Testosterone urinary excretion rate increases during hypergravity in male monkeys

Strollo, F.; Barger, L.; Fuller, C.

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NASA NTRS · 20040087742

Testosterone urinary excretion rate increases during hypergravity in male monkeys

Strollo, F.·Barger, L.·Fuller, C.

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Abstract

Real and simulated microgravity impairs T secretion both in animals and in the human. To verify whether hypergravity might enhance T secretion as a consequence of an opposite mechanical effect, 6 male monkeys were centrifuged at 2 G for 3 weeks after a 1 G stabilization period lasting 3 weeks and then taken back to 1 G for 1 week and urine were collected daily for T excretion measurement. Significantly higher level were observed during the initial 2 G phase as compared to pre- and post centrifugation periods and the trend was the same during the remaining 2 G period. This may reflect changes in testicular perfusion rather than endocrine adaptation per se.

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Non-NASA Center NASA Discipline Regulatory Physiology Hypergravity Testosterone/metabolism/urine Social Dominance Reproducibility of Results Centrifugation Animals Behavior, Animal Male Macaca mulatta

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Strollo, F., Barger, L., Fuller, C.. 2000-07-01. Testosterone urinary excretion rate increases during hypergravity in male monkeys. https://ntrs.nasa.gov/citations/20040087742

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