PHYTOCHEMICAL SCREENING AND IN VITRO HMG-COA
REDUCTASE INHIBITION OF OCHNASQUARROSALEAF
EXTRACT: A MOLECULAR DOCKING STUDY ON THE
MANAGEMENT OF HYPERLIPIDEMIA
This study aims at exploring the anti-hyperlipidemic effect of Ochnasquarrosa leaf extract by examining in vitro HMG-CoA
reductase inhibition and molecular docking. The initial phytochemical test showed the presence of flavonoids, phenols,
saponins, sterols, and carbohydrates. The ethanol extract displayed concentration-dependent inhibition of HMG-CoA reductase
with IC 50 value of 53.74 ug/mLwhich depicted that ethanol extract possesses remarkable enzyme inhibition. Molecular
docking studies also showed that some significant phytoconstituentsochnaflavone derivatives, vitexin, and orientin displayed
significant binding energies with HMG-CoA reductase active site and especially with GLU559 amino acid residue similar to
that of atorvastatin, which is the standard drug. These results indicate that O. squarrosa has bioactive compounds that can lead
to the regulation of cholesterol biosynthesis, and could be used as natural alternative or adjunctive in treatment of
hyperlipidemia. Additional research, such as in vivo testing and clinical trials, ought to be done to confirm its therapeutic effect
and safety