The Potential of Linn in Inducing Glucagon-Like Peptide-1 via SGLT-1 and GLPR in DM Rats.

Background: Glucagon-like peptide 1 (GLP-1) hormone is an incretin hormone that is secreted in the ileum and plays a role in the pancreas to increase insulin secretion, stimulate proliferation, and prevent pancreatic -cell apoptosis. Currently, diabetes mellitus (DM) treatment based on GLP-1 work is being developed, for instance, from herbal plants such as Linn (). Therefore, this study aims to determine the potential of in GLP-1 secretion in the ileum and its action in pancreatic -cells. In addition, this study also aims to determine the active ingredients of (Hib) that interact with sodium-glucose cotransporter-1 (SGLT-1) so that it can increase GLP-1 secretion in the ileum and interact with GLP-1 receptors (GLP-1R) in the pancreas.

Method: This experimental study used 24 experimental animals of Sprague-Dawley type (aged 8-10 weeks, weight 200-250 g) that were divided into 6 groups, namely, (i) normal (C), (ii) normal-Hib 200 (C-Hib200), (iii) normal-Hib 500 (C-Hib500), (iv) DM (C-DM), (v) DM-Hib200, and (vi) DM-Hib500. extract was given orally once a day for 5 weeks. Testing of GLP-1 levels in the ileum and pancreatic tissue was performed by enzyme-linked immunosorbent assay. The prediction of the interaction mechanism of the active substance against GLP-1 was done using molecular docking.

Results: There was a decrease in GLP-1 levels in the ileum of DM rats ( < 0.05). However, DM rats administered 500 mg/kg BW had GLP-1 levels that were the same as in normal rats ( > 0.05). This is due to active ingredients such as leucosin, which binds to SGLT-1. Administration of 500 mg/kg BW in DM rats resulted in GLP-1 levels in the pancreas that were the same as in normal rats ( > 0.05). In addition, the active ingredient of , delphinidin, binds to GLPR in the pancreas.

Conclusion: The active ingredient of can increase GLP-1 secretion in the ileum and can interact with G protein-linked receptors in the pancreas.