title: A new non-hormonal antifertility drug DL 111-IT: II. Effects on testicular hyaluronidase activity in male rats.
abstract: Effects of DL-111, [3-(2-ethylphenyl)-5-(3-methoxyphenyl-1H-1,2,4-triazole] a non-hormonal antifertility agent, on testicular hyaluronidase activity, an accurate biochemical marker for testicular function, were evaluated in male rats. Treatment of 21-day-old rats with DL-111 sc for 7 or 15 days resulted in a significant fall in testicular weight and complete suppression of hyaluronidase activity. During the 30-day post-treatment the enzyme activity was restored to normal levels. Treatment of 40-day-old rats for 7 or 15 days also produced a significant decrease in testicular weight and hyaluronidase activity. Simultaneous administration of LH, PMSG or T with DL-111 to 21-day-old rats blocked the inhibitory activity of the drug as the enzyme activity was restored to untreated control levels. Administration of FSH along with DL-111 had no effect on suppressive action of the drug. These results suggest that in male rats DL-111 inhibits testicular activity by reducing LH levels, thereby reducing T levels as observed by reduced weights of testes and accessory glands of reproduction and hyaluronidase activity.
authors.forename: R S
authors.initials: RS
authors.lastname: Prasad
authors.forename: E
authors.initials: E
authors.lastname: Vijayan
mesh_terms: D000019:Abortifacient Agents / Q000494:pharmacology*; D000020:Abortifacient Agents, Nonsteroidal / Q000494:pharmacology*; D000375:Aging; D000818:Animals; D005640:Follicle Stimulating Hormone / Q000494:pharmacology; D006064:Gonadotropins, Equine / Q000494:pharmacology; D006821:Hyaluronoglucosaminidase / Q000378:metabolism*; D007700:Kinetics; D007986:Luteinizing Hormone / Q000494:pharmacology; D008297:Male; D051381:Rats; D011919:Rats, Inbred Strains; D012741:Sexual Maturation; D013737:Testis / Q000187:drug effects / Q000201:enzymology* / Q000254:growth & development; D013739:Testosterone / Q000494:pharmacology; D014230:Triazoles / Q000494:pharmacology*
chemical_list: D000019:Abortifacient Agents; D000020:Abortifacient Agents, Nonsteroidal; D006064:Gonadotropins, Equine; D014230:Triazoles; D013739:Testosterone; C030266:3-(2-ethylphenyl)-5-(3-methoxyphenyl)-1H-1,2,4-triazole; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D006821:Hyaluronoglucosaminidase