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Monien BH, Bergau N, Gauch F, Weikert C, Abraham K. Internal exposure to heat-induced food contaminants in omnivores, vegans and strict raw food eaters: biomarkers of exposure to acrylamide (hemoglobin adducts, urinary mercapturic acids) and new insights on its endogenous formation. Arch Toxicol 2024; 98:2889-2905. [PMID: 38819476 PMCID: PMC11324683 DOI: 10.1007/s00204-024-03798-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 05/23/2024] [Indexed: 06/01/2024]
Abstract
The urinary mercapturic acids N-acetyl-S-(2-carbamoylethyl)-L-cysteine (AAMA) and N-acetyl-S-(2-carbamoyl-2-hydroxyethyl)-L-cysteine (GAMA) are short-term biomarkers of exposure from acrylamide and its metabolite glycidamide, respectively. The medium-term exposure to acrylamide and glycidamide is monitored by the adducts N-(2-carbamoylethyl)-Val (AA-Val) and N-(2-carbamoyl-2-hydroxyethyl)-Val (GA-Val) in hemoglobin (Hb), respectively. Three questions were addressed by application of these biomarkers in two diet studies including 36 omnivores, 36 vegans and 16 strict raw food eaters (abstaining from any warmed or heated food for at least four months): first, what is the internal acrylamide exposure following a vegan or a raw food diet in comparison to that in omnivores? Second, did the exposure change between 2017 and 2021? And third, what is the stability over time of AAMA/GAMA excretion compared to that of AA-Val/GA-Val levels in Hb between both time points? Median urinary AAMA excretion per day in non-smoking omnivores, vegans and raw food eaters were 62.4, 85.4 and 15.4 µg/day, respectively; the corresponding median AA-Val levels were 27.7, 39.7 and 13.3 pmol/g Hb, respectively. Median levels in strict raw food eaters were about 25% (AAMA excretion) and 48% (AA-Val) of those in omnivores. In comparison to 2017, AAMA and GAMA excretion levels were hardly altered in 2021, however, levels of AA-Val and GA-Val in 2021 slightly increased. There was a weak correlation between AAMA excretion levels determined four years apart (rS = 0.30), and a moderate correlation between levels of AA-Val (rS = 0.55) in this timeframe. Our data in strict raw food eaters confirm a significant endogenous formation to acrylamide in a size range, which is-based on the levels of AA-Val-distinctly higher than reported previously based on levels of urinary AAMA excretion. The relatively lower AAMA excretion in raw food eaters likely represents a lower extent of glutathione conjugation due to missing hepatic first-pass metabolism in case of endogenous formation of acrylamide, which leads to a higher systemic exposure.
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Affiliation(s)
- Bernhard H Monien
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany.
| | - Nick Bergau
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Fabian Gauch
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Cornelia Weikert
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
| | - Klaus Abraham
- Department of Food Safety, German Federal Institute for Risk Assessment (BfR), Max-Dohrn-Strasse 8-10, 10589, Berlin, Germany
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Alshammari AAA, Almutairi AB, Arfeen M, Alkhamiss AS, Aldubayan MA, Alhowail AH, Mani V. Assessing the Influence of Intermittent Alcohol Access on Acrylamide-Induced Neuronal Toxicity in an Experimental Rat Model. Brain Sci 2024; 14:574. [PMID: 38928574 PMCID: PMC11201582 DOI: 10.3390/brainsci14060574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 05/27/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
Tobacco and alcohol have been identified as health risk behaviors associated with significant unfavorable health consequences, ranking within the list of the top ten causes of mortality and disability-adjusted life years (DALY). The combustion of tobacco leads to the formation of acrylamide (ACR), which is well known for its neurotoxic effects. Similarly, alcohol consumption has also been widely recognized for its neurotoxic effects. Both substances can affect neurons and neuroglia cells through various pathways. This study sought to examine the impacts of co-administration of ACR and intermittent-access ethanol (IAE) consumption over a period of one month. The experimental group received 20 mg/kg of ACR, administered orally, along with IAE of 20% ethanol sessions lasting 24 h, three times per week. The cognitive outcomes were assessed utilizing the elevated plus maze (EPM), which was employed as a means of assessing the capability to learn and remember, the novel object recognition (NOR) test, which was employed to assess recognition memory, and the Y-maze, which was used to explore a new environment and navigate. Additionally, ELISA assays were performed to examine underlying mechanisms, including markers associated with inflammation (NF-κB, PGE2, and TNF-α), apoptosis (Bcl2, Bax, and Caspase-3), and oxidative stress (MDA, catalase, and GSH). These markers were assessed in the brain homogenate as part of the investigation. Furthermore, a histopathological study was conducted. The findings indicated that NF-κB levels increased significantly in the combination of ACR and IAE groups (ACR + IAE) compared to either the ACR-alone or IAE-alone groups. However, parallel changes were observed in TNF-α, PGE2, Bax, Bcl-2, Caspase-3, GSH, and CAT levels when comparing the ACR + IAE group to the ACR-alone group. Comparable alterations were noted between the ACR + IAE treatment and IAE-alone groups in TNF-α, Bcl-2, MDA, GSH, and CAT levels. Moreover, the histopathological analysis revealed significant changes between the ACR + IAE and the ACR- or IAE-alone groups. Regarding memory parameters assessed using tests including EPM, NOR, and Y-maze, considerable changes were observed across all treatment groups as opposed to the control. Surprisingly, there were no notable differences in the NOR and Y-maze tasks between the alone and combination treatment. Further study is necessary to explore the long-term alteration of co-administering ACR and IAE on behavior, memory, and neurotoxicity-related mechanisms, in order to elucidate their combined effects more clearly.
