Active clinical trials for "Puberty, Precocious"

OBJECTIVES: I. Evaluate the sleep-entrained patterns of gonadotropin-releasing hormone (GnRH) and sex steroid secretion in normal and hypogonadal children. II. Examine the acute effects of sex steroids on the sleep-entrained patterns of GnRH secretion in pubertal children and normal adults, either by stimulation of endogenous production with pulsatile injection or by intravenous infusion of GnRH. III. Examine the role of endogenous opioids by means of opioid receptor blockade in the sex steroid regulation of GnRH secretion in pubertal children and normal adults.

childhood obesity and early puberty are closely related, but existing reports usually focus on their relationship from the perspective of phenotype. This study was designed to investigate the association between obesity-related genic polymorphisms and the risk of early puberty in Chinese Han girls.

The purpose of this study is to evaluate the long-term safety and efficacy of Enantone in the treatment of CPP in Chinese participants.

GnRH agonists are used in the treatment of precocious puberty in order to improve adult height.However,the psychosocial impact of precocious puberty is often used by the clinician at diagnosis to justify treatment, but can not yet be properly assessed. It can not be considered as a rational neither for the indication to treatment, nor to assess its potential efficacy. The overall objective of this work is to improve the conditions leading to the therapeutic decision and the procedures for monitoring girls with idiopathic central precocious puberty.

The aims of this study are: 1) to identify genes that play a role in human pubertal development and reproduction, 2) to characterize the phenotypic spectrum of patients with these gene defects, and 3) to discern the mode of inheritance for disorders caused by these gene defects. We are specifically interested in genes that cause Kallmann syndrome, idiopathic hypogonadotropic hypogonadism (IHH), precocious (early) puberty, and delayed puberty. Individuals do not have to travel to Boston to participate in this study.

The project aims to establish the normal LH and FSH response to a standardized GnRH dose in healthy girls below 6 years of age, and compares the normal GnRH response to the GnRH response in girls with early puberty development. The novel data may help to determine whether the girl is in early puberty or not. Healthy girls under 6 years of age attending routine examinations including an i.v. line for other causes are included in this study. Our examinations also include bone age determination, Tanner stage determination, and anthropometric measures (height and weight). 10 healthy girls in each of the following age groups: 7-12 months, 12-24 months, 24-36 months, 36-48 months, 48-60 months and 60-72 months are included.

There was a worldwide early trend in girls'age for puberty onset. The timing of puberty onset varies greatly among individuals, and much of this variation is modulated by genetic factors. This study was designed to explored the association of polymorphisms in KISS1/GPR54 pathway genes and the risk of early puberty in Chinese Han girls.

Precocious puberty - the onset of signs of puberty before 8 years of age in girls - is be physically and emotionally devastating for kids and is sometimes caused by an underlying and medical condition. One sign of precocious puberty in small girls is breast development (thelarche). This can persist without other physical changes of puberty, it may continue into precocious puberty, or it may disappear. This project will improve the diagnostics of precocious puberty in girls and improve our ability to identify which girls with thelarche, who will develop precocious puberty and need medical treatment.