Structural Characterization and In Vitro and In Silico Studies on the Anti-α-Glucosidase Activity of Anacardic Acids from Anacardium occidentale
2024

Anti-α-Glucosidase Activity of Anacardic Acids from Cashew Nut Shell Liquid

publication 10 minutes Evidence: high

Author Information

Author(s): da Silva Ana Priscila Monteiro, da Silva Gisele Silvestre, Oiram Filho Francisco, Silva Maria Francilene Souza, Zocolo Guilherme Julião, de Brito Edy Sousa

Primary Institution: Embrapa Agroindústria Tropical, Fortaleza, Brazil

Hypothesis

Can anacardic acids from cashew nut shell liquid effectively inhibit α-glucosidase?

Conclusion

Anacardic acids from cashew nut shell liquid are promising inhibitors of α-glucosidase, with the monoene variant showing the strongest effect.

Supporting Evidence

  • Monoene anacardic acid (AAn1) had the strongest inhibitory effect with an IC50 of 1.78 μg/mL.
  • All anacardic acids significantly outperformed acarbose, a standard diabetes medication.
  • In silico docking suggested that polar groups on the aromatic ring are key for enzyme binding.
  • Toxicity predictions classified anacardic acids as category IV, indicating low toxicity.
  • Pharmacokinetic analysis suggested moderately favorable drug-like properties for anacardic acids.

Takeaway

This study found that certain compounds from cashew nut shells can help lower blood sugar levels by blocking an enzyme that raises glucose after meals.

Methodology

The study involved isolating anacardic acids from cashew nut shell liquid, characterizing them using NMR and MS, and testing their inhibitory effects on α-glucosidase in vitro.

Limitations

The study primarily focused on in vitro results, which may not fully represent in vivo efficacy.

Statistical Information

P-Value

p<0.0001 for AAn1 vs AAn2

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.3390/foods13244107

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