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Luo YJ, Wen XZ, Ding P, He YH, Xie CB, Liu T, Lin JM, Yuan SX, Guo XL, Jia DQ, Chen LH, Huang BZ, Chen WQ. Interaction between maternal passive smoking during pregnancy and CYP1A1 and GSTs polymorphisms on spontaneous preterm delivery. PLoS One 2012; 7:e49155. [PMID: 23152866 PMCID: PMC3496734 DOI: 10.1371/journal.pone.0049155] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 10/04/2012] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE The present study aimed to examine the association between maternal passive smoking during pregnancy and the risk of spontaneous PTD and to explore the potential interaction of the single or joint gene polymorphism of CYP1A1 and GSTs with maternal passive smoking on the risk of spontaneous PTD. METHOD We investigated whether the association between maternal passive smoking and PTD can be modified by 2 metabolic genes, i.e. cytochrome P4501A1 (CYP1A1) and glutathione S-transferases (GSTs), in a case-control study with 198 spontaneous preterm and 524 term deliveries in Shenzhen and Foshan, China. We used logistic regression to test gene-passive smoking interaction, adjusting for maternal socio-demographics and prepregnancy body mass index. RESULTS Overall, maternal passive smoking during pregnancy was associated with higher risk of PTD (adjusted odds ratio = 2.20 [95% confidence interval: 1.56-3.12]). This association was modified by CYP1A1 and GSTs together, but not by any single genotype. For cross-categories of CYP1A1 Msp I and GSTs, maternal passive smoking was associated with higher risk of PTD among those women with CYP1A1 "TC/CC"+ GSTs "null", but not among women with other genotypes; and this interaction was significant (OR = 2.66 [95% CI: 1.19-5.97]; P-value: 0.017). For cross-categories of CYP1A1 BsrD I and GSTs, maternal passive smoking was associated with higher risk of PTD only among those women with CYP1A1"AG/GG"+ GSTs "null", but not among women with other genotypes; and this interaction was significant (OR = 3.00 [95% CI: 1.17-7.74]; P-value: 0.023). CONCLUSIONS Our findings suggest that the combined genotypes of CYP1A1 and GSTs can help to identify vulnerable pregnant women who are subject to high risk of spontaneous PTD due to passive smoking.
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Affiliation(s)
- Yi-Juan Luo
- Department of Biostatistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiao-Zhong Wen
- Obesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, United States of America
| | - Peng Ding
- Department of Biostatistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Yan-Hui He
- Department of Biostatistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Chuan-Bo Xie
- Department of Biostatistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Tao Liu
- Department of Biostatistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jian-miao Lin
- Shenzhen Women and Children’s Hospital, Shenzhen, Guangdong, China
| | - Shi-Xin Yuan
- Shenzhen Women and Children’s Hospital, Shenzhen, Guangdong, China
| | - Xiao-Ling Guo
- Foshan Women and Children’s Hospital, Foshan, Guangdong, China
| | - De-Qin Jia
- Foshan Women and Children’s Hospital, Foshan, Guangdong, China
| | - Li-Hua Chen
- Shenzhen Women and Children’s Hospital, Shenzhen, Guangdong, China
| | - Bao-Zhen Huang
- Shenzhen Women and Children’s Hospital, Shenzhen, Guangdong, China
| | - Wei-Qing Chen
- Department of Biostatistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
- * E-mail:
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