Background: Rheumatoid arthritis (RA) is a chronic inflammatory disabling autoimmune disorder. Little is known regarding the association between the gut microbiome and etiopathogenesis of RA. We aimed to dissect the differences in gut microbiomes associated with RA in comparison to healthy individuals and, in addition, to identify the shifts in the bacterial community in association with disease activity; Methods: In order to identify compositional shifts in gut microbiomes of RA patients, V3-V4 hypervariable regions of 16S rRNA were sequenced using Illumina MiSeq. In total, sixty stool samples were collected from 45 patients with RA besides 15 matched healthy subjects; Results: Notably, RA microbiomes were significantly associated with diverse bacterial communities compared with healthy individuals. Likewise, a direct association between bacterial diversity and disease activity was detected in RA patients (Kruskal Wallis; p = 0.00047). In general, genus-level analysis revealed a positive coexistence between RA and Megasphaera, Adlercreutzia, Ruminococcus, Bacteroides, Collinsella, and Acidaminococcus. Furthermore, Spearman correlation analysis significantly stratified the most dominant genera into distinct clusters that were mainly based on disease activity (r ≥ 0.6; p ≤ 0.05). The predictive metabolic profile of bacterial communities associated with RA could support the potential impact of gut microbiomes in either the development or recovery of RA; Conclusions: The overall shifts in bacterial composition at different disease statuses could confirm the cross-linking of certain genera either to causation or progression of RA.

Article informationBackground: Rheumatoid arthritis [RA] is a type of progressive disease characterised by inflammation in the synovial tissues resulting in deformity and functional impairment. Fibromyalgia [FM] is a well-known comorbidity in RA which may change the physical evaluation and incorrectly affect the degree of RA treatment. The Aim of the work:To evaluate FM in patients with RA and its impact on disease activity, functional, and psychological status. Patients and methods: The study included 1200 patients with RA. Individuals were divided based on their FM status. All patients were assessed clinically and evaluated by the Health Assessment Questionnaire for pain [HAQ-pain], the Multidimensional Assessment of Fatigue [MAF], the Pittsburgh Sleep Quality Index [PSQI], the Beck Depression Inventory-II [BDI-II], and the Modified Health Assessment Questionnaire for functional disability [MHAQ]. The Disease Activity Score with ESR [DAS28-ESR] was used to assess RA disease activity in 28 joints. FM and RA were diagnosed using the criteria of the American College of Rheumatology [ACR].Results: Among our patients with RA, the prevalence of FM was 37%. Patients with FM had an increased proportion of females, were older, had a more prolonged disease duration, and had more protracted morning stiffness than patients without FM. Scores of DAS28 were considerably higher in RA patients with FM in comparison to those with only RA [5.70 ±1.19, 4.48 ± 1.26; P < 0.001] respectively. Concurrent FM also had worse HAQ-pain, MHAQ, fatigue, and depression scores, as well as more frequent sleep problems. Conclusion:In patients with RA, coexisting FM was associated with greater activity of the disease and impairments in functional level. FM was linked to higher rates of depression and fatigue, as well as an increased prevalence of sleep problems. The recognition and evaluation of such psychiatric disorders may help patients with RA achieve therapeutic improvement or remission.

Background Rheumatoid arthritis (RA) is an autoimmune systemic condition that primarily affects all synovial joints, eventually leading to deformity and clinical disability. Much progress has been made in the evaluation of inflammation and disease activity in recent years; however, other factors that can influence these patients’ quality of life, including depression, stress, fatigue, sleep problems, fibromyalgia, sexual activity, and obesity, are often not evaluated by rheumatologists. Our purpose was to explore depressive symptoms in patients with RA and determine how they connected to other aspects of the disease, including pain severity, disease activity, and sleep quality. Results A cross-sectional study including 1200 patients with RA was performed. Paints with RA were classified into two groups based on the presence or absence of depressive symptoms using the Beck Depression Inventory-II (BDI-II). Group 1 included patients with both RA and depressive symptoms of varying severity; group 2 included patients with RA but without depressive symptoms. The patients underwent clinical evaluation and application of the Pittsburgh Sleep Quality Index (PSQI), Health Assessment Questionnaire for pain (HAQ-pain), and the Multidimensional Assessment of Fatigue scale (MAF). RA disease activity was evaluated using the DAS28 score. Depressive symptoms of varying severity were prevalent in 96% of our patients with RA, of whom 43.3% had minimal depression, while 13.7% had severe depression. The RA group with depression had a longer duration of disease, prolonged morning stiffness, and high disease activity measured by the DAS28 score than patients with only RA. In RA patients with concomitant depression, pain, sleep, and fatigue scores were also worse. Conclusions The presence of depression among patients with RA was associated with worse DAS28, HAQ, PASQI, and fatigue scores. Screening and recognition of such psychosocial disorders may help patients achieve optimal disease control and a good outcome.

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Background Ankylosing spondylitis (AS) is a chronic inflammatory disorder primarily involving the sacroiliac joints and spine. It is associated with both articular and extra-articular clinical manifestations. Pulmonary involvement is a well-recognized comorbidity of AS, even among patients with early disease. The availability of high-resolution computed tomography (HRCT) has enabled better visualization of the entire lung parenchyma and earlier identification of lung pathologies, ranging from mild to more severe involvement, which were previously missed on X-rays. The aim of the study is to establish the role of HRCT in the detection of pleuro-parenchymal manifestations of AS and to look for correlations between these findings and AS activity. Results Lung CT scans were done for all our patients and 27 patients (90%) had positive HRCT thoracic findings, while the remaining 3 patients (10%) had a normal HRCT thoracic study. Lower lobe fibrotic changes were the most common finding seen in 20 patients (66.7%) followed by bronchial wall thickening in 13 patients (43.3%) and upper and lower fibrotic changes seen in 9 patients (30%). HRCT thoracic findings were more prominent in late AS (disease duration ≥ 10 years) (13 of 13 patients); while 14 of 17 patients with early AS (disease duration < 10 years) had mildly abnormal HRCT findings. The result of statistical analysis showed that there was negative correlation between thoracic findings and disease activity assessed by BASDAI and this correlation was insignificant (p value = 0.5). Conclusion HRCT offers an accurate and safe method of assessment of lung disease in patients with AS and without respiratory symptoms. Although there was no correlation between pulmonary findings and AS activity assessed by BASDAI, a positive correlation, albeit insignificant, between pulmonary involvement and disease duration had been found.