Electroacupuncture alters catecholamines in brain regions of rats |
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Authors: | Albert Y Sun Frances Boney Ding Z Lee |
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Institution: | (1) Sinclair Comparative Medicine Research Farm and Biochemistry Department, University of Missouri, 65201 Columbia, Missouri |
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Abstract: | Electroacupuncture (EA) stimulation mediated the release of 3H]norepinephrine (NE) from synaptosomes prelabeled with 3H]NE. The pulse release of 3H]NE by EA stimulation was dependent on the presence of Ca2+. Treatment of rats with EA for 30 min at 4 Hz did not significantly alter the dopamine (DA) content in hypothalamus, cerebellum, pons, midbrain, and cerebral cortex regions, but the DA level was decreased by 20% in caudate nucleus. The NE level was found to increase by 43% in caudate nucleus and 38% in hypothalamus. The results indicate that only certain neuronal pathways are affected by the EA treatment, and that NE and DA may respond differently to such stimulation. |
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