Thyretain® utilizes a genetically engineered cell line that expresses a
human Thyroid Stimulating Hormone receptor (hTSHr) and a Luciferase reporter gene. The
luciferase enzyme is measured through a luciferase-luciferin chemiluminescent reaction when
the cell line is incubated with patient serum containing Thyroid Stimulating Immunoglobulins (TSI).
*Thyretain Turbo TSI Stimulating Reporter BioAssay not available for sale in the U.S.
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