Flagellar hyperactivation of bull and boar spermatozoa.

ABSTRACT:

Background

In mammals, flagellar hyperactivation is indispensable to sperm fertilization with oocytes in vivo, although there are species differences in regulatory mechanisms for this event. In this study, I reviewed researches regarding hyperactivation of bull and boar spermatozoa, in comparison with those of spermatozoa from other species.

Methods

Recent publications regarding sperm hyperactivation were collected and summarized.

Results main findings

In bull and boar spermatozoa, there are two types of hyperactivation "full-type hyperactivation and nonfull-type hyperactivation" which are equivalent to anti-hock hyperactivation and pro-hock hyperactivation of mouse spermatozoa, respectively, on the basis of the flagellar parts exhibiting asymmetrical beating. Full-ty

SUBMITTER: Harayama H 

PROVIDER: S-EPMC6194283 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature