Results 131 to 140 of about 669,213 (305)
The Anatomical Record, EarlyView.Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga +4 more
wiley +1 more source
Silent Spring - the lost call [PDF]
, 2008 The "silence" in Rachel Carson's Silent Spring1 alludes to the demise of bird populations through reproductive problems and death resulting from exposure to the pesticides of that time, many of which are endocrine active.
Mary Ann Ottinger, Michael J. Quinn
core
The “costly son” hypothesis: Sons exacerbate obstetrical dilemmas in humans and other mammals
The Anatomical Record, EarlyView.Abstract Human childbirth has often been considered uniquely difficult among mammals, yet recent evidence suggests that obstructed labor and fetopelvic disproportion are widespread across placental mammals. Here, we propose the “costly son” hypothesis: because male offspring are typically larger at birth, they impose greater obstetric risk on mothers ...
Nicole D. S. Grunstra +1 more
wiley +1 more source
Animal Research and One Health, EarlyView.This study delineates the early sex differentiation timeline in the northern snakehead (Channa argus). These findings provide a foundation for future sex‐control breeding in this economically important species. ABSTRACT The northern snakehead (Channa argus) is an economically important aquaculture species in China.
Chaonan Sun +6 more
wiley +1 more source
Isolation and characterization of androgen receptors from male target cells [PDF]
, 1982 Androgens exert their action after binding to cytoplasmic receptors resulting in the formation of androgenreceptor complexes. This initial event is followed by activation, translocation to the nucleus and interaction with chromatin acceptor sites of the ...
Foekens, J.A. (John)
core +1 more source
Follicle Stimulating Hormone in Cattle Breeding: Fundamentals, Innovations, and Scope
Animal 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
BiomedicinesBackground/Objectives: Flavonoids are common ubiquitous components of plants and are consumed by humans and livestock in their diets. Many different activities have been proposed for a variety of flavonoids that play a role in the benefits of a plant ...
Steven K. Nordeen +5 more
doaj +1 more source
Androgen receptor dysfunction in human androgen insensitivity
Trends in Endocrinology & Metabolism, 1995 The androgen insensitivity syndromes comprise a spectrum of phenotypic abnormalities in male sex differentiation and development that result from target tissue resistance to androgen action due to molecular lesions in the X-chromosome-linked androgen receptor gene.
openaire +2 more sources
Animal Research and One Health, EarlyView.This review critically evaluates clotrimazole as a potential antifungal for finfish aquaculture, highlighting strong mechanistic and in vitro efficacy against aquatic mycoses alongside major gaps in in vivo evidence, toxicokinetics, residue safety, and environmental risk, outlining priorities for responsible therapeutic development and regulatory ...
Arya Sen +2 more
wiley +1 more source
Roles of estrogen and its receptors in polycystic ovary syndrome
Frontiers in Cell and Developmental BiologyPolycystic ovary syndrome (PCOS) is an endocrine disorder characterized by abnormal steroid hormone levels in peripheral blood and poor-quality oocytes.
Yao Xu +7 more
doaj +1 more source