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Alcohol influence on acrylamide to glycidamide metabolism assessed with hemoglobin-adducts and questionnaire data.

https://arctichealth.org/en/permalink/ahliterature98517
Source
Food Chem Toxicol. 2010 Mar;48(3):820-4
Publication Type
Article
Date
Mar-2010
Author
Anna C Vikström
Kathryn M Wilson
Birgit Paulsson
Ioannis Athanassiadis
Henrik Grönberg
Hans-Olov Adami
Jan Adolfsson
Lorelei A Mucci
Katarina Bälter
Margareta Törnqvist
Author Affiliation
Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden. anna.vikstrom@mk.su.se
Source
Food Chem Toxicol. 2010 Mar;48(3):820-4
Date
Mar-2010
Language
English
Publication Type
Article
Keywords
Acrylamides - metabolism
Adult
Alcohol Drinking - metabolism
Case-Control Studies
Central Nervous System Depressants - pharmacology
Epoxy Compounds - metabolism
Ethanol - pharmacology
Food Habits
Hemoglobins - metabolism
Humans
Male
Prostatic Neoplasms - epidemiology
Questionnaires
Smoking - adverse effects
Sweden - epidemiology
Abstract
Our purpose was to investigate whether alcohol (ethanol) consumption could have an influence on the metabolism of acrylamide to glycidamide in humans exposed to acrylamide through food. We studied a subsample from a population-based case-control study of prostate cancer in Sweden (CAPS). Questionnaire data for alcohol intake estimates was compared to the ratio of hemoglobin-adduct levels for acrylamide and glycidamide, used as a measure of individual differences in metabolism. Data from 161 non-smoking men were processed with regard to the influence of alcohol on the metabolism of acrylamide to glycidamide. A negative, linear trend of glycidamide-adduct to acrylamide-adduct-level ratios with increasing alcohol intake was observed and the strongest association (p-value for trend=0.02) was obtained in the group of men with the lowest adduct levels (47 pmol/g globin) when alcohol intake was stratified by acrylamide-adduct levels. The observed trend is likely due to a competitive effect between ethanol and acrylamide as both are substrates for cytochrome P450 2E1. Our results, strongly indicating that ethanol influence metabolism of acrylamide to glycidamide, partly explain earlier observations of only low to moderate associations between questionnaire data on dietary acrylamide intake and hemoglobin-adduct levels.
PubMed ID
20034532 View in PubMed
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Analysis of hemoglobin adducts from acrylamide, glycidamide, and ethylene oxide in paired mother/cord blood samples from Denmark.

https://arctichealth.org/en/permalink/ahliterature131736
Source
Chem Res Toxicol. 2011 Nov 21;24(11):1957-65
Publication Type
Article
Date
Nov-21-2011
Author
Hans von Stedingk
Anna C Vikström
Per Rydberg
Marie Pedersen
Jeanette K S Nielsen
Dan Segerbäck
Lisbeth E Knudsen
Margareta Törnqvist
Author Affiliation
Department of Materials and Environmental Chemistry, Environmental Chemistry Unit, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden.
Source
Chem Res Toxicol. 2011 Nov 21;24(11):1957-65
Date
Nov-21-2011
Language
English
Publication Type
Article
Keywords
Acrylamide - blood
Adult
Case-Control Studies
Chromatography, Liquid
Denmark
Epoxy Compounds - blood
Ethylene Oxide - blood
Female
Fetal Blood - chemistry
Fetus
Hemoglobins - metabolism
Humans
Mass Spectrometry
Maternal Exposure
Placenta - physiology
Pregnancy
Smoking - adverse effects - blood
Abstract
The knowledge about fetal exposure to acrylamide/glycidamide from the maternal exposure through food is limited. Acrylamide, glycidamide, and ethylene oxide are electrophiles and form adducts with hemoglobin (Hb), which could be used for in vivo dose measurement. In this study, a method for analysis of Hb adducts by liquid chromatography-mass spectrometry, the adduct FIRE procedure, was applied to measurements of adducts from these compounds in maternal blood samples (n = 87) and umbilical cord blood samples (n = 219). The adduct levels from the three compounds, acrylamide, glycidamide, and ethylene oxide, were increased in tobacco smokers. Highly significant correlations were found between cord and maternal blood with regard to measured adduct levels of the three compounds. The mean cord/maternal hemoglobin adduct level ratios were 0.48 (range 0.27-0.86) for acrylamide, 0.38 (range 0.20-0.73) for glycidamide, and 0.43 (range 0.17-1.34) for ethylene oxide. In vitro studies with acrylamide and glycidamide showed a lower (0.38-0.48) rate of adduct formation with Hb in cord blood than with Hb in maternal blood, which is compatible with the structural differences in fetal and adult Hb. Together, these results indicate a similar life span of fetal and maternal erythrocytes. The results showed that the in vivo dose in fetal and maternal blood is about the same and that the placenta gives negligible protection of the fetus to exposure from the investigated compounds. A trend of higher levels of the measured adducts in cord blood with gestational age was observed, which may reflect the gestational age-related change of the cord blood Hb composition toward a higher content of adult Hb. The results suggest that the Hb adduct levels measured in cord blood reflect the exposure to the fetus during the third trimester. The evaluation of the new analytical method showed that it is suitable for monitoring of background exposures of the investigated electrophilic compounds in large population studies.
