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Yang J, Na X, Li Z, Zhao A. Modification Role of Dietary Antioxidants in the Association of High Red Meat Intake and Lung Cancer Risk: Evidence from a Cancer Screening Trial. Antioxidants (Basel) 2024; 13:799. [PMID: 39061868 PMCID: PMC11273743 DOI: 10.3390/antiox13070799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/21/2024] [Accepted: 06/28/2024] [Indexed: 07/28/2024] Open
Abstract
Evidence on the association between red meat consumption and lung cancer risk is weak. This study examined the associations between red meat and lung cancer across levels of antioxidant intake from foods or supplements. Cox proportional hazard models were applied to assess hazard ratios (HRs) for lung cancer incidence in the Prostate, Lung, Colorectal, and Ovarian (PLCO) cancer screening trial. Baseline food frequency questionnaires measured red meat and antioxidant intake. The food-based Composite Dietary Antioxidant Index (fCDAI) evaluated the overall natural intake of vitamin A, vitamin C, vitamin E, zinc, magnesium, and selenium. During 13 years of follow-up, 95,647 participants developed 1599 lung cancer cases. Higher red meat consumption was associated with a higher risk of lung cancer (HRQ4vsQ1 1.43, 95%CI 1.20-1.71, p-trend < 0.001). We observed similar trends across groups with low or medium levels of antioxidant intake. However, no association was noticed in the group with the highest fCDAI (HRQ4vsQ1 1.24, 95%CI 0.90-1.72, p-trend = 0.08) and highest independent natural antioxidant intake. The attenuated risk was not consistently observed among groups with high supplement use. Lastly, we did not notice evidence of interactions between red meat and antioxidant intake. Our findings emphasize the importance of limiting red meat in lung cancer prevention.
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Affiliation(s)
- Jiaqi Yang
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China; (J.Y.); (X.N.); (Z.L.)
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Xiaona Na
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China; (J.Y.); (X.N.); (Z.L.)
- Institute for Healthy China, Tsinghua University, Beijing 100084, China
| | - Zhihui Li
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China; (J.Y.); (X.N.); (Z.L.)
- Institute for Healthy China, Tsinghua University, Beijing 100084, China
| | - Ai Zhao
- Vanke School of Public Health, Tsinghua University, Beijing 100084, China; (J.Y.); (X.N.); (Z.L.)
- Institute for Healthy China, Tsinghua University, Beijing 100084, China
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DeBenedictis JN, Baars E, Ochoteco-Asensio J, van Breda SG, de Kok TM. Genetic Variability Impacts Genotoxic and Transcriptome Responses in the Human Colon after the Consumption of Processed Red Meat Products and Those with Added Phytochemical Extracts. Nutrients 2024; 16:425. [PMID: 38337709 PMCID: PMC10857093 DOI: 10.3390/nu16030425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/22/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
The PHYTOME study investigated the effect of consuming processed meat products on outcomes related to colorectal cancer risk without testing the impact of genetic variability on these responses. This research aims to elucidate the genetic impact on apparent total N-nitroso compound (ATNC) excretion, colonic DNA adduct formation, ex vivo-induced DNA damage, and gene expression changes in colon biopsies of healthy participants. Through a systematic literature review, candidate polymorphisms were selected and then detected using TaqMan and PCR analysis. The effect of genotype on study outcomes was determined via a linear mixed model and analysis of variance. Machine learning was used to evaluate relative allele importance concerning genotoxic responses, which established a ranking of the most protective alleles and a combination of genotypes (gene scores). Participants were grouped by GSTM1 genotype and differentially expressed genes (DEGs), and overrepresented biological pathways were compared between groups. Stratifying participants by ten relevant genes revealed significant variations in outcome responses. After consumption of processed red meat, variations in NQO1 and COMT impacted responses in ATNC levels (µmol/L) (+9.56 for wildtype vs. heterozygous) and DNA adduct levels (pg/µg DNA) (+1.26 for variant vs. wildtype and +0.43 for variant vs. heterozygous), respectively. After phytochemicals were added to the meat, GSTM1 variation impacted changes in DNA adduct levels (-6.12 for deletion vs. wildtype). The gene scores correlated with these responses and DEGs were identified by GSTM1 genotype. The altered pathways specific to the GSTM1 wildtype group included 'metabolism', 'cell cycle', 'vitamin D receptor', and 'metabolism of water-soluble vitamins and co-factors'. Genotype impacted both the potential genotoxicity of processed red meat and the efficacy of protective phytochemical extracts.
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Affiliation(s)
| | | | | | - Simone G. van Breda
- Toxicogenomics Department, GROW School of Oncology & Reproduction, Faculty of Health, Medicine & Life Sciences, Maastricht University, 6211 LK Maastricht, The Netherlands (J.O.-A.)
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Mossine VV, Mawhinney TP. 1-Amino-1-deoxy-d-fructose ("fructosamine") and its derivatives. Adv Carbohydr Chem Biochem 2023; 83:27-132. [PMID: 37968038 DOI: 10.1016/bs.accb.2023.10.002] [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] [Indexed: 11/17/2023]
Abstract
Fructosamine has long been considered as a key intermediate of the Maillard reaction, which to a large extent is responsible for specific aroma, taste, and color formation in thermally processed or dehydrated foods. Since the 1980s, however, as a product of the Amadori rearrangement reaction between glucose and biologically significant amines such as proteins, fructosamine has experienced a boom in biomedical research, mainly due to its relevance to pathologies in diabetes and aging. In this chapter, we assess the scope of the knowledge on and applications of fructosamine-related molecules in chemistry, food, and health sciences, as reflected mostly in publications within the past decade. Methods of fructosamine synthesis and analysis, its chemical, and biological properties, and degradation reactions, together with fructosamine-modifying and -recognizing proteins are surveyed.
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Affiliation(s)
- Valeri V Mossine
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
| | - Thomas P Mawhinney
- Department of Biochemistry, University of Missouri, Columbia, MO, United States.
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Wang N, Liu F, Chen Y, Xie M, Gao B, Qiu Y, Lin L, Shi B, Chen F, He B. The role of rare earth elements and dietary intake in tongue cancer: a mediation analysis in southeast China. Front Public Health 2023; 11:1058013. [PMID: 37181707 PMCID: PMC10169683 DOI: 10.3389/fpubh.2023.1058013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 03/28/2023] [Indexed: 05/16/2023] Open
Abstract
Objective The current research aimed to examine how dietary intake and rare earth elements may affect the development of tongue cancer. Methods The serum levels of 10 rare earth elements (REEs) in 171 cases and 171 healthy matched controls were measured by inductively coupled plasma mass spectrometry (ICP-MS). The conditional logistic regression was used to examine the relationship between dietary intake, serum levels of 10 REEs, and tongue cancer. Mediation effect and multiplicative interaction analysis were then performed to estimate the potential contribution of REEs in dietary intake associated with tongue cancer. Results Compared with the control group, patients with tongue cancer consumed significantly less fish, seafood, fruit, green leafy vegetables, and non-green leafy vegetables, with higher serum praseodymium (Pr), dysprosium (Dy), and lanthanum (La) levels, and lower serum cerium (Ce) and scandium (Sc) levels. The interaction effect was observed between some REEs and food categories. Green vegetables' impact on the risk of tongue cancer is partially attributed to the La and Thorium (Th) elements (P < 0.05, the mediated proportion were 14.933% and 25.280%, respectively). The effect of non-green leafy vegetables for tongue cancer mediated via Pr, Dy, and Th (P < 0.05, the mediated proportion were 0.408%, 12.010%, and 8.969%, respectively), and the Sc components in seafood (P < 0.05, the mediated proportion was 26.120%) is partly responsible for their influence on the risk of tongue cancer. Conclusion The correlation between REEs and dietary intakes for tongue cancer is compact but intricate. Some REEs interact with food intake to influence tongue cancer, while others act as a mediator.
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Affiliation(s)
- Na Wang
- Fujian Provincial Key Laboratory of Environment Factors and Cancer, Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Fengqiong Liu
- Fujian Provincial Key Laboratory of Environment Factors and Cancer, Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Yujia Chen
- Fujian Provincial Key Laboratory of Environment Factors and Cancer, Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Manling Xie
- Laboratory Center, School of Public Health, The Major Subject of Environment and Health of Fujian Key Universities, Fujian Medical University, Fuzhou, Fujian, China
| | - Bingju Gao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yu Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Lisong Lin
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Bin Shi
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Fa Chen
- Fujian Provincial Key Laboratory of Environment Factors and Cancer, Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Baochang He
- Fujian Provincial Key Laboratory of Environment Factors and Cancer, Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
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Shimomura Y, Sobue T, Zha L, Kitamura T, Iwasaki M, Inoue M, Yamaji T, Tsugane S, Sawada N. Association between meat, fish, and fatty acid intake and incidence of acute myeloid leukemia and myelodysplastic syndrome: the Japan Public Health Center-based Prospective Study. Environ Health Prev Med 2023; 28:19. [PMID: 36878605 PMCID: PMC10025862 DOI: 10.1265/ehpm.22-00233] [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: 09/30/2022] [Accepted: 02/08/2023] [Indexed: 03/08/2023] Open
Abstract
BACKGROUND The association between meat, fish, or fatty acid intake and acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) has been investigated in a few studies, and the results were inconsistent. In addition, most studies are mainly based on the United States and European countries, in which the dietary patterns differ from that in Asia. Therefore, the risk of AML/MDS from meat, fish, or fatty acid intake in Asia requires further exploration. The aim of this study was to investigate the association between AML/MDS incidence and meat, fish, or fatty acid intake using the Japan Public Health Center-based prospective study. METHODS The present study included 93,366 participants who were eligible for analysis and followed up from the 5-year survey date until December 2012. We estimated the impact of their intake on AML/MDS incidence using a Cox proportional hazards model. RESULTS The study participants were followed up for 1,345,002 person-years. During the follow-up period, we identified 67 AML and 49 MDS cases. An increased intake of processed red meat was significantly associated with the incidence of AML/MDS, with a hazard ratio of 1.63 (95% confidence interval, 1.03-2.57) for the highest versus lowest tertile and a Ptrend of 0.04. Meanwhile, the intake of other foods and fatty acids was not associated with AML/MDS. CONCLUSION In this Japanese population, processed red meat was associated with an increased incidence of AML/MDS.
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Affiliation(s)
- Yoshimitsu Shimomura
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- Department of Hematology, Kobe City Hospital Organization Kobe City Medical Center General Hospital, Kobe, Japan
| | - Tomotaka Sobue
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Ling Zha
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tetsuhisa Kitamura
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Motoki Iwasaki
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Manami Inoue
- Division of Prevention, National Cancer Center Institute for Cancer Control, Tokyo, Japan
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Taiki Yamaji
- Division of Epidemiology, National Cancer Center Institute for Cancer Control, Tokyo, Japan
| | - Shoichiro Tsugane
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
- National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Norie Sawada
- Division of Cohort Research, National Cancer Center Institute for Cancer Control, Tokyo, Japan
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Bhattacharyya S, Law S. Environmental pollutant ENU induced leukemic NF-kB signaling amelioration by Eclipta alba in murine model. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:2435-2449. [PMID: 34420458 DOI: 10.1080/09603123.2021.1969341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 08/13/2021] [Indexed: 06/13/2023]
Abstract
Exposure to N-nitroso compounds (NOCs) in our environment via pesticides, tobacco, and smoked meat can be potentially carcinogenic. The induction of N-N' ethylnitrosourea (ENU), a genotoxic NOC, leads to leukemogenesis. The study aimed to explore the ameliorating effect of the Ayurvedic herb Eclipta alba on the bone marrow cells of ENU-induced leukemic mice. Eclipta alba is investigated for its anti-cancer effect on various cell lines, but never on haematological malignant models. Theefficacy of the extract was explored on leukemia by changes in body weight, survivability, peripheral blood hemogram, bone marrow cytological, histological, and cell culture studies pre-and post-treatment. The treated group revealed significant immunomodulation of the expressional profile of NF-kB family and IL-1β in marrow cells, by flow-cytometry, and immunofluorescence study. Through our experimental endeavour we depicted the cellular mechanism, signaling modality and tried to establish the anti-cancer potency of Eclipta alba on ENU-induced leukemia.
