Positive association between urinary levels of 8-hydroxydeoxyguanosine and the acrylamide metabolite N-acetyl-S-(propionamide)-cysteine in adolescents and young adults

J Hazard Mater. 2013 Oct 15;261:372-7. doi: 10.1016/j.jhazmat.2013.06.069. Epub 2013 Jul 30.

Abstract

Acrylamide is present in mainstream cigarette smoke and in some foods prepared at high temperatures. Animal studies have shown that acrylamide exposure increases oxidative stress; however, it is not known if this also occurs in humans. We recruited 800 subjects (mean age, 21.3 years, range, 12-30 years) from a population-based sample of Taiwanese adolescents and young adults to determine if urinary levels of the acrylamide metabolite N-acetyl-S-(propionamide)-cysteine (AAMA) and the oxidative stress product 8-hydroxydeoxyguanosine (8-OHdG) are associated. The mean (SD) AAMA and 8-OHdG were 76.54 (76.42)μg/L and 3.48 (2.37)μg/L, respectively. In linear regression analyses, a 1-unit increase in natural log AAMA was significantly associated with an increase in natural log 8-OHdG (μg/g creatinine) (β=0.044, SE=0.019, P=0.020) after controlling for covariates. Subpopulation analyses showed AAMA and 8-OHdG were significantly associated with males, adolescents, non-current smokers, without alcohol consumption, subjects, body mass index ≥ 24, and homeostasis model assessment of insulin resistance score ≥ 0.9. In conclusion, higher urinary AAMA concentrations were associated with increased levels of urinary 8-OHdG in this cohort. Further studies are warranted to determine if there is a causal relationship between acrylamide exposure and oxidative stress.

Keywords: 8-Hydroxydeoxyguanosine (8-OHdG); 8-OHdG; 8-hydroxydeoxyguanosine; AAMA; Acrylamide; BMI; HDL-C; HOMA-IR; LDL-C; LOD; N-Acetyl-S-(propionamide)-cysteine (AAMA); N-acetyl-S-(2-carbamoylethyl)-cysteine; NTD; NTUH; National Taiwan University Hospital; New Taiwan Dollars; Oxidative stress; ROS; The homeostasis model assessment of insulin resistance; body mass index; high-density lipoprotein cholesterol; limit of detection; low lipoprotein cholesterol; reactive oxygen species.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 8-Hydroxy-2'-Deoxyguanosine
  • Acetylcysteine / analogs & derivatives*
  • Acetylcysteine / urine
  • Acrylamide / metabolism
  • Adolescent
  • Adult
  • Child
  • Deoxyguanosine / analogs & derivatives*
  • Deoxyguanosine / urine
  • Environmental Monitoring
  • Female
  • Humans
  • Male
  • Taiwan
  • Young Adult

Substances

  • N-acetyl-S-(2-carbamoylethyl)cysteine
  • Acrylamide
  • N-acetyl-S-(propionamide)cysteine
  • 8-Hydroxy-2'-Deoxyguanosine
  • Deoxyguanosine
  • Acetylcysteine