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Affiliation(s)
- Abdulaziz Arif A. Alshammari
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia; (A.A.A.A.)
| | - Awyed Batah Almutairi
- Pharmacy Care Department, Al Midhnab General Hospital, Qassim Health Cluster, Ministry of Health, Al Mithnab 56526, Saudi Arabia
| | - Minhajul Arfeen
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia;
| | | | - Maha A. Aldubayan
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia; (A.A.A.A.)
| | - Ahmad H. Alhowail
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia; (A.A.A.A.)
| | - Vasudevan Mani
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia; (A.A.A.A.)
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Li L, Li J, Luo L, Li J, Huang H, Xie Y. Toxic encephalopathy, vision loss, and memory disorder caused by acute acrylamide exposure. JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE 2024; 21:152-161. [PMID: 38363758 DOI: 10.1080/15459624.2024.2305135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
Acrylamide (ACR) is an irritant that can cause damage to the eyes, skin, and nervous and reproductive systems. This study aims to illustrate a case of central nervous system and optic nerve damage from exposure to ACR. In this case, a 49-year-old male material handler was accidentally splashed with ACR solution on both of his upper limbs. Consequently, he was admitted to the hospital with toxic encephalopathy, characterized by cerebellar ataxia and slurred speech. Magnetic resonance imaging scan, a brain computed tomography scan blood sample analyses, optic coherence tomography, electroneuromyogram, and visual evoked potentials examination were performed. After 20 days of receiving symptomatic support treatment, the patient continued to experience disturbances in consciousness. Then, he developed vision loss, memory disorders, and symptoms of peripheral neuropathy such as skin peeling, extremity weakness, and absent tendon reflexes. This case report underscores the severe consequences of acute dermal exposure to high concentrations of ACR, resulting in toxic encephalopathy, visual impairment, and memory disorders, which will contribute to a broader understanding of ACR toxicity.
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Affiliation(s)
- Lubei Li
- Key Laboratory of Molecular Epidemiology of Hunan Province, School of Medicine, Hunan Normal University, Changsha, P. R. China
| | - Jimeng Li
- Changsha Center for Disease Control and Prevention, Changsha, P. R. China
| | - Lei Luo
- Key Laboratory of Molecular Epidemiology of Hunan Province, School of Medicine, Hunan Normal University, Changsha, P. R. China
- Changsha Center for Disease Control and Prevention, Changsha, P. R. China
| | - Juanping Li
- Changsha Center for Disease Control and Prevention, Changsha, P. R. China
| | - Huidan Huang
- Key Laboratory of Molecular Epidemiology of Hunan Province, School of Medicine, Hunan Normal University, Changsha, P. R. China
| | - Ying Xie
- Key Laboratory of Molecular Epidemiology of Hunan Province, School of Medicine, Hunan Normal University, Changsha, P. R. China
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Sabbioni G, Castaño A, Esteban López M, Göen T, Mol H, Riou M, Tagne-Fotso R. Literature review and evaluation of biomarkers, matrices and analytical methods for chemicals selected in the research program Human Biomonitoring for the European Union (HBM4EU). ENVIRONMENT INTERNATIONAL 2022; 169:107458. [PMID: 36179646 DOI: 10.1016/j.envint.2022.107458] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 08/03/2022] [Accepted: 08/03/2022] [Indexed: 06/16/2023]
Abstract
Humans are potentially exposed to a large amount of chemicals present in the environment and in the workplace. In the European Human Biomonitoring initiative (Human Biomonitoring for the European Union = HBM4EU), acrylamide, mycotoxins (aflatoxin B1, deoxynivalenol, fumonisin B1), diisocyanates (4,4'-methylenediphenyl diisocyanate, 2,4- and 2,6-toluene diisocyanate), and pyrethroids were included among the prioritized chemicals of concern for human health. For the present literature review, the analytical methods used in worldwide biomonitoring studies for these compounds were collected and presented in comprehensive tables, including the following parameter: determined biomarker, matrix, sample amount, work-up procedure, available laboratory quality assurance and quality assessment information, analytical techniques, and limit of detection. Based on the data presented in these tables, the most suitable methods were recommended. According to the paradigm of biomonitoring, the information about two different biomarkers of exposure was evaluated: a) internal dose = parent compounds and metabolites in urine and blood; and b) the biologically effective = dose measured as blood protein adducts. Urine was the preferred matrix used for deoxynivalenol, fumonisin B1, and pyrethroids (biomarkers of internal dose). Markers of the biological effective dose were determined as hemoglobin adducts for diisocyanates and acrylamide, and as serum-albumin-adducts of aflatoxin B1 and diisocyanates. The analyses and quantitation of the protein adducts in blood or the metabolites in urine were mostly performed with LC-MS/MS or GC-MS in the presence of isotope-labeled internal standards. This review also addresses the critical aspects of the application, use and selection of biomarkers. For future biomonitoring studies, a more comprehensive approach is discussed to broaden the selection of compounds.