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Affiliation(s)
- Subhashree Bhattacharyya
- Stem Cell Research and Application Unit, Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata-West Bengal, India
| | - Sujata Law
- Stem Cell Research and Application Unit, Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata-West Bengal, India
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Kobets T, Smith BPC, Williams GM. Food-Borne Chemical Carcinogens and the Evidence for Human Cancer Risk. Foods 2022; 11:2828. [PMID: 36140952 PMCID: PMC9497933 DOI: 10.3390/foods11182828] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
Commonly consumed foods and beverages can contain chemicals with reported carcinogenic activity in rodent models. Moreover, exposures to some of these substances have been associated with increased cancer risks in humans. Food-borne carcinogens span a range of chemical classes and can arise from natural or anthropogenic sources, as well as form endogenously. Important considerations include the mechanism(s) of action (MoA), their relevance to human biology, and the level of exposure in diet. The MoAs of carcinogens have been classified as either DNA-reactive (genotoxic), involving covalent reaction with nuclear DNA, or epigenetic, involving molecular and cellular effects other than DNA reactivity. Carcinogens are generally present in food at low levels, resulting in low daily intakes, although there are some exceptions. Carcinogens of the DNA-reactive type produce effects at lower dosages than epigenetic carcinogens. Several food-related DNA-reactive carcinogens, including aflatoxins, aristolochic acid, benzene, benzo[a]pyrene and ethylene oxide, are recognized by the International Agency for Research on Cancer (IARC) as causes of human cancer. Of the epigenetic type, the only carcinogen considered to be associated with increased cancer in humans, although not from low-level food exposure, is dioxin (TCDD). Thus, DNA-reactive carcinogens in food represent a much greater risk than epigenetic carcinogens.
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Affiliation(s)
- Tetyana Kobets
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA
| | - Benjamin P. C. Smith
- Future Ready Food Safety Hub, Nanyang Technological University, Singapore 639798, Singapore
| | - Gary M. Williams
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY 10595, USA
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Shimomura Y, Sobue T, Zha L, Kitamura T, Iwasaki M, Inoue M, Yamaji T, Tsugane S, Sawada N. Association between Meat, Fish, and Fatty Acid Intake and Non-Hodgkin Lymphoma Incidence: The Japan Public Health Center-Based Prospective Study. J Nutr 2022; 152:1895-1906. [PMID: 35675313 DOI: 10.1093/jn/nxac122] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 03/17/2022] [Accepted: 06/01/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Meat, fish, and fatty acid intakes have been reported to be associated with non-Hodgkin lymphoma (NHL), although results have been inconclusive. We hypothesized that red meat and SFA intakes increase NHL risk, and fish and PUFA intakes decrease NHL risk. OBJECTIVES We investigated the association between NHL incidence and meat, fish, and various fatty acid type intakes using the Japan Public Health Center-based Prospective Study. METHODS The current cohort study included 93,366 participants aged 45-74 y who were eligible for analysis; they were followed up until December 2012. Participants answered an FFQ between 1995 and 1999. We analyzed the effects of meat, fish, total fatty acid, SFA, and PUFA intakes on NHL incidence using the Cox proportional hazard model. RESULTS The median age was 57 y (IQR: 51-63 y), and 46.5% of the participants were men. Participants were followed up for 1,345,001 person-years, and 230 patients with NHL were identified. Total fatty acid and SFA intakes were associated with an increased incidence of NHL, with an adjusted HR of 1.56 (95% CI: 1.04, 2.34 highest compared with lowest quartile; P-trend = 0.062), and 1.63 (95% CI: 1.11, 2.41; P-trend = 0.074), respectively. In subtype analysis, total fatty acid and SFA intakes were also associated with increased incidence of follicular lymphoma but were not significantly associated with diffuse large B-cell lymphoma. Conversely, total meat, processed meat, unprocessed meat, red meat, poultry, fish, MUFA, PUFA, n-3 (ω-3) PUFA, and n-6 (ω-6) PUFA intakes were not significantly associated with the incidence of NHL or its subtypes. CONCLUSIONS Total fatty acid and SFA intakes were associated with increased incidence of NHL in the Japanese adult population. Further large-scale studies are warranted to test whether fatty acid intakes affect the development of NHL.
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Affiliation(s)
- Yoshimitsu Shimomura
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan.,Department of Hematology, Kobe City Hospital Organization, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Tomotaka Sobue
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Ling Zha
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tetsuhisa Kitamura
- Department of Environmental Medicine and Population Science, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Motoki Iwasaki
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Manami Inoue
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Taiki Yamaji
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan.,National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Norie Sawada
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
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Bhattacharyya S, Law S. Environmental pollutant N-N'ethylnitrosourea-induced leukemic NLRP3 inflammasome activation and its amelioration by Eclipta prostrata and its active compound wedelolactone. ENVIRONMENTAL TOXICOLOGY 2022; 37:322-334. [PMID: 34726823 DOI: 10.1002/tox.23400] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 09/28/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
Environmental exposure of N-nitroso compounds (NOCs) from various sources like tobacco smoke, pesticides, smoked meat, and rubber manufacturing industries has been an alarming cause of carcinogenesis. Neonatal exposure to the carcinogenic N-N'ethylnitrosourea (ENU), a NOC has been established to cause leukemogenesis. Our world is constantly battling against cancer with consistent investigations of new anti-cancer therapeutics. Plant derived compounds have grasped worldwide attention of researchers for their promising anti-cancer potentials. Eclipta prostrata is one such ayurvedic herb, renowned for its anti-inflammatory properties. Currently, it has been explored in various cancer cell lines to establish its anti-cancer effect, but rarely in in-vivo cancer models. Wedelolactone (WDL), the major coumestan of E. prostrata is recognized as an inhibitor of IKK, a master regulator of the NF-kB inflammatory pathway. As persistent inflammation and activated inflammasome contribute to leukemogenesis, we tried to observe anti-leukemogenic efficacy of E. prostrata and its active compound WDL on the marrow cells of ENU induced experimental leukemic mice. Treatment groups were administered an oral gavage at a dose of 1200 mg/kg and 50 mg/kg b.w of crude extract and WDL respectively for 4 weeks. Various parameters like hemogram, survivability, cytological and histological investigations, migration assay, cell culture, flowcytometry and confocal microscopy were taken into consideration pre- and post-treatment. Interestingly, the plant concoction portrayed maximum effects in comparison to WDL alone. The study suggests E. prostrata and WDL as vital complementary adjuncts for anti-inflammasome mechanism in ENU-induced leukemia.
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Affiliation(s)
- Subhashree Bhattacharyya
- Stem Cell Research and Application Unit, Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, West Bengal, India
| | - Sujata Law
- Stem Cell Research and Application Unit, Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, West Bengal, India
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Salted fish and processed foods intake and nasopharyngeal carcinoma risk: a dose–response meta-analysis of observational studies. Eur Arch Otorhinolaryngol 2022; 279:2501-2509. [DOI: 10.1007/s00405-021-07210-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/29/2021] [Indexed: 11/03/2022]
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van Breda SG, Mathijs K, Pieters H, Sági‐Kiss V, Kuhnle GG, Georgiadis P, Saccani G, Parolari G, Virgili R, Sinha R, Hemke G, Hung Y, Verbeke W, Masclee AA, Vleugels‐Simon CB, van Bodegraven AA, de Kok TM. Replacement of Nitrite in Meat Products by Natural Bioactive Compounds Results in Reduced Exposure to N-Nitroso Compounds: The PHYTOME Project. Mol Nutr Food Res 2021; 65:e2001214. [PMID: 34382747 PMCID: PMC8530897 DOI: 10.1002/mnfr.202001214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 07/16/2021] [Indexed: 11/07/2022]
Abstract
SCOPE It has been proposed that endogenously form N-nitroso compounds (NOCs) are partly responsible for the link between red meat consumption and colorectal cancer (CRC) risk. As nitrite has been indicated as critical factor in the formation of NOCs, the impact of replacing the additive sodium nitrite (E250) by botanical extracts in the PHYTOME project is evaluated. METHOD AND RESULTS A human dietary intervention study is conducted in which healthy subjects consume 300 g of meat for 2 weeks, in subsequent order: conventional processed red meat, white meat, and processed red meat with standard or reduced levels of nitrite and added phytochemicals. Consumption of red meat products enriched with phytochemicals leads to a significant reduction in the faecal excretion of NOCs, as compared to traditionally processed red meat products. Gene expression changes identify cell proliferation as main affects molecular mechanism. High nitrate levels in drinking water in combination with processed red meat intake further stimulates NOC formation, an effect that could be mitigated by replacement of E250 by natural plant extracts. CONCLUSION These findings suggest that addition of natural extracts to conventionally processed red meat products may help to reduce CRC risk, which is mechanistically support by gene expression analyses.
