title: [Cyclosporin levels in semen of renal transplant patients].
abstract: Cyclosporin (CsA) has powerful immunosuppressive properties, and its recent application to organ transplantation has resulted in markedly improved graft survival. However, CsA has certain adverse side effects, the most notable being nephrotoxicity and hepatotoxicity. Among other untoward effects, little is known about the effects of CsA on the reproductive organs. Since good graft survival is now expected with CsA, the long term effect of the drug on the gonads should be monitored carefully, particularly for young recipients. Prior to investigation of the effect of CsA on the testis, the level of CsA in semen of the adult renal transplant patients were measured. Twelve samples of semen from eight recipients, mean age 35 (SD 9), were collected by masturbation in the morning just before taking CsA after more than 5 day abstinence, and it was frozen at -80 degrees C. They had been taking immunosuppressants that were a combination of either CsA and prednisolone, or CsA, azathioprine and prednisolone for 5 to 63 months. The dose of CsA was 3.7 mg/kg to 5.0 mg/kg. The range of the level of serum creatinine was 1.1 mg/dl to 2.9 mg/dl. CsA in whole blood was measured by high performance liquid chromatography (HPLC), and CsA in semen was also measured by HPLC after extracting CsA with diethylether. The level of CsA in semen was 27 ng/ml to 165 ng/ml and that in whole blood was 51 ng/ml to 133 ng/ml. The relation between both levels was linear (r = 0.68, p less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
authors: Department of Urology, Shiga University of Medical Science.
authors: K
authors: K
authors: Pak
authors: C J
authors: CJ
authors: Kim
authors: A
authors: A
authors: Ishida
authors: M
authors: M
authors: Kushima
authors: T
authors: T
authors: Tomoyoshi
authors: T
authors: T
authors: Sako
authors: K
authors: K
authors: Okino
authors: Y
authors: Y
authors: Nakane
authors: M
authors: M
authors: Kodama
authors: N
authors: N
authors: Shibata
mesh_terms: D000328:Adult; D002851:Chromatography, High Pressure Liquid; D003404:Creatinine / Q000097:blood; D003524:Cyclosporins / Q000008:administration & dosage / Q000032:analysis* / Q000097:blood; D006801:Humans; D007668:Kidney / Q000503:physiopathology; D016030:Kidney Transplantation; D008297:Male; D008875:Middle Aged; D012661:Semen / Q000378:metabolism*
chemical_list: D003524:Cyclosporins; D003404:Creatinine