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Affiliation(s)
- Gabriele Sabbioni
- Università della Svizzera Italiana (USI), Research and Transfer Service, Lugano, Switzerland; Institute of Environmental and Occupational Toxicology, Airolo, Switzerland; Walther-Straub-Institute for Pharmacology and Toxicology, Ludwig-Maximilians-University Munich, Munich, Germany.
| | - Argelia Castaño
- National Centre for Environmental Health, Instituto de Salud Carlos III (ISCIII), Majadahonda, Spain.
| | - Marta Esteban López
- National Centre for Environmental Health, Instituto de Salud Carlos III (ISCIII), Majadahonda, Spain.
| | - Thomas Göen
- Institute and Outpatient Clinic of Occupational, Social and Environmental Medicine, Friedrich-Alexander Universität Erlangen-Nürnberg (IPASUM), Erlangen, Germany.
| | - Hans Mol
- Wageningen Food Safety Research, Part of Wageningen University & Research, Wageningen, the Netherlands.
| | - Margaux Riou
- Department of Environmental and Occupational Health, Santé publique France, The National Public Health Agency, Saint-Maurice, France.
| | - Romuald Tagne-Fotso
- Department of Environmental and Occupational Health, Santé publique France, The National Public Health Agency, Saint-Maurice, France.
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Albiach-Delgado A, Esteve-Turrillas FA, Fernández SF, Garlito B, Pardo O. Review of the state of the art of acrylamide human biomonitoring. CHEMOSPHERE 2022; 295:133880. [PMID: 35150700 DOI: 10.1016/j.chemosphere.2022.133880] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 01/23/2022] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
Human biomonitoring (HBM) is a very useful tool for assessing human exposure to acrylamide (AA). In the framework of the Human Biomonitoring Initiative (HBM4EU) AA was included in its second list of priority substances due to the potential threat to human health. HBM data on AA are scarce, but the use of specific and sensitive biomarkers represents a reliable indicator of exposure. In this review an overview of available knowledge on HBM of AA is provided in terms of: i) preferred exposure biomarkers and matrices for the HBM of AA; ii) analytical methods for determining its biomarkers of exposure in the most used specimens; iii) current HBM data available; and iv) tools for interpreting HBM data for AA in relation to risk assessment. Finally, future trends in this field are discussed.
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Affiliation(s)
- Abel Albiach-Delgado
- Department of Analytical Chemistry, University of Valencia, Doctor Moliner 50, 46100, Burjassot, Spain
| | | | - Sandra F Fernández
- Department of Analytical Chemistry, University of Valencia, Doctor Moliner 50, 46100, Burjassot, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Av. Catalunya, 21, 46020, Valencia, Spain
| | - Borja Garlito
- Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Av. Catalunya, 21, 46020, Valencia, Spain
| | - Olga Pardo
- Department of Analytical Chemistry, University of Valencia, Doctor Moliner 50, 46100, Burjassot, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Av. Catalunya, 21, 46020, Valencia, Spain.
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6
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Pedersen M, Vryonidis E, Joensen A, Törnqvist M. Hemoglobin adducts of acrylamide in human blood - What has been done and what is next? Food Chem Toxicol 2022; 161:112799. [PMID: 34995709 DOI: 10.1016/j.fct.2021.112799] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 12/21/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022]
Abstract
Acrylamide forms in many commonly consumed foods. In animals, acrylamide causes tumors, neurotoxicity, developmental and reproductive effects. Acrylamide crosses the placenta and has been associated with restriction of intrauterine growth and certain cancers. The impact on human health is poorly understood and it is impossible to say what level of dietary exposure to acrylamide can be deemed safe as the assessment of exposure is uncertain. The determination of hemoglobin (Hb) adducts from acrylamide is increasingly being used to improve the exposure assessment of acrylamide. We aim to outline the literature on Hb adduct levels from acrylamide in humans and discuss methodological issues and research gaps. A total of 86 studies of 27,966 individuals from 19 countries were reviewed. Adduct levels were highest in occupationally exposed individuals and smokers. Levels ranged widely from 3 to 210 pmol/g Hb in non-smokers and this wide range suggests that dietary exposure to acrylamide varies largely. Non-smokers from the US and Canada had slightly higher levels as compared with non-smokers from elsewhere, but differences within studies were larger than between studies. Large studies with exposure assessment of acrylamide and related adduct forming compounds from diet during early-life are encouraged for the evaluation of health effects.
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Affiliation(s)
- Marie Pedersen
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark.
| | | | - Andrea Joensen
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Margareta Törnqvist
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
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Timmermann CAG, Mølck SS, Kadawathagedara M, Bjerregaard AA, Törnqvist M, Brantsæter AL, Pedersen M. A Review of Dietary Intake of Acrylamide in Humans. TOXICS 2021; 9:155. [PMID: 34209352 PMCID: PMC8309717 DOI: 10.3390/toxics9070155] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/18/2021] [Accepted: 06/24/2021] [Indexed: 12/17/2022]
Abstract
The dietary intake of acrylamide (AA) is a health concern, and food is being monitored worldwide, but the extent of AA exposure from the diet is uncertain. The aim of this review was to provide an overview of estimated dietary intake. We performed a PubMed search identifying studies that used dietary questionnaires and recalls to estimate total dietary AA intake. A total of 101 studies were included, corresponding to 68 original study populations from 26 countries. Questionnaires were used in 57 studies, dietary recalls were used in 33 studies, and 11 studies used both methods. The estimated median AA intake ranged from 0.02 to 1.53 μg/kg body weight/day between studies. Children were represented in 25 studies, and the body-weight-adjusted estimated AA intake was up to three times higher for children than adults. The majority of studies were from Europe (n = 65), Asia (n = 17), and the USA (n = 12). Studies from Asia generally estimated lower intakes than studies from Europe and the USA. Differences in methods undermine direct comparison across studies. The assessment of AA intake through dietary questionnaires and recalls has limitations. The integration of these methods with the analysis of validated biomarkers of exposure/internal dose would improve the accuracy of dietary AA intake exposure estimation. This overview shows that AA exposure is widespread and the large variation across and within populations shows a potential for reduced intake among those with the highest exposure.