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Affiliation(s)
- Simone G. van Breda
- Department of ToxicogenomicsGROW‐school for Oncology and Developmental BiologyMaastricht University Medical CenterP.O. Box 616, 6200 MD Maastrichtthe Netherlands
| | - Karen Mathijs
- Department of ToxicogenomicsGROW‐school for Oncology and Developmental BiologyMaastricht University Medical CenterP.O. Box 616, 6200 MD Maastrichtthe Netherlands
| | - Harm‐Jan Pieters
- Department of ToxicogenomicsGROW‐school for Oncology and Developmental BiologyMaastricht University Medical CenterP.O. Box 616, 6200 MD Maastrichtthe Netherlands
| | - Virág Sági‐Kiss
- Department of Food & Nutritional SciencesUniversity of ReadingReadingUK
| | - Gunter G. Kuhnle
- Department of Food & Nutritional SciencesUniversity of ReadingReadingUK
| | - Panagiotis Georgiadis
- National Hellenic Research FoundationInstitute of BiologyMedicinal Chemistry and BiotechnologyAthensGreece
| | - Giovanna Saccani
- SSICA‐Experimental Station for the Food Preserving IndustryParmaItaly
| | - Giovanni Parolari
- SSICA‐Experimental Station for the Food Preserving IndustryParmaItaly
| | - Roberta Virgili
- SSICA‐Experimental Station for the Food Preserving IndustryParmaItaly
| | - Rashmi Sinha
- Division of Cancer Epidemiology & GeneticsNational Cancer InstituteNational Institutes of HealthBethesdaMDUSA
| | - Gert Hemke
- Hemke NutriconsultPrins Clauslaan 70, 5684 GB BestThe Netherlands
| | - Yung Hung
- Department of Agricultural EconomicsGhent UniversityCoupure links 653Gent9000Belgium
| | - Wim Verbeke
- Department of Agricultural EconomicsGhent UniversityCoupure links 653Gent9000Belgium
| | - Ad A. Masclee
- Division of Gastroenterology‐HepatologyDepartment of Internal MedicineMaastricht University Medical CenterMaastrichtThe Netherlands
| | | | | | - Theo M. de Kok
- Department of ToxicogenomicsGROW‐school for Oncology and Developmental BiologyMaastricht University Medical CenterP.O. Box 616, 6200 MD Maastrichtthe Netherlands
| | - the PHYTOME consortium
- Department of ToxicogenomicsGROW‐school for Oncology and Developmental BiologyMaastricht University Medical CenterP.O. Box 616, 6200 MD Maastrichtthe Netherlands
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Bulnes S, Murueta-Goyena A, Lafuente JV. Differential exposure to N-ethyl N-nitrosourea during pregnancy is relevant to the induction of glioma and PNSTs in the brain. Neurotoxicol Teratol 2021; 86:106998. [PMID: 34048896 DOI: 10.1016/j.ntt.2021.106998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 05/12/2021] [Accepted: 05/21/2021] [Indexed: 12/15/2022]
Abstract
Exposure to N-nitroso compounds (NOCs) during pregnancy has been associated with an increase in brain tumors in the progeny. This study investigated the brain tumorigenic effect of N-ethyl N-nitrosourea (ENU) after differential exposure of rats during pregnancy. Sprague Dawley rats were exposed to a single dose of ENU (80 mg/kg) in three different circumstances: 1) at first, second or third week of gestation; 2) at the 15th embryonic day (E15) in consecutive litters and 3) at E15 in three successive generations. Location and characterization of the offspring's brain tumors were performed by magnetic resonance imaging and histopathological studies. Finally, tumor incidence and latency and the animals' survival were recorded. ENU-exposure in the last two weeks of pregnancy induced intracranial tumors in over 70% of the offspring rats, these being mainly gliomas with some peripheral nerve sheath tumors (PNSTs). Tumors appeared in young adults; glioma-like small multifocal neoplasias converged on large glioblastomas in senescence and PNSTs in the sheath of the trigeminal nerve, extending to cover the brain convexity. ENU-exposure at E15 in subsequent pregnancies lead to an increase in glioma and PNST incidence. However, consecutive generational ENU-exposure (E15) decreased the animals' survival due to an early onset of both types of tumors. Moreover, PNST presented an inheritable component because progeny, which were not themselves exposed to ENU but whose progenitors were, developed PNSTs. Our results suggest that repeated exposure to ENU later in pregnancy and in successive generations favours the development of intracranial gliomas and PNSTs in the offspring.
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Affiliation(s)
- Susana Bulnes
- LaNCE, Department of Neuroscience, University of the Basque Country, (UPV/EHU), Leioa, Spain; Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.
| | - Ane Murueta-Goyena
- Department of Preventative Medicine and Public Health, University of the Basque Country, (UPV/EHU), Leioa, Spain
| | - José Vicente Lafuente
- LaNCE, Department of Neuroscience, University of the Basque Country, (UPV/EHU), Leioa, Spain; Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
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13
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Yu L, Zongxin L, Qiang L. A sensitive N-nitroso- N-methylurea sensor based on graphene-like BC3 and NC3 layers. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1790682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Liao Yu
- Business School, Sichuan University, Chengdu, People’s Republic of China
| | - Liu Zongxin
- West China Hospital, Sichuan University, Chengdu, People’s Republic of China
| | - Li Qiang
- The University of Tulsa, Tulsa, OK, USA
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14
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Cai H, Sobue T, Kitamura T, Ishihara J, Sawada N, Iwasaki M, Shimazu T, Tsugane S. Association between meat and saturated fatty acid intake and lung cancer risk: The Japan Public Health Center-based prospective study. Int J Cancer 2020; 147:3019-3028. [PMID: 32441315 DOI: 10.1002/ijc.33112] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 04/18/2020] [Accepted: 05/12/2020] [Indexed: 11/11/2022]
Abstract
Red meat or saturated fatty acid (SFA) intake has been reported to increase lung cancer (LC) risk in several western countries. However, in Asia, studies on the relationship between meat and SFA intake with LC incidence are still relatively insufficient, and their conclusions are inconsistent. We investigated the association of meat and SFA intake with LC incidence in a population-based prospective cohort study in Japan. Cox regression was used to estimate the hazard ratio (HR) and 95% confidence interval (CI) for LC risk according to meat intake and SFA intake. A total of 73 187 participants (32 934 men and 40 253 women) aged 45 to 74 years participated in our study. During the follow-up period of 1 151 839 person-years (median, 16.0 year) from 1995 to 2013 for Cohort I and from 1998 to 2013 for Cohort II, 1315 (901 men and 414 women) newly diagnosed cases of LC were identified. In men, we found an adverse association between total red meat intake (HR and 95% CI: 1.25 [1.02-1.53]; Ptrend = .008) and LC risk. Additionally, borderline statistically significant elevated risks of LC were seen with high intake of unprocessed red meat and processed red meat. However, no positive association between total red meat intake and LC risk was observed in women. In contrast, poultry and fish intake were not associated with LC risk in either men or women. We concluded that a high total intake of total red meat was associated with moderately elevated LC risk in men.
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Affiliation(s)
- Honglin Cai
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tomotaka Sobue
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tetsuhisa Kitamura
- Department of Environmental Medicine and Population Sciences, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Junko Ishihara
- Department of Food and Life Science, Azabu University, Sagamihara, Kanagawa, Japan
| | - Norie Sawada
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Motoki Iwasaki
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Taichi Shimazu
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Shoichiro Tsugane
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
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15
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Cuparencu C, Praticó G, Hemeryck LY, Sri Harsha PSC, Noerman S, Rombouts C, Xi M, Vanhaecke L, Hanhineva K, Brennan L, Dragsted LO. Biomarkers of meat and seafood intake: an extensive literature review. GENES & NUTRITION 2019; 14:35. [PMID: 31908682 PMCID: PMC6937850 DOI: 10.1186/s12263-019-0656-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 11/12/2019] [Indexed: 01/16/2023]
Abstract
Meat, including fish and shellfish, represents a valuable constituent of most balanced diets. Consumption of different types of meat and fish has been associated with both beneficial and adverse health effects. While white meats and fish are generally associated with positive health outcomes, red and especially processed meats have been associated with colorectal cancer and other diseases. The contribution of these foods to the development or prevention of chronic diseases is still not fully elucidated. One of the main problems is the difficulty in properly evaluating meat intake, as the existing self-reporting tools for dietary assessment may be imprecise and therefore affected by systematic and random errors. Dietary biomarkers measured in biological fluids have been proposed as possible objective measurements of the actual intake of specific foods and as a support for classical assessment methods. Good biomarkers for meat intake should reflect total dietary intake of meat, independent of source or processing and should be able to differentiate meat consumption from that of other protein-rich foods; alternatively, meat intake biomarkers should be specific to each of the different meat sources (e.g., red vs. white; fish, bird, or mammal) and/or cooking methods. In this paper, we present a systematic investigation of the scientific literature while providing a comprehensive overview of the possible biomarker(s) for the intake of different types of meat, including fish and shellfish, and processed and heated meats according to published guidelines for biomarker reviews (BFIrev). The most promising biomarkers are further validated for their usefulness for dietary assessment by published validation criteria.
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Affiliation(s)
- Cătălina Cuparencu
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Rolighedsvej 30, 1958 Frederiksberg C, Denmark
| | - Giulia Praticó
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Rolighedsvej 30, 1958 Frederiksberg C, Denmark
| | - Lieselot Y. Hemeryck
- Department of Veterinary Public Health & Food Safety, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Pedapati S. C. Sri Harsha
- School of Agriculture and Food Science, Institute of Food & Health, University College Dublin, Belfield 4, Dublin, Ireland
| | - Stefania Noerman
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Yliopistonranta 1, 70210 Kuopio, Finland
| | - Caroline Rombouts
- Department of Veterinary Public Health & Food Safety, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Muyao Xi
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Rolighedsvej 30, 1958 Frederiksberg C, Denmark
| | - Lynn Vanhaecke
- Department of Veterinary Public Health & Food Safety, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Kati Hanhineva
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Yliopistonranta 1, 70210 Kuopio, Finland
| | - Lorraine Brennan
- School of Agriculture and Food Science, Institute of Food & Health, University College Dublin, Belfield 4, Dublin, Ireland
| | - Lars O. Dragsted
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Rolighedsvej 30, 1958 Frederiksberg C, Denmark
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16
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Inami K, Asada Y, Harada T, Okayama Y, Usui N, Mochizuki M. Antimutagenic components in Spatholobus suberectus Dunn against N-methyl- N-nitrosourea. Genes Environ 2019; 41:22. [PMID: 31890055 PMCID: PMC6907206 DOI: 10.1186/s41021-019-0137-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 11/25/2019] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND An extract from Spatholobus suberectus (S. suberectus) Dunn has been reported to show potent antimutagenic effects against N-alkyl-N-nitrosoureas in umu screening. The aim of this study was to identify the antimutagenic components from extracts of S. suberectus against N-methyl-N-nitrosourea (MNU) in the Ames assay with Salmonella typhimurium strain TA1535 and to elucidate the antimutagenic mechanism of the flavonoids. RESULTS From the ethyl acetate fraction obtained from fractionation of the methanol extract of S. suberectus Dunn, medicarpin, formononetin and isoliquiritigenin were successfully isolated through a combination of normal- and reversed-phase chromatography. Genistein and naringenin, which were already reported to be contained in S. suberectus Dunn, were also tested for their antimutagenicity towards MNU, along with formononetin, isoliquiritigenin and medicarpin. Our results demonstrated that genistein, isoliquiritigenin, medicarpin and naringenin were antimutagenic against MNU without showing cytotoxicity. MNU is reported to cause not only DNA alkylation but also induce reactive oxygen species. The hydroxyl radical scavenging capacity of the flavonoids was correlated with the antimutagenic capacity, indicating that the hydroxyl radical scavenging activity was involved in their antimutagenicity towards MNU. CONCLUSIONS It is important to prevent DNA damage by N-nitrosamines for cancer chemoprevention. Genistein, isoliquiritigenin, medicarpin and naringenin were demonstrated to possess an antigenotoxic effects against carcinogenic MNU due to their radical scavenging activity.
