Results 81 to 90 of about 175,765 (268)

Determining the timeline of gonadal and genital differentiation in male and female equine fetuses allows for early detection and intervention in malformations

The Anatomical Record, EarlyView.
Abstract Sexual differentiation in the equine fetus involves coordinated morphogenetic processes that shape both the gonads and the genital ducts. Although the formation of testes and ovaries has been relatively well documented, the temporal dynamics and morphometric patterns of the mesonephric (Wolffian) and paramesonephric (Müllerian) ducts remain ...
Tais Harumi de Castro Sasahara, Silvio Pires Gomes, Fabio Cesar Magioli Abdala, Bruno Cesar Schimming, Maria Angelica Miglino   +4 more
wiley   +1 more source

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

The 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, Nicolae Radu, Mugurel Constantin Rusu   +2 more
wiley   +1 more source

Androgens and the androgen receptor (AR)

, 2013
Introduction Androgens are sex steroid hormones that are produced in both males and females, albeit in different amounts. Androgens are essential for development and maintenance of the male phenotype (1), and are also important in females, where they can either act directly via the androgen receptor (AR) or indirectly as metabolic precursors for ...
Moore, N., Centenera, M., Butler, L., Hickey, T., Tilley, W.   +4 more
openaire   +2 more sources

Hyperostosis frontalis interna: Observed patterns, prevalence, and dementia associations in older adults

The Anatomical Record, EarlyView.
Abstract Hyperostosis frontalis interna (HFI) is a frequently underrecognized condition characterized by overgrowth of the frontal endocranium, most commonly observed in post‐menopausal women. Although its etiology remains unclear, hormonal influences and a possible relationship with neurocognitive changes have been proposed.
Danielle Felsberg, Kira Morgan, Rickey‐Levon Burch, Madelyn Furr, Zachary Tyson, Steven Lesh   +5 more
wiley   +1 more source

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

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, Grazyelle Sebrenski da Silva, Maria Inês Braga de Oliveira, Jaydione Luiz Marcon, Ruben Dario Morales Gamba   +4 more
wiley   +1 more source

Clinical, Ovulatory and Histological Effect of a Postnatal Testosterone Treatment in Female Dogs

Animals
It has been described in some female mammalian species that postnatal androgenization causes reproductive structural and functional abnormalities. The objective of this study was to describe the clinical, ovulatory and genital effects of postnatal ...
Cynthia Marchetti, Mariela Grisolia-Romero, Marcelo Priotto, Marcela Faya, Cristina Gobello   +4 more
doaj   +1 more source

Sex Disparities in Asthma Development and Clinical Outcomes: Implications for Treatment Strategies

Journal of Asthma and Allergy, 2022
Guo-Qiang Zhang,1 Saliha Selin Özuygur Ermis,1,2 Madeleine Rådinger,1 Apostolos Bossios,3,4 Hannu Kankaanranta,1,5,6 Bright Nwaru1,7 1Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden ...
Zhang GQ, Özuygur Ermis SS, Rådinger M, Bossios A, Kankaanranta H, Nwaru B   +5 more
doaj  

Histological Characterization and Comparative Transcriptomic Analysis of Gonads During Early Sex Differentiation in the Northern Snakehead (Channa argus)

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, Donglei Sun, Haishen Wen, Xin Qi, Chao Li, Xiaoyan Zhang, Yun Li   +6 more
wiley   +1 more source

Androgen-Induced, β-Catenin-Activated Hepatocellular Adenomatosis with Spontaneous External Rupture

Diagnostics
Androgens have long been recognized as oncogenic agents. They can induce both benign and malignant hepatocellular neoplasms, including hepatocellular adenoma (HCA) and hepatocellular carcinoma, though the underlying mechanisms remain unclear.
Jialing Huang, Towhid Ali, David M. Feldman, Neil D. Theise   +3 more
doaj   +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, Hubdar Ali Kolachi, Jesse Oluwaseun Ayantoye, Xiaomeng Zhang, Muhammad Usman Mehmood, Rajilan Hilali Shanga, Pengcheng Wan, Xueming Zhao   +7 more
wiley   +1 more source