Search for: rheumatoid arthritis methotrexate autoimmune disease biomarker gene expression GWAS HLA genes non-HLA genes
ID | PMID | Title | PublicationDate | abstract |
---|---|---|---|---|
31842032 | Metabolic control of T cells in autoimmunity. | 2020 Mar | PURPOSE OF REVIEW: Th1, Th17, and Treg cells play distinct roles in autoimmune diseases, including systemic lupus erythematosus, multiple sclerosis, and rheumatoid arthritis. During the last 5 years we have learned that T-cell metabolism affects cell survival, differentiation and fate of T cells. RECENT FINDINGS: We highlight recent studies which have reported on T-cell metabolism in autoimmune diseases, differences in cellular metabolisms in T-cell subsets among various diseases and transcription factors which control the expression and function of central metabolic enzymes. SUMMARY: Distinct metabolic processes control the function of T-cell subsets in autoimmune disease and known transcription factors control the activity of metabolic enzymes. The revealed insights into the metabolic events of immune cells offer opportunities for new therapeutic approaches. | |
29992828 | Emotion regulation contributes to the well-being of patients with autoimmune diseases thro | 2020 Nov | This prospective study aimed to examine whether illness-related negative emotions mediate the relationship of cognitive reappraisal and expressive suppression to the well-being of 99 patients with rheumatoid arthritis or multiple sclerosis. After adjusting for disease and patient-related parameters, only cognitive reappraisal was associated with physical and psychological well-being through emotions. Expressive suppression was associated with psychological well-being only for patients reporting less use of cognitive reappraisal. These results underscore the need for prospective studies that will investigate the long-term impact of emotion regulation on adaptation to chronic illness and the conditions under which this impact takes place. | |
33366566 | Characterization of the complete chloroplast genome of Aconitum pendulum (Ranunculaceae), | 2020 Jan 8 | Aconitum pendulum is an endemic medicinal herb, which has effects of relieving pains and is widely used to treat frostbite, rheumatoid arthritis, and so on. In this study, we sequenced the complete chloroplast genome with Illumina sequencing technology. The complete chloroplast genome length is 155,597 bp, shows a typical tetrad structure, which manifests as one large and one small single copy (LSC and SSC) regions of 86,336 and 16,961 bp, isolated by two inverted repeat regions (IRs) of 26,150 bp. This study annotated altogether 131 unique genes, consisting of 86 protein-encoding genes, 8 rRNA, and 37 tRNA. According to the maximum likelihood phylogenetic tree based on 20 complete chloroplast genomes, A. pendulum shows close association with additional Aconitum subgenus. The chloroplast genome-wide for A. pendulum would help to conserving the precious natural populations. | |
32240351 | Correction to: Biologic monotherapy in the biologic naïve patient with rheumatoid arthrit | 2020 Jul | In the original article, the corresponding author's given name and middle name were interchanged. | |
32199591 | [Synovial fluid cytodiagnosis]. | 2020 Apr | Synovial fluid samples represent only a very small percentage of routine work in a cytology laboratory. However, its microscopic examination allows us to observe different types of cells, particles and structures that, due to their morphological characteristics, may provide relevant data for cytodiagnosis. We present certain aspects related to arthrocentesis, the relationship between the gross appearance of synovial fluid and certain pathological processes, as well as the different techniques for processing and staining the smears. Furthermore, we describe the main cytological findings in various pathological conditions of the synovial joints, such as infections (bacterial and fungal), non-infectious inflammatory type (osteoarthrosis, rheumatoid arthritis, connective tissue diseases) and tumoral, distinguishing between primary and metastatic, both solid and haematological neoplasms. | |
