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العنوان
Human Sperm-Egg Interaction Cytochemical characterization of a sperm receptor for zona binding using porcine zp3 /
المؤلف
Abd El-Latif, Hamed M. Youssef.
هيئة الاعداد
باحث / Hamed Mohamed Youssef Abd El-Latif
مشرف / Bassiouny Ahmed Bassiouny
مشرف / Anibal A. Acosta
مشرف / Mostafa Mostafa El-Zayat
الموضوع
Sperm-Egg Interaction.
تاريخ النشر
1995.
عدد الصفحات
144 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الطب
تاريخ الإجازة
1/1/1995
مكان الإجازة
جامعة المنصورة - كلية الطب - Obstetrics Gynecology
الفهرس
Only 14 pages are availabe for public view

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Abstract

Ideally the infertile couple should be diagnosed and treated as a unit. It has been timated that male infertility represents approximately 40~50% of the cases presenting to rtility clinics (Class, 1991; lrianni and Coddington, 1992). Evaluation of the male infertility ,i currently limited to assessment of a few aspects of sperm function and largely depends on escriptive criteria as the classical parameters of semen analysis: sperm concentration, motility, d morphology (Aitken, 1990; Tesarik and Testart, 1989). However, inter-laboratory, inter-hnician, inter-patient and intra-patient variabilities have questioned the usefulness of this ’.agnostic screen (Kruger et al., 1988; Freund, 1966; Fredricsson, 1979; Overstreet, 1984; ’orking, 1988). Investigators have also attempted to measure movement characteristics via mputerized system for sperm track reconstruction (Aitken, 1990) and to apply hyperactivated rm motility as an end-point of capacitation correlated with fertilizing capacity in animal odel (Yanagimachi, 1994) as an additional correlate. Unfortunately, <24% of all human rmatozoa incubated 3 to 24 h conform to this model (Robertson et al., 1988).Simple and rapid assessment of male fertility is an objective which has eluded ;vestigators since male infertility was first recognized. In truth, there may never be a single