rs10510227 (CNTN4): Facial Skin Trait Variant

Key takeaways

• rs10510227 sits near the CNTN4-AS2 and CNTN4 genes and appeared among 46 candidate SNPs in a skin-trait GWAS of Korean women.
• The study examined five facial traits in 749 women aged 30-50: melanin level, gloss, hydration, wrinkle depth, and elasticity.
• This is a preliminary, single-study finding that has not been independently replicated.
• The significance threshold used (p < 1x10^-5) is less stringent than the standard genome-wide threshold (p < 5x10^-8), calling for caution in interpretation.
• Machine-learning models using identified SNPs reached moderate predictive accuracy (r2 = 0.64-0.73) for skin traits in this cohort.

What the research says rs10510227, located in the CNTN4-AS2 and CNTN4 region, was identified as one of 46 novel SNPs surpassing a suggestive significance threshold (p < 1x10^-5) in a GWAS of 749 Korean women aged 30-50 years who were evaluated for five facial phenotypes. The five phenotypes studied were melanin level, skin gloss, hydration, wrinkle depth, and elasticity; the study found 3 SNPs for melanin, 20 for gloss, 12 for hydration, 6 for wrinkle, and 5 for elasticity, though the available study text does not specify which of these phenotypes rs10510227 is individually associated with. Ridge regression models built from the identified SNPs achieved the highest predictive accuracy across all five skin traits (r2 = 0.6422-0.7266 using five-fold cross-validation in n=749 participants).

Reported associations

• Facial skin phenotypes (Korean women): rs10510227 was identified as one of 46 novel SNPs associated with at least one of five facial phenotypes -- melanin level, skin gloss, hydration, wrinkle depth, or elasticity -- at p < 1x10^-5 in a sample of 749 Korean women aged 30-50. The specific phenotype or phenotypes individually linked to this SNP are not identifiable from the available study text.

Evidence quality The single study reporting this association enrolled 749 Korean women aged 30-50 years and applied a suggestive significance threshold of p < 1x10^-5, which is less conservative than the conventional genome-wide cutoff of p < 5x10^-8 used to control false-positive rates in large-scale GWAS. No independent replication cohort was described in the available study text, and the sample was limited to Korean women in a specific age range, so findings may not generalize to other ethnic groups, sexes, or ages. The reported model accuracy (r2 = 0.6422-0.7266) reflects the joint contribution of multiple identified SNPs through ridge regression, not the individual effect of rs10510227 alone. Overall, this evidence is preliminary and requires independent replication before strong conclusions can be drawn.

Lifestyle considerations No lifestyle considerations on file for this variant.