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Chang SC, Chang PY, Butler B, Goldstein BY, Mu L, Cai L, You NCY, Baecker A, Yu SZ, Heber D, Lu QY, Li L, Greenland S, Zhang ZF. Single nucleotide polymorphisms of one-carbon metabolism and cancers of the esophagus, stomach, and liver in a Chinese population. PLoS One 2014; 9:e109235. [PMID: 25337902 PMCID: PMC4206280 DOI: 10.1371/journal.pone.0109235] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 09/09/2014] [Indexed: 12/12/2022] Open
Abstract
One-carbon metabolism (folate metabolism) is considered important in carcinogenesis because of its involvement in DNA synthesis and biological methylation reactions. We investigated the associations of single nucleotide polymorphisms (SNPs) in folate metabolic pathway and the risk of three GI cancers in a population-based case-control study in Taixing City, China, with 218 esophageal cancer cases, 206 stomach cancer cases, 204 liver cancer cases, and 415 healthy population controls. Study participants were interviewed with a standardized questionnaire, and blood samples were collected after the interviews. We genotyped SNPs of the MTHFR, MTR, MTRR, DNMT1, and ALDH2 genes, using PCR-RFLP, SNPlex, or TaqMan assays. To account for multiple comparisons and reduce the chances of false reports, we employed semi-Bayes (SB) shrinkage analysis. After shrinkage and adjusting for potential confounding factors, we found positive associations between MTHFR rs1801133 and stomach cancer (any T versus C/C, SB odds-ratio [SBOR]: 1.79, 95% posterior limits: 1.18, 2.71) and liver cancer (SBOR: 1.51, 95% posterior limits: 0.98, 2.32). There was an inverse association between DNMT1 rs2228612 and esophageal cancer (any G versus A/A, SBOR: 0.60, 95% posterior limits: 0.39, 0.94). In addition, we detected potential heterogeneity across alcohol drinking status for ORs relating MTRR rs1801394 to esophageal (posterior homogeneity P = 0.005) and stomach cancer (posterior homogeneity P = 0.004), and ORs relating MTR rs1805087 to liver cancer (posterior homogeneity P = 0.021). Among non-alcohol drinkers, the variant allele (allele G) of these two SNPs was inversely associated with the risk of these cancers; while a positive association was observed among ever-alcohol drinkers. Our results suggest that genetic polymorphisms related to one-carbon metabolism may be associated with cancers of the esophagus, stomach, and liver. Heterogeneity across alcohol consumption status of the associations between MTR/MTRR polymorphisms and these cancers indicates potential interactions between alcohol drinking and one-carbon metabolic pathway.
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Affiliation(s)
- Shen-Chih Chang
- Department of Epidemiology, University of California Los Angeles Fielding School of Public Health, Los Angeles, CA, United States of America
| | - Po-Yin Chang
- Department of Epidemiology, University of California Los Angeles Fielding School of Public Health, Los Angeles, CA, United States of America
| | - Brendan Butler
- Department of Epidemiology, University of California Los Angeles Fielding School of Public Health, Los Angeles, CA, United States of America
| | - Binh Y. Goldstein
- Department of Epidemiology, University of California Los Angeles Fielding School of Public Health, Los Angeles, CA, United States of America
| | - Lina Mu
- Department of Social and Preventive Medicine, State University of New York at Buffalo, Buffalo, NY, United States of America
| | - Lin Cai
- Department of Epidemiology, Fujian Medical University, Fuzhou, Fujian, China
| | - Nai-Chieh Y. You
- Department of Epidemiology, University of California Los Angeles Fielding School of Public Health, Los Angeles, CA, United States of America
| | - Aileen Baecker
- Department of Epidemiology, University of California Los Angeles Fielding School of Public Health, Los Angeles, CA, United States of America
| | - Shun-Zhang Yu
- Department of Epidemiology, Fudan University School of Public Health, Shanghai, China
| | - David Heber
- Center for Human Nutrition, University of California Los Angeles David Geffen School of Medicine, Los Angeles, CA, United States of America
