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Influence of age on the production of rat spermatozoa, on their concentration in the cauda epididymidis, and on FSH, LH and testosterone plasma levels

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Influence of age on the production of rat spermatozoa on their concentration in the cauda epididymidis and on FSH LH and testosterone plasma levels.pdf(360.31 KB)
Date
1988
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Authors
Larnano Carvalho, T.L. ; Favaretto, A.L.V. ; Kornesu, M.C. ; Lopes, R.A. ; Petenusci, S.O. ; Silva-Netto, C.R
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
Testis samples were taken from young (3 months), middle-aged (12 months) and aged (24 months) male rats, processed, stained and examined via a light microscope. There were no prominent anormal germina1 epithelium and interstitial tissue. However, the aging process promoted a significant decrease in the mean amount of spermatids 19 per cross tubular section, and in the amount of Sertoli cells per cross tubular section in 24-month-old rats. The concentration of spermatozoa in the cauda epididymidis showed a gradual decrease from 3 to 12 and 24 months. After hCG injection al1 groups of animals exhibited an increase in plasma testosterone level, although the response was smaller in 12- and 24-month animals compared to the young mature (3 months) ones.
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Testis , Rat
Citation
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http://hdl.handle.net/10201/17947
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Histology and histopathology Vol. 3, nº 4 (1988)
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