Effect of mouse nerve growth factor on cognitive impairment in whole brain irradiation rats
2016
Objective
To investigate the positive effects of mouse nerve growth factor(mNGF) on cognitive impairment in whole brain irradiation rats.
Methods
Fifty-five male Sprague-Dawley rats were randomly divided into normal control group, mNGF treated group, saline treated group.mNGF treated group and saline treated group were cranial irradiated at a single dose of 12 Gy by X-ray.30 days after radiation each group were treated with correspondent drugs.60 days after radiation, Morris water maze experiment, EB leakage of the brain, and expressions of neuN, vWF, ZO-1 in hippocampus by immunofluorescence, and expressions of neuN, vWF, ZO-1, VEGF and GFAP in hippocampus by Western blot were tested and analyzed.
Results
The escape latencies: normal control group mNGF treated group> saline treated group.In Western blot, expressions of neuN, vWF and ZO-1: normal control group> mNGF treated group> saline treated group, yet the expressions of VEGF and GFAP: normal control group< mNGF treated group< saline treated group.
Conclusion
mNGF ameliorates cognitive impairment after whole brain irradiation.
Key words:
Cranial irradiation; Nerve growth factor; Cognition disorders
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