Publication: Low-intensity ultrasound energy applied to the testes of aged rats
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Date
1998
Authors
Haddad, S. ; Franci, J.A.A. ; Petenusci, S.O. ; Lamano Carvalho, T.L.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
Previous studies from our laboratory have
shown that low-intensity ultrasound applied to the
scrotum of prepubertal rats causes a 62% increase in
plasma testosterone, suggesting a possible stimulation
of LH receptors andtor the enzymes controlling the
steroidogenic process. The purpose of the present study
was to investigate whether low-intensity ultrasound has
a stimulatory effect on the androgenic activity of aged
testes. In addition to plasma testosterone, LH and FSH,
the testicular spermatogenic status was also analysed.
Ultrasound applied to the scrotum of aged rats did
not stimulate sperm production, which was significantly
reduced compared to sexually mature animals, and failed
to re-establish the steroidogenic testicular function,
which was decreased by 74%, suggesting an inherent
loss of gonadal steroidogenic competence.
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