Essential role of the Cdk2 activator RingoA in meiotic telomere tethering to the nuclear envelope [PDF]
, 2017 Cyclin-dependent kinases (CDKs) play key roles in cell cycle regulation. Genetic analysis in mice has revealed an essential role for Cdk2 in meiosis, which renders Cdk2 knockout (KO) mice sterile.
Barco Barrantes, Ivan del +8 more
core +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 +2 more
wiley +1 more source
Silver-negative NORs in Pamphagus ortolaniae (Orthoptera: Pamphagidae)
European Journal of Entomology, 2008 The present paper reports some cytogenetic peculiarities observed in the Ag-NORs of Pamphagus ortolaniae chromosomes, the unusual behaviour of ribosomal sites after silver staining and the intense Ag-positive reaction of centromeric regions at ...
Roberto VITTURI +4 more
doaj +1 more source
Avaliação da função testicular utilizando a citologia aspirativa e testosterona sérica em cães [PDF]
, 2004 In order to verify alternative clinical approach in the reproductive evaluation of 4 adult dogs, the fine needle aspiration cytology (FNAC) and serum testosterone levels were used together with testicular volume measurement and semen analysis.
Leme, Denise Pereira +4 more
core +6 more sources
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 +8 more
wiley +1 more source
Revue des connaissances actuelles sur la cytogénétique des glossines (Diptera) [PDF]
, 1973 Les caryotypes de douze espèces de Glossines ont été décrits par différents auteurs, au cours des six dernières années. Toutefois, parmi celles-ci, sept espèces seulement ont été relativement bien étudiées: deux espèces du groupe palpalis (G.
Itard, Jacques
core
Andrology, EarlyView.Abstract Background Long‐acting gonadotropin‐releasing hormone (GnRH) agonists are commonly used for fertility control in male dogs. Their effect on testicular histomorphology has not been clarified. Objectives To elucidate the mechanisms underlying androgen withdrawal in response to long‐acting GnRH agonist deslorelin 4.7 mg treatment on testicular ...
Aykut Gram +5 more
wiley +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 +3 more
doaj +1 more source
Evidence for intraflagellar transport in butterfly spermatocyte cilia [PDF]
, 2022 Marco Gottardo +3 more
openalex +1 more source
Regulation of Centromere Localization of the Drosophila Shugoshin MEI-S332 and Sister-Chromatid Cohesion in Meiosis [PDF]
, 2014 The Shugoshin (Sgo) protein family helps to ensure proper chromosome segregation by protecting cohesion at the centromere by preventing cleavage of the cohesin complex. Some Sgo proteins also influence other aspects of kinetochore-microtubule attachments.
Clarke, A. +4 more
core +1 more source