33115633 | Epigenetics, pregnancy and autoimmune rheumatic diseases. | 2020 Dec | Autoimmune rheumatic diseases (ARDs) are chronic conditions with a striking female predominance, frequently affecting women of childbearing age. Sex hormones and gender dimorphism of immune response are major determinants in the multifactorial pathogenesis of ARDs, with significant implications throughout reproductive life. Particularly, pregnancy represents a challenging condition in the context of autoimmunity, baring profound hormonal and immunologic changes, which are responsible for the bi-directional interaction between ARDs outcome and pregnancy course. In the latest years epigenetics has proven to be an important player in ARDs pathogenesis, finely modulating major immune functions and variably tuning the significant gender effects in autoimmunity. Additionally, epigenetics is a recognised influencer of the physiological dynamic modifications occurring during pregnancy. Still, there is currently little evidence on the pregnancy-related epigenetic modulation of immune response in ARDs patients. This review aims to overview the current knowledge of the role of epigenetics in the context of autoimmunity, as well as during physiologic and pathologic pregnancy, discussing under-regarded aspects in the interplay between ARDs and pregnancy pathology. The outline of a new ongoing European project will be presented. | |
32419824 | Chinese Herbal Medicines for Rheumatoid Arthritis: Text-Mining the Classical Literature fo | 2020 | BACKGROUND: Rheumatoid arthritis (RA) is an autoimmune disease characterized by multijoint swelling, pain, and destruction of the synovial joints. Treatments are available but new therapies are still required. One source of new therapies is natural products, including herbs used in traditional medicines. In China and neighbouring countries, natural products have been used throughout recorded history and are still in use for RA and its symptoms. This study used text-mining of a database of classical Chinese medical books to identify candidates for future clinical and experimental investigations of therapeutics for RA. METHODS: The database Encyclopaedia of Traditional Chinese Medicine (Zhong Hua Yi Dian) includes the full texts of over 1,150 classical books. Eight traditional terms were searched. All citations were assessed for relevance to RA. Results and Conclusions. After removal of duplications, 3,174 citations were considered. After applying the exclusion and inclusion criteria, 548 citations of traditional formulas were included. These derived from 138 books written from 206 CE to 1948. These formulas included 5,018 ingredients (mean, 9 ingredients/formula) comprising 243 different natural products. When these text-mining results were compared to the 18 formulas recommended in a modern Chinese Medicine clinical practice guideline, 44% of the herbal formulas were the same. This suggests considerable continuity in the clinical application of these herbs between classical and modern Chinese medicine practice. Of the 15 herbs most frequently used as ingredients of the classical formulas, all have received research attention, and all have been reported to have anti-inflammatory effects. Two of these 15 herbs have already been developed into new anti-RA therapeutics-sinomenine from Sinomenium acutum (Thunb.) Rehd. & Wils and total glucosides of peony from Paeonia lactiflora Pall. Nevertheless, there remains considerable scope for further research. This text-mining approach was effective in identifying multiple natural product candidates for future research. | |
32029347 | HPLC-MS/MS method for the determination and pharmacokinetic study of six compounds against | 2020 Mar 20 | Caulophyllum robustum Maxim (CRM) is a well-known traditional Chinese medicine (TCM) mainly present in the northeast, northwest and southwest regions of China, which is belong to the family Berberidaceae. The roots and rhizomes of CRM have been used as a famous TCM for the treatment of rheumatoid arthritis (RA). The selective, sensitive and accurate high-performance liquid chromatography-electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS) method for the determination and pharmacokinetic study cauloside H, leonticin D, cauloside G, cauloside D, cauloside C and magnoflorine in rat plasma was developed and validated in this paper. Chromatographic separation was achieved by using a Waters ACQUITY UPLC HSS T3 (100 mm × 2.1 mm, 1.7 μm) with gradient elution using a mobile phase consisting of acetonitrile and 0.1 % formic acid in water at a flow rate of 0.4 mL/min. The detection was performed in multiple reaction monitoring (MRM) mode and electrospray ionization (ESI) in positive and negative modes. The linearity, precision, accuracy, extraction recovery, matrix effects and stability were assessed to validate the current high-performance liquid chromatography/mass spectrometry (HPLC-MS) assay. Good linearity was achieved for each analyte with a correlation coefficient (r(2)) > 0.99). All the precision (RSD) data were less than 12.20 %, the accuracies ranged from -12.39 % to 10.55 %, the recovery rates from the rat plasma ranged from 85.48%-98.69 %, and the matrix effects ranged from 80.96 % to 91.35 %. The validated approach was successfully applied to study the pharmacokinetic characteristics of saponins and alkaloids in plasma after administering CRME to rats, and this assay provides a platform for studying the active components of multicomponent traditional Chinese medicines and provides useful information for further clinical studies. | |
31981364 | Methotrexate treatment for patients with psoriasis and risk of cutaneous melanoma: a neste | 2020 Oct | BACKGROUND: Cutaneous malignant melanoma (CMM) is a highly immunogenic tumour. Patients with an impaired immune system have an enhanced risk for CMM and a worse prognosis. Methotrexate (MTX) is an anti-inflammatory and immunosuppressive drug frequently used to treat patients with psoriasis. An association between MTX and risk of CMM has previously been demonstrated in patients with rheumatoid arthritis. OBJECTIVES: To investigate whether MTX increases the risk of CMM among patients with psoriasis. METHODS: A nested case-control investigation from a Swedish cohort of patients with psoriasis was conducted. Data were obtained from available Swedish registers and included 395 patients with psoriasis who had previously been cancer-free and had a first CMM in the time period from 1 January 2010 to 31 December 2016. A total of 10 randomly selected cancer-free patients with psoriasis were matched per case with respect to age (same birth year) and sex. The accumulated MTX doses in both groups were obtained. Crude odds ratios (ORs) for the proportion of MTX in the respective group were calculated using conditional logistic regression analyses. RESULTS: Of 395 patients with psoriasis who had CMM, 97 (25%) had filled a prescription of MTX; of 3950 controls, the corresponding number was 954 (24%). In a conditional logistic regression analysis, no association between MTX exposure (ever use) and risk for CMM was observed (OR 1·0, 95% confidence interval 0·8-1·3). Moreover, no indication of a dose-response association was observed. CONCLUSIONS: In this Swedish nested case-control study, the use of MTX was not associated with an enhanced risk for CMM. These findings are reassuring for dermatologists in everyday clinical practice. What is already known about this topic? Methotrexate (MTX) treatment has been linked to an increased risk for cutaneous malignant melanoma (CMM) in an Australian cohort of patients with rheumatoid arthritis. In a previous retrospective Swedish cohort investigation, patients who had exclusively been prescribed MTX by a dermatologist did not have an enhanced risk for CMM compared with MTX-unexposed individuals. Nevertheless, this cohort did not specifically include patients with psoriasis. What does this study add? This Swedish nested case-control investigation included 395 previously cancer-free patients with psoriasis who had CMM (cases) and 3950 matched cancer-free patients with psoriasis (controls). No association between MTX exposure and risk for CMM in patients with psoriasis was observed. The results are reassuring for dermatologists using MTX to treat patients with psoriasis. Linked Comment: Haugaard and Egeberg. Br J Dermatol 2020; 183:608-609. | |
