Gas chromatography/mass spectrometry based hair steroid profiling may reveal pathogenesis in hair follicles of the scalp

Title
Gas chromatography/mass spectrometry based hair steroid profiling may reveal pathogenesis in hair follicles of the scalp
Authors
정현진김선주이원용정봉철최만호
Keywords
GC-MS; hair; steroid; baldness; dutasteride
Issue Date
2011-05
Publisher
Rapid communications in mass spectrometry : RCM
Citation
VOL 25, NO 9, 1184-1192
Abstract
A method of steroid profiling, including androgens, progestins, corticoids and sterols, was developed to evaluate the concentrations of steroids as well as the activities of the enzymes responsible for steroidogenesis in hair by gas chromatography/mass spectrometry. The extraction efficiencies of steroids from the hair matrix were improved by ultrasonication for 1 h at 50 °C. The overall recoveries ranged from 71 to 132%, with a limit of quantification for all analytes ranging from 1 to 50 ng/g. The devised method was used to identify the metabolic changes for both malepattern baldness (MPB) and the drug efficiency of dutasteride, which inhibits 5α‐reductase. Increased dihydrotestosterone levels and the dihydrotestosterone/testosterone (DHT/T) ratio, which is responsible for the 5α‐reductase activity, were observed in the MPB patients. A dutasteride treatment resulted in decreases in the DHT and 5α‐androstanedione concentrations and DHT/T ratio in the hair samples. Hair steroid profiling reflects the sebaceous status in the scalp and may be useful for monitoring the metabolic responses to both the disease and drug actions.
URI
http://pubs.kist.re.kr/handle/201004/39620
ISSN
0951-4198
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KIST Publication > Article
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