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Research Progress on Fumonisin B1 Contamination and Toxicity: A Review. Molecules 2021; 26:molecules26175238. [PMID: 34500671 PMCID: PMC8434385 DOI: 10.3390/molecules26175238] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/24/2021] [Accepted: 08/24/2021] [Indexed: 12/19/2022] Open
Abstract
Fumonisin B1 (FB1), belonging to the member of fumonisins, is one of the most toxic mycotoxins produced mainly by Fusarium proliferatum and Fusarium verticillioide. FB1 has caused extensive contamination worldwide, mainly in corn, rice, wheat, and their products, while it also poses a health risk and is toxic to animals and human. It has been shown to cause oxidative stress, endoplasmic reticulum stress, cellular autophagy, and apoptosis. This review focuses on the current stage of FB1 contamination, its toxic effects of acute toxicity, immunotoxicity, organ toxicity, and reproductive toxicity on animals and humans. The potential toxic mechanisms of FB1 are discussed. One of the main aims of the work is to provide a reliable reference strategy for understanding the occurrence and toxicity of FB1.
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Pigmented Corn Varieties as Functional Ingredients for Gluten-Free Products. Foods 2021; 10:foods10081770. [PMID: 34441547 PMCID: PMC8392392 DOI: 10.3390/foods10081770] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/20/2021] [Accepted: 07/27/2021] [Indexed: 02/06/2023] Open
Abstract
Oxidative stress, one among the several factors responsible for the gluten toxicity in celiac disease, together with inflammation and duodenal mucosal injury, are only partially reduced by the gluten-free diet. Thanks to their phenolic profile, the pigmented varieties of corn could be an interesting source of dietary antioxidants for the formulation of new gluten-free ingredients. The aim of this research was: (1) to characterize the phenolic profile and the associated antioxidant properties of corn samples with different pigmentation, using spectrophotometric and chromatographic techniques and (2) to assess the stability of anthocyanins during the gastro-intestinal digestion. The pigmented varieties showed a significantly higher content of polyphenols compared to the common yellow varieties and, as a consequence, a higher antioxidant activity. Although corn is among the cereals most frequently used in gluten-free products, it can produce an inflammatory response in some celiac patients. Therefore, after the chemical characterization, the safety of the pigmented varieties for celiac patients was confirmed using different in vitro models (cell agglutination test and the measure of transepithelial electrical resistance). Although in vivo studies are necessary, the data collected in this study underline that the pigmented corn could have a role in reducing the oxidative stress at the intestinal level in celiac subjects.
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Chen Z, Zhou L, Yuan Q, Chen H, Lei H, Su J. Effect of fumonisin B 1 on oxidative stress and gene expression alteration of nutrient transporters in porcine intestinal cells. J Biochem Mol Toxicol 2021; 35:e22706. [PMID: 33443779 DOI: 10.1002/jbt.22706] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 12/14/2020] [Accepted: 12/17/2020] [Indexed: 12/15/2022]
Abstract
Fumonisin B1 (FB1 ) is a common environmental mycotoxin produced by molds such as Fusarium verticillioides. The toxin poses health risks to domestic animals, including pigs, through FB1 -contaminanted feed. However, the cytotoxicity of FB1 to porcine intestines has not been fully analyzed. In the present study, the effects of FB1 on oxidative stress and nutrient transporter-associated genes of the porcine intestinal IPEC-J2 cells were explored. FB1 decreased IPEC-J2 proliferation but did not trigger reactive oxygen species (ROS) overproduction. Meanwhile, FB1 reduced the expression levels of the transporters l-type amino acid transporter-1 (y+ LAT1), solute carrier family 7 member 1 (SLC7A1), solute carrier family 1 member 5 (ASCT2), and excitatory amino acid carrier 1 (EAAC1); in addition, FB1 reduced the levels of the fatty acid transporters long-chain fatty acid transport protein 1 (FATP1) and long-chain fatty acid transport protein 4 (FATP4) as well as glucose transporters Na+ /glucose cotransporter 1 (SGLT1) and glucose transporter 2 (GLUT2). FB1 stimulation increased the expression levels of peptide transporter peptide transporter 1 (PepT1) and metal ion transport-related gene zinc transporter 1 (ZNT1). Moreover, metal ion transporter divalent metal transporter 1 (DMT1) expression was depressed by a higher dosage of FB1 . The data indicate that FB1 results in aberrant expression of nutrient transporters in IPEC-J2 cells, thereby exerting its toxicity even though it fails to exert ROS-dependent oxidative stress.
