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Brain Res. 1981 May 4;211(2):476-9.

Ca2+-accumulation in experimental spinal cord trauma.


Quantitative measurements of the time course of calcium levels in experimental spinal cord trauma have been made. The injury was produced in rats by dropping a 10 g weight from 30 cm upon exposed dura-invested spinal cord. Lumbar sections of traumatized spinal cord and internal controls from remote cervical cord were excised and analyzed for calcium using atomic absorption spectroscopy. Total calcium levels in the lesioned cord were significantly elevated over control values within 45 min post-trauma (P less than 0.005), with maximal increase at 8 h. The increased levels of calcium in the lesion tissue confirm the previous morphologic finding of calcium deposits within axons in the lesion.

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