Life Sciences 2019-Sep
Chronic intermittent hypoxia stimulates testosterone production in rat Leydig cells.
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Keywords
Abstract
MATERIALS AND METHODS
Male rats were divided into two groups. The rats exposed to chronic intermittent hypoxia (CIH) at 8 h/day were housed in a hypoxic chamber (12% O2) for 14 days. Normoxic rats were used as control animals. T was measured after challenging the rat Leydig cells (LCs) with different stimulators, including hCG (0.01 IU/ml), forskolin (10-5 M), 8-bromo-cAMP (10-4 M), A23187 (10-5 M), cyclopiazonic acid (10-4 M), and androstenedione (10-8 M). Meanwhile, the LCs were incubated with trilostane (10-5 M) and/or 25-OH-hydroxycholesterol (10-5 M); thereafter the media were collected for pregnenolone assay.