Results 121 to 130 of about 61,716 (249)

A microRNA cluster in the Fragile-X region expressed during spermatogenesis targets FMR1. [PDF]

open access: yes, 2019
Testis-expressed X-linked genes typically evolve rapidly. Here, we report on a testis-expressed X-linked microRNA (miRNA) cluster that despite rapid alterations in sequence has retained its position in the Fragile-X region of the X chromosome in ...
Cook-Andersen, Heidi   +12 more
core  

Androgen effects on Sertoli cells [PDF]

open access: yesInternational Journal of Andrology, 1990
SummaryMature male rats, γ‐irradiated in utero, were hypophysectomized. In an effort to maintain the seminiferous epithelium, some animals were treated with exogenous androgen while in other animals the seminiferous epithelium was allowed to regress without hormonal treatment. These Sertoli cell‐enriched (SCE) males were evaluated for 7 weeks following
openaire   +2 more sources

Cyclic Treatment With WIN 18,446, a Potential Male Contraceptive, is as Effective as Continuous Treatment for Suppression of Spermatogenesis in Mice

open access: yesAndrology, EarlyView.
ABSTRACT Background Retinoic acid plays a critical role in spermatogenesis during both spermatogonial differentiation and spermiation. Mice lacking enzymes that synthesize retinoic acid, Aldh1a1/1a2, in the testes are infertile. WIN 18,446 reversibly inhibits spermatogenesis by inhibiting ALDH1A1/1A2 and is a promising approach to male contraception ...
Jisun Paik   +3 more
wiley   +1 more source

Diagnostic performance of the microRNA‐371a assay in small testicular masses: a real‐world cohort study

open access: yesBJU International, EarlyView.
Objectives To evaluate the diagnostic performance of the Conformité Européenne [CE]‐certified microRNA‐371a‐3p (miR371a) assay in patients undergoing inguinal exploration for small testicular masses of unknown histology in a real‐world setting. Patients and Methods Between March 2023 and March 2024, 60 patients underwent inguinal exploration for ...
Felix Seelemeyer   +6 more
wiley   +1 more source

Unveiling the roles of Sertoli cells lineage differentiation in reproductive development and disorders: a review

open access: yesFrontiers in Endocrinology
In mammals, gonadal somatic cell lineage differentiation determines the development of the bipotential gonad into either the ovary or testis. Sertoli cells, the only somatic cells in the spermatogenic tubules, support spermatogenesis during gonadal ...
Yang Gao   +12 more
doaj   +1 more source

Spectrum of Hypogonadism and Its Management in Adolescents With Prader‐Willi Syndrome: A Retrospective Cohort Study Over 35 Years

open access: yesClinical Endocrinology, EarlyView.
ABSTRACT Context Adult data indicate that hypogonadism is underdiagnosed and undertreated in Prader‐Willi Syndrome (PWS). Objectives We aimed to describe the spectrum of pubertal development, and the diagnosis and treatment of hypogonadism in paediatric/adolescent patients with PWS. Design/Patients A retrospective cohort study of patients with PWS aged
Helen Nguyen   +2 more
wiley   +1 more source

Mechanobiology in Stem Cell‐Based Bioprinting

open access: yesCell Proliferation, EarlyView.
Mechanobiology in stem cell‐based bioprinting is an emerging field that bridges the mechanical conditions of the bioprinting process with the regulation of stem cell behaviour for engineering living tissues. Stresses encountered during bioprinting, together with the mechanical properties of bioinks, play a critical role in regulating stem cell ...
Supeng Ding, Tiankun Liu, Rui Yao
wiley   +1 more source

Trophic Effect of Porcine Sertoli Cells on Rat and Human Ventral Mesencephalic Cells and Hnt Neurons in Vitro

open access: yesCell Transplantation, 1998
The poor survival of embryonic dopaminergic (DA) neurons transplanted into patients with Parkinson's disease (PD) has encouraged researchers to search for new methods to affect the short- as well as long-term survival of these neurons after ...
Agneta I. Othberg   +6 more
doaj   +1 more source

Diagnostic yield of OCT3/4 reflex testing in testicular biopsy

open access: yesHistopathology, EarlyView.
GCNIS detection frequency was 48/3353 (1.4%) testicular biopsies from 42/1870 (2.2%) men who underwent testicular biopsy with or without testicular sperm extraction (TESE). OCT3/4 was particularly helpful for detecting interstitial seminoma, GCNIS coexisting with mature spermatogenesis, and focal GCNIS.
Roselyne Choiniere   +2 more
wiley   +1 more source

Proteomic analysis of the zone of degeneration at the mitosis–meiosis transition stage in wild‐caught male catshark (Scyliorhinus canicula), correlated with an unusually high‐water temperature in the English Channel

open access: yesJournal of Fish Biology, EarlyView.
Abstract In the context of current global change, variations in water temperature are one of the environmental conditions with serious consequences for marine life, including reproductive processes. In the small spotted catshark Scyliorhinus canicula, spermatogenesis occurs in spermatocysts composed of synchronously developing germ cells associated ...
Fabian Jeanne   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy