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. 2021 Apr 3:2021:6637554.
doi: 10.1155/2021/6637554. eCollection 2021.

Effect of Moxibustion on β-EP and Dyn Levels of Pain-Related Indicators in Patients with Rheumatoid Arthritis

Yingni Wang  1 , Siyu Tao  1 , Zeyun Yu  1 , Yun Luo  1 , Yuan Li  2 , Jie Tang  2 , Guanhua Chen  1 , Rouxian Shuai  1 , Xinyue Hu  1 , Ping Wu  1
Affiliations

Effect of Moxibustion on β-EP and Dyn Levels of Pain-Related Indicators in Patients with Rheumatoid Arthritis

Yingni Wang et al. Evid Based Complement Alternat Med. .

Abstract

Background: Rheumatoid arthritis (RA) is a systemic immunodeficiency disease characterized by persistent synovial inflammation, pannus formation, and bone and cartilage destruction, resulting in joint malformations and function decline.

Objective: The purpose of this study is to evaluate the effect of moxibustion on clinical symptoms and levels of pain-related indicators beta-endorphin (β-EP) and dynorphin (Dyn) in patients with RA and to explore the potential anti-inflammatory and analgesic mechanisms of moxibustion in RA treatment.

Methods: A total of 64 patients with RA who met the inclusion criteria were randomly and equally classified into the control and treatment groups. The control group received conventional treatment (oral methotrexate, folate, or leflunomide prescribed for a long time). The treatment group was treated with moxibustion at ST36 (Zusanli), BL23 (Shenshu), and Ashi points with respect to the control group. Patients' clinical symptoms and routine inspection indexes (rheumatoid factor [RF], erythrocyte sedimentation rate [ESR], and C-reactive protein [CRP]) were recorded before and after treatment. Serum levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), β-EP, and Dyn were determined by enzyme-linked immunosorbent assay (ELISA). The software SPSS24.0 was used for statistical analysis.

Results: (1) Compared with the pretreatment result, both of the two groups' clinical symptoms and routine inspection indexes (RF, ESR, and CRP) improved (P < 0.05), and the improvement of clinical symptoms in the treatment group outperformed that in the control group (P < 0.05). (2) TNF-α and IL-1β levels decreased significantly in the treatment group after treatment (P < 0.01), while no significant difference was observed in the control group (P > 0.05). (3) β-EP and Dyn levels in the treatment group were significantly increased after treatment (P < 0.01, P < 0.01), but the control group showed no significant difference (P > 0.05, P > 0.05). It is worth mentioning that the serum TNF-α, IL-1β, β-EP, and Dyn levels between the two groups were significantly different after 8 weeks of treatment (P < 0.05). (4) Differences in the serum β-EP and Dyn levels in the patients of the treatment group were correlated with TNF-α and IL-1β levels after treatment, and the correlation was mainly negative (r < 0).

Conclusion: Moxibustion can improve joint pain in patients with RA using conventional western medicine. One of the mechanisms may affect the serum β-EP and Dyn levels by downregulating the inflammatory factors to play an anti-inflammatory and analgesic role.

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Conflict of interest statement

The authors declare that they have no conflicts of interest.

Figures

Figure 1
Figure 1
Acupoints. ST36 (Zusanli) is located 3 inches below the outer knee, 1 inch apart from the tibia front margin, BL23 (Shenshu) is located below the second lumbar spine process, 1.5 inches away from the posterior midline, and “Ashi” points are located at where swelling and paining occur.
Figure 2
Figure 2
The operation diagram of moxibustion. (a) Participant was treated at BL23 (Shenshu) acupoint. (b) Participant was treated at ST36 (Zusanli) acupoint. (c) and (d) participants were treated at Ashi acupoints.
Figure 3
Figure 3
Technology roadmap.
See this image and copyright information in PMC

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