Results 111 to 120 of about 57,963 (312)

Retrospective Report of the Use and Outcome of High‐Velocity Nasal Insufflation in Cats (2019–2022): Eight Cases

open access: yesJournal of Veterinary Emergency and Critical Care, EarlyView.
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]

open access: yes, 2015
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

Insulin-Like ILP2 Regulates Trehalose Metabolism to Tolerate Hypoxia/Hypercapnia in Tribolium castaneum

open access: gold, 2022
Yuanyuan Wang   +7 more
openalex   +1 more source

An eye on long‐duration spaceflight: Controversies, countermeasures and challenges

open access: yesExperimental Physiology, EarlyView.
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

Confined spaces in space: Cerebral implications of chronic elevations of inspired carbon dioxide and implications for long‐duration space travel

open access: yesExperimental Physiology, EarlyView.
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

open access: yesERJ Open Research, 2015
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

Effects of the angle of head‐down tilt on dynamic cerebral autoregulation during combined exposure to cephalad fluid shift and mild hypercapnia

open access: yesExperimental Physiology, EarlyView.
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

Vascular health and exercise in females throughout the lifespan: Exploring puberty, pregnancy and menopause

open access: yesExperimental Physiology, EarlyView.
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

Effects of aging on the association between cerebrovascular responses to visual stimulation, hypercapnia and arterial stiffness

open access: yesFrontiers in Physiology, 2014
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]

open access: yes, 2018
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
core  

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