Correlation of sperm parameters with apoptosis assessed by dual fluorescence DNA integrity assay.
Failed fertilization after intracytoplasmic sperm injection or miscarriages occurs in cases involving apoptotic and necrotic sperm. Identifying normal sperm is important for successful assisted reproductive technologies (ART) procedures. The study was conducted to correlate sperm parameters with intact sperm with normal DNA assessed by the dual stain assay in 118 separate individuals. The results showed differences in percent DNA intact sperm in individuals with normal W.H.O. sperm features (62 +/- 1.1; mean +/- S.E.M.) compared with oligoasthenoteratozoospermia patients (38 +/- 5.3). Individuals whose sperm had fertilizing capacity had higher percentages of intact DNA (60 +/- 1.3 versus 47 +/- 2.4). The percentages of intact DNA sperm were significantly correlated to total motility in semen (R = 0.7), post-wash motility (R = 0.6), rapid progression (R = 0.6), intact acrosome (R = 0.5), and strict morphology (R = 0.5). There were no correlations with the remaining parameters. The dual stain assay identified sperm with normal physiology and fertilizing capacity. The dual stain assay measures DNA integrity and is a promising method to select normal sperm for ART.
Siddighi
S
S
Department of Gynecology and Obstetrics, Loma Linda University School of Medicine, California 92350, USA.
Patton
W C
WC
Jacobson
J D
JD
King
A
A
Chan
P J
PJ
D004247:DNA / Q000032:analysis*; D006801:Humans; D007248:Infertility, Male; D008297:Male; D008856:Microscopy, Fluorescence; D013081:Sperm Motility / Q000502:physiology; D013094:Spermatozoa / Q000737:chemistry* / Q000502:physiology*
D004247:DNA