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Affiliation(s)
- Zhigang Chen
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
| | - Lihua Zhou
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
| | - Qiaoling Yuan
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
| | - Huiyu Chen
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
| | - Hongyu Lei
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
| | - Jianming Su
- Department of Basic Veterinary Medicine, College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China
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Cirlini M, Mazzeo T, Roncoroni L, Lombardo V, Elli L, Bardella MT, Agostoni C, Doneda L, Brighenti F, Dall'Asta C, Pellegrini N. Are Treated Celiac Patients at Risk for Mycotoxins? An Italian Case-Study. Toxins (Basel) 2016; 9:toxins9010011. [PMID: 28036017 PMCID: PMC5308244 DOI: 10.3390/toxins9010011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 12/16/2016] [Accepted: 12/20/2016] [Indexed: 12/03/2022] Open
Abstract
Urinary biomarkers of mycotoxin exposure were evaluated in a group of celiac patients (n = 55) and in a control group of healthy subjects (n = 50) following their habitual diet. Deoxynivalenol (DON), zearalenone (ZEN), and fumonisin B1 (FB1) were monitored in 105 urinary samples collected from the two groups. Dietary habits were also recorded through compilation of a seven-day weighed dietary diary. Biomarkers of mycotoxin exposure were detected in 21 celiac patients and in 15 control subjects, corresponding to about 34% of total participants. In particular, ZEN was the most detected mycotoxin among all the studied subjects with a total of 19 positive cases. Results did not show a statistically significant difference in mycotoxin exposure between the two groups, and the presence of specific mycotoxins was not related to the intake of any particular food category. Our findings suggest little urgency of specific regulation for gluten free products, although the prevalence of exposure observed in free-living diets of both celiac and healthy subjects underlines the need of a constant surveillance on mycotoxins occurrence at large.
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Affiliation(s)
- Martina Cirlini
- Department of Food Science, University of Parma, Parco Area delle Scienze, 49/A, Parma 43124, Italy.
| | - Teresa Mazzeo
- Department of Food Science, University of Parma, Parco Area delle Scienze, 49/A, Parma 43124, Italy.
| | - Leda Roncoroni
- Center for Prevention and Diagnosis of Celiac Disease, Gastroenterology and Endoscopy Unit, Department of Pathophysiology and Transplantation, University of Milan, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan 20122, Italy.
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan 20122, Italy.
| | - Vincenza Lombardo
- Center for Prevention and Diagnosis of Celiac Disease, Gastroenterology and Endoscopy Unit, Department of Pathophysiology and Transplantation, University of Milan, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan 20122, Italy.
| | - Luca Elli
- Center for Prevention and Diagnosis of Celiac Disease, Gastroenterology and Endoscopy Unit, Department of Pathophysiology and Transplantation, University of Milan, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan 20122, Italy.
| | - Maria T Bardella
- Center for Prevention and Diagnosis of Celiac Disease, Gastroenterology and Endoscopy Unit, Department of Pathophysiology and Transplantation, University of Milan, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan 20122, Italy.
| | - Carlo Agostoni
- Intermediate Pediatric Care Unit, IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan 20122, Italy.
- Department of Clinical Sciences and Community Health, University of Milan, Milan 20122, Italy.
| | - Luisa Doneda
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan 20122, Italy.
| | - Furio Brighenti
- Department of Food Science, University of Parma, Parco Area delle Scienze, 49/A, Parma 43124, Italy.
| | - Chiara Dall'Asta
- Department of Food Science, University of Parma, Parco Area delle Scienze, 49/A, Parma 43124, Italy.
| | - Nicoletta Pellegrini
- Department of Food Science, University of Parma, Parco Area delle Scienze, 49/A, Parma 43124, Italy.
