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Stability of basic semen measures and abnormal morphology within individuals
semen morphology human variation
2009/2/23
Semen from 15 healthy volunteers was assessed for basic semen measures every 2 weeks over a 6-month period to determine the relative stability of these factors. The parameters were: sperm count, sem...
Release, extraction, and stability of hyaluronidase associated with human spermatozoa
spermatozoa hyaluronidase human cryopreservation
2009/2/20
In contrast to the rabbit: 1) no hyaluronidase could be detected in fresh or frozen human seminal plasma, all color formation on assay being due to a dialyzable, heat stable factor; 2) almost no hya...
Acrosin, Proacrosin, and Acrosin Inhibitor of Human Spermatozoa：Extraction, Quantitation, and Stability
acrosin proacrosin acrosin inhibitor human spermatozoa
2009/2/18
Ten different methods were evaluated to determine the treatment for obtaining maximal amounts of acrosin, proacrosin, and acrosin inhibitor (the acrosin system) from human spermatozoa by a single te...
Stability and transcriptional regulation of gamma-glutamyl transpeptidase mRNA expression in the initial segment of the rat epididymis
Stability transcriptional regulation gamma-glutamyl transpeptidase mRNA initial segment rat epididymis
2009/2/17
Gamma-glutamyl transpeptidase (GGT) is an enzyme believed to play a role in the protection of maturing spermatozoa in the epididymis. Our previous studies have shown that four GGT mRNAs (I-IV) trans...
Effect of Antioxidant Intake on Sperm Chromatin Stability in Healthy Nonsmoking Men
Fertility spermatozoa nutrition oxidative stress DNA fragmentation
2008/12/23
Oxidative stress is detrimental to sperm function and a significant factor in the etiology of male infertility. This report examines the association between dietary and supplementary intake of the...