zona pellucida


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Related to zona pellucida: blastocyst, Granulosa cells
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  • noun

Words related to zona pellucida

thick membrane around the mammalian ovum

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References in periodicals archive ?
Serum maintains the fertilizability of mouse oocyte matured in vitro by preventing hardening of zona pellucida. Gamete Res.
Influence of the zona pellucida of the mouse egg on folliculogenesis and fertility.
Human sperm bound to the zona pellucida have normal nuclear chromatin as assessed by acridine orange fluorescence.
Direct injection of zona pellucida antigens into the body is not feasible for controlling the overpopulation of widely distributed pest animals (26).
A universal characteristic of OGPs is their association with the zona pellucida and perivitelline space of oocytes and embryos, with the possible exception of the mouse zona pellucida.
ZP glygoproteins (ZP1, ZP2, and ZP3) are responsible for sperm adhesion to the zona pellucida, an extracellular matrix surrounding oocytes [64].
In humans, the egg floats in a jellylike envelope and is surrounded by a hard outer coat called the zona pellucida. Studies of the human zona barrier show that it is made of four major protein chains--called ZP1, ZP2, ZP3 and ZP4.
only a spermatozoon of the same species could penetrate the zona pellucida of an egg, because it binds in a species-restricted manner to the zona pellucida's glycoproteins (34).
Several reproduction-related transcripts--for example, vitelline envelope zona pellucida domain 2 (Ha-VEZPD2), vitellogenin (Ha-VTG1), sperm lysin (Ha-SL), fertilization protein (Ha-FP), tektin A1 (HaTekA1), axonemal protein 66.0 (Ha-Axp66.0), and double-sex male abnormal-3-related transcription factor 1--(Ha-DMRT1)--were identified.
Researchers at the Swedish medical university Karolinska Institutet have created a 3D structure of how sperm binds to proteins in the extracellular coat of the egg, called zona pellucida (ZP).
Consequently, some spaces were observed between the zona pellucida and trophoblastic cells.
Background & objectives: An inability or decreased ability of spermatozoa to bind to the zona pellucida (ZP), an extracellular glycoproteinaceous matrix surrounding egg, is one of the plausible causes of idiopathic infertility.