петак, 24. август 2012.

Possible Causes of Alopecia Areata

Alopecia areata is considered an autoimmune disease, in which the immune system, which is designed to protect the body from foreign invaders such as viruses and bacteria, mistakenly attacks the hair follicles, the tiny cup-shaped structures from which hairs grow. This can lead to hair loss on the scalp and elsewhere.
Alopecia research ranges from the most basic studies of the mechanisms of hair growth and hair loss in mice to testing medications and ways to apply medications to help regrow hair in people. Both the National Institutes of Health and the National Alopecia Areata Foundation support research into the disease and its treatment. This disease can also be connected to other autoimmune diseases: lupus (chronic disorder that usually affects skin, joints or kidneys), thyroid disease (impaired function of the thyroid gland), vitiligo (condition causing depigmentation of patches of skin), rheumatoid arthritis, some allergic disorders and diabetes. Emotional and mental stress could also be the alopecia areata cause, as well as trauma, relocation, death in the family, pregnancy, illness, accident or other major life changes.
Scientists are studying the possible genetic causes and mechanism of the disease both in families that have one or more people with the disease and in the general population. An understanding of the genetics of the disorder will aid in disease prevention, early intervention, and development of specific therapies. By studying how hair follicles form in mouse embryos, researchers hope to gain a better understanding of hair cycle biology that may lead to treatments for the underlying disease process.
Epithelial stem cells are immature cells that are responsible for regenerating and maintaining a variety of tissues, including the skin and the hair follicles. Stem cells in the follicle appear to be spared from injury in alopecia areata, which may explain why the potential for regrowth is always there in people with the disease. By studying the biology of these cells, scientists hope to gain a better understanding of factors that trigger the disease.
In most instances, alopecia is a harmless condition leading only to minor disruption of physical appearance. It mostly affects the scalp but may not spare other hair-bearing areas like eyebrows, beard or limbs. It commences as a smooth, hairless patch or several patches. Other associated features may include redness of skin, itching or very short broken hairs at the affected site. In localized or patchy alopecia, re-growth of hair may be seen within a year in most of the individuals. Rarely hair loss may be complete involving the entire scalp. The prognosis is very poor in such cases with absence of re-growth of hair.
The emotional aspects of hair loss can be hard. Our world considers hair as a sign of youth and good health. The good news is that alopecia areata does not affect overall health. It should not stop you from achieving your goals and dreams. You should not let it stop you from doing well in school, sports, and work.
Marbo Shampoo is effective against hair loss because it contains herbal ingredients from different medicinal herbs. Active ingredients full of vitamins and mineral salts stimulate local circulation and hair root renewal. Sage and rosemary extracts regulate sebum secretion, prevent scalp greasing and soothe scalp itching and irritation. Thin and scarce hair becomes stronger, and in many cases, especially in women, thicker.

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