Results 121 to 130 of about 13,685 (235)

Modulation of pulmonary vasomotor tone in the fetus and neonate [PDF]

open access: yes, 2001
The high pulmonary vascular resistance (PVR) of atelectatic, hypoxic, fetal lungs limits intrauterine pulmonary blood flow (PBF) to less than 10% of combined right and left ventricular output.
Gordon John B, Ghanayem Nancy S
core   +2 more sources

Translating cardiovascular ion channel and Ca2+ signalling mechanisms into therapeutic insights

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend This white paper integrates mechanistic discoveries across ion channel biology, Ca2+ signalling and multiscale cardiovascular physiology to highlight new opportunities for accelerating research and guiding next‐generation therapies. Printed with permission from ®Anita Impagliazzo Medical Illustration. [Correction added on 2 March
Silvia Marchianò   +18 more
wiley   +1 more source

Role of reactive oxygen species in mediating peripheral hypoxic vasodilation and sympathoexcitation at high altitude

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend High‐altitude acclimatisation increases muscle sympathetic nerve activity (MSNA) via activation of the arterial chemoreflex, pulmonary arterial baroreceptors and resetting of the sympathetic vascular baroreflex. However attempting to silence these mechanisms only partially normalises MSNA, implicating other contributory ...
Liam D. Corr   +15 more
wiley   +1 more source

Respiration Can Trigger Cerebrovascular Reactivity: A Novel Method to Quantify Cerebrovascular Resistance Dynamics Using Real‐Time Phase‐Contrast MRI

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 1, Page 83-95, July 2026.
ABSTRACT Purpose To directly quantify respiration‐driven cerebrovascular resistance dynamics (CRD) using a gas‐free MRI framework based on the internal‐to‐external artery carotid flow ratio (ratio_Q). Theory and Methods Two independent datasets (n = 10 and n = 17) were used to evaluate repeatability and to compare breathing conditions.
Pan Liu   +5 more
wiley   +1 more source

Microvascular Dysfunction Following Cardioplegic Arrest and Cardiopulmonary Bypass: Impacts of Diabetes and Hypertension

open access: yesBiomedicines
Cardioplegic arrest and cardiopulmonary bypass (CP/CPB) are known to engender microvascular dysfunction in patients undergoing cardiac surgery. These effects are significantly varied by patient comorbidities including diabetes and hypertension.
Meghamsh Kanuparthy   +7 more
doaj   +1 more source

Cerebral Vasomotor Reactivity: Impact of Hyperventilation Induced Hypocapnia on Hypercapnia Induced Vasodilation [PDF]

open access: yes, 2014
Cerebral vasomotor reactivity (CVMR; the relationship of cerebral blood flow responses to changes in arterial carbon dioxide (PCO2)) is used to assess cerebral vascular function.
Christmas, Kevin M
core   +1 more source

Vasomotor reactivity evaluation in cardiac rehabilitation.

open access: yesMonaldi archives for chest disease = Archivio Monaldi per le malattie del torace, 2002
Endothelial dysfunction is a generalized phenomenon detectable at various levels in the vasculature, and is evident very early in the atherosclerotic process. These peculiarities have stimulated the introduction of new non-invasive techniques dedicated to evaluate the vasomotor response of arteries or districts in favourable position in the body ...
R, Belardinelli, G P, Perna
openaire   +1 more source

Cardiovascular β‐Adrenergic Receptor Distribution and Function: Influence of Species, Sex, Age, and Tissue

open access: yesComprehensive Physiology, Volume 16, Issue 3, June 2026.
Estrogen modulates β‐AR signaling in a context‐dependent manner influenced by species, sex, age, tissue, and vascular health, highlighting challenges in translating findings from experimental models to human cardiovascular physiology. ABSTRACT Cardiovascular diseases remain the leading global cause of morbidity and mortality, with notable sex‐specific ...
Basant Elsaid   +5 more
wiley   +1 more source

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