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10 May 2014 : Original article

Effects and mechanisms of acetyl-L-cysteine in rats with chronic mountain sickness with H1-NMR metabolomics methods

Dilinuer MaimaitiyiminABEF, Ainiwaer AikemuBCEF, Mayila KamilijiangBC, Adila SalamuC, Xiangyang ZhangADG

DOI: 10.12659/MSM.890244

Med Sci Monit 2014; 20:767-773

Abstract

BACKGROUND: We established a rat model of chronic mountain sickness using acetyl-L-cysteine. Then we studied the effects and mechanisms of acetyl-L-cysteine (Da) in rats with chronic mountain sickness using nuclear magnetic resonance (H1-NMR) metabolomics methods.

MATERIAL AND METHODS: Using NMR spectroscopy combined with pattern recognition and orthogonal partial least squares discriminant analysis, we analyzed the impact of Da on blood metabolism in rats with chronic mountain sickness by determining different metabolites and changes in metabolic network in the blood of rats with mountain sickness after the intragastric administration of different doses of Da suspension.

RESULTS: Increased levels of amino acids (valine, tyrosine, 1-methyl-histidine, leucine, phenylalanine, and methionine) were detected in the blood of rats in the chronic mountain sickness group, yet significantly decreased levels were detected in control rats. At the same time, β-glucose and α-glucose levels were markedly elevated in the blood of rats in the model group but decreased in the chronic mountain sickness group, which indicated a statistically significant difference compared with the chronic altitude sickness model group (P<0.05).

CONCLUSIONS: Da has a significant impact on the metabolism of rats with chronic mountain sickness. Da may act on the disturbed glucose metabolism and amino acid metabolism in rats triggered by chronic mountain sickness, resulting in the treatment and prevention of this disease.

Keywords: Acetylcysteine - therapeutic use, Altitude Sickness - drug therapy, Animals, Chronic Disease, Discriminant Analysis, Least-Squares Analysis, Metabolome, Metabolomics - methods, Proton Magnetic Resonance Spectroscopy - methods, Rats, Sprague-Dawley

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750