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Effect of moxibustion at Shenshu (BL 23) on the ethology, corticosterone and glucocorticoid receptor in aging rats / 针灸推拿医学(英文版)
Journal of Acupuncture and Tuina Science ; (6): 250-256, 2016.
Article in Chinese | WPRIM | ID: wpr-495784
ABSTRACT

Objective:

To observe the effect of moxibustion on learning and memory abilities, corticosterone and glucocorticoid receptor (GR) in subacute aging rats.

Methods:

Twenty four Sprague-Dawley (SD) rats were randomly divided into a normal group, a model group and a moxibustion group, 8 rats in each group. Rats in the model group and the moxibustion group were subcutaneously injected with 25% D-galactose [125 mg/(kg·bw)] for 40 d continuous; rats in the normal group were injected with saline at the same position for 40 d continuous. Rats in the moxibustion group were given mild moxibustion at bilateral Shenshu (BL 23) at the same time of modeling; rats in the normal group and the model group were only identically grabbed without moxibustion for 40 d. The learning and memory abilities of rats were observed using the Morris water maze at the end of the experiment. Abdominal aorta blood and thymus were collected after water maze experiment. Enzyme-linked immunosorbent assay (ELISA) was used to detect serum corticosterone level, and immunohistochemical method was used to detect the expression of thymus GR.

Results:

Compared with the normal group, rats in the model group showed that a significantly longer escape latency time (P<0.01) on the third and the fourth days; number of times crossing the platform in 70 s significantly reduced (P<0.01); activity times in the fourth quadrant significantly decreased (P<0.05); serum corticosterone levels increased (P<0.01); thymus GR expression decreased (P<0.05). Compared with the model group, rats in the moxibustion group showed that the escape latency times were significantly shorter on the third, the fourth and the fifth days (P<0.01,P<0.05); number of times crossing the platform in 70 s significantly increased (P<0.05); activity times in the fourth quadrant significantly increased (P<0.05); serum corticosterone levels decreased (P<0.05); thymus GR expression increased (P<0.05).

Conclusion:

Moxibustion could improve the learning and memory abilities of subacute aging rats, down-regulate serum corticosterone levels, and increase thymus GR content.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Journal of Acupuncture and Tuina Science Year: 2016 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Journal of Acupuncture and Tuina Science Year: 2016 Type: Article