33014492 | Eradication of Lomentospora prolificans Osteomyelitis of the Wrist with Combination Antifu | 2020 | Lomentospora prolificans is an emerging pathogen that is difficult to treat due to its intrinsic resistance to currently available antifungal agents. Current evidence demonstrates synergy between Azoles and Terbinafine against L. prolificans infections, while adjunct use of antifungal agent-loaded bone cement has also shown favourable outcomes. We report a case of an immunosuppressed adult with rheumatoid arthritis who developed L. prolificans osteomyelitis in his right wrist following trauma and subsequent exposure to commercially available fertiliser. The infection was successfully eradicated via a combination of aggressive, staged surgical source control, antifungal therapy using voriconazole and Terbinafine, and insertion of voriconazole-loaded bone cement into the wrist and carpus. The utility of this approach supports the synergistic effects of voriconazole and Terbinafine and, more broadly, the clinical benefits of antifungal-loaded bone cement, as demonstrated in previous case reports and in vitro studies. As such, combination antifungal therapy and voriconazole-loaded bone cement should be considered the therapy of choice in cases of osteomyelitis where L. prolificans is proven to be the causative organism. | |
32719606 | Assessment and Comparison of the Efficacy of Methotrexate, Prednisolone, Adalimumab, and T | 2020 | Mesenchymal stem cell (MSC)-based articular regeneration might be beneficial for both protecting and rebuilding cartilaginous tissues in the management of rheumatoid arthritis. However, it is unclear how current immunosuppressive strategies influence the multipotency of MSCs. The present study was undertaken to profile the direct effectiveness of major antirheumatic drugs including methotrexate, prednisolone, adalimumab, and tocilizumab on the multipotency of MSCs, with a special focus on chondrogenesis. The inhibitory effects of methotrexate on adipogenesis, osteogenesis, and chondrogenesis were observed to occur in a dose-dependent manner in an in vitro differentiation system. Prednisolone enhanced adipogenesis, but reduced alkaline phosphatase activity in osteoprogenitors and suppressed the formation of chondrospheroids. Adalimumab suppressed alkaline phosphatase activity, while tocilizumab diminished osteogenesis and chondrogenesis of MSCs in vitro. Chondrogenesis of antirheumatic drug-treated MSCs was also evaluated in vivo using a scaffolded spheroid-engrafted murine model. The biologics examined appeared to be relatively safe for cartilaginous formation, but methotrexate and prednisolone exhibited opposing influences on chondrogenesis. Taken together, these results reveal the direct efficacy of major antirheumatic agents on the multipotency of MSCs. Therefore, our findings suggest that optimization of medication protocols is further required for therapeutic approaches involving cartilaginous tissue engineering. | |
32342462 | Exercise and Chronic Pain. | 2020 | In this chapter, we describe the impact and etiology of chronic pain, the associated changes in the nervous system, and the mechanisms by which exercise may be able to affect and reverse these changes. Evidence for efficacy of exercise in different conditions associated with chronic pain is presented, with focus on chronic low back pain, fibromyalgia, osteoarthritis, rheumatoid arthritis, and migraines. While the efficacy of exercise and level of evidence supporting it vary in different diseases, exercise has direct and indirect benefits for most patients suffering from chronic pain. Effective exercise regimens include education and cognitive restructuring to promote behavioral activation and reconceptualization of what pain means, with the goal of gradually reversing the vicious cycle of pain, inertia, sedentary behavior, and worsening disability. Long-term, consistent, individualized exercise-based treatment approaches are most likely to result in improvements in pain and function. | |
32197752 | Eruptions in life-threatening rheumatologic diseases. | 2020 Jan | Dermatologic changes occur in a variety of rheumatic diseases. Skin can be the initial site of involvement, thus providing important clues for an accurate diagnosis based on cutaneous findings. Dermatologic findings can also be an indicator of systemic involvement and prognostic outcome; however, many connective tissue disorders have a wide variety of cutaneous manifestations, with significant overlap between different diseases. These skin signs often precede systemic clinical manifestations. Careful attention to characteristic dermatologic findings in Behçet's disease, systemic lupus erythematosus, rheumatoid arthritis, and various vasculitis can provide prompt therapeutic approaches in the case of life-threatening complications of systemically involved rheumatologic diseases. | |
