Abstract
The purpose of this research was to characterize the microbiota of patients with psoriatic arthritis (PsA) and to compare the relationship between the microbiota and peripheral lymphocyte subsets and cytokines. We collected stool samples from 13 PsA patients and 26 sex- and age-matched healthy controls (HCs) and researched the gut microbiota by sequencing the V3-V4 variable region of the bacterial 16S rRNA gene with the Illumina Miseq PE300 system. Flow cytometry was used to assess the peripheral lymphocyte subsets in these participants. Record measures of disease activity such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR). Alpha and beta diversity were assessed using results from QIIME2. Panel demonstrated the average relative abundance of the different genera in PsA and HCs. Correlation between clinical parameters and the relative abundance of the genus in samples was assessed by the Pearson correlation analysis using R (version 4.0.1). Compared with HC, the abundance of gut microbiota (Chao 1 and ACE) decreased in patients with PsA, and the diversity of bacteria (Shannon and Simpson indices) also decreased in PsA (Fig. 1a). β Diversity analysis indicated differences in microbial communities between PsA and HC (Fig. 1b, r = 0.039, p = 0.264, ANOSIM). Furthermore, 18 bacterial groups were significantly different at the genus level in PsA compared to HCs (p < 0.05) (Fig. 2).In the phylum and genus, lymphocyte subsets and cytokines are associated with the microbiota. The gut microbiota of patients with PsA differs from HC, which was closely related to lymphocyte subsets.
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Data Availability
The data that support the findings of this study are available on request from the corresponding author, [Xiao-Feng Li]，upon reasonable request.
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Funding
This work was supported by the National Natural Science Foundation of China (Grant number 82001740) and the Natural Science Foundation of Shanxi Province (Grant number 202203021221269). Author Sheng-Xiao Zhang has received research support.
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Study design and manuscript writing: J.L. Data extraction, quality analysis, and interpretation of data: J.L. All authors participated in drafting the article or critically revising important intellectual content, and all authors approved the final version to be published by Dr. Li. Full access to all data in the study and responsibility for the integrity of data and the accuracy of the data analysis.
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This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of the Second Hospital of Shanxi Medical University (2019-YX-107).
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Liu, J., Zhang, SX., Zhao, R. et al. Dysbiosis of the Gut Microbiota in Patients with Psoriatic Arthritis is Closely Related to Lymphocyte Subsets and Cytokines. Inflammation (2024). https://doi.org/10.1007/s10753-024-01971-1
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DOI: https://doi.org/10.1007/s10753-024-01971-1