PubMed ID
21882862 View in PubMed
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Cancer risk assessment, indicators, and guidelines for polycyclic aromatic hydrocarbons in the ambient air.

https://arctichealth.org/en/permalink/ahliterature19093
Source
Environ Health Perspect. 2002 Jun;110 Suppl 3:451-88
Publication Type
Article
Date
Jun-2002
Author
Carl-Elis Boström
Per Gerde
Annika Hanberg
Bengt Jernström
Christer Johansson
Titus Kyrklund
Agneta Rannug
Margareta Törnqvist
Katarina Victorin
Roger Westerholm
Author Affiliation
Swedish Environmental Protection Agency, Stockholm, Sweden.
Source
Environ Health Perspect. 2002 Jun;110 Suppl 3:451-88
Date
Jun-2002
Language
English
Publication Type
Article
Keywords
Air Pollutants, Environmental - adverse effects
Cell Transformation, Neoplastic
Environmental Exposure
Environmental monitoring
Guidelines
Humans
Neoplasms - etiology
Polycyclic Hydrocarbons, Aromatic - adverse effects
Public Health
Research Support, Non-U.S. Gov't
Risk assessment
Tumor Markers, Biological - analysis
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are formed during incomplete combustion. Domestic wood burning and road traffic are the major sources of PAHs in Sweden. In Stockholm, the sum of 14 different PAHs is 100-200 ng/m(3) at the street-level site, the most abundant being phenanthrene. Benzo[a]pyrene (B[a]P) varies between 1 and 2 ng/m(3). Exposure to PAH-containing substances increases the risk of cancer in humans. The carcinogenicity of PAHs is associated with the complexity of the molecule, i.e., increasing number of benzenoid rings, and with metabolic activation to reactive diol epoxide intermediates and their subsequent covalent binding to critical targets in DNA. B[a]P is the main indicator of carcinogenic PAHs. Fluoranthene is an important volatile PAH because it occurs at high concentrations in ambient air and because it is an experimental carcinogen in certain test systems. Thus, fluoranthene is suggested as a complementary indicator to B[a]P. The most carcinogenic PAH identified, dibenzo[a,l]pyrene, is also suggested as an indicator, although it occurs at very low concentrations. Quantitative cancer risk estimates of PAHs as air pollutants are very uncertain because of the lack of useful, good-quality data. According to the World Health Organization Air Quality Guidelines for Europe, the unit risk is 9 X 10(-5) per ng/m(3) of B[a]P as indicator of the total PAH content, namely, lifetime exposure to 0.1 ng/m(3) would theoretically lead to one extra cancer case in 100,000 exposed individuals. This concentration of 0.1 ng/m(3) of B[a]P is suggested as a health-based guideline. Because the carcinogenic potency of fluoranthene has been estimated to be approximately 20 times less than that of B[a]P, a tentative guideline value of 2 ng/m(3) is suggested for fluoranthene. Other significant PAHs are phenanthrene, methylated phenanthrenes/anthracenes and pyrene (high air concentrations), and large-molecule PAHs such as dibenz[a,h]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, and indeno[1,2,3-cd]pyrene (high carcinogenicity). Additional source-specific indicators are benzo[ghi]perylene for gasoline vehicles, retene for wood combustion, and dibenzothiophene and benzonaphthothiophene for sulfur-containing fuels.
