Autoantibodies Flashcards
Adrenal failure -Autoimmune
Adrenal cortex
Sensitivity 60-90%
Coeliac disease
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Gliadin
Endomysium (IgA)
Sensitivity 70-90%
Specificity High
TTG (IgA) anti-transglutaminase antibodies
Sensitivity 70-90%
Specificity High
Dressler’s syndrome
Cardiac muscle
Goodpasture’s syndrome
Glomerular BM
Sensitivity High
Specificity High
Grave’s disease (pregnant)
TSH receptor
Haemolytic anaemia-Autoimmune
Rhesus antigen
Hepatitis-Autoimmune
Smooth muscle
Sensitivity 70%
Specificity Low
LKM (liver kidney microsomal antibodies)
Sensitivity Low
Specificity High
Insulin dependent diabetes mellitus
Islet cells (early)
Sensitivity 90%
Specificity High
GAD (glutamic acid decarboxylase)
Sensitivity Varies
Specificity High
Microscopic polyangiitis (MPA)
pANCA
Sensitivity 50%
Specificity Low
Myasthenia gravis
Acetylcholine receptor
Sensitivity 80-90%
Specificity High
MUSK
Ovarian failure-Autoimmune
Ovary
Parathyroid failure-Autoimmune
Parathyroid
Sensitivity 10%
Pemphigoid
Skin BM
Sensitivity 90%
Pemphigus
Desmosomes
Sensitivity 70%
Desmoglein 3
Peripheral neuropathy
Ganglioside (GM1)
Pernicious anaemia
Parietal cell
Sensitivity 90%
Specificity Low
Intrinsic factor
Sensitivity 66%
Specificity High