Active clinical trials for "Glomerulonephritis, IGA"

IgA nephropathy (IgAN) is the most prevalent primary glomerular disease worldwide and an important cause of end stage renal disease. IgAN has an incidence of 8-25 new cases/year/per million age-related population in adults and 3-5/new cases/year/per million age-related population in children and progresses to need of renal replacement treatment in 5-15% at 10 years and in about 20% at 20 years. The variability of the clinical course anticipates different treatment options. There is an absolute need of validated biomarkers to predict risk of progression and indication for treatment at early stages, when lesions can be reversible. This study aimed to evaluate IgAN progression and its histological and clinical correlates.

Primitive kidney disease IgA, represented by Berger's disease and rheumatoid purpura nephropathy, are the first cause of kidney failure from chronic glomerulonephritis: changes in 20 years to end-stage renal failure is described in 10 to 30 % of cases in Berger's disease and in 15 to 20% of cases in nephropathy HSP. These two pathological entities share biological and histological characteristics, as well as common pathophysiological mechanisms, particularly the production of abnormally glycosylated IgA1 promoting their proliferation in the mesangium. Tonsils part of Iga abnormal production sites that would be associated with an infectious stimulus, tonsillectomy has been studied as a possible treatment in primitive IgA nephropathy. The benefit of tonsillectomy is controversial: many Japanese studies demonstrate its effectiveness in terms of reduction of proteinuria, improved renal function in the long term regression of histological lesions and reduced risk of relapse following clinical remission whereas European studies do not suggest its effectiveness in treating IgA nephropathy. In this context, the aim of our study is to describe the scope of practice of tonsillectomy in the treatment of primary renal disease in IgA child in the inter East region and describe the short renal become Strasbourg end of the cohort that received this treatment.

IgA plays a major role in mucosal and systemic immunity but retains mysterious and ambivalent aspects. They can thus, depending on the situation, prove to be capable of triggering either a protective inflammatory response or, on the contrary, anti-inflammatory and inducing tolerance. Similarly, and for reasons that remain very poorly understood, they can be involved in pathologies where the immune system is itself an aggressor of the body and responsible for immunopathological lesions. The investigator formulates the hypothesis that an inappropriate response of the mucosal immune system to one or more antigens leads to a synthesis of IgA of bad affinity favoring a deposit at the level of the mesangium. It seems important to verify this point by analyzing the IgA repertory of patients with N-IgA and comparing it to that of a control population.

This prospective study aims to investigate the role of IR-Seq in the diagnosis and disease monitoring in patients with IgA nephropathy.