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Chen J, Jia Z, Song J, Yuan Y, Zhang L. Fumonisins in China: update on occurrence, epidemiology, exposure and regulation. QUALITY ASSURANCE AND SAFETY OF CROPS & FOODS 2015. [DOI: 10.3920/qas2012.0230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- J. Chen
- West China School of Public Health, Sichuan University, 16# Third Section, Renmin South Road, Chengdu, Sichuan 610041, China P.R
| | - Z. Jia
- West China School of Public Health, Sichuan University, 16# Third Section, Renmin South Road, Chengdu, Sichuan 610041, China P.R
| | - J. Song
- West China School of Public Health, Sichuan University, 16# Third Section, Renmin South Road, Chengdu, Sichuan 610041, China P.R
| | - Y. Yuan
- West China School of Public Health, Sichuan University, 16# Third Section, Renmin South Road, Chengdu, Sichuan 610041, China P.R
| | - L. Zhang
- West China School of Public Health, Sichuan University, 16# Third Section, Renmin South Road, Chengdu, Sichuan 610041, China P.R
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Burger HM, Lombard MJ, Shephard GS, Danster-Christians N, Gelderblom WCA. Development and evaluation of a sensitive mycotoxin risk assessment model (MYCORAM). Toxicol Sci 2014; 141:387-97. [PMID: 24980263 PMCID: PMC4833022 DOI: 10.1093/toxsci/kfu134] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 06/20/2014] [Indexed: 11/13/2022] Open
Abstract
The differential risk of exposure to fumonisin (FB), deoxynivalenol (DON), and zearalenone (ZEA) mycotoxins to the South African population, residing in the nine Provinces was assessed during a cross-sectional grain consumer survey. The relative per capita maize intake (g/day) was stratified by gender, ethnicity, and Province and the probable daily intake (PDI) for each mycotoxin (ng/kg body weight/day) calculated utilizing SPECIAL and SUPER dry milled maize fractions representing different exposure scenarios. Men consumed on an average more maize (173 g/day) than women (142 g/day) whereas the black African ethnic group had the highest intake (279 g/day) followed by the Colored group (169 g/day) with the Asian/Indian and White groups consuming lower quantities of 101 and 80 g/day, respectively. The estimated mean PDIs for the various subgroups and Provinces, utilizing the different dry milled maize fractions, were below the provisional maximum tolerable daily intake (PMTDI) for each mycotoxin. A distinct and more sensitive mycotoxin risk assessment model (MYCORAM) for exposure, stratified by Province and ethnicity were developed utilizing specific maize intake increments (g/kg body weight/day) that provides information on the percentage of the population exposed above the PMTDI for each mycotoxin. Evaluation of the MYCORAM utilizing commercial and EXPERIMENTALLY DERIVED: SPECIAL milling fractions, containing predefined mycotoxins levels, predicts the percentage of maize consumers exposed above the respective PMTDI. Safety modeling using the MYCORAM could also predict a maximum tolerated level adequate to safeguard all South African maize consumers including the most vulnerable groups.
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Affiliation(s)
- Hester-Mari Burger
- Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, PO Box 1906, Bellville 7535, South Africa Department of Biochemistry, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa
| | - Martani J Lombard
- School of Physiology, Nutrition and Consumer Sciences: Nutrition, Faculty of Health Sciences, Potchefstroom Campus, North-West University, Private Bag X6001, Potchefstroom 2520, South Africa
| | - Gordon S Shephard
- Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, PO Box 1906, Bellville 7535, South Africa
| | - Natasha Danster-Christians
- Department Agricultural and Food Sciences, Programme: Consumer Sciences: Food and Nutrition, Cape Peninsula University of Technology, PO Box 1906, Bellville 7535, South Africa
| | - Wentzel C A Gelderblom
- Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, PO Box 1906, Bellville 7535, South Africa Department of Biochemistry, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa
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Kimanya ME, De Meulenaer B, Van Camp J, Baert K, Kolsteren P. Strategies to reduce exposure of fumonisins from complementary foods in rural Tanzania. MATERNAL & CHILD NUTRITION 2012; 8:503-11. [PMID: 22044455 PMCID: PMC6860554 DOI: 10.1111/j.1740-8709.2011.00337.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Feeding infants with maize can expose them to fumonisin mycotoxins. We assessed fumonisin exposure from complementary foods in rural Tanzania and determined strategies to reduce the exposure. We conducted a cross-sectional study in four villages of Tarakea division, Northern Tanzania. We used a repeat 24-hour dietary recall to collect data of maize consumption as complementary food for 254 infants aged 6-8 months. Fumonisin concentrations in the maize were also estimated. Fumonisin exposure was assessed using @risk analysis software. With the software, several maximum fumonisin contamination and maize consumption patterns were combined in order to determine effective strategies for minimizing fumonisin exposure. Of the infants, 89% consumed maize at amounts up to 158g/person/day (mean; 43g/person/day±28). The maize was contaminated with fumonisins at levels up to 3201µgkg(-1) . Risk of fumonisin intake above the provisional maximum tolerable daily limit of 2µgkg(-1) body weight was 15% (95% confidence interval; 10-19). The risk was minimized when the maximum contamination was set at 150µgkg(-1) . The risk was also minimized when the maximum consumption was set at 20g/child/day while keeping the maximum contamination at the European Union (EU) maximum tolerated limit (MTL) of 1000µgkg(-1) . Considering the economical and technological limitations of adopting good agricultural practices in rural Tanzania, it is practically difficult to reduce contamination in maize to 150µgkg(-1) . We suggest adoption of the EU MTL of 1000µgkg(-1) for fumonisins in maize and reduction, by replacement with another cereal, of the maize component in complementary foods to a maximum intake of 20g/child/day.
