Results 91 to 100 of about 13,462 (242)

The use of deidentified organ donor testes for research

Andrology, EarlyView.
Abstract Our knowledge of testis development and function mainly comes from research using mammalian model organisms, primarily the mouse. However, there are integral differences between men and other mammalian species regarding cellular composition and expression profiles during fetal and post‐natal testis development and in the mature testis ...
Marina V. Pryzhkova, Marnie W. Skinner, Juliana I. Candelaria, Stephen R. Wellard, Philip W. Jordan   +4 more
wiley   +1 more source

The role of iron in normal and impaired testicular function

Andrology, EarlyView.
Abstract Iron plays a critical role in testicular physiology, impacting spermatogenesis, testosterone production, and overall testicular function. Iron homeostasis is maintained through systemic and cellular regulatory mechanisms, including hepcidin‐mediated systemic iron control and the iron‐responsive element/iron regulatory protein (IRE/IRP) system ...
Aileen Harrer, Esther G. Meyron‐Holtz, Andreas Meinhardt   +2 more
wiley   +1 more source

Ultrastructure of the Bovine Testis in Cattle (Bos taurus): New View

Animals
The purpose of this study was to analyze the ultrastructure of the testes of sexually immature calves and reproductive bulls of the Polish Holstein-Friesian Black-and-White breed. Utilizing TEM, this study identified three distinct stages of seminiferous
Katarzyna Michałek, Marta Grabowska, Patrycja Oberska, Dariusz Gączarzewicz, Andrzej Syczewski, Septimiu Cassian Tripon, Lucian Barbu-Tudoran, Maria Suciu   +7 more
doaj   +1 more source

Live-cell Imaging and Quantitative Analysis of Meiotic Divisions in Caenorhabditis elegans Males

Bio-Protocol, 2020
Live-imaging of meiotic cell division has been performed in extracted spermatocytes of a number of species using phase-contrast microscopy. For the nematode Caenorhabditis elegans, removal of spermatocytes from gonads has damaging effects, as most of the
Gunar Fabig, Falko Löffler, Christian Götze, Thomas Müller-Reichert   +3 more
doaj   +1 more source

Sperm Telomere Interactions Are Impaired in Testicular Cancer Before and After Adjuvant Therapy

Andrology, EarlyView.
ABSTRACT Background No study has yet explored telomere length or interaction in sperm nuclei of testicular cancer (TC) patients exposed to chemotherapy or radiotherapy. However, sperm telomere dynamics have emerged as a potential marker in male infertility.
Benoit Berby, Sylvianne Hennebicq, Jacqueline Saias, Florence Brugnon, Isabelle Berthaut, Myriam Daudin, Louis Bujan, Ludovic Dumont, Christine Rondanino, Aurélie Feraille, Nathalie Rives   +10 more
wiley   +1 more source

The orbit gene is required for development of fusomes and ring canals in spermatocyte cysts.

, 2013
(A, B) Immunostaining of early spermatocyte cysts from normal males and from orbit7 mutant males by using anti-α-spectrin antibody for fusome visualization (red) and anti-phospho-tyrosine for ring canal observation (green). DNA staining (blue).
Daisuke Hayashi (387198), Yoshihiro H. Inoue (387199), Itaru Ando (387197), Daishi Kitazawa (387196), Chie Miyauchi (387195)   +4 more
core   +1 more source

Spermatocyte apoptosis, which involves both intrinsic and extrinsic pathways, explains the sterility of Graomys griseoflavus Graomys centralis male hybrids [PDF]

, 2010
Spermatogenic impairment and the apoptotic pathways involved in establishing sterility of male hybrids obtained from crossing Graomys griseoflavus females with Graomys centralis males were studied. Testes from G. centralis, G.
Merico, Valeria, Rodriguez, Valeria, Díaz de Barboza, Gabriela Edith, Garagna, Silvia, Tolosa, Nori Graciela, Ponce, Rubén Hugo   +5 more
core   +1 more source

Micromanipulation of Chromosomes in Insect Spermatocytes

Journal of Visualized Experiments, 2018
The micromanipulation of chromosomes has been an essential method for illuminating the mechanism for chromosome congression, the spindle checkpoint, and anaphase chromosome movements, and has been key to understanding what controls chromosome movements during a cell division. A skilled biologist can use a micromanipulator to detach chromosomes from the
Nicolas K H, Lin, Ryder, Nance, Jane, Szybist, Alan, Cheville, Leocadia V, Paliulis   +4 more
openaire   +3 more sources

T Cell Microenvironmental Impacts and Therapeutic Opportunities: Application to Human Testicular Germ Cell Tumors

Andrology, EarlyView.
ABSTRACT Testicular germ cell tumors (TGCT) are the leading malignancy in adolescent and young adult males, yet the immunological and cellular mechanisms governing their tumor microenvironment (TME) remain poorly understood. Here, we present a comprehensive review of TGCT pathobiology with a focus on the immune landscape, particularly the role of tumor‐
R Islam, M Figura, J Heyer, S Lieber, M Huber, KL Loveland, HC Schuppe, Daniela Fietz   +7 more
wiley   +1 more source

Reproductive cells in the testes of : () spermatogonium; () spermatocyte; () spermatid; () spermatozoon

, 2011
Copyright information:Taken from "Impact of Tributyltin and Triphenyltin on Ivory Shell () Populations"Environmental Health Perspectives 2005;114(S-1):13-19.Published online 21 Oct 2005PMCID:PMC1874183.This is an Open Access article: verbatim copying and
Toshihiro Horiguchi (29530), Akira Kajikawa (29533), Fumihiko Hamada (29532), Masatoshi Morita (29535), Mitsuhiro Kojima (29531), Makoto Shimizu (29536), Hiroaki Shiraishi (29534)   +6 more
core   +1 more source