نتایج جستجو برای: early puberty

تعداد نتایج: 693749  

Journal: :Human reproduction update 2004
Jean-Claude Carel Najiba Lahlou Marc Roger Jean Louis Chaussain

Precocious puberty results mostly from the precocious activation of the gonadotropic axis. Although the age limits have recently been discussed, most physicians consider that onset of pubertal development before the age of 8 years in a girl or 9 years in a boy warrants at least a clinical and bone age evaluation by a paediatric endocrinologist. The major concern in precocious puberty is the und...

Journal: :مجله ایرانی آموزش در علوم پزشکی 0
زهرا محمدزاده zahra mohammadzadeh* زهرا علامه zahra allame شاهرخی s shahroki حمیدرضا عریضی hamidreza oriezi محمدرضا مرعسی mohammad reza marasi

background. teenagers, a huge age group in developing countries, face a period with many physical, mental and social problems. appropriate health education concerning their periodic development is of importance in community health services. the present study performed a comparative assessment of subjects’ knowledge, attitude and practice, concerning puberty health programs. method. in an interv...

Journal: :Molecular and cellular endocrinology 2015
Sheila J Semaan Alexander S Kauffman

Puberty is governed by the secretion of gonadotropin releasing hormone (GnRH), but the roles and identities of upstream neuropeptides that control and time puberty remain poorly understood. Indeed, how various reproductive neural gene systems change before and during puberty, and in relation to one another, is not well-characterized. We detailed the daily pubertal profile (from postnatal day [P...

Journal: :international journal of pediatrics 0
mohammad rasool ahangaran associate professor, university of tehran, campus farabi, tehran, iran. zahra abbasi ma,jurisprudence and islamic law, tehran university, tehran.

the age of criminal responsibility of children in the islamic penalties act has been determined as religious bulugh (puberty) nasab. according to this, criminal authorities hold girls criminally liable and punishable at 9 complete lunar years and boys at 15 complete lunar years. unfortunately, our legislator has set criminal responsibility of children based on sexual maturity; therefore, thousa...

Journal: :Archives of disease in childhood 1961
M MCGEORGE D V CONNOR

Sexual precocity is considered to be present when indications of genital maturation become apparent in boys before the age of 10 years and in girls before the age of 8 years (Seckel, 1946). It is customary to divide these cases into two groups. In those with true precocious puberty maturation with spermatogenesis or ovulation has occurred in a normal manner, but at an abnormally early age; in t...

2007
MURRAY McGEORGE D. V. CONNOR

Sexual precocity is considered to be present when indications of genital maturation become apparent in boys before the age of 10 years and in girls before the age of 8 years (Seckel, 1946). It is customary to divide these cases into two groups. In those with true precocious puberty maturation with spermatogenesis or ovulation has occurred in a normal manner, but at an abnormally early age; in t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زبانهای خارجی 1388

this study investigated the potential role of age in inductive and deductive grammar learning among iranian foreign language learners. the experimental population consisted of our randomly selected samples including two groups of children (with age of exposure to english within 8-13), and two groups of adults (with age of exposure to english within 11-13). thus, the comparison was between ch...

Journal: :Hormones and behavior 2011
Megan Hastings Hagenauer Andrea F King Bernard Possidente Marilyn Y McGinnis Augustus R Lumia Elizabeth M Peckham Theresa M Lee

During puberty, humans develop a later chronotype, exhibiting a phase-delayed daily rest/activity rhythm. The purpose of this study was to determine: 1) whether similar changes in chronotype occur during puberty in a laboratory rodent species, 2) whether these changes are due to pubertal hormones affecting the circadian timekeeping system. We tracked the phasing and distribution of wheel-runnin...

Journal: :The Journal of clinical endocrinology and metabolism 1997
A M Andersson A Juul J H Petersen J Müller N P Groome N E Skakkebaek

Inhibin B levels were measured in serum from 400 healthy Danish prepubertal, pubertal, and adolescent males, aged 6-20 yr, in a cross-sectional study using a recently developed immunoassay that is specific for inhibin B, the physiologically important inhibin form in men. In addition, serum levels of FSH, LH, testosterone, and estradiol levels were measured. Serum levels of inhibin B, FSH, LH, t...

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