QSAR modelling of a novel series of methoxylated chalcones as antioxidant agents against Gram-positive bacteria Staphylococcus aureus

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Year : 2025 | Volume :03 | Issue : 01 | Page : –
    By

    Shashikant Verma,

  • Neerja Shukla,

  1. Research Scholar, Department of Chemistry, Nari Shiksha Niketan P.G. College, Mona Chandrawati Gupta Marg, Kaiserbagh, Lucknow, Uttar Pradesh, India
  2. Assistant Professor, Department of Chemistry, Nari Shiksha Niketan P.G. College, Mona Chandrawati Gupta Marg, Kaiserbagh, Lucknow, Uttar Pradesh, India

Abstract

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Background:  Chalcones are aromatic ketones belonging to the flavonoid family. They are plant based compounds and are widely found in nature. From centuries, these bioactive molecules are being utilized in various traditional medicines for treatment of a number of ailments. Chalcones have antibacterial, antiviral, antimalarial, antifungal, antioxidant and antileishmanial properties. They are also used to treat inflammation and cancer. Chalcones act as angiogenesis inhibitor, an important factor in cancer progression and metastasis. Method: QSAR analysis is done on a series of seventeen chalcones derivatives (1-16) using various physicochemical parameters. The study reveals that parameters such as connectivity indices (χ5, χ6), ADME descriptors, molecular weight (MW), molar refractivity (MR), density (D), and LogP showed significant correlations with biological activity. The best results are obtained by performing multiple regression analysis with different models with strong R-squared values indicating robust predictive performance. Result:Combination of various descriptors such as MR, MW, Pz, D, ADMET (LogS), and connectivity Indices (χ1-χ6) have been found to be best for the significant modeling of the anti- bacterial activity. QSAR model pIC50= 3.374+ (-0.4484) χ5+ (0.5824) χ + (-0.2395) ADMET (LogS) optimized with empirical parameters with good statistical quality (R=0.66, R2=0.44) was found to be the best model.Conclusion: The ADME solubility level reflects a molecule’s aqueous solubility, which can be predicted using molecular descriptors like the number of hydrogen bond donors and acceptors, dipole moment, rotatable bond count, and surface area. These factors are crucial in determining the solubility of the various organic compounds.  Increased solubility has been shown to improve the antimicrobacterial activity. Positive sign of the connectivity indices implies that better designed drug can be obtained if there is increase in the branching.

Keywords: QSAR modelling, methoxylated chalcones, Staphylococcus aureus, Gram-positive bacteria, ADME

[This article belongs to International Journal of Biochemistry and Biomolecule Research (ijbbr)]

How to cite this article:
Shashikant Verma, Neerja Shukla. QSAR modelling of a novel series of methoxylated chalcones as antioxidant agents against Gram-positive bacteria Staphylococcus aureus. International Journal of Biochemistry and Biomolecule Research. 2025; 03(01):-.
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Shashikant Verma, Neerja Shukla. QSAR modelling of a novel series of methoxylated chalcones as antioxidant agents against Gram-positive bacteria Staphylococcus aureus. International Journal of Biochemistry and Biomolecule Research. 2025; 03(01):-. Available from: https://journals.stmjournals.com/ijbbr/article=2025/view=0

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Regular Issue Subscription Original Research
Volume 03
Issue 01
Received 03/12/2024
Accepted 23/01/2025
Published 03/02/2025
225