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Affiliation(s)
| | - Bruno De Meulenaer
- Department of Food Safety and Food Quality, Ghent University, Ghent, Belgium
| | - John Van Camp
- Department of Food Safety and Food Quality, Ghent University, Ghent, Belgium
| | - Katleen Baert
- Department of Food Safety and Food Quality, Ghent University, Ghent, Belgium
| | - Patrick Kolsteren
- Department of Food Safety and Food Quality, Ghent University, Ghent, Belgium
- Nutrition and Child Health Unit, Department of Public Health, Prince Leopold Institute of Tropical Medicine, Antwerpen, Belgium
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8
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Cano-Sancho G, Ramos A, Marín S, Sanchis V. Occurrence of fumonisins in Catalonia (Spain) and an exposure assessment of specific population groups. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2012; 29:799-808. [DOI: 10.1080/19440049.2011.644813] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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9
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Dall'Asta C, Scarlato AP, Galaverna G, Brighenti F, Pellegrini N. Dietary exposure to fumonisins and evaluation of nutrient intake in a group of adult celiac patients on a gluten-free diet. Mol Nutr Food Res 2012; 56:632-40. [DOI: 10.1002/mnfr.201100515] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chiara Dall'Asta
- Department of Organic and Industrial Chemistry; University of Parma; Parma Italy
| | | | - Gianni Galaverna
- Department of Organic and Industrial Chemistry; University of Parma; Parma Italy
| | - Furio Brighenti
- Department of Public Health; University of Parma; Parma Italy
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10
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Dall'Asta C, Scarlato AP, Galaverna G, Brighenti F, Pellegrini N. Dietary exposure to fumonisins and evaluation of nutrient intake in a group of adult celiac patients on a gluten-free diet. Mol Nutr Food Res 2012. [DOI: 10.1002/mnfr.1732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Chiara Dall'Asta
- Department of Organic and Industrial Chemistry; University of Parma; Parma; Italy
| | | | - Gianni Galaverna
- Department of Organic and Industrial Chemistry; University of Parma; Parma; Italy
| | - Furio Brighenti
- Department of Public Health; University of Parma; Parma; Italy
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D’Arco G, Fernández-Franzón M, Font G, Damiani P, Mañes J. Survey of fumonisins B1, B2and B3in conventional and organic retail corn products in Spain and Italy and estimated dietary exposure. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2009; 2:146-53. [DOI: 10.1080/02652030903148314] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Kimanya ME, De Meulenaer B, Baert K, Tiisekwa B, Van Camp J, Samapundo S, Lachat C, Kolsteren P. Exposure of infants to fumonisins in maize-based complementary foods in rural Tanzania. Mol Nutr Food Res 2009; 53:667-74. [PMID: 18837467 DOI: 10.1002/mnfr.200700488] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Feeding children with maize may expose them to fumonisins (FBs). This study assessed FB exposure for infants consuming maize in Tanzania by modeling maize consumption data (kg/kg body weight (bw)/day) with previously collected total FB contamination (microg/kg) patterns for sorted and unsorted maize harvested in 2005 and 2006. Consumption was estimated by twice conducting a 24 h dietary recall for 254 infants. The exposure assessment was performed with the @RISK analysis software. Of the infants, 89% consumed maize from 2.37 to 158 g/person/day (mean; 43 g/person/day +/- 28). Based on the contamination for sorted maize; in 2005, the percentage of infants with FB exposures above the provisional maximum tolerable daily intake (PMTDI) of 2 microg/kg (bw) (26% (95% confidence interval (CI); 23-30)) was significantly higher than the level of 3% (90% CI; 2-12) in 2006. Pooling the datasets for sorted maize from the two seasons resulted in a seemingly more representative risk (10% (95% CI; 6-17)) of exceeding the PMTDI. However, infants who might have consumed unsorted maize would still be at a significantly higher risk (24% (95% CI; 15-34)) of exceeding the PMTDI. Sorting and other good maize management practices should be advocated to farmers in order to minimize FB exposure in rural areas.
