and Find Full Text PDFA Belgian physician-initiated trial investigating the LifeStream peripheral stent graft system for the treatment of complex TASC C and D iliac lesions.
J Cardiovasc Surg (Torino)
February 2025
Department of Vascular Surgery, AZ Sint Blasius, Dendermonde, Belgium.
Background: Due to the heterogeneity of literature findings, stent type selection for the endovascular treatment of complex aorto-iliac occlusive disease remains challenging. The BELSTREAM study, a physician-initiated, prospective, multicenter, single-arm study, aims to report the safety and efficacy of the balloon expandable LifeStream Peripheral Stent Graft System (BD, Tempe, Arizona, USA) for the treatment of complex TASC C and D aorto-iliac artery lesions.
Methods: Seventy patients and 133 lesions were included at six Belgian institutions.
A case of bacteremia in a 38-year-old homeless male originating from a maggot-infested amputated foot.
IDCases
January 2025
University of Kansas Medical Center, Department of Internal Medicine, Division of Infectious Diseases, 3901 Rainbow Blvd., Mailstop 1028, Kansas City, KS 66160, USA.
() was first isolated from the larval stage of the fly vector It is a gram-negative, non-motile, strictly aerobic rod that thrives in temperatures between 28º C and 37º C. Its strong chitinase activity aids in metamorphosis, which suggests a symbiotic relationship with the fly. Although rare, has been implicated in human infections, like bacteremia and osteomyelitis, typically transmitted through fly larvae in skin wounds.
View Article and Find Full Text PDFBlood usage among orthopedic patients at the Rivers State University Teaching Hospital, Port Harcourt, Nigeria.
Niger Med J
January 2025
Department of Surgery, Rivers State University Teaching Hospital, Port Harcourt, Nigeria.
Background: Blood transfusion holds a significant place in the practice of surgery, including orthopaedic surgeries. The aim of this study was to evaluate the intraoperative use of blood and blood products among orthopaedic patients operated at the Rivers State University Teaching Hospital from January 2021 to December 2021, focusing on the demographics of patients, number and type of surgeries needing a blood transfusion, and the number of blood transfusions.
Methodology: A retrospective observational study was carried out at the operating theatre of a referral tertiary hospital using a designed proforma to extract data from the registers of operated orthopaedic patients.
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