18 results
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Autoantibodies and their Disease ... connective tissue disease ... (TTG) - Celiac disease ... #Associations #diseases ... antibodies
Myositis Specific Antibodies (MSAs)

Dermatomyositis: MDA5, TIF1y, NXP2, Mi-2, SAE
Anti-Synthetase Syndrome: Jo-1, PL7, PL12, EJ, OJ
Immune Mediated
Myositis Specific ... Antibodies (MSAs ... , TIF1y, NXP2, Mi ... clinical #diagnosis #rheumatology ... #table
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
ANA ≠ Autoimmune Disease ... but often not specific ... connective tissue disease ... • Rheumatic Diseases ... ANA #patterns #rheumatology
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Tests for Celiac Disease ... patients with celiac disease ... Sensitivity for celiac disease ... value for celiac disease ... expensive #Celiac #Disease
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... Association with disease ... with auto-immune diseases ... erythematosus #diagnosis #rheumatology ... #table #ANA
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... and relapse No specific ... autoantibodies (antinuclear antibodies ... IgG4 #Related #Disease ... workup #treatment #rheumatology
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Early liver disease ... Specific inhibitors ... antiphospholipid antibodies ... antiphospholipid antibodies ... #differential #hematology
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
antigen - Allergen-specific ... lgE antibodies ... When the specific ... during hemolytic disease ... Diagnosis #Reactions #Table
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
multisystemic disease ... associated with other diseases ... demyelinating disease ... peripheral Thyroid Disease ... Tracheobronchial disease
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
pain • Kawasaki Disease ... (Granulomatous disease ... well as inner ear disease ... atherosclerotic disease ... most important diseases