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Serum IgG, IgM, and ALT following hepatovirus A infection. Although HAV is excreted in the feces towards the end of the incubation period, specific diagnosis is made by the detection of HAV-specific IgM antibodies in the blood. [45] IgM antibody is only present in the blood following an acute hepatitis A infection. It is detectable from 1–2 ...
Symptoms of AIHA may be due to the underlying anemia; including shortness of breath or dyspnea, fatigue, headache, muscle weakness and pallor. [10] In cold agglutinin disease (cold antibody type), agglutination and impaired passage of red blood cells through capillaries in the extremities causes acrocyanosis and Raynaud phenomenon with a rare complication of gangrene [4]
DPT vaccination: Diphtheria-pertussis-tetanus (DPT) vaccination has been implicated in the development of autoimmune hemolytic anemia caused by IgM autoantibody with a high thermal range. A total of 6 cases have been reported; 2 followed the initial vaccination and 4 followed the second or third vaccinations.
The Internal Autoimmune Hepatitis Group developed a standardized scoring system for clinical diagnosis in population studies but lacks value in individualized cases. [17] A simplified scoring system for clinical use incorporates titers of autoantibodies, total IgG levels, liver histology, and the exclusion of viral hepatitis for diagnostic scoring.
The most common antibody isotype involved in warm antibody AIHA is IgG, though sometimes IgA is found. The IgG antibodies attach to a red blood cell, leaving their F C portion exposed with maximal reactivity at 37 °C (versus cold antibody induced hemolytic anemia whose antibodies only bind red blood cells at low body temperatures, typically 28–31 °C).
Cold agglutinins are antibodies, typically immunoglobulin M (), that are acquainted with and then binding the antigens on red blood cells, typically antigens "I" or "i" on the RBC surface, [1] in the environment in which the temperatures are lower than normal core body temperature and, thus, ends up leading to agglutinations of the red blood cells and hemolysis reaction occurring outside the ...
Patients with this lymphoma commonly have an IgM gammaopathy, i.e. high blood levels of an IgM monoclonal protein. [6] Hairy cell leukemia: The monoclonal B-cells in this usually indolent CLL/SLL-like leukemia have a distinctive morphology and are CD5−, CD10−, CD19+, CD20+ (bright), CD23−, CD103+, CD200+, and complete Ig+. [9]
Protein electrophoresis generally detects one of the following patterns of monoclonal myeloma protein spikes representing: a) intact IgG, IgA, IgE, IgE, or IgM; b) intact IgG, IgA, IgE, IgD, or IgM plus high concentrations of a free (i.e. not bound to a heavy chain) κ or λ light chain; c) a free κ chain in great excess of a λ chain or a ...