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. 2001 Jan;92(1):9–15. doi: 10.1111/j.1349-7006.2001.tb01041.x

Life Style and Urinary 8‐Hydroxydeoxyguanosine, a Marker of Oxidative DNA Damage: Effects of Exercise, Working Conditions, Meat Intake, Body Mass Index, and Smoking

Hiroshi Kasai 1,✉, Naoko Iwamoto‐Tanaka 1, Toshiaki Miyamoto 2, Kiyoshi Kawanami 2, Shoko Kawanami 3, Rie Kido 1, Masato Ikeda 4
PMCID: PMC5926588  PMID: 11173538

Abstract

The urinary levels of 8‐hydroxydeoxyguanosine (8‐OH‐dG), a marker of oxidative DNA damage, of 318 healthy men aged 18‐58 were measured with high resolution by a newly developed automated high‐pressure liquid chromatography (HPLC) system coupled to an electrochemical detector (ECD). The mean 8‐OH‐dG level (μMg/g creatinine) was 4.12±1.73 (SD). An eleven‐fold inter‐individual variation was observed. The accuracy of the measurement estimated from the recovery of an added 8‐OH‐dG standard was 90‐98%. By univariate analysis, it was found that moderate physical exercise (P=0.0023) and high body mass index (BMI) (P=0.0032) reduced the 8‐OH‐dG level, while physical labor (P=0.0097), smoking (P=0.032), and low meat intake (less than once/ week) (P=0.041) increased its level. Based on a multi‐regression analysis of the log‐transformed values, moderate physical exercise (P=0.0039), high BMI (P=0.0099), and age (P=0.021) showed significant reducing effects on the 8‐OH‐dG level, while low meat intake (P=0.010), smoking (P=0.013), and day‐night shift work (P=0.044) increased its level. These results suggest that many types of life‐style factors that either generate or scavenge oxygen radicals may affect the level of oxidative DNA damage of each individual.

Keywords: 8‐Hydroxydeoxyguanosine, Exercise, Meat intake, BMI, Smoking

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