The toxicity of melamine and its analogue in man and animals has been reported widely. The aim of the present study was to examine the pathological effects of feeding melamine and cyanuric acid, separately or in combination, to walking catfish (Clarius batrachus). The catfish developed darkening of the skin as early as 3 days post feeding. Melamine-related crystals were distributed multifocally throughout the liver, kidney, heart, spleen and corpuscle of Stannius of fish fed melamine and cyanuric acid in combination. Oil red 0 staining and electron microscopy revealed that the melamine-related crystals had structure resembling that of plastic polymer crystals. Elevations in the serum concentrations of alanine transaminase, aspartate transaminase, creatinine and uric acid were related to the crystal-associated granulomatous inflammation in the liver and kidney of affected fish. None of the catfish died during the 2-week experiment. Melamine and cyanuric acid are therefore systemically toxic to fish in addition to causing renal crystal formation and renal damage as seen in man and animals. The finding of extrarenal crystals implies that the metabolism and biotransformation of these toxic compounds should be further investigated in aquatic animals. (C) 2011 Elsevier Ltd. All rights reserved.
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Betagro Sci Ctr, Div Lab Serv, Bangkok, ThailandChulalongkorn Univ, Fac Vet Sci, Dept Vet Microbiol, Bangkok 10230, Thailand
Pattanaseth, T.
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Boonsri, K.
Pirarat, N.
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Chulalongkorn Univ, Fac Vet Sci, Dept Vet Pathol, Bangkok 10230, ThailandChulalongkorn Univ, Fac Vet Sci, Dept Vet Microbiol, Bangkok 10230, Thailand
Pirarat, N.
Leepipatpiboon, N.
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Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10230, ThailandChulalongkorn Univ, Fac Vet Sci, Dept Vet Microbiol, Bangkok 10230, Thailand
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Konkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South KoreaKonkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Yhee, J. -Y.
Brown, C. A.
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Konkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Univ Georgia, Coll Vet Med, Athens Vet Diagnost Lab, Athens, GA USAKonkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Brown, C. A.
Yu, C. -H.
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机构:Konkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Yu, C. -H.
Kim, J. -H.
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Konkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South KoreaKonkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Kim, J. -H.
Poppenga, R.
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Univ Calif Davis, Toxicol Lab, Calif Anim Hlth & Food Safety Lab Syst, Davis, CA 95616 USAKonkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Poppenga, R.
Sur, J. -H.
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Konkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South KoreaKonkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
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Betagro Sci Ctr, Div Lab Serv, Bangkok, ThailandChulalongkorn Univ, Fac Vet Sci, Dept Vet Microbiol, Bangkok 10230, Thailand
Pattanaseth, T.
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Boonsri, K.
Pirarat, N.
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Chulalongkorn Univ, Fac Vet Sci, Dept Vet Pathol, Bangkok 10230, ThailandChulalongkorn Univ, Fac Vet Sci, Dept Vet Microbiol, Bangkok 10230, Thailand
Pirarat, N.
Leepipatpiboon, N.
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Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10230, ThailandChulalongkorn Univ, Fac Vet Sci, Dept Vet Microbiol, Bangkok 10230, Thailand
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Konkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South KoreaKonkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Yhee, J. -Y.
Brown, C. A.
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Konkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Univ Georgia, Coll Vet Med, Athens Vet Diagnost Lab, Athens, GA USAKonkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Brown, C. A.
Yu, C. -H.
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机构:Konkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Yu, C. -H.
Kim, J. -H.
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Konkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South KoreaKonkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Kim, J. -H.
Poppenga, R.
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h-index: 0
机构:
Univ Calif Davis, Toxicol Lab, Calif Anim Hlth & Food Safety Lab Syst, Davis, CA 95616 USAKonkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea
Poppenga, R.
Sur, J. -H.
论文数: 0引用数: 0
h-index: 0
机构:
Konkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South KoreaKonkuk Univ, Coll Vet Med, Small Anim Tumor Diagnost Ctr, Dept Vet Pathobiol, Seoul 143701, South Korea