11.   When these cells were injected into the brains of rats that had artificially induced strokes, the rats were able to function normally, she says.

12.   When the cells were injected in rats that are genetically incapable of making myelin, they successfully clad the rat neurons in insulation.

13.   Within the next five years, scien tists will be injecting embryonic cells into animals to see if they renew heart muscles and tissues of other organs.

14.   After it worked in test tubes, she injected human cells with the cancer virus or with SDS-treated virus and then implanted those cells inside mice.

15.   But the researchers have also experimented with injecting cells with DNA from skin cells.

16.   In another experiment, researchers injected cells into tail veins of mice.

17.   In one new experiment, researchers injected single cells into early stage mouse embryos and checked the resulting animals after birth.

18.   In other mice, which received betulinic acid when the melanoma cells were injected, the cells did not form tumors.

19.   In still other mice, which received betulinic acid when the melanoma cells were injected, the cells did not form tumors.

20.   Researchers believe these fresh cells could be injected into patients to boost or repair ailing organs.