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Evaluation of computerized analysis of sperm movement characteristics and differential sperm tail swelling patterns in predicting human sperm in vitro fertilizing capacity
sperm movement characteristics differential sperm tail predicting human sperm
2009/2/23
Multivariate discriminant analysis was used to evaluate the usefulness of computer image analysis of sperm movement characteristics and differential patterns of sperm tail swelling after hypoosmot...
Sperm morphology assessment as an indicator of human fertilizing capacity
Sperm morphology assessment indicator human fertilizing capacity
2009/2/19
Semen samples from 95 men were examined by routine semen analysis and specific histologic staining for sperm morphology. The men were classified into fertile and infertile groups on the basis of cli...
Hexokinase present in human sperm is not tyrosine phosphorylated but its antibodies affect fertilizing capacity
Hexokinase human sperm fertilization infertility
2009/2/16
The present study was conducted to investigate the presence of hexokinase in human sperm cell, its subcellular localization, its modulation and role in capacitation/acrosome reaction, and tyrosine...
Hemizona index（HZI）demonstrates excellent predictability when evaluating sperm fertilizing capacity in in vitro fertilization patients
IVF predictability Hemizona assay IVF
2009/2/12
The objective of this work was to assess the power of the hemizona assay to predict in vitro fertilization (IVF) results using receiving operating characteristics (ROC) analysis. In a tertiary medical...
Interleukin-6 enhances the fertilizing capacity of human sperm by increasing capacitation and acrosome reaction
Interleukin-6 enhances human sperm acrosome reaction
2009/2/12
The effects of human recombinant interleukin-6 (IL-6) on human sperm penetration of zona-free hamster ova (SPA) and human sperm cell capacitation and acrosome reaction were investigated. IL-6 at h...
Altered protamine 2 expression is uncommon in donors of known fertility, but common among men with poor fertilizing capacity, and may reflect other abnormalities of spermiogenesis
Semen sperm chromatin fertilization IVF infertility
2008/12/29
During the spermatid elongation stage of spermiogenesis approximately 85% of sperm nuclear histones are replaced by protamines. Protamines increase the packing ratio of sperm chromatin, presumably fac...
Involvement of A1 Adenosine Receptors in the Acquisition of Fertilizing Capacity
A1 adenosine receptors KO mice A1 adenosine receptors mouse sperm localization capacitation caffeine fertility
2008/12/22
Ejaculated mammalian spermatozoa acquire competence to fertilize oocytes by a two-step process: capacitation followed by acrosome reaction. The biochemical and biophysical modifications occurring ...