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Clinical Chemistry and Laboratory Medicine (CCLM)

Published in Association with the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM)

Editor-in-Chief: Plebani, Mario

Ed. by Gillery, Philippe / Lackner, Karl J. / Lippi, Giuseppe / Melichar, Bohuslav / Payne, Deborah A. / Schlattmann, Peter / Tate, Jillian R.

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Volume 43, Issue 2


Delayed effects of short-term transdermal application of 7-oxo-dehydroepiandrosterone on its metabolites, some hormonal steroids and relevant proteohormones in healthy male volunteers

Jarmila Šulcová / Richard Hampl / Martin Hill / Luboslav Stárka / Alois Nováček
Published Online: 2011-09-21 | DOI: https://doi.org/10.1515/CCLM.2005.038


Twenty-one healthy male volunteers aged 20–70years were given transdermally 25mg of 7-oxo-dehydroepiandrosterone daily in the form of an emulgel for 8 consecutive days. Morning blood was collected as follows: before application, and after the first, fourth and eighth doses (days 0, 2, 5 and 9), and then at different time intervals after termination of the treatment (days 16, 23, 37, 51, 72 and 100). Cortisol, testosterone, epitestosterone, estradiol, dehydroepiandrosterone and its sulfate, 7α- and 7β-hydroxy-dehydroepiandrosterone, luteinizing hormone, follicle-stimulating hormone and sex hormone-binding globulin were measured in blood sera. In the course of treatment 7β-hydroxy-dehydroepiandrosterone was significantly increased; testosterone and gonadotropins were lowered, but only after the first dose. All other significant changes were observed duringthe period after termination of the application:7β-hydroxy-dehydroepiandrosterone remained increased for 28days, 7α-hydroxy-dehydroepiandrosterone, testosterone, estradiol and sex hormone-binding globulin were decreased as late as day 63 and 91, respectively. On the other hand, epitestosterone was significantly increased between days 23 and 100. The levels of all other parameters studied were not significantly changed. The study points to an immediate as well as delayed effect of the short-term transdermal application of 7-oxo-dehydroepiandrosterone on relevant hormonal parameters.

Keywords: delayed effect; epitestosterone; 7-hydroxy-dehydroepiandrosterone; 7-oxo-dehydroepiandrosterone; transdermal application


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About the article

Corresponding author: Dr. Jarmila Šulcová, Institute of Endocrinology, Národní 8, 116 94 Praha 1, Czech Republic Phone: +420-224-905289, Fax: +420-224-905325,

Received: 2004-09-21

Accepted: 2004-11-10

Published Online: 2011-09-21

Published in Print: 2005-04-01

Citation Information: Clinical Chemistry and Laboratory Medicine (CCLM), Volume 43, Issue 2, Pages 221–227, ISSN (Online) 1437-4331, ISSN (Print) 1434-6621, DOI: https://doi.org/10.1515/CCLM.2005.038.

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