32179280 | Structural elucidation and in vivo anti-arthritic activity of β-amyrin and polpunonic aci | 2020 May | Two natural products, compounds 1 and 2 were isolated from the root bark of Ziziphus abyssinica for the first time and were structurally elucidated as β-amyrin and polpunonic acid, respectively. Both compounds were further subjected to an in vivo study in rats to evaluate their anti-arthritic potency. Compared to the arthritic control group, rats treated with different doses of 1 or 2 (3, 10, and 30 mg/kg) exhibited significantly higher total change in body weight as well as lower arthritic scores and total change in paw edema and erythema. Histopathological examinations of the hind paws of the rats further demonstrated the beneficial effects of both compounds as they significantly reversed cartilage erosion, subchondral cyst, and Weichselbaum's lacunae formation. Evidence of bone remodeling was also observed in all groups of rats treated with 1 or 2. Hematological and serum biochemical parameters were not significantly affected by treatment of 1 or 2. Taken together, the results from the present study suggest potential therapeutic benefit of β-amyrin and polpunonic acid in rheumatoid arthritis and related inflammatory disorders. | |
33204288 | Integrating Network Pharmacology with Molecular Docking to Unravel the Active Compounds an | 2020 | OBJECTIVE: To explore the main components and unravel the potential mechanism of simiao pill (SM) on rheumatoid arthritis (RA) based on network pharmacological analysis and molecular docking. METHODS: Related compounds were obtained from TCMSP and BATMAN-TCM database. Oral bioavailability and drug-likeness were then screened by using absorption, distribution, metabolism, and excretion (ADME) criteria. Additionally, target genes related to RA were acquired from GeneCards and OMIM database. Correlations about SM-RA, compounds-targets, and pathways-targets-compounds were visualized through Cytoscape 3.7.1. The protein-protein interaction (PPI) network was constructed by STRING. Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were performed via R packages. Molecular docking analysis was constructed by the Molecular Operating Environment (MOE). RESULTS: A total of 72 potential compounds and 77 associated targets of SM were identified. The compounds-targets network analysis indicated that the 6 compounds, including quercetin, kaempferol, baicalein, wogonin, beta-sitosterol, and eugenol, were linked to ≥10 target genes, and the 10 target genes (PTGS1, ESR1, AR, PGR, CHRM3, PPARG, CHRM2, BCL2, CASP3, and RELA) were core target genes in the network. Enrichment analysis indicated that PI3K-Akt, TNF, and IL-17 signaling pathway may be a critical signaling pathway in the network pharmacology. Molecular docking showed that quercetin, kaempferol, baicalein, and wogonin have good binding activity with IL6, VEGFA, EGFR, and NFKBIA targets. CONCLUSION: The integrative investigation based on bioinformatics/network topology strategy may elaborate on the multicomponent synergy mechanisms of SM against RA and provide the way out to develop new combination medicines for RA. | |
32869533 | Ethnic Disparities in Atherosclerotic Cardiovascular Disease Incidence and Prevalence Amon | 2020 Sep | OBJECTIVE: Rheumatoid arthritis (RA) is associated with increased atherosclerotic cardiovascular disease (ASCVD). General population cohorts have shown African American individuals to have greater and Hispanic Americans to have lower cardiovascular disease prevalence when compared with non-Hispanic white individuals; however, the reasons for these findings are not clear. This systematic review seeks to describe the incidence and prevalence of ASCVD stratified by race/ethnicity within the US RA population. METHODS: MEDLINE, Embase, and Cochrane databases were searched for studies that reported incidence or prevalence of ASCVD (including, but not limited to, fatal and nonfatal stroke, myocardial infarction, and cardiovascular death) in those with RA. Abstracts and full texts were screened separately for inclusion by two reviewers, with a third reviewer to resolve discrepancies. RESULTS: We screened 2625 abstracts and fully reviewed 138 manuscripts. Twenty-one were included that cited at a minimum the percentage of non-Hispanic whites in their population. No publication meeting entry criteria initially stratified ASCVD by race/ethnicity. The average prevalent ASCVD in RA is 46.9% (95% CI: 46.8-47) (range of prevalent ASCVD: 30%-47%). The average incident ASCVD is 8.2% (95% CI: 8.14-8.25) (range of incident ASCVD 1%-46%). CONCLUSION: In this systematic review, we found a paucity of data on racially/ethnically diverse RA patients and ASCVD outcomes. Future studies should report the prevalence of ASCVD in various races/ethnicities with RA in the United States. These data would help inform clinicians on how best to manage cardiovascular disease risk in RA. | |
