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DHEA reverses increases bone mass in women.



Fifty-five men and 58 women (aged 65-75 years) were randomly assigned to receive, in double-blind fashion, 50 mg per day of dehydroepiandrosterone (DHEA DHEA dehydroepiandrosterone.

DHEA
abbr.
dehydroepiandrosterone


DHEA,
n dehydroepiandrosterone, a hormone precursor, exists naturally in yams.
) or placebo for one year. Thereafter, all participants received 50 mg per day of DHEA for an additional year. All participants received daily 640 IU of vitamin D and 700 mg of calcium. In women, mean lumbar spine bone mineral density bone mineral density
n.
See bone density.


bone mineral density A measurement of bone mass, expressed as the amount of mineral–in grams divided by the area scanned in cm2. See Bone densitometry.
 (BMD BMD

In currencies, this is the abbreviation for the Bermudian Dollar.

Notes:
The currency market, also known as the Foreign Exchange market, is the largest financial market in the world, with a daily average volume of over US $1 trillion.
) increased by 1.9% (p = 0.0003 compared with baseline) during the first year in the DHEA group and increased by 0.8% in the placebo group (p = 0.03 for the difference in the change between groups). After two years, mean spine BMD increased by a total of 3.6% in the DHEA group. Hip BMD did not change. In men, there were no differences in BMD between DHEA and placebo.

Comment: DHEA is an androgen produced in women primarily by the adrenal glands and to a lesser extent by the ovaries Ovaries
The female sex organs that make eggs and female hormones.

Mentioned in: Choriocarcinoma

ovaries (ō´v
. It is metabolized in part to estrogen and testosterone. In addition, DHEA appears to have physiological actions that are unrelated to its function as a precursor hormone, including stimulation of osteoblasts Osteoblasts
Cells in the body that build new bone tissue.

Mentioned in: Bone Grafting, Osteoporosis
. The results of the present study indicate that DHEA can increase bone mass in elderly women, although it was not effective in men.

Weiss EP et al. Dehydroepiandrosterone replacement therapy in older adults: 1- and 2-y effects on bone. Am J Clin Nutr. 2009;89:1459-1467.

by Alan R. Gaby, MD

drgaby@earthlink.net
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Title Annotation:Literature Review & Commentary
Author:Gaby, Alan R.
Publication:Townsend Letter
Article Type:Brief article
Geographic Code:1USA
Date:Nov 1, 2009
Words:243
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DHEA improves bone density in women.

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