PubMed ID
12060843 View in PubMed
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Dietary acrylamide intake during pregnancy and fetal growth-results from the Norwegian mother and child cohort study (MoBa).

https://arctichealth.org/en/permalink/ahliterature118477
Source
Environ Health Perspect. 2013 Mar;121(3):374-9
Publication Type
Article
Date
Mar-2013
Author
Talita Duarte-Salles
Hans von Stedingk
Berit Granum
Kristine B Gützkow
Per Rydberg
Margareta Törnqvist
Michelle A Mendez
Gunnar Brunborg
Anne Lise Brantsæter
Helle Margrete Meltzer
Jan Alexander
Margaretha Haugen
Author Affiliation
Division of Environmental Medicine, Norwegian Institute of Public Health, Oslo, Norway.
Source
Environ Health Perspect. 2013 Mar;121(3):374-9
Date
Mar-2013
Language
English
Publication Type
Article
Keywords
Acrylamide - administration & dosage - pharmacology
Cohort Studies
Diet
Environmental Exposure
Female
Fetal Development - drug effects
Hemoglobins - chemistry
Humans
Norway
Pregnancy
Questionnaires
Abstract
Acrylamide has shown developmental and reproductive toxicity in animals, as well as neurotoxic effects in humans with occupational exposures. Because it is widespread in food and can pass through the human placenta, concerns have been raised about potential developmental effects of dietary exposures in humans.
We assessed associations of prenatal exposure to dietary acrylamide with small for gestational age (SGA) and birth weight.
This study included 50,651 women in the Norwegian Mother and Child Cohort Study (MoBa). Acrylamide exposure assessment was based on intake estimates obtained from a food frequency questionnaire (FFQ), which were compared with hemoglobin (Hb) adduct measurements reflecting acrylamide exposure in a subset of samples (n = 79). Data on infant birth weight and gestational age were obtained from the Medical Birth Registry of Norway. Multivariable regression was used to estimate associations between prenatal acrylamide and birth outcomes.
Acrylamide intake during pregnancy was negatively associated with fetal growth. When women in the highest quartile of acrylamide intake were compared with women in the lowest quartile, the multivariable-adjusted odds ratio (OR) for SGA was 1.11 (95% CI: 1.02, 1.21) and the coefficient for birth weight was -25.7 g (95% CI: -35.9, -15.4). Results were similar after excluding mothers who smoked during pregnancy. Maternal acrylamide- and glycidamide-Hb adduct levels were correlated with estimated dietary acrylamide intakes (Spearman correlations = 0.24; 95% CI: 0.02, 0.44; and 0.48; 95% CI: 0.29, 0.63, respectively).
Lowering dietary acrylamide intake during pregnancy may improve fetal growth.
Notes
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PubMed ID
23204292 View in PubMed
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Differences in micronucleus frequency and acrylamide adduct levels with hemoglobin between vegetarians and non-vegetarians.

https://arctichealth.org/en/permalink/ahliterature273950
Source
Eur J Nutr. 2015 Oct;54(7):1181-90
Publication Type
Article
Date
Oct-2015
Author
Natalia Kotova
Cecilia Frostne
Lilianne Abramsson-Zetterberg
Eden Tareke
Rolf Bergman
Siamak Haghdoost
Birgit Paulsson
Margareta Törnqvist
Dan Segerbäck
Dag Jenssen
Jan Grawé
Source
Eur J Nutr. 2015 Oct;54(7):1181-90
Date
Oct-2015
Language
English
Publication Type
Article
Keywords
Acrylamide - blood
Adult
Body mass index
DNA Damage - drug effects
Diet, Vegetarian
Epoxy Compounds - blood
Erythrocytes - drug effects - metabolism
Female
Folic Acid - blood
Food Habits
Genomic Instability
Hemoglobins - metabolism
Humans
Life Style
Linear Models
Male
Micronucleus Tests
Motor Activity
Sensitivity and specificity
Sweden
Transferrin - metabolism
Vegetarians
Vitamin B 12 - blood
Young Adult
Abstract
Nutrients and food constituents can prevent or contribute to genotoxicity. In this study, the possible influence of a vegetarian/non-vegetarian diet on genotoxic effects was investigated in 58 non-smoking healthy vegetarians (V) and non-vegetarians (NV), age 21-37 years from the Stockholm area in Sweden.
