Document Detail


Effects of treatment with testosterone alone or in combination with estrogen on insulin sensitivity in postmenopausal women.
MedLine Citation:
PMID:  16750207     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Little is known about metabolic effects of testosterone treatment in postmenopausal women. The aim of the study was to compare the treatment effects of testosterone, estrogen, and testosterone plus estrogen on insulin sensitivities, body compositions, and lipid profiles in healthy postmenopausal women. DESIGN: An open, randomized clinical study with parallel group comparison. SETTING: Women's health clinical research unit at a university hospital. PATIENT(S): Sixty-three naturally postmenopausal women participated in the study. INTERVENTION(S): The participants were randomly assigned to 3 months of treatment with testosterone undecanoate (40 mg every second day), estradiol valerate (2 mg daily), or the combination of both. MAIN OUTCOME MEASURE(S): Insulin sensitivity assessed by euglycemic hyperinsulinemic clamp, body composition, and serum lipids. RESULT(S): Insulin-induced glucose disposal was reduced by approximately 20% after treatment with testosterone alone, and after the combined treatment, but not by estrogen alone. Body weight, but not total body fat, increased significantly by about 1 kg in all groups. Lean body mass was significantly increased in the group of combined treatment and tended to be increased by testosterone alone. High-density lipoprotein (HDL)-cholesterol decreased significantly by testosterone treatment. In contrast, HDL-cholesterol increased, whereas low-density lipoprotein (LDL)-cholesterol and lipoprotein-(a) [Lp(a)] decreased with estradiol treatment. CONCLUSION(S): We conclude that 3 months of treatment with testosterone undecanoate in postmenopausal women induces insulin resistance and an adverse serum lipid profile but may increase lean body mass.
Authors:
Hong Zang; Kjell Carlström; Peter Arner; Angelica Lindén Hirschberg
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2006-06-05
Journal Detail:
Title:  Fertility and sterility     Volume:  86     ISSN:  1556-5653     ISO Abbreviation:  Fertil. Steril.     Publication Date:  2006 Jul 
Date Detail:
Created Date:  2006-07-04     Completed Date:  2006-08-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372772     Medline TA:  Fertil Steril     Country:  United States    
Other Details:
Languages:  eng     Pagination:  136-44     Citation Subset:  IM    
Affiliation:
Department of Obstetrics and Gynecology, Karolinska University Hospital, Stockholm, Sweden. hzang@hotmail.com
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MeSH Terms
Descriptor/Qualifier:
Adult
Body Composition / drug effects,  physiology
Drug Combinations
Estrogens / administration & dosage*
Female
Hormone Replacement Therapy / methods*
Humans
Insulin / blood*
Insulin Resistance / physiology*
Middle Aged
Postmenopause / blood*,  drug effects*
Testosterone / administration & dosage*
Chemical
Reg. No./Substance:
0/Drug Combinations; 0/Estrogens; 11061-68-0/Insulin; 58-22-0/Testosterone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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