Sentences with phrase «skin pigmentation gene»

Previous studies of a skin pigmentation gene called MC1R had led many geneticists to think that dark skin colour — which is thought to protect against UV damage — is a fixed and consistent trait in all people of African descent.

Not exact matches

Another reason why a baby might have Heterochromia iridium or Heterochromia iridis is Waardenburg syndrome in which a gene mutation occurs, causing changes in the pigmentation levels of the hair, iris and skin.

More than a hundred sites in the genome showed strong evidence of recent selection, including genes that affect muscle tissue, hair, hearing, immune - system function, skin pigmentation, sense of smell, and the body's response to heat stress.

We identify previously uncharacterized genes and variants associated with skin pigmentation in ethnically diverse Africans.

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.

The researchers also looked at the gene expression of skin cells from people with psoriasis and found decreased expression of the genes involved in pigmentation signaling, correlated with increased amounts of IL - 17 and TNF.

«Increased eye cancer risk linked to pigmentation genes that dictate eye color: New research identifies genetic mechanisms behind rare form of melanoma are also associated with genetic risk for skin melanoma.»

By working closely with the KhoeSan, a group of populations indigenous to southern Africa, the researchers have found that the genetics of skin pigmentation become progressively complex as populations reside closer to the equator, with an increasing number of genes — known and unknown — involved, each making a smaller overall contribution.

Approximately 15 genes have been directly associated with skin pigmentation variation in humans, leading to its characterization as a relatively simple trait.

All these things like; skin pigmentation, eye color, certain diseases are the result of our parent's genes which present in our body.

In addition to affecting coat colors, genes also control pigmentation of the total body including the eyes and skin as well as coat color.