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Since the first description of cryoglobulinemia in association with the clinical triad of skin purpura, joint pain, and weakness by Meltzer et al. in 1966, [4] [5] the percentage of cryoglobulinemic diseases described as essential cryoglobulinemia or idiopathic cryoglobulinemia (that is, cryoglobulinemic disease that is unassociated with an underlying disorder) has fallen.
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 ...
Cryoglobulinemic vasculitis is a form of inflammation affecting the blood vessels caused by the deposition of abnormal proteins called cryoglobulins.These immunoglobulin proteins are soluble at normal body temperatures, but become insoluble below 37 °C (98.6 °F) and subsequently may aggregate within smaller blood vessels.
Secondary cold agglutinin syndrome occurs when autoantibodies bind to red blood cells, rendering them subject to attack by the complement system. [17] It is a result of an underlying condition potentially associated with either monoclonal cold-reacting autoantibodies or polyclonal cold-reacting autoantibodies [16] predominantly caused by infection or lymphoproliferative disorders. [16]
Processing of tumor antigens recognized by CD8+ T cells. Normal proteins in the body are not antigenic because of self-tolerance, a process in which self-reacting cytotoxic T lymphocytes (CTLs) and autoantibody-producing B lymphocytes are culled "centrally" in primary lymphatic tissue (BM) and "peripherally" in secondary lymphatic tissue (mostly thymus for T-cells and spleen/lymph nodes for B ...
These B-cells are monoclonal, which means they are produced by a single ancestral B-cell. They share some of the same cell marker proteins, chromosome abnormalities, and gene mutations that are found in CLL. [37] [38] CLL-type MBL can be separated into two groups: Low-count MBL has monoclonal B-cell blood counts of <0.5x10 9 cells/liter (i.e. 0 ...
Serum protein electrophoresis (SPEP or SPE) is a laboratory test that examines specific proteins in the blood called globulins. [1] The most common indications for a serum protein electrophoresis test are to diagnose or monitor multiple myeloma , a monoclonal gammopathy of uncertain significance (MGUS), or further investigate a discrepancy ...
Cellular immunity protects the body through: T-cell mediated immunity or T-cell immunity: activating antigen-specific cytotoxic T cells that are able to induce apoptosis in body cells displaying epitopes of foreign antigen on their surface, such as virus-infected cells, cells with intracellular bacteria, and cancer cells displaying tumor antigens;