Results 31 to 40 of about 38,921 (268)

Cytostatic factor proteins are present in male meiotic cells and beta-nerve growth factor increases mos levels in rat late spermatocytes. [PDF]

PLoS ONE, 2009
BACKGROUND:In co-cultures of pachytene spermatocytes with Sertoli cells, beta-NGF regulates the second meiotic division by blocking secondary spermatocytes in metaphase (metaphase II), and thereby lowers round spermatid formation.
Marie-Hélène Perrard, Emeric Chassaing, Guillaume Montillet, Odile Sabido, Philippe Durand   +4 more
doaj   +1 more source

RNA from a simple-tandem repeat is required for sperm maturation and male fertility in Drosophila melanogaster. [PDF]

, 2019
Tandemly-repeated DNAs, or satellites, are enriched in heterochromatic regions of eukaryotic genomes and contribute to nuclear structure and function. Some satellites are transcribed, but we lack direct evidence that specific satellite RNAs are required ...
Allshire, Brown, Cai, Chen, Demarco, Dernburg, Ding, Eren-Ghiani, Ferree, Herbert, Hoskins, Hoskins, Jagannathan, Jain, Jandura, Jayaramaiah Raja, Johnson, Kaessmann, Kelemen, Kost, Larracuente, Legendre, Lohe, Lohe, McKee, McNulty, Ni, Nicholson, Pathak, Rathke, Rathke, Rinn, Rošić, Shirai, Shpiz, Steinhauer, Strom, Sun, Velazquez Camacho, Wei, White-Cooper, White-Cooper, Yap, Yuan, Zhu   +44 more
core   +2 more sources

Rat testicular germ cells and sertoli cells release different types of bioactive transforming growth factor beta in vitro

Reproductive Biology and Endocrinology, 2003
Several in vivo studies have reported the presence of immunoreactive transforming growth factor-β's (TGF-β's) in testicular cells at defined stages of their differentiation.
Themmen Axel PN, Hoogerbrugge Jos W, Haagmans Bart L, Teerds Katja J   +3 more
doaj   +1 more source

Sycp1 Is Not Required for Subtelomeric DNA Double-Strand Breaks but Is Required for Homologous Alignment in Zebrafish Spermatocytes

Frontiers in Cell and Developmental Biology, 2021
In meiotic prophase I, homologous chromosomes are bound together by the synaptonemal complex, in which two axial elements are connected by transverse filaments and central element proteins.
Yukiko Imai, Kenji Saito, Kazumasa Takemoto, Fabien Velilla, Toshihiro Kawasaki, Toshihiro Kawasaki, Kei-ichiro Ishiguro, Noriyoshi Sakai, Noriyoshi Sakai   +8 more
doaj   +1 more source

Bisphenol A-induced Alterations in Different Stages of Spermatogenesis and Systemic Toxicity in Albino Mice (Mus musculus) [PDF]

Journal of Health and Pollution, 2021
Background. Bisphenol A (BPA) is known to alter sperm morphology, but information is limited on the most susceptible stage(s) of spermatogenesis, especially in mice. Objectives.
Okunola A. Alabi, Kehinde I. Ologbonjaye, Adewale A. Sorungbe, Olutayo S. Shokunbi, Oyinkansola I. Omotunwase, Gbemisola Lawanson, Oluwafemi G. Ayodele   +6 more
doaj   +1 more source

Pushing the (nuclear) envelope into meiosis. [PDF]

, 2013
A recent study shows that a short isoform of a mammalian nuclear lamin is important for homologous chromosome interactions during meiotic prophase in ...
Dernburg, Abby F
core   +1 more source

A potential role for the clathrin adaptor GGA in Drosophila spermatogenesis

BMC Cell Biology, 2011
Background GGAs (Golgi-localised, γ-ear containing, ADP ribosylation factor-binding) are a family of clathrin adaptors that sort a number of biologically important transmembrane proteins into clathrin-coated vesicles.
Carmichael Jenny, Hirst Jennifer
doaj   +1 more source

Microtubule and Actin Cytoskeletal Dynamics in Male Meiotic Cells of Drosophila melanogaster

Cells, 2022
Drosophila dividing spermatocytes offer a highly suitable cell system in which to investigate the coordinated reorganization of microtubule and actin cytoskeleton systems during cell division of animal cells.
Anna Frappaolo, Roberto Piergentili, Maria Grazia Giansanti   +2 more
doaj   +1 more source

Defending the genome from the enemy within:mechanisms of retrotransposon suppression in the mouse germline [PDF]

