搜索结果: 1-8 共查到“性医学 zona-free”相关记录8条 . 查询时间(0.052 秒)
Comparison of the penetration ability of human spermatozoa into bovine cervical mucus and zona-free hamster eggs
penetration ability human spermatozoa bovine cervical mucus zona-free hamster eggs
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2009/2/20
In vitro bovine cervical mucus (BCM) penetration tests, sperm penetration assays (SPA) using zona-free hamster eggs, and routine semen analyses were performed on a total of 136 freshly collected sem...
Effects of white blood cells on the in vitro penetration of zona-free hamster eggs by human spermatozoa
white blood cells zona-free hamster eggs human spermatozoa
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2009/2/20
The presence of white blood cells in semen has been associated with male infertility. Previous studies indicate that pyospermia occurs in conjunction with decreases in sperm motility, number of no...
Comparison of glycerol and a zwitter ion buffer system as cryoprotective media for human spermatozoa. Effect on motility, penetration of zona-free hamster oocytes, and acrosin/proacrosin
spermatozoa human cryopreservation
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2009/2/20
This study compared the cryoprotective effect of glycerol with that of a zwitter ion buffer system (TESTCY). Spermatozoa that are cryopreserved in the presence of glycerol possess a somewhat highe...
Evaluation of human sperm hyperactivated motility and its relationship with the zona-free hamster oocyte sperm penetration assay
Motility capacitation fertilizing capacity
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2009/2/7
The authors studied hyperactivated motility of human spermatozoa as a method of evaluating capacitation by examining its relationship to results of zona-free hamster oocyte sperm penetration assays ...
Non-poisson distribution of sperm from grandfathers in zona-free hamster ova
Penetrating sperm age Poisson distribution human
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2009/2/7
Earlier reports indicated that sperm from 25% of patients from infertile couples, but not from normal or fertile donors, show deviations from the theoretical Poisson distribution of the number of sp...
Teratospermia in domestic cats compromises penetration of zona-free hamster ova and cat zonae pellucidae
Teratospermia domestic cats compromises penetration zona-free hamster ova
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2009/2/7
The ability of spermatozoa to bind and penetrate zona-free hamster ova and the zonae pellucidae of domestic cat oocytes in vitro was compared between normospermic (greater than 60% structurally norm...
Relationship Between the Characteristics of Epididymal Red Deer Spermatozoa and Penetrability Into Zona-Free Hamster Ova
Cervus elaphus hispanicus heterologous IVF postmortem sperm function
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2008/12/19
A heterologous (zona-free hamster oocytes) in vitro fertilization (IVF) system was used to evaluate the relationship between sperm factors and penetration capacity of epididymal red deer spermatozoa...
Induction of the acrosome reaction and zona-free hamster oocyte penetration by a bull with complete teratospermia versus a half brother with normal sperm
zona-free hamster oocyte penetration bull complete teratospermia
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2008/12/1
A fertile bull producing normal sperm and a sterile half brother exhibiting 100% teratospermia were available to study an induced sperm acrosome reaction and oocyte penetration. Pedigree analysis in...