In the present study, we have investigated the effects of acupuncture on (1) serum protein expression that might have a beneficial effect on stroke patients and (2) the strength of limb muscles in stroke patients. A total of 35 acute ischemic stroke (IS) patients were divided into two groups, one receiving drug treatment alone and the other receiving electroacupuncture (EA) and drug treatment. EA treatment was performed on eight acupuncture points once a day for 10 consecutive days. Serum proteins were detected using a proteomics method based on two-dimensional gel electrophoresis, and the specificity of proteins was confirmed by Western blotting. Changes of limb muscle strength were measured using a modified Medical Research Council grading scale. After EA, SerpinG1 protein expression in serum was down-regulated while the expressions of gelsolin, complement component I, C3, C4B and beta-2-glycoprotein I proteins were up-regulated in patients. The changes of serum protein expression were further confirmed by Western blotting in a majority of the cases. The muscle strength of limbs was increased after EA in 18 patients. EA appears to be effective in regulating differential expression of multiple serum proteins involved in stroke, and also in enhancement of muscle strength recovery in acute IS patients despite an individual variation.
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