151. Effect of magnesium gluconate administration on lipid metabolism, antioxidative status, and related gene expression in rats fed a high-fat diet.
- Author
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Zhang Q, Zhou PH, Zhou XL, Zhang DL, Gu Q, Zhang SJ, Zhang J, Zhang JS, and Qian ZY
- Subjects
- Administration, Oral, Animals, Cholesterol 7-alpha-Hydroxylase genetics, Cholesterol 7-alpha-Hydroxylase metabolism, Gluconates administration & dosage, Hyperlipidemias blood, Hyperlipidemias chemically induced, Hyperlipidemias drug therapy, Hyperlipidemias genetics, Magnesium administration & dosage, Male, RNA, Messenger genetics, RNA, Messenger metabolism, Rats, Rats, Sprague-Dawley, Receptors, LDL genetics, Receptors, LDL metabolism, Antioxidants metabolism, Diet, High-Fat adverse effects, Gene Expression Regulation drug effects, Gluconates pharmacology, Lipid Metabolism drug effects, Lipid Metabolism genetics, Magnesium pharmacology
- Abstract
To explore the effect of magnesium gluconate (MgG) on lipid metabolism and its regulation mechanism through animal experiments, and to provide basis for MgG dietary intervention in hyperlipidemia. The first four weeks was hyperlipidemia-inducing period through high-fat diet and the following eight weeks was the MgG supplementation. At the end of the experiment, blood and liver samples were collected for the measurements of lipid profile, antioxidative indexes, pathological examination, and cholesterol metabolism-related gene expression. Oral administration of MgG notably decreased the blood levels of TC, TG, LDL-C and liver function index ALT and AST of hyperlipidemic rats. The rats supplemented with magnesium showed a huge increase in the GSH-Px and SOD activities, and reduced the heart weight and liver lipid accumulation of high-fat diet fed rats. MgG remarkably up-regulated the mRNA expression levels of LDLR and CYP7A1 of liver enzymes related to cholesterol metabolism. Oral magnesium supplementation inhibited an increase in lipid profile and liver function index by a high-fat diet, and enhanced the activity of the antioxidant enzymes. Magnesium has lipid-lowering and antioxidative effects that protect the liver against hyperlipidemia.
- Published
- 2018
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