The article presents the results of evaluation of features of the structural organization of microvascular complexes of muscular fascicles and glands in the prostate of men of different ages. Autopsy material of 103 human prostate was used for examination. The data on the structural transformation of glands, muscle cells and connective tissue components in human prostate suggests that at different age periods the growth and differentiation of various structures occur unevenly, constantly changing relationships between components of organ and parts of its circulatory bed. Circulatory bed of prostate is developed and transformed according to the needs of structures perfused. Age involution processes in the prostate and circulatory bed develop irrespective of man's age and are individual in nature. The general trend of involutional changes of prostate histology suggests that the involution begins within paravasal zones. It seems that the reason is increase the hydrodynamic pressure on the venous bed of prostate.
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Am J Obstet Gynecol
January 2025
Hasselt University, Faculty of Medicine and Life Sciences, Agoralaan, 3590 Diepenbeek, Belgium; Department of Obstetrics and Gynaecology, ZOL Genk, campus St. Jan, Schiepse Bos 6, 3600 Genk, Belgium.
Objective: To investigate the association between functional parameters of the microcirculation and the systemic cardiovascular system in a population of pregnant women at risk for gestational hypertension disorders.
Study Design: For this observational study, women at high cardiovascular risk according to maternal anthropometrics, obstetric and medical history, were recruited at random gestational age depending on time of referral to the outpatient clinic for high risk prenatal care at Ziekenhuis Oost Limburg, Genk Belgium. After birth, data of maternal and neonatal outcome were obtained from the hospital records: only women with normal pregnancy (n = 142) and with preeclampsia (n = 34) were included in this analysis.
Adv Skin Wound Care
January 2025
Keith Gordon Harding, Mb ChB, CBE, FRCGP, FRCP, FRCS, FLSW, is Professor Emeritus Cardiff University, Cardiff, Wales; Adjunct Professor Monash University Malaysia, Subang Jaya, Selangor, Malaysia; and Co-Founder and Editor in Chief of the International Wound Journal. Melissa Blow, BSc, is Principal Podiatrist, South East Wales Vascular Network, Aneurin Bevan University Health Board, Cardiff, Wales. Faye Ashton, BSc, is Vascular Research Nurse, Leicester Biomedical Research Centre, Glenfield University Hospital, Leicester, United Kingdom. David Bosanquet, MD, is Consultant Vascular Surgeon, South East Wales Vascular Network, Aneurin Bevan University Health Board. Acknowledgments: The authors acknowledge the assistance of Firstkind Ltd, Hawk House, Peregrine Business Park, Gomm Road, High Wycombe, United Kingdom HP13 7DL for sponsoring the study (grant ref: FSK-SPECKLE-001) and provided the NMES devices for the trial. Keith Harding has received payments for consulting work from Firstkind Ltd. The authors have disclosed no other financial relationships related to this article. Submitted November 28, 2023; accepted in revised form April 17, 2024.
Objective: To determine if intermittent neuromuscular electrostimulation (NMES) of the common peroneal nerve increases microvascular flow and pulsatility in and around the wound bed of patients with combined venous and arterial etiology.
Methods: Seven consenting participants presenting with mixed etiology leg ulcers participated in this study. Microvascular flow and pulsatility was measured in the wound bed and in the skin surrounding the wound using laser speckle contrast imaging.
Indian J Thorac Cardiovasc Surg
February 2025
Sechenov First Moscow State Medical University, Moscow, Russia.
Pulmonary arteriovenous malformation (PAVM) is a congenital vascular pathology, which is caused by the presence of a direct connection between the branches of the artery and the veins of the lungs, and the discharge of unoxygenated blood into the arterial bed. Arteriovenous malformations are characterized by a wide variety of clinical manifestations and, in some cases, may be accompanied with severe circulatory disorders.
View Article and Find Full Text PDFAm J Physiol Heart Circ Physiol
January 2025
Weatherhead P.E.T. Imaging Center, McGovern Medical School at UTHealth, Houston, Texas, USA.
An increasing number of procedures over the past two decades for aortic stenosis (AS) reflects the combination of an aging population and less invasive transcatheter options. As a result, the hemodynamics of the aortic valve (AV) have gained renewed interest to understand its behavior and to optimize patient selection. We studied the hemodynamic relationship between pressure loss (ΔP) and transvalvular flow (Q) of the normal AV as well as the impact of a variable supravalvular stenosis.
View Article and Find Full Text PDFFluids Barriers CNS
January 2025
Department of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Background: Cerebral autoregulation is a robust regulatory mechanism that stabilizes cerebral blood flow in response to reduced blood pressure, thereby preventing cerebral ischaemia. Scientists have long believed that cerebral autoregulation also stabilizes cerebral blood flow against increases in intracranial pressure, which is another component that determines cerebral perfusion pressure. However, this idea was inconsistent with the complex pathogenesis of normal pressure hydrocephalus, which includes components of chronic cerebral ischaemia due to mild increases in intracranial pressure.
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