Antisperm Antibody An ASA is defined as an immunoglobulin with antibody activity against a sperm antigen that plays a role in fertility, since not every antibody that binds to the sperm surface ...

The oocyte zona pellucida needs to interact with an oviduct protein called OVGP1 to ensure that only sperm from the same species can fertilize the egg.

Mammalian oocytes such as mouse oocytes have a highly elastic outer membrane, zona pellucida (ZP) that cannot be penetrated without significantly deforming the oocyte, even with a sharp micropipette.

Discover the crucial role of zinc sparks in mammalian fertilization, zona pellucida hardening, and embryo development.

In turn, this makes the zona pellucida more rigid, stopping any more than one sperm from worming its way into the egg. The researchers also studied the interaction between sperm and eggs carrying ...

Sperm, egg, and the zona pellucida (ZP) Luca Jovine, a professor at Karolinska Institutet and the study’s lead researcher, emphasizes the importance of understanding fertilization processes at the ...

The inner one is called the zona pellucida, a jelly cushion of protein. The outer layer is called the corona radiata — a sunlike array of helper cells that have been nurturing the egg inside the ...

Keywords: zona pellucida, human spermatozoa, sperm selection, DNA integrity, methylation, protamination, HSPA2, SPACA3 Citation: Leung ETY, Lee BKM, Lee C-L, Tian X, Lam KKW, Li RHW, Ng EHY, Yeung WSB ...

Zona pellucida thickness (ZPT) is one of the indexes to reflect the quality of oocyte and the developmental potentiality of embryo. In order to avoid the error ...

Zona pellucida (ZP)-bound spermatozoa (ZPBS) have normal morphology and nuclear DNA. Using these spermatozoa for ICSI results in better outcomes compared with conventional ICSI.