Adult Stem Cell Debate

Advantages and disadvantages of adult stem cells

Pros and cons of employing adult stem cells

Though stem cells have characteristics of definition, they possess different sources. Adult stem cells, also called somatic stem cells own the same basic characteristics of all stem cells. An adult stem cell is a non-specialized cell which is capable of:

     * Long term replacement

     * Discrimination into specialized cell types

In humans, the major functions of adult stem cells are to uphold and restore specific tissues where they exist in. The precise origin of adult stem cells in mature tissues also remains unidentified, being in distinction with embryonic stem cells, which are clear in their origin.

What makes adult stem cells as useful as they are?

One of the reasons the investigation was so intrigued with adult stem cells is because researchers have discovered stem cells in most adult tissues than they had they expected. The use of embryonic stem cells has created many disagreements and that the possibility of using adult stem cells for transplantation is exhilarating. Adult stem cells have been employed for decades to transplant bone marrow but more applications are necessary to treat devastating diseases and other life-threatening ones. It looks as if that certain types of adult stem cells can dissimilate into a variety of cell types but this is reliant on the conditions that are fitting. Scientists hope to achieve control over this process of separation within a laboratory setting; adult stem cells can become the root of therapies used to take care of some of the most common but more serious diseases.

Where are adult stem cells?

Adult stem cells have originated in many tissues, but their numbers are, however, very minute. It is recommended that there are stem cells in a particular area of a tissue that stay as it is for years without separation. They are then forced to separate by disease or tissue damage. The adult tissues that are considered to contain stem cells include:

     * Skin

     * Marrow

     * Brain

     * Blood vessels

     * Liver

     * Skeletal muscle

Adult stem cells typically are inaccessible from a tissue sample of an adult. It has been found mainly in humans and some other animals. Scientists are pondering over the issue concerning the derivation of adult stem cells. The question is whether they are obtained from embryonic stem cells or whether another source is involved.

Advantages of adult stem cells

Adult stem cells have the prospective to fill a person’s specialized cells in trillions by using just a few unspecialized ones. The idea for the therapy of adult stem cell is to organize and direct the growth of adult stem cells in a laboratory and then employ them to reinstate cells that are dysfunctional in disease. Certain treatments involve the substitution of cells in the brains of people suffering from Parkinson’s disease Scientists hope to restore the dopamine-producing cells and decrease the development of the disease.

Another purpose is to generate insulin-producing cells for diabetes. With heart attacks causing massive morbidity and mortality every year, it is anticipated that adult stem cells can refurbish heart damage.

The use of adult stem cells is more extensively accepted, predominantly by the public, because it requires the devastation of an embryo with embryonic stem cells. Adult stem cells don't possess the same immunological challenges that embryonic stem cells because they are yielded from the patient. This means that a person's body is less likely to refuse the stem cells because they are well-matched to that person’s unique physiological makeup.

Challenges of adult stem cells

Regrettably, the adult stem cells are present in petite quantities and this can present the complexity to identify them and insulate in the enough large numbers to employ therapeutically. Their habitual renewal also is not as triumphant as the embryonic cells of stem and in one self; they do not reproduce with the same degree. Since the adult cells of stem aren't like that of the embryonic stem cells, they include more anomalies of DNA attained with the age. Those can be caused by the environment, toxins or the errors in the counterpart of DNA.

The adult stem cells don’t hold ethical controversy when compared to embryonic stem cells, but its realistic challenges are numerous. While scientists persist to seek ways to harvest adult stem cells, effectively, the public can anticipate new treatments for some diseases graver and more universal.