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Insulin-like growth factors I and II in healthy women with and without established osteoporosis.

Abstract：

:We measured serum concentrations of insulin-like growth factors I and II (IGF-I and IGF-II) by radioimmunoassay in 107 healthy women aged 28-78 years and in 116 women with established osteoporosis. The women with established osteoporosis were randomized to a 1-year double-blind, placebo-controlled treatment with continuous estrogen/progestogen, anabolic steroids, salmon calcitonin or placebo and the IGFs were measured every 6 months. Women less than 35 years of age had 29% higher levels of IGF-I (p < 0.001) as compared to women above that age. For women more than 35 years of age, we found no correlation between IGF-I and age (r = 0.02). Correspondingly, we found no significant changes in serum IGF-I in 10 women, who were followed with serial measurements of IGFs every 3 months from 2 years before to 1 year after menopause; IGF-II revealed no correlation with age (r = 0.04). In the group of 116 women with established osteoporosis, IGF-I was 30% lower (p < 0.01) as compared to a group of 19 height-, weight- and age-matched nonfractured women (mean age 64 years). The IGF-II levels were equal in the two groups. Over the 1-year therapeutic intervention period, an increase in IGF-I of 13-15% (p < 0.05) was seen in the nandrolone decanoate-treated group. The same tendency was seen for hormone replacement therapy, although it was not significant. In conclusion, the serum level of IGF-I is high in young women, when peak bone mass is attained, and low in postmenopausal women with established osteoporosis.

journal_name

Eur J Endocrinol

journal_title

European journal of endocrinology

authors

Ravn P,Overgaard K,Spencer EM,Christiansen C

doi

10.1530/eje.0.1320313

subject

Has Abstract

pub_date

1995-03-01 00:00:00

pages

313-9

issue

3

eissn

0804-4643

issn

1479-683X

journal_volume

132

pub_type

临床试验,杂志文章,随机对照试验

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