Reference ranges for urinary levels of testosterone and epitestosterone, which may reveal gonadal function, in a Korean male population

Title
Reference ranges for urinary levels of testosterone and epitestosterone, which may reveal gonadal function, in a Korean male population
Authors
문주연권운용서성일정재철인문교정봉철김진영최만호
Keywords
testosterone; epitestosterone; marijuana; Korean; T/E ratio
Issue Date
2014-03
Publisher
The Journal of steroid biochemistry and molecular biology
Citation
VOL 140, 100-105
Abstract
Cannabis, or marijuana, the most commonly used illicit drug in the world, has been shown to be respon-sible for suppressing the production and secretion of androgens, particularly testosterone. However,despite such findings in animals, the chronic effects of marijuana use on human endocrine systems haveproved to be inconsistent. Here, we investigated the reference ranges of urinary levels of testosterone(T) and epitestosterone (E) as well as their metabolic ratio of T/E in a Korean male population (n = 337),which would enable an evaluation of abnormal changes in steroid metabolism induced by habituallyadministered cannabis. The T/E ratio was significantly decreased in the marijuana group (n = 18), whilethe urinary testosterone concentrations were also tended to decrease. This study is the first to providedata for the reference values of two urinary androgens and T/E values among control Korean males, and,furthermore, suggests that the T/E ratio, though not testosterone levels, might be used to understand thesuppression of human male gonadal function affected by smoking marijuana.
URI
http://pubs.kist.re.kr/handle/201004/47054
ISSN
09600760
Appears in Collections:
KIST Publication > Article
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