Rheumatoid Arthritis Vasculitis Research Articles

Animal Models of Vasculitis.

The diagnosis of vasculitis in rheumatoid arthritis (RV) is associated with considerable mortality; therefore, understanding the basic mechanisms underlying the pathogenesis of vasculitis is very important. Animal models of vasculitis have contributed to elucidating such mechanisms. We here introduce a Candida albicans water-soluble glycoprotein (CAWS)-induced vasculitis model and the methodological approach to evaluate inflammatory vascular change.

18F]FDG PET/CT in rheumatoid arthritis.

[18F]fluorodeoxyglucose (FDG) PET/CT can be used to image the inflammation in rheumatoid arthritis. Specifically, the synovial metabolic activity can be evaluated visually and measured using standard uptake values. Fluorine-18-labeled Sodium fluoride (NaF) PET/CT can be used to determine synovial osteoblastic activity. Response assessment using FDG PET/CT is routine in many cancers and this is now an emerging technique for rheumatoid arthritis. Vasculitis in rheumatoid arthritis (RA) can be also studied with FDG PET/CT and aortic calcification with NaF PET/CT. These techniques could be useful in determining RA disease severity. FDG PET/CT is a useful technique to exclude underlying malignancy when RA does not follow the expected course. A number of novel tracers are being studied with regard to their applicability in rheumatoid arthritis and some of these could even be used in a theranostic manner in the future.

Rheumatoid Vasculitis Following Change to Naturopathic Remedies

A 66-year old femal with longstanding seropositive rheumatoid arthritis was admitted to the internal medicine service with bilateral foot pain and new painless raised fluid filled black lesions on her feet. Two weeks prior she underwent a right great toe amputation for "gangrene" by podiatric surgery. Five months prior, the patient discontinued all disease modifying therapies to pursue naturopathic remedies. The patient was diagnosed with rheumatoid arthritis vasculitis and despite immunosupressive therapies, the patient ultimately underwent bilateral transmetatarsal amputations for progression disease progression. This case reinforces the imporance for physicians to strongly discourage only using naturopathic remedies in rheumatoid arthritis and to consider vasculitis in any patient with rheumatoid arthritis presenting with new skin lesions as late detection can have severe implications.

Axonal Motor Neuropathy in Rheumatoid Vasculitis: A Case Report

Necrotizing vasculitis in rheumatoid arthritis (RA) can lead to different patterns of neuropathy, including entrapment neuropathies, mononeuritis multiplex and distal symmetric sensory or sensorimotor neuropathy.

Тактика местной терапии кожного васкулита при ревматоидном артрите

Тактика местной терапии кожного васкулита при ревматоидном артрите

Animal Models of Vasculitis.

The diagnosis of vasculitis in rheumatoid arthritis (RV) is associated with considerable mortality; therefore, understanding the basic mechanisms underlying the pathogenesis of vasculitis is very important. Animal models of vasculitis have contributed to elucidating such mechanisms. We here introduce a Candida albicans water-soluble (CAWS) glycoprotein-induced vasculitis model and the methodological approach to evaluate inflammatory vascular change.

Study of the association between nailfold capillaroscopic changes and serum level of interleukin-17 in rheumatoid: a clue for emerging vaculitis

The aim of this work was to study nailfold capillaroscopic (NC) abnormalities and serum interleukin-17 (IL-17) level among rheumatoid arthritis (RA) patients and to find whether IL-17 is causally involved in the changes in the capillary vascular bed, such as autoimmune prevasculitic changes. The study was conducted on a group of RA Egyptian patients (n=40) who were diagnosed as having RA based on ACR criteria. Those 40 patients were further divided into two groups. Group 1 included RA patients with clinical signs of skin vasculitis and NC changes (n=6). Group 2 included RA patients with no clinical signs of skin vasculitis and no NC changes (n=34). All patients were subjected to demographic data collection, clinical examination, disease activity score 28 calculation, laboratory measurement (including erythrocyte sedimentation rate, C-reactive protein, rheumatoid factor, antinuclear antibody, antineutrophil cytoplasmic antibody, anti-cyclic citrullinated peptide, and IL-17) andNCexamination. Inaddition, group 1 (n=6) was further subjected to electrophysiological evaluation using peripheral nerve conduction studies to determine the effect of vasculitis on the peripheral nerves. IL-17 level and NC changes showed a significant association in RA vasculitis patients. Elevated levels of serum IL-17 and characteristic NC changes raise their importance in the detection of preclinical rheumatoid vasculitis.

