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Estro-progestin supplementation enhances the growth hormone secretory responsiveness to ghrelin infusion in postmenopausal women.

Abstract：

OBJECTIVE:To assess the effects of estro-progestin supplementation on ghrelin-mediated GH release, we studied the consequence of ghrelin or saline injection before and after 60 days of hormone therapy or placebo administration in postmenopausal subjects. DESIGN:A prospective double blind, placebo-controlled, and parallel cohort study. SETTING:Catholic University of Sacred Heart, Operative Division of Endocrinological Gynecology. PATIENT(S):Eighteen postmenopausal women participated in the study. INTERVENTION(S):Ten women were randomized to receive estro-progestin treatment (2 mg of hemihydrate E(2) and 10 mg of dydrogesterone in a continuous sequential regimen); eight women were treated with placebo. All patients underwent in a randomized order a ghrelin test (1 microg/kg IV bolus) or a saline infusion (2-mL IV bolus) on two different days, before and after 60 days of treatment. MAIN OUTCOME MEASURE(S):Basal hormonal assays, including ghrelin basal levels. The GH levels were measured at baseline and after 15, 30, 60, 90 minutes of ghrelin or saline injection. RESULT(S):The acute ghrelin injection released a notable GH secretion in all postmenopausal women. After estro-progestin therapy the ghrelin-stimulated GH response was significantly higher than before treatment. In particular, the percent increase of ghrelin GH-releasing effect, expressed as incremental area under the curve (AUCi-GH) was more than 50% after hormone therapy. CONCLUSION(S):In postmenopausal women estro-progestin treatment clearly influenced the ghrelin-stimulated GH secretion.

journal_name

Fertil Steril

journal_title

Fertility and sterility

authors

Villa P,Costantini B,Perri C,Suriano R,Ricciardi L,Lanzone A

doi

10.1016/j.fertnstert.2007.02.042

subject

Has Abstract

pub_date

2008-02-01 00:00:00

pages

398-403

issue

2

eissn

0015-0282

issn

1556-5653

pii

S0015-0282(07)00512-2

journal_volume

89

pub_type

杂志文章,随机对照试验

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