Affordable Access

Hyperactivation of human spermatozoa: measurement of motility before and after incubation.

Authors
  • Okada, A
  • Kato, M
  • Fujio, K
  • Miura, K
  • Nakayama, K
  • Shirai, M
Type
Published Article
Journal
Andrologia
Publication Date
Jan 01, 1985
Volume
17
Issue
6
Pages
583–586
Identifiers
PMID: 4083546
Source
Medline
License
Unknown

Abstract

The motility rate of sperm during capacitation process was determined by calculating a sperm motile efficiency index (SMEI) using a hemocytometer. The SMEI values for the sperm from 100% of normal fertile men and 64% of infertile patients increased significantly by the fourth hour of incubation, while for 36% of infertile patients there was no increase. A correlation between the increase of SMEI and original motility, original SMEI and original semen amount was not possible. In addition, a decrease of the SMEI value was observed after sperm incubated for 3 hours were added to the seminal plasma of the donor. It is concluded that in human spermatozoa "hyperactivation and dehyperactivation" can be measured by SMEI.

Report this publication

Statistics

Seen <100 times