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Aflatoxins in Feed: Types, Metabolism, Health Consequences in Swine and Mitigation Strategies. Toxins (Basel) 2022; 14:toxins14120853. [PMID: 36548750 PMCID: PMC9783261 DOI: 10.3390/toxins14120853] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/21/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Feeding farm animals with aflatoxin-contaminated feed can cause various severe toxic effects, leading to increased susceptibility to infectious diseases and increased mortality, weight loss, poor performance and reduced reproductive capability. Following ingestion of contaminated foodstuffs, aflatoxins are metabolized and biotransformed differently in animals. Swine metabolism is not effective in detoxifying and excreting aflatoxins, meaning the risk of aflatoxicosis is increased. Thus, it is of great importance to elucidate the metabolism and all metabolic pathways associated with this mycotoxin. The damage induced by AFB1 in cells and tissues consists of inhibition of cell proliferation, carcinogenicity, immunosuppression, mutagenicity, oxidative stress, lipid peroxidation and DNA damage, leading to pathological lesions in the liver, spleen, lymph node, kidney, uterus, heart, and lungs of swine. At present, it is a challenging task and of serious concern to completely remove aflatoxins and their metabolites from feedstuff; thus, the aim of this study was a literature review on the deleterious effects of aflatoxins on swine metabolism, as well as alternatives that contribute to the detoxification or amelioration of aflatoxin-induced effects in farm animal feed.
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Kortei NK, Annan T, Dzikunoo J, Agbetiameh D. Exposure assessment and risk characterization of aflatoxins intake through consumption of maize (Zea mays) in different age populations in the Volta Region of Ghana. INTERNATIONAL JOURNAL OF FOOD CONTAMINATION 2022. [DOI: 10.1186/s40550-022-00099-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
AbstractAflatoxin contamination in foods is a vital health challenge for low and middle-income countries in subtropical regions. Maize (Zea mays L.), a staple food most widely grown in Africa including Ghana, and extensively consumed as much as three times per day, is a source of aflatoxin contamination owing to its susceptibility to fungal infection. Aflatoxin levels were checked against international (European Commission, EC) and local (Ghana Standards Authority, GSA) standards, and health risks associated with maize sampled from the Volta Region (Hohoe, Ho, Battor Dugame, and Keta) of Ghana were determined. Total aflatoxins (totalAFs) and the constituent aflatoxins (AFB1, AFB2, AFG1, and AFG2) were measured with High-Performance Liquid Chromatography (HPLC) with a Fluorescence Detector (FLD). Intake and Risk assessments were also conducted using deterministic models prescribed by the Joint FAO/WHO Expert Committee on Additives (JECFA). The degree of occurrence of aflatoxins was observed to be in decreasing order of AFG2 < AFG1 < AFB2 < AFB1 and were within the ranges of 0.78 ± 0.04 $$-$$
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234.73 ± 3.8 µg/kg, 0.47 ± 0.03 $$-$$
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21.6 ± 0.33 µg/kg, 1.01 ± 0.05 $$-$$
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13.75 ± 1.2 µg/kg and 0.66 ± 0.06 $$-$$
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5.51 ± 0.26 µg/kg respectively. Out of the 100 samples analyzed for total aflatoxins (totalAFs), 68 (68%) exceeded the limits of EC and were of range 4.98 ± 0.6 $$-$$
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445.01 ± 8.9 µg/kg whereas 58 (58%) and ranged between 12.12 ± 1.4 $$-$$
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445.01 ± 8.9 µg/kg exceeded GSA limits. Intake and risk assessments of total aflatoxins (totalAFs) for infants, toddlers, children, adolescents, and adults in the Volta Region were; 0.037–1.14 µg/kg bw/day, 0.35–10.81, and 1.47 -45.14 cases/10,000 person/yr respectively for Estimated Daily Intake (EDI), Margin of Exposure (MOE), and Cancer Risks. It was inferred that the consumption of maize posed potential adverse health effects on all age categories studied because all calculated MOE values were less than 10,000.
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Rasouli H, Nayeri FD, Khodarahmi R. May phytophenolics alleviate aflatoxins-induced health challenges? A holistic insight on current landscape and future prospects. Front Nutr 2022; 9:981984. [PMID: 36386916 PMCID: PMC9649842 DOI: 10.3389/fnut.2022.981984] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/26/2022] [Indexed: 12/24/2022] Open
Abstract
The future GCC-connected environmental risk factors expedited the progression of nCDs. Indeed, the emergence of AFs is becoming a global food security concern. AFs are lethal carcinogenic mycotoxins, causing damage to the liver, kidney, and gastrointestinal organs. Long-term exposure to AFs leads to liver cancer. Almost a variety of food commodities, crops, spices, herbaceous materials, nuts, and processed foods can be contaminated with AFs. In this regard, the primary sections of this review aim to cover influencing factors in the occurrence of AFs, the role of AFs in progression of nCDs, links between GCC/nCDs and exposure to AFs, frequency of AFs-based academic investigations, and world distribution of AFs. Next, the current trends in the application of PPs to alleviate AFs toxicity are discussed. Nearly, more than 20,000 published records indexed in scientific databases have been screened to find recent trends on AFs and application of PPs in AFs therapy. Accordingly, shifts in world climate, improper infrastructures for production/storage of food commodities, inconsistency of global polices on AFs permissible concentration in food/feed, and lack of the public awareness are accounting for a considerable proportion of AFs damages. AFs exhibited their toxic effects by triggering the progression of inflammation and oxidative/nitrosative stress, in turn, leading to the onset of nCDs. PPs could decrease AFs-associated oxidative stress, genotoxic, mutagenic, and carcinogenic effects by improving cellular antioxidant balance, regulation of signaling pathways, alleviating inflammatory responses, and modification of gene expression profile in a dose/time-reliant fashion. The administration of PPs alone displayed lower biological properties compared to co-treatment of these metabolites with AFs. This issue might highlight the therapeutic application of PPs than their preventative content. Flavonoids such as quercetin and oxidized tea phenolics, curcumin and resveratrol were the most studied anti-AFs PPs. Our literature review clearly disclosed that considering PPs in antioxidant therapies to alleviate complications of AFs requires improvement in their bioavailability, pharmacokinetics, tissue clearance, and off-target mode of action. Due to the emergencies in the elimination of AFs in food/feedstuffs, further large-scale clinical assessment of PPs to decrease the consequences of AFs is highly required.
