Results 21 to 30 of about 16,604,758 (298)

Mitochondrial ROS-mediated ribosome stalling and GCN2 activation are partially involved in 1-nitropyrene-induced steroidogenic inhibition in testes

open access: yesEnvironment International, 2022
In the past 50 years, testosterone (T) level in men has declined gradually. In this research, we discovered that acute exposure to 1-nitropyrene (1-NP), an environmental stressor from polluted atmosphere, reduced T contents by downregulating ...
Jian Li   +11 more
doaj   +1 more source

FOXO4-DRI alleviates age-related testosterone secretion insufficiency by targeting senescent Leydig cells in aged mice

open access: yesAging, 2020
Male late-onset hypogonadism is an age-related disease, the core mechanism of which is dysfunction of senescent Leydig cells. Recent studies have shown that elimination of senescent cells can restore proper homeostasis to aging tissue.
Chi Zhang   +12 more
semanticscholar   +1 more source

Short-term perfluorooctane sulfonate exposure impairs Leydig cell regeneration in the adult rat testis via targeting hedgehog signaling

open access: yesEcotoxicology and Environmental Safety, 2021
Perfluorooctane sulfonate is related to male reproductive dysfunction in rats and humans. However, the underlying mechanism remains unknown. Here, we reported the effects of short-term exposure to perfluorooctane sulfonate on the regeneration of Leydig ...
Baiping Mao   +7 more
doaj   +1 more source

Regulation of seminiferous tubule-associated stem Leydig cells in adult rat testes

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2016
Haolin Chen, June Liu, Xiaoheng Li
exaly   +2 more sources

Leydig Cells in the Adult Testis: Characterization, Regulation and Potential Applications.

open access: yesEndocrine reviews, 2020
Androgen deficiency (hypogonadism) affects males of all ages. Testosterone replacement therapy (TRT) is effective in restoring serum testosterone and relieving symptoms.
Pan-Pan Chen, B. Zirkin, Haolin Chen
semanticscholar   +1 more source

Bone morphogenetic protein 4 inhibits rat stem/progenitor Leydig cell development and regeneration via SMAD-dependent and SMAD-independent signaling

open access: yesCell Death and Disease, 2022
Bone morphogenetic protein 4 (BMP4) is an important member of the transforming growth factor-β superfamily. BMP4 is expressed in the Leydig cell lineage. We hypothesized that BMP4 might regulate the development of stem/progenitor Leydig cells.
Xiaoheng Li   +5 more
doaj   +1 more source

Oxidized-LDL inhibits testosterone biosynthesis by affecting mitochondrial function and the p38 MAPK/COX-2 signaling pathway in Leydig cells

open access: yesCell Death and Disease, 2020
Abnormal lipid/lipoprotein metabolism induced by obesity may affect spermatogenesis by inhibiting testosterone synthesis in Leydig cells. It is crucial to determine which components of lipoproteins inhibit testosterone synthesis. Circulating oxidized low-
Jun Jing   +12 more
semanticscholar   +1 more source

Dexamethasone suppresses the differentiation of stem Leydig cells in rats in vitro

open access: yesBMC Pharmacology and Toxicology, 2019
Background It is an established fact that excess of glucocorticoids could cause the harmful effects, such as suppression on the male reproduction. Although glucocorticoids pharmacologically inhibit the Leydig cell function, their roles in Leydig cell ...
Jingwei Zhang   +8 more
doaj   +1 more source

Testosterone secretion is affected by receptor tyrosine kinase c-Kit and anoctamin 1 activation in mouse Leydig cells

open access: yesJournal of Animal Reproduction and Biotechnology, 2022
Receptor tyrosine kinase c-Kit, a marker found on interstitial cells of Cajal (ICCs), is expressed in Leydig cells, which are testicular interstitial cells. The expression of other ICC markers has not yet been reported. In this study, we investigated the
Eun-A Ko, Min Seok Woo, Dawon Kang
doaj   +1 more source

Vitamin A Promotes Leydig Cell Differentiation via Alcohol Dehydrogenase 1

open access: yesFrontiers in Endocrinology, 2018
Vitamin A (retinol) is important for multiple functions in mammals. In testis, the role of vitamin A in the regulation of testicular functions is clearly involved in rodents. It is essential for sperm production.
Yan Yang   +13 more
doaj   +1 more source

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