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Terminal complement pathway deficiency is a genetic condition affecting the complement membrane attack complex (MAC). It involves deficiencies of C5, C6, C7, and C8. (While C9 is part of the MAC, and deficiencies have been identified, [1] it is not required for cell lysis. [2]) People with this condition are prone to meningococcal infection. [3]
Treatment for all forms of this condition primarily relies on a low-protein diet, and depending on what variant of the disorder the individual suffers from, various dietary supplements. All variants respond to the levo isomer of carnitine as the improper breakdown of the affected substances results in sufferers developing a carnitine deficiency.
Complement component 2 deficiency: Possibly symptomatic of autoimmune diseases, but not a disease. Congenital heart block: May be related to autoimmune activity in the mother. Contact dermatitis: A hypersensitivity. Cushing's syndrome: No consistent evidence of association with autoimmunity. Cutaneous leukocytoclastic angiitis
Humoral immune deficiency (including B cell deficiency or dysfunction), with signs or symptoms depending on the cause, but generally include signs of hypogammaglobulinemia (decrease of one or more types of antibodies) with presentations including repeated mild respiratory infections, and/or agammaglobulinemia (lack of all or most antibody production) which results in frequent severe infections ...
Hypogammaglobulinemia is an immune system disorder in which not enough gamma globulins are produced in the blood (thus hypo-+ gamma + globulin + -emia).This results in a lower antibody count, which impairs the immune system, increasing risk of infection.
Protein C is vitamin K-dependent. Patients with Protein C deficiency are at an increased risk of developing skin necrosis while on warfarin. Protein C has a short half life (8 hour) compared with other vitamin K-dependent factors and therefore is rapidly depleted with warfarin initiation, resulting in a transient hypercoagulable state.
CD55 deficiency, also called DAF deficiency or CHAPLE syndrome, is a rare genetic disorder of the immune system. CHAPLE stands for "CD55 deficiency with hyper-activation of complement, angiopathic thrombosis, and severe protein-losing enteropathy (PLE)." [1] The disorder usually manifests in childhood and can be life-threatening. This condition ...
T cell deficiency is a deficiency of T cells, caused by decreased function of individual T cells, it causes an immunodeficiency of cell-mediated immunity. [1] T cells normal function is to help with the human body's immunity, they are one of the two primary types of lymphocytes (the other being B cells ).