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Affiliation(s)
- Hassan Rasouli
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fatemeh Dehghan Nayeri
- Department of Biotechnology, Faculty of Agricultural and Natural Sciences, Imam Khomeini International University (IKIU), Qazvin, Iran
| | - Reza Khodarahmi
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
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Wangia-Dixon RN, Quach THT, Song X, Ombaka J, Githanga DP, Anzala OA, Wang JS. Determinants of aflatoxin exposures in Kenyan School-aged children. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:1183-1191. [PMID: 33256462 DOI: 10.1080/09603123.2020.1854192] [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: 06/27/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
Aflatoxins are naturally occurring food toxins known to contaminate cereals with a carry-over effect in milk and meat products from farm animals raised on contaminated feed. In children, continuous consumption of aflatoxin-contaminated food is linked to immune suppression, vaccine interference and growth faltering while in adult populations, carcinogenesis in the liver has been established. We evaluate the main determinants of aflatoxin exposures among children recruited from primary schools in Makueni and Siaya Counties. A five-part questionnaire was administered to collect information from randomly selected participants. AflatoxinB1-lysine adducts in children's sera and total aflatoxins in food samples were analyzed by High-Performance Liquid Chromatography with Fluorescence detection. Using Chi-squared tests and Kruskal-Wallis tests, children from low-income households had the highest aflatoxin exposure, p-value = 0.0029. Smaller family size, greater food diversity, and good farming practices were associated with low aflatoxin exposures p < 0.001. Individual households living under severe levels of poverty were evidently exposed to higher levels of aflatoxins.
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Affiliation(s)
- Ruth Nabwire Wangia-Dixon
- Department of Environmental Health Science, University of Georgia, Athens, USA
- KAVI Institute of Clinical Research, University of Nairobi, Nairobi, Kenya
| | - Trang Ho Thu Quach
- Faculty of Pharmacy, Ho Chi Minh City University of Technology (HUTECH), Vietnam
- Department of Epidemiology and Biostatistics, University of Georgia, Athens, USA
| | - Xiao Song
- Department of Epidemiology and Biostatistics, University of Georgia, Athens, USA
| | - James Ombaka
- School of Public Health and Community Development, Maseno University, Maseno, Kenya
| | - David Peter Githanga
- Nairobi Hospital, Hospital Road, Nairobi, Kenya
- Medical Microbiology Department, University of Nairobi Nairobi, Kenya
| | - Omu Aggrey Anzala
- KAVI Institute of Clinical Research, University of Nairobi, Nairobi, Kenya
- Nairobi Hospital, Hospital Road, Nairobi, Kenya
- Medical Microbiology Department, University of Nairobi Nairobi, Kenya
| | - Jia-Sheng Wang
- Department of Environmental Health Science, University of Georgia, Athens, USA
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Jolly PE, Akinyemiju TF, Sakhuja S, Sheth R. Association of aflatoxin B1 levels with mean CD4 cell count and uptake of ART among HIV infected patients: A prospective study. PLoS One 2022; 17:e0260873. [PMID: 35085253 PMCID: PMC8794094 DOI: 10.1371/journal.pone.0260873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 11/18/2021] [Indexed: 11/23/2022] Open
Abstract
Background Aflatoxin suppresses cellular immunity and accentuates HIV-associated changes in T- cell phenotypes and B- cells. Objective This prospective study was conducted to examine the association of aflatoxin levels with CD4 T-cell count and antiretroviral therapy uptake over time. Methods Sociodemographic and food data were collected from antiretroviral therapy naïve HIV-infected patients. CD4+ counts were collected from participants’ medical records. Plasma samples were tested for aflatoxin B1 albumin adducts, hepatitis B surface antigen, and HIV viral load. Participants were separated into high and low aflatoxin groups based on the median aflatoxin B1 albumin adduct level of 10.4 pg/ml for data analysis. Results Participants with high aflatoxin B1 albumin adduct levels had lower mean CD4 at baseline and at each follow-up period. Adjusted multivariable logistic regression analysis showed that higher baseline aflatoxin B1 adduct levels were associated with statistically significant lower CD4 counts (est = -66.5, p = 0.043). Not starting ART and low/middle socioeconomic status were associated with higher CD4 counts (est = 152.2, p<0.001) and (est = 86.3, p = 0.027), respectively. Conclusion Consistent correlations of higher aflatoxin B1 adduct levels with lower CD4 over time indicate that there is an independent early and prolonged effect of aflatoxin on CD4 even with the initiation of antiretroviral therapy. The prospective study design, evaluation of baseline and follow-up measures, extensive control for potential confounders, and utilization of objective measures of aflatoxin exposure and CD4 count provide compelling evidence for a strong epidemiologic association that deserves careful attention in HIV care and treatment programs.
