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Effects of Dehydroepiandrosterone Therapy on Pubic Hair Growth ...

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1188 Binder et al. DHEA Replacement in Young Females J Clin Endocrinol Metab, April 2009, 94(4):1182–1190<br />

FIG. 3. Chr<strong>on</strong>ological changes <str<strong>on</strong>g>of</str<strong>on</strong>g> the androgen levels in serum (A) and the daily androgen amount<br />

excreted in the urine (B) from baseline to 12 m<strong>on</strong>th therapy. The boxes indicate the 50% c<strong>on</strong>fidence<br />

interval, whiskers the 100% c<strong>on</strong>fidence interval, and lines inside the boxes the median. The grayshadowed<br />

areas represent the 90% c<strong>on</strong>fidence interval <str<strong>on</strong>g>of</str<strong>on</strong>g> a healthy age-related female reference<br />

populati<strong>on</strong> (22–25).<br />

DHEA group, whereas these parameters remained pathologically<br />

low in the placebo group. DHEA therapy was safe and well<br />

tolerated.<br />

Adolescence is the time <str<strong>on</strong>g>of</str<strong>on</strong>g> the <strong>on</strong>ly DHEA peak during the<br />

human life span. The normal mean serum DHEAS level at this<br />

age is at 2000 ng/ml. Therefore, DHEA deficiency is most severe<br />

when adolescent individuals are affected by adrenal insufficiency:<br />

our patients had serum DHEAS levels less than 200 ng/ml.<br />

The therapeutic substituti<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> a severe deficiency for a horm<strong>on</strong>e<br />

should cause positive effects if the horm<strong>on</strong>e is <str<strong>on</strong>g>of</str<strong>on</strong>g> any<br />

relevant physiological value for the human being. DHEA is the<br />

major source <str<strong>on</strong>g>of</str<strong>on</strong>g> androgens in females.<br />

Most <str<strong>on</strong>g>of</str<strong>on</strong>g> the girls treated had no pubarche<br />

or an immature stage <str<strong>on</strong>g>of</str<strong>on</strong>g> pubic hair development<br />

because <str<strong>on</strong>g>of</str<strong>on</strong>g> a lack <str<strong>on</strong>g>of</str<strong>on</strong>g> androgens at<br />

baseline. They experienced a clear<br />

progress <str<strong>on</strong>g>of</str<strong>on</strong>g> sexual hair growth during the<br />

trial.<br />

Interestingly, these clinical changes<br />

happened in the absence <str<strong>on</strong>g>of</str<strong>on</strong>g> a measurable<br />

normalizati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> testoster<strong>on</strong>e in the morning<br />

serum, whereas the overall androgen<br />

metabolite excreti<strong>on</strong> in the urine (C19 metabolites)<br />

reached a normal level. In additi<strong>on</strong>,<br />

morning serum levels <str<strong>on</strong>g>of</str<strong>on</strong>g> androstanediol<br />

glucur<strong>on</strong>ide normalized in the DHEA<br />

group, which has been proposed as a marker<br />

<str<strong>on</strong>g>of</str<strong>on</strong>g> peripheral androgen producti<strong>on</strong> and acti<strong>on</strong><br />

(28). These observati<strong>on</strong>s suggest that<br />

normalizati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> morning serum DHEAS<br />

and androstenedi<strong>on</strong>e was sufficient to increase<br />

locally produced testoster<strong>on</strong>e and dihydrotestoster<strong>on</strong>e<br />

to an extent that enabled<br />

sexual hair growth. The same discrepancy<br />

between normal amounts <str<strong>on</strong>g>of</str<strong>on</strong>g> androgen metabolites<br />

and low-active androgens has been<br />

observed in DHEA trials with DHEA-deficient<br />

women or healthy postmenopausal<br />

women in the past (10, 29).<br />

Beside sexual hair growth in puberty,<br />

we could c<strong>on</strong>firm that DHEA and androgens<br />

have beneficial effects <strong>on</strong> the psychological<br />

well-being. The exact biochemical<br />

path that is used by DHEA to cause such<br />

effects is still obscure, and a separati<strong>on</strong><br />

from effects caused by metabolites <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

DHEA is difficult. Such effects are <str<strong>on</strong>g>of</str<strong>on</strong>g> most<br />

importance in young patients having a<br />

chr<strong>on</strong>ic disease.<br />

This is the first c<strong>on</strong>trolled trial analyzing<br />

replacement <str<strong>on</strong>g>of</str<strong>on</strong>g> DHEA in pediatric patients.<br />

Craen et al. (16) reported <strong>on</strong> the individual<br />

treatment results in six girls who had hypopituitarism<br />

and low DHEAS serum levels using<br />

15 mg DHEAS /m 2 body surface. Central<br />

adrenal insufficiency was present in some,<br />

but not in all, <str<strong>on</strong>g>of</str<strong>on</strong>g> these patients according to<br />

the abstract published (16). Durati<strong>on</strong> <str<strong>on</strong>g>of</str<strong>on</strong>g> treatment was between<br />

6 and 28 m<strong>on</strong>ths. In this preliminary report, they observed<br />

an increase <str<strong>on</strong>g>of</str<strong>on</strong>g> serum DHEAS and a progress <str<strong>on</strong>g>of</str<strong>on</strong>g> pubic<br />

hair development to PH2 or more in all patients. Wit et al. (8)<br />

reported their experience with the individual treatment <str<strong>on</strong>g>of</str<strong>on</strong>g> four<br />

girls with central or peripheral adrenal insufficiency (age<br />

range 15–17.3 yr) using DHEAS at a dose <str<strong>on</strong>g>of</str<strong>on</strong>g> 25–50 mg orally.<br />

Treatment durati<strong>on</strong> was between 2 and 4 yr. They reported a<br />

positive effect <strong>on</strong> pubic hair development and normalizati<strong>on</strong><br />

<str<strong>on</strong>g>of</str<strong>on</strong>g> DHEAS serum levels. Adverse effects <str<strong>on</strong>g>of</str<strong>on</strong>g> DHEAS were not<br />

reported in these two studies.

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