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  • Title: A simplified approach to sperm-cervical mucus interaction testing using a hyaluronate migration test.
    Author: Mortimer D, Mortimer ST, Shu MA, Swart R.
    Journal: Hum Reprod; 1990 Oct; 5(7):835-41. PubMed ID: 2266158.
    Abstract:
    Fifty-one comparisons were made of human sperm migration into capillary tubes containing either human cervical mucus ('Kremer test') or a synthetic mucus substitute consisting of a 5 mg/ml solution of sodium hyaluronate (average mol. wt 2 x 10(6)) in a phosphate-buffered medium. The results of these two tests were highly significantly correlated and dependent upon the same sperm characteristics reflecting sperm progressive ability (including the specific movement characteristic of lateral head displacement amplitude), morphological normality and cellular vitality as well as the concentration of these more functional cells in the semen. The result of the hyaluronate migration test, in conjunction with the mucus quality measures of Insler score and pH, allowed a 92.2% correct prediction of the Kremer test outcome (90.9% of normal tests and 93.1% of abnormal tests). In this data set, these values also corresponded to the sensitivity and specificity of the analysis, respectively. From these studies, we propose the hyaluronate migration test as a useful adjunct to routine semen analysis, sperm movement analysis and the more traditional in-vitro tests of sperm-cervical mucus interaction in the diagnostic investigation of infertile couples. It effectively assesses the mucus-penetrating potential of a semen sample without the need for relatively large quantities of midcycle cervical mucus; it will therefore augment (as an internal control), although not necessarily replace, the homologous Kremer test and reduce the quantity of both patient and donor mucus needed for comprehensive crossed-hostility format testing of sperm-mucus interaction.
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