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Affiliation(s)
| | - Signe Sonne Mølck
- Department of Public Health, University of Copenhagen, 1356 Copenhagen, Denmark;
| | - Manik Kadawathagedara
- Inserm, Institut de Recherche en Santé, Environnement et Travail, 35000 Rennes, France;
| | - Anne Ahrendt Bjerregaard
- Center for Clinical Research and Prevention, Bispebjerg & Frederiksberg Hospital, 2000 Frederiksberg, Denmark;
- Department of Epidemiology Research, Statens Serum Institute, 2300 Copenhagen, Denmark
| | - Margareta Törnqvist
- Department of Environmental Science, Stockholm University, 10691 Stockholm, Sweden;
| | - Anne Lise Brantsæter
- Department of Environmental Health, Norwegian Institute of Public Health, 0213 Oslo, Norway;
| | - Marie Pedersen
- Department of Public Health, University of Copenhagen, 1356 Copenhagen, Denmark;
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Kito K, Ishihara J, Kotemori A, Zha L, Liu R, Sawada N, Iwasaki M, Sobue T, Tsugane S. Dietary Acrylamide Intake and the Risk of Pancreatic Cancer: The Japan Public Health Center-Based Prospective Study. Nutrients 2020; 12:E3584. [PMID: 33266487 PMCID: PMC7700165 DOI: 10.3390/nu12113584] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 11/10/2020] [Accepted: 11/20/2020] [Indexed: 12/15/2022] Open
Abstract
Acrylamide is a probable carcinogen in humans. Few studies have assessed dietary acrylamide intake and the risk of pancreatic cancer; however, these studies are based on Western populations. Our purpose was to investigate the association of dietary acrylamide intake with the risk of pancreatic cancer utilizing data from the Japan Public Health Center-based Prospective Study. We evaluated the data of 89,729 participants aged 45-74 years, who replied to a questionnaire on past medical history and lifestyle habits from 1995-1998. Dietary acrylamide intake was estimated utilizing a validated food frequency questionnaire. We calculated the hazard ratios and 95% confidence intervals by using Cox proportional-hazards regression models. The average follow-up was 15.2 years, and 576 cases of pancreatic cancer were diagnosed. In the multivariate-adjusted model, an association between dietary acrylamide intake and pancreatic cancer risk was not demonstrated (hazard ratio for the highest vs. lowest quartile = 0.83, 95% confidence interval: 0.65-1.05, p for trend = 0.07). Furthermore, in the analyses stratified by sex, smoking status, coffee consumption, green tea consumption, alcohol consumption, and body mass index, no significant association was detected. Dietary acrylamide intake was not associated with the pancreatic cancer risk in Japanese individuals.
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Affiliation(s)
- Kumiko Kito
- Graduate School of Environmental Health, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan;
| | - Junko Ishihara
- Department of Food and Life Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan;
| | - Ayaka Kotemori
- Department of Food and Life Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan;
| | - Ling Zha
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; (L.Z.); (R.L.); (T.S.)
| | - Rong Liu
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; (L.Z.); (R.L.); (T.S.)
| | - Norie Sawada
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan; (N.S.); (M.I.); (S.T.)
| | - Motoki Iwasaki
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan; (N.S.); (M.I.); (S.T.)
| | - Tomotaka Sobue
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan; (L.Z.); (R.L.); (T.S.)
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan; (N.S.); (M.I.); (S.T.)
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Gedik S, Erdemli ME, Gul M, Yigitcan B, Gozukara Bag H, Aksungur Z, Altinoz E. Investigation of the protective effects of crocin on acrylamide induced small and large intestine damage in rats. Biotech Histochem 2018; 93:267-276. [PMID: 29644878 DOI: 10.1080/10520295.2018.1432888] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
We investigated repair of acrylamide (AA) induced damage in intestines by administration of crocin. We used 40 male Wistar rats in four groups of 10 animals: control, AA, crocin, and AA + crocin groups. We investigated biochemical and histological changes to small and large intestine. AA ingestion decreased glutathione (GSH) levels and total antioxidant status (TAS) in the intestine compared to the control group, while superoxide dismutase (SOD) and catalase (CAT) activities, and total oxidant status (TOS) and malondialdehyde (MDA) levels were increased. Villi were shortened and villus degeneration was observed in ileum of the AA group. Degeneration of surface epithelium and Liberkühn crypts were observed in colon sections. GSH and TAS levels increased after administration of AA together with crocin, while SOD and CAT levels and TOS and MDA levels decreased; significant recovery of histological damage also was observed. We found that crocin exhibits protective effects on AA induced small and large intestine damage by inhibiting oxidative stress.
