Molecular Human Reproduction, Vol 4, 289-294, Copyright © 1998 by Oxford University Press
Y Ghetler, T Raz, I Ben Nun and R Shalgi
The cortical reaction (CR) in mammalian oocytes is induced following
sperm-egg membrane fusion. During intracytoplasmic sperm injection (ICSI)
the physiological cascade of gamete interaction events is bypassed. The aim
of this study was to explore CR occurrence after the ICSI procedure and its
correlation with the meiotic status of the oocytes. Unfertilized and
abnormally fertilized (one- or three- pronucleate) human oocytes were
investigated. The chromosomal status was analysed by Hoechst staining. The
CR occurrence and its fluorescent pattern were assessed by confocal
scanning laser microscope using the lectin lens culinaris and Texas Red
staining. Our results reveal a positive correlation between the activation
of oocytes and their CR. No CR was demonstrated in unfertilized-unactivated
oocytes with or without sperm in their cytoplasm. In partially activated
oocytes showing resumption of meiosis but no formation of pronuclei, a
moderate CR was observed. In fully activated oocytes displaying one or
three pronuclei, a strong CR was monitored. It was concluded that in ICSI,
as in physiological fertilization, oocyte activation is a prerequisite for
CR.
JOURNAL ARTICLE
Cortical granules reaction after intracytoplasmic sperm injection
IVF Unit, Sapir Medical Center, Kfar Saba, Israel.
![]()
CiteULike
Connotea
Del.icio.us What's this?
This article has been cited by other articles:
![]() |
Y. Ghetler, S. Yavin, R. Shalgi, and A. Arav The effect of chilling on membrane lipid phase transition in human oocytes and zygotes Hum. Reprod., December 1, 2005; 20(12): 3385 - 3389. [Abstract] [Full Text] [PDF] |
||||
![]() |
M. Jimenez-Movilla, M. Aviles, M. J. Gomez-Torres, P. J. Fernandez-Colom, M. T. Castells, J. de Juan, A. Romeu, and J. Ballesta Carbohydrate analysis of the zona pellucida and cortical granules of human oocytes by means of ultrastructural cytochemistry Hum. Reprod., August 1, 2004; 19(8): 1842 - 1855. [Abstract] [Full Text] [PDF] |
||||
![]() |
F. Miyara, F.-X. Aubriot, A. Glissant, C. Nathan, S. Douard, A. Stanovici, F. Herve, M. Dumont-Hassan, A. L. Meur, P. Cohen-Bacrie, et al. Multiparameter analysis of human oocytes at metaphase II stage after IVF failure in non-male infertility Hum. Reprod., July 1, 2003; 18(7): 1494 - 1503. [Abstract] [Full Text] [PDF] |
||||
![]() |
P.T. Goud, A.P. Goud, L. Leybaert, P.V. Oostveldt, K. Mikoshiba, M.P. Diamond, and M. Dhont Inositol 1,4,5-trisphosphate receptor function in human oocytes: calcium responses and oocyte activation-related phenomena induced by photolytic release of InsP3 are blocked by a specific antibody to the type I receptor Mol. Hum. Reprod., October 1, 2002; 8(10): 912 - 918. [Abstract] [Full Text] [PDF] |
||||