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Affiliation(s)
- Pauline E. Jolly
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- * E-mail:
| | - Tomi F. Akinyemiju
- Department of Population Health Sciences, School of Medicine, Duke University, Durham, North Carolina, United States of America
| | - Swati Sakhuja
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Roshni Sheth
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
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Kortei NK, Annan T, Kyei-Baffour V, Essuman EK, Boakye AA, Tettey CO, Boadi NO. Exposure assessment and cancer risk characterization of aflatoxin M1 (AFM1) through ingestion of raw cow milk in southern Ghana. Toxicol Rep 2022; 9:1189-1197. [DOI: 10.1016/j.toxrep.2022.05.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 12/27/2022] Open
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Mamo FT, Abate BA, Zheng Y, Nie C, He M, Liu Y. Distribution of Aspergillus Fungi and Recent Aflatoxin Reports, Health Risks, and Advances in Developments of Biological Mitigation Strategies in China. Toxins (Basel) 2021; 13:678. [PMID: 34678973 PMCID: PMC8541519 DOI: 10.3390/toxins13100678] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/15/2021] [Accepted: 09/20/2021] [Indexed: 12/24/2022] Open
Abstract
Aflatoxins (AFs) are secondary metabolites that represent serious threats to human and animal health. They are mainly produced by strains of the saprophytic fungus Aspergillus flavus, which are abundantly distributed across agricultural commodities. AF contamination is receiving increasing attention by researchers, food producers, and policy makers in China, and several interesting review papers have been published, that mainly focused on occurrences of AFs in agricultural commodities in China. The goal of this review is to provide a wider scale and up-to-date overview of AF occurrences in different agricultural products and of the distribution of A. flavus across different food and feed categories and in Chinese traditional herbal medicines in China, for the period 2000-2020. We also highlight the health impacts of chronic dietary AF exposure, the recent advances in biological AF mitigation strategies in China, and recent Chinese AF standards.
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Affiliation(s)
- Firew Tafesse Mamo
- School of Food Science and Engineering, Food Safety Research Centre, Foshan University, Foshan 528231, China; (C.N.); (M.H.)
- Ethiopian Biotechnology Institute, Addis Ababa 5954, Ethiopia;
| | | | - Yougquan Zheng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
| | - Chengrong Nie
- School of Food Science and Engineering, Food Safety Research Centre, Foshan University, Foshan 528231, China; (C.N.); (M.H.)
| | - Mingjun He
- School of Food Science and Engineering, Food Safety Research Centre, Foshan University, Foshan 528231, China; (C.N.); (M.H.)
| | - Yang Liu
- School of Food Science and Engineering, Food Safety Research Centre, Foshan University, Foshan 528231, China; (C.N.); (M.H.)
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Popescu RG, Bulgaru C, Untea A, Vlassa M, Filip M, Hermenean A, Marin D, Țăranu I, Georgescu SE, Dinischiotu A. The Effectiveness of Dietary Byproduct Antioxidants on Induced CYP Genes Expression and Histological Alteration in Piglets Liver and Kidney Fed with Aflatoxin B1 and Ochratoxin A. Toxins (Basel) 2021; 13:148. [PMID: 33671978 PMCID: PMC7919288 DOI: 10.3390/toxins13020148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/12/2021] [Accepted: 02/13/2021] [Indexed: 02/07/2023] Open
Abstract
The purpose of this study was to investigate the potential of a byproduct mixture derived from grapeseed and sea buckthorn oil industry to mitigate the harmful damage produced by ochratoxin A and aflatoxin B1 at hepatic and renal level in piglets after weaning. Forty cross-bred TOPIGS-40 hybrid piglets after weaning were assigned to three experimental groups (E1, E2, E3) and one control group (C), and fed with experimental diets for 30 days. The basal diet was served as a control and contained normal compound feed for starter piglets without mycotoxins. The experimental groups were fed as follows: E1-basal diet plus a mixture (1:1) of two byproducts (grapeseed and sea buckthorn meal); E2-the basal diet experimentally contaminated with mycotoxins (479 ppb OTA and 62ppb AFB1); and E3-basal diet containing 5% of the mixture (1:1) of grapeseed and sea buckthorn meal and contaminated with the mix of OTA and AFB1. After 4 weeks, the animals were slaughtered, and tissue samples were taken from liver and kidney in order to perform gene expression and histological analysis. The gene expression analysis showed that when weaned piglets were fed with contaminated diet, the expression of most analyzed genes was downregulated. Among the CYP450 family, CYP1A2 was the gene with the highest downregulation. According to these results, in liver, we found that mycotoxins induced histomorphological alterations in liver and kidney and had an effect on the expression level of CYP1A2, CYP2A19, CYP2E1, and CYP3A29, but we did not detect important changes in the expression level of CY4A24, MRP2 and GSTA1 genes.
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Affiliation(s)
- Roua Gabriela Popescu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Splaiul Independentei No. 91–95, 050095 Bucharest, Romania; (R.G.P.); (A.D.)
| | - Cristina Bulgaru
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, 077015 Ilfov, Romania; (C.B.); (A.U.); (D.M.)
| | - Arabela Untea
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, 077015 Ilfov, Romania; (C.B.); (A.U.); (D.M.)
| | - Mihaela Vlassa
- Raluca Ripan Institute for Research in Chemistry, Babeş Bolyai University, 30 Fântânele Street, 400294 Cluj-Napoca, Romania; (M.V.); (M.F.)
| | - Miuta Filip
- Raluca Ripan Institute for Research in Chemistry, Babeş Bolyai University, 30 Fântânele Street, 400294 Cluj-Napoca, Romania; (M.V.); (M.F.)
| | - Anca Hermenean
- “Aurel Ardelean” Institute of Life Sciences, Vasile Godis Western University of Arad, Rebreanu 86, 310414 Arad, Romania;
| | - Daniela Marin
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, 077015 Ilfov, Romania; (C.B.); (A.U.); (D.M.)
| | - Ionelia Țăranu
- Laboratory of Animal Biology, National Institute for Research and Development for Biology and Animal Nutrition, Calea Bucuresti No. 1, Balotesti, 077015 Ilfov, Romania; (C.B.); (A.U.); (D.M.)
| | - Sergiu Emil Georgescu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Splaiul Independentei No. 91–95, 050095 Bucharest, Romania; (R.G.P.); (A.D.)
| | - Anca Dinischiotu
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Bucharest, Splaiul Independentei No. 91–95, 050095 Bucharest, Romania; (R.G.P.); (A.D.)