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Affiliation(s)
- S Gedik
- a Department of Chemistry, Faculty of Sciences , Karabuk University , Karabuk
| | - M E Erdemli
- b Department of Medical Biochemistry, Medical Faculty , Nigde Omer Halisdemir University , Nigde
| | - M Gul
- c Department of Histology and Embryology, Medical Faculty , Inonu University , Malatya
| | - B Yigitcan
- c Department of Histology and Embryology, Medical Faculty , Inonu University , Malatya
| | - H Gozukara Bag
- d Department of Biostatistics, Medical Faculty , Inonu University , Malatya
| | - Z Aksungur
- e Department of Medical Biochemistry, Medical Faculty , Inonu University , Malatya
| | - E Altinoz
- f Department of Medical Biochemistry, Medical Faculty , Karabuk University , Karabuk , Turkey
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Parallelogram based approach for in vivo dose estimation of genotoxic metabolites in humans with relevance to reduction of animal experiments. Sci Rep 2017; 7:17560. [PMID: 29242644 PMCID: PMC5730592 DOI: 10.1038/s41598-017-17692-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 11/29/2017] [Indexed: 12/14/2022] Open
Abstract
When employing metabolism studies of genotoxic compounds/metabolites and cancer tests for risk estimation, low exposure doses in humans are roughly extrapolated from high exposure doses in animals. An improvement is to measure the in vivo dose, i.e. area under concentration-time curve (AUC), of the causative genotoxic agent. In the present work, we propose and evaluate a parallelogram based approach for estimation of the AUC of genotoxic metabolites that incorporates in vitro metabolic data and existing knowledge from published in vivo data on hemoglobin (Hb) adduct levels, using glycidamide (GA) as a case study compound that is the genotoxic metabolite of acrylamide (AA). The estimated value of AUC of GA per AUC of AA from the parallelogram approach vs. that from Hb adduct levels measured in vivo were in good agreement; 0.087 vs. 0.23 in human and 1.4 vs. 0.53 in rat, respectively. The described parallelogram approach is simple, and can be useful to provide an approximate estimation of the AUC of metabolites in humans at low exposure levels for which sensitive methods for analyzing the metabolites are not available, as well as aid in reduction of animal experiments for metabolism studies that are to be used for cancer risk assessment.
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Obón-Santacana M, Lujan-Barroso L, Freisling H, Cadeau C, Fagherazzi G, Boutron-Ruault MC, Kaaks R, Fortner RT, Boeing H, Ramón Quirós J, Molina-Montes E, Chamosa S, Castaño JMH, Ardanaz E, Khaw KT, Wareham N, Key T, Trichopoulou A, Lagiou P, Naska A, Palli D, Grioni S, Tumino R, Vineis P, De Magistris MS, Bueno-de-Mesquita HB, Peeters PH, Wennberg M, Bergdahl IA, Vesper H, Riboli E, Duell EJ. Dietary and lifestyle determinants of acrylamide and glycidamide hemoglobin adducts in non-smoking postmenopausal women from the EPIC cohort. Eur J Nutr 2017; 56:1157-1168. [PMID: 26850269 PMCID: PMC5576523 DOI: 10.1007/s00394-016-1165-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 01/22/2016] [Indexed: 01/12/2023]
Abstract
PURPOSE Acrylamide was classified as 'probably carcinogenic' to humans in 1994 by the International Agency for Research on Cancer. In 2002, public health concern increased when acrylamide was identified in starchy, plant-based foods, processed at high temperatures. The purpose of this study was to identify which food groups and lifestyle variables were determinants of hemoglobin adduct concentrations of acrylamide (HbAA) and glycidamide (HbGA) in 801 non-smoking postmenopausal women from eight countries in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. METHODS Biomarkers of internal exposure were measured in red blood cells (collected at baseline) by high-performance liquid chromatography/tandem mass spectrometry (HPLC/MS/MS) . In this cross-sectional analysis, four dependent variables were evaluated: HbAA, HbGA, sum of total adducts (HbAA + HbGA), and their ratio (HbGA/HbAA). Simple and multiple regression analyses were used to identify determinants of the four outcome variables. All dependent variables (except HbGA/HbAA) and all independent variables were log-transformed (log2) to improve normality. Median (25th-75th percentile) HbAA and HbGA adduct levels were 41.3 (32.8-53.1) pmol/g Hb and 34.2 (25.4-46.9) pmol/g Hb, respectively. RESULTS The main food group determinants of HbAA, HbGA, and HbAA + HbGA were biscuits, crackers, and dry cakes. Alcohol intake and body mass index were identified as the principal determinants of HbGA/HbAA. The total percent variation in HbAA, HbGA, HbAA + HbGA, and HbGA/HbAA explained in this study was 30, 26, 29, and 13 %, respectively. CONCLUSIONS Dietary and lifestyle factors explain a moderate proportion of acrylamide adduct variation in non-smoking postmenopausal women from the EPIC cohort.
