title: Inhibition of spontaneous testicular Leydig cell tumor development in F-344 rats by dehydroepiandrosterone.
abstract: The incidence of spontaneous Leydig cell tumors of testis is very high in old F-344 rats. We have examined the effect of dehydroepiandrosterone (DHEA), a steroid hormone with antimitotic and anticarcinogenic properties, on spontaneous Leydig cell tumorigenesis. Fifteen-week-old male F-344 rats were fed a diet containing DHEA (0.45% w/w) for 84 weeks. At the termination of experiment none of the 13 rats had Leydig cell hyperplasia or Leydig cell tumors. All the eight control rats of comparable age had Leydig cell tumors. These findings suggest that DHEA is a potent inhibitor of spontaneous Leydig cell tumors of testis in aged rats.
authors.affiliation: Department of Pathology, Northwestern University Medical School, Chicago, IL 60611-3008.
authors.forename: M S
authors.initials: MS
authors.lastname: Rao
authors.forename: V
authors.initials: V
authors.lastname: Subbarao
authors.forename: A V
authors.initials: AV
authors.lastname: Yeldandi
authors.forename: J K
authors.initials: JK
authors.lastname: Reddy
mesh_terms: D000375:Aging; D000818:Animals; D000970:Antineoplastic Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D003687:Dehydroepiandrosterone / Q000008:administration & dosage / Q000627:therapeutic use*; D004032:Diet; D006965:Hyperplasia; D007984:Leydig Cell Tumor / Q000473:pathology / Q000517:prevention & control*; D008297:Male; D051381:Rats; D011916:Rats, Inbred F344; D013736:Testicular Neoplasms / Q000473:pathology / Q000517:prevention & control*; D013737:Testis / Q000254:growth & development / Q000473:pathology
chemical_list: D000970:Antineoplastic Agents; D003687:Dehydroepiandrosterone