Results 91 to 100 of about 1,728 (186)

Physiological role of potassium channels in mammalian germ cell differentiation, maturation, and capacitation

open access: yesAndrology, Volume 13, Issue 2, Page 184-201, February 2025.
Abstract Background Ion channels are essential for differentiation and maturation of germ cells, and even for fertilization in mammals. Different types of potassium channels have been identified, which are grouped into voltage‐gated channels (Kv), ligand‐gated channels (Kligand), inwardly rectifying channels (Kir), and tandem pore domain channels (K2P).
Ariadna Delgado‐Bermúdez   +3 more
wiley   +1 more source

The CatSper channel mediates progesterone-induced Ca2+ influx in human sperm

open access: yes, 2011
In the oviduct, cumulus cells that surround the oocyte release progesterone. In human sperm, progesterone stimulates a Ca(2+) increase by a non-genomic mechanism.
Kaupp, U.B.   +15 more
core   +1 more source

The antidepressant Sertraline inhibits CatSper Ca2+channels in human sperm

open access: yes, 2021
STUDY QUESTION: Do selective serotonin reuptake inhibitor (SSRI) antidepressants affect the function of human sperm? SUMMARY ANSWER: The SSRI antidepressant Sertraline (e.g. Zoloft) inhibits the sperm-specific Ca2+ channel CatSper and affects human sperm
Rehfeld, Anders   +11 more
core   +1 more source

Expressão de protamina 1, 2 e Catsper 1 em espermatozóides de garanhões [PDF]

open access: yes, 2023
A identificação de genes envolvidos na reprodução masculina e a avaliação de suas funções melhoram a compreensão sobre as bases moleculares da espermatogênese, fertilização, qualidade espermática e infertilidade masculina.
Figueiredo, Marília Marcolla de
core  

Investigation In Vitro Expression of CatSper Sub Fragment followed by Production of Polyclonal Antibody: Potential Candidate for The Next Generation of Non Hormonal Contraceptive [PDF]

open access: yesCell Journal, 2012
Objective: CatSper is a voltage-sensitive calcium channel that is specifically expressed in the testis and it has a significant role in sperm performance. CatSper (1-4) ion channel subunit genes, causes sperm cell hyperactivation and male fertility.
Mahboobeh Nazari   +4 more
doaj  

CatSper and Two-Pore channels (version 2019.4) in the IUPHAR/BPS Guide to Pharmacology Database

open access: yes, 2019
CatSper channels (CatSper1-4, nomenclature as agreed by NC-IUPHAR [13]) are putative 6TM, voltage-gated, alkalinization-activated calcium permeant channels that are presumed to assemble as a tetramer of α-like subunits and mediate the current ...
Chung, Jean-Ju   +3 more
core   +1 more source

Revisiting the action of steroids and triterpenoids on the human sperm Ca2+ channel CatSper

open access: yes, 2020
The sperm-specific Ca2+ channel CatSper (cation channel of sperm) is vital for male fertility. Contradictory findings have been published on the regulation of human CatSper by the endogenous steroids estradiol, testosterone and hydrocortisone, as well as
Rehfeld, A
core   +1 more source

Identification of human and mouse CatSper3 and CatSper4 genes: Characterisation of a common interaction domain and evidence for expression in testis

open access: yesReproductive Biology and Endocrinology, 2003
Background CatSper1 and CatSper2 are two recently identified channel-like proteins, which show sperm specific expression patterns. Through targeted mutagenesis in the mouse, CatSper1 has been shown to be required for fertility, sperm motility and for ...
Reynolds Lindsey   +4 more
doaj  

(The) expression of sperm-specific cation channel, CatSper in human spermatozoa

open access: yes, 2004
의학과/박사[한글] 남성의 생식세포인 정자는 고환에서 정자형성과정을 통하여 생성된다. 그러나 고환에 존재하는 정자는 운동성을 갖지 못하며, 정상적으로 난자를 수정시킬 수 있는 능력, 즉 수정능획득 과정 또한 이루어지지 않은 상태이다. 그 후, 정자는 부고환으로 이동되면서 운동성과 수정능획득 과정을 거치게 된다.
최영진
core  

The Impact of Cryopreservation on CatSper 2 and Tektin 2 in Human Spermatozoa [PDF]

open access: yes, 2017
Due to deteriorating quality of spermatozoa after cryopreservation, it became so inevitable to find solutions to maintain its quality so it can fertilize the oocyte.
Alshawa, Eiman Mohammed Saeed
core   +1 more source

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