Timing of pronuclear development and first cleavages in human embryos after subzonal insemination: influence of sperm phenotype

• Published in: Human reproduction (Oxford) Vol. 10; no. 3; p. 642
• Main Authors: van Wissen, B, Wolf, J P, Bomsel-Helmreich, O, Frydman, R, Jouannet, P
• Format: Journal Article
• Language: English
• Published: England 01.03.1995
• Subjects: Adult; Blastomeres - ultrastructure; Cell Nucleus - physiology; Cell Nucleus - ultrastructure; Embryo Transfer; Female; Fertilization in Vitro - methods; Humans; Male; Phenotype; Pregnancy; Spermatozoa - physiology; Time Factors; Zona Pellucida; Zygote - growth & development; Zygote - ultrastructure

The sequential transformations of human sperm nuclei in human eggs after subzonal insemination (SUZI; n = 104) and the influence of sperm defects on this timing were studied. This chronology was compared to that of two control series of zygotes obtained after SUZI with normal spermatozoa (n = 35) an...