, 2013
The viability of any species requires that the genome is kept stable as it is transmitted from generation to generation by the germ cells. One of the challenges to transgenerational genome stability is the potential mutagenic activity of transposable ...
A Aravin, A Dupressoir, A Dupressoir, A Dupressoir, A Fadloun, A Inagaki, A Inoue, A Inoue, A Meissner, A Prokhortchouk, A Puech, A Sookdeo, A Tsumura, A Vourekas, AA Aravin, AA Aravin, AA Aravin, AA Zabolotneva, AE Peaston, AR Muotri, AR Muotri, B Hendrich, BH Schrans-Stassen, C Chen, C Lu, C Popp, C-X Song, C-X Song, CE Nestor, CG Lian, CM Davis, CP Walsh, D Bourc’his, D Bourc’his, D Branciforte, D Guallar, D Haig, D Lucifero, D Lucifero, D Reiss, D Ribet, D Ribet, D Ribet, D Sproul, D Wolf, D Wolf, DA Kramerov, DC Hancks, DJ Lees-Murdock, DM Maatouk, Donncha S. Dunican, DS Dunican, DT Ting, E Beyret, E Beyret, E Khazina, E Li, EB Chuong, EL Kuff, ES Lander, F Santos, F Yang, FD Araujo, G Hutvagner, G Velasco, GD Evrony, H Cedar, H Cedar, H Heyn, H Kano, H Khan, H Kobayashi, H Stroud, HJ Cooke, HM Rowe, HM Rowe, HM Rowe, I Cantone, I Martín Caballero, I Suetake, IA Maksakova, Ian R. Adams, J Borgel, J Brennecke, J Chen, J Gimenez, J Lange, J Reichmann, J Reichmann, J Rossant, J Sharif, J Xiol, J-H Ng, JA Hackett, JA Hackett, JA Yoder, James H. Crichton, JD Lewis, JK Baillie, JL Garcia-Perez, JL Goodier, JN Athanikar, JO Kriegs, JP Reddington, JP Reddington, JP Thomson, JP Thomson, JV Moran, K Dennis, K Hata, K Hayashi, K Hisada, K Kurimoto, K Myant, K Zheng, K Zheng, KP Koh, L Jackson-Grusby, L Ma, L Piko, L Shen, L-Q Sun, LK Hutnick, M Abe, M Chotalia, M Denne, M Dewannieux, M Dewannieux, M Dewannieux, M Freitag, M Kaneda, M Kaneda, M Ko, M Ko, M Leeb, M Okano, M Reuter, M Reuter, M Ruggiu, M Saitou, M Shoji, M Tachibana, M Tahiliani, M Weber, M Wiench, M Xu, MA Carmell, Marie MacLennan, MC Ward, MM Dawlaty, MM Dawlaty, MM Karimi, MT Romanish, N Bannert, N Gilbert, N Lane, N Mathioudakis, N Reynolds, N Yang, N Zamudio, OH Tam, P Hajkova, P Hajkova, PJ Skene, Q Feng, Q Yan, R Brunmeir, R Burdick, R Fuente De La, R Illingworth, R Lister, R Rebollo, R Shukla, R Yaman, R Öllinger, RH Waterston, Richard R. Meehan, RJ DeBerardinis, RJA Frost, RR Meehan, S Chuma, S Fazio De, S Guibert, S Ito, S Ito, S Kagiwada, S Kaufmann, S Kuntz, S Kuramochi-Miyagawa, S Kuramochi-Miyagawa, S Kuramochi-Miyagawa, S Kuramochi-Miyagawa, S Mi, S Milutinovic, S Salle La, S Schütt, S Seisenberger, S Solyom, S Takebayashi, S Yamaguchi, S-H Lee, SA Smallwood, SA Trelogan, SB Rothbart, SFC Soper, SK Mahadevaiah, SL Martin, SL Martin, SL Martin, SL Mathias, SP Sripathy, SS Tanaka, ST Grivna, T Matsui, T Singer, T Tanaka, T Watanabe, T Watanabe, T Watanabe, T-P Gu, TS Macfarlan, UM Galli, V Chapman, VV Vagin, W Deng, W Filipowicz, W Seifarth, W Wei, W Yan, WA Pastor, X Cai, X Nan, Y Kato, Y Seki, Y Tao, Y Unhavaithaya, Y Yabuta, Y Yotsuyanagi, Y-Q Su, Z Li, ZD Smith, ZD Smith   +241 more
core   +2 more sources

Developmental changes in the histological structure of the testes, and testosterone profiles in male guinea fowls (Numida meleagris) [PDF]

, 2017
Owing to the paucity of information on the reproductive biology of guinea fowls, a study involving a total of 66 males was conducted, and documented the developmental changes in histological structure of the testes of guinea cocks from hatching until ...
Abdul-Rahman, Iddriss I., Jeffcoate, Ian A., Obese, Frederick Y.   +2 more
core   +1 more source