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Affiliation(s)
- Mireia Obón-Santacana
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, Catalan Institute of Oncology, Bellvitge Biomedical Research Institute (ICO-IDIBELL), Avda Gran Via Barcelona 199-203, L'Hospitalet de Llobregat, 08908, Barcelona, Spain
| | - Leila Lujan-Barroso
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, Catalan Institute of Oncology, Bellvitge Biomedical Research Institute (ICO-IDIBELL), Avda Gran Via Barcelona 199-203, L'Hospitalet de Llobregat, 08908, Barcelona, Spain
| | - Heinz Freisling
- Dietary Exposure Assessment Group, International Agency for Research on Cancer, 150 Cours Albert Thomas, 69372, Lyon, France
| | - Claire Cadeau
- Centre for Research in Epidemiology and Population Health (CESP), U1018, Nutrition, Hormones and Women's Health Team, Inserm, 94805, Villejuif, France
- UMRS 1018, Université Paris Sud, 94805, Villejuif, France
- Institut Gustave Roussy, 94805, Villejuif, France
| | - Guy Fagherazzi
- Centre for Research in Epidemiology and Population Health (CESP), U1018, Nutrition, Hormones and Women's Health Team, Inserm, 94805, Villejuif, France
- UMRS 1018, Université Paris Sud, 94805, Villejuif, France
- Institut Gustave Roussy, 94805, Villejuif, France
| | - Marie-Christine Boutron-Ruault
- Centre for Research in Epidemiology and Population Health (CESP), U1018, Nutrition, Hormones and Women's Health Team, Inserm, 94805, Villejuif, France
- UMRS 1018, Université Paris Sud, 94805, Villejuif, France
- Institut Gustave Roussy, 94805, Villejuif, France
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120, Heidelberg, Germany
| | - Renée T Fortner
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120, Heidelberg, Germany
| | - Heiner Boeing
- Department of Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Arthur-Scheunert-Allee 114/116, 14558, Nuthetal, Germany
| | - J Ramón Quirós
- Public Health and Participation Directorate, Ciriaco Miguel Vigil 9, 33009, Asturias, Spain
| | - Esther Molina-Montes
- Escuela Andaluza de Salud Pública, Instituto de Investigación Biosanitaria ibs. GRANADA, Hospitales Universitarios de Granada, Universidad de Granada, Cuesta del Observatorio, 4, Campus Universitario de Cartuja, 18080, Granada, Spain
- CIBER Epidemiology and Public Health CIBERESP, Melchor Fernández Almagro 3-5, 28029, Madrid, Spain
| | - Saioa Chamosa
- Public Health Division of Gipuzkoa-BIODONOSTIA, Basque Regional Health Department, Avda. Navarra, 4, 20013, San Sebastián, Spain
| | - José María Huerta Castaño
- CIBER Epidemiology and Public Health CIBERESP, Melchor Fernández Almagro 3-5, 28029, Madrid, Spain
- Department of Epidemiology, Murcia Regional Health Authority, Ronda de Levante, 11, 30008, Murcia, Spain
| | - Eva Ardanaz
- CIBER Epidemiology and Public Health CIBERESP, Melchor Fernández Almagro 3-5, 28029, Madrid, Spain
- Navarre Public Health Institute, Polígono de Landaben C/F, 31012, Pamplona, Spain
| | - Kay-Tee Khaw
- University of Cambridge School of Clinical Medicine, Robinson Way, Cambridge, CB2 0SR, UK
| | - Nick Wareham
- MRC Epidemiology Unit, University of Cambridge, 184 Hills Road, Cambridge, CB2 8PQ, UK
| | - Tim Key
- Cancer Epidemiology Unit, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - Antonia Trichopoulou
- Hellenic Health Foundation, 13 Kaisareias Street, 115 27, Athens, Greece
- Bureau of Epidemiologic Research, Academy of Athens, 23 Alexandroupoleos Street, 115 27, Athens, Greece
| | - Pagona Lagiou
- Department of Hygiene, Epidemiology and Medical Statistics, University of Athens Medical School, 75 M. Asias Street, Goudi, 115 27, Athens, Greece
- Department of Epidemiology, Harvard School of Public Health, 677 Huntington Avenue, Boston, MA, 02115, USA
| | - Androniki Naska
- Hellenic Health Foundation, 13 Kaisareias Street, 115 27, Athens, Greece
- Department of Hygiene, Epidemiology and Medical Statistics, University of Athens Medical School, 75 M. Asias Street, Goudi, 115 27, Athens, Greece
| | - Domenico Palli
- Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute-ISPO, Ponte Nuovo, Via delle Oblate n.2, 50141, Florence, Italy
| | - Sara Grioni
- Epidemiology and Prevention Unit, Fondazione IRCSS Istituto Nazionale dei Tumori, Via Venezian, 1, 20133, Milan, Italy
| | - Rosario Tumino
- Cancer Registry and Histopathology Unit, "Civic-M.P.Arezzo" Hospital, Via Civile, 97100, Ragusa, Italy
| | - Paolo Vineis
- Human Genetics Foundation (HuGeF), Via Nizza 52, 10126, Turin, Italy
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, Norfolk Place, London, W2 1PG, UK
| | - Maria Santucci De Magistris
- Department of Clinical and Experimental Medicine, Federico II University, Corso Umberto I, 40bis, 80138, Naples, Italy
| | - H B Bueno-de-Mesquita
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, Norfolk Place, London, W2 1PG, UK
- Department for Determinants of Chronic Diseases (DCD), National Institute for Public Health and the Environment (RIVM), P.O. Box 1, 3720 BA, Bilthoven, The Netherlands
- Department of Gastroenterology and Hepatology, University Medical Centre, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
- Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Jalan Universiti, 50603, Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Petra H Peeters
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, Norfolk Place, London, W2 1PG, UK
- Department of Epidemiology, Julius Center for Health Sciences and Primary Care, University Medical Center, Huispost Str. 6.131, 3508GA, Utrecht, The Netherlands
| | - Maria Wennberg
- Department of Public Health and Clinical Medicine, Umeå University, 1A, 9 tr, Kirurgcentrum, 952, 901 85, Umeå, Sweden
| | - Ingvar A Bergdahl
- Department of Biobank Research, Umeå University, 1A, 9 tr, Kirurgcentrum, 952, 901 85, Umeå, Sweden
| | - Hubert Vesper
- Centers for Disease Control and Prevention, MS F25, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA
| | - Elio Riboli
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, Norfolk Place, London, W2 1PG, UK
| | - Eric J Duell
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, Catalan Institute of Oncology, Bellvitge Biomedical Research Institute (ICO-IDIBELL), Avda Gran Via Barcelona 199-203, L'Hospitalet de Llobregat, 08908, Barcelona, Spain.
