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Sex and age-related day-to-day variability in the skin microcirculation during post-occlusive reactive hyperemia.
Microvasc Res
January 2025
Primary Health Care Center, Department of Health, Medicine and Caring Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden; Wallenberg Centre for Molecular Medicine, Linköping University, Linköping, Sweden. Electronic address:
Introduction: Little is known about the day-to-day variability of different skin microcirculation parameters, and how this variability is influenced by age and sex. The aim was to examine the day-to-day variability of microcirculatory parameters in relation to age and sex.
Methods: The cutaneous microcirculation was measured using a fiber optic probe integrating laser Doppler flowmetry (LDF) and diffuse reflectance spectroscopy (DRS) to measure oxygen saturation, red blood cell (RBC) tissue fraction, speed-resolved and conventional perfusion.
The role of partial splenic artery embolization in the management of refractory esophageal variceal bleeding due to portal vein thrombosis.
BMC Pediatr
January 2025
Liver Transplantation & Hepatopancreatobiliary Surgery Unit, Department of General Surgery, Istanbul Faculty of Medicine, Istanbul, Türkiye.
Background: Gastro-esophageal variceal hemorrhage (GEVH) is one of the major causes of life-threatening gastrointestinal bleeding in children. Medical, endoscopic, angiographic, and surgical interventions can be utilized in treatment. In this case report, we describe partial splenic artery embolization for refractory GEVH due to portal vein thrombosis.
View Article and Find Full Text PDF[Effects of high salt diet on renal vascular reactivity in mice detected by laser speckle contrast imaging].
Sheng Li Xue Bao
December 2024
Department of Physiology, Zhuhai Campus of Zunyi Medical University, Zhuhai 519040, China.
The aim of this study was to conduct experiments using laser speckle contrast imaging (LSCI) technology to investigate the effects of high salt diet on renal vascular reactivity in mice. LSCI is a technology for monitoring blood flow based on the laser speckle principle. It has been widely used to detect microcirculatory functions in tissues such as the skin and brain.
View Article and Find Full Text PDFMultiscale optoacoustic assessment of skin microvascular reactivity in carotid artery disease.
Photoacoustics
December 2024
Clinic and Polyclinic for Vascular and Endovascular Surgery, TUM University Hospital, Hospital rechts der Isar, Technical University of Munich, Munich, Germany.
Microvascular endothelial dysfunction may provide insights into systemic diseases, such as carotid artery disease. Raster-scan optoacoustic mesoscopy (RSOM) can produce images of skin microvasculature during endothelial dysfunction challenges via numerous microvascular features. Herein, RSOM was employed to image the microvasculature of 26 subjects (13 patients with single carotid artery disease, 13 healthy participants) to assess the dynamics of 18 microvascular features at three scales of detail, i.
View Article and Find Full Text PDFPressure-Induced Microvascular Reactivity With Whole Foot Loading Is Unique Across the Human Foot Sole.
Microcirculation
January 2025
Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada.
Background: Foot sole plantar pressure generates transient but habitual cutaneous ischemia, which is even more exacerbated in atypical gait patterns. Thus, adequate post-occlusive reactive hyperaemia (PORH) is necessary to maintain skin health. Plantar pressure regional variance during daily tasks potentially generates region-specific PORH, crucial for ischemic defence.
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