Acrosomal morphology as a novel criterion for male fertility diagnosis: Relation with acrosin activity, morphology (strict criteria), and fertilization in vitro
MetadataShow full item record
Objective: To determine the relationships between sperm acrosin activity, sperm morphology evaluated according to strict criteria, visually observed acrosomal morphology, and IVF rates. Design: Prospective analytic study. Acrosin activity was determined on all semen samples together with a standard semen analysis. Emphasis was placed on sperm morphology and especially a novel criterion viz acrosome morphology (acrosome index) as recorded with bright field microscopy. Setting: University-based tertiary care center. Patients: Thirty-three couples undergoing IVF or GIFT with two or more metaphase II ova inseminated in vitro. Main Outcome Measure: In vitro fertilization rates of inseminated ova. Results: Strong correlations were found between acrosome index, normal sperm morphology, and IVF rates. An acrosome index cutoff value could be established at >10% normal acrosomes for IVF rates of ≥50% (sensitivity and specificity = 100%) and an acrosin activity cutoff value at >18 μIU/106 sperm. A multiple linear regression analysis showed that the acrosome index and acrosin activity added a significant contribution to the explanation of the variation in the fertilization rates. Conclusions: A strong positive correlation was found between acrosome index and IVF rates. Although the numbers of the study are small, the results indicate that the acrosome index possibly may be regarded as an additional tool in the prediction of IVF outcome and especially may be of value in the group of men with severe teratozoospermia, i.e., ≤4% morphologically normal spermatozoa.
Please cite this item using this persistent URLhttp://hdl.handle.net/10019.1/13784
Showing items related by title, author, creator and subject.
Menkveld R.; Kruger T.F. (1995)The purpose of this paper was to compare the validity of strict criteria for sperm morphology evaluation with other evaluation criteria in the diagnosis and prognosis of male fertility potential. Adoption of strict criteria ...
Coetzee K.; Kruger T.F.; Menkveld R.; Swanson R.J.; Lombard C.J.; Acosta A.A. (1989)The competence of the sperm penetration assay (SPA) to predict male fertility, as determined by normal sperm morphology and the fertilizing potential, as shown by human in vitro fertilization (IVF), was investigated. A ...
Coetzee K.; Kruge T.F.; Lombard C.J. (1998)The aim of the study was to conduct a structured review of the literature published on the use of normal sperm morphology, as an indicator of male fertility potential in the in-vitro fertilization (IVF) situation, and to ...