Objective
To evaluate the efficacy of Wangbi Capsules combined with leflunomide in treating rheumatoid arthritis (RA) of the damp-heat obstruction type and the changes in serum granulocytemacrophage colony-stimulating factor (GM-CSF), tumor necrosis factor-alpha (TNF-α), T cell subsets, etc.before and after treatment.
Methods
A total of 90 patients in the Rheumatology and Immunology Department of the First Affiliated Hospital of Hebei North University from February 2022 to October 2023 who met the diagnostic criteria for RA in the Guidelines for the Diagnosis and Treatment of Rheumatoid Arthritis in China and whose traditional Chinese medicine (TCM) dialectical theory was damp-heat blocking collateralcollateral syndrome were selected as the study objects.Patients who were intolerant to methotrexate therapy,recently received biologic agents or immunosuppressant treatment, with contraindications to the drugs of this study and had diseases affecting the observational indicators of this study were excluded.The enrolled patients were divided into two groups by random number table method, 45 cases each.The control group were treated with leflunomide for 12 weeks, and the observation group additionally accepted Zobi capsules based on this treatment.Serum GM-CSF, tTNF-α, T cell subsets, visual analogue sale (VAS), 28 joint disease activity score(DAS28), number of tenderness joints, number of swollen joints, erythrocyte sedimentation rate (ESR) and Creactive protein (CRP) were compared between the two groups before treatment and 12 weeks after treatment.The main disease and secondary disease scores were statistically analyzed.The measurement data of nonnormal distribution were described by M (P25, P75) and rank sum test was used.The measurement data of normal distribution are described by (
±s) and t test was used.
Results
After 12 weeks of treatment, VAS score,DAS28, number of tender joints and swelling joints in both groups were lower than before treatment; the levels of GM-CSF, TNF-α, ESR and CRP were all lower than the data before treatment, and the differences were statistically significant (observation group t=7.206, 5.402, 16.808, 8.153, 17.283, 15.279, 22.604, 20.716;control group t=4.826, 3.282, 9.117, 6.305, 5.279, 9.462, 9.206, 8.715, all P<0.05); After 12 weeks of treatment, VAS score, DAS 28 score, number of painful joints, number of swollen joints, GM-CSF, TNF-α,ESR, CRP levels and score differences in the observation group were lower than those in the control group, and the differences were statistically significant (t=3.782, 3.827, 4.280, 4.106, 8.226, 9.254, 6.118, 5.742;score differences t=4.193, 4.106, 5.394, 4.908, 9.240, 10.143, 7.506, 11.628; all P<0.05).After 12 weeks of treatment, the scores of main symptoms (joint swelling, adverse extension and flexion, morning stiffness and fever) in both groups were lower than before treatment; the scores of secondary symptoms (thirst, yellow urine,dry stool) in the observation group were lower than the data before treatment (observation group Z=11.076, 9.359,9.517, 4.938, 5.014, 4.017, 4.362; control group Z=4.271, 5.824, 4.293, 4.156; all P<0.05).After 12 weeks of treatment, the scores and differences of the main symptoms and secondary symptoms of the observation group were lower than those in the control group, and the differences were statistically significant (Z=7.626,3.527, 4.942, 3.642, 7.282, 4.722, 1.916; score differences Z=7.620, 3.426, 4.728, 3.517, 7.406, 4.826,4.806; all P<0.05).After 12 weeks of treatment, the ratios of cluster differentiation (CD)3+, CD4+, natural killer(NK) cells and CD4+/CD8+ in observation group were higher than before treatment, and CD8+ was lower than before treatment; after 12 weeks of treatment, the ratios and differences of CD3+, CD4+, NK cells and CD4+/CD8+in the observation group were higher than those in the control group, and the absolute values and differences of CD8+ were lower than those in the control group (observation group t=24.806,17.443,16.624,22.550,15.744;inter-group level t=9.557, 9.127, 7.014, 8.146, 7.682; difference between groups t=10.529,9.280,8.106,9.280,8.206;all P<0.05).The incidence of adverse reactions was 13.3% in the observation group and 15.6% in the control group, and the difference was not statistically significant (χ2=0.683, P>0.05).
Conclusion
Wangbi Capsules combined with leflunomide can reduce the immune inflammatory response in patients with damp-heat obstruction type RA, alleviate joint pain and primary and secondary symptoms, improve curative effect, and do not increase adverse reactions.