The Effects of Sambiloto Leaf Extract (Andrographis peniculata) on Blood Sugar Regulation: an In Vivo Study

Abstract

Sambiloto (Andrographis peniculata) is one of the most common plants inIndonesia. Sambiloto contains quite varied secondary metabolites, where thisplant is rich in flavonoids, alkaloids, terpenes and glycosides. This study aimsto assess the effect of Sambiloto (Andrographis peniculata) leaf extract on bloodsugar levels and the expression of GLUT4 protein in muscle tissue whichindicates the potential of the test extract's ability to improve blood glucose intaketo cells so that it can maintain blood sugar regulation. The process of extractingsambiloto is carried out by maceration in which 500 grams of simplicia aremacerated with 96% ethanol for 72 hours. After 1 week of adaptation, the micewere randomly divided into the following six groups, each containing 5 animals:Normal control group, diabetes group (negative control), diabetes + metformingroup (Met; 45 mg/kg), Diabetes + ES group (50 mg/kg), diabetes + ES group(100 mg/kg) and diabetes + ES group (200 mg/kg). The treatment with sambilotoextract was able to reduce blood sugar levels significantly, were at the ES 100and 200 mg/kg BW doses it was able to reduce blood sugar levels to reach thetarget below 200 mg/kg BW. The dominant flavonoids in Sambiloto leaf extractare believed to be responsible for the effect of blood glucose regulation. Inconclusion, Sambiloto extract affects lowering blood sugar levels in diabetesmellitus white rats by increasing glucose intake to cells and tissues.