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Relationship of human sperm acrosin and proacrosin to semen parameters. II. Correlations
human sperm acrosin semen parameters
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2009/2/23
Previous results, simultaneously confirmed by others, suggest that a relationship exists between sperm acrosin levels and fertility in man. The assessment of sperm acrosin may therefore be a useful ...
Relationship of Human Sperm Acrosin and Proacrosin to Semen Parameters. I. Comparisons Between Symptomatic Men of Infertile Couples and Asymptomatic Men, and Between Different Split Ejaculate Fractions
acrosin proacrosin semen spermatozoa split ejaculate fertility infertility
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2009/2/19
Acrosin is a sperm serine proteinase whose activity appears to be essential for fertilization in mammals, although this has not been shown in man due to experimental limitations. The present stu...
Variation in semen parameters derived from computer-aided semen analysis, within donors and between donors
Concentration longitudinal study motility statistical
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2008/12/29
The development of computer-aided semen analysis (CASA) has made it possible to study sperm motility characteristics objectively and longitudinally. In this 2-year study of 8 sperm donors, we used C...
Development of Normal Reference Values for Seminal Reactive Oxygen Species and Their Correlation With Leukocytes and Semen Parameters in a Fertile Population
Oxidative stress male infertility Endtz test spermatozoa standardization
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2008/12/24
Although reactive oxygen species (ROSs) are clearly implicated in the pathogenesis of male infertility, few studies have attempted to define the basal levels of ROSs in fertile men. Levels of ROS...
Late Hormonal Levels, Semen Parameters, and Presence of Antisperm Antibodies in Patients Treated for Testicular Torsion
Infertility function testis
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2008/12/24
In spite of prompt diagnosis and either orchiectomy or preservation of the affected testis, infertility remains a significant sequel to testicular torsion. The objective of this study was to e...
Trends in Semen Parameters in the Northeast of Scotland
Fertility infertility sperm
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2008/12/24
The data on trends in semen quality are conflicting and sensitive to geographical variations. Although previous British surveys on semen quality indicate a decline, the northeast of Scotland has ...
Correlation Between Semen Parameters and the Hamster Egg Penetration Test（HEPT）Among Fertile and Subfertile Men in Singapore
Semen analysis sperm sperm function assay sperm morphology normal motile count
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2008/12/24
The objective of this retrospective study was to distinguish between fertile and subfertile men based on their semen parameters and hamster egg penetration test (HEPT) outcome. This study involved 1...
Semen Parameters in Norwegian Fertile Men
Semen variables reference range World Health Organization partners to pregnant women
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2008/12/23
The World Health Organization (WHO) provides guidelines for assessing the various semen variables. A set of reference ranges is given in the WHO Laboratory Manual for the Examination of Human Seme...
Response：Seasonal Variation and Age-Related Changes in Human Semen Parameters
Seasonal Variation Age-Related Changes Human Semen Parameters
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2008/12/19
We thank Drs. Mendeluk and Curi for their letter regarding our recently published article, "Seasonal Variation and Age-Related Changes in Human Semen Parameters." It is interesting that they also fo...
Re：Seasonal Variation and Age-Related Changes in Human Semen Parameters
Seasonal Variation Age-Related Changes Human Semen Parameters
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2008/12/19
The study of seasonal variation in human semen parameters has, in our opinion, two different aspects—individual and demographic. The first refers to the consideration of each patient by an evaluatio...
Seasonal Variation and Age-Related Changes in Human Semen Parameters
Epidemiology sperm concentration motility morphology
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2008/12/19
Although semen quality has been discussed extensively with regard to age and season in the andrology literature, the results vary and firm conclusions are still outstanding. To investigate seasona...