The quality of the human oocyte determines the success of fertilization and affects the
consequent embryo development, pregnancy and birth; it therefore serves as a basis for …

The conventional method of human oocyte maturation in vitro in the presence of
gonadotrophins continues to be a relatively low-success procedure in the assisted …

Various morphological and cytological traits of oocytes and their surrounding cumulus cells
may be used to select oocytes for assisted reproduction. However, even with careful …

The existence of ovarian stem cells (OSCs) in women as well as their physiological role in
post-menopausal age are disputed. However, accumulating evidence demonstrated that …

STUDY QUESTION Are the large cells derived from cultured DEAD box polypeptide 4
(DDX4)-positive oogonial stem cells (OSCs), isolated from the ovarian cortex of non …

Oocytes play a pivotal role in the cycle of human life. As we discuss here, after emerging
from germline stem cells in the fetus, they grow in a follicular niche in which development is …

BACKGROUND Immature human oocytes matured in vitro, particularly those from
gonadotrophin stimulated ovaries, are developmentally incompetent when compared with …

In vitro fertilization technology consists of the selection and fertilization of oocytes, the
production and transplantation of embryos to recipients. The quality of oocytes has a direct …

In spite of generally accepted dogma that the total number of follicles and oocytes is
established in human ovaries during the fetal period of life rather than forming de novo in …

The efficacy of classical IVF techniques is still impaired by poor implantation and pregnancy
rates after embryo transfer. This is mainly due to a lack of reliable criteria for the selection of …