Portal de Periódicos da CAPES

A Test of Endocrine Gonadal Function in Men: Urinary Testosterone After the Injection of HCG. II. A Different Response of the High Altitude Native

1969; Oxford University Press; Volume: 29; Issue: 2 Linguagem: Inglês

10.1210/jcem-29-2-179

1945-7197

Roger Guerra‐García, Alicia Pilar Valverde Velásquez, Juan Coyotupa,

Muscle metabolism and nutrition

The response of 2 groups of young normal men to 4 days of stimulation with 2500 IU of HCG has been studied. At low altitude, 8 men had a mean testosterone excretion of 98±21 (se), which increased to 301±48 during HCG administration. By contrast, 8 men at high altitude (4250 m) had the same mean (79±7) basal excretion but increased to only 130.9±9 during HCG. The response of the high altitude native is qualified as delayed, lower and shorter. The control excretion of 17-KS was lower in the high altitude group; after HCG an increase was observed, with considerable individual variations. An increase of urinary epitestosterone was consistently observed after the injection of HCG.