zona pellucida


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Related to zona pellucida: blastocyst, Granulosa cells

zona pellucida

[′zō·nə pə′lüs·əd·ə]
(histology)
The thick, solid, elastic envelope of the ovum. Also known as oolemma.
References in periodicals archive ?
Therapeutic effect of Bushen Huoxue recipe on autoimmune premature ovarian failure mice established by immunization with recombinant porcine zona pellucida 4 antigen.
The enzymes create a hole in the egg zona pellucida that the sperm can pass through.
Key words Baculovirus-expression system--human zona pellucida glycoprotein-3--monoclonal antibody--spermatozoa-- streptavidin sepharose beads
Zona pellucida induces activation of phospholipase A2 during acrosomal exocytosis in Guinea pig spermatozoa.
Structural and functional relationship between mouse and hamster zona pellucida glycoproteins.
In view of speculation that some embryos may be unable to result in a pregnancy because they could not hatch from the encapsulating zona pellucida (ZP), assisted hatching was introduced in the late 1980s.
Expression of RNA coding for zona pellucida proteins ZP2 and ZP3 also appeared to be up-regulated in individual male (2.
In the female this blockage is undertaken by the egg covers (the zona pellucida in mammals and the perivitelline coat in mollusks).
Randomized controlled study of human zona pellucida dissection using the zone infrared laser optical system: evaluation of blastomere damage, embryo development, and subsequent hatching.