Results 41 to 50 of about 153,111 (298)

Hormonal control and signaling of the testis of the bat Molossus molossus during the processes of testicular maturation, regression, and recrudescence

open access: yesThe Anatomical Record, EarlyView.
Abstract Molossus molossus, a species of neotropical bat belonging to the Molossidae family, has an annual reproductive cycle that includes two peaks of spermatogenic activity, one in April and another in September, and a period of total testicular regression in December.
Emília M. Soares   +6 more
wiley   +1 more source

Keterlambatan Pubertas

open access: yesSari Pediatri, 2016
Keterlambatan pubertas merupakan masalah penting pada anak karena dapat terjadi keterlambatan pertumbuhan dan maturasi tulang. Diagnosis keterlambatan pubertas ditegakkan berdasarkan anamnesis, pemeriksaan fisik, laboratorium dan radiologi.
Syamsul Azwar
doaj   +1 more source

Heat Stress in Quail: Impacts on Health and Productivity, and Mitigation Strategies

open access: yesAnimal Research and One Health, EarlyView.
Heat stress disrupts physiological homeostasis in quail, inducing oxidative stress, immune dysregulation, and metabolic imbalance, which impair growth, reproduction, product quality, and welfare. Integrating nutritional, environmental, and genetic–epigenetic strategies enhances thermotolerance, sustains productivity, and supports climate‐smart quail ...
T. A. Eletu   +6 more
wiley   +1 more source

Stimulation of hCG protein and mRNA in first trimester villous cytotrophoblast cells in vitro by glycodelin A [PDF]

open access: yes, 2005
Aim: Human chorionic gonadotropin (hCG) is produced by fetal trophoblast cells and secreted into maternal circulation mainly in the first trimester of pregnancy.
Richter, Dagmar-Ulrike   +15 more
core   +1 more source

Gonadotropin-releasing hormone signaling: An information theoretic approach

open access: yes, 2017
Gonadotropin-releasing hormone (GnRH) is a peptide hormone that mediates central control of reproduction, acting via G-protein coupled receptors that are primarily Gq coupled and mediate GnRH effects on the synthesis and secretion of luteinizing hormone ...
KL Garner (21852074)   +4 more
core   +3 more sources

Melatonin influences reproduction in the sapphire devil Chrysiptera cyanea via regulation of dopamine 2b receptor transcription

open access: yesFrontiers in Marine Science
Melatonin and dopamine participate in the regulation of reproduction-related hormone/peptide synthesis and secretion at the hypothalamic–pituitary–gonadal axis in fish.
Jun-Hwan Byun   +8 more
doaj   +1 more source

Follicle Stimulating Hormone in Cattle Breeding: Fundamentals, Innovations, and Scope

open access: yesAnimal Research and One Health, EarlyView.
FSH is crucial in cattle reproduction, with exogenous administration enhancing breeding and embryo production. Recombinant FSH offers advantages over pituitary‐extracted variants, including fewer injections, reduced stress, and safer production. These innovations improve breeding efficiency, optimize reproductive outcomes, and contribute to sustainable
Muhammad Shahzad   +7 more
wiley   +1 more source

Establishment of Humanized EFNB2/B3 Murine Models for Investigating Nipah Virus Pathogenesis

open access: yesAnimal Research and One Health, EarlyView.
ABSTRACT Nipah virus (NiV) is a zoonotic paramyxovirus classified as a WHO priority pathogen, which causes severe respiratory disease and encephalitis in humans with high mortality. Currently, no licensed vaccines or specific antiviral therapies are available.
Wei Dong   +6 more
wiley   +1 more source

At the transition from invertebrates to vertebrates a novel GnRH-like peptide emerges in amphioxus [PDF]

open access: yes, 2014
This work was supported by a grant from the Canadian Natural Sciences and Engineering Council (NSERC).Gonadotropin-releasing hormone (GnRH) is a critical reproductive regulator in vertebrates.
Roch, Graeme   +3 more
core   +1 more source

Regulation of MMP2 and MMP9 metalloproteinases by FSH and growth factors in bovine granulosa cells

open access: yesGenetics and Molecular Biology, 2009
Matrix metalloproteinases (MMP) are key enzymes involved in tissue remodeling. Within the ovary, they are believed to play a major role in ovulation, and have been linked to follicle atresia.
Valerio M. Portela   +2 more
doaj  

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