Genetic variants associated with skin aging in the Chinese Han population. Issue 1 (April 2017)

• Record Type: Journal Article
• Authors: Gao, Wenshan; Tan, Jingze; Hüls, Anke; Ding, Anan; Liu, Yu; Matsui, Mary S.; Vierkötter, Andrea; Krutmann, Jean; Schikowski, Tamara; Jin, Li; Wang, Sijia
• Is Part Of: Journal of dermatological science. Volume 86:Issue 1(2017:Apr.)
• Page Start: 21
• Page End: 29
• Publication Date: 2017-04
• Subjects: AhR aryl hydrocarbon receptor -- AM arithmetic mean -- AMR arithmetic mean ratio -- BMI Body mass index -- BNC2 basonuclin 2 -- CI confidence interval -- COL1A2 collagen type I alpha 2 -- GM geometric mean -- GMR geometric mean ratio -- SCINEXA™ Score for intrinsic and extrinsic skin aging -- SNP single nucleotide polymorphism; Skin aging -- Chinese Han population -- Candidate SNPs -- Candidate genes; Dermatology -- Periodicals; Skin Diseases -- Periodicals; Dermatologie -- Périodiques; 616.5005
• DOI: 10.1016/j.jdermsci.2016.12.017
• Languages: English
• ISSNs: 0923-1811

Abstract

Highlights: This is the first report of a candidate gene study conducted for skin aging signs in Han Chinese. Our results showed genetic risk factors for skin aging signs (pigmentation, wrinkles or laxity) in Han Chinese, and that these are further modified by anatomical site. Different genetic variants could be responsible for distinct skin aging signs characteristic of Caucasian compared with an East Asian ethnic group. Abstract: Background: The progression and manifestation of human skin aging has a strong genetic basis; however, most of the supporting evidence has been gathered in Caucasian populations. The genetic contribution to the variation in skin aging in non-Caucasian populations is poorly understood. Objective: To investigate the genetic risk factors of relevance for skin aging in East Asians, we conducted the first candidate gene study for signs of skin aging in Han Chinese. Methods: We collected skin aging and genotype data in 502 female Han Chinese from the Taizhou cohort. We evaluated skin aging by the validated skin aging score SCINEXA™. Confounding factors were assessed through a questionnaire. We obtained the genotype data for 21 candidate SNPs and for a further 509 SNPs from 16 related candidate genes. Associations were tested by linear and logistic regression analyses and adjusted for potential confounders. Results: Our candidate study found a significant association between SNP rs2066853 in exon 10 of the aryl hydrocarbon receptor gene AHR and crow's feet. In addition, we found a significant association between SNP rs10733310 in intron 5 of BNC2 and pigment spots on the arms, and between SNP rs11979919, 3 kb downstream of COL1A2, and laxity of eyelids. Conclusions: Our results identified genetic risk factors for signs of skin aging (pigmentation, wrinkles or laxity) in Han Chinese. We also found that the manifestation of skin aging is further modified by anatomical site. Together with previous work, our results also suggest that different genetic variants could be responsible for distinct skin aging signs characteristic of Caucasians compared to East Asians.