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Affiliation(s)
- Keiko Inami
- Faculty of Pharmaceutical Sciences, Sanyo-onoda City University, Daigakudo-ri 1-1-1, Sanyo-onoda-shi, Yamaguchi, 756-0884 Japan
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Noda-shi, Chiba, 278-8510 Japan
| | - Yoshihisa Asada
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Noda-shi, Chiba, 278-8510 Japan
| | - Takumi Harada
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Noda-shi, Chiba, 278-8510 Japan
| | - Yuta Okayama
- Faculty of Pharmaceutical Sciences, Sanyo-onoda City University, Daigakudo-ri 1-1-1, Sanyo-onoda-shi, Yamaguchi, 756-0884 Japan
| | - Noriko Usui
- Faculty of Pharmaceutical Sciences, Sanyo-onoda City University, Daigakudo-ri 1-1-1, Sanyo-onoda-shi, Yamaguchi, 756-0884 Japan
| | - Masataka Mochizuki
- Faculty of Pharmaceutical Sciences, Sanyo-onoda City University, Daigakudo-ri 1-1-1, Sanyo-onoda-shi, Yamaguchi, 756-0884 Japan
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Noda-shi, Chiba, 278-8510 Japan
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17
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Zhao L, Li YC, Wu JP, Zhao YJ, Wang RB, Jiang M, Song QK. Increased risk of esophageal squamous cell carcinoma associated with frequent and long-term consumption of salted meat and salted fat. J Int Med Res 2019; 47:3841-3849. [PMID: 31304826 PMCID: PMC6726786 DOI: 10.1177/0300060519859729] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 06/05/2019] [Indexed: 12/18/2022] Open
Abstract
Objective This study aimed to investigate the association between the consumption of salted meat and salted fat and esophageal cancer risk among individuals with normal esophageal mucosa or esophagitis. Methods This case-control study enrolled 216 individuals from Yanting County. Information on the consumption of salted meat and salted fat was collected using a food-frequency questionnaire validated among Yanting people. Results Higher intake frequencies (≥once a week) of salted meat and salted fat were associated with 2.40-fold and 7.37-fold increased risks of esophageal cancer among individuals with normal esophageal mucosa, while long-term intakes (≥6 months) increased the risks by 6.87-fold and 85.45-fold, respectively. Similarly, the odds ratios (ORs) of patients with esophagitis developing esophageal cancer from frequent intakes of salted meat and salted fat were 6.48 and 5.05, respectively, and the ORs associated with long-term intakes were 44.38 and 74.90, respectively. Conclusions Frequent and long-term consumption of salted meat and salted fat could increase the risk of esophageal cancer in individuals from Yanting with normal esophageal mucosa or esophagitis. Efforts should thus be made to reduce the consumption of these foods among people in this region.
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Affiliation(s)
- Lin Zhao
- Department of Medical Records and Statistics, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yu-Chen Li
- Translational Brain Cancer Research Laboratory, QIMR Berghofer Medical Research Institute, School of Medicine, The University of Queensland, Herston, Queensland, Australia
| | - Jiang-Ping Wu
- Department of Medical Oncology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Yan-Jie Zhao
- Department of Medical Oncology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Rui-Bin Wang
- Emergency Department, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Min Jiang
- Department of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Qing-Kun Song
- Department of Clinical Epidemiology and Evidence-based Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Cancer Therapeutic Vaccine, Beijing, China
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18
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Sheweita SA, Almasmari AA, El-Banna SG. Tramadol-induced hepato- and nephrotoxicity in rats: Role of Curcumin and Gallic acid as antioxidants. PLoS One 2018; 13:e0202110. [PMID: 30110401 PMCID: PMC6093657 DOI: 10.1371/journal.pone.0202110] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 07/27/2018] [Indexed: 11/18/2022] Open
Abstract
Tramadol is an analgesic used to treat moderate to severe pain caused by cancer, osteoarthritis, and other musculoskeletal diseases. Cytochrome P450 system metabolizes tramadol and induces oxidative stress in different organs. Therefore, the present study aims at investigating the changes in the activities and the protein expressions of CYPs isozymes (2E1, 3A4, 2B1/2), antioxidants status, free radicals levels after pretreatment of rats with Curcumin and/or Gallic as single- and/or repeated-doses before administration of tramadol. In repeated-dose treatments of rats with tramadol, the activities of cytochrome P450, cytochrome b5, and NADPH-cytochrome-c-reductase, and the antioxidant enzymes including glutathione reductase, glutathione peroxidase, glutathione S-transferase, catalase, superoxide dismutase, and levels of glutathione were inhibited in the liver and the kidney of rats. Interestingly, such changes caused by tramadol restored to their normal levels after pretreatment of rats with either Curcumin and/or Gallic acid. On the other hand, repeated-dose treatment of rats with tramadol increased the activities of both dimethylnitrosamine N-demethylase I (DMN-dI), and aryl hydrocarbon hydroxylase (AHH) compared to the control group. However, pretreatment of rats with Curcumin and/or Gallic acid prior to administration of tramadol restored the inhibited DMN-dI activity and its protein expression (CYP 2E1) to their normal levels. On the other hand, tramadol inhibited the activity of ethoxycoumarin O-deethylase (ECOD) and suppressed its protein marker expression (CYP2B1/2), whereas Curcumin, Gallic acid and/or their mixture restored such changes to their normal levels. In conclusion, Curcumin and/or Gallic acid alleviated the adverse effects caused by tramadol. In addition, patients should be advice to take Curcumin and/or Gallic acid prior to tramadol treatment to alleviate the hepatic and renal toxicities caused by tramadol.
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Affiliation(s)
- Salah A. Sheweita
- Department of Biotechnology, Institute of Graduate Studies and Research, Alexandria University, Alexandra, Egypt
| | - Ainour A. Almasmari
- Department of Biotechnology, Institute of Graduate Studies and Research, Alexandria University, Alexandra, Egypt
| | - Sabah G. El-Banna
- Department of Environmental Studies, Institute of Graduate Studies and Research, Alexandria University, Alexandra, Egypt
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19
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Ward MH, Jones RR, Brender JD, de Kok TM, Weyer PJ, Nolan BT, Villanueva CM, van Breda SG. Drinking Water Nitrate and Human Health: An Updated Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E1557. [PMID: 30041450 PMCID: PMC6068531 DOI: 10.3390/ijerph15071557] [Citation(s) in RCA: 395] [Impact Index Per Article: 65.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/10/2018] [Accepted: 07/14/2018] [Indexed: 02/07/2023]
Abstract
Nitrate levels in our water resources have increased in many areas of the world largely due to applications of inorganic fertilizer and animal manure in agricultural areas. The regulatory limit for nitrate in public drinking water supplies was set to protect against infant methemoglobinemia, but other health effects were not considered. Risk of specific cancers and birth defects may be increased when nitrate is ingested under conditions that increase formation of N-nitroso compounds. We previously reviewed epidemiologic studies before 2005 of nitrate intake from drinking water and cancer, adverse reproductive outcomes and other health effects. Since that review, more than 30 epidemiologic studies have evaluated drinking water nitrate and these outcomes. The most common endpoints studied were colorectal cancer, bladder, and breast cancer (three studies each), and thyroid disease (four studies). Considering all studies, the strongest evidence for a relationship between drinking water nitrate ingestion and adverse health outcomes (besides methemoglobinemia) is for colorectal cancer, thyroid disease, and neural tube defects. Many studies observed increased risk with ingestion of water nitrate levels that were below regulatory limits. Future studies of these and other health outcomes should include improved exposure assessment and accurate characterization of individual factors that affect endogenous nitrosation.
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Affiliation(s)
- Mary H Ward
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Dr. Room 6E138, Rockville, MD 20850, USA.
| | - Rena R Jones
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Dr. Room 6E138, Rockville, MD 20850, USA.
| | - Jean D Brender
- Department of Epidemiology and Biostatistics, Texas A&M University, School of Public Health, College Station, TX 77843, USA.
| | - Theo M de Kok
- Department of Toxicogenomics, GROW-school for Oncology and Developmental Biology, Maastricht University Medical Center, P.O Box 616, 6200 MD Maastricht, The Netherlands.
| | - Peter J Weyer
- The Center for Health Effects of Environmental Contamination, The University of Iowa, 455 Van Allen Hall, Iowa City, IA 52242, USA.
| | - Bernard T Nolan
- U.S. Geological Survey, Water Mission Area, National Water Quality Program, 12201 Sunrise Valley Drive, Reston, VA 20192, USA.
| | - Cristina M Villanueva
- ISGlobal, 08003 Barcelona, Spain.
- IMIM (Hospital del Mar Medical Research Institute), 08003 Barcelona, Spain.
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain.
- CIBER Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain.
| | - Simone G van Breda
- Department of Toxicogenomics, GROW-school for Oncology and Developmental Biology, Maastricht University Medical Center, P.O Box 616, 6200 MD Maastricht, The Netherlands.
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20
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Rohrmann S, Cabaset S, Linseisen J. [Not Available]. PRAXIS 2017; 106:871-876. [PMID: 28795630 DOI: 10.1024/1661-8157/a002747] [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: 06/07/2023]
Abstract
Zusammenfassung.In der Schweiz werden pro Tag im Schnitt 110 g Fleisch verzehrt, darunter 40 g verarbeitetes Fleisch. Ein hoher Verzehr besonders von verarbeitetem Fleisch wurde von der International Agency for Research on Cancer als krebserregend eingestuft, wobei die Evidenz vor allem auf dem Zusammenhang mit Dickdarmkrebs beruht. Als mögliche Mechanismen gelten eine hohe Aufnahme von Kochsalz (im Zusammenhang mit Magenkrebs), die Aufnahme sowie die endogene Bildung von N-Nitroso-Verbindungen (teilweise gefördert durch den hohen Gehalt von Hämeisen in rotem Fleisch) und die Bildung von polyzyklischen Kohlenwasserstoffen und heterozyklischen aromatischen Amine bei der Fleischzubereitung. Die Schweizerische Gesellschaft für Ernährung empfiehlt aus diesem Grund, lediglich 2–3 Portionen Fleisch und Fleischprodukte pro Woche zu verzehren.
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Affiliation(s)
- Sabine Rohrmann
- 1 Abteilung Epidemiologie chronischer Krankheiten, Institut für Epidemiologie, Biostatistik und Prävention, Universität Zürich
- 2 Krebsregister der Kantone Zürich und Zug, Zürich
| | - Sophie Cabaset
- 1 Abteilung Epidemiologie chronischer Krankheiten, Institut für Epidemiologie, Biostatistik und Prävention, Universität Zürich
| | - Jakob Linseisen
- 3 Institut für Epidemiologie II, Helmholtz Zentrum München, Neuherberg, Deutschland
- 4 Lehrstuhl für Epidemiologie, Ludwig-Maximilians-Universität München, UNIKA-T, Augsburg, Deutschland
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21
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Demeyer D, Mertens B, De Smet S, Ulens M. Mechanisms Linking Colorectal Cancer to the Consumption of (Processed) Red Meat: A Review. Crit Rev Food Sci Nutr 2017; 56:2747-66. [PMID: 25975275 DOI: 10.1080/10408398.2013.873886] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Colorectal cancer (CRC) is the third most commonly diagnosed cancer in the world. The vast majority of CRC cases have been linked to environmental causes rather than to heritable genetic changes. Over the last decades, epidemiological evidence linking the consumption of red and, more convincingly, of processed red meat to CRC has accumulated. In parallel, hypotheses on carcinogenic mechanisms underlying an association between CRC and the intake of red and processed red meat have been proposed and investigated in biological studies. The hypotheses that have received most attention until now include (1) the presence of polycyclic aromatic hydrocarbons and heterocyclic aromatic amines, two groups of compounds recognized as carcinogenic, (2) the enhancing effect of (nitrosyl)heme on the formation of carcinogenic N-nitroso compounds and lipid peroxidation. However, none of these hypotheses completely explains the link between red and processed red meat intake and the CRC risk. Consequently, scientists have proposed additional mechanisms or refined their hypotheses. This review first briefly summarizes the development of CRC followed by an in-depth overview and critical discussion of the different potential carcinogenic mechanisms underlying the increased CRC risk associated with the consumption of red and processed red meat.