| | - Qing-Yi Lu
- Center for Human Nutrition, University of California Los Angeles David Geffen School of Medicine, Los Angeles, CA, United States of America
| | - Liming Li
- Department of Epidemiology, Peking University School of Public Health, Beijing, China
| | - Sander Greenland
- Department of Epidemiology, University of California Los Angeles Fielding School of Public Health, Los Angeles, CA, United States of America
- Department of Statistics, University of California Los Angeles College of Letters and Science, Los Angeles, CA, United States of America
| | - Zuo-Feng Zhang
- Department of Epidemiology, University of California Los Angeles Fielding School of Public Health, Los Angeles, CA, United States of America
- * E-mail:
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Song Y, You NCY, Song Y, Kang MK, Hou L, Wallace R, Eaton CB, Tinker LF, Liu S. Intake of small-to-medium-chain saturated fatty acids is associated with peripheral leukocyte telomere length in postmenopausal women. J Nutr 2013; 143:907-14. [PMID: 23616516 PMCID: PMC3652887 DOI: 10.3945/jn.113.175422] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Dietary factors, including dietary fat, may affect the biological aging process, as reflected by the shortening of telomere length (TL), by affecting levels of oxidative stress and inflammatory responses. We examined the direct relations of total and types of dietary fats and fat-rich foods to peripheral leukocyte TL. In 4029 apparently healthy postmenopausal women who participated in the Women's Health Initiative, intakes of total fat, individual fatty acids, and fat-rich foods were assessed by a questionnaire. TL was measured by quantitative polymerase chain reaction. Intake of short-to-medium-chain saturated fatty acids (SMSFAs; aliphatic tails of ≤ 12 carbons) was inversely associated with TL. Compared with participants in other quartiles of SMSFA intake, women who were in the highest quartile (median: 1.29% of energy) had shorter TLs [mean: 4.00 kb (95% CI: 3.89, 4.11 kb)], whereas women in the lowest quartile of intake (median: 0.29% of energy) had longer TLs [mean: 4.13 kb (95% CI: 4.03, 4.24 kb); P-trend = 0.046]. Except for lauric acid, all other individual SMSFAs were inversely associated with TL (P < 0.05). In isoenergetic substitution models, the substitution of 1% of energy from SMSFAs with any other energy source was associated with 119 bp longer TLs (95% CI: 21, 216 bp). Intakes of nonskim milk, butter, and whole-milk cheese (major sources of SMSFAs) were all inversely associated with TL. No significant associations were found with long-chain saturated fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids. In conclusion, we found that higher intakes of SMSFAs and SMSFA-rich foods were associated with shorter peripheral leukocyte TL among postmenopausal women. These findings suggest the potential roles of SMSFAs in the rate of biological aging.
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Affiliation(s)
- Yan Song
- Department of Epidemiology and Program on Genomics and Nutrition, Fielding School of Public Health,Center for Metabolic Disease Prevention
| | - Nai-Chieh Y. You
- Department of Epidemiology and Program on Genomics and Nutrition, Fielding School of Public Health,Center for Metabolic Disease Prevention
| | - Yiqing Song
- Division of Preventive Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Mo K. Kang
- Division of Associated Clinical Sciences, School of Dentistry, University of California, Los Angeles, Los Angeles, CA
| | - Lifang Hou
- Department of Preventive Medicine and Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Robert Wallace
- Department of Epidemiology, College of Public Health, The University of Iowa, Iowa City, IA
| | - Charles B. Eaton
- Departments of Epidemiology and,Family Medicine, Alpert Medical School, Brown University, Providence, RI,Center for Primary Care and Prevention, Memorial Hospital of Rhode Island, Pawtucket, RI; and
| | | | - Simin Liu
- Department of Epidemiology and Program on Genomics and Nutrition, Fielding School of Public Health,Center for Metabolic Disease Prevention,Department of Obstetrics and Gynecology, David Geffen School of Medicine, and,Departments of Epidemiology and,To whom correspondence should be addressed. E-mail:
