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Effects of Polysaccharide of Gastrodia Elata Blume and Electro-Acupuncture on Expressions of Brain-Derived Neurotrophic Factor and Stem Cell Factor Protein in Caudate Putamen of Focal Cerebral Ischemia Rats

Huai-bin Li, Feng Wu, Hua-chun Miao, Ke-ren Xiong

(Department of Anatomy, Wannan Medical College, Wuhu, Anhui, China (mainland))

Med Sci Monit Basic Res 2016; 22:175-180

DOI: 10.12659/MSMBR.901524

BACKGROUND: The aim of this study was to explore the neural protective effect of polysaccharide of Gastrodia elata Blume (PGB) and electro-acupuncture (EA) on focal cerebral ischemia rats.
MATERIAL AND METHODS: A total of 40 Sprague-Dawley rats were randomly divided into 5 groups (normal group, model group, PGB group, EA group and PGB+EA group). The model was prepared by middle cerebral artery occlusion (MCAO). Two week after modeling, rats were given PGB, EA, or a combination of the 2 in continuous treatment for 2 successive weeks. 14 days after modeling, expressions of BDNF and SCF protein in the caudate putamen (CPu) were detected by immunohistochemistry.
RESULTS: Positive expression of BDNF and SCF protein was found in the right caudate putamen of each group of rats. Expressions of BDNF and SCF in the CPu of the model group were higher than normal group (P<0.05). Compared with the model group, the expressions of BDNF and SCF in the CPu of the PGB group, the EA group, and the PGB plus EA group increased significantly (P<0.05). The expressions of BDNF and SCF obviously increased in the PGB plus EA group compared to those of the EA group and the PGB group (P<0.05).
CONCLUSIONS: PGB and EA up-regulated the expressions of BDNF and SCF protein in the CPu of focal cerebral ischemia rats, and the combination of PGB+EA has a synergistic effect on the recovery from cerebral ischemia.

Keywords: Brain Ischemia, Brain-Derived Neurotrophic Factor, Caudate Nucleus, Electroacupuncture, Gastrodia, Stem Cell Factor

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