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Is Male Infertility an Early Warning of More Serious Diseases?
EndocrinologyLamb DJ.
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CatSper Calcium Channels: 20 Years On
Physiology, 2023The flagellar-specific Ca2+channel CatSper is the predominant Ca2+entry site in mammalian sperm. CatSper-mediated Ca2+signaling affects nearly every event that regulates sperm to acquire fertilizing capability. In this review, we summarize some of the main findings from 20 years of CatSper research and highlight recent progress and prospects.
Jean-Ju Chung, Jae Yeon Hwang
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Down-regulation of CatSper 1 and CatSper 2 genes by methamphetamine
Toxin Reviews, 2021Methamphetamine (METH) is a strong central nervous system stimulant that has toxic effects on the reproductive system.
Somaieh Mansouri +3 more
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CatSper channels in sea urchin sperm
Cell Calcium, 2021Sea urchin sperm swimming is regulated by speract, a decapeptide released from egg jelly that induces chemotaxis and triggers membrane potential (Em) changes, intracellular increases in cyclic nucleotides (cGMP, cAMP), pH (pHi) and calcium concentration ([Ca2+]i).
Verónica, Loyo-Celis +3 more
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A bioinformatics analysis of the CatSper channel in the class Actinopterygii
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2022The regulation of sperm motility is controlled by several variables, including mainly ion concentrations. In fish, Ca2+ concentrations play an important role in the regulation of sperm motility, and several reports highlight the importance of certain Ca2+ channels in the regulation of this cell function. CatSper is a calcium channel scarcely studied in
Jorge F, Beltrán +7 more
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Science's STKE, 2001
Sperm undergo a process called capacitance, part of which involves increasing their motility in the female reproductive tract. Ren et al. have found and characterized a new Ca 2+ channel expressed in sperm tails, termed CatSper, that is required for sperm motility and male fertility. CatSper
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Sperm undergo a process called capacitance, part of which involves increasing their motility in the female reproductive tract. Ren et al. have found and characterized a new Ca 2+ channel expressed in sperm tails, termed CatSper, that is required for sperm motility and male fertility. CatSper
openaire +2 more sources
2013
In 2001, two groups independently reported different components of a novel Ca2+ channel named CatSper, which is expressed only in the testis and localized in the sperm flagellum. Now, we know that CatSper is a sperm-specific Ca2+ channel composed of four distinct pore-forming subunits accompanied with, at least, three auxiliary subunits. Although there
Takuya Nishigaki +2 more
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In 2001, two groups independently reported different components of a novel Ca2+ channel named CatSper, which is expressed only in the testis and localized in the sperm flagellum. Now, we know that CatSper is a sperm-specific Ca2+ channel composed of four distinct pore-forming subunits accompanied with, at least, three auxiliary subunits. Although there
Takuya Nishigaki +2 more
openaire +1 more source
Science Signaling, 2011
Progesterone stimulates calcium influx in human sperm through the CatSper channel.
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Progesterone stimulates calcium influx in human sperm through the CatSper channel.
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CatSper genes and their role in male infertility: A review
SKUAST Journal of Research, 2022Unexplained infertility is a grave concern in animals as well as humans. In animals, infertility causes huge economic losses. In humans, it accounts for 1020% of cases with overall male infertility accounting for ~30–50% of all infertility cases. Among other factors, genetic defects also cause infertility in a significant proportion of infertile males.
Syed Shanaz +6 more
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2021
Background: CatSper is a multi-subunit sperm-specific calcium channel that mediates the progesterone-induced increase in intracellular calcium. Evidence from CatSper subunit knock-out mouse models implicates it as essential for sperm fertilisation competence.
S. G. Brown +4 more
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Background: CatSper is a multi-subunit sperm-specific calcium channel that mediates the progesterone-induced increase in intracellular calcium. Evidence from CatSper subunit knock-out mouse models implicates it as essential for sperm fertilisation competence.
S. G. Brown +4 more
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