[Modern approaches to the detection of monoclonal gammopathy of undetermined significance (MGUS) in patients with kidney diseases].

Unlabelled: Monoclonal gammopathy (MG) is not only the state preceding of hematological neoplasms, but also associated with non - hematological diseases, in particular kidney damage.

Aim: To assess the diagnostic value of "Freelite" methods in addition to electrophoresis (EF) and immunofixation (IF) of serum and urine proteins for detecting MG in patients with kidney diseases.

Materials And Methods: 87 patients with kidney damage, in which MG was established using the method of electrophoresis of serum proteins (EF), immunofixation (IF) and the method of free light chains determination - FLC "Freelite" were selected.

HCV-associated mixed cryoglobulinemia and b-cell non-Hodgkin's lymphoma - pathogenetically related problems.

Hepatitis C virus (HCV) is a global population problem due to its high prevalence, usually late diagnosis, the difficulties of treatment. In the prognosis of patients with HCV not only hepatic, but increasingly frequent of extrahepatic HCV manifestations, such as mixed cryoglobulinemia (CG), are important. Mixed CG is currently considered as a B-cell benign lymphoproliferative disorders.

[Oligosecretory monoclonal gammopathy with renal involvement].

The article deals with the so-called monoclonal gammopathy of undetermined significance (MGUS), which is being actively explored in the world and has been recently investigated in Russia. It indicates the principles of identifying the phenotypes of MGUS and criteria for assessing the risk of its progression to cancer. There is an update on the possible involvement of monoclonal proteins in the pathogenesis of certain non-neoplastic kidney diseases, renal injuries in particular.

[Kidney injury associated with monoclonal gammopathies: Perspectives on diagnosis and treatment].

It is currently well justified that monoclonal gammopathies are the most important predictor for kidney diseases, including glomerulonephritis. To determine a correlation of nephropathy with oligosecretory gammopathy is of fundamental importance, as the treatment of these patients necessitates the use of special chemotherapy regimens to eliminate a pathological clone of lymphocytes or plasmocytes. If this clone is not eliminated, injury of the organ may recur to develop its failure.