OBJECTIVE: To investigate the relationship between the protamine 1 to protamine 2 (P1/P2) ratio and the rate of sperm DNA fragmentation in sperm samples from human males with proven fertility and three different cohorts of male patients. DESIGN: P1/P2 ratio was analyzed using acid-urea polyacrylamide acid-urea gels electrophoresis (PAGE). Sperm DNA fragmentation using sperm chromatin dispersion methodology was analyzed after 0, 4, 8, and 24 hours of incubation at 37°C. SETTING: University me...Expand abstract
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Protamine 1 to protamine 2 ratio correlates with dynamic aspects of DNA fragmentation in human sperm.
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