Decreased neuropeptide content in the spinal cord of aged rats: the effect of GM1 ganglioside.


This study investigated the status of substance P (SP), methionine-enkephalin (Met-Enk) and dynorphin A(1-13) (Dyn A) in the spinal cord of aged Sprague-Dawley rats and the effect of GM1 ganglioside on these neuropeptides. SP and Met-Enk, but not Dyn A, were decreased in both dorsal and ventral horns of the aged spinal cord. Treatment with GM1 ganglioside… (More)


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