title: Plasma resistin is associated with single nucleotide polymorphisms of a possible resistin receptor, the decorin gene, in the general Japanese population.
abstract: Resistin is an adipokine secreted from adipocytes in mice. We previously reported that a single nucleotide polymorphism (SNP) -420 (rs1862513) in the human resistin gene (RETN), is correlated with plasma resistin. Decorin is a multifunctional proteoglycan, and its isoform, lacking 14 amino acids from the N terminal region of mature core decorin, recently was identified as a resistin receptor in mice. To examine whether SNPs in the vicinity of the human decorin gene (DCN) are associated with plasma resistin, we cross-sectionally analyzed six tag SNPs selected around DCN in the same linkage disequilibrium block in 2,078 community-dwelling Japanese subjects. Plasma resistin was associated with the rs7139228, rs7956537, rs516115, and rs3138167 genotypes in DCN. A multiple regression analysis revealed that the genotype of rs7308752 (G/G) or rs516115 (C/C) was associated with decreased plasma resistin after adjusted for age, sex, BMI, and the RETN SNP rs1862513. The effect of rs7139228 and rs1862513 seemed to be additive without synergistic interaction. Therefore, plasma resistin was associated with some tag SNPs around DCN in the general Japanese population. The possibility that human decorin is a human resistin receptor should be pursued.
authors.affiliation: Department of Molecular and Genetic Medicine, Ehime University Graduate School of Medicine, Ehime, Japan. onuma@m.ehime-u.ac.jp
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Onuma
authors.forename: Yasuharu
authors.initials: Y
authors.lastname: Tabara
authors.forename: Ryoichi
authors.initials: R
authors.lastname: Kawamura
authors.forename: Jun
authors.initials: J
authors.lastname: Ohashi
authors.forename: Wataru
authors.initials: W
authors.lastname: Nishida
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Takata
authors.forename: Masaaki
authors.initials: M
authors.lastname: Ochi
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Nishimiya
authors.forename: Ryuichi
authors.initials: R
authors.lastname: Kawamoto
authors.forename: Katsuhiko
authors.initials: K
authors.lastname: Kohara
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Miki
authors.forename: Haruhiko
authors.initials: H
authors.lastname: Osawa
mesh_terms: D000368:Aged; D044466:Asian People / Q000235:genetics*; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D058575:Decorin / Q000097:blood / Q000235:genetics*; D005260:Female; D006801:Humans; D007333:Insulin Resistance / Q000235:genetics; D007564:Japan; D015810:Linkage Disequilibrium; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D052243:Resistin / Q000097:blood*
chemical_list: C546878:DCN protein, human; D058575:Decorin; C499624:RETN protein, human; D052243:Resistin