In Vitro Fertilization (IVF) depends on upon the procurement of mature metaphase II oocytes, fertilization and persistence of the fertilized oocyte to the cleavage or blastocyst stage of embryonic development. At the inception of IVF, fruitful fertilization was entirely reliant upon the ability of ejaculated sperm to penetrate the outer boundaries of the oocyte, with the corona radiata (outer layer of cells surrounding the oocyte) and the zonal pellucida. The zona pellucida, which is the oocyte main boundary, permits or inhibits sperm from releasing its genetic material in to the cytoplasm (ooplasm) of the oocyte.
The top open access journals are peer reviewed scholarly journals of Andrology Open Access. The top open access journals are freely available on the public internet domain, allowing any end users to read, download, copy, distribute, prink, search or link to the full texts of the articles. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community. These journals are indexed with all their citations noted. The top open access journals are indexed in MEDLINE, PUBMED, SCOPUS, COPERNICUS, CAS, EBSCO and ISI.
Last date updated on July, 2014