Results 91 to 100 of about 36,690 (245)

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

Mouse tafazzin is required for male germ cell meiosis and spermatogenesis [PDF]

, 2015
Barth syndrome is an X-linked mitochondrial disease, symptoms of which include neutropenia and cardiac myopathy. These symptoms are the most significant clinical consequences of a disease, which is increasingly recognised to have a variable presentation.
Bryson, S., Cadalbert, L.C., Ghaffar, F.N., Gottlieb, E., Stevenson, D., Strathdee, D., Vaz, F.M.   +6 more
core   +3 more sources

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

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

Cryptorchidism: Novel genetic insights into CCDC149 mutations

Andrology, EarlyView.
Abstract Background Cryptorchidism, characterized by the failure of one or both testes to descend into the scrotum, is a common congenital condition that can lead to infertility and increased risk of testicular cancer. CCDC149, a coiled‐coil domain‐containing protein, has been implicated in various developmental processes, but its role in the male ...
Shengrong Du, Shan Xu, Lei Yang, Yan Ye, Yuhan Wu, Ziyun Xiao, Xiuqing Dong, Wenliang Yao, Hua Li   +8 more
wiley   +1 more source

CRISPR/Cas9‐mediated Genome‐editing Reveals 10 Testis‐enriched Genes and One Non‐testis‐enriched Gene are Dispensable for Male Fecundity in Mice

Andrology, EarlyView.
ABSTRACT Background More than 1000 genes have been identified as predominantly expressed in the human testis. Advances in gene editing technologies have enabled the rapid and efficient generation of genetically engineered mice. This approach facilitates the screening of genes essential for spermatogenesis by analyzing knockout mouse models.
Yumiao Qiu, Keisuke Shimada, Masahito Ikawa   +2 more
wiley   +1 more source

Reproductive biology of blue marlin (Makaira nigricans) in the western Pacific Ocean [PDF]

, 2009
The reproductive biology of blue marlin (Makaira nigricans) was assessed from 1001 fish (ranging from 121 to 275 cm in eye-to-fork length; EFL) caught by Taiwanese offshore longliners in the western Pacific Ocean from September 2000 to December ...
Chien-Chung Tszeng, Chien-Chung Tszeng, Su-Zan Yeh, Su-Zan Yeh, Sun, Chi-Lu, Yi-Jay Chang, Yi-Jay Chang   +3 more
core  

Analysis of the transcriptional program governing meiosis and gametogenesis in yeast and mammals [PDF]

, 2006
During meiosis a competent diploid cell replicates its DNA once and then undergoes two consecutive divisions followed by haploid gamete differentiation.
Schlecht, Ulrich
core   +1 more source

tBRD-1 and tBRD-2 regulate expression of genes necessary for spermatid differentiation

Biology Open, 2017
Male germ cell differentiation proceeds to a large extent in the absence of active gene transcription. In Drosophila, hundreds of genes whose proteins are required during post-meiotic spermatid differentiation (spermiogenesis) are transcribed in primary ...
Ina Theofel, Marek Bartkuhn, Thomas Boettger, Stefanie M. K. Gärtner, Judith Kreher, Alexander Brehm, Christina Rathke   +6 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