Effects of hyperbaric oxygen combined with electroacupuncture on Nogo-A and NgR receptors in rats with spinal cord injury
10.3760/cma.j.cn311847-20191212-00388
- VernacularTitle:高压氧联合电针治疗对脊髓损伤大鼠Nogo-A及NgR受体的影响
- Author:
Xiaojuan XIE
1
;
Huiping PENG
;
Zeqi JIAO
;
Shiyue WANG
;
Sujian ZHOU
Author Information
1. 福州，福建中医药大学
- Publication Type:Journal Article
- Keywords:
Hyperbaric oxygen;
Electroacupuncture;
Spinal cord injury;
Nogo-A;
NgR
- From:
Chinese journal of nautical medicine and hyperbaric medicine
2020;27(3):265-269
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the effects of hyperbaric oxygen (HBO) combined with electroacupuncture on the myelin inhibitory associated proteins (Nogo-A and NgR receptor) in rats with spinal cord injury.Methods:A total of 84 female SD rats were randomly divided into four groups, namely, model group, HBO group, electroacupuncture group, and combined treatment group. After successful modeling, the model group did not receive intervention, and the other groups were treated accordingly. Samples were collected on the 3, 7, and 14 d after the injury for evaluating the injured rats with Basso, Beattie, Bresnahan (BBB) Locomotor Rating Scale, and performing the HE staining and related gene detection on them.Results:After the injury on the 3, 7, and 14 d, the BBB scores of the HBO group, the electroacupuncture group, and the combined treatment group were significantly higher than those of the model group ( P<0.01), and the scores of the combined treatment group were higher than those of the HBO group and the electroacupuncture group, but there was no significant difference between the score of the HBO group and that of the electroacupuncture group. After the injury on the 3, 7, and 14 d, Nogo-A mRNA expression levels in the HBO group, the electroacupuncture group, and the combined treatment group were all lower than those in the model group ( P<0.05). After the injury on the 7 d and 14 d, the expression levels of NgR mRNA in the HBO group (0.49±0.53, 0.52±0.47), the electroacupuncture group (0.53±0.58, 0.58±0.36), and the combined treatment group (0.16±0.13, 0.20±0.13) were all lower than those in the model group (1.33±1.26, 1.03±0.30) ( P<0.05). Moreover, the Nogo-A and NgR mRNA expression levels in the combined treatment group were lower than those in the HBO group and the electroacupuncture group, while the difference between the HBO group and the electroacupuncture group was not statistically significant ( P>0.05). Conclusion:Compared with monotherapy, the combined treatment of spinal cord injury in rats can inhibit the expressions of Nogo-A and NgR mRNA better, reduce cell injury, and promote the growth of spinal cord fiber bundle and the recovery of motor function.
