Zusammenfassung
Der Erfolg einer assistierten Befruchtung hängt von der quantitativen und in hohem Maß auch von der qualitativen Selektion geeigneter Spermien ab. Neben klassischen von der Weltgesundheitsorganisation (WHO) empfohlenen Methoden wie dem einfachen Waschen, dem Swim-up-Verfahren oder der Dichtegradientenzentrifugation gibt es eine Reihe neuer Methoden zur Selektion der „besten“ Spermien. Alle Aufbereitungen haben das Ziel, nicht nur motile und normal geformte, sondern auch reife und physiologisch einwandfreie Spermien mit intakter DNA anzureichern. Viele Methoden können nur Ergebnisse im Sinne diagnostischer Parameter liefern, da sie das Spermium bei der Analyse verbrauchen. Mit anderen Methoden wird versucht, am intakten Spermium eine Analyse oder Anreicherung vorzunehmen, um so eine Population von geeigneten Spermien zu erlangen. Dieser Beitrag gibt einen Überblick über die aktuell anwendbaren Methoden der Spermienanalyse und -selektion sowie einen Ausblick auf zukünftige Methoden.
Abstract
For an optimal outcome in assisted reproductive treatment (ART), the preparation and selection of the appropriate sperm or sperm population is an absolute prerequisite. A wide range of different preparation methods and functional assays are available. In addition to the classical World Health Organization methods like simple washing, the swim-up technique, and density gradient centrifugation, a whole range of new methods are available for the selection of the best sperm. All these approaches have the goal of enriching motile and morphologically normal spermatozoa. However, maturity, DNA integrity, and physiological parameters also play an important role. Still, some of the methods can only be used as a diagnostic tool, since the assay itself devitalizes the sperm so that it cannot be used for ART. Other methods try to select vital sperm according to their physiological functions. This article gives an overview of currently available techniques for sperm analysis and selection, as well as an outlook on future techniques that are under development.
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V. Nordhoff und S. Kliesch geben an, dass kein Interessenkonflikt besteht.
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Nordhoff, V., Kliesch, S. Das eine unter vielen – Spermienqualität und Möglichkeiten der Selektion. Gynäkologische Endokrinologie 17, 250–256 (2019). https://doi.org/10.1007/s10304-019-00274-1
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DOI: https://doi.org/10.1007/s10304-019-00274-1
Schlüsselwörter
- Männliche Infertilität
- Swim-up-Verfahren
- Dichtegradientenzentrifugation
- Spermienmotilität
- Spermienfunktion