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Changes of intracellular calcium and the correlation with functional damage of the spinal cord after spinal cord injury.

Yadong Zhang, Shuxun Hou, Ye Wu

Open publisher page 8 citations

Abstract

OBJECTIVE: To observe dynamic changes of intracellular calcium ([Ca(2+)]i) after spinal cord injury, and to study the relationship between the changes of [Ca(2+)]i and the functional damage of the spinal cord. METHODS: The rats were subjected to a spinal cord contusion by using a modified Allen's method. The [Ca(2+)]i in the injured segment of the spinal cord was measured by the technique of La(3+) blockage and atomic absorption spectroscopy at 1, 4, 8, 24, 72, and 168 hours after injury. The motor function on the inclined plane was measured at the same time. RESULTS: The spinal cord [Ca(2+)]i increased significantly (P<0.05 or P<0.01) aft er spinal cord injury. There was a significant correlation (P<0.05) between the changes of [Ca(2+)]i and the motor function. CONCLUSIONS: [Ca(2+)]i overload may play an important role in the pathogenesis of spinal cord injury.

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What this paper is about

OBJECTIVE: To observe dynamic changes of intracellular calcium ([Ca(2+)]i) after spinal cord injury, and to study the relationship between the changes of [Ca(2+)]i and the functional damage of the spinal cord. METHODS: The rats were subjected to a spinal cord contusion by using a modified Allen's method. The [Ca(2+)]i in the injured segment of the spinal cord was measured by the technique of La(3+) blockage and atomic absorption spectroscopy at 1, 4, 8, 24, 72, and 168 hours after injury. The motor function on the inclined plane was measured at the same time. RESULTS: The spinal cord [Ca(2+)]i increased significantly (P<0.05 or P<0.01) aft er spinal cord injury. There was a significant correlation (P<0.05) between the changes of [Ca(2+)]i and the motor function. CONCLUSIONS: [Ca(2+)]i overload may play an important role in the pathogenesis of spinal cord injury.

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Available abstract

OBJECTIVE: To observe dynamic changes of intracellular calcium ([Ca(2+)]i) after spinal cord injury, and to study the relationship between the changes of [Ca(2+)]i and the functional damage of the spinal cord. METHODS: The rats were subjected to a spinal cord contusion by using a modified Allen's method. The [Ca(2+)]i in the injured segment of the spinal cord was measured by the technique of La(3+) blockage and atomic absorption spectroscopy at 1, 4, 8, 24, 72, and 168 hours after injury. The motor function on the inclined plane was measured at the same time. RESULTS: The spinal cord [Ca(2+)]i increased significantly (P<0.05 or P<0.01) aft er spinal cord injury. There was a significant correlation (P<0.05) between the changes of [Ca(2+)]i and the motor function. CONCLUSIONS: [Ca(2+)]i overload may play an important role in the pathogenesis of spinal cord injury.

Key concepts: Spinal cord, Spinal cord injury, Cord, Medicine, Calcium, Motor function, Anesthesia, Calcium in biology

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Changes of intracellular calcium and the correlation with functional damage of the spinal cord after spinal cord injury. — Research Paper | ScholarLens