Search for: rheumatoid arthritis    methotrexate    autoimmune disease    biomarker    gene expression    GWAS    HLA genes    non-HLA genes   

ID PMID Title PublicationDate abstract
27648105 Genus Tinospora: Ethnopharmacology, Phytochemistry, and Pharmacology. 2016 The genus Tinospora includes 34 species, in which several herbs were used as traditional medicines by indigenous groups throughout the tropical and subtropical parts of Asia, Africa, and Australia. The extensive literature survey revealed Tinospora species to be a group of important medicinal plants used for the ethnomedical treatment of colds, headaches, pharyngitis, fever, diarrhea, oral ulcer, diabetes, digestive disorder, and rheumatoid arthritis. Indian ethnopharmacological data points to the therapeutic potential of the T. cordifolia for the treatment of diabetic conditions. While Tinospora species are confusing in individual ingredients and their mechanisms of action, the ethnopharmacological history of those plants indicated that they exhibit antidiabetic, antioxidation, antitumor, anti-inflammation, antimicrobial, antiosteoporosis, and immunostimulation activities. While the clinical applications in modern medicine are lacking convincing evidence and support, this review is aimed at summarizing the current knowledge of the traditional uses, phytochemistry, biological activities, and toxicities of the genus Tinospora to reveal its therapeutic potentials and gaps, offering opportunities for future researches.
27148828 Methotrexate in Crohn's disease: a new face for an old drug? 2016 Oct Methotrexate is commonly used in rheumatoid arthritis but randomised controlled trials demonstrated its efficacy also in Crohn's disease. Methotrexate, although marginally used in clinical practice, is considered an appropriate immunomodulator particularly in patients refractory or intolerant to thiopurines. Areas covered: A literature search using 'methotrexate', 'Crohn's disease' and 'Inflammatory Bowel Disease' as key words, identified randomised controlled trials, meta-analyses and observational studies. The aim of this review is to summarise and critically discuss the available evidence concerning the efficacy and safety of methotrexate in the treatment of Crohn's disease. Expert commentary: Methotrexate is effective in inducing and maintaining remission in steroid-dependent CD at a dose of 25 mg/week and 15 mg/week, respectively. Data from observational studies suggest that methotrexate may be as efficacious as thiopurines with a similar safety profile. In specific clinical settings, (patients with a history of malignancy or young Epstein-Barr Virus-seronegative patients), methotrexate compete favourably with thiopurines.
27051943 [Oral microbiota: a promising predictor of human oral and systemic diseases]. 2015 Dec A human oral microbiota is the ecological community of commensal, symbiotic, and pathogenic microorganisms found in human oral cavity. Oral microbiota exists mostly in the form of a biofilm and maintains a dynamic ecological equilibrium with the host body. However, the disturbance of this ecological balance inevitably causes oral infectious diseases, such as dental caries, apical periodontitis, periodontal diseases, pericoronitis, and craniofacial bone osteomyelitis. Oral microbiota is also correlated with many systemic diseases, including cancer, diabetes mellitus, rheumatoid arthritis, cardiovascular diseases, and preterm birth. Hence, oral microbiota has been considered as a potential biomarker of human diseases. The "Human Microbiome Project" and other metagenomic projects worldwide have advanced our knowledge of the human oral microbiota. The integration of these metadata has been the frontier of oral microbiology to improve clinical translation. By reviewing recent progress on studies involving oral microbiota-related oral and systemic diseases, we aimed to propose the essential role of oral microbiota in the prediction of the onset, progression, and prognosis of oral and systemic diseases. An oral microbiota-based prediction model helps develop a new paradigm of personalized medicine and benefits the human health in the post-metagenomics era.
