Archives of Pharmacal Research

, Volume 40, Issue 11, pp 1278–1286 | Cite as

Isorhamnetin derivatives and piscidic acid for hypercholesterolemia: cholesterol permeability, HMG-CoA reductase inhibition, and docking studies

  • Asma Ressaissi
  • Nebil Attia
  • Pedro Luis Falé
  • Rita Pacheco
  • Bruno L. Victor
  • Miguel Machuqueiro
  • Maria Luísa M. Serralheiro
Research Article


Bioactive compounds, such as isorhamnetin and piscidic acid, were obtained from decoctions of cladodes (stem pads from Opuntia ficus-indica). The effect of these phenolic compounds, in a fiber-free extract, were evaluated as inhibitors of cholesterol permeation through a Caco-2 cell monolayer and as 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor. A reduction of 38% in cholesterol permeation through the Caco-2 cell monolayer was obtained, and the phenolic compounds all permeated between 6 and 9%. A mixture of these compounds showed an IC50 of 20.3 μg/mL as an enzyme inhibitor, whereas piscidic acid alone showed an IC50 of 149.6 μg/mL; this was slightly outperformed by the isorhamnetin derivatives. Docking studies confirmed that both piscidic acid and isorhamnetin derivatives, present in the decoction, could adequately bind to the enzyme active site. These results reveal that O. ficus-indica, and cladodes derived there from, is a promising plant for use in the development of new functional foods and pharmaceutical products.


Isorhamnetin derivatives Cholesterol permeability Cell lines HMG-CoA reductase Docking studies Piscidic acid 



We acknowledge financial support from the Fundação para a Ciência e a Tecnologia through Project UID/MULTI/00612/2013.

Compliance with ethical standards

Conflict of interest

The authors declare that there are no conflicts of interest.


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Copyright information

© The Pharmaceutical Society of Korea 2017

Authors and Affiliations

  1. 1.Centro de Química e Bioquímica, Faculdade de CiênciasUniversidade de LisboaLisbonPortugal
  2. 2.UR11ES33‘Integrated Physiology’, Faculty of Sciences of BizerteCarthage UniversityTunisTunisia
  3. 3.Departamento de Química e Bioquímica, Faculdade de CiênciasUniversidade de LisboaLisbonPortugal
  4. 4.Área Departamental de Engenharia QuímicaInstituto Superior de Engenharia de LisboaLisbonPortugal

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