Rat FSTL1 (Follistatin Like Protein 1) ELISA Kit

Follistatin-like protein 1 (FSTL1) is a secreted glycoprotein with documented roles in immune regulation, cell proliferation, and cardiovascular biology, and this quantitative immunoassay from Assay Genie enables researchers to measure FSTL1 concentrations in rat specimens. The kit is supplied as a complete research-use-only package containing a pre-coated plate, detection antibody, recombinant standards, and assay buffers sufficient for the full plate run. FSTL1, also referenced in the literature as FRP or TSC-36, has attracted attention as a candidate biomarker in pulmonary hypertension, heart failure, inflammatory arthritis, and tumor microenvironment studies. Samples should be handled using standard laboratory practice, with aliquots kept frozen until use to preserve analyte integrity. Each kit is intended for a single plate experiment, and reconstituted reagents typically remain stable for short-term refrigerated storage when labeled protocols are followed. Researchers studying rat models of cardiovascular disease, lung injury, sepsis, or metabolic dysfunction will find this assay useful for screening circulating FSTL1 levels in longitudinal cohorts. The protocol involves adding diluted samples and standards to the plate, incubating, washing, adding detection reagent, developing, and reading absorbance on a plate reader. Results are interpreted against the supplied standard curve to calculate absolute FSTL1 concentrations in each specimen.