Results 121 to 130 of about 101,465 (281)

The Familial Clustering of Age at Menarche in Extended Twin Families [PDF]

open access: yes, 2007
The timing of puberty is complex, possibly involving many genetic factors that may interact with environmental influences. Familial resemblance for age at menarche was studied in a sample of 4,995 female twins, 1,296 sisters, 2,946 mothers and 635 female
A Must   +26 more
core   +6 more sources

Dynamic changes in Ccn3 expression across the limbic forebrain through the mouse estrous cycle and during lactation

open access: yesJournal of Neuroendocrinology, EarlyView.
Abstract Cellular communication network factor 3 (CCN3), also known as nephroblastoma overexpressed (NOV), is an adipocytokine that has recently been suggested to be secreted selectively by hypothalamic arcuate nucleus kisspeptin (ARNKISS) neurons to protect bone density during lactation. Using RNAscope hybridization, we have examined the expression of
Shel‐Hwa Yeo   +5 more
wiley   +1 more source

Association between MKRN3 and LIN28B polymorphisms and precocious puberty

open access: yesBMC Genetics, 2018
Background The present study aimed to investigate the association between MKRN3 and LIN28B gene polymorphisms and precocious puberty in Korean boys and girls.
Bo Ram Yi   +9 more
doaj   +1 more source

MKRN3 and KISS1R mutations in precocious and early puberty

open access: yesItalian Journal of Pediatrics, 2020
Background Pubertal timing is known to be influenced by interactions among various genetic, nutritional, environmental and socio-economic factors, although the ultimate mechanisms underlying the increase in pulsatile GnRH secretion at puberty have yet to
S. Pagani   +8 more
semanticscholar   +1 more source

Atualização em etiologia, diagnóstico e manejo da precocidade sexual [PDF]

open access: yes, 2008
Precocious puberty is defined as the development of secondary sexual characteristics before the age of 8 years in girls and 9 years in boys. Gonadotropin-dependent precocious puberty (GDPP) results from the premature activation of the hypothalamic ...
ARNHOLD, Ivo J. P.   +3 more
core   +2 more sources

Narcolepsy and rapid eye movement sleep

open access: yesJournal of Sleep Research, Volume 34, Issue 2, April 2025.
Summary Since the first description of narcolepsy at the end of the 19th Century, great progress has been made. The disease is nowadays distinguished as narcolepsy type 1 and type 2. In the 1960s, the discovery of rapid eye movement sleep at sleep onset led to improved understanding of core sleep‐related disease symptoms of the disease (excessive ...
Francesco Biscarini   +4 more
wiley   +1 more source

The Age Distribution among Children Seeking Medical Treatment for Precocious Puberty in Taiwan

open access: yesInternational Journal of Environmental Research and Public Health, 2020
Objective: Children with precocious puberty (PP) may have increased physiological and psychological problems. In this study, we aimed to explore the trend of parents seeking medical care for their children with precocious puberty.
P. Su   +3 more
semanticscholar   +1 more source

Teen Unions and Intimate Partner Violence in South America

open access: yesPopulation and Development Review, EarlyView.
Abstract Precocious exits from adolescence via early union formation are often argued to represent a strong risk factor for intimate partner violence (IPV) victimization. However, causal evidence for this claim is scant. This study examines the impact of teen union formation (before age 18) on experiences of IPV in Brazil and Colombia, where early ...
ORSOLA TORRISI
wiley   +1 more source

QCD String formation and the Casimir Energy [PDF]

open access: yes, 2004
Three distinct scales are identified in the excitation spectrum of the gluon field around a static quark-antiquark pair as the color source separation R is varied. The spectrum, with string-like excitations on the largest length scales of 2-3 fm, provides clues in its rich fine structure for developing an effective bosonic string description.
arxiv   +1 more source

LSD1 is essential for oocyte meiotic progression by regulating CDC25B expression in mice [PDF]

open access: yes, 2015
Mammalian oocytes are arrested at prophase I until puberty when hormonal signals induce the resumption of meiosis I and progression to meiosis II.
Chen, T   +8 more
core   +1 more source

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