Features of the reactivity of cerebral circulation indices during a person’s stay in hypoxic environments with normal and increased argon content

The aim is to conduct a comparative assessment of the reactivity of cerebral blood flow during a person’s stay in hypoxic gas media identical in oxygen with different argon content to confirm its antihypoxic effect. A total of 24 male subjects aged 19–25 years were examined, divided into 2 groups of equal size. The subjects of the 1st group were spent for 60 minutes in a gaseous environment with an oxygen content in nitrogen of 10 % vol.; Subjects of the 2nd group – in an environment similar in oxygen with an argon content of 35 % vol. (nitrogen – the rest) also for 60 minutes. The data obtained showed that the addition of argon to the hypoxic medium leads to significantly less centralization of blood circulation than is observed when staying in oxygen-similar «argon-free» environments. This fact confirms the antihypoxic biological activity of argon.

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