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Li Y, Chang SC, Goldstein BY, Scheider WL, Cai L, You NCY, Tarleton HP, Ding B, Zhao J, Wu M, Jiang Q, Yu S, Rao J, Lu QY, Zhang ZF, Mu L. Green tea consumption, inflammation and the risk of primary hepatocellular carcinoma in a Chinese population. Cancer Epidemiol 2011; 35:362-8. [PMID: 21315679 PMCID: PMC3396119 DOI: 10.1016/j.canep.2011.01.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 12/27/2010] [Accepted: 01/11/2011] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Green tea has been found to possess anti-inflammatory, anti-oxidative and anti-carcinogenic properties. The present study examines the association between green tea drinking and hepatocellular carcinoma (HCC) and its interactions with other risk or protective factors and single nucleotide polymorphisms (SNP) of inflammation and oxidative stress related genes. METHODS A population-based case-control study with 204 primary HCC cases and 415 healthy controls was conducted in Taixing, China. Epidemiological data were collected using a standard questionnaire. SNPs of genes of the inflammation and metabolic pathways were genotyped at the UCLA Molecular Epidemiology Laboratory. Logistic regression was performed to estimate adjusted odds ratios and 95% confidence intervals. RESULTS Longer duration and larger quantities of green tea consumption were inversely associated with primary HCC. Individuals who drank green tea longer than 30 years were at lowest risk (adjusted OR=0.44, 95% CI: 0.19-0.96) compared with non-drinkers. A strong interaction was observed between green tea drinking and alcohol consumption (adjusted OR for interaction=3.40, 95% CI: 1.26-9.16). Green tea drinking was also observed to have a potential effect modification on HBV/HCV infection, smoking and polymorphisms of inflammation related cytokines, especially for IL-10. CONCLUSION Green tea consumption may protect against development of primary HCC. Potential effect modifications of green tea on associations between primary HCC and alcohol drinking, HBV/HCV infection, and inflammation-related SNPs were suggested.
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Affiliation(s)
- Yanli Li
- Department of Social and Preventive Medicine, The State University of New York (SUNY) at Buffalo, NY, USA
| | - Shen-Chih Chang
- Department of Epidemiology, School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Binh Y. Goldstein
- Department of Epidemiology, School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - William L. Scheider
- Department of Social and Preventive Medicine, The State University of New York (SUNY) at Buffalo, NY, USA
| | - Lin Cai
- Department of Epidemiology, School of Public Health, Fujian Medical University, Fuzhou, Fijian, China
| | - Nai-Chieh Y. You
- Department of Epidemiology, School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Heather P. Tarleton
- Department of Epidemiology, School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Baoguo Ding
- Taixing City Center for Disease Control and Prevention (CDC), Taixing City, Jiangsu, China
| | - Jinkou Zhao
- Jiangsu Center for Disease Control and Prevention (CDC), Nanjing, Jiangsu, China
| | - Ming Wu
- Jiangsu Center for Disease Control and Prevention (CDC), Nanjing, Jiangsu, China
| | - Qingwu Jiang
- Fudan University School of Public Health, Shanghai, China
| | - Shunzhang Yu
- Fudan University School of Public Health, Shanghai, China
| | - Jianyu Rao
- Department of Pathology and Lab Med, School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Qing-Yi Lu
- Center for Human Nutrition, School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Zuo-Feng Zhang
- Department of Epidemiology, School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
| | - Lina Mu
- Department of Social and Preventive Medicine, The State University of New York (SUNY) at Buffalo, NY, USA
