pigmentation-related genesMC1RとDCTの機能的ポリモルフィズムでは,湿った年齢に関連する黄斑変性との集団特有の関連が示されています

Mika Reinisalo1, Seppo Helisalmi2, Ali Koskela3

  • 1School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, P.O.Box 1627, Kuopio, FI-70211, Finland.

PubMed
まとめ

染色体遺伝子DCTとMC1Rの変異は,年齢関連の黄斑変性 (AMD) リスクと関連しています. これらの遺伝子変異は,AMD発症に影響を及ぼす可能性があり,その影響において集団の違いが観察されています.

関連する概念動画

Pigmentation01:19

Pigmentation

The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
4.5K
Pleiotropy01:33

Pleiotropy

Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
43.4K
Epistasis01:39

Epistasis

In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...
50.3K