Effectiveness of Lime Peel Extract (Citrus aurantifolia Swingle) against C-Reactive Protein Levels in Alloxan-Induced Wistar Rats

Hyperglycemia is a metabolic disease that is most often found and continuously increasing. Various complications due to hyperglycemia in the blood can cause tissue damage. It will increase free radicals that can trigger an inflammatory response characterized by an increased C-reactive protein in the blood. Prevention can be done by administering flavonoid antioxidant and lime peel containing high flavonoid. This study aims to analyze the efficacy of lime peel extract against C-reactive protein level with hyperglycemia through alloxan-induced Wistar rats (140 mg/kgBW). It is an experimental study using a post-test control group design that was carried out at the Pharmacology Laboratory of the Universitas Surabaya for the period July–August 2020. Experimental Wistar rats were divided into a negative control group, a positive control group, and three groups with different doses of lime peel extract (2.35 mg, 4.7 mg, and 9.4 mg). Treatment was carried out for 30 days before measuring the C-reactive protein levels in the blood using ELISA. The results showed a difference in C-reactive protein level between groups (Man-Whitney, p=0.004). The increase in the dose of lime peel extract (9.4 mg) showed the lowest C-reactive protein level. Therefore, it can be concluded that the administration of lime peel extract in hyperglycemia conditions can reduce the inflammatory process in the body