Research on the academic thought of distinguished veteran doctors of traditional Chinese medicine based on Mendelian randomization: a case study of the causation between Sjögren’s syndrome and rheumatoid arthritis

Abstract

Aim: This study investigated the causation between Sjögren’s syndrome (SS) and rheumatoid arthritis (RA) based on Mendelian randomization (MR), with the purpose of promoting research on the academic thought of distinguished veteran doctors of traditional Chinese medicine (TCM) via bioinformatics with information technology and providing new basis for better inheriting and carrying forward the valuable experience of a National Master of TCM, Zhizheng Lu. Methods: The causation between RA and SS in TCM was inferred from the perspective of coordination between dryness and dampness. For further assessment, MR was performed based on the summary data of genome-wide association studies (GWAS), with genetic loci closely related to SS(instrumental variables (IVs)), RA(research outcome), inverse-variance weighted (IVW) and MR-Egger regression and weighted median (WME) ( main MR methods). Heterogeneity was evaluated by Cochran Q test, pleiotropy by MR-Egger regression, and robustness by the Leave-One-Out method. Results: Except for MR-Egger, all other methods showed a clear statistical significance in the association between SS and RA (P<0.05). Conclusion: This study, based on the academic thought of distinguished TCM veteran doctor and the thought “moistening dryness” of National Master of TCM, Zhizheng Lu, speculated that there may be a potential association between SS and RA. MR results demonstrated the clear genetic causation between SS and RA, and the guiding role of the academic thought of distinguished TCM veteran doctor in clinical practice genetically.