The Kinetic of Acrosome Reaction - an Additional Sperm Parameter?

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Abstract
Spermatozoa of six men with normozoospermia, oligozoospermia and teratozoospermia were capacitated in vitro in modified Tyrode's medium und evaluated for acrosome reaction using the recently described triple-stain technique. The resulting kinetics illustrate the different capacitation behaviour and ability of spermatozoa to undergo acrosome reaction. The data were completed by the movement characteristics of spermatozoa during the incubation period. The kinetic of acrosome reaction seems to be an important functional sperm parameter that may be useful to discriminate between fertile and infertile spermatozoa.