Potential neuroprotective effects of acupuncture stimulation on diabetes mellitus in a global ischemic rat model.

Abstract

Acupuncture (ACU) is known to be effective in ischemia treatment, and glutamate (GLU) excitotoxicity is an important factor in neuronal cell death. We observed the effect of ACU on cerebral blood flow (%CBF) and DeltaGLU (the changes in GLU release) in the ischemic stroke rat model of diabetic mellitus (DM). A global ischemia was induced using the eleven-vessel occlusion (11-VO) method in 14 Sprague-Dawley rats (DM), which were randomly divided into two groups: the control group and the ACU-treatment group. Extracellular DeltaGLU was assessed using an intra-cerebral biosensor system measuring 256 samples per second, simultaneously with %CBF and electroencephalogram. ACU stimulation was applied to ACU points GB34 and GB39 during the ischemic period. Twenty-three diagnostic parameters were proposed first for a detailed analysis of changes in %CBF and GLU release during ischemia/reperfusion. ACU rats showed a significant decrease in ischemic (p < 0.05) and reperfusion %CBF (p < 0.0001) than control rats, and a significantly larger decrease in ischemic DeltaGLU (p < 0.05) and peak level of reperfusion DeltaGLU (p < 0.005) than control rats. From these results, we suggest that ACU stimulation is responsible for the potential protection of neurons through suppression of %CBF response in the increased plasma osmolality and extracellular DeltaGLU in diabetic rats under ischemic conditions.

• Authors: Samjin Choi, Gi-Ja Lee, Su-Jin Chae, Sung Wook Kang, Chang-Shik Yin, Seung-Hoon Lee, Seok Keun Choi, Hun-Kuk Park
• Journal: Physiological measurement (Physiol Meas) Vol. 31 Issue 5 Pg. 633-47 (May 2010) ISSN: 1361-6579 [Electronic] England
• PMID: 20308770 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Blood Glucose
• Neuroprotective Agents
• Glutamic Acid
• Streptozocin

Topics

• Acupuncture Therapy (methods)
• Animals
• Blood Glucose (metabolism)
• Body Temperature
• Brain Ischemia (complications, physiopathology, therapy)
• Cerebrovascular Circulation (physiology)
• Craniotomy
• Diabetes Mellitus, Experimental (complications, physiopathology, therapy)
• Disease Models, Animal
• Electroencephalography
• Extracellular Space (metabolism)
• Glutamic Acid (metabolism)
• Male
• Neck (blood supply)
• Neuroprotective Agents (therapeutic use)
• Rats
• Streptozocin