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Updated: Mar 19, 2026
Functional Interrogation of Adult Hypothalamic Neurogenesis with Focal Radiological Inhibition
Published on: November 14, 2013
[Effect of mouse nerve growth factor on cognitive impairment in whole brain irradiation rats]
1Department of Neurology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.
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; the numbers of crossing hidden platform in these 3 groups were 3.00± 1.08, 1.50± 1.08, 0.38± 0.48 times (P<0.01). EB leakage of these 3 groups were 0.14±0.14, 0.66±0.20 and 1.36±0.27 μg/g (P<0.05). In immunofluorescence, expressions of neuN, vWF and ZO-1: 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.
