Active clinical trials for "Autoimmune Diseases"

reviewing the outcomes of patients with uveitis caused by autoimmune diseases treated at Assiut University Hospital at the Ophthalmology and Rheumatology and Rehabilitation Departments.

Rheumatoid Arthritis (RA): RA is a chronic inflammatory autoimmune disease that primarily affects the small joints, eventually leading to bone erosion and an inability to move (1). Several immune cells participate in the pathogenesis of RA. One of those cells is B cell.

Chronic inflammatory diseases (CID) - including inflammatory bowel diseases (Crohn's disease and ulcerative colitis), rheumatic conditions (rheumatoid arthritis, axial spondyloarthritis, psoriatic arthritis), inflammatory skin diseases (psoriasis) and multiple sclerosis are diseases of the immune system that have some shared genetic and environmental predisposing factors, but still little is known on the effects of lifestyle as a prognostic factor on disease risk. This observational study will contribute to preexisting research on lifestyle factors by identifying diet factors associated with risk of developing CID, using prospective register data. The study will use data from all of the 57,053 participants in the Danish cohort "Diet, Health and Cancer (DHC)" together with registry data. Blood samples, anthropometric measures and questionnaire data on diet and lifestyle were collected at the DHC study entry. The National Patient Registry (NPR) will be used to obtain to identify patients with CID during follow-up. Follow-up information on death and immigration will be collected in March 2018 from the Danish Civil Registration Register. The outcome CID is defined as at least one of the following CIDs: Crohn's disease, ulcerative colitis, psoriasis/psoriatic arthritis, rheumatoid arthritis/ankylosing arthritis, or multiple sclerosis, during the follow-up period from 1993 to March 2018. The primary hypothesis is that "the risk of CID will be significantly higher among those with a low fibre/high red and processed meat intake compared to those with a high fibre/low red and processed meat intake." Based on previous research on a shared etiology in CIDs a second hypothesis is that "the postulated causality between low fibre/high red and processed meat intake and risk of developing CID is applicable for each of the CID-diagnoses." The core study is an open register-based cohort study. The study does not need approval from the local Ethics committee or Institutional Review Board by Danish law. The study was approved by the Danish Data Protection Agency (2012-58-0018) Study findings will be disseminated through peer-reviewed journals, patient associations and presentations at international conferences.

Working hypothesis and aims: Biotin is conjugated covalently to several proteins and use as a co-factor. Conjugation of biotin to non-targeted, unspecific proteins (e.g. immunoglobulins) leads to the breakage of the immune tolerance and to the formation of anti-biotin antibodies. Anti-biotin antibodies will be found in correlation with the progression and the present of autoimmune disease. In this research the correlation between immune response against biotin and the formations of autoimmune disease, will be studied: A. Assessment of the possibility that biotin elicit immune response involved in the developmental stage of the autoimmune disease. B. Assessment of the possibility that anti-biotin antibodies indicate the developmental stage of the autoimmune disease and therefore can serve as an disease early stage marker. Methods: A. Patient recruitment. Gathering participant's medical record and blood samples. B. Records of clinical and biochemical measures. C. Serum of all patient will be tested for the correlation between biotin level, biotin bound to antibodies and anti-biotin antibodies to liver functions tests. D. Controlled test for repeatedly injected mice with biotinilated self-antibodies. Level of anti-biotin will be tested and their influence on the mouse. E. Determination of the correlation between biotinilated antibodies or anti-biotin antibodies to disease eruption or severance and autoimmune disease. Expected results :Serum biotin-protein levels and Anti biotin antibodies levels are increased in patients with active autoimmune liver diseases. Importance: The proof of connection between biotin-carrying immunoglobulins, anti biotin antibodies and autoimmune diseases will open new research direction of possible factors that cause to autoimmune disease. Probable implications to Medicine: Identification of correlations between reaction to biotine and autoimmune diseases will enable their usage as biomarkers for autoimmune diseases, severity of the disease and personalization of treatment.

The aim of the study is to assess the effectiveness of various post-transplant treatment management approaches on clinical and immune biological responses after Autologous Hematopoietic Stem Cell transplantation (AHSCT) for Systemic Sclerosis (SSc) as currently performed by the different treatment protocols used in routine clinical practice across Europe in various EBMT centres

The aim of this research is to understand how lipids such as cholesterol affect the disease process in people with MS.

