PMID- 23967108 OWN - NLM STAT- MEDLINE DCOM- 20140318 LR - 20231106 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 8 IP - 8 DP - 2013 TI - Genetic susceptible locus in NOTCH2 interacts with arsenic in drinking water on risk of type 2 diabetes. PG - e70792 LID - 10.1371/journal.pone.0070792 [doi] LID - e70792 AB - BACKGROUND: Chronic exposure to arsenic in drinking water is associated with increased risk of type 2 diabetes mellitus (T2DM) but the underlying molecular mechanism remains unclear. OBJECTIVES: This study evaluated the interaction between single nucleotide polymorphisms (SNPs) in genes associated with diabetes and arsenic exposure in drinking water on the risk of developing T2DM. METHODS: In 2009-2011, we conducted a follow up study of 957 Bangladeshi adults who participated in a case-control study of arsenic-induced skin lesions in 2001-2003. Logistic regression models were used to evaluate the association between 38 SNPs in 18 genes and risk of T2DM measured at follow up. T2DM was defined as having a blood hemoglobin A1C level greater than or equal to 6.5% at follow-up. Arsenic exposure was characterized by drinking water samples collected from participants' tubewells. False discovery rates were applied in the analysis to control for multiple comparisons. RESULTS: Median arsenic levels in 2001-2003 were higher among diabetic participants compared with non-diabetic ones (71.6 microg/L vs. 12.5 microg/L, p-value <0.001). Three SNPs in ADAMTS9 were nominally associated with increased risk of T2DM (rs17070905, Odds Ratio (OR) = 2.30, 95% confidence interval (CI) 1.17-4.50; rs17070967, OR = 2.02, 95%CI 1.00-4.06; rs6766801, OR = 2.33, 95%CI 1.18-4.60), but these associations did not reach the statistical significance after adjusting for multiple comparisons. A significant interaction between arsenic and NOTCH2 (rs699780) was observed which significantly increased the risk of T2DM (p for interaction = 0.003; q-value = 0.021). Further restricted analysis among participants exposed to water arsenic of less than 148 microg/L showed consistent results for interaction between the NOTCH2 variant and arsenic exposure on T2DM (p for interaction = 0.048; q-value = 0.004). CONCLUSIONS: These findings suggest that genetic variation in NOTCH2 increased susceptibility to T2DM among people exposed to inorganic arsenic. Additionally, genetic variants in ADAMTS9 may increase the risk of T2DM. FAU - Pan, Wen-Chi AU - Pan WC AD - Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America. FAU - Kile, Molly L AU - Kile ML FAU - Seow, Wei Jie AU - Seow WJ FAU - Lin, Xihong AU - Lin X FAU - Quamruzzaman, Quazi AU - Quamruzzaman Q FAU - Rahman, Mahmuder AU - Rahman M FAU - Mahiuddin, Golam AU - Mahiuddin G FAU - Mostofa, Golam AU - Mostofa G FAU - Lu, Quan AU - Lu Q FAU - Christiani, David C AU - Christiani DC LA - eng GR - R01ES011622/ES/NIEHS NIH HHS/United States GR - P30 ES000002/ES/NIEHS NIH HHS/United States GR - P42ES016454/ES/NIEHS NIH HHS/United States GR - K01 ES017800/ES/NIEHS NIH HHS/United States GR - R01 ES022230/ES/NIEHS NIH HHS/United States GR - P30ES000002/ES/NIEHS NIH HHS/United States GR - P42 ES016454/ES/NIEHS NIH HHS/United States GR - R01ES022230/ES/NIEHS NIH HHS/United States GR - R01 ES011622/ES/NIEHS NIH HHS/United States GR - K01ES017800/ES/NIEHS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20130814 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Drinking Water) RN - 0 (Receptor, Notch2) RN - 0 (Water Pollutants, Chemical) RN - N712M78A8G (Arsenic) SB - IM MH - Adult MH - Arsenic/*toxicity MH - Diabetes Mellitus, Type 2/etiology/*genetics MH - Drinking Water/*chemistry MH - Environmental Exposure/adverse effects MH - Female MH - *Gene-Environment Interaction MH - Genetic Loci/*genetics MH - Genetic Predisposition to Disease/*genetics MH - Humans MH - Male MH - Polymorphism, Single Nucleotide MH - Receptor, Notch2/*genetics MH - Water Pollutants, Chemical/toxicity PMC - PMC3743824 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2013/08/24 06:00 MHDA- 2014/03/19 06:00 PMCR- 2013/08/14 CRDT- 2013/08/23 06:00 PHST- 2013/03/13 00:00 [received] PHST- 2013/06/24 00:00 [accepted] PHST- 2013/08/23 06:00 [entrez] PHST- 2013/08/24 06:00 [pubmed] PHST- 2014/03/19 06:00 [medline] PHST- 2013/08/14 00:00 [pmc-release] AID - PONE-D-13-10685 [pii] AID - 10.1371/journal.pone.0070792 [doi] PST - epublish SO - PLoS One. 2013 Aug 14;8(8):e70792. doi: 10.1371/journal.pone.0070792. eCollection 2013.