 |
Breakthrough Achieved in Research of Clinical Reproductive Medicine
China has scored a great achievement in vitro maturation (IVM), the external fertilization, a world advanced reproductive technology.
Since 1998 the Jiangsu People's Hospital and Nanjing Medical University have entered into cooperation on the IVM research. After numerous animal tests and half-year clinical experiments, altogether 11 women have been treated with IVM and three of them have successfully become pregnant, with their gestation of 29, 17, and 8 weeks respectively.
When IVM fully-grown oocytes are collected from unstimulated Graafian Follicles. These oocytes in the germinal vesicle stage can be grown in the laboratory to encourage the recommencement of meiosis. It has been proved these oocytes can reach meiosis II and become fully matured oocytes. Thus they are ready for insemination usually by intracytoplasmic sperm injection (ICSI). If fertilized the egg can then be injected into the woman as with normal in-vitro fertilization (IVF). By far, only a few countries including the ROK, the US, Canada, and Australia have grasp this world advanced assisted reproductive technology (ART).
By PD Online Staff Huang Ying
In This Section
|