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Affiliation(s)
- Daniel Demeyer
- a Superior Health Council , Brussels , Belgium.,b Laboratory for Animal Nutrition and Animal Product Quality , Faculty of Bioscience Engineering, Ghent University , Melle , Belgium
| | - Birgit Mertens
- a Superior Health Council , Brussels , Belgium.,c Program Toxicology, Department of Food , Medicines and Consumer Safety, Scientific Institute of Public Health (Site Elsene) , Brussels , Belgium
| | - Stefaan De Smet
- a Superior Health Council , Brussels , Belgium.,b Laboratory for Animal Nutrition and Animal Product Quality , Faculty of Bioscience Engineering, Ghent University , Melle , Belgium
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22
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Inami K, Mine Y, Tatsuzaki J, Mori C, Mochizuki M. Isolation and characterization of antimutagenic components of Glycyrrhiza aspera against N-methyl- N-nitrosourea. Genes Environ 2017; 39:5. [PMID: 28074112 PMCID: PMC5217204 DOI: 10.1186/s41021-016-0068-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 12/08/2016] [Indexed: 01/13/2023] Open
Abstract
Background A powdered ethanolic extract of Glycyrrhiza aspera root exhibits antimutagenic activity against N-methyl-N-nitrosourea (MNU) based on the Ames assay with Salmonella typhimurium TA1535. The aim of this study was to identify the antimutagenic components of the powdered ethanolic extract of G. aspera root. Results The powdered ethanolic extract of G. aspera root was sequentially suspended in n-hexane, carbon tetrachloride, dichloromethane, ethyl acetate, and ethanol, and each solvent soluble fraction and the residue were assayed for antimutagenic activity against MNU in S. typhimurium TA1535. The dichloromethane soluble fraction exhibited the highest antimutagenicity and was fractionated several times by silica gel chromatography. The fraction with the highest antimutagenic activity was further purified using HPLC, and the fractions were assayed for antimutagenicity against MNU in S. typhimurium TA1535. Finally, five components with antimutagenic activity against MNU were identified as glyurallin A, glyasperin B, licoricidin, 1-methoxyphaseollin, and licoisoflavone B. Conclusions The five components were demonstrated to possess an antigenotoxic effect against carcinogenic MNU for the first time. It is important to prevent DNA damage by N-nitrosamines for cancer chemoprevention. Electronic supplementary material The online version of this article (doi:10.1186/s41021-016-0068-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Keiko Inami
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Yamazaki 2641, Noda, Chiba 278-8510 Japan
| | - Yusuke Mine
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Yamazaki 2641, Noda, Chiba 278-8510 Japan
| | | | | | - Masataka Mochizuki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Yamazaki 2641, Noda, Chiba 278-8510 Japan
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Bahadoran Z, Mirmiran P, Ghasemi A, Carlström M, Azizi F, Hadaegh F. Vitamin C intake modify the impact of dietary nitrite on the incidence of type 2 diabetes: A 6-year follow-up in Tehran Lipid and Glucose Study. Nitric Oxide 2016; 62:24-31. [PMID: 27916563 DOI: 10.1016/j.niox.2016.11.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 10/20/2016] [Accepted: 11/30/2016] [Indexed: 12/21/2022]
Abstract
BACKGROUND There is no epidemiological study on the association between dietary nitrate (NO3) and nitrite (NO2) and intakes and the risk of type 2 diabetes (T2D). OBJECTIVE The aim of this study was therefore to examine the potential effect of dietary NO3 and NO2 on the occurrence of T2D. DESIGN This longitudinal study was conducted within the framework of the Tehran Lipid and Glucose Study (TLGS) on 2139 T2D-free adults, aged 20-70 years, followed for a median of 5.8 y. Dietary intakes of NO3 and NO2 were estimated using a 168-food items validate semi-quantitative food frequency questionnaire, at baseline. Multivariate Hazard Ratios (HR) and 95% confidence intervals (CI), adjusted for diabetes risk score (DRS), and dietary intakes of fat, fiber and vitamin C, were calculated for residual energy-adjusted NO3 and NO2 intakes. Since significant interaction (P = 0.024) was found between NO2 and vitamin C intakes in the multivariable model, stratified analyses were done for < and ≥ median vitamin C intakes. RESULTS Median (inter quartile range; IQR) daily intake of NO3 and NO2 were 410 mg/d (343-499) and 8.77 mg/d (7.53-10.2). An increased risk of T2D was observed among participants who had higher intake of total and animal-based NO2 in participants who had low vitamin C intake (HR = 2.43, 95% CI = 1.45-4.05, HR = 1.88, 95% CI = 1.12-3.15, respectively). We found no significant association between NO3 in overall, and plant- and animal sources as well, with the risk of T2D. Plant-derived NO2 was also unrelated to incidence of T2D. CONCLUSION Our findings indicated that higher intakes of total and animal-based NO2 may be an independent dietary risk factor for development of T2D in subjects with lower vitamin C intakes.
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Affiliation(s)
- Zahra Bahadoran
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Parvin Mirmiran
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Asghar Ghasemi
- Endocrine Physiology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mattias Carlström
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzad Hadaegh
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Iran.
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Czerwonka M, Tokarz A. Iron in red meat-friend or foe. Meat Sci 2016; 123:157-165. [PMID: 27744145 DOI: 10.1016/j.meatsci.2016.09.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 07/29/2016] [Accepted: 09/27/2016] [Indexed: 12/28/2022]
Abstract
In developed countries, due to high content and bioavailability, red and processed meats are the main sources of iron in the diet. Adequate intake of this nutrient is essential for the proper development and functioning of the human body, and its deficiencies are associated mainly with the occurrence of anemia, which is one of the most widespread nutritional problems in the world. However, excessive intake of iron can be detrimental to health. Studies have shown that high consumption of red meat and its products, and thereby iron, particularly in the form of heme, increases the risk of non-communicable diseases, including cancers, type II diabetes and cardiovascular disease. Due to the high nutritional value, the presence of red meat in the diet is preferable, but according to World Cancer Research Fund International its consumption should not exceed 500g per week. Furthermore, there are several potential ways to suppress the toxic effects of heme iron in the diet.
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Affiliation(s)
- Małgorzata Czerwonka
- Department of Bromatology, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, 1 Banacha, 02-097 Warsaw, Poland.
| | - Andrzej Tokarz
- Department of Bromatology, Faculty of Pharmacy with the Laboratory Medicine Division, Medical University of Warsaw, 1 Banacha, 02-097 Warsaw, Poland
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Li F, Duan F, Zhao X, Song C, Cui S, Dai L. Red Meat and Processed Meat Consumption and Nasopharyngeal Carcinoma Risk: A Dose-response Meta-analysis of Observational Studies. Nutr Cancer 2016; 68:1034-43. [PMID: 27367552 DOI: 10.1080/01635581.2016.1192200] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The purpose of this study is to clarify and quantify the potential dose-response association between the intake of total red and total processed meat and risk of nasopharyngeal carcinoma (NPC). Relevant studies were identified by searching PubMed, EMBASE, and Chinese databases (CNKI and Wanfang). The summary relative risk (RR) with 95% confidence interval (95%CI) was calculated. A total of 15 independent studies with 12,735 subjects were identified. Compared with the low-rank intake, the summary RR of NPC was 1.35 (95%CI, 1.21-1.51) for total red meat and 1.46 (95%CI, 1.34-1.64) for total processed meat. For the moderate-rank intake, the summary RR of NPC was 1.54 (95%CI, 1.36-1.79) for total red meat and 1.59 (95%CI, 1.3-1.90) for total processed meat. The summary RR for high-rank intake was 1.71 (95%CI, 1.14-2.55) for total red meat and 2.11 (95%CI, 1.31-3.42) for total processed meat. The combined estimates showed obvious evidence of statistically significant association between total red and total processed meat consumption dose and risk of NPC (Ptrend< 0.01). In conclusion, our data suggest that a high intake of total red or total processed meat is associated with a significantly increased risk of NPC.
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Affiliation(s)
- Fuqin Li
- a Department of Hospital Infection Management , The First Affiliated Hospital of Zhengzhou University , Zhengzhou, Henan , China
| | - Fujiao Duan
- b Department of Nosocomial Infection Management , Affiliated Cancer Hospital of Zhengzhou University , Zhengzhou, Henan China
| | - Xia Zhao
- a Department of Hospital Infection Management , The First Affiliated Hospital of Zhengzhou University , Zhengzhou, Henan , China
| | - Chunhua Song
- c Department of Epidemiology , College of Public Health, Zhengzhou University , Zhengzhou, Henan , China.,d Henan Key Laboratory of Tumor Epidemiology , Zhengzhou, Henan , China
| | - Shuli Cui
- e College of Professional Study, Northeastern University , Boston , Massachusetts , USA
| | - Liping Dai
- c Department of Epidemiology , College of Public Health, Zhengzhou University , Zhengzhou, Henan , China.,d Henan Key Laboratory of Tumor Epidemiology , Zhengzhou, Henan , China
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26
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Zhou L, Zahid M, Anwar MM, Pennington KL, Cohen SM, Wisecarver JL, Shostrom V, Mirvish SS. Suggestive evidence for the induction of colonic aberrant crypts in mice fed sodium nitrite. Nutr Cancer 2015; 68:105-12. [DOI: 10.1080/01635581.2016.1102298] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abstract
Meat is a food rich in protein, minerals such as iron and zinc as well as a variety of vitamins, in particular B vitamins. However, the content of cholesterol and saturated fat is higher than in some other food groups. Processed meat is defined as products usually made of red meat that are cured, salted or smoked (e.g. ham or bacon) in order to improve the durability of the food and/or to improve colour and taste, and often contain a high amount of minced fatty tissue (e.g. sausages). Hence, high consumption of processed foods may lead to an increased intake of saturated fats, cholesterol, salt, nitrite, haem iron, polycyclic aromatic hydrocarbons, and, depending upon the chosen food preparation method, also heterocyclic amines. Several large cohort studies have shown that a high consumption of processed (red) meat is related to increased overall and cause-specific mortality. A meta-analysis of nine cohort studies observed a higher mortality among high consumers of processed red meat (relative risk (RR) = 1·23; 95 % CI 1·17, 1·28, top v. bottom consumption category), but not unprocessed red meat (RR = 1·10; 95 % CI 0·98, 1·22). Similar associations were reported in a second meta-analysis. All studies argue that plausible mechanisms are available linking processed meat consumption and risk of chronic diseases such as CVD, diabetes mellitus or some types of cancer. However, the results of meta-analyses do show some degree of heterogeneity between studies, and it has to be taken into account that individuals with low red or processed meat consumption tend to have a healthier lifestyle in general. Hence, substantial residual confounding cannot be excluded. Information from other types of studies in man is needed to support a causal role of processed meat in the aetiology of chronic diseases, e.g. studies using the Mendelian randomisation approach.
