Effect of Electroacupuncture on the Proliferation of Stem Cells in the Subependymal Zone of the Lateral Ventricle of the Brain in Rats with Hyperlipemia and Cerebral Ischemia
- VernacularTitle:电针对高脂血症合并脑缺血大鼠侧脑室室管膜下区神经干细胞增殖的影响
- Author:
Xiujun REN
;
Huifang MA
;
Ya TU
- Publication Type:Journal Article
- Keywords:
Electroacupuncture;
Hyperlipemia with cerebral ischemia;
Nestin;
PCNA;
Subependymal zone
- From:
Acupuncture Research
2010;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the effect of electroacupuncture (EA) and acupuncture (A) on the proliferation of stem cells in the subependymal zone (SPZ) of the lateral ventricle and the frontal lobe cortex in hyperlipemia(HL) combined with cerebral ischemia (CI) rats. Methods A total of 72 male SD rats were randomized into control,HL,HL+ EA,CI,CI+A,HL+CI,HL+CI+EAⅠ and HL+CI+EAⅡgroups (n= 9 /group).HL model was established by feeding the animals with high fat forage for 6 weeks and CI model was established by FeCl3-induced occlusion of the unilateral middle cerebral artery. EA was applied to "Sanyinjiao" (SP 6) and "Fenglong" (ST 40) once daily for 17 days for HL+ EA group; and acupuncture to "Baihui" (GV 20) and "Shuigou" (GV 26) once daily for 7 days for CI+A group. For HL+CI+EA Ⅰ group,EA was applied to SP 6+ST 40 first before CI,once daily for 10 days,followed by EA of SP 6+ST 40 and acupuncture of GV 20+GV 26 for 7 days after CI. For HL+CI+EA Ⅱ group,no treatment was given before CI,then,acupuncture of GV 20+GV 26 and EA of SP 6+ST 40 were given once daily for 7 days after CI.The immunoactivity of Nestin and proliferation cell nuclear antigen (PCNA) of SPZ was detected by immunohistochemistry.Results In comparison with normal control group,the numbers of both Nestin and PCNA immunoreaction (IR) positive cells in the dorsolateral extension and the wall of the lateral ventricle of the brain increased significantly in CI and HL+CI groups (P0.05). Conclusion EA can upregulate Nestin and PCNA expression of the dorsolateral extension and the wall of the lateral ventricle of the brain on the ischemic side in rats with CI,and with HL+CI,which may contribute to its effects in promoting the proliferation and migration of neural stem cells in the brain.