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Risks of dietary acrylamide exposure: A systematic review. Food Chem 2014; 157:310-22. [DOI: 10.1016/j.foodchem.2014.02.046] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 02/06/2014] [Accepted: 02/12/2014] [Indexed: 01/26/2023]
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Vesper HW, Sternberg MR, Frame T, Pfeiffer CM. Among 10 sociodemographic and lifestyle variables, smoking is strongly associated with biomarkers of acrylamide exposure in a representative sample of the U.S. Population. J Nutr 2013; 143:995S-1000S. [PMID: 23596166 PMCID: PMC4822994 DOI: 10.3945/jn.112.173013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Hemoglobin adducts of acrylamide (HbAA) and glycidamide (HbGA) have been measured as biomarkers of acrylamide exposure and metabolism in a nationally representative sample of the U.S. population in the NHANES 2003-2004. We assessed the association of sociodemographic (age, sex, race-ethnicity, education, and income) and lifestyle (smoking, alcohol consumption, BMI, physical activity, and dietary supplement use) variables with these biomarkers in U.S. adults (aged ≥ 20 y). We used bivariate and multiple regression models and assessed the magnitude of an estimated change in biomarker concentration with change in a covariable for 2 biomarkers of acrylamide exposure. Smoking was strongly and significantly correlated with HbAA and HbGA concentrations (rs = 0.51 and 0.42, respectively), with biomarker concentrations being 126 and 101% higher in smokers compared with nonsmokers after adjusting for sociodemographic and lifestyle covariates. Age was moderately and significantly correlated with both biomarkers (rs = -0.21 and -0.22, respectively). BMI (rs = -0.11) and alcohol consumption (rs = 0.13) were weakly yet significantly correlated with HbAA concentrations only. The estimated percentage change in biomarker concentration was ≤ 20% for all variables other than smoking after adjusting for sociodemographic and lifestyle covariates. Using multiple regression models, the sociodemographic variables explained 9 and 7% whereas the sociodemographic and lifestyle variables together explained 46 and 25% of the variability in HbAA and HbGA, respectively, showing the importance of considering and adequately controlling for these variables in future studies. Our findings will be useful in the design and analysis of future studies that assess and evaluate exposure to acrylamide and its metabolism to glycidamide.
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Affiliation(s)
| | | | | | - Christine M. Pfeiffer
- To whom correspondence should be addressed: Christine M. Pfeiffer, Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Hwy, NE, Mail Stop F55, Atlanta, GA 30341,
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Freisling H, Moskal A, Ferrari P, Nicolas G, Knaze V, Clavel-Chapelon F, Boutron-Ruault MC, Nailler L, Teucher B, Grote VA, Boeing H, Clemens M, Tjønneland A, Olsen A, Overvad K, Quirós JR, Duell EJ, Sánchez MJ, Amiano P, Chirlaque MD, Barricarte A, Khaw KT, Wareham NJ, Crowe FL, Gallo V, Oikonomou E, Naska A, Trichopoulou A, Palli D, Agnoli C, Tumino R, Polidoro S, Mattiello A, Bueno-de-Mesquita HB, Ocké MC, Peeters PHM, Wirfält E, Ericson U, Bergdahl IA, Johansson I, Hjartåker A, Engeset D, Skeie G, Riboli E, Slimani N. Dietary acrylamide intake of adults in the European Prospective Investigation into Cancer and Nutrition differs greatly according to geographical region. Eur J Nutr 2012; 52:1369-80. [DOI: 10.1007/s00394-012-0446-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 09/10/2012] [Indexed: 11/24/2022]
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Challenges in estimating the validity of dietary acrylamide measurements. Eur J Nutr 2012; 52:1503-12. [PMID: 23114503 DOI: 10.1007/s00394-012-0457-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Accepted: 10/16/2012] [Indexed: 01/12/2023]
Abstract
BACKGROUND Acrylamide is a chemical compound present in tobacco smoke and food, classified as a probable human carcinogen and a known human neurotoxin. Acrylamide is formed in foods, typically carbohydrate-rich and protein-poor plant foods, during high-temperature cooking or other thermal processing. The objectives of this study were to compare dietary estimates of acrylamide from questionnaires (DQ) and 24-h recalls (R) with levels of acrylamide adduct (AA) in haemoglobin. METHODS In the European Prospective Investigation into Cancer and Nutrition (EPIC) study, acrylamide exposure was assessed in 510 participants from 9 European countries, randomly selected and stratified by age, sex, with equal numbers of never and current smokers. After adjusting for country, alcohol intake, smoking status, number of cigarettes and energy intake, correlation coefficients between various acrylamide measurements were computed, both at the individual and at the aggregate (centre) level. RESULTS Individual level correlation coefficient between DQ and R measurements (r DQ,R) was 0.17, while r DQ,AA and r R,AA were 0.08 and 0.06, respectively. In never smokers, r DQ,R, r DQ,AA and r R,AA were 0.19, 0.09 and 0.02, respectively. The correlation coefficients between means of DQ, R and AA measurements at the centre level were larger (r > 0.4). CONCLUSIONS These findings suggest that estimates of total acrylamide intake based on self-reported diet correlate weakly with biomarker AA Hb levels. Possible explanations are the lack of AA levels to capture dietary acrylamide due to individual differences in the absorption and metabolism of acrylamide, and/or measurement errors in acrylamide from self-reported dietary assessments, thus limiting the possibility to validate acrylamide DQ measurements.
