Abstract Study question We compared a sperm selection protocol using cumulus oophorus complexes with swim up preparation, evaluating the effects on parameters and ICSI outcomes Summary answer Spermatozoa selected showed higher rates of normal morphology, good motility basal semen traditional pellet protocol. What is known already It that head mature spermatozoa has hyaluronan receptor allows th...

Tienthai, P. 2003. Studies on the sperm reservoir of the pig oviduct. With special reference to intra-luminal fluid, hyaluronan contents and sperm capacitation. Doctor’s dissertation. ISSN 1401-6257, ISBN 91-576-6375-0. During sperm transport in the female pig a proportion of spermatozoa are arrested, often for 24 h or more, in a particular segment of the utero-tubal junction (UTJ) and the adja...

BACKGROUND Our preceding studies have already demonstrated the advantage of intracytoplasmic morphologically selected sperm injection (IMSI) over the conventional IVF-ICSI procedure in terms of pregnancy rate. This study was undertaken to determine whether the increased pregnancy outcome was attributable to the preferred nuclear morphology of the selected spermatozoa, and not to the special spe...

The aim of this study was to evaluate the effect of sperm DNA damage and protamine deficiency on fertilization and embryo development post-intracytoplasmic sperm injection (ICSI), and also to assess the effect of protamine deficiency on DNA damage. Semen samples were collected from 28 patients participating in the ICSI programme. Following sperm preparation and ICSI, the remaining processed sem...