Study of predictive value of capillaroscopic pattern and serum level of interleukin-17 in rheumatoid vasculitis patients

Objectives The aim of this study was to investigate nailfold capillaroscopic (NC) abnormalities and serum interleukin (IL)-17) level among rheumatoid arthritis (RA) patients with or without vasculitis. Patients and methods The study was carried on a group of RA Egyptian patients (n=40) who were diagnosed with RA based on ACR criteria. These 40 patients were further divided into two groups. Group 1 included RA patients with clinical signs of skin vasculitis and NC changes (n=6). Group 2 included RA patients with no clinical signs of skin vasculitis and no NC changes (n=34). All patients were subjected to demographic data collection, clinical examination, Disease Activity Score (DAS) 28 calculation, laboratory measurement (including erythrocyte sedimentation rate, C-reactive protein, rheumatoid factor, antinuclear antibody, antineutrophil cytoplasmic antibody, anticyclic citrullinated peptide, and IL-17), and NC examination. In addition, group 1 (n=6) was further subjected to electrophysiological evaluation by peripheral nerve conduction studies. Results Significantly elevated levels of IL-17 and characteristic NC changes were seen in RA vasculitis patients. Conclusion Rheumatoid vasculitis is associated with significantly elevated levels of serum IL-17 and characteristic NC changes.

Systemic Vasculitis in Various Organs of 33 Rheumatoid Arthritis and 11 Progressive Systemic Sclerosis Patients – A Comparative Postmortem Study

Objective: The aim of this study was (1) to compare the prevalence and severity of Systemic Vasculitis (SV) in various organs of Rheumatoid Arthritis (RA) and of progressive Systemic Sclerosis (SSc) patients, (2) To determine the complications and lethal outcome caused by vasculitis in RA and SSc. Patients and Methods: Twelve organs (heart, lung, liver, spleen, kidneys, pancreas, gastrointestinal tract, adrenal glands, skeletal muscle, peripheral nerve, skin and brain) of 33 RA and of 11 SSc with SV were studied microscopically. RA and SSc were confirmed clinically according to the criteria of the American College of Rheumatology. The basic disease, the complications, and the lethal outcome caused by vasculitis were determined and analyzed retrospectively, reviewing the clinical and pathological reports, tissue samples, and the histological slides. The existence (prevalence) of vasculitis in various organs was determined based on the presence of vasculitis in blood vessels of different calibers. The severity of vasculitis in various organs was evaluated by semi-quantitative, visual estimation on a 0 to 3 plus scale (based on the number of involved vessels/light microscopic field x40). Results and Conclusions: SV was observed in all of 33 RA and 11 SSc patients with variable prevalence and severity. The average value of prevalence and severity/organ in SSc was appreciably higher than that of RA. In RA patients, not all investigated organs were involved with SV and the existence of blood vessels with vasculitis in each organ was different. In SSc patients SV was present in each of the investigated organs, but with different severity. In RA the heart, skeletal muscle, pancreas, lung, kidneys and gastrointestinal tract were most markedly involved, while in SSc the kidneys, spleen, lung, pancreas, heart and gastrointestinal tract were. The high prevalence of SV and the consecutive fibrosis in these organs identify the main targets of autoimmune processes in RA and SSc prior to the more visible skin involvement. The most markedly involved organs denote a favorable site for histological diagnosis of SV, for example skeletal muscle with peripheral nerve (sural nerve) or gastrointestinal tract in RA and the gastrointestinal tract in SSc. The course of the disease, more precisely mortality due to SV,

AB0630 Severity of Systemic Vasculitis in Rheumatoid Arthritis and Progressive Systemic Sclerosis – A Comparative Postmortem Study

BackgroundThe vascular system is the most important target of immunological processes, manifesting as vasculitis or characteristic structural changes of blood vessels. Vasculitis and/or structural changes of blood vessels are the...

FRI0475 Mortality of OF Systemic Vasculitis in Rheumatoid Arthritis and in Progressive Systemic Sclerosis – A Comparative Postmortem Study of 36 RA and 11 SSC Patients

BackgroundSystemic vasculitis (SV) with or without chronic structural changes of the blood vessels is the basic pathological process in rheumatoid arthritis (RA) and in progressive systemic sclerosis (SSc), followed by...

THU0437 Disease Modifying Effect of Tuberculosis on Coexistent Systemic Vasculitis in Rheumatoid Arthritis – A Retrospective Clinicopathologic Study of 234 Autopsy Patients

BackgroundCoexisting associated diseases modify the features of rheumatoid arthritis (RA) by presenting atypical clinical manifestations and vice versa (1). The atypical signs and symptoms may lead to incorrect diagnosis or...

AB0468 Relapsing and systemic nature of temporal arteritis

BackgroundTemporal arteritis (TA) with or without polymyalgia rheumatica (PMR) is a systemic disorder involving different size of arteries and even veins with a predilection for branches of temporal arteries. Some...