32747977 | The interplay between immunosenescence and age-related diseases. | 2020 Oct | The aging immune system (immunosenescence) has been implicated with increased morbidity and mortality in the elderly. Of note, T cell aging and low-grade inflammation (inflammaging) are implicated with several age-related conditions. The expansion of late-differentiated T cells (CD28(-)), regulatory T cells, increased serum levels of autoantibodies, and pro-inflammatory cytokines were implicated with morbidities during aging. Features of accelerated immunosenescence can be identified in adults with chronic inflammatory conditions, such as rheumatoid arthritis, and are predictive of poor clinical outcomes. Therefore, there is an interplay between immunosenescence and age-related diseases. In this review, we discuss how the aging immune system may contribute to the development and clinical course of age-related diseases such as neurodegenerative diseases, rheumatoid arthritis, cancer, cardiovascular, and metabolic diseases. | |
32397174 | Cytokine Release Syndrome in COVID-19 Patients, A New Scenario for an Old Concern: The Fra | 2020 May 8 | On 7 January 2020, researchers isolated and sequenced in China from patients with severe pneumonitis a novel coronavirus, then called SARS-CoV-2, which rapidly spread worldwide, becoming a global health emergency. Typical manifestations consist of flu-like symptoms such as fever, cough, fatigue, and dyspnea. However, in about 20% of patients, the infection progresses to severe interstitial pneumonia and can induce an uncontrolled host-immune response, leading to a life-threatening condition called cytokine release syndrome (CRS). CRS represents an emergency scenario of a frequent challenge, which is the complex and interwoven link between infections and autoimmunity. Indeed, treatment of CRS involves the use of both antivirals to control the underlying infection and immunosuppressive agents to dampen the aberrant pro-inflammatory response of the host. Several trials, evaluating the safety and effectiveness of immunosuppressants commonly used in rheumatic diseases, are ongoing in patients with COVID-19 and CRS, some of which are achieving promising results. However, such a use should follow a multidisciplinary approach, be accompanied by close monitoring, be tailored to patient's clinical and serological features, and be initiated at the right time to reach the best results. Autoimmune patients receiving immunosuppressants could be prone to SARS-CoV-2 infections; however, suspension of the ongoing therapy is contraindicated to avoid disease flares and a consequent increase in the infection risk. | |
32201301 | Safety and clinical effectiveness of Withania Somnifera (Linn.) Dunal root in human ailmen | 2020 Jun 12 | ETHNOPHARMACOLOGICAL RELEVANCE: Withania somnifera popularly known as Aswagandha or Indian Ginseng/Poison Gooseberry have thousands years of history of use in Indian traditional medicine. Besides, finding place root of the plant as Indian Ginseng, Ayurveda also uses root of this plant as general health tonic, adaptogenic, nootropic, immunomodulatory etc. With its widespread and growing use, it becomes prudent to scientifically evaluate and document both the efficacy and safety of this plant in humans. AIM OF THE STUDY: Aswagnadha root is rapidly gaining popularity abroad for use as medicine. Current article attempts to primarily review the human efficacy and safety of Aswagandha generated through clinical trials. METHODS: A systematic search both for indexed and non-indexed literature was made for W. somnifera using various search engines and databases and the details of research articles pertaining to all clinical trials/human studies, animal studies