Hepatotoxicity and renal toxicity in rats of corn samples associated with field cases of equine leukoencephalomalacia.
Abstract: Currently there is no convenient bioassay to determine the potential toxicity of corn naturally contaminated with Fusarium moniliforme. A short-term bioassay would be useful for future investigations aimed at isolating as yet unidentified toxins produced by this fungus. Two groups of five male Sprague-Dawley rats were each fed one of two F. moniliforme contaminated corn samples, designated CS-1 and CS-2, that were associated with separate field cases of equine leukoencephalomalacia (ELEM). A control group, also consisting of five male rats, was fed uncontaminated seed corn. All animals survived to the end of the study and there were no apparent differences in appearance or behaviour among groups. Weight loss and irregular food consumption occurred in all groups and probably resulted from nutritional deficiencies inherent in the corn diets. Hepatocellular degeneration, necrosis and hyperplasia as well as biliary hyperplasia were found in the test groups only and were attributed to F. moniliforme. Serum transaminase and alkaline phosphatase activities in animals fed CS-1 and CS-2 for 4 wk were significantly increased compared with the controls, while serum bilirubin concentration was increased only in the CS-1 group. Tubular nephrosis was also present in the renal cortex of all animals fed CS-1 and CS-2. These effects may have been related to fumonisins B1 and B2, recently discovered metabolites of F. moniliforme, that were found in both CS-1 and CS-2. Short-term studies of this type may be useful in screening naturally-contaminated grains and other materials for hepatotoxic metabolites produced by F. moniliforme.
Publication Date: 1989-02-01 PubMed ID: 2714720DOI: 10.1016/0278-6915(89)90002-1Google Scholar: Lookup
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- Journal Article
Summary
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The research explored the potential toxicity in rats caused by consuming corn contaminated with Fusarium moniliforme, a type of fungus. The study found the fungus resulted in rats exhibiting symptoms of liver and kidney damage.
Investigative process
- The research was conducted on two groups of Sprague-Dawley rats that were fed on two different Fusarium moniliforme contaminated corn samples named CS-1 and CS-2. A control group of rats was fed uncontaminated corn. The three groups were observed over the course of the study.
- The rats’ appearances and behaviour were monitored and recorded throughout the study, although no significant changes were noted. The final health status of the animals was also observed with all animals surviving to the end of the study.
- However, all groups exhibited weight loss and irregular food consumption, likely due to the nutritional deficiencies of the corn-based diets. This was observed across the test and control groups.
Identified toxicity symptoms
- Fusarium moniliforme related negative health effects, such as hepatocellular degeneration, necrosis and hyperplasia, and biliary hyperplasia, were only seen within the test groups.
- Rats consuming the contaminated corn showed significantly increased serum transaminase and alkaline phosphatase activities compared to the control group. The CS-1 group also had heightened serum bilirubin concentration.
- Tubular nephrosis was found in the renal cortex of the rats fed the contaminated corn, suggesting damage to the kidneys.
Implications and further inquiry
- The identified effects on the rats may be attributable to fumonisins B1 and B2, metabolites of Fusarium moniliforme, that were detected in both contaminated corn samples.
- This suggests that short-term studies like this one could be helpful for identifying hepatotoxic metabolites in naturally contaminated grains and assessing their potential health risks.
The research contributes valuable insights into the potential risks posed by Fusarium moniliforme, illuminating a clear need for further investigation and precaution in handling corn, grains and other susceptible food products.
Cite This Article
APA
Voss KA, Norred WP, Plattner RD, Bacon CW.
(1989).
Hepatotoxicity and renal toxicity in rats of corn samples associated with field cases of equine leukoencephalomalacia.
Food Chem Toxicol, 27(2), 89-96.
https://doi.org/10.1016/0278-6915(89)90002-1 Publication
Researcher Affiliations
- Toxicology and Mycotoxins Research Unit, Richard B. Russell Agricultural Research Center, United States Department of Agriculture, Athens, GA 30613.
MeSH Terms
- Animals
- Carcinogens, Environmental
- Encephalomalacia / etiology
- Encephalomalacia / veterinary
- Food Contamination / analysis
- Fumonisins
- Fusarium / analysis
- Fusarium / isolation & purification
- Horse Diseases / etiology
- Horses
- Kidney Diseases / etiology
- Kidney Diseases / pathology
- Liver Diseases / etiology
- Liver Diseases / pathology
- Male
- Mycotoxins / analysis
- Mycotoxins / isolation & purification
- Mycotoxins / toxicity
- Rats
- Rats, Inbred Strains
- Zea mays / microbiology
Citations
This article has been cited 23 times.- Jennings JS, Ensley SM, Smith WN, Husz TC, Lawrence TE. Impact of increasing levels of fumonisin on performance, liver toxicity, and tissue histopathology of finishing beef steers. J Anim Sci 2020 Dec 1;98(12).
- Harrer H, Humpf HU, Voss KA. In vivo formation of N-acyl-fumonisin B1. Mycotoxin Res 2015 Feb;31(1):33-40.
- Bacon CW, Hinton DM, Glenn AE, Macías FA, Marin D. Interactions of Bacillus mojavensis and Fusarium verticillioides with a benzoxazolinone (BOA) and its transformation product, APO. J Chem Ecol 2007 Oct;33(10):1885-97.
