Results: KNJ had no toxicologic effect in the general status, body weight change, and embryonic rat development, maternal rat delivery, newborn rat as well as the development status of rat.

Role of low estrogen in follicle/oocyte maturation and embryo development;

In vitro fertilization and subsequent embryo development using oocytes derived from abattoir ovaries or collected by transvaginal follicle aspiration in water buffalo;

Cloning and expression of nanos, a gene related to germ stem cell and its expression pattern in embryo development in silkworm;

Influences of Caffeine Exposure on Embryonic Development in Mice;

Alterations in hepatic metabolism of adult male rats following exposure to hydroxyprogesterone during embryonic development;

Effects of endocrine disrupting chemicals methoxychlor on reproduction and embryonic development;

The effect of overexpression of Hira on embryogenesis of Drosophila melanogaster;

Lewis oligosaccharide antigens (Lewis X, Lewis Y) which were expressed on embryonic surface play important roles during embryogenesis and implantation.

Objective To observe the ER ultrastructures in humn embryonic epithelial cells of colonic mucosa、renal tubule and hepatocytes and also their alterations in embryogenesis.