what exactly is stem cell research?

I believe it is the expirementation in the use of stem cells (usually human) for different purposes. The main being growing different types of body tissue. This is because stem cells can become any type of cell so you could grow new nerve tissue for example which normally will not grow back if damaged. the specific branch of stem cell research that is the most controvesial is embryonic stem cell research as it requires the destruction of a “living” embryo.

More info-

It’s research on stem cells, of course.  (See Wikipedia definition below.)

Stem cells are the things which let you heal wounds and make new blood cells all your life, to name two things.  They’re interesting for a whole pile of reasons.  They could be used to grow replacements for whole organs on the one hand, and they can show us how organisms develop for another.  (What good is knowledge?  You never know until you have it, do you?)

What’s sick about Bush’s veto today is that the law will let parents donate the body of a dead baby to science and Federal funds can be used for any and all research on its cells, but if someone has a frozen ball of cells in a fertility clinic Bush will insist that it be flushed down the drain instead of being used for research.  In other words, Bush and his backers think a ball of 16 cells is more of a human being than a born baby.

Stem cell research is taking undifferentiated cells (meaning they have no purpose yet) and coaxing them to take on a specific function, such as tissue, muscle, hormones, etc.

The cells used are left over from In-Vitro procedures, and instead of getting thrown away, the parents can opt to have them go to research.It’s a common misconception that the cells come from aborted babies or miscarriages, but this is not the case. Once past a certain stage, (150 cells I believe) ,the cells are differentiated and have specific functions and can no longer be used for research.

If scientists had the ability to do stem cell research, as I said before, they can coax the cells into muscles, tissues, hormones, etc. It could be used to restore the skin of burn victims, livers and kidneys of diseased persons, and hormones for people with conditions such as Parkinsons.

stem cells, unspecialized human or animal cells that can produce mature specialized body cells and at the same time replicate themselves. Embryonic stem cells are derived from a blastocyst (the blastula typical of placental mammals; see embryo), which is very young embryo that contains 200 to 250 cells and is shaped like a hollow sphere. The stem cells themselves are the cells in the blastocyst that ultimately would develop into a person or animal. “Adult” stem cells are derived from the umbilical cord and placenta or from blood, bone marrow, skin, and other tissues. The similar embryonic germ line cells come from a fetus that is 5 to 9 weeks old and are derived from tissue that would have developed into the ovaries or testes.

Medical researchers are interested in using stem cells to repair or replace damaged body tissues because stem cells are less likely than other foreign cells to be rejected by the immune system when they are implanted in the body. Embryonic stem cells have the capacity to develop into every type of tissue found in an adult; germ line cells and adult stem cells are less versatile. The processes that control such development, however, are not understood at present. Stem cells have been used experimentally to form the hematopoietic (blood-making) cells of the bone marrow and heart, blood vessel, muscle, and insulin-producing tissue. Embryonic germ line cells have been used to help paralyzed mice regain some of the ability to move. Since the 1990s umbilical cord blood stem cells have sometimes been used to treat heart and other defects in children who have rare metabolic diseases and to treat children with certain anemias and leukemias. It has been shown that stem cells from this blood can migrate to damaged tissues and repair them.

Human stem cells have typically been extracted from surplus fertilized embryos produced during in vitro fertilization procedures. Some experimenters, however, have used embryos that were fertilized especially to produce stem cells. In so-called therapeutic cloning a nucleus from a patient’s body cell, such as a skin cell, would be inserted into an egg that has had its nucleus removed to produce a blastocyst whose stem cells could be used to create tissue that would be compatible with that of the patient. Such a procedure was reported in 2005 to have been successfully undertaken in part by South Korean researchers who produced stem cell lines using genetic material from patients, but the data was later determined to be fabricated. Because extraction of embryonic stem cells destroys the embryo, the use of embryonic stem cells has been opposed by opponents of abortion.

The first embryonic stem cells to be isolated were extracted by British researchers from mouse blastocysts; the first human stem cells isolated and cultured were extracted by American scientists in 1998. In 1994 a National Institutes of Health (NIH) panel argued that creating human embryos for use in certain experiments might be justified, but Congress subsequently enacted (1995) a ban on federal financing for research involving human embryos in reaction to that report. The Dept. of Health and Human Services ruled in 1999, however, that that ban did not apply to financing work with stem cells, and guidelines for financing such research were issued by NIH the next year.

President George W. Bush, who had campaigned against financing embryonic stem cell research, announced in Aug., 2001, that he would support federal funding of research with embryonic stem cells, but only with the estimated 60 stem cell lines then existing. Some scientists challenged the assumption that these 60 stem cell lines would be sufficient for experimental and therapeutic needs, while others said the figure included some stem cell lines that had not yet been determined to be viable. In fact, in 2004, there were only 15 approved stem cell lines available to researchers funded by the U.S. government. The restrictions have not prevented other researchers, in the United States and elsewhere, from developing new embryonic stem cell lines and undertaking research with them using private funding, and California voted (2004) to create a $3 billion fund to underwrite embryonic stem cell research.
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