(1)H NMR based metabolomics approach to study the toxic effects of dichlorvos on goldfish (Carassius auratus).
Chemosphere. 2015 Jul 22;138:537-545
Authors: Liu Y, Chen T, Li MH, Xu HD, Jia AQ, Zhang JF, Wang JS
Abstract
Dichlorvos (DDVP), one of the most widely used organophosphorus pesticides (OPs), has caused serious pollution in environment. In this study, (1)H nuclear magnetic resonance (NMR) based metabolomics approach combined with histopathological and immunohistochemical examination, and biochemical assays were used to investigate toxicities of DDVP on goldfish (Carassius auratus). After 10days' exposure of DDVP at three dosages of 5.18, 2.59 and 1.73mg/L, goldfish tissues (gill, brain, liver and kidney) and serum were collected. Histopathology revealed severe impairment of gills, livers and kidneys, and immunohistochemistry disclosed glial fibrillary acidic protein (GFAP) positive reactive astrocytes in brains. Orthogonal signal correction-partial least squares-discriminant analysis (OSC-PLS-DA) of NMR profiles disclosed that DDVP influenced many metabolites (glutamate, aspartate, acetylcholine, 4-aminobutyrate, glutathione, AMP and lactate in brain; glutathione, glucose, histamine in liver; BCAAs, AMP, aspartate, glutamate, riboflavin in kidney) dose-dependently, involved with imbalance of neurotransmitters, oxidative stress, and disorders of energy and amino acid metabolism. Several self-protection mechanisms concerning glutamate degradation and glutathione (GSH) redox system were found in DDVP intoxicated goldfish.
PMID: 26210017 [PubMed - as supplied by publisher]
[NMR paper] An NMR-based metabolomics study of pork from different crossbreeds and relation to sensory perception.
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Authors: Zhang X, Tang H, Ye C, Liu M
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[NMR paper] 1H NMR-based metabonomic analysis of the serum and urine of rats following subchronic exposure to dichlorvos, deltamethrin, or a combination of these two pesticides.
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Cadmium is a non-essential element to living organisms and has become the severe contaminant in both seawater and sediment in the intertidal zones of the Bohai Sea. The halophyte, Suaeda salsa...
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Biofluids are by far the most commonly studied sample type in metabolic profiling studies, encompassing blood, urine, cerebrospinal fluid, cell culture media and many others. A number of these fluids can be obtained at a high sampling frequency with minimal invasion, permitting detailed characterisation of dynamic metabolic events. One of the attractive properties of...
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[NMR paper] NMR-based metabolomics: a powerful approach for characterizing the effects of environ
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Environ Sci Technol. 2003 Nov 1;37(21):4982-9
Authors: Viant MR, Rosenblum ES, Tieerdema RS
It is important to assess the chronic effects of chemical, physical, and biological stressors on organisms in the environment. Appropriate methods must enable rapid, inexpensive, and...