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- Title
LH Dynamics in Overweight Girls with Premature Adrenarche and Slowly Progressive Sexual Precocity.
- Authors
Bordini, Brian; Littlejohn, Elizabeth; Rosenfield, Robert L.
- Abstract
Background. Excess adiposity and premature adrenarche (PA) are risk factors for the development of polycystic ovary syndrome (PCOS). Methods. Girls with slowly progressive precocious breast development, who were overweight and had PA (SPPOPA, 6.2- 8.2 years, n = 5), overweight PA (6.6-10.8 years, n = 7), and overweight premenarcheal controls (OW-PUB, 10.6-12.8 years, n = 8) underwent hormonal sleep testing and GnRH agonist (GnRHag) and ACTH tests. Results. Despite an insignificant sleeprelated increase in LH and prepubertal baseline hormone levels, SPPOPA peak LH and estradiol responses to GnRHag were intermediate between those of PA andOW-PUB, the LHbeing significantly different fromboth. Conclusions. GnRHag tests indicate that SPPOPA is a slowly progressive form of true puberty with blunted LH dynamics. These results argue against the prepubertal hyperandrogenism of excess adiposity or PA enhancing LH secretion or causing ovarian hyperandrogenism prior to menarche. Excess adiposity may contribute to both the early onset and slow progression of puberty.
- Subjects
POLYCYSTIC ovary syndrome; PRECOCIOUS puberty; OBESITY in women; GONADOTROPIN; TESTOSTERONE; BODY mass index; ANALYSIS of variance; DISEASE risk factors
- Publication
International Journal of Pediatric Endocrinology, 2010, p1
- ISSN
1687-9848
- Publication type
Article
- DOI
10.1155/2010/724696