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Kim DH, Lee YS, Lee YM, Oh S, Yun YP, Yoo HS. Elevation of sphingoid base 1-phosphate as a potential contributor to hepatotoxicity in fumonisin B1-exposed mice. Arch Pharm Res 2007; 30:962-9. [PMID: 17879749 DOI: 10.1007/bf02993964] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Fumonisins are causative agents of diseases in mice and rats, including liver and renal toxicities, as well as cancer, and are specific inhibitors of ceramide synthase in the metabolism of sphingolipid. The purpose of this study was to determine whether an elevated level of sphingoid base 1-phosphate was related to the expressions of metabolism enzymes in the liver of fumonisin B1 (FB1)-treated mice and acted as a contributing factor to hepatotoxicity. In our previous study, FB1 was confirmed to be toxic to both liver and kidneys, coupled with simultaneous elevation of sphinganine 1-phosphate. ICR mice were treated intraperitoneally with 10 mg/kg/day FB1 for 5 days, with the concentrations of sphingolipid metabolites in the serum and liver measured using HPLC following Bligh-Dyer extraction. The levels of sphingoid bases and their 1-phosphates in the serum and liver were markedly elevated in response to treatment with FB1. In the liver, FB1 increased the expression of sphingosine kinase and inhibited the expression of sphingosine 1-phosphate lyase. The cleaved form of caspase-3 was detected in the liver of FB1-treated mice, indicating the occurrence of apoptosis in the liver following exposure to FB1. The expressions of proapoptotic signaling molecules, such as phosphorylated forms of c-Jun N-terminus kinase (JNK), p38 MAPK and extracellular signal-regulated kinase (ERK), were increased in the liver of FB1-treated mice. In conclusion, these results suggest the elevation of sphingoid base 1-phosphate, as a result of the activation of sphingosine kinase and the inhibition of sphingosine 1-phosphate lyase, may be a major target for FB1-induced hepatotoxicity via the activation of an apoptotic signaling pathway.
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Affiliation(s)
- Dong-Hyun Kim
- College of Pharmacy and CBITRC, Chungbuk National University, Cheongju, Korea
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Shephard GS, Marasas WFO, Burger HM, Somdyala NIM, Rheeder JP, Van der Westhuizen L, Gatyeni P, Van Schalkwyk DJ. Exposure assessment for fumonisins in the former Transkei region of South Africa. ACTA ACUST UNITED AC 2007; 24:621-9. [PMID: 17487603 DOI: 10.1080/02652030601101136] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The fumonisins are mycotoxins produced mainly by Fusarium verticillioides and F. proliferatum in maize, the predominant cereal staple for subsistence farming communities in southern Africa. In order to assess exposure to these mycotoxins in the Bizana (now known as Mbizana) and Centane magisterial areas of the former Transkei region of the Eastern Cape Province of South Africa, the actual maize consumption by different age groups in these communities was measured. In the groups 1-9 years (n = 215) and 10-17 (n = 240) years, mean consumption (+/-standard error) was 246 +/- 10.8 and 368 +/- 10.3 g per person day(-1), respectively, with no significant difference (p > 0.05) between the magisterial areas. For adults (18-65 years) mean maize consumption in Bizana (n = 229) and Centane (n = 178) were significantly different (p < 0.05) at 379 +/- 10.5 and 456 +/- 11.9 g per person day(-1), respectively. An exposure assessment was performed by combining the maize consumption distribution with previously determined levels of total fumonisin (fumonisins B(1) and B(2) combined) contamination in home-grown maize in these two areas. Assuming an individual adult body weight of 60 kg, fumonisin exposure in Bizana, an area of relatively low oesophageal cancer incidence, was 3.43 +/- 0.15 microg kg(-1) body weight day(-1), which was significantly lower (p < 0.05) than that in Centane (8.67 +/- 0.18 microg kg(-1) body weight day(-1)), an area of high oesophageal cancer incidence. Mean fumonisin exposures in all age groups in both Bizana and Centane were above the provisional maximum tolerable daily intake (PMTDI) of 2 microg kg(-1) body weight day(-1) set by the Joint FAO/WHO Expert Committee on Food Additives.
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Affiliation(s)
- G S Shephard
- PROMEC Unit, Medical Research Council, PO Box 7505, Tygerberg 7505, South Africa.
