Abstract
In this study, we conducted a comparative analysis of the responses to hypoxia of microcirculation (MCR) parameters of the temporal areas of the head in male and female subjects. The study was conducted in 20 healthy volunteers aged 18–19 (10 male and 10 female). The state of short-term hypoxia was induced using a ReOxy Cardio normobaric device (S.A. Aimediq, Luxembourg). Synchronous measurements of MCR parameters of symmetrical temporal regions of the head in the basal state and immediately after short-term hypoxic exposure were carried out by laser Doppler flowmetry. Statistical characteristics of perfusion of both sides of the measurement and correlation characteristics of the relationships between changes in the MCR parameters of the symmetric sides of the observation were evaluated. The results show sex differences in reactions to hypoxic effects. In 80% of men, hypoxia led to an increase in left perfusion; in 20%, to a decrease. In women, the opposite pattern was observed: in 10%, perfusion on the left increased, and in 90%, it decreased. The results of the research revealed the features of left–right asymmetry in the regulation of MCR parameters of the temporal regions of the heads of males and females. The physiological mechanisms underlying the differences in the regulation of MCR parameters of the symmetrical regions of the male and female brain require further study.
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Anokhin Research Institute of normal physiology, Moscow, Russia Institute of Clinical Medicine of the Sechenov First Moscow State Medical University (Sechenov University, Moscow).
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All studies were carried out in accordance with the principles of biomedical ethics formulated in the Declaration of Helsinki of 1964 and its subsequent updates, and approved by the local bioethics committee of the Anokhin Research Institute of Normal Physiology (Moscow).
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Mezentseva, L.V., Dudnik, E.N. & Nikenina, E.V. Comparative Analysis of Microcirculatory Reactions to Hypoxic Effects in Male and Female Subjects. Hum Physiol 48, 170–175 (2022). https://doi.org/10.1134/S0362119722020116
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DOI: https://doi.org/10.1134/S0362119722020116