PMID- 29429538 OWN - NLM STAT- MEDLINE DCOM- 20191004 LR - 20191210 IS - 1873-1244 (Electronic) IS - 0899-9007 (Linking) VI - 47 DP - 2018 Mar TI - Dietary non-enzymatic antioxidant capacity and DNA damage in a working population. PG - 63-68 LID - S0899-9007(17)30221-6 [pii] LID - 10.1016/j.nut.2017.10.004 [doi] AB - OBJECTIVE: The aim of this study was to investigate the potential links between dietary non-enzymatic antioxidant capacity (NEAC) in overall diet and separately from foods and beverages and markers of DNA damage. METHODS: The participants were 513 employees, 20 to 65 y of age. Urinary levels of 8-hydroxydeoxyguanosine (8-OHdG) and 7-methylguanine (m(7) Gua) were measured using column-switching high-performance liquid chromatography. Dietary NEAC was determined from databases of NEAC measurements obtained by different assays: ferric reducing-antioxidant power (FRAP), oxygen radical absorbance capacity (ORAC), and total radical-trapping antioxidant parameter (TRAP). Dietary NEAC for each participant was calculated by multiplying the estimated NEAC values with the consumed amount and summing up those values, which was ascertained by a validated brief self-administered diet history questionnaire. Multiple-regression analyses were performed to assess the associations between dietary NEAC and 8-OHdG and m(7) Gua, with adjustment for potential confounders. RESULTS: No statistically significant associations were found between overall dietary NEAC or NEAC from either foods or beverages and urinary 8-OHdG levels, after adjustment for potential confounders (overall: FRAP, P(trend) = 0.40; ORAC, P = 0.27; TRAP, P = 0.45). Likewise, no association was found between overall dietary NEAC and m(7) Gua levels (FRAP, P(trend) = 0.30; ORAC, P = 0.65; TRAP, P = 0.41). However, we did identify significant inverse association between NEAC from foods, as estimated by TRAP, and m(7) Gua levels (P(trend) = 0.049). CONCLUSION: Overall, dietary NEAC was not associated with 8-OHdG or m(7) Gua levels. In contrast, dietary NEAC from foods but not beverages may be inversely associated with DNA damage caused by methylation. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Kashino, Ikuko AU - Kashino I AD - Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan. Electronic address: Ikukokashino@gmail.com. FAU - Li, Yun-Shan AU - Li YS AD - Department of Environmental Oncology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Fukuoka, Japan. FAU - Kawai, Kazuaki AU - Kawai K AD - Department of Environmental Oncology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Fukuoka, Japan. FAU - Nanri, Akiko AU - Nanri A AD - Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan. FAU - Miki, Takako AU - Miki T AD - Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan. FAU - Akter, Shamima AU - Akter S AD - Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan. FAU - Kobayashi, Satomi AU - Kobayashi S AD - Department of Social and Preventive Epidemiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan. FAU - Kasai, Hiroshi AU - Kasai H AD - Department of Environmental Oncology, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Fukuoka, Japan. FAU - Mizoue, Tetsuya AU - Mizoue T AD - Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180104 PL - United States TA - Nutrition JT - Nutrition (Burbank, Los Angeles County, Calif.) JID - 8802712 RN - 0 (Antioxidants) RN - 5Z93L87A1R (Guanine) RN - 661J4K04NB (7-methylguanine) RN - 88847-89-6 (8-Hydroxy-2'-Deoxyguanosine) RN - G9481N71RO (Deoxyguanosine) SB - IM MH - 8-Hydroxy-2'-Deoxyguanosine MH - Adult MH - Aged MH - Antioxidants/*analysis MH - *DNA Damage MH - Deoxyguanosine/analogs & derivatives/urine MH - Diet/*statistics & numerical data MH - Female MH - Guanine/analogs & derivatives/urine MH - Humans MH - Male MH - Middle Aged MH - Oxygen Radical Absorbance Capacity MH - Risk Factors MH - Young Adult OTO - NOTNLM OT - Antioxidant OT - Asia OT - Cancer OT - Diet OT - Epidemiology OT - NEAC OT - TAC EDAT- 2018/02/13 06:00 MHDA- 2019/10/08 06:00 CRDT- 2018/02/13 06:00 PHST- 2017/06/15 00:00 [received] PHST- 2017/09/21 00:00 [revised] PHST- 2017/10/05 00:00 [accepted] PHST- 2018/02/13 06:00 [entrez] PHST- 2018/02/13 06:00 [pubmed] PHST- 2019/10/08 06:00 [medline] AID - S0899-9007(17)30221-6 [pii] AID - 10.1016/j.nut.2017.10.004 [doi] PST - ppublish SO - Nutrition. 2018 Mar;47:63-68. doi: 10.1016/j.nut.2017.10.004. Epub 2018 Jan 4.