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IgG4-related disease is a rare and very recently identified pathology, whose frequency is certainly underestimated.
The clinical presentation varies among affected organs, and most often, patients have at least three organ damage.
These organs exhibit tissue infiltration mononuclear polymorphic cells with often severe fibrosis progression resulting in a loss of function.
The biomarker, though not specific, is a polyclonal elevated serum IgG4, and histological marker, currently held by several teams, is the presence within the inflammatory infiltrate, of a predominance of IgG4-expressing plasma-cells with a relative plasma-cells IgG4 + / IgG +> 50% on tissue immunostaining.
The investigators project provides a global assessment of T lymphocyte abnormalities and specifically the TFH (Follicular Helper) during this IgG4-related disease compared to so-called groups "control" subjects suffering from Sjogren syndrome or healthy subjects.
Allocation: Non-Randomized, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention
extra blood draw samples
Assistance Publique Hopitaux De Marseille
Published on BioPortfolio: 2016-09-13T18:08:21-0400
Immunoglobulin G4-related disease (IgG4-RD) is an uncommon inflammatory disorder that may affect multiple organ systems, including the biliary tree. IgG4-sclerosing cholangitis (IgG4-SC) c...
IgG4 Related Disease is a multi-systemic fibroenophilic disease that includes a basket of recently discovered medical conditions. The properties that bind them are: lesions similar to tum...
Infraorbital nerve enlargement (IONE) on magnetic resonance imaging is known to be a possible consequence of IgG4-related ophthalmic disease. However this imaging sign can also be found in...
The aim of this study is to establish a nation-wide cohort study of IgG4-related disease (IgG4-RD) in China. Methods: All the patients fulfilling diagnostic criteria of IgG4-RD (2011) wou...
IgG4-related disease (IgG4-RD) is an immune-mediated, fibro-inflammatory disease that leads to tissue damage, organ dysfunction and, if untreated, to organ failure. The disease can affect ...
Immunoglobulin G4 (IgG4)-related disease (IgG4-RD) is an immune-mediated fibroinflammatory disorder and is characterised by elevated serum IgG4 concentrations and dense lymphoplasmacytic infiltrate ri...
IgG4-related disease (IgG4-RD) is characterized by infiltration of IgG4-positive plasma cells in various organs and elevation of serum IgG4. IgG4-RD manifests various skin changes including psoriasis-...
IgG4-related disease (IgG4-RD) is a chronic fibro-inflammatory disorder which is characterized by elevated levels of serum IgG4 and infiltration of IgG4-bearing plasma cells in the involved organs. Pr...
Immunoglobulin G4-related disease (IgG4-RD) is a newly recognised immune-mediated disease of unknown origin. IgG4-related disease predominantly affects the pancreas (autoimmune pancreatitis type 1), b...
The antigenic trigger that drives the expansion of circulating plasmablasts and CD4 cytotoxic T cells (CD4 CTLs) in patients with IgG4-Related Disease (IgG4-RD) is presently unknown.
Testing erythrocytes to determine presence or absence of blood-group antigens, testing of serum to determine the presence or absence of antibodies to these antigens, and selecting biocompatible blood by crossmatching samples from the donor against samples from the recipient. Crossmatching is performed prior to transfusion.
The techniques used to draw blood from a vein for diagnostic purposes or for treatment of certain blood disorders such as erythrocytosis, hemochromatosis, polycythemia vera, and porphyria cutanea tarda.
The collecting of fetal blood samples via ultrasound-guided needle aspiration of the blood in the umbilical vein.
Techniques for using whole blood samples collected on filter paper for a variety of clinical laboratory tests.
The application of LEECHES to the body to draw blood for therapeutic purposes. Such medicinal leeching, an ancient medical practice, is still being used in microsurgery and the treatment of venous congestion or occlusion.
An antibody is a protein produced by the body's immune system when it detects harmful substances, called antigens. Examples of antigens include microorganisms (such as bacteria, fungi, parasites, and viruses) and chemicals. Antibodies may be produc...
Blood is a specialized bodily fluid that delivers necessary substances to the body's cells (in animals) – such as nutrients and oxygen – and transports waste products away from those same cells. In vertebrates, it is composed of blo...