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Inami K, Shiino J, Hagiwara S, Takeda K, Mochizuki M. Transnitrosation of non-mutagenic N-nitrosoproline forms mutagenic N-nitroso-N-methylurea. Bioorg Med Chem 2015; 23:3297-302. [PMID: 25975641 DOI: 10.1016/j.bmc.2015.04.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/17/2015] [Accepted: 04/18/2015] [Indexed: 10/23/2022]
Abstract
N-Nitroso-N-methylurea (NMU) is a potent carcinogen and suspected as a cause of human cancer. In this study, mutagenic NMU was detected by HPLC after the transnitrosation of non-mutagenic N-nitrosoproline (NP) to N-methylurea in the presence of thiourea (TU) under acidic conditions. The structure of NMU was confirmed by comparing (1)H NMR and IR spectra with that of authentic NMU after fractionation by column chromatography. Furthermore, a fraction containing NMU formed by transnitrosation was mutagenic in Salmonella typhimurium TA1535. NMU was formed in the reaction of NP and N-methylurea in the presence of 1,1,3,3-tetramethylthiourea (TTU) or 1,3-dimethylthiourea in place of TU as an accelerator. The reaction rate constants (k) for NMU formation were correlated with their nucleophilicity of sulfur atom in thioureas. The N-methylurea concentration did not affect the NMU formation, whereas the rate of NMU formation correlated linearly with concentrations of NP, TTU and oxonium ion. The observed kinetics suggests a mechanism by which the nitroso group was transferred directly from the protonated NP to the thiourea then to N-methylurea to form NMU. The rate-determining step was the formation of the complex with the protonated NP and thiourea.
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Affiliation(s)
- Keiko Inami
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Yamazaki 2641, Noda-shi, Chiba 278-8510, Japan; Kyoritsu University of Pharmacy, Shibakoen 1-5-30, Minato-ku, Tokyo 105-8512, Japan.
| | - Junko Shiino
- Kyoritsu University of Pharmacy, Shibakoen 1-5-30, Minato-ku, Tokyo 105-8512, Japan
| | - Shin Hagiwara
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Yamazaki 2641, Noda-shi, Chiba 278-8510, Japan
| | - Kei Takeda
- Kyoritsu University of Pharmacy, Shibakoen 1-5-30, Minato-ku, Tokyo 105-8512, Japan
| | - Masataka Mochizuki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Yamazaki 2641, Noda-shi, Chiba 278-8510, Japan; Kyoritsu University of Pharmacy, Shibakoen 1-5-30, Minato-ku, Tokyo 105-8512, Japan
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Zhou L, Anwar MM, Zahid M, Shostrom V, Mirvish SS. Urinary excretion of N-nitroso compounds in rats fed sodium nitrite and/or hot dogs. Chem Res Toxicol 2014; 27:1669-74. [PMID: 25183213 PMCID: PMC4203384 DOI: 10.1021/tx5000188] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Nitrite-treated meat is a reported
risk factor for colon cancer.
Mice that ingested sodium nitrite (NaNO2) or hot dogs (a
nitrite-treated product) showed increased fecal excretion of apparent
N-nitroso compounds (ANC). Here, we investigated for the first time
whether rats excrete increased amounts of ANC in their urine after
they are fed NaNO2 and/or hot dogs. Rats were treated for
7 days with NaNO2 in drinking water or were fed hot dogs.
Their 24 h urine samples were analyzed for ANC by thermal energy analysis
on days 1–4 after nitrite or hot dog treatment was stopped.
For two rats fed 480 mg NaNO2/L drinking water, mean urinary
ANC excretion on days 1–4 was 30, 5.2, 2.5, and 0.8 nmol/day,
respectively. For two to eight rats/dose given varied NaNO2 doses, mean urinary ANC output on day 1 increased from 0.9 (for
no nitrite) to 37 (for 1000 mg NaNO2/L drinking water)
nmol ANC/day. Urine samples of four rats fed 40–60% hot dogs
contained 12–13 nmol ANC on day 1. Linear regression analysis
showed highly significant correlations between urinary ANC excretion
on day 1 after stopping treatment and varied (a) NaNO2 level
in drinking water for rats fed semipurified or commercials diet and
(b) hot dog levels in the diet. Some correlations remained significant
up to 4 days after nitrite treatment was stopped. Urinary output of
ANC precursors (compounds that yield ANC after mild nitrosation) for
rats fed semipurified or commercial diet was 11–17 or 23–48
μmol/day, respectively. Nitrosothiols and iron nitrosyls were
not detected in urinary ANC and ANCP. Excretion of urinary ANC was
about 60% of fecal ANC excretion for 1 to 2 days after NaNO2 was fed. Administered NaNO2 was not excreted unchanged
in rat urine. We conclude that urinary ANC excretion in humans could
usefully be surveyed to indicate exposure to N-nitroso compounds.
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Affiliation(s)
- Lin Zhou
- Eppley Institute for Research in Cancer, ‡Department of Environmental, Agricultural, and Occupational Health, College of Public Health, §Department of Pharmaceutical Sciences, and ∥Department of Statistics, University of Nebraska Medical Center , Omaha, Nebraska 68198, United States
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Meat consumption and risk of oral cavity and oropharynx cancer: a meta-analysis of observational studies. PLoS One 2014; 9:e95048. [PMID: 24736706 PMCID: PMC3988178 DOI: 10.1371/journal.pone.0095048] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Accepted: 03/23/2014] [Indexed: 12/30/2022] Open
Abstract
PURPOSE High meat consumption, especially red and processed meat consumption is associated with an increased risk of several cancers, however, evidence for oral cavity and oropharynx cancer is limited. Thus, we performed this meta-analysis to determine the association between intakes of total meat, processed meat, red meat, and white meat, and the risk of oral cavity and oropharynx cancer. METHODS Electronic search of Pubmed, Embase, and Cochrane Library Central database was conducted to select relevant studies. Fixed-effect and random-effect models were used to estimate summary relative risks (RR) and the corresponding 95% confidence intervals (CIs). Potential sources of heterogeneity were detected by meta-regression. Subgroup analyses and sensitivity analysis were also performed. RESULTS 12 case-control studies and one cohort study were included in the analyses, including 501,730 subjects and 4,104 oral cavity and oropharynx cancer cases. Pooled results indicated that high consumption of total meat, red meat, and white meat were not significantly associated with increased risk of oral cavity and oropharynx cancer (RR = 1.14, 95% CI[0.78-1.68]; RR = 1.05, 95% CI[0.66, 1.66] and RR = 0.81, 95% CI[0.54, 1.22], respectively), while the high consumption of processed meat was significantly associated with a 91% increased risk of oral cavity and oropharynx cancer (RR = 1.91, 95% CI [1.19-3.06]). Sensitivity analysis indicated that no significant variation in combined RR by excluding any of the study, confirming the stability of present results. CONCLUSIONS The present meta-analysis suggested that high consumption of processed meat was significantly associated with an increased risk of oral cavity and oropharynx cancer, while there was no significantly association between total meat, red meat or white meat and the risk of oral cavity and oropharynx cancer. More prospective cohort studies are warranted to confirm these associations.
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31
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Catsburg CE, Gago-Dominguez M, Yuan JM, Castelao JE, Cortessis VK, Pike MC, Stern MC. Dietary sources of N-nitroso compounds and bladder cancer risk: findings from the Los Angeles bladder cancer study. Int J Cancer 2014; 134:125-35. [PMID: 23775870 DOI: 10.1002/ijc.28331] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 05/22/2013] [Indexed: 12/15/2022]
Abstract
N-Nitroso compounds (NOCs) have been proposed as possible bladder carcinogens. The main sources of exogenous exposure to NOCs are cigarette smoke and diet, particularly processed (i.e., nitrite-treated) meats. Perhaps more importantly, NOCs can be formed endogenously from dietary precursors such as nitrate, nitrite and amines. Heme has been shown to increase endogenous nitrosation. We examined the role of dietary sources of NOCs and NOC precursors as potential bladder cancer risk factors using data from the Los Angeles Bladder Cancer Study, a population-based case-control study. Dietary and demographic information was collected from 1,660 bladder cancer cases and 1,586 controls via a structured questionnaire. Intake of liver and of salami/pastrami/corned beef, were both statistically significantly associated with risk of bladder cancer in this study, particularly among nonsmokers. Heme intake was also statistically significantly associated with risk of bladder cancer among nonsmokers only. When considering NOC precursors, risk was consistently higher among subjects with concurrent high intake of nitrate and high intake of the different meats (sources of amines and nitrosamines). Results of this study are consistent with a role of dietary sources of NOC precursors from processed meats in bladder cancer risk, suggesting consumption of meats with high amine and heme content such as salami and liver as a risk factor for bladder cancer. In addition, any effect of consuming these meats may be greater when accompanied by high nitrate intake.
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Affiliation(s)
- Chelsea E Catsburg
- Department of Preventive Medicine, Keck School of Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA
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Chenni FZ, Taché S, Naud N, Guéraud F, Hobbs DA, Kunhle GGC, Pierre FH, Corpet DE. Heme-induced biomarkers associated with red meat promotion of colon cancer are not modulated by the intake of nitrite. Nutr Cancer 2013; 65:227-33. [PMID: 23441609 DOI: 10.1080/01635581.2013.749291] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Red and processed meat consumption is associated with the risk of colorectal cancer. Three hypotheses are proposed to explain this association, via heme-induced oxidation of fat, heterocyclic amines, or N-nitroso compounds. Rats have often been used to study these hypotheses, but the lack of enterosalivary cycle of nitrate in rats casts doubt on the relevance of this animal model to predict nitroso- and heme-associated human colon carcinogenesis. The present study was thus designed to clarify whether a nitrite intake that mimics the enterosalivary cycle can modulate heme-induced nitrosation and fat peroxidation. This study shows that, in contrast with the starting hypothesis, drinking water added with nitrite to mimic the salivary nitrite content did not change the effect of hemoglobin on biochemical markers linked to colon carcinogenesis, notably lipid peroxidation and cytotoxic activity in the colon of rat. However, ingested sodium nitrite increased fecal nitroso-compounds level, but their fecal concentration and their nature (iron-nitrosyl) would probably not be associated with an increased risk of cancer. We thus suggest that the rat model could be relevant for study the effect of red meat on colon carcinogenesis, in spite of the lack of nitrite in the saliva of rats.
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Affiliation(s)
- Fatima Z Chenni
- Department of Biology, Université Djillali Liabes, Sidi Bel Abbes, Algeria
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He WJ, Xu MY, Xu RR, Zhou XQ, Ouyang JJ, Han H, Chen GZ. Inpatients' Knowledge about Primary Liver Cancer and Hepatitis. Asian Pac J Cancer Prev 2013; 14:4913-8. [DOI: 10.7314/apjcp.2013.14.8.4913] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Yang WS, Wong MY, Vogtmann E, Tang RQ, Xie L, Yang YS, Wu QJ, Zhang W, Xiang YB. Meat consumption and risk of lung cancer: evidence from observational studies. Ann Oncol 2012; 23:3163-3170. [PMID: 22855553 PMCID: PMC3501234 DOI: 10.1093/annonc/mds207] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Revised: 05/23/2012] [Accepted: 05/23/2012] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND A number of epidemiological studies have reported inconsistent findings on the association between meat consumption and lung cancer. DESIGN We therefore conducted a systematic review and meta-analysis to investigate the relationship between meat consumption and lung cancer risk in epidemiological studies. RESULTS Twenty-three case-control and 11 cohort studies were included. All studies adjusted for smoking or conducted in never smokers. The summary relative risks (RRs) of lung cancer for the highest versus lowest intake categories were 1.35 (95% confidence interval (CI) 1.08-1.69) for total meat, 1.34 (95% CI 1.18-1.52) for red meat, and 1.06 (95% CI 0.90-1.25) for processed meat. An inverse association was found between poultry intake and lung cancer (RR = 0.91, 95% CI 0.85-0.97), but not for total white meat (RR = 1.06, 95% CI 0.82-1.37) or fish (RR = 1.01, 95% CI 0.96-1.07). CONCLUSIONS The relationship between meat intake and lung cancer risk appears to depend on the types of meat consumed. A high intake of red meat may increase the risk of lung cancer by about 35%, while a high intake of poultry decreases the risk by about 10%. More well-designed cohort studies on meat mutagens or heme iron, meat cooking preferences, and doneness level are needed to fully characterize this meat-lung cancer association.
