Cissus quadrangularis and Dichrostachys glomerata extracts boost GLP-1, inhibit DPP-4, reducing obesity in rats
Background
The global obesity epidemic affects over 2.3 billion individuals, driving significant health and economic burdens. Current weight management strategies often face limitations in efficacy or side effects. The glucagon-like peptide-1 (GLP-1) pathway is a key regulator of glucose homeostasis, satiety, and body weight, with dipeptidyl peptidase-4 (DPP-4) rapidly degrading GLP-1. Enhancing endogenous GLP-1 levels by inhibiting DPP-4 is a validated therapeutic approach for type 2 diabetes and obesity, making natural compounds with this dual action highly relevant for novel interventions.
Study Design
Researchers conducted a preclinical trial using 18 adult male Wistar rats (150-200 g) to evaluate plant extracts. Rats were randomly divided into three groups: a control group fed a normal diet, and two treatment groups. These groups received either Dichrostachys glomerata extract (DGE) (400 mg/kg) or Cissus quadrangularis extract (CQE) (300 mg/kg) daily alongside a normal diet. The study measured GLP-1 levels, DPP-4 activity, food intake, body weight, blood lipids, and fasting blood glucose levels.
Results
Both DGE and CQE significantly increased GLP-1 levels and significantly inhibited DPP-4 activity compared to the control group. These beneficial effects were consistently associated with a significant reduction in food intake, body weight, and fasting blood glucose levels in the treated groups. Furthermore, both extracts positively modified blood lipid profiles, leading to significant changes in HDL, LDL, and triglyceride levels. The findings strongly suggest that these plant extracts exert their anti-obesity effects through mechanisms involving GLP-1 enhancement and DPP-4 inhibition. These results offer potential therapeutic pathways for weight management and metabolic health. Both DGE and CQE significantly increased GLP-1 levels and inhibited DPP-4 activity, leading to reduced food intake, body weight, and improved lipid profiles in rats.
Key Findings
- Dichrostachys glomerata extract (DGE) significantly increased GLP-1 levels in rats.
- Cissus quadrangularis extract (CQE) significantly increased GLP-1 levels in rats.
- Both DGE and CQE significantly inhibited DPP-4 activity compared to controls.
- Treatment with DGE or CQE significantly reduced food intake and body weight in rats.
- Both extracts positively modified blood lipid profiles, including HDL, LDL, and triglycerides.
Why It Matters
This preclinical study highlights the promising potential of Cissus quadrangularis and Dichrostachys glomerata extracts as natural agents for obesity and metabolic health management. For biohackers and individuals exploring natural supplements, these findings suggest a novel mechanism involving GLP-1 and DPP-4 that could complement existing strategies. While these are preclinical results, they lay the groundwork for future human trials, potentially leading to new, accessible, and well-tolerated options for weight management. The identified mechanism of action via GLP-1 enhancement and DPP-4 inhibition aligns with established pharmacological targets for metabolic improvement.
cissus-quadrangularis
dichrostachys-glomerata
obesity
glp-1
dpp-4-inhibition
weight-management