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Caldas ED, Silva ACS. Mycotoxins in corn-based food products consumed in Brazil: an exposure assessment for fumonisins. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:7974-80. [PMID: 17715889 DOI: 10.1021/jf0712898] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Samples from 10 different corn-based food products commercially sold in the Federal District of Brazil were analyzed for fumonisins (FB1 and FB2) using HPLC/fluorescence following naphthalene-2,3 dicarboxaldehyde (NDA) derivatization (limit of quantification (LOQ) = 0.020 mg/kg). Samples were also analyzed for aflatoxins (B1, B2, G1, and G2) on a thin-layer chromatrography (TLC) plate under UV light (LOQ of 2 microg/kg). From the 208 samples analyzed, 80.7 and 71.6% had quantifiable levels of FB1 and FB2, respectively. Mean levels of total fumonisins (FB1 + FB2) ranged from 0.127 mg/kg for corn flakes to 2.04 mg/kg for cornmeal ( creme de milho). No FBs were detected in any of the fresh, sweet corn on the cob samples analyzed. Aflatoxins were not detected in any of the 101 samples analyzed. The daily intakes of fumonisins through the consumption of corn-based food products was estimated using consumption data estimated from the 2002/2003 Brazilian Household Budget Survey and the level of fumonisins found in this and other studies conducted in Brazil. In the Federal District, the calculated total daily intake for the total and the consumers-only populations represented, respectively, 9.0 and 159% of the provisional maximum total daily intake (PMTDI) of 2 microg/kg body weight per day. At the national level, the intakes were calculated based on the fumonisin levels found in the Federal District and on published data from studies conducted elsewhere in the country. They represented 24.1 and 355% PMTDI for the total and the consumers-only populations, respectively. The high incidence of fumonisins in some corn-based products and the exposure levels found for specific subpopulations in the present study indicate the need for setting safe regulatory levels for fumonisins in food in Brazil.
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Affiliation(s)
- Eloisa D Caldas
- Department of Pharmaceutical Sciences, College of Health Sciences, University of Brasília (UnB), 70910-900, Brasília, DF, Brazil.
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Sammon AM. Carcinogens and endemic squamous cancer of the oesophagus in Transkei, South Africa. Environmental initiation is the dominant factor; tobacco or other carcinogens of low potency or concentration are sufficient for carcinogenesis in the predisposed mucosa. Med Hypotheses 2007; 69:125-31. [PMID: 17258402 DOI: 10.1016/j.mehy.2006.11.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2006] [Accepted: 11/05/2006] [Indexed: 12/16/2022]
Abstract
Oesophageal cancer is common in Africa, and is a major cause of death in Transkei, South Africa. The cause of this endemic disease has been debated for many decades. A continuing focus of research has been identification of a single potent carcinogen. I argue that endemic incidence of oesophageal cancer is associated with potent initiation, not with potent carcinogenesis. Tobacco is a known oesophageal carcinogen, and there is very strong evidence that it is causally involved in a significant proportion of victims. Other potential carcinogens present in the environment include fungal mycotoxins, human papillomavirus, Solanum nigrum and nitrosamines. These are all of lower carcinogenic potential for the oesophagus, and do not have strong evidence associating them with the disease. In the presence of potent environmental initiation, any oesophageal carcinogen even if of low potency or of low concentration may cause the disease. Any or all of the substances named above may be involved, any one of them the cause of the final carcinogenic change in the individual. Tobacco exemplifies this point. It is of relatively low concentration/usage in Transkei, yet has an undeniable association with oesophageal cancer. Carcinogenesis for the oesophagus in Transkei is solely or predominantly due to agents which are already known, including tobacco, acting on a predisposed mucosa. The search for further carcinogens is of low importance, and the search for a single potent carcinogen is misguided. What is of importance is the development of methods to reduce the risks associated with predisposing factors and with known carcinogens.
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Affiliation(s)
- Alastair M Sammon
- Gloucestershire Royal Hospital, Great Western Road, Gloucester GL1 3NN, England, United Kingdom.
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Yazdanpanah H, Shephard GS, Marasas WFO, van der Westhuizen L, Rahimian H, Safavi SN, Eskandari P, Ghiasian SA. Human Dietary Exposure to Fumonisin B1 from Iranian Maize Harvested During 1998–2000. Mycopathologia 2006; 161:395-401. [PMID: 16761187 DOI: 10.1007/s11046-006-0017-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2005] [Accepted: 05/23/2006] [Indexed: 11/28/2022]
Abstract
Fumonisin B(1) (FB(1)) is the most abundant of the fumonisin mycotoxins, mainly produced in maize by F. verticillioides and F. proliferatum. A previous study on the FB1 contamination of maize harvested in Mazandaran and Isfahan Provinces of Iran in 1998 and 1999 demonstrated contamination in both provinces. This present study was undertaken to further investigate the variation in levels of contamination and to estimate possible levels of human exposure to fumonisins in Iran. The mean level of FB(1) in 49 visually healthy maize samples collected from Mazandaran Province during 2000 was 6.14 mg/kg, which is higher than that found during 1998 and 1999 (2.27 and 3.18 mg/kg, respectively). Although these levels are higher than the Iranian legislative limits for fumonisins in maize intended for humans, the relatively low estimated consumption of maize in Iran (3.3 g/person/day) implies that average exposures (0.011 and 0.215 microg/kg body weight/day in Isfahan and Mazandaran, respectively) are within the provisional maximum tolerable daily intake of 2 microg/kg body weight/day set by the Joint FAO/WHO Expert Committee on Food Additives. Nevertheless, certain sections of the population who may consume higher amounts of maize or who may replace all or some of their consumption of other cereals with maize, could well exceed this limit.