- Pozzi CR, Corrêa B, Xavier JG, Direito GM, Orsi RB, Matarazzo SV. Effects of prolonged oral administration of fumonisin B1 and aflatoxin B1 in rats. Mycopathologia 2001;151(1):21-7.
- Voss KA, Riley RT, Norred WP, Bacon CW, Meredith FI, Howard PC, Plattner RD, Collins TF, Hansen DK, Porter JK. An overview of rodent toxicities: liver and kidney effects of fumonisins and Fusarium moniliforme. Environ Health Perspect 2001 May;109 Suppl 2(Suppl 2):259-66.
- Marasas WF. Discovery and occurrence of the fumonisins: a historical perspective. Environ Health Perspect 2001 May;109 Suppl 2(Suppl 2):239-43.
- Voss KA, Plattner RD, Riley RT, Meredith FI, Norred WP. In vivo effects of fumonisin B1-producing and fumonisin B1-nonproducing Fusarium moniliforme isolates are similar: fumonisins B2 and B3 cause hepato- and nephrotoxicity in rats. Mycopathologia 1998;141(1):45-58.
- Motelin GK, Haschek WM, Ness DK, Hall WF, Harlin KS, Schaeffer DJ, Beasley VR. Temporal and dose-response features in swine fed corn screenings contaminated with fumonisin mycotoxins. Mycopathologia 1994 Apr;126(1):27-40.
- Beier RC, Elissalde MH, Stanker LH. Calculated three dimensional structures of the fumonisin B1-4 mycotoxins. Bull Environ Contam Toxicol 1995 Apr;54(4):479-87.
- Floss JL, Casteel SW, Johnson GC, Rottinghaus GE, Krause GF. Development toxicity of fumonisin in Syrian hamsters. Mycopathologia 1994 Oct;128(1):33-8.
- Tseng TC, Lee KL, Deng TS, Liu CY, Huang JW. Production of fumonisins by Fusarium species of Taiwan. Mycopathologia 1995 May;130(2):117-21.
- Alberts JF, Gelderblom WC, Thiel PG, Marasas WF, Van Schalkwyk DJ, Behrend Y. Effects of temperature and incubation period on production of fumonisin B1 by Fusarium moniliforme. Appl Environ Microbiol 1990 Jun;56(6):1729-33.
- Voss KA, Plattner RD, Bacon CW, Norred WP. Comparative studies of hepatotoxicity and fumonisin B1 and B2 content of water and chloroform/methanol extracts of Fusarium moniliforme strain MRC 826 culture material. Mycopathologia 1990 Nov;112(2):81-92.
- Thiel PG, Marasas WF, Sydenham EW, Shephard GS, Gelderblom WC, Nieuwenhuis JJ. Survey of fumonisin production by Fusarium species. Appl Environ Microbiol 1991 Apr;57(4):1089-93.
- Ross PF, Rice LG, Plattner RD, Osweiler GD, Wilson TM, Owens DL, Nelson HA, Richard JL. Concentrations of fumonisin B1 in feeds associated with animal health problems. Mycopathologia 1991 Jun;114(3):129-35.
- Shier WT, Abbas HK, Mirocha CJ. Toxicity of the mycotoxins fumonisins B1 and B2 and Alternaria alternata f. sp. lycopersici toxin (AAL) in cultured mammalian cells. Mycopathologia 1991 Nov;116(2):97-104.
- Voss KA, Norred WP, Bacon CW. Subchronic toxicological investigations of Fusarium moniliforme-contaminated corn, culture material, and ammoniated culture material. Mycopathologia 1992 Feb;117(1-2):97-104.
- Norred WP, Wang E, Yoo H, Riley RT, Merrill AH Jr. In vitro toxicology of fumonisins and the mechanistic implications. Mycopathologia 1992 Feb;117(1-2):73-8.
- Plattner RD, Shackelford DD. Biosynthesis of labeled fumonisins in liquid cultures of Fusarium moniliforme. Mycopathologia 1992 Feb;117(1-2):17-22.
- Wilson TM, Ross PF, Owens DL, Rice LG, Green SA, Jenkins SJ, Nelson HA. Experimental reproduction of ELEM. A study to determine the minimum toxic dose in ponies. Mycopathologia 1992 Feb;117(1-2):115-20.
- Gelderblom WC, Marasas WF, Vleggaar R, Thiel PG, Cawood ME. Fumonisins: isolation, chemical characterization and biological effects. Mycopathologia 1992 Feb;117(1-2):11-6.
- Ross PF, Rice LG, Osweiler GD, Nelson PE, Richard JL, Wilson TM. A review and update of animal toxicoses associated with fumonisin-contaminated feeds and production of fumonisins by Fusarium isolates. Mycopathologia 1992 Feb;117(1-2):109-14.
- Haschek WM, Motelin G, Ness DK, Harlin KS, Hall WF, Vesonder RF, Peterson RE, Beasley VR. Characterization of fumonisin toxicity in orally and intravenously dosed swine. Mycopathologia 1992 Feb;117(1-2):83-96.
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