Results 11 to 20 of about 13,306 (243)
Middle East Fertility Society Journal, 2013 Objective: To correlate late spermatid score and sperm count in men with normal semen analysis and oligozoospermia undergoing intracytoplasmic sperm injection (ICSI) to set the average threshold of spermatids/tubule of testicular tissue needed for normal
Ibrahim Fahmy +3 more
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Spermatid cyst polarization in Drosophila depends upon apkc and the CPEB family translational regulator orb2. [PDF]
PLoS Genetics, 2014 Mature Drosophila sperm are highly polarized cells--on one side is a nearly 2 mm long flagellar tail that comprises most of the cell, while on the other is the sperm head, which carries the gamete's genetic information.
Shuwa Xu, Sanjay Tyagi, Paul Schedl
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Distinct roles of two myosins in C. elegans spermatid differentiation.
PLoS Biology, 2019 During spermatogenesis, interconnected haploid spermatids segregate undesired cellular contents into residual bodies (RBs) before detaching from RBs. It is unclear how this differentiation process is controlled to produce individual spermatids or motile ...
Junyan Hu +7 more
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Journal of Human Reproductive Sciences, 2015 Spermatids are the earliest male germ cells with haploid set of chromosomes. Spermatid injection was introduced in human assisted reproduction for the treatment of men with non-obstructive azoospermia.
Geeta Goswami +2 more
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Recent Advances in Elongated and Round Spermatid Injection
, 2021 Azoospermia is commonly identified in patients with infertility. Non-obstructive azoospermia (NOA) includes primary or secondary and incomplete testicular failure. Before testicular sperm extraction (TESE), donor insemination is the only option available
Sadık Görür +3 more
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Loss of TSLC1 causes male infertility due to a defect at the spermatid stage of spermatogenesis. [PDF]
, 2006 Tumor suppressor of lung cancer 1 (TSLC1), also known as SgIGSF, IGSF4, and SynCAM, is strongly expressed in spermatogenic cells undergoing the early and late phases of spermatogenesis (spermatogonia to zygotene spermatocytes and elongating spermatids to
Arends, Mark J. +9 more
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Melav2, an elav-like gene, is essential for spermatid differentiation in the flatworm Macrostomum lignano [PDF]
, 2009 Background Failure of sperm differentiation is one of the major causes of male sterility. During spermiogenesis, spermatids undergo a complex metamorphosis, including chromatin condensation and cell elongation. Although the resulting sperm morphology and
Ladurner, P. +9 more
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, 2023 Spermatid tail bundles were cut and visualized in FIJI. Manual counting across a number of samples (n = 61) yielded an average number of spermatids per bundle of 63.1 ± 1.3, suggesting that developing pre-meiotic male germline cysts do in fact contain ...
Rocky Diegmiller (10113838) +4 more
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Deficiency in the multicopy Sycp3-like X-linked genes Slx and Slxl1 causes major defects in spermatid differentiation. [PDF]
, 2010 The human and mouse sex chromosomes are enriched in multicopy genes required for postmeiotic differentiation of round spermatids into sperm. The gene Sly is present in multiple copies on the mouse Y chromosome and encodes a protein that is required for ...
Ojarikre, Obah A. +19 more
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The multicopy gene Sly represses the sex chromosomes in the male mouse germline after meiosis. [PDF]
, 2009 Studies of mice with Y chromosome long arm deficiencies suggest that the male-specific region (MSYq) encodes information required for sperm differentiation and postmeiotic sex chromatin repression (PSCR).
Yamauchi, Yasuhiro +13 more
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