addressing safety issues of CNS, CVS, general toxicity, mutagenicity, genotoxicity, reproductive safety and herb-drug interactions were reviewed and compiled comprehensively from full texts. RESULTS: A total of 69 (39 pre-clinical and 30 clinical) studies documenting efficacy and safety aspects were identified and the desired information of these studies is comprehensively presented in this review. Retrieved thirty(30) human studies demonstrated reasonable efficacy of root preparations in subclinical hypothyroidism (1), schizophrenia (3), chronic stress (2), insomnia (2), anxiety (1), memory and cognitive improvement (2), obsessive-compulsive disorder (1), rheumatoid arthritis (2), type-2 diabetes (2), male infertility (6), fertility promotion activity in females (1), adaptogenic (3), growth promoter in children (3) and chemotherapy adjuvant (1). Reasonable safety of root preparations of Aswagandha has been established by these retrieved 30 human trials. No serious adverse events or any changes in haematological, biochemical or vital parameters were reported in these human studies. Only mild and mainly transient type adverse events of somnolence, epigastric pain/discomfort and loose stools were reported as most common (>5%); and giddiness, drowsiness, hallucinogenic, vertigo, nasal congestion (rhinitis), cough, cold, decreased appetite, nausea, constipation, dry mouth, hyperactivity, nocturnal cramps, blurring of vision, hyperacidity, skin rash and weight gain were reported as less common adverse events. Pre-clinical chronic toxicity studies conducted up to 8 months also found root extracts to be safe. No mutagenicity or genotoxicity was reported for the root; only mild CNS depression and increase in thyroxine (T4) levels were reported with rootby some studies. Further, there was no in vitro and in vivo inhibition seen for CYP3A4 and CYP2D6, the two major hepatic drug metabolizing enzymes. CONCLUSION: Root of the Ayurvedic drug W. somnifera (Aswagandha) appears a promising safe and effective traditional medicine for management of schizophrenia, chronic stress, insomnia, anxiety, memory/cognitive enhancement, obsessive-compulsive disorder, rheumatoid arthritis, type-2 diabetes and male infertility, and bears fertility promotion activity in females adaptogenic, growth promoter activity in children and as adjuvant for reduction of fatigue and improvement in quality of life among cancer patients undergoing chemotherapy. Properly designed, randomized-controlled, large-size, prospective trials with standardized preparations are needed to ascertain efficacy of Aswagandha root in previously studied and other new indications. | |
31967284 | Ultrasound Versus Contrast-Enhanced Magnetic Resonance Imaging for Subclinical Synovitis a | 2020 | OBJECTIVES: Radiographic manifestations of synovitis (e.g., erosions) can be observed only in the late stage of rheumatoid arthritis. Ultrasound is a noninvasive, cheap, and widely available technique that enables the evaluation of inflammatory changes in the peripheral joint. In the same way, dynamic contrast-enhanced magnetic resonance imaging (MRI) enables qualitative and quantitative measurements. The objectives of the study were to compare the sensitivity and accuracy of ultrasound in detecting subclinical synovitis and tenosynovitis with those of contrast-enhanced MRI. METHODS: The ultrasonography and contrast-enhanced MRI findings of the wrist, metacarpophalangeal, and proximal interphalangeal joints (n=450) of 75 patients with a history of joint pain and morning stiffness between 6 weeks and 2 years were reviewed. The benefits score was evaluated for each modality. RESULTS: The ultrasonic findings showed inflammation in 346 (77%) joints, while contrast-enhanced MRI found signs of early rheumatoid arthritis in 372 (83%) joints. The sensitivities of ultrasound and contrast-enhanced MRI were 0.795 and 0.855, respectively, and the accuracies were 0.769 and 0.823, respectively. Contrast-enhanced MRI had a likelihood of 0-0.83 and ultrasound had a likelihood of 0-0.77 for detecting synovitis and tenosynovitis at one time. The two imaging modalities were equally competitive for detecting synovitis and tenosynovitis (p=0.055). CONCLUSION: Ultrasound could be as sensitive and specific as contrast-enhanced MRI for the diagnosis of subclinical synovitis and tenosynovitis. |