Why the study?
Does the human testis secrete active renin and prorenin into the general circulation?
Population
29 young men undergoing varicocelectomy
Comparison
Measurement of internal spermatic venous blood vs Measurement of peripheral blood
Design
Cross-sectional
Authors
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Testicular prorenin secretion may elevate circulating levels without active renin; supports extrarenal non-processing hypothesis but remains hypothesis-generating.
Does the human testis secrete active renin and prorenin into the general circulation?
The human testis secretes prorenin, but not active renin or angiotensinogen, supporting the hypothesis that extrarenal renin systems cannot process prorenin to renin.
Sealey et al. (1988) studied this question.
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