Results 131 to 140 of about 1,045,040 (273)

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

Experimental 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, Susan Patricia Mollan   +1 more
wiley   +1 more source

Author response: Effects of orthostatic hypotension on cognition in Parkinson disease [PDF]

, 2017
OBJECTIVE: To investigate the relation between orthostatic hypotension (OH) and posture-mediated cognitive impairment in persons with Parkinson's disease (PD) without dementia.
Canova, Alexander O., Centi, Justin, Cronin-Golomb, Alice, Freeman, Roy, Gibbons, Christopher H., Neargarder, Sandy   +5 more
core   +1 more source

Trimethylamine N‐oxide is elevated in postmenopausal women relative to age‐matched men and premenopausal women among individuals with obesity

Experimental Physiology, EarlyView.
Abstract Trimethylamine N‐oxide (TMAO) is linked to arterial stiffness and atherosclerosis. Cardiovascular disease (CVD) risk increases following menopause in women. Whether menopause influences plasma TMAO metabolism to mediate CVD risk is unknown.
Daniel J. Battillo, Steven K. Malin
wiley   +1 more source

Ageing attenuates regional vasoconstriction during acute lowering of upper and lower limbs

Experimental Physiology, EarlyView.
Abstract The venoarteriolar and myogenic response (VMR) is a non‐adrenergic, non‐baroreflex‐mediated mechanism that increases local vascular resistance and contributes to blood pressure (BP) regulation during orthostasis. Despite the importance of the VMR in human cardiovascular control, no information exists elucidating possible differences in the VMR
John D. Akins, Jeung‐Ki Yoo, Dan‐Dan Sun, Rosemary S. Parker, Marcus A. Urey, Steven A. Romero, Justin S. Lawley, Satyam Sarma, Wanpen Vongpatanasin, Craig G. Crandall, Qi Fu   +10 more
wiley   +1 more source

The impact of healthy motion seating on lower‐limb blood flow and blood pressure response to simulated long‐haul air travel

Experimental Physiology, EarlyView.
Abstract Prolonged sitting inherent to long‐haul air travel can acutely decrease lower‐limb blood flow and increase brachial blood pressure. Healthy motion seating (HMS), which passively alters sitting interface pressure and posture, is a promising technology which may attenuate the deleterious effects of long‐haul air travel. The aim of this study was
Jane Lewis, Barry J. Mcdonnell, Mark Butlin, Edward Johnston, Amira Tairi, Thomas Griffiths, Gisele Bentley, Peter Sykes, Keeron Stone   +8 more
wiley   +1 more source

Effect of obesity on autonomic nervous system [PDF]

, 2011
The present study was carried out on 100 volunteers of which 50 subjects with BMI > 30kg/m2 were included in study group and 50 subjects with BMI < 30kg/m2 (non obese) were included in control group.
Simran Grewal, Vidushi Gupta, Int J Cur Bio Med Sci.
core  

Evidence of racial differences in peripheral blood pressure, central haemodynamics and arterial stiffness between young Black and White women

Experimental Physiology, EarlyView.
Abstract Hypertension diagnosed via peripheral (brachial) blood pressure (pBP) is a strong independent predictor of overt cardiovascular disease (CVD). However, central (aortic) blood pressure (cBP), which is influenced by arterial stiffness, may be more strongly associated with CVD risk. Young Black women (BLW) demonstrate higher pBP than White women (
Michele N. D'Agata, Elissa K. Hoopes, Alexs A. Matias, Mackenzie L. Rattigan, Freda Patterson, Melissa A. Witman   +5 more
wiley   +1 more source

Description, validation, and modification of the Guyton model for space-flight applications. Part A. Guyton model of circulatory, fluid and electrolyte control. Part B. Modification of the Guyton model for circulatory, fluid and electrolyte control [PDF]

The mathematical model that has been a cornerstone for the systems analysis of space-flight physiological studies is the Guyton model describing circulatory, fluid and electrolyte regulation.
Leonard, J. I.
core   +1 more source

Whole‐body hot water immersion effect on cerebral haemodynamics and subsequent cerebrovascular reactivity to carbon dioxide

Experimental Physiology, EarlyView.
Abstract To test the hypothesis that hot water immersion (HWI) improves cerebrovascular function via shear‐mediated mechanisms, this study determined cerebrovascular reactivity to carbon dioxide (CVRCO2${\mathrm{CV}}{{\mathrm{R}}_{{\mathrm{C}}{{\mathrm{O}}_2}}}$) before and after 60 min of 39°C HWI and a 21°C air control (CON) in 15 healthy ...
Samuel F. Leaney, Ester Tommasini, Guto W. Hughes, Alison M. Shepherd, Nyah D. Kingdon, Justin S. Lawley, Geoff B. Coombs, Jonathan P. Moore, Samuel J. Oliver   +8 more
wiley   +1 more source

Remission during pregnancy of severe Chronic Hypertension due to 11-ß Hydroxylase Deficiency [PDF]

, 2004
When hypertension is a result of an underlying identifiable abnormality, the latter's early discovery can lead to a timely cure of the hypertension and the prevention of its complications.
Attard, Gerhardt, Cachia, Mario J.
core