Results 91 to 100 of about 286,655 (306)

Influence of body weight on reproductive activity in Sarda female lambs [PDF]

open access: yes, 2005
One way to improve reproductive performance of ewes is through extending its lifetime productivity. Breeding ewe lambs is one method of improving the reproductive performance in the sheep.
Bini, Pier Paolo   +3 more
core   +1 more source

Mapping quantitative trait loci underlying body weight changes that act at different times during high‐fat diet challenge in collaborative cross mice

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Over one billion people worldwide suffer from obesity, and the number is continually rising. Animal models, especially mouse models, are crucial to identifying the genetic components of complex disorders and exploring the potential applications of these genetic findings.
Hanifa J. Abu‐Toamih Atamni   +7 more
wiley   +1 more source

The incidence of early and precocious puberty of children in two Chinese cities: a multi-center prospective cohort study

open access: yesBMC Endocrine Disorders
Background There are no population-based school cohort studies reporting the incidence of early and precocious puberty in China. This study aims to determine the incidence of early and precocious puberty in China.
Yang Chen   +6 more
doaj   +1 more source

Optimization and verification of high‐fat diet formulation for establishing a rat model of obesity‐related precocious puberty

open access: yesAnimal Models and Experimental Medicine, EarlyView.
We identified 45% HFD as the optimal formulation to establish a juvenile rat model of obesity‐related precocious puberty. It elicits robust phenotypic (early vaginal opening, obesity), histological (advanced ovarian development), and endocrine (elevated HPG axis hormones) alterations, with leptin‐mediated GnRH secretion as a core mechanistic driver ...
Jiayi Gong   +5 more
wiley   +1 more source

Donor gender does not affect liver transplantation outcome in children [PDF]

open access: yes, 1990
The liver is recognized as a sex hormone-responsive organ. Gender-specific differences in liver function are known to exist. Recently, a higher failure rate for organs transplanted in adults from female donors to male recipients has been reported.
Gavaler, JS   +3 more
core   +1 more source

The Clinical Spectrum and Neurodevelopmental Pathogenesis of KPTN‐Related Disorder in a Mouse Model

open access: yesAnnals of Neurology, EarlyView.
Objective Pathogenic variants in Kaptin (KPTN) cause KPTN‐related disorder (KRD). KPTN modulates mTOR signaling activation within the KICSTOR complex in response to cellular amino acid levels. We define the clinical spectrum and investigate the developmental pathogenesis of KRD.
Lettie E. Rawlins   +104 more
wiley   +1 more source

Dietary pattern and precocious puberty risk in Chinese girls: a case-control study

open access: yesNutrition Journal
Background The role of dietary intake on precocious puberty remains unclear. This study aimed to investigate the association between the amount and frequency of dietary intake and the risk of precocious puberty in Chinese girls.
Qiuyun Gu   +6 more
doaj   +1 more source

Developmental changes in the histological structure of the testes, and testosterone profiles in male guinea fowls (Numida meleagris) [PDF]

open access: yes, 2017
Owing to the paucity of information on the reproductive biology of guinea fowls, a study involving a total of 66 males was conducted, and documented the developmental changes in histological structure of the testes of guinea cocks from hatching until ...
Abdul-Rahman, Iddriss I.   +2 more
core   +1 more source

A critical reappraisal of the carotid sinus and carotid bulb: Distinguishing neurohistological function from vascular geometry

open access: yesThe Anatomical Record, EarlyView.
This review redefines the carotid bulb (CB) as a variable geometric dilation shaped by hemodynamics and the carotid sinus (CS) as a conserved neurohistological baroreceptor field. Distinguishing these entities clarifies a century of anatomical confusion and links geometry, neurohistology, and clinical interpretation within a unified framework ...
Răzvan Costin Tudose   +2 more
wiley   +1 more source

Environmental chemical exposures and breast cancer [PDF]

open access: yes, 2016
As a hormone-sensitive condition with no single identifiable cause, breast cancer is a major health problem. It is characterized by a wide range of contributing factors and exposures occurring in different combinations and strengths across a lifetime ...
Plant, J, Stanley, E, Voulvoulis, N
core   +2 more sources

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