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Opoku N, Achaglinkame MA, Amagloh FK. Aflatoxin content in cereal-legume blends on the Ghanaian market far exceeds the permissible limit. Food Secur 2018. [DOI: 10.1007/s12571-018-0849-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Luo X, Li K, Xing J, Qi L, Yang M, Wang R, Wang L, Li Y, Chen Z. In vivo toxicity assessment of aflatoxin B1-contaminated corn after ozone degradation. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2017; 35:341-350. [DOI: 10.1080/19440049.2017.1395518] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xiaohu Luo
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Ke Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Jiali Xing
- Ningbo Institute for Food Control, Ningbo, China
| | - Lijun Qi
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Ming Yang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Ren Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Li Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Yanan Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
| | - Zhengxing Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
- School of Food Science and Technology, Jiangnan University, Wuxi, China
- Collaborative Innovation Center for Food Safety and Quality Control in Jiangsu Province, Wuxi, China
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Ladeira C, Frazzoli C, Orisakwe OE. Engaging One Health for Non-Communicable Diseases in Africa: Perspective for Mycotoxins. Front Public Health 2017; 5:266. [PMID: 29085817 PMCID: PMC5650707 DOI: 10.3389/fpubh.2017.00266] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 09/15/2017] [Indexed: 01/14/2023] Open
Abstract
The role of mycotoxins-e.g., aflatoxins, ochratoxins, trichothecenes, zearalenone, fumonisins, tremorgenic toxins, and ergot alkaloids-has been recognized in the etiology of a number of diseases. In many African countries, the public health impact of chronic (indoor) and/or repeated (dietary) mycotoxin exposure is largely ignored hitherto, with impact on human health, food security, and export of African agricultural food products. Notwithstanding, African scientific research reached milestones that, when linked to findings gained by the international scientific community, make the design and implementation of science-driven governance schemes feasible. Starting from Nigeria as leading African Country, this article (i) overviews available data on mycotoxins exposure in Africa; (ii) discusses new food safety issues, such as the environment-feed-food chain and toxic exposures of food producing animals in risk assessment and management; (iii) identifies milestones for mycotoxins risk management already reached in West Africa; and (iv) points out preliminary operationalization aspects for shielding communities from direct (on health) and indirect (on trade, economies, and livelihoods) effects of mycotoxins. An African science-driven engaging of scientific knowledge by development actors is expected therefore. In particular, One health/One prevention is suggested, as it proved to be a strategic and sustainable development framework.
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Affiliation(s)
- Carina Ladeira
- Environment and Health Research Group, Escola Superior de Tecnologia da Saúde de Lisboa – Instituto Politécnico de Lisboa (ESTeSL – IPL), Lisboa, Portugal
- Grupo de Investigação em Genética e Metabolismo, Escola Superior de Tecnologia da Saúde de Lisboa – Instituto Politécnico de Lisboa (ESTeSL – IPL), Lisboa, Portugal
- Centro de Investigação e Estudos em Saúde Pública, Escola Nacional de Saúde Pública, ENSP, Universidade Nova de Lisboa, Lisboa, Portugal
| | - Chiara Frazzoli
- Department for Cardiovascular, Dysmetabolic and Aging-Associated Diseases, Istituto Superiore di Sanità, Rome, Italy
| | - Orish Ebere Orisakwe
- Toxicology Unit, Faculty of Pharmacy, University of Port Harcourt, Port Harcourt, Nigeria
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Di Gregorio MC, Jager AV, Costa AA, Bordin K, Rottinhghaus GE, Petta T, Souto PCMC, Budiño FEL, Oliveira CAF. Determination of Aflatoxin B1-Lysine in Pig Serum and Plasma by Liquid Chromatography-Tandem Mass Spectrometry. J Anal Toxicol 2017; 41:236-241. [PMID: 27979927 DOI: 10.1093/jat/bkw126] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Aflatoxin B1 (AFB1) is a hepatocarcinogen produced by certain Aspergillus species growing on crops. After biotransformation in the liver, AFB1 generates several metabolites, one of which is AFB1 bound to lysine on serum albumin. AFB1-lysine (AFB1-lys) is a digest product of AFB1-albumin and is considered a biomarker of exposure to AFB1 in humans and animals. The objectives of this paper were to evaluate the performance characteristics of a new analytical method for determination of AFB1-lys levels in pig serum, heparinized and ethylenediaminetetraacetic acid (EDTA) plasma and to evaluate the interference of these anticoagulants in AFB1-lys quantification. Blank blood samples were obtained from eight crossbreed 91-day-old barrows fed AFB1-free diets. Pooled samples (n = 3) and individual samples of serum, EDTA and heparinized plasma collected from five pigs were enzymatically digested with pronase at 37°C for 4 h. AFB1-lys was isolated by solid-phase extraction and quantified by liquid chromatography coupled to tandem mass spectrometry. The analytical method was applied for determination of AFB1-lys in serum and EDTA plasma collected from five 49-day-old crossbreed barrows fed ad libitum diets containing 1.1 mg of AFB1 per kg of feed during 7 days (three animals) or 42 days (two animals). Samples of heparinized plasma were only available from animals intoxicated for 42 days. All animals had lower levels of AFB1-lys in EDTA plasma samples (24.78-37.40 ng/mL), when compared to serum (49.32-252.07 ng/mL-1) or heparinized plasma (176.81 and 264.24 ng/mL-1). EDTA did not interfere in AFB1-lys standard detection, but our findings suggest that EDTA should be avoided during blood collection since it affects the pronase activity in AFB1-albumin adduct digestion and, consequently, causes a reduction in the AFB1-lys levels. Hence, determination of AFB1-lys in serum and heparinized plasma is an approach to assess an individual's exposure of swine to AFB1.
