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Serum protein electrophoresis showing a paraprotein (spike/peak in the gamma zone) in a patient with multiple myeloma.. A myeloma protein is an abnormal antibody (immunoglobulin) or (more often) a fragment thereof, such as an immunoglobulin light chain, that is produced in excess by an abnormal monoclonal proliferation of plasma cells, typically in multiple myeloma or Monoclonal gammopathy of ...
The globulin level may be normal in established disease. A doctor may request protein electrophoresis of the blood and urine, which might show the presence of a paraprotein (monoclonal protein, or M protein) band, with or without reduction of the other
Smouldering myeloma is a disease classified as intermediate in a spectrum of step-wise progressive diseases termed plasma cell dyscrasias.In this spectrum of diseases, a clone of plasma cells secreting monoclonal paraprotein (also termed myeloma protein or M protein) causes the relatively benign disease of monoclonal gammopathy of undetermined significance.
In a more recent study, MGUS patients that had the presence of none, 1, 2, or 3 of the three following risk factors, serum M protein levels >15 gram/liter, a non-IgG isotype, and abnormal free light chain ratios, had 5, 32, 37, and 58% chances, respectively, of progressing to multiple myeloma within 20 years.
In the majority of cases (63.5%), the paraprotein level was <1 g/dL, while only a very small group had levels over 2 g/dL. [15] A study of monoclonal protein levels conducted in Ghana showed a prevalence of MGUS of approximately 5.9% in African men over the age of 50. [16]
Targets: M-protein levels in blood, patient-specific assays for immunoglobulin and T cell receptor genes (high levels of somatic hypermutation often prevent this assay from reliably working). Uses: M-protein level in the blood is standard of care and is used for almost all patients with multiple myeloma. Patient-specific assays are still ...
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Hyperproteinemia is the state of having overly high levels of protein in the blood. This can occur due to monoclonal gammopathies such as multiple myeloma and after intravenous immunoglobulin has been given. [1] It can result in a falsely low appearing sodium level (hyponatremia). [1]