Abstract
High resolution magic angle spinning (MAS)- 1H nuclear magnetic resonance (NMR) spectroscopic-based meta-bonomic approach was applied to the investigation on the acute biochemical effects of Ce(NO 3) 3. Male Wistar rats were administrated with various doses of Ce(NO 3) 3(2, 10, and 50 mg·kg −1 body weight), and MAS 1H NMR spectra of intact liver and kidney tissues were analyzed using principal component analysis to extract toxicity information. The biochemical effects of Ce(NO 3) 3 were characterized by the increase of triglycerides and lactate and the decrease of glycogen in rat liver tissue, together with an elevation of the triglyceride level and a depletion of glycerophosphocholine and betaine in kidney tissues. The target lesions of Ce(NO 3) 3 on liver and kidney were found by MAS NMR-based metabonomic method. This study demonstrates that the combination of MAS 1H NMR and pattern recognition analysis can be an effective method for studies of biochemical effects of rare earths.
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