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Affiliation(s)
- Mayra C Di Gregorio
- Department of Food Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte 225, CEP 13635-900 Pirassununga, SP, Brazil
| | - Alessandra V Jager
- Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Av. do Café s/n, CEP 14040-903 Ribeirão Preto, SP, Brazil
| | - Aline A Costa
- Department of Food Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte 225, CEP 13635-900 Pirassununga, SP, Brazil
| | - Keliani Bordin
- Department of Food Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte 225, CEP 13635-900 Pirassununga, SP, Brazil
| | - George E Rottinhghaus
- Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, 1600 East Rollins Street, Columbia, MO 65211, USA
| | - Tânia Petta
- Department of Food Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte 225, CEP 13635-900 Pirassununga, SP, Brazil
| | - Pollyana C M C Souto
- Department of Food Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte 225, CEP 13635-900 Pirassununga, SP, Brazil
| | - Fabio E L Budiño
- Institute of Animal Science and Pastures, Department of Agriculture and Food Supply of the São Paulo State, R. Heitor Penteado 56, CEP 13460-000 Nova Odessa, SP, Brazil
| | - Carlos A F Oliveira
- Department of Food Engineering, Faculty of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte 225, CEP 13635-900 Pirassununga, SP, Brazil
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Saad-Hussein A, Shahy EM, Shaheen W, Taha MM, Mahdy-Abdallah H, Ibrahim KS, Hafez SF, Fadl NN, El-Shamy KA. Comparative Hepatotoxicity of Aflatoxin B1 among Workers Exposed to Different Organic Dust with Emphasis on Polymorphism Role of Glutathione S-Transferase Gene. Open Access Maced J Med Sci 2016; 4:312-8. [PMID: 27335608 PMCID: PMC4908753 DOI: 10.3889/oamjms.2016.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 03/30/2016] [Accepted: 03/31/2016] [Indexed: 01/21/2023] Open
Abstract
AIM: The study aimed to investigate effects of organic dust exposure from different sources on aflatoxin B1-albumin adducts (AFB1/Alb), and role of glutathione S-transferase (GST) gene polymorphism in hepatotoxicity of (AFB1) among exposed workers. MATERIAL AND METHODS: Liver enzymes, AFB1/Alb, and GST polymorphism were estimated in 132 wheat flour dust and 87 woods sawmill workers, and 156 controls. RESULTS: Results revealed that AFB1/Alb and liver enzymes were significantly elevated in exposed workers compared to controls, and were significantly higher in sawmill workers compared to flour workers. AFB1/Alb in flour and sawmill workers with GSTT1 and GSTM1&GSTT1 null genotypes were significantly higher than controls, and in sawmill workers with GSTM1&GSTT1 null than flour workers. Liver enzymes (ALT and AST) in sawmill workers were significantly higher than flour workers and controls in all GST polymorphism; except in GSTT1 polymorphism, where these enzymes were significantly higher in the two exposed groups than controls. CONCLUSIONS: In conclusion, organic dust exposure may cause elevation in AFB1/Alb and liver enzymes of exposed workers, and GST gene polymorphism plays an important role in susceptibility to hepatic parenchymal cell injury; except in workers with GSTT1&GSTM1 null genotype, gene susceptibility seemed to have little role and the main role was for environmental exposures.
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Affiliation(s)
- Amal Saad-Hussein
- Department of Environmental & Occupational Medicine, National Research Centre, Cairo, Egypt
| | - Eman M Shahy
- Department of Environmental & Occupational Medicine, National Research Centre, Cairo, Egypt
| | - Weam Shaheen
- Department of Environmental & Occupational Medicine, National Research Centre, Cairo, Egypt
| | - Mona M Taha
- Department of Environmental & Occupational Medicine, National Research Centre, Cairo, Egypt
| | - Heba Mahdy-Abdallah
- Department of Environmental & Occupational Medicine, National Research Centre, Cairo, Egypt
| | - Khadiga S Ibrahim
- Department of Environmental & Occupational Medicine, National Research Centre, Cairo, Egypt
| | - Salwa F Hafez
- Department of Environmental & Occupational Medicine, National Research Centre, Cairo, Egypt
| | - Nevein N Fadl
- Department of Medical Physiology, National Research Centre, Cairo, Egypt
| | - Karima A El-Shamy
- Department of Medical Physiology, National Research Centre, Cairo, Egypt
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Watson S, Chen G, Sylla A, Routledge MN, Gong YY. Dietary exposure to aflatoxin and micronutrient status among young children from Guinea. Mol Nutr Food Res 2016; 60:511-8. [PMID: 26603511 PMCID: PMC4915736 DOI: 10.1002/mnfr.201500382] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Revised: 11/03/2015] [Accepted: 11/05/2015] [Indexed: 11/07/2022]
Abstract
SCOPE Aflatoxin exposure coincides with micronutrient deficiencies in developing countries. Animal feeding studies have postulated that aflatoxin exposure may be exacerbating micronutrient deficiencies. Evidence available in human subjects is limited and inconsistent. The aim of the study was to investigate the relationship between aflatoxin exposure and micronutrient status among young Guinean children. METHODS AND RESULTS A total of 305 children (28.8 ± 8.4 months) were recruited at groundnut harvest (rainy season), of which 288 were followed up 6 months later postharvest (dry season). Blood samples were collected at each visit. Aflatoxin-albumin adduct levels were measured by ELISA. Vitamin A, vitamin E and β-carotene concentrations were measured using HPLC methods. Zinc was measured by atomic absorption spectroscopy. Aflatoxin exposure and micronutrient deficiencies were prevalent in this population and were influenced by season, with levels increasing between harvest and postharvest. At harvest, children in the highest aflatoxin exposure group, compared to the lowest, were 1.98 (95%CI: 1.00, 3.92) and 3.56 (95%CI: 1.13, 11.15) times more likely to be zinc and vitamin A deficient. CONCLUSION Although children with high aflatoxin exposure levels were more likely to be zinc and vitamin A deficient, further research is necessary to determine a cause and effect relationship.
