Results 111 to 120 of about 57,963 (312)
ABSTRACT Objective To describe the use and feasibility of high‐velocity nasal insufflation (HVNI) in cats. Design Retrospective descriptive study from 2019 to 2022. Setting University teaching hospital. Animals Eight cats that failed traditional oxygen therapy and, based on clinical evaluation, required more aggressive oxygen supplementation ...
A. Wampfler +4 more
wiley +1 more source
Effects of low seawater pH on the marine polychaete Platynereis dumerilii [PDF]
An important priority for any organism is to maintain internal cellular homeostasis including acidbase balance. Yet, the molecular level impacts of changing environmental conditions, such as low pH, remain uncharacterised.
Arendt, Detlev +8 more
core +1 more source
An eye on long‐duration spaceflight: Controversies, countermeasures and challenges
Abstract Space flight‐associated neuroocular syndrome (SANS) is a consequence of long‐duration space flight and is detected in two‐thirds of astronauts. In‐flight, this can cause a change in the refraction of the eyes, requiring graded hypermetropic ‘superfocus adjustable’ glasses, optic nerve head oedema and choroidal folds.
Vincent Wing Sum Ng +1 more
wiley +1 more source
Abstract Cerebrovascular regulation is critically dependent upon the arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_{\mathrm{2}}}}}$), owing to its effect on cerebral blood flow, tissue PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_{\mathrm{2}}}}}$, tissue proton concentration, cerebral metabolism and cognitive and neuronal ...
Jay M. J. R. Carr +2 more
wiley +1 more source
Increased ventilatory response to carbon dioxide in COPD patients following vitamin C administration
Patients with chronic obstructive pulmonary disease (COPD) have decreased ventilatory and cerebrovascular responses to hypercapnia. Antioxidants increase the ventilatory response to hypercapnia in healthy humans.
Sara E. Hartmann +6 more
doaj +1 more source
Abstract Astronauts experience combined exposure to a cephalad fluid shift and mild hypercapnia during space missions, potentially contributing to health problems. Such combined exposure may weaken dynamic cerebral autoregulation. The magnitude of cephalad fluid shift varies between individuals, and dynamic cerebral autoregulation may be affected more ...
Tomokazu Kato +2 more
wiley +1 more source
Abstract This narrative review highlights the impact of exercise on vascular health in females over the lifespan with an emphasis on puberty, pregnancy and menopause. These events encompass substantial changes in sex hormone levels, particularly oestrogens and progesterone.
Kathleen B. Miller +2 more
wiley +1 more source
Aging is associated with decreased vascular compliance and diminished neurovascular- and hypercapnia-evoked cerebral blood flow (CBF) responses. However, the interplay between arterial stiffness and reduced CBF responses is poorly understood.
Daniela eFlück +16 more
doaj +1 more source
Moderate hypercapnia exerts beneficial effects on splanchnic energy metabolism during endotoxemia [PDF]
Purpose: Low tidal volume ventilation and permissive hypercapnia are required in patients with sepsis complicated by ARDS. The effects of hypercapnia on tissue oxidative metabolism in this setting are unknown.
Boulat, Olivier +4 more
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