Results 21 to 30 of about 26,767 (249)
Spermatocytic Seminoma in the Rat [PDF]
Toxicologic Pathology, 1985 During the necropsy of a 2-yr-old untreated control rat from a carcinogenicity study, a tan brown nodular mass was observed within the tunica albuginea of one testis. Both testes were processed for light and transmission electron microscopy. Histologically, the testicular mass was composed of round to polyhedral cells with distinct cell boundaries ...
S N, Kim +2 more
openaire +2 more sources
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 +4 more
doaj +1 more source
Isolation and characterization of human spermatogonial stem cells
Reproductive Biology and Endocrinology, 2011 Background To isolate and characterization of human spermatogonial stem cells from stem spermatogonium. Methods The disassociation of spermatogonial stem cells (SSCs) were performed using enzymatic digestion of type I collagenase and trypsin.
Liu Shixue +3 more
doaj +1 more source
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 +3 more
doaj +1 more source
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 +8 more
doaj +1 more source
Isolation and identification of spermatogonia and spermatocytes.
, 2020 The images of spermatogonia (A, C) and spermatocytes (B, D) from yaks and cattleyaks under the inverted microscope with scale bars = 20 μm. The expression of marker genes for the spermatogonia and spermatocytes isolated from yaks (E) and cattleyaks (F).
Shixin Wu (2090413) +8 more
core +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 +6 more
doaj +1 more source
A potential role for the clathrin adaptor GGA in
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 +2 more
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Cytological analysis of Trim41 KO spermatocytes.
, 2022 (A and B) The spread nuclei of prophase spermatocytes collected from adult Het (A) and KO (B) male mice were immunostained with anti-SYCP3 and -γH2AX antibodies. XYs in (A) indicate the sex chromosomes encircled by γH2AX signals (i.e. XY body).
Seiya Oura (9234312) +9 more
core +1 more source