产品描述

Category Name：Autoimmune Disorders

Method： ELISA

Principle： ELISA

Controls Standards： Positive, Negative and Calibrator

Sensitivity： Not available

Sample： 100 µl

Runtime： 50 Minutes

Wavelength： 450 nm

Safety： Please refer to MSDS

Shelflife： 18 Months

INTENDED USE

The Calbiotech ANA IgG ELISA Kit is intended for the detection of ANA in human serum.
SUMMARY AND EXPLANATION
Antinuclear antibodies (ANA) are frequently present in patients with systemic lupus erythematosus (SLE) and, less commonly, in other autoimmune diseases Rheumatoid arthritis, Collagen vascular diseases, chronic liver diseases and systemic sclerosis (scleroderma). ANA bind to several nuclear antigens including DsDNA, SSDNA, RNP, Sm, SSA and SSB. ANA frequency increases with age in apparently healthy people, especially women after the age of 45 years. ANA ELISA is widely used as a screening procedure for different autoimmune diseases.
PRINCIPLE OF THE TEST
Diluted patient serum is added to wells coated with purified nuclear antigens. ANA IgG specific antibody, if present, binds to the antigen. All unbound materials are washed away and the enzyme conjugate is added to bind to the antibody-antigen complex, if present. Excess enzyme conjugate is washed off and substrate is added. The plate is incubated to allow the hydrolysis of the substrate by the enzyme. The intensity of the color generated is proportional to the amount of IgG specific antibody in the sample.