Abstract:
PURPOSE: A mixture of a Prunella vulgaris extract and an Artemisia argyi herb extract is provided to suppress PTP1B(protein tyrosine phosphatase B1), and to prevent or treat diabetes. CONSTITUTION: A composition for suppressing PTP1B contains a Prunella vulgaris extract and/or an Artemisia argyi herb extract in a ratio of 1:1. A drug composition contains the composition for suppressing PTP1B as an active ingredient. A health food composition contains the composition for suppressing PTP1B as an active ingredient. A method for preparing the composition for suppressing PTP1B comprises: a step of extracting Prunella vulgaris and Artemisia argyi herb with water and filtering; a step of concentrating the liquid; and a step of drying the concentrate. [Reference numerals] (AA,EE) Control group; (BB,GG) Artemisia argyi herb; (CC,FF) Prunella vulgaris; (DD,HH) Mixture of Prunella vulgaris and Artemisia argyi herb