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Vikström AC, Warholm M, Paulsson B, Axmon A, Wirfält E, Törnqvist M. Hemoglobin adducts as a measure of variations in exposure to acrylamide in food and comparison to questionnaire data. Food Chem Toxicol 2012; 50:2531-9. [PMID: 22525869 DOI: 10.1016/j.fct.2012.04.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Revised: 04/03/2012] [Accepted: 04/03/2012] [Indexed: 10/28/2022]
Abstract
UNLABELLED Measurement of haemoglobin (Hb) adducts from acrylamide (AA) and its metabolite glycidamide (GA) is a possibility to improve the exposure assessment in epidemiological studies of AA intake from food. This study aims to clarify the reliability of Hb-adduct measurement from individual single samples for exposure assessment of dietary AA intake. The intra-individual variations of AA- and GA-adduct levels measured in blood samples collected over 20 months from 13 non-smokers were up to 2-fold and 4-fold, respectively. The corresponding interindividual variations observed between 68 non-smokers, with large differences in AA intake, were 6-fold and 8-fold, respectively. The intra-individual variation of the GA-to-AA-adduct level ratio was up to 3-fold, compared to 11-fold between individuals (n = 68). From AA-adduct levels the average AA daily intake (n = 68) was calculated and compared to that estimated from dietary history methodology: 0.52 and 0.67 μg/kg body weight and day, respectively. At an individual level the measures showed low association (Rs = 0.39). CONCLUSIONS Dietary AA is the dominating source to measured AA-adduct levels and corresponding inter- and intra-individual variations in non-smokers. Measurements from single individual samples are useful for calculation of average AA intake and its variation in a cohort, and for identification of individuals only from extreme intake groups.
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Affiliation(s)
- Anna C Vikström
- Department of Materials and Environmental Chemistry, Environmental Chemistry Unit, Stockholm University, SE-104 05 Stockholm, Sweden
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von Stedingk H, Vikström AC, Rydberg P, Pedersen M, Nielsen JKS, Segerbäck D, Knudsen LE, Törnqvist M. Analysis of hemoglobin adducts from acrylamide, glycidamide, and ethylene oxide in paired mother/cord blood samples from Denmark. Chem Res Toxicol 2011; 24:1957-65. [PMID: 21882862 DOI: 10.1021/tx200284u] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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.
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Affiliation(s)
- Hans von Stedingk
- Department of Materials and Environmental Chemistry, Environmental Chemistry Unit, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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Pelucchi C, Galeone C, Talamini R, Negri E, Polesel J, Serraino D, La Vecchia C. Dietary acrylamide and pancreatic cancer risk in an Italian case--control study. Ann Oncol 2011; 22:1910-5. [PMID: 21285136 DOI: 10.1093/annonc/mdq672] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Information on the relation between acrylamide exposure and risk of pancreatic cancer is scanty and inconsistent. PATIENTS AND METHODS We investigated the issue in a case-control study conducted from 1991 to 2008 in Northern Italy. Cases were 326 patients with incident pancreatic cancer, admitted to major teaching and general hospitals. Controls were 652 subjects admitted to the same hospitals with acute non-neoplastic conditions. Acrylamide mean content of various food items was derived from international databases and Italian sources. Odds ratios (ORs) and 95% confidence intervals (CIs) of pancreatic cancer were derived using conditional logistic regression adjusted for several covariates, including energy intake. RESULTS The ORs of pancreatic cancer for subsequent quintiles of acrylamide intake, as compared with the lowest one, were 1.48 (95% CI 0.88-2.50), 1.57 (95% CI 0.91-2.69), 1.70 (95% CI 0.98-2.96) and 1.49 (95% CI 0.83-2.70), with no trend in risk (P value 0.21). The OR for an increase in acrylamide intake of 10 μg/day was 1.01 (95% CI 0.92-1.10). No meaningful difference between ORs was found in strata of smoking habit, alcohol drinking, body mass index and other selected covariates. CONCLUSION This study found no association between dietary acrylamide and pancreatic cancer in an Italian population.
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Affiliation(s)
- C Pelucchi
- Department of Epidemiology, Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy.
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Brandt P. Kontaminanten. J Verbrauch Lebensm 2010. [DOI: 10.1007/s00003-010-0619-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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