Objective To observe the effect of moxibustion at acupoint-open on-time （Linggui Bafa） on immune function and nuclear factor-κB (NF-κB) signaling pathway in aging rats, so as to reveal its underlying mechanism of anti-agingt. Methods Forty SD rats were randomly divided into control, model, Linggui Bafa and Shenque (CV8) groups (n=10 in each group). Aging model was established by intraperitoneal injection of D-galactose (300 mg/kg) for 42 days. Moxibustion was applied at acupoint-open on-time or CV8 once daily for 28 days. The serum levels of TNF-α, IgG, IgA and IgM were detected by ELISA. The spleen index of rats was calculated. The expression of NF-κB p65 and NF-κB inhibitor protein (IκB) α mRNA of spleen tissues was detected by real-time PCR. Results Compared with the control group, the expression level of serum TNF-α, the mRNA expression levels of NF-κB p65 and IκBα in the model group was significantly increased (P 0.05). Conclusion Moxibustion at both acupoint-open on-time and CV8 can enhance the immune function of aging rats, which may be related to its effects in inhibiting NF-κB signaling pathway.
To observe the effect of moxibustion on serum adiponectin content, and expression of adiponectin and adiponectin receptor in adipose tissue in Alzheimer's disease (AD) rats, so as to explore its mechanism underlying improvement of AD.Fifty male SD rats were randomly divided into control, model, Shenque (CV8), Zusanli (ST36) and CV8＋ST36 groups (n＝10 in each group). The AD model was established by intraperitoneal injection of D-galactose (400 mg•kg－1•d－1) for 5 weeks and scopolamine hydrobromide (3 mg •kg－1•d－1) for 2 weeks. Moxibustion was applied to CV8, ST36 and CV8＋ST36 respectively for 3 moxa-cones every time, once daily for 5 weeks. Morris water maze tests were used to assess the rats' learning-memory ability. The contents of serum adiponectin were assayed using ELISA, and the expression of adiponectin and adiponectin receptor in the adipose tissue was detected by quantitative real-time PCR and Western blot, separately.Following modeling, the average escape latency of Morris water maze tests was significantly prolonged (P<0.05), the content of serum adiponectin and the expression level of adiponectin mRNA in adipose tissue were significantly decreased (P<0.01), the expression of adiponectin receptor protein significantly decreased in the model group relevant to the control group (P<0.01). After the intervention, the average escape latency was significantly shortened (P<0.05), the decreased serum adiponectin content and adiponectin mRNA expression, and the decreased adiponectin receptor protein expression in adipose tissue were all reversed in the 3 treatment groups (P<0.01，P<0.05). No significant differences were found among the three moxibustion groups in the above indexes (P>0.05).Moxibustion at CV8, ST36 and CV8＋ST36 is effective in up-regulating serum adiponectin content，adiponectin mRNA expression and adiponectin receptor protein expression in adipose tissue, which may provide evidence for clinical election of acupoints.
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