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Identification of the 12q24 locus associated with fish intake frequency by genome-wide meta-analysis in Japanese populations.


ABSTRACT: Background:Japan is traditionally a country with one of the highest levels of fish consumption worldwide, although the westernization of the Japanese diet has resulted in the reduction of fish consumption. A recent meta-analysis of genome-wide association studies (GWASs) on Western populations has identified a single nucleotide polymorphism (SNP) associated with fish intake frequency. Here, we examined the genetic basis for fish intake frequency among Japanese individuals. Results:We conducted a meta-analysis of a GWAS including 12,603 Japanese individuals and identified a susceptibility locus for fish intake frequency at 12q24 (lead variant was rs11066015, P =?5.4?×?10-11). rs11066015 was in a strong linkage disequilibrium with rs671, a well-known SNP related to alcohol metabolism. When adjusted for alcohol drinking, the association between rs11066015 and fish intake frequency was substantially attenuated. Subgroup analysis revealed that the effect of the 12q24 variant on fish intake frequency was stronger in males than in females (P for interaction?=?0.007) and stronger in the older subgroup than in the younger subgroup (P for interaction?=?0.006). Conclusions:Our findings suggest that the 12q24 locus is associated with fish intake frequency via alcohol drinking. This study can help contribute to personalized nutrition information, suggesting that fish intake should be promoted to consumers who have the rs11066015 minor allele, which is genetically linked to low fish intake frequency, especially in male and older individuals.

SUBMITTER: Igarashi M 

PROVIDER: S-EPMC6612078 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Identification of the 12q24 locus associated with fish intake frequency by genome-wide meta-analysis in Japanese populations.

Igarashi Maki M   Nogawa Shun S   Kawafune Kaoru K   Hachiya Tsuyoshi T   Takahashi Shoko S   Jia Huijuan H   Saito Kenji K   Kato Hisanori H  

Genes & nutrition 20190705


<h4>Background</h4>Japan is traditionally a country with one of the highest levels of fish consumption worldwide, although the westernization of the Japanese diet has resulted in the reduction of fish consumption. A recent meta-analysis of genome-wide association studies (GWASs) on Western populations has identified a single nucleotide polymorphism (SNP) associated with fish intake frequency. Here, we examined the genetic basis for fish intake frequency among Japanese individuals.<h4>Results</h4  ...[more]

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