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Acrosome agenesis

Acrosomeless human spermatozoa, most of which are round-headed, hence the term round-headed or globozoospermia. These two terms are inaccurate because acrosomeless spermatozoa need not necessarily be round-headed.


07 April 2005

Dual Stain Analysis of Sperm Apoptosis and Necrosis
Sperm stained with both bisbenzimide (Hoechst 33342)and propidium iodide fluoresced red when they are necrotic (N; dead), all blue when apoptotic (A; dying) or partial blue when alive. Am J Obstet Gynecol 2003:188;1156-1157.
25 March 2005

Blastocyst from egg without zona pellucida
Early blastocyst (1) and Expanded blastocyst(2) derived from an oocyte without zona pellucida after ICSI.
Normal fertilization with two pronuclei was registered 18h after the ICSI procedure of this no z.p. zygote.
07 March 2005

Cleavage Stage Embryos
10 cell embryo available for a day 3 transfer
20 December 2004

Cleaving embryo
Embryo on day4
20 December 2004

8 cell embryo
An 8 cell embryo
20 December 2004

Day +2
4 cells Human embryo. Olympus IX70 Inverted Microscope.
20 December 2004

Day 2 "enucleated embryo"
Embryo developed from microsurgicaly enucleated 3 PN oocyte.
20 December 2004

8 cell embryo
Eight cell embryo
20 December 2004

4 Cell Embryo
Four cell embryo
20 December 2004

Embri?n 6 blast?meras
Embri?n con 6 blast?meras en d?a +2.
20 December 2004

Embri?n 3 blast?meras
Embri?n dia +2 con 3 blast?meras.
20 December 2004

Day 3 embryo
Human embryo on Day 3 of culture exhibiting increased cellular granularity or "pitting"
20 December 2004

Zona Free Day 3
Zona free day 3 embryo.
20 December 2004

Day 3 - 8 cell Embryo
8 cell embryo. Assisted Hatching opening visible (Acid Tyrodes)
20 December 2004

Day 3 - Compacting Embryo
Day 3 compacting embryo
20 December 2004




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