26833697 The design and development of a finger joint simulator. 2016 May Artificial finger joints lack the long-term clinical success seen with hip and knee prostheses. In part, this can be explained by the challenges of rheumatoid arthritis, a progressive disease which attacks surrounding tissues as well as the joint itself. Therefore, the natural finger joints' biomechanics are adversely affected, and consequently, this imbalance due to subluxing forces further challenges any prosthesis. Many different designs of finger prosthesis have been offered over a period of greater than 50 years. Most of these designs have failed, and it is likely that many of these failures could have been identified had the prostheses been appropriately tested prior to implantation into patients. While finger joint simulators have been designed, arguably only those from a single centre have been able to reproduce clinical-type failures of the finger prostheses tested in them. This article describes the design and development of a finger simulator at Durham University, UK. It explains and justifies the engineering decisions made and thus the evolution of the finger simulator. In vitro results and their linkage to clinical-type failures are outlined to help to show the effectiveness of the simulator. Failures of finger implants in vivo continue to occur, and the need for appropriate in vitro testing of finger prostheses remains strong.
26598815 Probiotics as an Immune Modulator. 2015 Probiotics are nonpathogenic live microorganism that can provide a diverse health benefits on the host when consumed in adequate amounts. Probiotics are consumed in diverse ways including dairy product, food supplements and functional foods with specific health claims. Recently, many reports suggest that certain probiotic strains or multi strain mixture have potent immunomodulatory activity in diverse disorders including allergic asthma, atopic dermatitis and rheumatoid arthritis. However, underlying mechanism of action is still unclear and efficacy of probiotic administration is quite different depending on the type of strains and the amounts of doses. We and others have suggested that live probiotics or their metabolites could interact with diverse immune cells (antigen presenting cells and T cells) and confer them to have immunoregulatory functions. Through this interaction, probiotics could contribute to maintaining immune homeostasis by balancing pro-inflammatory and anti-inflammatory immune responses. However, the effect of probiotics in prevention or modulation of ongoing disease is quite diverse even within a same species. Therefore, identification of functional probiotics with specific immune regulatory property is a certainly important issue. Herein, we briefly review selection methods for immunomodulatory probiotic strains and the mechanism of action of probiotics in immune modulation.
26540131 Neuropathic pain in patients with haemophilia, that is the question. 2015 Chronic pain caused by recurrent joint bleedings affects a large number of patients with haemophilia (PwH). The basis of this pain, nociceptive or neuropathic, has not been investigated so far. In other pain-related chronic disorders such as osteoarthritis or rheumatoid arthritis, initial studies showed nociceptive but also neuropathic pain features. 137 PwH and 33 controls (C) completed the painDETECT-questionnaire (pDq), which identifies neuropathic components in a person´s pain profile. Based on the pDq results, a neuropathic pain component is classified as positive, negative or unclear. A positive neuropathic pain component was found in nine PwH, but not in C. In 20 PwH an unclear pDq result was observed. In comparison to C the allocation of pDq results is statistically significant (p≤0.001). Despite various pDq results in PwH and C a similar appraisal pain quality, but on a different level, was determined. Summarising the results, there is a potential risk to misunderstand underlying pain mechanisms in PwH. In chronic pain conditions based on haemophilic arthopathy, a differential diagnosis seems to be unalterable for comprehensive and individualised pain management in PwH.
26293235 Management of Cardiovascular Risk in Patients with Chronic Inflammatory Diseases: Current 2016 Feb An increased risk of cardiovascular disease (CVD) has been observed in a range of chronic inflammatory diseases (CID), including rheumatoid arthritis (RA), psoriasis, inflammatory bowel diseases (IBD), and systemic lupus erythematosus (SLE). The increased risk of CVDs and reduced life expectancy in these conditions has stimulated considerable research and started an ongoing discussion on the need for a multidisciplinary approach and dedicated guidelines on CVD prevention in these patients. In addition, the possibility of inhibiting inflammation as a means to preventing CVD in these patients has gained considerable interest in recent years. We briefly summarize the current level of evidence of the association between CIDs and CVD and cardiovascular risk management recommendations. Perspectives of ongoing and planned trials are discussed in consideration of potential ways to improve primary and secondary CVD prevention in patients with CID.