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Hussain SK, Mu LN, Cai L, Chang SC, Park SL, Oh SS, Wang Y, Goldstein BY, Ding BG, Jiang Q, Rao J, You NCY, Yu SZ, Papp JC, Zhao JK, Wang H, Zhang ZF. Genetic variation in immune regulation and DNA repair pathways and stomach cancer in China. Cancer Epidemiol Biomarkers Prev 2009; 18:2304-9. [PMID: 19661089 PMCID: PMC2725326 DOI: 10.1158/1055-9965.epi-09-0233] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The incidence of stomach cancer is high in certain parts of the world, particularly in China. Chronic Helicobacter pylori infection is the main risk factor, yet the vast majority of infected individuals remain unaffected with cancer, suggesting an important role of other risk factors. We conducted a population-based case-control study including 196 incident stomach cancer cases and 397 matched controls to test the hypothesis that adverse single nucleotide polymorphism (SNP) genotypes and haplotypes within genes of the DNA repair and immune regulatory pathways are associated with increased stomach cancer risk. Genomic DNA isolated from blood samples was used for genotyping, and results were obtained for 57 putatively functional SNPs in 28 genes. Odds ratios (OR) and 95% confidence intervals (95% CI) were obtained from adjusted logistic regression models. For PTGS2, a gene involved in the inflammatory response, associations with stomach cancer risk were observed for TC genotype carriers of rs5279 (OR, 0.24; 95% CI, 0.08-0.73), CT genotype carriers of the 3'-untranslated region SNP rs689470 (OR, 7.49; 95% CI, 1.21-46.20), and CTTC haplotype carriers of rs5277, rs5278, rs5279, and rs689470 (OR, 0.41; 95% CI, 0.18-0.95). For ERCC5, a gene involved in nucleotide excision repair, TC genotype carriers of rs1047768 (OR, 0.65; 95% CI, 0.41-1.03), GC genotype carriers of the nonsynonymous SNP rs2227869 (OR, 0.30; 95% CI, 0.13-0.67), and CCG haplotype carriers of rs1047768, rs17655, and rs2227869 (OR, 0.45; 95% CI, 0.20-1.04) were associated with reduced stomach cancer risk. In conclusion, PTGS2 and ERCC5 were associated with stomach cancer risk in a Chinese population.
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Affiliation(s)
- Shehnaz K. Hussain
- Department of Epidemiology, University of California, Los Angeles (UCLA) School of Public Health, Los Angeles, CA, USA
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA USA
| | - Li-Na Mu
- Department of Social and Preventive Medicine, State University of New York (SUNY) at Buffalo, NY, USA
| | - Lin Cai
- Department of Epidemiology, School of Public Health, Fujian Medical University, Fuzhou, China
| | - Shen-Chih Chang
- Department of Epidemiology, University of California, Los Angeles (UCLA) School of Public Health, Los Angeles, CA, USA
| | - Sungshim Lani Park
- Department of Epidemiology, University of California, Los Angeles (UCLA) School of Public Health, Los Angeles, CA, USA
| | - Sam S. Oh
- Department of Epidemiology, University of California, Los Angeles (UCLA) School of Public Health, Los Angeles, CA, USA
| | - Yiren Wang
- Department of Epidemiology, University of California, Los Angeles (UCLA) School of Public Health, Los Angeles, CA, USA
| | - Binh Y. Goldstein
- Department of Epidemiology, University of California, Los Angeles (UCLA) School of Public Health, Los Angeles, CA, USA
| | - Bao-Guo Ding
- Taixing City Center for Disease Prevention and Control (CDC), Taixing City, Jiangsu, China
| | - Qingwu Jiang
- Fudan University School of Public Health, Shanghai, China
| | - Jianyu Rao
- Department of Epidemiology, University of California, Los Angeles (UCLA) School of Public Health, Los Angeles, CA, USA
- Departments of Pathology and Laboratory Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
| | - Nai-Chieh Y. You
- Department of Epidemiology, University of California, Los Angeles (UCLA) School of Public Health, Los Angeles, CA, USA
| | - Shun-Zhang Yu
- Fudan University School of Public Health, Shanghai, China
| | | | | | - Hua Wang
- Jiangsu Provincial CDC, Nanjing, China
| | - Zuo-Feng Zhang
- Department of Epidemiology, University of California, Los Angeles (UCLA) School of Public Health, Los Angeles, CA, USA
- Fudan University School of Public Health, Shanghai, China
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