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Affiliation(s)
- H Yazdanpanah
- Pharmacology and Toxicology Department, School of Pharmacy, Shaheed Beheshti University of Medical Sciences and Health Services, Tehran, Islamic Republic of Iran.
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Mokoena MP, Chelule PK, Gqaleni N. Reduction of fumonisin B1 and zearalenone by lactic acid bacteria in fermented maize meal. J Food Prot 2005; 68:2095-9. [PMID: 16245712 DOI: 10.4315/0362-028x-68.10.2095] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Fusarium species are fungi that infect maize products worldwide and elaborate mycotoxins, which have been associated with cancer. This study was carried out to investigate the potential of lactic acid bacteria fermentation in reducing mycotoxin concentration and toxicity in maize meal products. Maize meal was spiked separately with fumonisin B1 and zearalenone and then allowed to ferment for 4 days. The potential cytotoxicity of the mycotoxin-spiked fermented extracts was also investigated using the SNO human esophageal carcinoma cell line (the SNO cell line was explanted from a cancer patient, S.N., a 62-year-old Zulu man, in July 1972). A significant decrease (P < 0.05) in the concentration of the two mycotoxins was observed, with a 56 to 67% and a 68 to 75% reduction in the third and fourth days, respectively. The two mycotoxins were not detectable in commercially fermented maize meal (amahewu) samples. After fermentation, mycotoxin-spiked maize meal samples containing lactic acid bacteria culture were comparatively less toxic to SNO cells than were samples without lactic acid bacteria. However, this difference in toxicity was not significant (P > 0.05). These results indicate that lactic acid bacteria fermentation can significantly reduce the concentration of mycotoxins in maize. However, such a reduction may not significantly alter the possible toxic effects of such toxins. The exact mechanism of toxin reduction warrants further investigation.
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Affiliation(s)
- Mduduzi P Mokoena
- Department of Biotechnology, Durban Institute of Technology, P.O. Box 953, Durban 4000, South Africa
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20
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Park JW, Kim EK, Shon DH, Kim YB. Natural co-occurrence of aflatoxin B1, fumonisin B1 and ochratoxin A in barley and corn foods from Korea. FOOD ADDITIVES AND CONTAMINANTS 2002; 19:1073-80. [PMID: 12456279 DOI: 10.1080/02652030210151840] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A survey for aflatoxin B1 (AFB1), fumonisin B1 and ochratoxin A (OTA) was conducted on 127 samples that included 30 food-grade barley, 32 barley foods, 18 food-grade corn and 47 corn foods, randomly collected during 1998-99 in Seoul, Korea. The presence of mycotoxins was analysed by direct competitive enzyme-linked immunosorbent assay (ELISA), and most of the positive samples from ELISA were confirmed using high-performance liquid chromatography (HPLC). Recoveries of AFB1 and OTA spiked at 10 ng g(-1) and FB1 spiked at 50 ng g(-1) were 106, 87 and 105% by ELISA, whereas those by HPLC were 80, 79 and 84%, respectively. Detection limits by ELISA for AFB1, FB1 and OTA were 1, 5 and 5 ng g(-1), and those by HPLC were 0.6, 35 and 1 ng g(-1). Naturally occurring AFB1, FB1 and OTA were found in 4/32 (12%), 2/32(6%) and 4/32 (12%) samples of barley foods with an average of 26, 16 and 9 ng g(-1), respectively. AFB1 and FB1 in corn foods were detected in 4/47 (8%) and 9/47 (19%) samples with the average being 20 and 74 ng g(-1), while no OTA was found in any corn foods samples. No AFB1, FB1 or OTA was detected in any of food-grade barley and corn samples. This is the first report on the natural co-occurrence of AFB1 and FB1 in barley and corn foods as well as on surveillance of OTA in Korea.