Overview of vasculitis and vasculopathy in rheumatoid arthritis—something to think about

The vasculature plays a crucial role in inflammation and atherosclerosis associated with the pathogenesis of rheumatoid arthritis. Vasculitis in rheumatoid arthritis is associated with longstanding disease, has an important impact on a patient's quality of life and influences patient life expectancy. Seropositivity, specific human leukocyte antigen variations, antibodies to cyclic citrullinated peptides, and cigarette smoking are among the genetic and environmental predictors of rheumatoid vasculitis. Atherosclerosis is an early and common finding in rheumatoid arthritis and it correlates with disease duration, activity, and severity. Apart from conventional risk factors such as cigarette smoking, physical inactivity, obesity, arterial hypertension, dyslipidemia and diabetes mellitus, rheumatoid arthritis-related risk factors including disease duration, severity and activity, rheumatoid factor and antibodies to cyclic citrullinated peptides status, functional impairment, C-reactive protein, radiographic changes, presence of the shared epitope, and treatment modalities are all implicated in the development of accelerated atherosclerosis. Atherosclerosis is also considered an inflammatory disease; thus, it may share common pathogenic mechanisms with rheumatic diseases such as rheumatoid arthritis. Advances in treatment of rheumatoid arthritis with disease-modifying biologic and nonbiologic agents will probably continue to reduce the incidence of vasculitis. Since the goal of treatment for rheumatoid arthritis is to decrease inflammatory burden, successful treatment may theoretically reduce the risk of accelerated atherosclerosis.

Jejunal vasculitis in patient with rheumatoid arthritis: case report and literature review

A 57-year-old man with rheumatoid arthritis presented severe abdominal pain symptomatic of panperitonitis. Computer tomography findings were consistent with vasculitis on the jejunum. Confirmatory angiography was conducted. Since abdominal vasculitis in rheumatoid arthritis is very rare, early diagnosis and treatment should be done according to clinical manifestation. In this case, high-dose steroid treatment was applied based on clinical manifestation, laboratory findings, and radiologic finding. After therapy, clinical manifestation and flare-up arthritis diminished.

INFLIXIMAB: HAVE ALL QUESTIONS BEEN ANSWERED FOR 10 YEARS?

The paper provides evidence for the clinical efficacy of infliximab, its effect on the extra-articular manifestations of rheumatoid arthritis-vasculitis, rheumatoid nodules, and cardiovascular pathology. It discusses reasons for the lower effect of therapy and the possibilities of its correction, by increasing the dose of the agent or reducing an infusion interval.

Vasculitis in rheumatoid arthritis

To examine the occurrence and pathophysiology of vasculitis in rheumatoid arthritis (RA), describe the epidemiology and clinical features, and provide a therapeutic perspective. With improved control of RA over the past two decades, the risk of severe outcomes such as vasculitis may be decreasing. Rheumatoid vasculitis continues to be associated with longstanding, erosive, seropositive disease, and it has recently been shown to be more frequent among patients with antibodies to cyclic citrullinated peptides. Apart from circulating immune complexes, expansion of cytotoxic CD28null T cells and circulating proinflammatory cytokines also play a role in the pathogenesis. The role of agents directed against the tumor necrosis factor (TNF) in the occurrence and management of rheumatoid vasculitis remains unclear, as rheumatoid vasculitis may be both associated with and treated with anti-TNF agents, once it has appeared. Vasculitis in RA is generally associated with longstanding disease, has an important impact on a patient's well being, and markedly influences patient life expectancy. Advances in therapies for RA will likely continue to reduce the incidence of vasculitis, and improved management of cardiovascular comorbidity in patients with RA will be of particular benefit to those who suffer from vasculitis and other extraarticular manifestations.

Critical Involvement of Cytokines and Chemokines in the Pathogenesis of Rheumatoid Vasculitis

Vasculitis in rheumatoid arthritis (rheumatoid vasculitis) has a heterogeneous clinical presentation that includes skin disorders, neuropathy, eye symptoms and systemic inflammation. The molecular mechanisms underlying rheumatoid vasculitis are not fully understood; however, the importance of a chronic imbalance of the cytokines and chemokines involved in orchestrating inflammatory responses is well established in patients with rheumatoid arthritis, and similar dysregulation of these mediators has been suggested to occur in patients with rheumatoid vasculitis. In the present review, we discuss the involvement of cytokines and chemokines in the pathogenesis of rheumatoid vasculitis and evaluate their utility as laboratory parameters of active vasculitic disease. Also the involvement of adhesion molecules is discussed.

Localized Striated Muscle Vasculitis in Rheumatoid Arthritis

Rheumatoid arthritis (RA) is one of the most prevalent connective tissue diseases and can be complicated by vasculitis with systemic manifestations. Rheumatoid vasculitis can range in severity from a widespread, life-threatening disease refractory to treatment to a more benign, localized disease responsive to treatment. We describe here a patient with RA who presented with bilateral calf muscle pain secondary to rheumatoid vasculitis. The patient had intractable calf muscle pain which did not respond to nonsteroidal anti-inflammatory drugs and muscle relaxants. He did not have any other manifestations of rheumatoid vasculitis such as skin ulcers, peripheral neuropathy, or gastrointestinal involvement. A thorough diagnostic work-up concluding with a muscle biopsy revealed a non-necrotizing small vessel vasculitis. The patient's symptoms responded very well to a course of steroids and he required no additional cytotoxic agents. This case illustrates that rheumatoid vasculitis can present as an isolated striated muscle vasculitis characterized by a relatively benign course and prompt resolution with the initiation of steroids. Clinicians need to be aware that such a phenomenon can exist to facilitate early recognition and appropriate treatment.

Pathology of renal disease and vasculitis in rheumatoid arthritis

Pathology of renal disease and vasculitis in rheumatoid arthritis