Sex differences in the sympathetic neurocirculatory responses to chemoreflex activation.

ABSTRACT: The purpose of this study was to determine whether there are sex differences in the cardiorespiratory and sympathetic neurocirculatory responses to central, peripheral, and combined central and peripheral chemoreflex activation. Ten women (29 ± 6 years, 22.8 ± 2.4 kg/m² : mean ± SD) and 10 men (30 ± 7 years, 24.8 ± 3.2 kg/m² ) undertook randomized 5 min breathing trials of: room air (eucapnia), isocapnic hypoxia (10% oxygen (O₂ ); peripheral chemoreflex activation), hypercapnic hyperoxia (7% carbon dioxide (CO₂ ), 50% O₂ ; central chemoreflex activation) and hypercapnic hypoxia (7% CO₂ , 10% O₂ ; central and peripheral chemoreflex activation). Control trials of isocapnic hyperoxia (peripheral chemoreflex inhibitio

SUBMITTER: Sayegh ALC 

PROVIDER: S-EPMC9324851 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature