Results 91 to 100 of about 33,731 (224)

Cyclic events of spermatogenic cells in the seminiferous tubules of Guinea pigs

Kufa Journal for Veterinary Medical Sciences, 2010
There are  twelve stages were identified in the spermatogenic cycle  in Guinea Pig, each contains one or two generations of spermatids which is connected with one or two generations of Spermatocytes and one or two generations of spermatogonia.
Abdul-Hadi S. Mohammed, Widad A. Jawad
doaj   +1 more source

Analysis of Uncharacterized mKiaa1211 Expression during Mouse Development and Cardiovascular Morphogenesis [PDF]

, 2019
Mammalian Kiaa1211 and Kiaa1211-like are a homologous pair of uncharacterized, highly conserved genes cloned from fetal and adult brain cDNA libraries.
Conway, Simon J., Simmons, Olga, Snider, Elizabeth, Snider, Paige L.   +3 more
core   +1 more source

The Oxytocin Receptor in Spermatozoa May Originate From Both Spermatogenesis and Epididymal Maturation, and Regulates Capacitation

Andrology, EarlyView.
Abstract Background The oxytocin receptor (OR) is a G‐protein‐coupled receptor recently identified in human spermatozoa, whose origin and role in sperm physiology remain unknown. Objectives In this study, using the pig as a model, we examine the presence of the OR in ejaculated spermatozoa through immunofluorescence and immunoblotting, and investigate ...
Jesús Martínez‐Hernández, Ferran Garriga, Adeel Ahmad, Lorena Padilla, Carolina Maside, Sergi Bonet, Isabel Barranco, Jordi Roca, Luis Miguel Pastor, Marc Yeste   +9 more
wiley   +1 more source

Mitochondrial fission regulates germ cell differentiation by suppressing ROS-mediated activation of Epidermal Growth Factor Signaling in the Drosophila larval testis. [PDF]

, 2019
Mitochondria are essential organelles that have recently emerged as hubs for several metabolic and signaling pathways in the cell. Mitochondrial morphology is regulated by constant fusion and fission events to maintain a functional mitochondrial network ...
Jones, D Leanne, Sênos Demarco, Rafael
core   +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  

Seminal Plasma Exosomal miRNA Profiling Reveals hsa‐miR‐7‐5p as a Key Regulator of Sperm Motility in Asthenozoospermia

Andrology, EarlyView.
ABSTRACT Background Asthenozoospermia is a significant contributing factor to male infertility. Accumulating evidence indicates that impaired sperm motility is closely linked to dysregulated microRNA expression during spermatogenesis. Seminal plasma exosomes are enriched with diverse microRNAs, which play pivotal roles in modulating sperm motility, the
Zhi‐Jian Zhu, Meng‐Li Cui, Wen‐Jing Yuan, Jia‐Ning Zhang, Shuo Zhang, Xi‐Qiao Yao, Ruo‐Qing Li, Jin‐Feng Li, En‐Zhong Li   +8 more
wiley   +1 more source

Busulfan Chemotherapy Downregulates TAF7/TNF-α Signaling in Male Germ Cell Dysfunction

Biomedicines
Background: Busulfan is an FDA-approved alkylating drug used in the chemotherapy of advanced acute myeloid leukemia. The precise mechanisms by which Busulfan kills spermatogonia stem cells (SSCs) are not yet completely understood. Methods: Using a murine
Daoyuan Huang, Zhenbo Tu, Antoine E. Karnoub, Wenyi Wei, Abdol-Hossein Rezaeian   +4 more
doaj   +1 more source

Comparison of data on Mutation Frequencies of Mice Caused by Radiation - Low Dose Model -

, 2013
We propose LD(Low Dose) model, the extension of LDM model which was proposed in the previous paper [Y. Manabe et al.: J. Phys. Soc. Jpn. 81 (2012) 104004] to estimate biological damage caused by irradiation. LD model takes account of all the considerable
Davis A. P., Manabe Y., Muller H. J., Russell W. L., Russell W. L., Russell W. L., Russell W. L., Searle A. G., Selby P. B., Tubiana M., Vilenchik M. M.   +10 more
core   +1 more source

SOHLH1 and SOHLH2 control Kit expression during postnatal male germ cell development [PDF]

, 2012
How Kit expression is regulated in the germline remains unknown. SOHLH1 and SOHLH2, two bHLH transcription factors specifically expressed in germ cells, are involved in spermatogonia and oocyte differentiation. In the male, deletion of each factor causes
Barrios, F, Bramucci, F, Campolo, F, Dolci Iannini, S, Filipponi, D, Gori, M, Jannini, E, Ottolenghi, S, Pellegrini, M, Rossi, P   +9 more
core   +2 more sources