Articles with "sperm head" as a keyword



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Morphometry of Sperm Head in Rats Treated with an Antifungal Medication

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Published in 2019 at "Bulletin of Experimental Biology and Medicine"

DOI: 10.1007/s10517-019-04565-2

Abstract: The parameters of sperm head in Wistar male rats orally treated with antifungal agent for 48 days during spermatogenesis were studied by the method of image analysis. The degree of roundness (roughness) of sperm head… read more here.

Keywords: head; sperm head; rats treated; morphometry sperm ... See more keywords

138 Associations of sperm head morphometrics with quality parameters of frozen-thawed ram semen

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Published in 2020 at "Reproduction, Fertility and Development"

DOI: 10.1071/rdv32n2ab138

Abstract: Current methods of mammalian semen evaluation focus on determining spermatozoa motility, concentration, mitochondrial status, and nucleus or chromatin structure integrity, quantifying their ability to bind to ova or measuring seminal plasma content of various biochemical… read more here.

Keywords: sperm head; head; frozen thawed; head morphometrics ... See more keywords

TEX38 localizes ZDHHC19 to the plasma membrane and regulates sperm head morphogenesis in mice

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Published in 2025 at "Proceedings of the National Academy of Sciences of the United States of America"

DOI: 10.1073/pnas.2417943122

Abstract: Significance S-palmitoylation is a lipid posttranslational modification process involved in diverse cellular events in a wide range of biological systems. It has remained unclear whether S-palmitoylation has a role in male reproduction. Here, we found… read more here.

Keywords: mice; head morphogenesis; sperm head; palmitoylation ... See more keywords

Predicting the clinical outcome of ICSI by sperm head vacuole examination

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Published in 2017 at "Systems Biology in Reproductive Medicine"

DOI: 10.1080/19396368.2016.1261203

Abstract: ABSTRACT To assess whether high magnification sperm head vacuole examination (SHVE) and/or standard sperm morphology assessment can predict ICSI outcomes in terms of fertilization, embryo quality, and delivery rates, a prospective observational bicentric study was… read more here.

Keywords: sperm head; examination; head vacuole; vacuole examination ... See more keywords

Characterization of different oligomeric forms of CRISP2 in the perinuclear theca versus the fibrous tail structures of boar spermatozoa.

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Published in 2021 at "Biology of reproduction"

DOI: 10.1093/biolre/ioab145

Abstract: Mammalian sperm carry a variety of highly condensed insoluble protein structures such as the perinuclear theca, the fibrous sheath and the outer dense fibers, which are essential to sperm function. We studied the role of… read more here.

Keywords: protein; sperm head; tail; perinuclear theca ... See more keywords

Loss of CCDC188 causes male infertility with defects in the sperm head-neck connection in mice

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Published in 2024 at "Biology of reproduction"

DOI: 10.1093/biolre/ioae137

Abstract: Abstract Acephalic spermatozoa syndrome represents a rare genetic and reproductive disease, which is defined as semen composed of mostly headless spermatozoa. The connecting piece in the neck region, also known as the head-to-tail coupling apparatus,… read more here.

Keywords: head neck; sperm head; ccdc188; head tail ... See more keywords

P-065 Area of double-stranded DNA fragmentation in human sperm showed no correlation with the presence of sperm head vacuoles

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Published in 2025 at "Human Reproduction"

DOI: 10.1093/humrep/deaf097.374

Abstract: Is there a correlation between the area of double-stranded DNA fragmentation, known to decrease embryo competence, and the presence of human sperm head vacuoles? There is no or negligible correlation between the area of double-stranded… read more here.

Keywords: double stranded; correlation; sperm head; area ... See more keywords

The SEPT12 complex is required for the establishment of a functional sperm head-tail junction.

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Published in 2020 at "Molecular human reproduction"

DOI: 10.1093/molehr/gaaa031

Abstract: The connecting pieces of the sperm neck link the flagellum and the sperm head, and they are important for initiating flagellar beating. The connecting pieces are important building blocks for the sperm neck, however the… read more here.

Keywords: sperm head; connecting pieces; sept12; sept12 complex ... See more keywords

Sperm head abnormalities are more frequent in songbirds with more helical sperm: A possible trade‐off in sperm evolution

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Published in 2019 at "Journal of Evolutionary Biology"

DOI: 10.1111/jeb.13446

Abstract: Sperm morphology varies enormously across the animal kingdom. Whilst knowledge of the factors that drive the evolution of interspecific variation in sperm morphology is accumulating, we currently have little understanding of factors that may constrain… read more here.

Keywords: sperm head; head abnormalities; sperm morphology; sperm ... See more keywords

Molecular models of the sperm head–tail coupling apparatus

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Published in 2025 at "Journal of Cell Science"

DOI: 10.1242/jcs.264168

Abstract: ABSTRACT A stable connection between the sperm head (nucleus) and tail (flagellum) is crucial for proper fertility. This linkage is mediated by centrioles, or their remnants, at a structure known as the head–tail coupling apparatus… read more here.

Keywords: sperm head; head tail; coupling apparatus; linkage ... See more keywords

Perinuclear theca protein FNDC8 interacts with CCIN and ACTL7A to ensure proper sperm head shaping during spermiogenesis.

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Published in 2025 at "Zoological research"

DOI: 10.24272/j.issn.2095-8137.2025.060

Abstract: Precise shaping of the sperm head is essential for successful fertilization, and defects in this process are frequently associated with severe forms of male infertility. Sperm head morphology is coordinated by several testis-specific structures, including… read more here.

Keywords: perinuclear theca; spermiogenesis; sperm head; theca protein ... See more keywords