The optimum oxygen tension for culturing mammalian embryos has been widely debated by
the scientific community. While several laboratories have moved to using 5% as the value for …

Early embryo development requires the production and expenditure of large amounts of
cellular energy for cell growth, division and differentiation. Consequently, information about …

Along with the transition from maternal to embryonic genome control the mammalian
preimplantation embryo undergoes significant changes in its physiology during …

In human in-vitro fertilization (IVF)-embryo transfer, the in-vitro culture environment differs
from in-vivo conditions in that the oxygen concentration is higher, and in such conditions the …

Oxygen radicals are involved in the in vitro block phenomenon of embryo development,
because a low oxygen tension and superoxide dismutase (SOD) have been shown to …

In the first trimester of human pregnancy villous cytotrophoblasts are able to differentiate to
form either the overlying syncytiotrophoblast layer or, in anchoring villi, extravillous …

During the preimplantation period, in vitro cultured males have a higher metabolic rate,
different gene expression, and grow faster than females. It has been suggested that under …

The effects of free radicals and hypotaurine on the development of bovine embryos
produced by in vitro fertilization of in vitro-matured oocytes were examined. Embryos that …

This review uses nutritional markers of normal and impaired development to address the
question; what makes a viable mammalian preimplantation embryo? Resolution of this …

The advent of in vitro fertilization (IVF) in animals and humans implies an extraordinary
change in the environment where the beginning of a new organism takes place. In mammals …