Active clinical trials for "Immune System Diseases"

Type 1 diabetes results from the autoimmune destruction of the insulin-producing beta cells of the islets of Langerhans of the pancreas. Initially, diabetes is usually clinically silent with immune cells invading the pancreatic islets, a process termed insulitis, which eventually leads to loss of beta cells in the islets. If enough beta cells are destroyed, the body can not make enough insulin to maintain blood sugars in the normal range and clinical diabetes develops. The purpose of this study is to assess the ability of magnetic resonance imaging with ferumoxytol to detect changes in the pancreas associated with the insulitis of type 1 diabetes.

Introduction Cardiovascular diseases are the first cause of death in rheumatoid arthritis (RA). In 2010, EULAR Standing Committee for Clinical Affairs provides 10 recommendations for cardiovascular risk management in patients with rheumatoid arthritis, including a cardiovascular risk assessment annually. The goal of this study is to evaluate the application of EULAR recommendations in real life in patients with RA in the french population. Inclusion criteria: all patients over 18 years old with rheumatoid arthritis treated with at least one DMARDS and/or biologic therapy, affiliated to the RSI (regime social des independents which correspond to other branches of the universal healthcare insurance agency). Non inclusion criteria: patients declared as rheumatoid arthritis without DMARDS or biologic therapy or treated with steroids alone. The following analysis will be performed on the whole database of the RSI, without name identification. Evaluation criteria: at least once a years the prescription of at least one of the following items use in the evaluation of the cardiovascular risk factors: lipides dosage, glycemia, HbA1C, stress test, Carotid ultra-sonography, coronary or lower limbs arteriography, heart ultra-sonography, cardiology clinic, endocrinology clinic. This evaluation will be done on the whole national population of RSI for the year 2011 (01/01/2011 - 31/12/2011). On a subgroup of patients from the region "Provence Alpes Côte d'Azur", the investigators will analyze the year 2009, and compare to year 2011, to evaluate the impact of theses recommendations.

The purpose of this study is to determine the appropriate concentration of diagnostic reagent of house dust mite (Dp) to be used in diagnostic allergy skin prick test among Thai population with allergic rhinitis.

Graves' disease is characterized by thyrotoxicosis, goiter, ophthalmopathy and dermopathy. Pathogenesis involves autoimmune process. The investigators think temperatures of the area involved in the inflammation may change. Thus the investigators plan to take temperature pictures of Graves' patients using digital infrared thermal imaging system and observe the change.

The purpose of this study is to compare the incidence rates of infection, malignancy and death among patients with rheumatoid arthritis who are treated with abatacept and those who are treated with other anti-rheumatic medications for rheumatoid arthritis.

Hypothesis: the hyponatremia of multiple myeloma (m.m.)is true and not pseudohyponatremia by using the stewart approach to acid - base interpretation, would like to show that the positive charged m- proteins produced in m.m.result in true hyponatremia.

Registry to follow patients with sarcoidosis associated pulmonary hypertension

The purpose of this cross-sectional survey study is to describe the prevalence of asthma and Rhinitis symptoms among secondary school students in Saudi Arabia.

There is a correlation between the CD55, CD59, CD35 and CD46 expression on B lymphocytes of patients before and after treatment with rituximab and the level of depletion and repopulation time for these cells. The theoretical rationale of the study assumes that the correlation, if any, will be a negative correlation. However, the hypothesis of positive correlation (two-tailed test) will also be tested.

The purpose of the study is to create a prospective database of T-Lymphoblastic Lymphoma (T-LBL) cases in order to conduct an appropriate statistical study as well as to monitor diagnosis and minimal residual disease (MRD), to detect specific genetic profile useful to give advices on therapies, to assess if PET has a prognostic validity on T-Lymphoblastic Lymphoma (T-LBL).