26075003 Natural Products for Antithrombosis. 2015 Thrombosis is considered to be closely related to several diseases such as atherosclerosis, ischemic heart disease and stroke, as well as rheumatoid arthritis, hyperuricemia, and various inflammatory conditions. More and more studies have been focused on understanding the mechanism of molecular and cellular basis of thrombus formation as well as preventing thrombosis for the treatment of thrombotic diseases. In reality, there is considerable interest in the role of natural products and their bioactive components in the prevention and treatment of thrombosis related disorders. This paper briefly describes the mechanisms of thrombus formation on three aspects, including coagulation system, platelet activation, and aggregation, and change of blood flow conditions. Furthermore, the natural products for antithrombosis by anticoagulation, antiplatelet aggregation, and fibrinolysis were summarized, respectively.
25912602 Inflammatory bowel disease and risk of coronary heart disease. 2015 Nov Emerging data have shown consistent evidence of an association between inflammation and development of atherosclerosis. Systemic autoimmune diseases are characterized by chronic inflammation and immune dysregulation, and diseases such as rheumatoid arthritis and lupus erythematosus are now commonly accepted to associate with development of cardiovascular disease, including coronary artery disease. However, the risk of cardiovascular disease in inflammatory bowel disease (IBD), a chronic inflammatory disease of the gut, is still unclear and the magnitude of a potentially increased risk is continuously debated. The aim of this review is to give an update on the existing literature on the association between inflammatory bowel disease and risk of cardiovascular disease, in particular coronary artery disease, and further to discuss traditional and non-traditional risk factors in patients with inflammatory bowel disease.
25854154 [Therapeutic strategies for systemic lupus erythematosus]. 2015 Apr Therapeutic strategy means the definition of a long-term target, which should be reached by a chosen management. As for rheumatoid arthritis, the treat to target initiative recommends remission as the target for systemic lupus erythematosus (SLE) but the command variables of remission are not yet defined. The basis of a therapeutic strategy is first the analysis of those factors that may influence the achievement of the objectives: SLE disease activity, the differentiation of damage, organ manifestations, comorbidities, genetics, sex, age of onset and considering the pathophysiological basis are some of these factors. The next step is the analysis of the available substances and concepts that allow the target to be reached. Finally, rules for management (e.g. guidelines) are needed that enrich the possibility to reach the target and improve the prognosis of patients suffering from SLE.
25559223 Quantification of Th1 and Th17 Cells with Intracellular Staining Following PMA/Ionomycin S 2015 Jan 5 Cytokine-producing cells are at the center of the adaptive immune responses, and quantifying these cells is an important aspect to build understanding of the immune response. In particular, Th1 and Th17 cells have been implicated in the pathogenesis of such diseases as inflammatory bowel disease, rheumatoid arthritis, and multiple sclerosis. Quantification of Th1 and Th17 cells can provide important information in research of these diseases and other Th1- and Th17-mediated immune disorders. In vitro stimulation of cells followed by surface and intracellular staining, presented here, has the advantage of detecting the cytokines directly instead of relying exclusively on surrogate surface markers which, although showing enrichment for the effector T cells, are not specific markers for the cytokine-producing cells.
29020715 Diagnosis and management of polymyalgia rheumatica. 2016 Dec Polymyalgia rheumatica (PMR) is a common inflammatory condition of unknown aetiology with a prevalence of 1 in 133 in the over 50s, and a female to male ratio of 2:1. Symptoms develop over a matter of weeks; typically bilateral shoulder or pelvic girdle pain and stiffness, that is worse in the mornings. Associated symptoms include low-grade fever, malaise, fatigue, low mood, poor appetite, and weight loss. There is no specific diagnostic test for PMR but the usual pattern is a commensurate rise in CRP and ESR. A small proportion of PMR patients will have normal inflammatory markers. PMR is associated with giant cell arteritis (GCA). Half of patients with GCA will have some PMR symptoms and up to one fifth of patients with PMR will have evidence of GCA. Other conditions that can mimic PMR include: rheumatic disease in the elderly e.g. rheumatoid arthritis; inflammatory muscle diseases; thyroid disease; malignancy; infection; bilateral shoulder capsulitis; osteoarthritis, Parkinsonism and depressive illness. At diagnosis and each follow-up visit it is imperative to consider the potential for associated GCA. The patient should be asked about headaches, jaw claudication and visual disturbance. If there is any suspicion of GCA, urgent discussion with the rheumatologist should take place that day.