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Affiliation(s)
- Sinead Watson
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Gaoyun Chen
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | | | | | - Yun Yun Gong
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
- Divison of Epidemiology, School of Medicine, University of Leeds, Leeds, UK
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15
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Fromme H, Gareis M, Völkel W, Gottschalk C. Overall internal exposure to mycotoxins and their occurrence in occupational and residential settings – An overview. Int J Hyg Environ Health 2016; 219:143-65. [DOI: 10.1016/j.ijheh.2015.11.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 11/12/2015] [Accepted: 11/16/2015] [Indexed: 12/18/2022]
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Jolly PE, Akinyemiju TF, Jha M, Aban I, Gonzalez-Falero A, Joseph D. Temporal Variation and Association of Aflatoxin B₁ Albumin-Adduct Levels with Socio-Economic and Food Consumption Factors in HIV Positive Adults. Toxins (Basel) 2015; 7:5129-40. [PMID: 26633502 PMCID: PMC4690118 DOI: 10.3390/toxins7124868] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 11/17/2015] [Accepted: 11/19/2015] [Indexed: 11/17/2022] Open
Abstract
The association between aflatoxin exposure and alteration in immune responses observed in humans suggest that aflatoxin could suppress the immune system and work synergistically with HIV to increase disease severity and progression to AIDS. No longitudinal study has been conducted to assess exposure to aflatoxin (AF) among HIV positive individuals. We examined temporal variation in AFB₁ albumin adducts (AF-ALB) in HIV positive Ghanaians, and assessed the association with socioeconomic and food consumption factors. We collected socioeconomic and food consumption data for 307 HIV positive antiretroviral naive adults and examined AF-ALB levels at recruitment (baseline) and at six (follow-up 1) and 12 (follow-up 2) months post-recruitment, by age, gender, socioeconomic status (SES) and food consumption patterns. Generalized linear models were used to examine the influence of socioeconomic and food consumption factors on changes in AF-ALB levels over the study period, adjusting for other covariates. AF-ALB levels (pg/mg albumin) were lower at baseline (mean AF-ALB: 14.9, SD: 15.9), higher at six months (mean AF-ALB: 23.3, SD: 26.6), and lower at 12 months (mean AF-ALB: 15.3, SD: 15.4). Participants with the lowest SES had the highest AF-ALB levels at baseline and follow up-2 compared with those with higher SES. Participants who bought less than 20% of their food and who stored maize for less than two months had lower AF-ALB levels. In the adjusted models, there was a statistically significant association between follow up time and season (dry or rainy season) on AF-ALB levels over time (p = 0.04). Asymptomatic HIV-positive Ghanaians had high plasma AF-ALB levels that varied according to season, socioeconomic status, and food consumption patterns. Steps need to be taken to ensure the safety and security of the food supply for the population, but in particular for the most vulnerable groups such as HIV positive people.
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Affiliation(s)
- Pauline E Jolly
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Ryals Building, Room 217, Birmingham, AL 35294-0022, USA.
| | - Tomi F Akinyemiju
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Ryals Building, Room 217, Birmingham, AL 35294-0022, USA.
| | - Megha Jha
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Ryals Building, Room 217, Birmingham, AL 35294-0022, USA.
| | - Inmaculada Aban
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Ryals Building, Room 217, Birmingham, AL 35294-0022, USA.
| | - Andrea Gonzalez-Falero
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Ryals Building, Room 217, Birmingham, AL 35294-0022, USA.
| | - Dnika Joseph
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Ryals Building, Room 217, Birmingham, AL 35294-0022, USA.
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Kouadio JH, Lattanzio VMT, Ouattara D, Kouakou B, Visconti A. Assessment of Mycotoxin Exposure in Côte d'ivoire (Ivory Coast) Through Multi-Biomarker Analysis and Possible Correlation with Food Consumption Patterns. Toxicol Int 2015; 21:248-57. [PMID: 25948962 PMCID: PMC4413406 DOI: 10.4103/0971-6580.155336] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Scope: The aim of the presented study was to investigate the mycotoxin exposure of Ivorian population related to the consumption patterns of maize, peanuts, millet, and cassava product (attiéké). Materials and Methods: Maize flour samples (n = 51) were purchased from all Abidjan local markets, in the south of Ivory Coast, and urine (n = 99) was collected during the same reference period (July–September 2011) from volunteers living in Abidjan and Daloa cities. Reversed-phase liquid chromatography coupled with electrospray ionization triple quadrupole mass spectrometry (LC-ESI-MS/MS) was used to analyze aflatoxins (AFB1, AFB2, AFG1, and AFG2), ochratoxin A (OTA), fumonisins (FB1, FB2), deoxynivalenol (DON), zearalenone (ZEA), and T-2 and HT-2 toxins in maize flour samples, and their relevant biomarkers (AFM1, DON, DON + de-epoxydeoxynivalenol (DOM-1), FB1, α-zearalenol (ZOL), β-ZOL, and OTA) in urine samples. Results: Critical maize contamination was observed by AFs occurrence (total AFs 4.5 – 330.0 μg/kg) while OTA was found in 13% of samples analyzed. AFM1 was detected in 40% of urines samples (0.06 – 14.11 ng/ml), OTA in 37% (0.01 – 0.42 ng/ml), FB1 in 27% (0.07 to 15.31 ng/ml) and, DON was found in 21% of samples at levels up to 10.0 ng/ml. The correlation coefficients (R2) obtained by plotting the percentage of biomarker occurrence (positive samples) versus the frequency of food consumption revealed maize, peanuts, millet and attiéké were strongly linked to AFB1 and OTA exposure with values of R2 ranged from 0.462 to 0.956. Conclusion: The present study provided data on mycotoxin risk in Ivory Coast, revealing a frequent co-exposure to the major mycotoxins such as AFs, OTA, and fumonisins, which appeared to be related to the frequency of peanuts, maize, millet and attiéké consumption.
