title: Comparison of urinary creatine with other biomarkers for the detection of 2-methoxyethanol-induced testicular damage.
abstract: Abstract This study has compared different biomarkers of testicular damage, in particular evaluating urinary creatine as a non-invasive marker. Male rats were exposed to various doses of 2-methoxyethanol, a known testicular toxicant. Pathological damage, testis weight, urinary creatine and creatinine, serum lactate dehydrogenase, isozyme C4 (LDH-C4), and serum testosterone were determined. 2-Methoxyethanol caused dose-dependent pathological damage to the testes which was detectable at the lowest dose (100 mg kg(-1)). Urinary creatine excretion was significantly raised at all doses but testis weight was only significantly decreased at the highest two doses (500, 750 mg kg(-1)). Serum testosterone was only significantly decreased at 500 mg kg(-1) and LDH-C4 was not significantly increased at any dose. Therefore urinary creatine was the most sensitive marker of 2-methoxethanol-induced testicular damage and dysfunction.
authors.forename: R P
authors.initials: RP
authors.lastname: Draper
authors.forename: D M
authors.initials: DM
authors.lastname: Creasy
authors.forename: J A
authors.initials: JA
authors.lastname: Timbrell