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Affiliation(s)
- W S Yang
- State Key Laboratory of Oncogene and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai; Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Y Wong
- Department of Mathematics, The Hong Kong University of Science & Technology, Hong Kong, China
| | - E Vogtmann
- State Key Laboratory of Oncogene and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai; Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; Department of Epidemiology, University of Alabama at Birmingham, Birmingham, USA
| | - R Q Tang
- State Key Laboratory of Oncogene and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai; Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Xie
- State Key Laboratory of Oncogene and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai; Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Y S Yang
- Department of Mathematics, The Hong Kong University of Science & Technology, Hong Kong, China
| | - Q J Wu
- State Key Laboratory of Oncogene and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai; Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - W Zhang
- State Key Laboratory of Oncogene and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai; Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Y B Xiang
- State Key Laboratory of Oncogene and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai; Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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Hebels DG, Sveje KM, de Kok MC, van Herwijnen MH, Kuhnle GG, Engels LG, Vleugels-Simon CB, Mares WG, Pierik M, Masclee AA, Kleinjans JC, de Kok TM. Red meat intake-induced increases in fecal water genotoxicity correlate with pro-carcinogenic gene expression changes in the human colon. Food Chem Toxicol 2012; 50:95-103. [DOI: 10.1016/j.fct.2011.10.038] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 10/03/2011] [Accepted: 10/05/2011] [Indexed: 10/16/2022]
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Davis ME, Lisowyj MP, Zhou L, Wisecarver JL, Gulizia JM, Shostrom VK, Naud N, Corpet DE, Mirvish SS. Induction of colonic aberrant crypts in mice by feeding apparent N-nitroso compounds derived from hot dogs. Nutr Cancer 2012; 64:342-9. [PMID: 22293095 DOI: 10.1080/01635581.2012.650777] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Nitrite-preserved meats (e.g., hot dogs) may help cause colon cancer because they contain N-nitroso compounds. We tested whether purified hot-dog-derived total apparent N-nitroso compounds (ANC) could induce colonic aberrant crypts, which are putative precursors of colon cancer. We purified ANC precursors in hot dogs and nitrosated them to produce ANC. In preliminary tests, CF1 mice received 1 or 3 i.p. injections of 5 mg azoxymethane (AOM)/kg. In Experiments 1 and 2, female A/J mice received ANC in diet. In Experiment 1, ANC dose initially dropped sharply because the ANC precursors had mostly decomposed but, later in Experiment 1 and throughout Experiment 2, ANC remained at 85 nmol/g diet. Mice were killed after 8 (AOM tests) or 17-34 (ANC tests) wk. Median numbers of aberrant crypts in the distal 2 cm of the colon for 1 and 3 AOM injections, CF1 controls, ANC (Experiment 1), ANC (Experiment 2),and untreated A/J mice were 31, 74, 12, 20, 12, and 5-6, with P < 0.01 for both ANC tests. Experiment 2 showed somewhat increased numbers of colonic mucin-depleted foci in the ANC-treated group. We conclude that hot-dog-derived ANC induced significant numbers of aberrant crypts in the mouse colon.
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Affiliation(s)
- Michael E Davis
- Eppley Institute for Research in Cancer, University of Nebraska Medical Center, Omaha, Nebraska 68105, USA
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37
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Capilla-Gonzalez V, Gil-Perotin S, Ferragud A, Bonet-Ponce L, Canales JJ, Garcia-Verdugo JM. Exposure to N-ethyl-N-nitrosourea in adult mice alters structural and functional integrity of neurogenic sites. PLoS One 2012; 7:e29891. [PMID: 22238669 PMCID: PMC3251592 DOI: 10.1371/journal.pone.0029891] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2011] [Accepted: 12/07/2011] [Indexed: 01/08/2023] Open
Abstract
Background Previous studies have shown that prenatal exposure to the mutagen N-ethyl-N-nitrosourea (ENU), a N-nitroso compound (NOC) found in the environment, disrupts developmental neurogenesis and alters memory formation. Previously, we showed that postnatal ENU treatment induced lasting deficits in proliferation of neural progenitors in the subventricular zone (SVZ), the main neurogenic region in the adult mouse brain. The present study is aimed to examine, in mice exposed to ENU, both the structural features of adult neurogenic sites, incorporating the dentate gyrus (DG), and the behavioral performance in tasks sensitive to manipulations of adult neurogenesis. Methodology/Principal Findings 2-month old mice received 5 doses of ENU and were sacrificed 45 days after treatment. Then, an ultrastructural analysis of the SVZ and DG was performed to determine cellular composition in these regions, confirming a significant alteration. After bromodeoxyuridine injections, an S-phase exogenous marker, the immunohistochemical analysis revealed a deficit in proliferation and a decreased recruitment of newly generated cells in neurogenic areas of ENU-treated animals. Behavioral effects were also detected after ENU-exposure, observing impairment in odor discrimination task (habituation-dishabituation test) and a deficit in spatial memory (Barnes maze performance), two functions primarily related to the SVZ and the DG regions, respectively. Conclusions/Significance The results demonstrate that postnatal exposure to ENU produces severe disruption of adult neurogenesis in the SVZ and DG, as well as strong behavioral impairments. These findings highlight the potential risk of environmental NOC-exposure for the development of neural and behavioral deficits.
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Affiliation(s)
- Vivian Capilla-Gonzalez
- Laboratorio de Neurobiologia Comparada, Instituto Cavanilles de Biodiversidad y Biologia Evolutiva, Universidad de Valencia, Valencia, Spain.
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d’Ischia M, Napolitano A, Manini P, Panzella L. Secondary Targets of Nitrite-Derived Reactive Nitrogen Species: Nitrosation/Nitration Pathways, Antioxidant Defense Mechanisms and Toxicological Implications. Chem Res Toxicol 2011; 24:2071-92. [DOI: 10.1021/tx2003118] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Marco d’Ischia
- Department of Organic Chemistry and Biochemistry, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cinthia 4, I-80126 Naples, Italy
| | - Alessandra Napolitano
- Department of Organic Chemistry and Biochemistry, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cinthia 4, I-80126 Naples, Italy
| | - Paola Manini
- Department of Organic Chemistry and Biochemistry, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cinthia 4, I-80126 Naples, Italy
| | - Lucia Panzella
- Department of Organic Chemistry and Biochemistry, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cinthia 4, I-80126 Naples, Italy
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Clarke DB, Startin JR, Hasnip SK, Crews C, Lloyd AS, Dennis MJ. Progress towards the characterisation of faecal compounds. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2011; 3:544-551. [PMID: 32938070 DOI: 10.1039/c0ay00365d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Intestinal nitrosation produces ATNCs (Apparent Total N-nitroso Compounds) and these have been linked with an increased risk of colon cancer from eating red meat. Modern LC-MS instrumentation makes direct detection of ATNC components in faecal water a possibility. The difficulty is in determining which of the many compounds present are N-nitrosamines before embarking on efforts to characterise them. We have assumed that any in vivo nitrosation of alimentary tract contents will be non-specific and depend on the amount and basicity of amine present, with concentration of nitrosating agent being the limiting factor. By further nitrosating faecal waters (and ileostomy fluids) we can increase the amount of ATNC and readily access these compounds. The amount and the number of nitrosamines generated depend on the concentration of individual amines present. By derivatisation separately using both 14N and 15N labelled nitrite, we demonstrated that inspecting chromatograms in parallel for a unit mass difference provides a novel and practicable means for identifying unknown ATNC in faecal and ileostomy samples. MS procedures were linked with the traditional approaches of thermal energy analyser (TEA), preparative HPLC, visualisation of nitrosamines with Griess reagent and degradation of N-nitroso compounds by UV irradiation. We have demonstrated that this approach is repeatable and have used it to identify 30 putative N-nitroso compounds (as protonated parent masses [M + H]+ at: 242, 258, 312, 313, 333, 348, 365, 377, 382, 386, 392, 412, 414, 421, 434, 442, 466, 467, 483, 493, 572, 582, 625, 636, 637, 656, 662, 752, 808, and 870.
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Affiliation(s)
- Don B Clarke
- The Food and Environment Research Agency (Fera), Sand Hutton, York, YO41 1LZ, UK.
| | - James R Startin
- The Food and Environment Research Agency (Fera), Sand Hutton, York, YO41 1LZ, UK.
| | - Sarah K Hasnip
- The Food and Environment Research Agency (Fera), Sand Hutton, York, YO41 1LZ, UK.
| | - Colin Crews
- The Food and Environment Research Agency (Fera), Sand Hutton, York, YO41 1LZ, UK.
| | - Antony S Lloyd
- The Food and Environment Research Agency (Fera), Sand Hutton, York, YO41 1LZ, UK.
| | - M John Dennis
- The Food and Environment Research Agency (Fera), Sand Hutton, York, YO41 1LZ, UK.
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Bastide NM, Pierre FH, Corpet DE. Heme Iron from Meat and Risk of Colorectal Cancer: A Meta-analysis and a Review of the Mechanisms Involved. Cancer Prev Res (Phila) 2011; 4:177-84. [DOI: 10.1158/1940-6207.capr-10-0113] [Citation(s) in RCA: 250] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Capilla-Gonzalez V, Gil-Perotin S, Garcia-Verdugo JM. Postnatal exposure to N-ethyl-N-nitrosurea disrupts the subventricular zone in adult rodents. Eur J Neurosci 2010; 32:1789-99. [PMID: 21044178 DOI: 10.1111/j.1460-9568.2010.07450.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
N-ethyl-N-nitrosurea (ENU), a type of N-nitrous compound (NOC), has been used as inductor for brain tumours due to its mutagenic effect on the rodent embryo. ENU also affected adult neurogenesis when administered during pregnancy. However, no studies have investigated the effect of ENU when exposured during adulthood. For this purpose, three experimental groups of adult mice were injected with ENU at different doses and killed shortly after exposure. When administered in adult mice, ENU did not form brain tumours but led to a disruption of the subventricular zone (SVZ), an adult neurogenic region. Analyses of the samples revealed a reduction in the numbers of neural progenitors compared with control animals, and morphological changes in ependymal cells. A significant decrease in proliferation was tested in vivo with 5-bromo-2-deoxyuridine administration and confirmed in vitro with a neurosphere assay. Cell death, assessed as active-caspase-3 reactivity, was more prominent in treated animals and cell death-related populations increased in parallel. Two additional groups were maintained for 45 and 120 days after five doses of ENU to study the potential regeneration of the SVZ, but only partial recovery was detected. In conclusion, exposure to ENU alters the organization of the SVZ and causes partial exhaustion of the neurogenic niche. The functional repercussion of these changes remains unknown, but exposure to NOCs implies a potential risk that needs further evaluation.
