Results 261 to 270 of about 220,408 (350)

Effects of prolonged head-down tilt on internal jugular vein cross-sectional area [PDF]

open access: hybrid, 2002
SJ Schreiber   +3 more
openalex   +1 more source

Integrative cardiovascular dose–response to graded lower‐body negative pressure

open access: yesExperimental Physiology, EarlyView.
ABSTRACT Lower‐body negative pressure (LBNP) has been posited as a potential spaceflight countermeasure to counteract the physiological deconditioning related to fluid shifts in microgravity. However, open questions remain regarding the magnitude of LBNP that should be applied.
Richard S. Whittle   +5 more
wiley   +1 more source

Elevated cortisol concentration in preterm sheep fetuses impacts heart development

open access: yesExperimental Physiology, EarlyView.
Abstract The prepartum rise in cortisol promotes cardiac development and maturation. Here, we investigated the impact of elevated circulating cortisol during mid‐late gestation on cardiac growth and metabolism in fetal sheep. Saline or cortisol (2–3 mg in 4.4 mL/24 h) was infused into the fetal jugular vein from 109 to 116 days gestation (dG, term ...
Reza Amanollahi   +9 more
wiley   +1 more source

Orexinergic neurons contribute to autonomic cardiovascular regulation for locomotor exercise

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend This study unveiled the essential role of the orexinergic nervous system in the central circuitry that transmits central command signals for locomotor exercise. We observed the excitation of orexinergic neurons by voluntary locomotor exercise in rats.
Emi Narai   +7 more
wiley   +1 more source

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