Mario capecchi, oliver smith and Martin Evans were awarded the 2007 Nobel Prize in Physiology or Medicine by Karolinska Medical College in Sweden, and shinya yamanaka and Wang Yuanyuan were awarded the 20 12 Nobel Prize in Physiology or Medicine in recognition of their outstanding contributions in the field of stem cell research.
Nathan Newman grew up in a famous family of doctors in the international medical field. With his unique vision and unremitting research spirit, he became a world-renowned cosmetic surgeon, opened a well-known medical cosmetic clinic in Beverly Hills, California, USA, and is now the chief medical consultant of American business Jess Global Group.
Dr Newman received a complete education and training in a famous medical school in America. After graduating from Albert Einstein Medical College in new york, he immediately completed the internal medicine internship course at UCLA-VA Medical Center.
Then he worked as a resident intern in dermatology at Cook County Hospital in Chicago, and later won a scholarship from the American Society of Plastic Surgery to complete his doctorate in plastic surgery in Riverside, California. These complete academic experiences have been certified by the Dermatology Committee.
As early as19th century, developmental biologists knew that fertilized eggs would soon start to divide. First, the fertilized egg of 1 is divided into two cells, and then continues to divide until it is divided into a cell mass with 16 to 32 cells, which is called a morula. At this time, if the cells that make up the morula are separated and implanted into the mother's uterus, each cell can develop into a complete embryo. This kind of cell is embryonic stem cell, which belongs to totipotent stem cell.
Tissue stem cells can be obtained from bone marrow, umbilical cord, placenta and fat. Everyone has some stem cells in his body that accompany him all his life. However, the older people get, the less stem cells there are. In order to make up for the shortage of stem cells, some scientists suggest obtaining stem cells from embryos or fetuses and other animals. Conduct training and research.