Results 31 to 40 of about 23,359 (215)

Stimulation of TM3 Leydig cell proliferation via GABA_A receptors: A new role for testicular GABA

Reproductive Biology and Endocrinology, 2004
The neurotransmitter gamma-aminobutyric acid (GABA) and subtypes of GABA receptors were recently identified in adult testes. Since adult Leydig cells possess both the GABA biosynthetic enzyme glutamate decarboxylase (GAD), as well as GABAA and GABAB ...
Krieger Annette, Thalhammer Andrea, Doepner Richard FG, Geigerseder Christof, Mayerhofer Artur   +4 more
doaj   +1 more source

Use of in vitro methodology to investigate phthalate effects on the differentiation of seminiferous tubule-associated stem cells to form Leydig cells and on the Leydig cells derived from the stem cells

Frontiers in Toxicology
Introduction: Leydig cells isolated from the testis are able to sustain high levels of testosterone production in vitro, but only for up to 3 days. Such cells are valuable for addressing the acute effects of chemicals on steroidogenic function, but not ...
Kassim Traore, Kassim Traore, Barry Zirkin   +2 more
doaj   +1 more source

Testicular mRNA‐LNP Delivery: A Novel Therapy for Genetic Spermatogenic Disorders

Advanced Science, EarlyView.
In the current study, we developed a novel therapy for genetic spermatogenic disorders. It was revealed that in vivo delivery of mRNA LNP3 could restore spermatogenesis in Msh5D486Y/D486Y and Maps KO mouse models with meiotic arrest. Notably, the offspring without genomic integration was born using ICSI derived from the rescue of Msh5D486Y/D486Y mouse ...
Chenwang Zhang, Nan Liang, Wenbo Li, Shuai Xu, Peng Li, Wanze Ni, Na Li, Sha Han, Ningjing Ou, Haowei Bai, Yuxiang Zhang, Furong Bai, Yifan Sun, Dewei Qian, Xinjie Bu, Erlei Zhi, Ruhui Tian, Yuhua Huang, Jingpeng Zhao, Fujun Zhao, Hao Chen, Zheng Li, Chencheng Yao   +22 more
wiley   +1 more source

Endothelial PDGF Signaling Dysregulation Impairs Testicular Interstitial Homeostasis in Diabetes

Advanced Science, EarlyView.
Testicular endothelial cells (TECs) function as central signaling hubs that coordinate interstitial homeostasis. Diabetes disrupts TEC‐derived PDGF signaling, silences the JUND‐MCL1 survival program in Leydig cells, and impairs peritubular function, leading to fibrosis and testosterone insufficiency.
Wenxiu Zhang, Kai Hong, Yanling Tang, Lina Cui, Xiaojian Lu, Jianxing Cheng, Yangyi Fang, Qiaoling Jiang, Ziyan Zhuang, Songzhan Gao, Hui Jiang, Qiang Liu, Jingtao Guo, Zhe Zhang, Xiaoyan Wang   +14 more
wiley   +1 more source

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

Ursolic Acid Alleviates Orchitis via Modulating Ferroptosis in Peritubular Myoid Cells of Testis

Animal Research and One Health, EarlyView.
Ursolic acid modulates key ferroptosis‐related pathways in the peritubular myoid cells of the testis in forest musk deer. ABSTRACT Chronic stress adversely affects reproductive health, increasing susceptibility to pathologies such as orchitis. Additionally, the maintenance of iron homeostasis is essential for preserving the function of the testicles ...
Yang Wang, Tianqi Jin, Zexin Chen, Ye Gong, Qimin Liu, Zifang Wu, Heran Cao, Yan Li, Yuyan Liu, Tianhao Yang, Zhihong Jiang, Wuzi Dong   +11 more
wiley   +1 more source

Gigantol Improves Cholesterol Metabolism and Progesterone Biosynthesis in MA-10 Leydig Cells

Current Issues in Molecular Biology, 2021
In aging males, androgen production by testicular Leydig cells decreases at a rate of approximately 1% per year. Phenolic compounds may enhance testosterone biosynthesis and delay the onset of male hypogonadism.
Audrey Basque, Ha Tuyen Nguyen, Mohamed Touaibia, Luc J. Martin   +3 more
doaj   +1 more source

SPARK: A webserver for comprehensive search and analysis of testicular single‐cell transcriptomic data covering full lifecycle and pathology

iMetaOmics, EarlyView.
SPARK is an interactive platform hosting 189,232 human testicular single‐cell transcriptomes across normal and infertile conditions. It enables automated, code‐free analysis and visualization, providing a powerful resource to explore cellular and molecular dynamics in male reproduction and infertility.
Lina Cui, Xiaojian Lu, Hui Cai, Ziyan Zhuang, Yifei Guo, Qiaoling Jiang, Zhe Zhang, Hui Jiang, Xiaoyan Wang, Jingtao Guo   +9 more
wiley   +1 more source

Metabolic Coupling Determines the Activity: Comparison of 11β-Hydroxysteroid Dehydrogenase 1 and Its Coupling between Liver Parenchymal Cells and Testicular Leydig Cells. [PDF]

PLoS ONE, 2015
11β-hydroxysteroid dehydrogenase 1 (11β-HSD1) interconverts active 11β-hydroxyl glucocorticoids and inactive 11keto forms. However, its directionality is determined by availability of NADP+/NADPH.
Xingwang Li, Guoxin Hu, Xiaoheng Li, Yi-Yan Wang, Yuan-Yuan Hu, Hongyu Zhou, Syed A Latif, David J Morris, Yanhui Chu, Zhiqiang Zheng, Ren-Shan Ge   +10 more
doaj   +1 more source

Organoids and organ‐on‐a‐chip models for investigating the pathophysiology of the human reproductive system

Interdisciplinary Medicine, EarlyView.
Organoids and organ‐on‐a‐chips are advancing reproductive system research. In the female reproductive system, applications include cancer organoid models, placental chips, and hormone simulation models. For the male reproductive system, research focuses on drug resistance mechanisms, co‐culture platforms, and infertility studies. These refined in vitro
Hongqi Zhang, Shiwen Deng, Fangfang Jin, Jiayao Qu, Xiang Fan, Peng Chen, Xinrong Fan   +6 more
wiley   +1 more source