Auto-Immune Diseases Flashcards
Autoimmune Hemolytic Anemia(AIHA) auto-antibody
anti-RBC antibodies
Autoimmune Hemolytic Anemia(AIHA) clinical signs
RBC hemolysis
Autoimmune Hemolytic Anemia(AIHA) clinical test
Positive Direct Coombs Test
Pemphigus Vulgaris auto-antibody
anti-desmoglein (desmosomes)
Pemphigus Vulgaris pathogenesis
IgG mediated disruption of cellular adhesion on skin and mucosa
Pemphigus Vulgaris clinical presentation
blisters all over body fishnet pattern in Immunofluorescence
Goodpasture’s Syndrome auto-antibody
anti-basement membrane in glomerulus and cross-reactivity with lung alveoli
Goodpasture’s Syndrome pathogenesis
IgG mediated complement activation and Fc receptor mediated inflammation
Goodpasture’s Syndrome clinical presentation
glomerulonephritis, lung hemorrhage
Goodpasture’s Syndrome treatment
Removing the anti-GBM antibody by plasmapheresis immunosuppressant drugs
Acute Rheumatic Fever auto-antibody
Strep A antibody cross-reacts with myocardial antigen
Acute Rheumatic Fever pathogenesis
macrophage activation and inflammation
Acute Rheumatic Fever clinical presentation
myocarditis and arthritis
Pernicious Anemia auto-antibody
anti-Intrinsic Factor (Parietal Cells)
Pernicious Anemia Pathogenesis
Neutralization of Intrinsic Factor Decreased Vit B12 absorption
Pernicious Anemia clinical presentation
abnormal erythropoiesis and anemia
Myasthenia Gravis auto-antibody
anti-Acetylcholine Receptor
Myasthenia Gravis Pathogenesis
antibody inhibits ACh binding down-modulates receptors
Myasthenia Gravis clinical presentation
muscle weakness PTOSIS
Grave’s Disease auto-antibody auto-antibody
anti-TSH Receptor
Grave’s Disease Pathogenesis
antibody stimulates TSH secretion
Grave’s Disease clinical presentation
enlarged thyroid/goiter bulging eyes
Serum Sickness hypersensitivity type and pathogenesis (timing after exposure and mechanism)
Type III antibodies to foreign proteins are produced 5-10 days after exposure Immune complexes deposit in membranes complement activation leads to damage
Complement serum levels in Serum Sickness?
decrease due to activation