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Affiliation(s)
- J W Park
- The Graduate School of Biotechnology, Korea University, Seoul 136-701, Korea
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Lu Y, Clifford L, Hauck CC, Hendrich S, Osweiler G, Murphy PA. Characterization of fumonisin B(1)-glucose reaction kinetics and products. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2002; 50:4726-4733. [PMID: 12137505 DOI: 10.1021/jf020134r] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The reaction of fumonisin B(1) with the reducing sugar D-glucose can block the primary amine group of fumonisin B(1) and may detoxify this mycotoxin. A method to separate hundred milligram quantities of fumonisin B(1)-glucose reaction products from the excess D-glucose with a reversed-phase C(18) cartridge was developed. Mass spectrometry revealed that there were four primary products in this chain reaction when fumonisin B(1) was heated with D-glucose at 65 degrees C for 48 h: N-methyl-fumonisin B(1), N-carboxymethyl-fumonisin B(1), N-(3-hydroxyacetonyl)-fumonisin B(1), and N-(2-hydroxy, 2-carboxyethyl)-fumonisin B(1). The N-(1-deoxy-D-fructos-1-yl) fumonisin B(1) (fumonisin B(1)-glucose Schiff's base) was detected by mass spectrometry when fumonisin B(1) was heated with D-glucose at 60 degrees C. The nonenzymatic browning reaction of fumonisin B(1) with excess D-glucose followed apparent first-order kinetics. The activation energy, E(a), was 105.7 kJ/mol. Fumonisin B(1) in contaminated corn could precipitate the nonenzymatic browning reaction with 0.1 M D-glucose at 60 and 80 degrees C.
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Affiliation(s)
- Yun Lu
- Department of Food Science and Human Nutrition, Iowa State University, Ames, Iowa 50011, USA
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Dowell FE, Pearson TC, Maghirang EB, Xie F, Wicklow DT. Reflectance and Transmittance Spectroscopy Applied to Detecting Fumonisin in Single Corn Kernels Infected withFusarium verticillioides. Cereal Chem 2002. [DOI: 10.1094/cchem.2002.79.2.222] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Floyd E. Dowell
- USDA-ARS, Grain Marketing and Production Research Center, 1515 College Avenue, Manhattan, KS 66502. Names are necessary to report factually on available data; however, the USDA neither guarantees nor warrants the standard of the product, and the use of the name by the USDA implies no approval of the product to the exclusion of others that may also be suitable
- Corresponding author. Phone: 785-776-2753 Fax: 785-776-2792. E-mail:
| | - Tom C. Pearson
- USDA-ARS, Grain Marketing and Production Research Center, 1515 College Avenue, Manhattan, KS 66502
| | - Elizabeth B. Maghirang
- Biological and Agricultural Engineering Department, Kansas Sate University, Manhattan, KS 66506
| | - Feng Xie
- Department of Grain Science and Industry, 201 Shellenberger, Kansas State University, Manhattan, KS 66506
| | - Donald T. Wicklow
- USDA-ARS, National Center for Agricultural Utilization Research, 1815 N. University St, Peoria, IL 61604-3999
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Turner PC, Nikiema P, Wild CP. Fumonisin contamination of food: progress in development of biomarkers to better assess human health risks. Mutat Res 1999; 443:81-93. [PMID: 10415433 DOI: 10.1016/s1383-5742(99)00012-5] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Fumonisins, fungal toxins produced by Fusarium moniliforme, contaminate maize based foods and feeds throughout the world. They cause liver and kidney toxicity in animals in addition to leukoencephalomalacia in horses and pulmonary edema in pigs. Fumonisin B(1) is carcinogenic in rats and mice. Ecological studies have linked consumption of fumonisin contaminated maize with oesophageal cancer in human populations in South Africa and China. This review discusses the potential health risks for people exposed to the fumonisins, and describes how mechanistic studies of toxicity in animal models have allowed the development of putative biomarkers of fumonisin exposure at the individual level. The requirements for an applicable biomarker include sample availability as well as a high specificity and sensitivity for the exposure of interest. Most environmental toxic insults involve complex exposures both to other toxins and to infections; these confounding factors need to be considered in assessing both the validity of the biomarker and the exposure-disease associations. Fumonisins can be detected in the urine of animals in feeding studies but the sensitivity of the current methodology means only highly exposed people could be monitored. Mechanistic studies indicate that ceramide synthase, an enzyme involved in sphingolipid synthesis, is one cellular target for fumonisin toxicity and carcinogenicity, and this disruption to sphingolipid metabolism increases the ratio of two sphingoid precursors, sphinganine and sphingosine. The altered ratio has been observed in tissues, serum and urine for a number of animal models suggesting it as a good candidate marker of fumonisin exposure. Despite development of analytical methods to measure this biomarker there have been no studies to date correlating it to fumonisin intake in people. Given the toxic effects of fumonisins in animals and the widespread human exposure, which has been calculated to reach 440 micrograms kg(-1) body weight day(-1) in a population consuming high quantities (460 g day(-1)) of contaminated maize, then the development of biomarkers and their application in epidemiological studies should be a priority for research on these toxins.
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Affiliation(s)
- P C Turner
- Molecular Epidemiology Unit, Algernon Firth Building, School of Medicine, University of Leeds, Leeds LS2 9JT, UK
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