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Untersuchungen zur Spermienresistenz gegenüber isotonischer Verdünnung des Spermaliquors

Investigations on sperm-resistance to isotonic dilution of seminal plasma

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Summary

Milovanov's resistance test was performed with semen samples from sub- or infertile men and compared with a fertile group. Increasing dilution of semen with 1% NaCl induced immobilisation of the progressive motility of all spermatozoa, which was followed by complete immobility of the spermatozoa. The rate of resistance was calculated by Milovanov's formula R = V:v, R I from the volume of diluent (V I) required to arrest all progressive movements in a given volume of semen (v), R II from the volume of the diluent (V II) required to immobilize the motility of spermatozoa completely.

In the fertile group the rates of R I ranged from 600 to 700, the rates of R II from 1200 to 1400. In the sub- or infertile group rates of R I measured from 100 to 600, rates of R II from 200 to 1100. The relation R I:R II was constant, except the low resistance group, whereas progressive movement was disproportionally arrested at a lower dilution.

In nearly all cases immobilisation of progessive sperm movement was completely abolished by addition of an equal volume of a colloidal medium, which consisted of glucose, citrate, egg-yolk, and a Difco-medium.

In the sub- or infertile group a significant correlation between resistance and sperm motility was found. The rates of resistance were significantly lower in the groups of low sperm counts and of abnormal sperm morphology compared to the groups of normal sperm counts and normal sperm morphology.

Extremely low resistance was found in patients with acute and chronic inflammation of prostate gland, seminal vesicles and epididymis. The presence of a varicocele did not differ from other disturbances affecting the fertility.

Zusammenfassung

Spermien sub- oder infertiler Männer weisen gegenüber einer fertilen Kontrollgruppe bei exzessiver isotonischer Dilution des Spermaliquors mit 1%iger NaCl-Lösung eine verminderte Resistenz sowohl der progressiven (= qualitativen) Spermienbeweglichkeit wie der gesamten (quantitativen) Motilität auf. Auf der Stufe der Progressions-Immobilisierung war der deletäre Effekt durch Zugabe eines kolloidalen Mediums in nahezu allen Fällen vollständig reversibel. Verglichen mit den übrigen spermatologischen Kriterien fand sich eine signifikante Korrelation der Spermienresistenz zur Spermienmotilität. Normo- und Oligozoospermien sowie Normo- und Teratozoospermien wiesen signifikant verschiedene Resistenzwerte auf. Die stärkste Resistenzminderung wurde bei akuten und chronischen Entzündungsprozessen von Prostata, Samenblasen und Nebenhoden ermittelt, während Durchblutungsstörungen auf dem Boden einer Varicocele sich nicht von anderen die Fertilität beeinträchtigenden Prozessen unterschieden.

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Hofmann, N., Weirauch, W. Untersuchungen zur Spermienresistenz gegenüber isotonischer Verdünnung des Spermaliquors. Arch. Derm. Forsch. 243, 232–240 (1972). https://doi.org/10.1007/BF00595500

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  • DOI: https://doi.org/10.1007/BF00595500

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