Study of Antidiabetic and Antioxidant Activity of Synthetic Derivatives of Natural Compounds

Abstract

Background and Objectives: Chronic hyperglycemia and elevated oxidative stress are hallmarks of diabetes mellitus, a metabolic disease. Bioactive molecules with potential antidiabetic and antioxidant activities can be found in natural substances and their synthetic derivatives. The goal of the current work was to synthesize certain natural substance derivatives and assess their antioxidant, α-amylase, and α-glucosidase inhibitory properties in vitro.
Methods: Selected natural substances were chemically changed with suitable synthetic techniques. The synthesized derivatives were analyzed using acceptable analytical techniques, such as Fourier-transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), and mass spectrometry, when applicable. Antidiabetic efficacy was examined by α-amylase and α-glucosidase inhibition studies, while antioxidant activity was evaluated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay. Percentage inhibition was computed at several concentrations and the half maximum inhibitory concentration (IC 50) was calculated. Reference standards were metformin or acarbose, as appropriate for the chosen assay, and ascorbic acid.
Results: The synthesized compounds displayed concentration dependent biological activity. The % inhibition of α-amylase and α-glucosidase was analyzed at concentration range of 10–100 µg/mL with representative IC₅₀ values 32.5–78.6 µg/mL and 24.8–65.4 µg/mL correspondingly. In the DPPH radical scavenging activity test, the derivatives exhibited typical IC50 values between 18.6 to 56.2 µg/mL, whereas ascorbic acid exhibited an IC50 of 12.4 µg/mL. Among the investigated compounds, the most active candidate demonstrated relatively greater enzyme inhibitory and free radical scavenging activities. The numerical numbers shown are sample preliminary values and not empirically validated results.
Conclusion: Natural substances and their synthetic derivatives may be interesting leads for the development of medicines with dual antidiabetic and antioxidant effects. Evaluation of enzyme inhibition and free-radical scavenging activity may be useful to screen promising candidates for further studies. Further investigations including structure-activity relationship (SAR) analysis, cytotoxicity, pharmacokinetic evaluation and in vivo models would be required to establish their medicinal potential and safety.