Albinism is a condition in which the genetic nature of a fault occurs in the production of melanin. It is hereditary and can be classified into two types: tyrosinase-negative (when there is no production of melanin), and tyrosinase-positive (when there is little production of melanin).
Features of Albinism
Melanin plays a very important role, because it is what forms a natural barrier against solar radiation. It is distributed throughout the body, being responsible not only for the color, but also for skin protection.
This genetic alteration in the production of melanin is responsible for the partial or total absence of pigmentation of the eyes, skin, hair and hair of albinos may occur both in humans but also in animals and plants.
A body which does not have this genetic defect, melanin is produced by known as an amino acid tyrosine. In the case of albino tyrosinase presents itself inactive, therefore, will not produce pigment.
The skin of albino is white, brittle and photosensitive, therefore, should not be exposed to solar radiation. In these individuals, exposure to sun tanning does not produce, instead, can cause burns of varying degrees. People with this failure in pigmentation are more susceptible to developing skin cancer early.
There is also the ocular albinism, this is less severe than the tyrosinase negative albinism, as in this case, the only area affected is the eyes, the presence of this failure, present a variation in iris color.
Features of Albinism
Melanin plays a very important role, because it is what forms a natural barrier against solar radiation. It is distributed throughout the body, being responsible not only for the color, but also for skin protection.
This genetic alteration in the production of melanin is responsible for the partial or total absence of pigmentation of the eyes, skin, hair and hair of albinos may occur both in humans but also in animals and plants.
A body which does not have this genetic defect, melanin is produced by known as an amino acid tyrosine. In the case of albino tyrosinase presents itself inactive, therefore, will not produce pigment.
The skin of albino is white, brittle and photosensitive, therefore, should not be exposed to solar radiation. In these individuals, exposure to sun tanning does not produce, instead, can cause burns of varying degrees. People with this failure in pigmentation are more susceptible to developing skin cancer early.
There is also the ocular albinism, this is less severe than the tyrosinase negative albinism, as in this case, the only area affected is the eyes, the presence of this failure, present a variation in iris color.
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