Journal
NEURAL REGENERATION RESEARCH
Volume 10, Issue 5, Pages 753-759Publisher
MEDKNOW PUBLICATIONS & MEDIA PVT LTD
DOI: 10.4103/1673-5374.156971
Keywords
nerve regeneration; hypoxic-ischemic brain damage; ginsenoside Rgl; neural stem cells; cell transplantation; cell differentiation; cognition; nerve reconstruction; neural regeneration
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Funding
- Natural Science Foundation of Chongqing in China [CSTC2011jjA0013]
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Ginsenoside Rgl is the major pharmacologically active component of ginseng, and is reported to have various therapeutic actions. To determine whether it induces the differentiation of neural stem cells, and whether neural stem cell transplantation after induction has therapeutic effects on hypoxic-ischemic encephalopathy, we cultured neural stem cells in 10-80 [mu M ginsenoside Rg1. Immunohistochemistry revealed that of the concentrations tested, 20 mM ginsenoside Rgl had the greatest differentiation-inducing effect and was the concentration used for subsequent experiments. Whole-cell patch clamp showed that neural stem cells induced by 20 mu M ginsenoside Rgl were more mature than non-induced cells. We then established neonatal rat models of hypoxic-ischemic encephalopathy using the suture method, and ginsenoside Rgl-induced neural stem cells were transplanted via intracerebroventricular injection. These tests confirmed that neural stem cells induced by ginsenoside had fewer pathological lesions and had a significantly better behavioral capacity than model rats that received saline. Transplanted neural stem cells expressed neuron-specific enolase, and were mainly distributed in the hippocampus and cerebral cortex. The present data suggest that ginsenoside Rgl-induced neural stem cells can promote the partial recovery of complicated brain functions in models of hypoxic-ischemic encephalopathy.
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