Cloned stem cells may give you a new lease of life

A cloned stem cell may bring you a new life (the new life means "to improve someone's future opportunity") Abstract paragraph The title of my article is "The cloned stem cell may give a new life It is not. A brief article of "New Scientist" magazine. It was issued on November 8, 2002. In this article, we will clone embryos (early prenatal animals or plants) that take up adult cells from the human body using therapeutic (therapeutic) clones, proliferation and removal of various tissues of stem cells (Bundle of cells) Explain how to make animals and plants.

Therapeutic cloning involves the production of cloned embryos aimed only to produce embryonic stem cells using the same DNA as the donor cells. These stem cells can be used for experiments designed to understand illness and to develop a treatment for new diseases. To date, there is no evidence that human embryos for therapeutic cloning have been produced. The most abundant source of embryonic stem cells is the tissue formed within the first 5 days after the egg begins to divide. In this developmental phase, called blastocysts, the embryo is composed of about 100 cells and can be of any cell type. At this stage of development, we collect stem cells from cloned embryos and leave the embryos broken in the test tube.

Recently, scientists at the New York Stem Cell Foundation Laboratory were able to create growing clones of embryos able to acquire a series of self-multiplications of embryonic stem cells. However, since they do not first remove the egg cells, the embryo is actually abnormal and has an extra set of chromosomes.

Therapeutic cloning is the development of a disease treatment method using cloned cells. In therapeutic cloning, human DNA is inserted into special types of cells, which may be stem cells, other types of cells without nucleus. These cells proliferate in the laboratory instead of inserting the developing cells into the alternative maternal to form new cells. In the laboratory, a specific chemical substance that can differentiate stem cells into the tissue of interest It is given. Looking at this, thousands of people are waiting for organ transplants. After the donor dies, the organ is quickly harvested and must be sent to the hospital for transplant within a few hours. To avoid dangerous situations where rejection, the body attacks new organs, the organs must also be matched to the patient. Therapeutic cloning makes it possible to avoid these problems. Therapeutic cloning can be used to remove cells from the patient's own body and inject DNA into the stem cells.