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Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Curr+Drug+Deliv 2018 ; 15 (8): 1159-1166 Nephropedia Template TP
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Protective Effects of Magnesium Sulfate on Radiation Induced Brain Injury in Rats #MMPMID29366417
Chen N; Xu RJ; Wang LL; Zhang M; Feng SC; Zhou JY; Tu Y
Curr Drug Deliv 2018[]; 15 (8): 1159-1166 PMID29366417show ga
OBJECTIVES: The effect of magnesium sulfate on brain tissue of SD rats irradiated by 6MeV electron was investigated. METHODS: SD rats were divided into three groups: control group, irradiation (IR group) and irradiation treated with magnesium sulfate (IR+M group). After being anesthetized, the whole brains of IR group and IR+M group were exposed to 6 MeV electron radiation. IR+M group was i.p. injected with 10% magnesium sulfate (400 mg/kg) one day before radiation and three days and five days after radiation. And on the 1st, 3rd, 7th and 14th day after radiation, SD rats were euthanatized to take brain tissue for the detection of calcium, redox status and cell apoptosis, as well as the expression of NF-kappaB and ICAM-1. RESULTS: The results indicated that magnesium treatment may alleviate the elevation of calcium and enhance redox status through increasing the activities of superoxide dimutase (SOD) and myeloperodase (MPO), and decreasing the concentration of malondialdehyde (MDA). Tunnel and immunohistochemistry assay suggested that treatment with magnesium decreased the apoptosis rate of brain cells and the expressions of caspase-3, respectively. Decline of the expression of NF-kappaB and ICAM-1 protein was observed after the treatment of magnesium. CONCLUSION: All the results demonstrated that magnesium may elicit protective effect against radiationinduced brain injury by reducing calcium overload, improving redox and inhibiting cell apoptosis. Moreover, magnesium significantly down-regulated the protein or mRNA levels of NF-kappaB and ICAM- 1. The findings may provide references for the application of magnesium in clinic for brain injury induced by radiation.
Curr+Drug+Deliv 2018 ; 15 (8): 1159-1166
