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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/760
Title: A replication study confirms the association of GWAS-identified SNPs at MICB and PLCE1 in Thai patients with dengue shock syndrome
Authors: Dang, Tran Ngoc
Naka, Izumi
Areerat Sa-Ngasang
Surapee Anantapreecha
Sumalee Chanama
Nuanjun Wichukchinda
Pathom Sawanpanyalert
Jintana Patarapotikul
จินตนา ภัทรโพธิกุล
Tsuchiya, Naoyuki
Ohashi, Jun
Mahidol University. Faculty of Tropical Medicine. Department of Microbiology and Immunology.
Ohashi, Jun
Keywords: Association;Dengue shock syndrome (DSS);Expression;MICB, PLCE1;Polymorphism;Open Access article
Issue Date: 17-May-2014
Citation: Dang TN, Naka I, Sa-Ngasang A, Anantapreecha S, Chanama S, Wichukchinda N, et al. A replication study confirms the association of GWAS-identified SNPs at MICB and PLCE1 in Thai patients with dengue shock syndrome. BMC Med Genet. 2014 May 17;15:58.
Abstract: BACKGROUND: Dengue shock syndrome (DSS), a severe life-threatening form of dengue infection, mostly occurs in children. A recent genome wide association study (GWAS) identified two SNPs, rs3132468 of major histocompatibility complex class I polypeptide-related sequence B (MICB) and rs3765524 of phospholipase C, epsilon 1 (PLCE1), associated with DSS in Vietnamese children. In this study, to examine whether an identical association is found in a different population, the association of these two SNPs with DSS was assessed in Thai children with dengue. METHODS: The rs3132468 and rs3765524 SNPs were genotyped in 917 Thai children with dengue: 76 patients with DSS and 841 patients with non-DSS. The allele frequencies were compared between DSS and non-DSS groups by one-sided Fisher's exact test. The association of rs3132468 and rs3765524 with the mRNA expression levels of MICB and PLCE1 were assessed in EBV-transformed lymphoblastoid cell lines. RESULTS: The reported DSS-risk alleles were significantly associated with DSS in Thai patients with dengue (one-sided P = 0.0213 and odds ratio [OR] = 1.58 for rs3132468-C and one-sided P = 0.0252 and OR = 1.49 for rs3765524-C). The rs3132468-C allele showed a significant association with lower mRNA level of MICB (P = 0.0267), whereas the rs3765524-C allele did not. These results imply that the MICB molecule may play an important role in the prevention of DSS in dengue infection. CONCLUSIONS: Together with previous association studies, we conclude that rs3132468-C at MICB and rs3765524-C at PLCE1 confer risk of DSS in Southeast Asians.
URI: http://repository.li.mahidol.ac.th/dspace/handle/123456789/760
metadata.dc.identifier.url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4030448/pdf/1471-2350-15-58.pdf
ISSN: 1471-2350 (electronic)
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