27821830 [Left Ventricular Pseudoaneurysm after an Apical Approach Transcatheter Aortic Valve Impla 2016 Nov A 79-years-old woman was diagnosed with severe aortic stenosis and referred to our institution for the purpose of an operation. We decided to perform transfemoral transcatheter aortic valve implantation because of her high frailty due to her age and medication of long-term steroid for chronic rheumatoid arthritis. In the operation, left ventricular perforation occurred by the guide wire and cardiac tamponade was detected. We performed pericardial drainage and controlled bleeding through the 5th intercostal thoracotomy and trasncatheter aortic valve implantation was performed after that. Postoperative computed tomography (CT) demonstrated left ventricular pseudoaneurysm in the apex. We performed re-operation because of the enlargement of pseudoaneurysm. The operation was performed through median sternotomy and the pseudoaneurysm was repaired. The patient was discharged after postoperative CT demonstrated the left ventricular wall repaired.
27585081 Autoimmune swallowing disorders. 2016 Dec PURPOSE OF REVIEW: Dysphagia can be the presenting symptom of autoimmune disease. The otolaryngologist should be familiar with and consider these disorders when assessing the patient with swallowing difficulties. RECENT FINDINGS: The present review gives a brief overview of Sjogren's syndrome, granulomatosis with polyangiitis, pemphigus and pemphigoid, rheumatoid arthritis, systemic lupus erythematosus, scleroderma and inflammatory myopathies, and how they affect swallowing. Diagnosis of these diseases is generally based off of clinical presentation, serology, and/or biopsy. Corticosteroids in combination with other immune modulators and symptomatic therapy are the mainstays of treatment. Treatment should be coordinated with a rheumatologist. SUMMARY: The otolaryngologist should be able to recognize when a systemic disease may be the cause of a patient's dysphagia and guide appropriate evaluation. Furthermore, the otolaryngologist can help localize the specific nature of the swallowing problem and guide or provide treatment.
33445237 Amino-Acid-Incorporating Nonionic Surfactants for Stabilization of Protein Pharmaceuticals 2016 Jul 11 With the rapid development of protein-based pharmaceutical products over the past decade, one of the biggest challenges in product development is maintaining the structural stability of proteins during purification, processing, and storage. In this work, the design of a new class of surfactants, polyether-modified N-acyl amino acids, is presented. One surfactant from this series, containing a phenylalanine moiety, demonstrated remarkable stabilization against aggregation of several model protein drugs. Dynamic light scattering, size exclusion chromatography, and circular dichroism all show the rate of thermally accelerated protein aggregation slowed. IgG aggregation was reduced by 3-fold compared to polysorbate controls. Testing of Orencia, a prescription biologic drug for rheumatoid arthritis, demonstrated a 36% improvement in monomer retention upon heat-aging.
27364395 Sex-based differences in autoimmune diseases. 2016 Apr Autoimmune diseases are characterized by an exaggerated immune response leading to damage and dysfunction of specific or multiple organs and tissues. Most autoimmune diseases are more prevalent in women than in men. Symptom severity, disease course, response to therapy and overall survival may also differ between males and females with autoimmune diseases. Sex hormones have a crucial role in this sex bias, with estrogens being potent stimulators of autoimmunity and androgens playing a protective role. Accumulating evidence indicates that genetic, epigenetic and environmental factors may also contribute to sex-related differences in risk and clinical course of autoimmune diseases. In this review, we discuss possible mechanisms for sex specific differences in autoimmunity with a special focus on three paradigmatic diseases: systemic lupus erythematosus, rheumatoid arthritis, and multiple sclerosis.
27339212 Increased Serum KL-6 Levels Induced by Pulmonary Mycobacterium Avium Complex Infection in 2016 Jun KL-6 is a glycoprotein found predominantly on type II pneumocytes and alveolar macrophages, and often shows increased serum levels in patients with interstitial pneumonia. We report a case of mycobacterium avium complex (MAC) infection whose disease activity was correlated with KL-6 levels in serum. During treatment of rheumatoid arthritis (RA)-associated interstitial lung disease (ILD) with prednisolone, chest image findings improved in association with decreased KL-6 levels. Following tapering of prednisolone, chest image findings deteriorated again as levels of KL-6 increased, suggesting recurrence of RA-ILD. Bronchoscopic examination revealed active MAC infection. Treatment of MAC infection not only improved chest image findings but also decreased KL-6 levels in serum, suggesting that KL-6 was increased by active MAC infection by itself, not by recurrence of RA-ILD. To the best of our knowledge, this is the first documentation of KL-6 elevation in serum in association with active MAC infection.
