Results 21 to 30 of about 11,952,476 (292)

Central Precocious Puberty Following Treatment of Precocious Pseudo-Puberty Caused by Leydig Cell Tumor: A Pediatric Case and Literature Review

open access: yesClinical Pediatric Hematology-Oncology, 2022
Leydig cell tumors can cause precocious puberty in prepubertal males. Radical orchiectomy is the standard therapy for Leydig cell tumors, with a good overall prognosis.
Jeong Ho Ahn   +3 more
doaj   +1 more source

Leydig cells express neural cell adhesion molecules in vivo and in vitro [PDF]

open access: yes, 1992
The neural cell adhesion molecule (NCAM) polypeptides are expressed by numerous tissues during embryonic development, where they are involved in cell-cell interactions.
Barthels, D.   +7 more
core   +1 more source

Parathyroid Hormone-Related Protein Promotes Rat Stem Leydig Cell Differentiation

open access: yesFrontiers in Physiology, 2017
The regulatory factors for stem Leydig cell development are largely unknown. Herein, we reported that parathyroid hormone-related protein (PTHrP) may be a factor to regulate this process.
Tiantian Song   +11 more
doaj   +1 more source

Silencing of MEG3 attenuated the role of lipopolysaccharides by modulating the miR-93-5p/PTEN pathway in Leydig cells

open access: yesReproductive Biology and Endocrinology, 2021
Background Leydig cells reflect the activation of inflammation, decrease of androgen production, inhibition of cell growth and promotion of cell apoptosis under orchitis. Maternally expressed gene 3 (MEG3) exerts a crucial role in various human diseases,
Xu Zhou   +6 more
doaj   +1 more source

Novas perspectivas no diagnóstico do hipogonadismo pediátrico masculino: a importância do AMH como marcador de células de Sertoli [PDF]

open access: yes, 2011
Sertoli cells are the most active cell population in the testis during infancy and childhood. In these periods of life, hypogonadism can only be evidenced without stimulation tests, if Sertoli cell function is assessed.
Grinspon, Romina, Rey, Rodolfo Alberto
core   +2 more sources

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

Insights into GABA receptor signalling in TM3 Leydig cells [PDF]

open access: yes, 2005
gamma-Aminobutyric acid (GABA) is an emerging signalling molecule in endocrine organs, since it is produced by endocrine cells and acts via GABA(A) receptors in a paracrine/autocrine fashion.
Artur Mayerhofer   +28 more
core   +2 more sources

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

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

Long-term suppression of Leydig cell steroidogenesis prevents Leydig cell aging [PDF]

open access: yesProceedings of the National Academy of Sciences, 1999
Male aging is accompanied by reduced testosterone production by the Leydig cells, the testosterone-producing cells of the testis. The mechanism by which this occurs is unknown. Based on the observations that reactive oxygen is capable of damaging components of the steroidogenic pathway and that reactive oxygen is produced during steroidogenesis itself,
H, Chen, B R, Zirkin
openaire   +2 more sources

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