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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 Surg+Neurol 2005 ; 64 Suppl 2 (ä): S17-21 Nephropedia Template TP
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Magnesium sulfate treatment decreases caspase-3 activity after experimental spinal cord injury in rats #MMPMID16256834
Surg Neurol 2005[]; 64 Suppl 2 (ä): S17-21 PMID16256834show ga
BACKGROUND: Apoptosis has increasingly been considered as an important factor in secondary injury after spinal cord injury (SCI). Manifestation of apoptotic cell death process involves activation of the caspase-3 apoptotic cascade. The aim of the study was to demonstrate the effect of magnesium sulfate on caspase-3 activity and to compare its effectiveness with methylprednisolone after acute SCI. METHODS: The rats were randomly and blindly allocated into 5 groups of 8 rats each. Spinal cord contusion injury was produced by the weight drop method. The control group consisted of non-injured rats. In the trauma group, no treatment was given, whereas 1 mL saline, 600 mg/kg magnesium sulfate, and 30 mg/kg methylprednisolone sodium succinate (MPSS) were administered in the vehicle and both treatment groups immediately after injury. Twenty-four hours after trauma, spinal cord samples were obtained, and tissue caspase-3 activity levels were examined. A 1-way analysis of variance and the post hoc test were used for statistical analysis. RESULTS: The results showed that caspase-3 activity increased to statistically significantly higher levels in spinal cord after contusion injury than in the control group. Caspase-3 enzyme activity levels were significantly reduced in animals treated either with magnesium sulfate or MPSS. CONCLUSIONS: We have shown that magnesium sulfate decreases caspase-3 activity in rat spinal cord subjected to contusion injury. Magnesium sulfate may have potential therapeutic benefits by reducing apoptotic tissue damage after SCI.