27310096 Rheumatologic and extraintestinal manifestations of inflammatory bowel diseases. 2016 Dec Inflammatory bowel diseases (IBDs) often present as a complex inflammatory process wherein colon lesions (ulcerative colitis, UC) or widespread ulceration and fissure (Crohn's disease, CD) might be accompanied by ancillary extraintestinal manifestations (EIMs) that could involve almost every organ system, but also by autoimmune disorders ranging from psoriasis and rheumatoid arthritis to connective tissue diseases. Certain EIMs are more common related to the activity of the IBD (joint, skin, ocular and oral manifestations), other EIMs typically run a course independent of the IBD activity (hepatobiliary disorders) and some are non-specific disorders (osteoporosis and amyloidosis). This paper reviews the most common extraintestinal and rheumatologic manifestations of UC and CD. They may produce greater morbidity than the underlying intestinal disease and may even be the initial presenting symptoms of the IBD. Thus, early recognition of these manifestations should help guide therapy that will reduce overall morbidity in affected patients. Key Message A complete review on the most common extraintestinal and rheumatologic manifestations of ulcerative colitis and Crohn's disease.
27252862 Thyroid lipomatosis in a 36-year-old patient with rheumatoid arthritis and a kidney transp 2016 Thyroid lipomatosis is a rare disease, as a total of 20 cases have been described in the literature. It is characterized by diffuse infiltration of the stroma by mature adipose tissue and by progressive growth that produces different degrees of compressive symptoms. Our aim is to present the case of a 36-year-old woman who consulted because of dyspnea caused by a multinodular goiter. She underwent surgery with the presumptive diagnosis of a malignant neoplasia, but the pathological examination of the surgical specimen established the diagnosis of thyroid lipomatosis. LEARNING POINTS: Thyroid lipomatosis is a rare, benign disease characterized by diffuse infiltration of the stroma by mature adipose tissue.The pathophysiology of diffuse proliferation of adipose tissue in the thyroid gland is unclear.Thyroid lipomatosis is clinically manifested by a progressive enlargement of the thyroid that can involve the airway and/or upper gastrointestinal tract, producing dyspnea, dysphagia, and changes in the voice.Given the rapid growth of the lesion, the two main differential diagnoses are anaplastic carcinoma and thyroid lymphoma.Imaging studies may suggest a differential diagnosis, but a definitive diagnosis generally requires histopathological confirmation after a thyroidectomy.
27194989 Acute Retinal Necrosis Associated with Epstein-Barr Virus in a Patient Undergoing Immunosu 2016 Jan Acute retinal necrosis (ARN) is a rapidly progressive and severe retinitis resulting in a poor visual outcome. Infections caused by herpes viruses such as herpes simplex virus (HSV) types 1 and 2 or the varicella zoster virus (VZV) are known to be implicated in the development of ARN. In the present study, an 80-year-old female with ARN was examined. She had been affected with rheumatoid arthritis and had taken methotrexate for over 10 years. Her right eye showed clinical features of ARN, and her left eye showed mild retinitis. The genomic DNA in the aqueous humor and vitreous fluid from her right eye were analyzed by a comprehensive polymerase chain reaction (PCR) assay to screen infectious pathogens including viruses. The Epstein-Barr virus (EBV) was detected from both specimens, but neither HSV or VZV nor cytomegalovirus was detected. She underwent intraocular surgery following systemic corticosteroid and acyclovir applications. However, although the retinitis of her right eye was extinguished, the final visual outcome was blindness due to optic nerve atrophy. There are few reports indicating that EBV is associated with ARN development. The present findings suggest that EBV alone can be the causative agent of ARN.