title: Correlation between single nucleotide polymorphisms in a calprotectin subunit gene and risk of periodontitis in a Chinese population.
abstract: S100A8, the light subunit of calprotectin, has been known to be associated with periodontal inflammation. The present study looked to detect whether three polymorphisms in the upstream region of the S100A8 gene are correlated with periodontitis. Three hundred and twenty one subjects, including chronic periodontitis (CP) patients, aggressive periodontitis (AgP) patients and periodontally healthy controls, were recruited. The SNPs rs3795391, rs3806232 and rs3885688 were analyzed by PCR-RFLP analysis. No person carried the rs3885688 polymorphism in this cohort. For the other two polymorphisms, the combined effects of genotype/allele and gender were shown to be associated with the risk of periodontitis using multivariate logistic regression analysis. The G+ genotype/G allele may be considered to exert a significant protective effect in males against AgP (Genotype: rs3795391: P= 0.032, rs3806232: P= 0.017; Allele: rs3795391: P= 0.024, rs3806232: P= 0.013). Although the combined effects of genotype and gender on CP susceptibility were not observed for these two polymorphisms, there does seem to be increased risk of CP in males with allele A compared to females with allele A (rs3795391: P= 0.008; rs3806232: P= 0.009). Hence we found an important association between polymorphisms in the S100A8 gene and periodontitis in a Chinese population.
authors.affiliation: Department of Periodontology, School of Stomatology, Peking University, 22 Zhong Guan Cun Nan Da Jie, Beijing 100081, P. R. China.
authors.forename: QiYan
authors.initials: Q
authors.lastname: Li
authors.forename: HuanXin
authors.initials: H
authors.lastname: Meng
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
authors.forename: Li
authors.initials: L
authors.lastname: Xu
authors.forename: ZhiBin
authors.initials: Z
authors.lastname: Chen
authors.forename: Dong
authors.initials: D
authors.lastname: Shi
authors.forename: XiangHui
authors.initials: X
authors.lastname: Feng
authors.forename: XiaoLing
authors.initials: X
authors.lastname: Zhu
authors.forename: HongShan
authors.initials: H
authors.lastname: Zhao
authors.forename: CaiFang
authors.initials: C
authors.lastname: Cao
mesh_terms: D000328:Adult; D000483:Alleles; D044466:Asian People / Q000235:genetics; D001483:Base Sequence; D040501:Calgranulin A / Q000235:genetics*; D016022:Case-Control Studies; D002681:China; D017931:DNA Primers / Q000235:genetics; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010518:Periodontitis / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D012307:Risk Factors; D012727:Sex Characteristics
chemical_list: D040501:Calgranulin A; D017931:DNA Primers