Results 11 to 20 of about 286,655 (306)
Journal of Clinical Endocrinology & Metabolism, 1996 Delayed puberty can be defined as the absence of any signs of puberty in subjects that have attained an age at the upper limit (+2DS) for the onset of puberty, that means 13 years in girls and 14 years in boys. The causes of delayed puberty can be classified into three groups, functional temporary impairment in gonadotropin and sex steroid secretion ...
ANTONIAZZI, Franco +2 more
openaire +5 more sources
European Journal of Endocrinology, 2008 Puberty is the result of increasing pulsatile secretion of the hypothalamic gonadotropin releasing hormone (GnRH), which stimulates the release of gonadotropins and in turn gonadal activity.In general in females, development of secondary sex characteristics due to the activity of the gonadal axis, i.e., the growth of breasts, is the result of exposure ...
Eveline M, Delemarre +2 more
openaire +2 more sources
The effects of estrogen induction therapy on pubertal presentations in turner syndrome patients
Taiwanese Journal of Obstetrics & Gynecology, 2022 Objective: In this study, we investigated various pubertal presentations and progressions before and after estrogen induction therapy and the correlations with Turner syndrome karyotypes. Materials and methods: We reviewed the medical records of patients
Yi-Chen Lee +7 more
doaj +1 more source
Pubertal presentation in seven patients with congenital adrenal hyperplasia due to P450 Oxidoreductase deficiency [PDF]
, 2010 Context: P450 oxidoreductase (POR) is a crucial electron donor to all microsomal P450 cytochrome (CYP) enzymes including 17α-hydroxylase (CYP17A1), 21-hydroxylase (CYP21A2) and P450 aromatase.
Adachi +59 more
core +2 more sources
Acta Medica Iranica, 2022 Chronic kidney diseases affect sex hormones, and thus it is now hypothesized abnormal puberty phenomenon in adolescents suffering renal failure. The primary study endpoint was to assess the frequency of disorders related to the clinical incidence of ...
Davood Amirkashani +2 more
doaj +1 more source
Puberty process in children born from Assisted Reproductive Technologies: a review study [PDF]
Majallah-i Zanān, Māmā̓ī va Nāzā̓ī-i Īrān, 2023 Introduction: The quality of puberty can affect the sexual health and fertility of children. There is limited evidence about the risks associated with the use of assisted reproductive methods (ART) on the process of puberty.
Mitra Savabi esfahani +2 more
doaj +1 more source
The relationship between HSP70 and level of leptin and luteinizing hormones in female rats exposed to chronic and acute heat stress [PDF]
Iraqi Journal of Veterinary Sciences, 2020 The current search experiments designed to study the effect of chronic and acute heat stress on the relationship between HSP70, leptin and luteinizing hormones level in female rats.
Hiyam N. Matty, Ashwaq A. Hassan
doaj +1 more source
Perception of precocious puberty among school-aged children in South Korea with the experience of treatment for precocious puberty: a Q methodological approach [PDF]
Child Health Nursing Research, 2023 Purpose This study aimed to investigate the perceptions of precocious puberty and elucidate the distinct characteristics of each type of perception related to precocious puberty among school-aged children who had undergone treatment for the condition ...
Sun Jung Park, Hye Ri Nam, Eun Ju Choi
doaj +1 more source
Parent-of-origin-specific allelic associations among 106 genomic loci for age at menarche. [PDF]
, 2014 Age at menarche is a marker of timing of puberty in females. It varies widely between individuals, is a heritable trait and is associated with risks for obesity, type 2 diabetes, cardiovascular disease, breast cancer and all-cause mortality.
A Kong +271 more
core +7 more sources
BMC Public Health, 2017 Background It is well known that excess adiposity during childhood may influence pubertal development. However, the extent to which body compositions vary in throughout puberty in boys and girls is currently unknown.
Fang He +5 more
doaj +1 more source