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Affiliation(s)
- James Halbin Kouadio
- Department of Biochemistry and Microbiology, Jean Lorougnon Guédé University, Daloa, Côte d'Ivoire
| | - Veronica M T Lattanzio
- Institute of Sciences of Food Production (ISPA), National Research Council of Italy, Bari, Italy
| | - Djeneba Ouattara
- Department of Epidemiology, Pasteur Institute of Côte d'Ivoire, Paris, France
| | - Brou Kouakou
- Department of Nutrition and Food Safety, Nangui Abrogoua University, Abidjan, Côte d'Ivoire
| | - Angelo Visconti
- Institute of Sciences of Food Production (ISPA), National Research Council of Italy, Bari, Italy
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Mitchell NJ, Kumi J, Aleser M, Elmore SE, Rychlik KA, Zychowski KE, Romoser AA, Phillips TD, Ankrah NA. Short-term safety and efficacy of calcium montmorillonite clay (UPSN) in children. Am J Trop Med Hyg 2014; 91:777-85. [PMID: 25135766 DOI: 10.4269/ajtmh.14-0093] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Recently, an association between childhood growth stunting and aflatoxin (AF) exposure has been identified. In Ghana, homemade nutritional supplements often consist of AF-prone commodities. In this study, children were enrolled in a clinical intervention trial to determine the safety and efficacy of Uniform Particle Size NovaSil (UPSN), a refined calcium montmorillonite known to be safe in adults. Participants ingested 0.75 or 1.5 g UPSN or 1.5 g calcium carbonate placebo per day for 14 days. Hematological and serum biochemistry parameters in the UPSN groups were not significantly different from the placebo-controlled group. Importantly, there were no adverse events attributable to UPSN treatment. A significant reduction in urinary metabolite (AFM1) was observed in the high-dose group compared with placebo. Results indicate that UPSN is safe for children at doses up to 1.5 g/day for a period of 2 weeks and can reduce exposure to AFs, resulting in increased quality and efficacy of contaminated foods.
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Affiliation(s)
- Nicole J Mitchell
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas; Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana; Ejura-Sekyedumase District Hospital, Ejura, Ghana
| | - Justice Kumi
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas; Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana; Ejura-Sekyedumase District Hospital, Ejura, Ghana
| | - Mildred Aleser
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas; Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana; Ejura-Sekyedumase District Hospital, Ejura, Ghana
| | - Sarah E Elmore
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas; Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana; Ejura-Sekyedumase District Hospital, Ejura, Ghana
| | - Kristal A Rychlik
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas; Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana; Ejura-Sekyedumase District Hospital, Ejura, Ghana
| | - Katherine E Zychowski
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas; Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana; Ejura-Sekyedumase District Hospital, Ejura, Ghana
| | - Amelia A Romoser
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas; Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana; Ejura-Sekyedumase District Hospital, Ejura, Ghana
| | - Timothy D Phillips
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas; Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana; Ejura-Sekyedumase District Hospital, Ejura, Ghana
| | - Nii-Ayi Ankrah
- College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas; Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana; Ejura-Sekyedumase District Hospital, Ejura, Ghana
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Ezekiel CN, Warth B, Ogara IM, Abia WA, Ezekiel VC, Atehnkeng J, Sulyok M, Turner PC, Tayo GO, Krska R, Bandyopadhyay R. Mycotoxin exposure in rural residents in northern Nigeria: a pilot study using multi-urinary biomarkers. ENVIRONMENT INTERNATIONAL 2014; 66:138-145. [PMID: 24583186 DOI: 10.1016/j.envint.2014.02.003] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 02/05/2014] [Accepted: 02/06/2014] [Indexed: 06/03/2023]
Abstract
A pilot, cross-sectional, correlational study was conducted in eight rural communities in northern Nigeria to investigate mycotoxin exposures in 120 volunteers (19 children, 20 adolescents and 81 adults) using a modern LC-MS/MS based multi-biomarker approach. First morning urine samples were analyzed and urinary biomarker levels correlated with mycotoxin levels in foods consumed the day before urine collection. A total of eight analytes were detected in 61/120 (50.8%) of studied urine samples, with ochratoxin A, aflatoxin M1 and fumonisin B1 being the most frequently occurring biomarkers of exposure. These mycotoxin biomarkers were present in samples from all age categories, suggestive of chronic (lifetime) exposures. Rough estimates of mycotoxin intake suggested some exposures were higher than the tolerable daily intake. Overall, rural consumer populations from Nasarawa were more exposed to several mixtures of mycotoxins in their diets relative to those from Kaduna as shown by food and urine biomarker data. This study has shown that mycotoxin co-exposure may be a major public health challenge in rural Nigeria; this calls for urgent intervention.
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Affiliation(s)
- Chibundu N Ezekiel
- Mycotoxicology Research Unit, Department of Biosciences and Biotechnology, Babcock University, Ilishan Remo, Nigeria; Pathology/Mycotoxin Laboratory, International Institute of Tropical Agriculture, P.M.B. 5320, Ibadan, Nigeria.
