Sentences with phrase «skin pigmentation among»
Together, these sites account for about 30 per cent of the variation they found in skin pigmentation among the volunteers.
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Variation in pigmentation among human populations may reflect local adaptation to regional light environments, because dark skin is more photoprotective, whereas pale skin aids the production of vitamin D. Although genes associated with skin pigmentation have been identified in European populations, little is known about the genetic basis of skin pigmentation in Africans.
A blood test to check for any anomalies would be best especially with platelets, but other changes to the skin's pigmentation may be caused by infection, inflammation, hormonal conditions (Cushing's for example) among other conditions.