Flutamide-induced cryptorchidism in the rat is associated with altered gubernacular morphology

Mark P. Cain, Stephen A. Kramer, Donald J. Tindall, Douglas A. Husmann

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Objectives: One of the major controversies regarding descent of the testes is whether androgenic regulation of the gubernaculum testes exists. To determine if antiandrogens can alter the development of the gubernaculum within the fetus, the following experiment was performed. Methods: Timed pregnant Sprague-Dawley rats were treated with either flutamide, dihydrotestosterone (DHT), or vehicle alone (controls) from gestational day (CD) 15 to 17. Fetal specimens were removed via cesarean section on CD 18 and 20. Serial coronal sections were obtained, and digital microscopy with computer-assisted reconstruction was used to ascertain the morphology of the three components of the gubernaculum, that is, the gubernacular cord and the mesenchymal and muscular components of the gubernacular bulb. Results: Flutamide significantly prevented and DHT significantly enhanced gubernacular cord regression compared with controls (P <0.01). Flutamide also resulted in a significant inhibition of the gubernacular bulb outgrowth, with diminution of both the mesenchymal and muscular components of the gubernacular bulb. Conclusions: These data suggest that androgens play an active role in gubernacular cord regression and gubernacular outgrowth within the fetal rodent.

Original languageEnglish (US)
Pages (from-to)553-558
Number of pages6
JournalUrology
Volume46
Issue number4
DOIs
StatePublished - 1995

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Flutamide
Cryptorchidism
Dihydrotestosterone
Testis
Androgen Antagonists
Cesarean Section
Androgens
Sprague Dawley Rats
Microscopy
Rodentia
Fetus
Gubernaculum

ASJC Scopus subject areas

  • Urology

Cite this

Flutamide-induced cryptorchidism in the rat is associated with altered gubernacular morphology. / Cain, Mark P.; Kramer, Stephen A.; Tindall, Donald J.; Husmann, Douglas A.

In: Urology, Vol. 46, No. 4, 1995, p. 553-558.

Research output: Contribution to journalArticle

Cain, Mark P. ; Kramer, Stephen A. ; Tindall, Donald J. ; Husmann, Douglas A. / Flutamide-induced cryptorchidism in the rat is associated with altered gubernacular morphology. In: Urology. 1995 ; Vol. 46, No. 4. pp. 553-558.
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