Physical activity and dietary habits were similar in both groups, with the exception of the intake of meat and fish. Using flow cytometry, we determined the formation of micronuclei (MN) in transferrin-positive immature peripheral blood reticulocytes (Trf-Ret) (Total: n = 53; V: n = 27; NV: n = 26). Dietary exposure to acrylamide was measured through hemoglobin (Hb) adducts in peripheral erythrocytes (Total: n = 53; V: n = 29; NV: n = 24). Hb adducts of both acrylamide and its genotoxic metabolite glycidamide were monitored as a measure of the corresponding in vivo doses.
Our data demonstrated that compared with the non-vegetarians, the vegetarians exhibited lower frequencies of MN (fMN) in the Trf-Ret (p
PubMed ID
25399061 View in PubMed
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Effects on the peripheral nervous system of tunnel workers exposed to acrylamide and N-methylolacrylamide.

https://arctichealth.org/en/permalink/ahliterature67258
Source
Scand J Work Environ Health. 2004 Feb;30(1):21-9
Publication Type
Article
Date
Feb-2004
Author
Helge Kjuus
Lars Ole Goffeng
Mona Skard Heier
Hans Sjöholm
Steinar Ovrebø
Vidar Skaug
Birgit Paulsson
Margareta Törnqvist
Stein Brudal
Author Affiliation
Department of Occupational Medicine, National Institute of Occupational Health, Oslo, Norway. Helge.Kjuus@stami.no
Source
Scand J Work Environ Health. 2004 Feb;30(1):21-9
Date
Feb-2004
Language
English
Publication Type
Article
Keywords
Acrylamide - blood - toxicity
Acrylamides - blood - toxicity
Adult
Comparative Study
Construction Materials - toxicity
Follow-Up Studies
Hemoglobins - chemistry
Humans
Middle Aged
Neural Conduction - drug effects - physiology
Occupational Exposure - adverse effects - analysis
Occupational Health
Paresthesia - chemically induced - physiopathology
Peripheral Nervous System - drug effects - physiopathology
Railroads - manpower
Research Support, Non-U.S. Gov't
Smoking
Sweden
Abstract
OBJECTIVES: This study evaluates the possible toxic effects on the peripheral nervous system of tunnel workers exposed to acrylamide and N-methylolacrylamide during grouting work. METHODS: Symptoms and nerve conduction velocities (NCV) were recorded for 24 tunnel workers 4 and 16 months after the cessation of exposure during grouting operations. Fifty tunnel workers not involved in grouting operations served as referents. Exposure was assessed by questionnaires, qualitative exposure indices, and measurements of hemoglobin adducts after the cessation of exposure. RESULTS:The exposed workers reported a higher prevalence of symptoms during grouting work than they did in an examination 16 months later. A statistically significant reduction in the mean sensory NCV of the ulnar nerve was observed 4 months postexposure when compared with the values of the reference group (52.3 versus 58.9 m/s, P = 0.001), and the mean ulnar distal delay was prolonged (3.1 versus 2.5 ms, P = 0.001). Both measures were significantly improved when measured 1 year later. Exposure-related improvements were observed from 4 to 16 months postexposure for both the median (motor and sensory NCV and F-response) and ulnar (sensory NCV, F-response) nerves. A significant reversible reduction in the mean sensory amplitude of the median nerve was also observed, while the mean sensory amplitude of the sural nerve was significantly reduced after 16 months. CONCLUSIONS: The results indicate demyelinating and axonal changes in peripheral nerves of tunnel workers in relation to exposure to N-methylolacrylamide and acrylamide during grouting operations. The changes were slight, mostly subclinical, and most of the effects were reversible, with normalization after 1 year.
Notes
Comment In: Scand J Work Environ Health. 2004 Jun;30(3):253; author reply 253-415250655
PubMed ID
15018025 View in PubMed
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7 records – page 1 of 1.