| Project/Area Number |
05671306
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Urology
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| Research Institution | TOYAMA MEDICAL AND PHARMACEUTICAL UNIVERSITY |
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Principal Investigator |
IWASAKI Masashi Toyama medical and pharmaceutical university, Medicine, Assistant, 医学部, 助手 (60176542)
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| Co-Investigator(Kenkyū-buntansha) |
FUSE Hideki Toyama medical and pharmaceutical university, Medicine, Assistant Proffesor, 医学部, 助教授 (40143292)
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| Project Period (FY) |
1993 – 1994
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| Project Status |
Completed (Fiscal Year 1994)
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| Budget Amount *help |
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1994: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1993: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | immunosuppresive drug / cyclosporine (Cs) / azathioprine (AZP) / mizoribin (MZR) / spermatogenesis / rat / cyclosporin / 精細管障害 / アザチオプリン / ミゾリビン / 精子運動率 |
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| Research Abstract |
The effects of cyclosporin (Cs) , azathioprine (AZP) and mizoribin (MZR) on male reproduction in rats were examined.A dose-dependent decrease in the sperm count in the cauda epididymis was observed 6 weeks after Cs, AZP and MZR were administered. Sperm motility was significantly decreased in each Cs-treated group immediately after the injection of Cs and improved gradually, but was not changed in the AZP or MZR treated groups.Significant dose-dependent damage of the seminiferous tubules was demonstrated 6 weeks after administration of Cs, AZP and MZR.
The serum levels of luteinizing hormone and follicle-stimulating hormone remained the same throughout the experiment. The serum level of testosterone was significantly low immediately after the injections of AZP and MZR,but was not changed by that of Cs.
In conclusion, Cs, AZP and MZR injured the spermatogonia in rat, but only Cs injured the epididymal function as well.
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