HYPERACTIVATION OF SPERMATOZOA AND ITS ROLE IN THE FERTILIZATION PROCESS

Author:

Belyaeva Lidiya A.1ORCID,Shurygina Oksana V.2ORCID,Zhilkina Maria P.1,Mironov Sergey Yu.1ORCID,Kulakova Olesya V.1ORCID,Bovtunova Svetlana S.1ORCID,Shurygina Alina S.1ORCID

Affiliation:

1. Samara State Medical University

2. Samara State Medical University; Clinical Hospital IDK "Mother and Child"

Abstract

To date, according to the WHO estimates, every sixth person in the world faces the problem of infertility, while the contribution of the male factor is, according to various sources, from 30 to 50%. Understanding the cellular and molecular processes that lead to spermatozoa motility is necessary for accurate diagnosis and finding solutions to this problem. The purpose of the review is to analyze and evaluate current data on the problem of spermatozoa hyperactivation, the causes of its violation, molecular mechanisms and prognostic value. Materials and methods. Domestic and foreign sources of literature dated from 1987 to 2022 were used, they were taken from electronic libraries of scientific publications and medical databases, in particular "CyberLeninka", "Google Academy", "ScienceResearch", Elibrary.ru and PubMed. The review included the sources relevant to the topic of this review, which were searched using keywords such as spermatozoid, hyperactivation, infertility, fertilization. Research results. Hyperactivation of spermatozoa is one of the factors that ensure fertilization. This is a Ca2+ and energy-dependent process due to the normal operation of CatSper and KSper channels, as well as cAMP-, cGMP-dependent, potential-dependent channels. In the absence of the SLC9A10 gene in male mice, spermatozoa mature immobile, despite satisfactory spermatogenesis. The control units in the sperm flagella, consisting of CatSper, SLC9A10 and ABHD2, located on the surface, are necessary to ensure rapid signal transmission and coordinated control of complex cellular movement (hyperactivation and rotation). Conclusions. The motility of spermatozoa acquired during their hyperactivation is a vital functional characteristic that determines the ability of male germ cells to penetrate and migrate both into the cervical mucus and into the oocyte membrane (and ultimately fertilize it). Violation of hyperactivation processes or its absence can result in fertilization failure and, in consequence of, be one of the causes of infertility in a couple.

Publisher

I.N. Ulianov Chuvash State University

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3