Results 21 to 30 of about 8,925 (264)

Molecular mechanisms underlying sexual precocity in Chinese mitten crab (Eriocheir sinensis): aldh1a1 regulates retinol metabolism via miRNAs in the hepatopancreas

open access: goldAquaculture Reports
Precocial Eriocheir sinensis, showing advanced sexual maturity, are a serious impediment to crab industry. The aim of this study was to identify miRNAs and its related pathways involved in regulation of precocity in E. sinensis.
Xiaoyan Jia   +8 more
doaj   +2 more sources

Genetic study of quantitative traits supports the use of Guzerá as dual-purpose cattle [PDF]

open access: yesAnimal Bioscience, 2022
Objective The aim of this study was to estimate genetic parameters for 305-day cumulative milk yield and components, growth, and reproductive traits in Guzerá cattle.
Eula Regina Carrara   +9 more
doaj   +1 more source

Central precocious puberty in a 3 year-old girl with Phenylketonuria: a rare association? [PDF]

open access: yes, 2014
Background Central precocious puberty (CPP) and phenylketonuria (PKU) are two rare conditions, the latter being the rarer. To date, only one case featuring both these conditions has been reported, and hyperphenylalaninemia was assumed triggering CPP.
Donaldson, Malcolm   +3 more
core   +3 more sources

An unusual presentation of a usual disorder: Van Wyk-Grumbach syndrome

open access: yesIndian Journal of Endocrinology and Metabolism, 2011
Van Wyk-Grumbach syndrome (VWGS) is characterized by juvenile hypothyroidism, delayed bone age, and isosexual precocious puberty. A 10.7-year-old girl presented with premature menarche and isosexual precocity.
Ashu Rastogi   +2 more
doaj   +1 more source

Genetic relationship among reproductive traits in Nellore cattle

open access: yesAnimal, 2015
In order to achieve improvements in production efficiency in livestock, herds of high sexual precocity and good fertility are needed. These traits increase the availability of animals in herd, either for sale or selection, allowing both greater selective
A.R. Guarini   +5 more
doaj   +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

Correlation analysis between PCR-SSCP polymorphisms of luteinizing hormone receptor gene (LHR) and reproductive traits in sheep

open access: yes浙江大学学报. 农业与生命科学版, 2012
The nucleotide sequence and single-strand conformation polymorphism (SSCP) in exon 11 of luteinizing hormone receptor (LHR) gene were studied in Hu sheep (sexual precocity and high prolificacy breeds), Jinzhong sheep and Lingchuan semi-fine wool sheep ...
WANG Li-hong   +5 more
doaj   +1 more source

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