Evaluation of Serum Follistatin-Like Protein 1 Levels in Behcet's Disease and Its Association With Disease Activity

Serum FSL1 level Test principle The kit uses a double-antibody sandwich enzyme-linked immunosorbent assay(ELISA) to assay the level ofHuman Follistatin Like Protein 1(FSTL1) in samples. Add Follistatin Like Protein 1(FSTL1)to monoclonal antibody.Enzyme well which is pre-coated with Human Follistatin Like Protein1(FSTL1)monoclonal antibody, incubation; then, add Follistatin Like Protein 1(FSTL1)antibodies labeled with biotin, and combined with Streptavidin-HRP to form immune complex; then carry out incubation and washing again to remove the uncombined enzyme. Then add Chromogen Solution A, B, the color of the liquid changes into the blue, And at the effect of acid, the color finally becomes yellow. The chroma of color and the concentration of the Human Substance Follistatin Like Protein 1(FSTL1) of sample were positively correlated.