Results 61 to 70 of about 168,606 (377)
Germinal Epithelium Cytology during Spermatogenesis in the Alligator Snapping Turtle, Macrochelys temminckii (Reptilia: Chelydridae) [PDF]
, 2018 We investigated the cytology of the seminiferous epithelia of the Alligator Snapping Turtle (Macrochelys temminckii). Spermatogenic and regressed testes were assessed from 2 adult individuals collected in Arkansas in May and September of 1993 ...
Gribbins, Kevin M., Trauth, Stanley E.
core +3 more sources
Multiple signaling pathways in Sertoli cells: recent findings in spermatogenesis
Cell Death and Disease, 2019 The functions of Sertoli cells in spermatogenesis have attracted much more attention recently. Normal spermatogenesis depends on Sertoli cells, mainly due to their influence on nutrient supply, maintenance of cell junctions, and support for germ cells ...
Fei-da Ni, Shuang-li Hao, Wan-Xi Yang
semanticscholar +1 more source
Fatherhood and sperm DNA damage in testicular cancer patients [PDF]
, 2018 Testicular cancer (TC) is one of the most treatable of all malignancies and the management of the quality of life of these patients is increasingly important, especially with regard to their sexuality and fertility.
Lenzi, Andrea +3 more
core +1 more source
The Prmt5-Vasa module is essential for spermatogenesis in Bombyx mori.
PLoS Genetics, 2023 In lepidopteran insects, dichotomous spermatogenesis produces eupyrene spermatozoa, which are nucleated, and apyrene spermatozoa, which are anucleated.
Xu Yang +12 more
doaj +1 more source
Dissecting mammalian spermatogenesis using spatial transcriptomics
bioRxiv, 2020 Single-cell RNA sequencing has revealed extensive molecular diversity in gene programs governing mammalian spermatogenesis but fails to delineate their dynamics in the native context of seminiferous tubules — the spatially-confined functional units of ...
Haiqi Chen +12 more
semanticscholar +1 more source
Angewandte Chemie, EarlyView.Utilizing quadrature phase modulation, the phase‐shifted polarization SRS (QP2‐SRS) microscope enables simultaneous measurement of the ρ‐related χ1111(3)$\chi _{1111}^{( 3 )}$ and χ1221(3)$\chi _{1221}^{( 3 )}$ components. In cholesterol molecular measurements, QP2‐SRS leverages the structural differences between cholesterol and other biomolecules to ...
Yongqing Zhang +7 more
wiley +2 more sources
Reproductive Biology and Endocrinology, 2021 Background Infertility is a common complication in obese men. Oxidative stress and testicular apoptosis play critical roles in obesity-induced spermatogenesis dysfunction.
Yang Mu +3 more
doaj +1 more source
Human Spermatogenesis: Insights From the Clinical Care of Men With Infertility
Frontiers in Endocrinology, 2022 Human spermatogenesis is a qualitatively and quantitatively different process than that observed for most other mammals. In contrast with most other mammals, human spermatogenesis is characterized by reduced quantitative production and more abnormal ...
Peter N. Schlegel
doaj +1 more source
Non-random chromosome positioning in mammalian sperm nuclei, with migration of the sex chromosomes during late spermatogenesis [PDF]
, 2005 Chromosomes are highly organized and compartmentalized in cell nuclei. The analysis of their position is a powerful way to monitor genome organization in different cell types and states.
Abeydeera, L +3 more
core +1 more source
Evolution and spermatogenesis [PDF]
Philosophical Transactions of the Royal Society B: Biological Sciences, 2010 Sexual reproduction depends on the production of haploid gametes, and their fusion to form diploid zygotes. Here, we discuss sperm production and function in a molecular and functional evolutionary context, drawing predominantly from studies in model organisms (mice,Drosophila,Caenorhabditis elegans). We consider the mechanisms involved in establishing
Nina Bausek, Helen White-Cooper
openaire +3 more sources