Results 11 to 20 of about 83,183 (339)

Structural specializations of the sperm tail [PDF]

Cell, 2023
Sperm motility is crucial to reproductive success in sexually reproducing organisms. Impaired sperm movement causes male infertility, which is increasing globally. Sperm are powered by a microtubule-based molecular machine-the axoneme-but it is unclear how axonemal microtubules are ornamented to support motility in diverse fertilization environments ...
Xiangli Wang, Tzviya Zeev-Ben-Mordehai
exaly   +9 more sources

Sperm tail beating

, 2022
The project aims to measure and analyze the change of angle between cell and sperm cell during their interaction. The program allows interactively selecting the cell of interest to measure using napari Viewer. Requirements are specified in requirements.txt. Developed in IMCF in Biocev, Czech Republic.
Vondráková Jana Komrsková Kateřina
  +7 more sources

RAB-like 2 has an essential role in male fertility, sperm intra-flagellar transport, and tail assembly. [PDF]

PLoS Genetics, 2012
A significant percentage of young men are infertile and, for the majority, the underlying cause remains unknown. Male infertility is, however, frequently associated with defective sperm motility, wherein the sperm tail is a modified flagella/cilia ...
Jennifer C Y Lo, Duangporn Jamsai, Anne E O'Connor, Claire Borg, Brett J Clark, James C Whisstock, Mark C Field, Vicki Adams, Tomomoto Ishikawa, R John Aitken, Belinda Whittle, Christopher C Goodnow, Christopher J Ormandy, Moira K O'Bryan   +13 more
doaj   +2 more sources

#35 : Tail-First Sperm Injection Significantly Improved the Fertilization Rates More Than the Head-First Sperm Injection Regardless of the Elasticity of the Oocyte Membrane Following Piezo-ICSI

Fertility & Reproduction, 2023
Background and Aims: Little information is available for investigating the effect of the direction of sperm injected into the cytoplasm on clinical results for human oocytes following intracytoplasmic sperm injection (ICSI).
Kenichiro Hiraoka, Nozomi Uchida, Hayata Nakajo, Moe Sato, Saki Ishikawa, Toshio Sujino, Akira Komiya, Yuko Takayanagi, Yurie Nako, Makiko Tajima, Kiyotaka Kawai   +10 more
doaj   +2 more sources

Irradiation of Sperm Tails by Laser Microbeam [PDF]

Journal of Experimental Biology, 1969
1. Sea-urchin and starfish sperm tails were irradiated at pre-selected points along the flagellum and at pre-selected phases of the beat cycle by means of a pulsed ruby laser microbeam. Multiple-exposure dark-field photomicrographs were taken immediately
Goldstein, Stuart F.
core   +4 more sources

Identification of CFAP52 as a novel diagnostic target of male infertility with defects of sperm head-tail connection and flagella development [PDF]

eLife, 2023
Male infertility is a worldwide population health concern. Asthenoteratozoospermia is a common cause of male infertility, but its etiology remains incompletely understood. No evidence indicates the relevance of CFAP52 mutations to human male infertility.
Hui-Juan Jin, Tiechao Ruan, Siyu Dai, Xin-Yan Geng, Yihong Yang, Ying Shen, Su-Ren Chen   +6 more
doaj   +2 more sources

Gene trap mutation of murine Outer dense fiber protein-2 gene can result in sperm tail abnormalities in mice with high percentage chimaerism [PDF]

, 2010
Background Outer dense fiber protein 2, Odf2, is a major component of the outer dense fibers, ODF, in the flagellum of spermatozoa. ODF are associated with microtubule doublets that form the axoneme.
Heide Tarnasky, Min Cheng, Young Ou, Jacob C Thundathil, Richard Oko, Frans A van der Hoorn   +5 more
core   +3 more sources

Sperm tail agenesis in a case of consanguinity [PDF]

Fertility and Sterility, 2004
To report a case of 100% teratozoospermia in a patient whose family history presented a high degree of consanguinity.Case report.University-based andrology clinic.A 27-year-old man undergoing infertility evaluation.None.Serum hormone analysis, standard (World Health Organization) semen quality evaluation, sperm ultrastructure, lymphocytic karyotype ...
Maurizio Latini, L. Gandini, Andrea Lenzi, Francesco Romanelli   +3 more
openalex   +4 more sources

CCDC113 stabilizes sperm axoneme and head-tail coupling apparatus to ensure male fertility [PDF]

eLife
The structural integrity of the sperm is crucial for male fertility, defects in sperm head-tail linkage and flagellar axoneme are associated with acephalic spermatozoa syndrome (ASS) and the multiple morphological abnormalities of the sperm flagella ...
Bingbing Wu, Chenghong Long, Yuzhuo Yang, Zhe Zhang, Shuang Ma, Yanjie Ma, Huafang Wei, Jinghe Li, Hui Jiang, Wei Li, Chao Liu   +10 more
doaj   +2 more sources

Di (2-ethylhexyl) phthalate reduces sperm motility by decreasing sperm tail energy supply

Ecotoxicology and Environmental Safety
Di (2-ethylhexyl) phthalate (DEHP) is widespread in the environment. It can impair sperm function through damaging the sperm development process. However, few studies have focused on the sperm tail that is directly related to sperm motility.
Xiao-lu Li, Qi-meng Li, Yuan-zhuo Zheng, Die Hu, Xiao-yue Cai, Ke Yin, Yin-yin Qi, Zi yu Cheng, Xia Ning, Yang Cai, Wei Wu, Ting-yuan Lin, Tao Xu, Ling-li Zhao   +13 more
exaly   +3 more sources