| | - Benedikt Warth
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenzstr. 20, A-3430 Tulln, Austria
| | - Isaac M Ogara
- Faculty of Agriculture, Nasarawa State University Keffi, Lafia Campus, Nasarawa State, Nigeria
| | - Wilfred A Abia
- Laboratory of Pharmacology and Toxicology, University of Yaounde I, Yaounde, Cameroon; Department of Food Technology, Faculty of Science, University of Johannesburg, South Africa
| | | | - Joseph Atehnkeng
- Pathology/Mycotoxin Laboratory, International Institute of Tropical Agriculture, P.M.B. 5320, Ibadan, Nigeria
| | - Michael Sulyok
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenzstr. 20, A-3430 Tulln, Austria
| | - Paul C Turner
- MIAEH, School of Public Health, University of Maryland, College Park, MD 20742, USA
| | - Grace O Tayo
- Department of Agriculture and Industrial Technology, Babcock University, Ilishan Remo, Nigeria
| | - Rudolf Krska
- Center for Analytical Chemistry, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad Lorenzstr. 20, A-3430 Tulln, Austria
| | - Ranajit Bandyopadhyay
- Pathology/Mycotoxin Laboratory, International Institute of Tropical Agriculture, P.M.B. 5320, Ibadan, Nigeria
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Abia WA, Warth B, Sulyok M, Krska R, Tchana A, Njobeh PB, Turner PC, Kouanfack C, Eyongetah M, Dutton M, Moundipa PF. Bio-monitoring of mycotoxin exposure in Cameroon using a urinary multi-biomarker approach. Food Chem Toxicol 2013; 62:927-34. [PMID: 24128729 DOI: 10.1016/j.fct.2013.10.003] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 09/09/2013] [Accepted: 10/02/2013] [Indexed: 12/26/2022]
Abstract
Bio-monitoring of human exposure to mycotoxin has mostly been limited to a few individually measured mycotoxin biomarkers. This study aimed to determine the frequency and level of exposure to multiple mycotoxins in human urine from Cameroonian adults. 175 Urine samples (83% from HIV-positive individuals) and food frequency questionnaire responses were collected from consenting Cameroonians, and analyzed for 15 mycotoxins and relevant metabolites using LC-ESI-MS/MS. In total, eleven analytes were detected individually or in combinations in 110/175 (63%) samples including the biomarkers aflatoxin M1, fumonisin B1, ochratoxin A and total deoxynivalenol. Additionally, important mycotoxins and metabolites thereof, such as fumonisin B2, nivalenol and zearalenone, were determined, some for the first time in urine following dietary exposures. Multi-mycotoxin contamination was common with one HIV-positive individual exposed to five mycotoxins, a severe case of co-exposure that has never been reported in adults before. For the first time in Africa or elsewhere, this study quantified eleven mycotoxin biomarkers and bio-measures in urine from adults. For several mycotoxins estimates indicate that the tolerable daily intake is being exceeded in this study population. Given that many mycotoxins adversely affect the immune system, future studies will examine whether combinations of mycotoxins negatively impact Cameroonian population particularly immune-suppressed individuals.
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Affiliation(s)
- Wilfred A Abia
- Laboratory of Pharmacology and Toxicology, Department of Biochemistry, Faculty of Science, University of Yaounde I, P.O. Box 812, Yaounde, Cameroon; Center for Analytical Chemistry, Department for Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences, Vienna (BOKU), Konrad-Lorenz-Str. 20, A-3430 Tulln, Austria; Department of Food Technology, Faculty of Science, University of Johannesburg, P.O. Box 17011, Doornfontein Campus, 2028 Gauteng, South Africa
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Obuseh FA, Jolly PE, Kulczycki A, Ehiri J, Waterbor J, Desmond RA, Preko PO, Jiang Y, Piyathilake CJ. Aflatoxin levels, plasma vitamins A and E concentrations, and their association with HIV and hepatitis B virus infections in Ghanaians: a cross-sectional study. J Int AIDS Soc 2011; 14:53. [PMID: 22078415 PMCID: PMC3228661 DOI: 10.1186/1758-2652-14-53] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Accepted: 11/11/2011] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Micronutrient deficiencies occur commonly in people infected with the human immunodeficiency virus. Since aflatoxin exposure also results in reduced levels of several micronutrients, HIV and aflatoxin may work synergistically to increase micronutrient deficiencies. However, there has been no report on the association between aflatoxin exposure and micronutrient deficiencies in HIV-infected people. We measured aflatoxin B1 albumin (AF-ALB) adduct levels and vitamins A and E concentrations in the plasma of HIV-positive and HIV-negative Ghanaians and examined the association of vitamins A and E with HIV status, aflatoxin levels and hepatitis B virus (HBV) infection. METHODS A cross-sectional study was conducted in which participants completed a demographic survey and gave a 20 mL blood sample for analysis of AF-ALB levels, vitamins A and E concentrations, CD4 counts, HIV viral load and HBV infection. RESULTS HIV-infected participants had significantly higher AF-ALB levels (median for HIV-positive and HIV-negative participants was 0.93 and 0.80 pmol/mg albumin, respectively; p <0.01) and significantly lower levels of vitamin A (-16.94 μg/dL; p <0.0001) and vitamin E (-0.22 mg/dL; p <0.001). For the total study group, higher AF-ALB was associated with significantly lower vitamin A (-4.83 μg/dL for every 0.1 pmol/mg increase in AF-ALB). HBV-infected people had significantly lower vitamin A (-5.66 μg/dL; p = 0.01). Vitamins A and E levels were inversely associated with HIV viral load (p = 0.02 for each), and low vitamin E was associated with lower CD4 counts (p = 0.004). CONCLUSIONS Our finding of the significant decrease in vitamin A associated with AF-ALB suggests that aflatoxin exposure significantly compromises the micronutrient status of people who are already facing overwhelming health problems, including HIV infection.
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Affiliation(s)
- Francis A Obuseh
- Department of Health Care Organization and Policy, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Pauline E Jolly
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Andrzej Kulczycki
- Department of Health Care Organization and Policy, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - John Ehiri
- Division of Health Promotion Sciences, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, Arizona, USA
| | - John Waterbor
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Renee A Desmond
- Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | | | - Yi Jiang
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Chandrika J Piyathilake
- Department of Nutrition Sciences - Nutritional Biochemistry and Genomics, University of Alabama at Birmingham, Birmingham, Alabama, USA
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