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Affiliation(s)
- V Capilla-Gonzalez
- Instituto Cavanilles de Biodiversidad y Biologia Evolutiva, Universidad de Valencia, Valencia, Spain
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Santarelli RL, Vendeuvre JL, Naud N, Taché S, Guéraud F, Viau M, Genot C, Corpet DE, Pierre FHF. Meat processing and colon carcinogenesis: cooked, nitrite-treated, and oxidized high-heme cured meat promotes mucin-depleted foci in rats. Cancer Prev Res (Phila) 2010; 3:852-64. [PMID: 20530708 DOI: 10.1158/1940-6207.capr-09-0160] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Processed meat intake is associated with colorectal cancer risk, but no experimental study supports the epidemiologic evidence. To study the effect of meat processing on carcinogenesis promotion, we first did a 14-day study with 16 models of cured meat. Studied factors, in a 2 x 2 x 2 x 2 design, were muscle color (a proxy for heme level), processing temperature, added nitrite, and packaging. Fischer 344 rats were fed these 16 diets, and we evaluated fecal and urinary fat oxidation and cytotoxicity, three biomarkers of heme-induced carcinogenesis promotion. A principal component analysis allowed for selection of four cured meats for inclusion into a promotion study. These selected diets were given for 100 days to rats pretreated with 1,2-dimethylhydrazine. Colons were scored for preneoplastic lesions: aberrant crypt foci (ACF) and mucin-depleted foci (MDF). Cured meat diets significantly increased the number of ACF/colon compared with a no-meat control diet (P = 0.002). Only the cooked nitrite-treated and oxidized high-heme meat significantly increased the fecal level of apparent total N-nitroso compounds (ATNC) and the number of MDF per colon compared with the no-meat control diet (P < 0.05). This nitrite-treated and oxidized cured meat specifically increased the MDF number compared with similar nonnitrite-treated meat (P = 0.03) and with similar nonoxidized meat (P = 0.004). Thus, a model cured meat, similar to ham stored aerobically, increased the number of preneoplastic lesions, which suggests colon carcinogenesis promotion. Nitrite treatment and oxidation increased this promoting effect, which was linked with increased fecal ATNC level. This study could lead to process modifications to make nonpromoting processed meat.
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A review on applications of chemiluminescence detection in food analysis. Anal Chim Acta 2010; 670:1-10. [DOI: 10.1016/j.aca.2010.04.039] [Citation(s) in RCA: 135] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2009] [Revised: 04/21/2010] [Accepted: 04/22/2010] [Indexed: 11/18/2022]
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Toden S, Belobrajdic DP, Bird AR, Topping DL, Conlon MA. Effects of Dietary Beef and Chicken With and Without High Amylose Maize Starch on Blood Malondialdehyde, Interleukins, IGF-I, Insulin, Leptin, MMP-2, and TIMP-2 Concentrations in Rats. Nutr Cancer 2010; 62:454-65. [DOI: 10.1080/01635580903532382] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Mirvish SS, Davis ME, Lisowyj MP, Gaikwad NW. Effect of Feeding Nitrite, Ascorbate, Hemin, and Omeprazole on Excretion of Fecal Total Apparent N-Nitroso Compounds in Mice. Chem Res Toxicol 2008; 21:2344-51. [DOI: 10.1021/tx8001884] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Sidney S. Mirvish
- Eppley Institute for Research in Cancer and Departments of Pharmaceutical Sciences and of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198
| | - Michael E. Davis
- Eppley Institute for Research in Cancer and Departments of Pharmaceutical Sciences and of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198
| | - Michal P. Lisowyj
- Eppley Institute for Research in Cancer and Departments of Pharmaceutical Sciences and of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198
| | - Nilesh W. Gaikwad
- Eppley Institute for Research in Cancer and Departments of Pharmaceutical Sciences and of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198
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Santarelli RL, Pierre F, Corpet DE. Processed meat and colorectal cancer: a review of epidemiologic and experimental evidence. Nutr Cancer 2008; 60:131-44. [PMID: 18444144 DOI: 10.1080/01635580701684872] [Citation(s) in RCA: 262] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Processed meat intake may be involved in the etiology of colorectal cancer, a major cause of death in affluent countries. The epidemiologic studies published to date conclude that the excess risk in the highest category of processed meat-eaters is comprised between 20% and 50% compared with non-eaters. In addition, the excess risk per gram of intake is clearly higher than that of fresh red meat. Several hypotheses, which are mainly based on studies carried out on red meat, may explain why processed meat intake is linked to cancer risk. Those that have been tested experimentally are (i) that high-fat diets could promote carcinogenesis via insulin resistance or fecal bile acids; (ii) that cooking meat at a high temperature forms carcinogenic heterocyclic amines and polycyclic aromatic hydrocarbons; (iii) that carcinogenic N-nitroso compounds are formed in meat and endogenously; (iv) that heme iron in red meat can promote carcinogenesis because it increases cell proliferation in the mucosa, through lipoperoxidation and/or cytotoxicity of fecal water. Nitrosation might increase the toxicity of heme in cured products. Solving this puzzle is a challenge that would permit to reduce cancer load by changing the processes rather than by banning processed meat.
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Affiliation(s)
- Raphaëlle L Santarelli
- UMR1089 INRA-ENVT Xénobiotiques, Université de Toulouse, Ecole Nationale Vétérinaire, Toulouse, France.
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Sanches Filho PJ, Rios A, Valcarcel M, Melecchi MIS, Caramão EB. Method of determination of nitrosamines in sausages by CO2 supercritical fluid extraction (SFE) and micellar electrokinetic chromatography (MEKC). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:603-7. [PMID: 17263448 DOI: 10.1021/jf062382j] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
In this paper, the use of supercritical fluid extraction (SFE) and micellar electrokinetic capillary chromatography (MEKC) is proposed for the complete analysis of volatile nitrosamines in sausages. The extraction fluid used was CO2 and variables such as density, temperature of thimbles, extraction time, modifier, fluid flow, and kind of traps were investigated. Several experiments were carried out to obtain the most favorable conditions for analysis of volatile nitrosamines in sausages. The recoveries ranged from 21 to 82% for the five nitrosamines studied. The optimal condition of extraction was 0.2 g of sample fortified with 10 mg/kg, using dynamic extraction during 20 min and with adsorbent Florisil in the trap. The solvent selected for the elution of the analytes was methanol.
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Affiliation(s)
- Pedro José Sanches Filho
- Instituto de Química, UFRGS, Porto Alegre, RS, Av. Bento Gonçalves 9500, 90160-970 Porto Alegre, RS, Brazil
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Linseisen J, Rohrmann S, Norat T, Gonzalez CA, Dorronsoro Iraeta M, Morote Gómez P, Chirlaque MD, Pozo BG, Ardanaz E, Mattisson I, Pettersson U, Palmqvist R, Van Guelpen B, Bingham SA, McTaggart A, Spencer EA, Overvad K, Tjønneland A, Stripp C, Clavel-Chapelon F, Kesse E, Boeing H, Klipstein-Grobusch K, Trichopoulou A, Vasilopoulou E, Bellos G, Pala V, Masala G, Tumino R, Sacerdote C, Del Pezzo M, Bueno-de-Mesquita HB, Ocke MC, Peeters PHM, Engeset D, Skeie G, Slimani N, Riboli E. Dietary intake of different types and characteristics of processed meat which might be associated with cancer risk – results from the 24-hour diet recalls in the European Prospective Investigation into Cancer and Nutrition (EPIC). Public Health Nutr 2007; 9:449-64. [PMID: 16870017 DOI: 10.1079/phn2005861] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
AbstractObjectiveThere is increasing evidence for a significant effect of processed meat (PM) intake on cancer risk. However, refined knowledge on how components of this heterogeneous food group are associated with cancer risk is still missing. Here, actual data on the intake of PM subcategories is given; within a food-based approach we considered preservation methods, cooking methods and nutrient content for stratification, in order to address most of the aetiologically relevant hypotheses.Design and settingStandardised computerised 24-hour diet recall interviews were collected within the framework of the European Prospective Investigation into Cancer and Nutrition (EPIC), a prospective cohort study in 27 centres across 10 European countries.SubjectsSubjects were 22 924 women and 13 031 men aged 35–74 years.ResultsExcept for the so-called ‘health-conscious’ cohort in the UK, energy-adjusted total PM intake ranged between 11.1 and 47.9 g day−1 in women and 18.8 and 88.5 g day−1 in men. Ham, salami-type sausages and heated sausages contributed most to the overall PM intake. The intake of cured (addition of nitrate/nitrite) PM was highest in the German, Dutch and northern European EPIC centres, with up to 68.8 g day−1 in men. The same was true for smoked PM (up to 51.8 g day−1). However, due to the different manufacturing practice, the highest average intake of NaNO2 through PM consumption was found for the Spanish centres (5.4 mg day−1 in men) as compared with German and British centres. Spanish centres also showed the highest intake of NaCl-rich types of PM; most cholesterol- and iron-rich PM was consumed in central and northern European centres. Possibly hazardous cooking methods were more often used for PM preparation in central and northern European centres.ConclusionsWe applied a food-based categorisation of PM that addresses aetiologically relevant mechanisms for cancer development and found distinct differences in dietary intake of these categories of PM across European cohorts. This predisposes EPIC to further investigate the role of PM in cancer aetiology.
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Affiliation(s)
- Jakob Linseisen
- German Cancer Research Centre, Division of Clinical Epidemiology, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany.
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Zhou L, Haorah J, Perini F, Carmella SG, Shibamoto T, Mirvish SS. Partial purification from hot dogs of N-nitroso compound precursors and their mutagenicity after nitrosation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2006; 54:5679-87. [PMID: 16848563 DOI: 10.1021/jf0604788] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Hot dogs contain apparent N-nitroso compounds (ANC) and ANC precursors (ANCP). ANCP purification was followed by nitrosation, sulfamic acid treatment, and analysis for ANC. Aqueous hot dog extracts were adsorbed on silica gel, which was eluted with MeCN and MeOH. The MeOH eluate was adsorbed on cation exchange resin (H+ form) and eluted with NH4OH. Eluted ANCP traveled at moderate speeds in high-performance liquid chromatography (HPLC) on amino and Pb2+ columns. Gas chromatography-mass spectrometry (GC-MS) of trimethylsilyl (TMS) derivatives of crude water extract indicated the presence of glycerol, phosphate, lactic acid, and two monosaccharides. GC-MS of TMS derivatives of Pb2+ column HPLC eluates indicated that ANCP included 1-deoxy-N-1-glucosyl glycine. The nitrosated NH4OH eluate showed 4x background mutagenic activity for Salmonella typhimurium TA-100. Un-nitrosated fractions showed 2x background activity. Although tryptophan nitrosation gave 88% ANC yield, tryptophan is probably not a major ANCP in hot dogs. Hot dog patties prepared with or without sucrose or glucose showed similar ANC and ANCP levels. We discuss possible implications of these findings for the etiology of colon cancer.
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Affiliation(s)
- Lin Zhou
- Eppley Institute for Research in Cancer and Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
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