Over the past few years, growing evidences revealed that clearance of apoptotic cells by phagocytosis can result in powerful anti-inflammatory and immunosuppressive effects. In vivo, apoptotic cells are cleared rapidly by neighboring cells, macrophages and related scavengers. Defective clearance of apoptotic cells has been linked closely to autoimmunity and persistent inflammatory disease. Several phagocytic receptors, bridging molecules produced by phagocytes and 'eat-me' signals on apoptotic cells are coordinately involved in mediating clearance of apoptotic cells. Complement receptors (CR3, CR4), collection, CD14, CD36 (Class B scavenger receptor), class A scavenger receptor, asialoprotein receptor, Mer receptor kinase were reported to recognize apoptotic cells. The best characterized system for clearance of apoptotic cells is the recognition of phosphatidylserine (PS) on apoptotic cells by phosphatidylserine receptor (PSR). Milk fat globule- epidermal growth factor 8 (MFG-E8) is an opsonin that bridges phagocytes (by interacting with α vβ3, αvβ5 integrins via RGD motif) and apoptotic cells (by binding PS through Factor V/VIII-C domain). Activated macrophages produce and secret MFG-E8. MFG-E8 is a critical component in PSR-mediated phagocytosis of apoptotic cells. The dominant negative mutant MFG-E8, D89E, that carried a mutated RGD motif inhibited phagocytosis of apoptotic cells in vitro. Injection of D89E into wild type mice induced autoantibodies and IgG deposition on glomeruli. Macrophages from MFG-E8 deficiency (MFG-E8-/-) mice were impaired in engulfment of apoptotic cells, which can be restored by adding recombinant MFG-E8. The female MFG-E8-/- mice spontaneously produced high titer of autoantibodies and developed lupus-like glomerulonephritis at the age of week 40. Defective clearance of apoptotic cells is closely related to development of autoimmunity. In the past 4 years, a growing number of molecules were recognized as receptors for the PS exposed on the apoptotic cells. These molecules were capable of mediating phagocytic clearance, rendering anti-inflammatory cytokines in the phagocytes, and modulating T cell responses. The specific aim of this proposal is to study genetic polymorphism in MFG-E8, PSR and other factors implicated in phagocytic clearance of apoptotic cells among Taiwanese. By comparing the polymorphism between patients with autoimmune disease (SLE or RA) and healthy control subjects, we will investigate if genetic variations among individuals of genes encoding proteins involved in clearance of apoptotic cells contribute to the pathogenesis of systemic autoimmune diseases SLE and RA.

Hydroxychloroquine(HCQ)play major role in management of many rheumatic diseases. Retinal toxicity from HCQ is serious side effect because even after the drug drug is discontinued, there is little if any visual recovery. For this reason, regular screening for retinal toxicity is recommended to detect early retinopathy and discontinue the therapy. Cytochrome P450 (CYP) enzymes play major roles in drug metabolism. Certain single-nucleotide polymorphisms(SNPs) in CYP genes may have a large impact on CYP enzyme activity.Polymorphisms in the cytochrome P450 gene might influence blood concentration some patients have a genetic predisposition to HCQ toxicity (e.g.,from abnormalities in the ABCA4 gene)Which is not studied previously among Egyptian population

Multiple sclerosis (MS) is the most common demyelinating disease of the central nervous system and the most common cause of non traumatic disability in young and middle-aged people. Neuromyelitis optica spectrum disease (nmosd) is an independent disease different from Ms. the pathogenesis and the mode of brain and spinal cord injury are different from MS, and the prognosis and optimal treatment are different. It is difficult to distinguish the two diseases in the early stage. Early diagnosis and treatment of the two diseases can greatly improve the quality of life of patients. Therefore, it is an urgent problem to clarify the difference between MS and nmosd injury patterns and to find sensitive imaging markers for early clinical intervention. With the continuous progress of computer aided diagnosis (CAD), it is more and more widely used in medicine, which is expected to help solve the above problems. The purpose of this study is to create a neuroimmune disease evaluation database based on image data. By combining brain and spinal cord imaging, and based on Zhang quantum space learning computer-aided technology, we can achieve accurate segmentation of MS and nmosd brain and spinal cord lesions, analyze the evolution characteristics of the disease at different time points, and screen the imaging indexes related to clinical scores combined with clinical and laboratory indexes Objective: to determine the different prognosis and its influencing factors at the clinical, imaging and molecular levels, and establish the model for predicting disease progression and prognosis, so as to provide the basis for early identification and assistance in guiding treatment and judging prognosis. Clinical information was collected: age, gender, course of disease, MMSE, EDSS disability score, nine hole test, 25 foot walking test. Assess the patient's information processing ability. Blood samples were collected. Imaging examination was performed. The patients were followed up regularly.

Sjögren's syndrome (SjS) is an autoimmune disease characterized primarily by exocrine gland dysfunction, specifically of the salivary and lacrimal glands, resulting in dry mouth and dry eyes symptoms. It can be systemic by affecting other organs including the gastrointestinal tract, skin, lungs, vasculature, kidneys, bladder and vagina. Involvement of the musculature can lead to fibromyalgia-like symptoms and chronic fatigue, while approximately 20% of patients develop various neuropathies, including sensory, peripheral, cranial and myelopathic neuropathies exhibited by cognitive impairments such as dementia, lack of concentration, memory loss and various psychiatric disorders. Like most autoimmune connective tissue diseases, SjS shows a sexual dimorphism with women affected 10-times more frequently than men, suggesting a role for sex hormones in disease susceptibility or progression. One common feature of SjS is it infiltration of mononuclear cells into the salivary and lacrimal glands, aggregating into clusters referred to as lymphocytic foci (LF). Critical to the studies proposed is the fact that a predominant cell population of LF is the pathogenic TH17 cell that produces IL-17 cytokine and autoreactive B cells reactive to M3R, Ro, and La autoantigens. The goal of this study is characterize the change in receptor gene repertoires of autoreactive B and T cells at different time points during the disease process and examine the correlation with various disease parameters.