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A positive role for the superoxide anion in triggering hyperactivation and capacitation of human spermatozoa

Lamirande, E. De, Gagnon, C.·1993·International Journal of Andrology

Abstract

Summary: Capacitation of human spermatozoa is essential for fertilization, and is characterized visually by hyperactivated motility. We have investigated whether reactive oxygen species could induce these two events in human spermatozoa. The addition of xanthine + xanthine oxidase + catalase (X+XO+CAT: generation of superoxide anion and removal of hydrogen peroxide) and foetal cord serum (FCS), a known biological inducer of capacitation and hyperactivation, to spermatozoa, induced levels of hyperactivation (15.4 ± 1.6% and 8.0 ± 1.0%, respectively) which were significantly higher than that of controls (5.4 ± 0.6%). The hyperactivation measured was part of the capacitation process. Furthermore, the addition of superoxide dismutase prevented the capacitation and hyperactivation induced by X+XO+CAT or by FCS. These results suggest that the superoxide anion may be involved in capacitation and hyperactivation of human spermatozoa.

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Metadata

Authors
Lamirande, E. D., & Gagnon, C.
Venue
International Journal of Andrology
Publisher
Wiley
Published
1993-02
Volume
16
Issue
1
Pages
21-25
ISSN
  • 0105-6263 (ISSN-L)
  • 1365-2605
OpenAlex
W1975010325
Cited by
305
References
0
FWCI
9.44
Type
journal article
Language
en
Open access
closed

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Lamirande, E. D., & Gagnon, C. (1993). A positive role for the superoxide anion in triggering hyperactivation and capacitation of human spermatozoa. International Journal of Andrology. https://doi.org/10.1111/j.1365-2605.1993.tb01148.x

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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