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Bouhlel Chatti I, Krichen Y, Horchani M, Maatouk M, Trabelsi A, Lassoued MA, Ben Jannet H, Ghédira LC. Anthraquinones from Rhamnus alaternus L.: A Phytocosmetic Ingredient with Photoprotective and Antimelanogenesis Properties. Chem Biodivers 2024; 21:e202300876. [PMID: 38037520 DOI: 10.1002/cbdv.202300876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 12/02/2023]
Abstract
The purpose of the present work was to develop a phytocosmetic sunscreen emulsion with antioxidant activity and an anti-melanogenic effect, containing an anthraquinone-enriched extract of Rhamnus alaternus (A.E.). Our findings demonstrated that A.E. decreased the levels of reactive oxygen species, DNA damage, and malondialdehyde induced by UVA in human keratinocytes and melanocytes. Furthermore, the calculated SPF value in vitro of the cream containing A.E. was 14.26±0.152. Later, it was shown that A.E. extract had an inhibitory effect on the amount of melanin. This extract could also reduce B16F10 intracellular tyrosinase activity. Besides, docking studies were carried out to provide a logical justification for the anti-tyrosinase potential. The findings showed that, A.E. may provide protection against UVA-induced oxidative stress and could be thought of as a viable treatment for hyperpigmentation disorders.
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Affiliation(s)
- Ines Bouhlel Chatti
- Unity of Bioactive Natural Substances and Biotechnology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Department of Biology and Geology, Higher Institute of Applied Science and Technology of Gabe s, University of Gabes, Gabes, Tunisia
| | - Yosr Krichen
- Unity of Bioactive Natural Substances and Biotechnology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Mabrouk Horchani
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39), Team: Medicinal Chemistry and Natural Products, Faculty of Science of Monastir, University of Monastir, Avenue of Environment, 5019, Monastir, Tunisia
| | - Mouna Maatouk
- Unity of Bioactive Natural Substances and Biotechnology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Amine Trabelsi
- Unity of Bioactive Natural Substances and Biotechnology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Mohamed Ali Lassoued
- Laboratory of Chemical, Galenic and Pharmacological Development of Drugs, Faculty of Pharmacy, University of Monastir, Rue Avicenne, Monastir, Tunisia
| | - Hichem Ben Jannet
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39), Team: Medicinal Chemistry and Natural Products, Faculty of Science of Monastir, University of Monastir, Avenue of Environment, 5019, Monastir, Tunisia
| | - Leila Chekir Ghédira
- Unity of Bioactive Natural Substances and Biotechnology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
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Zhang Y, Xie L, Zhang D, Xu X, Xu L. Application of Machine Learning Methods to Predict the Air Half-Lives of Persistent Organic Pollutants. Molecules 2023; 28:7457. [PMID: 38005179 PMCID: PMC10673120 DOI: 10.3390/molecules28227457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/01/2023] [Accepted: 11/02/2023] [Indexed: 11/26/2023] Open
Abstract
Persistent organic pollutants (POPs) are ubiquitous and bioaccumulative, posing potential and long-term threats to human health and the ecological environment. Quantitative structure-activity relationship (QSAR) studies play a guiding role in analyzing the toxicity and environmental fate of different organic pollutants. In the current work, five molecular descriptors are utilized to construct QSAR models for predicting the mean and maximum air half-lives of POPs, including specifically the energy of the highest occupied molecular orbital (HOMO_Energy_DMol3), a component of the dipole moment along the z-axis (Dipole_Z), fragment contribution to SAscore (SAscore_Fragments), subgraph counts (SC_3_P), and structural information content (SIC). The QSAR models were achieved through the application of three machine learning methods: partial least squares (PLS), multiple linear regression (MLR), and genetic function approximation (GFA). The determination coefficients (R2) and relative errors (RE) for the mean air half-life of each model are 0.916 and 3.489% (PLS), 0.939 and 5.048% (MLR), 0.938 and 5.131% (GFA), respectively. Similarly, the determination coefficients (R2) and RE for the maximum air half-life of each model are 0.915 and 5.629% (PLS), 0.940 and 10.090% (MLR), 0.939 and 11.172% (GFA), respectively. Furthermore, the mechanisms that elucidate the significant factors impacting the air half-lives of POPs have been explored. The three regression models show good predictive and extrapolation abilities for POPs within the application domain.
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Affiliation(s)
| | | | | | - Xiaojun Xu
- Institute of Bioinformatics and Medical Engineering, School of Electrical and Information Engineering, Jiangsu University of Technology, Changzhou 213001, China; (Y.Z.); (D.Z.)
| | - Lei Xu
- Institute of Bioinformatics and Medical Engineering, School of Electrical and Information Engineering, Jiangsu University of Technology, Changzhou 213001, China; (Y.Z.); (D.Z.)
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Janković N, Tadić J, Milović E, Marković Z, Jeremić S, Petronijević J, Joksimović N, Borović TT, Abbas Bukhari SN. Investigation of the radical scavenging potential of vanillin-based pyrido-dipyrimidines: experimental and in silico approach. RSC Adv 2023; 13:15236-15242. [PMID: 37213339 PMCID: PMC10194046 DOI: 10.1039/d3ra02469e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 04/25/2023] [Indexed: 05/23/2023] Open
Abstract
Antioxidants have a significant contribution in the cell protection against free radicals which may induce oxidative stress, and permanently damage the cells causing different disorders such as tumors, degenerative diseases, and accelerated aging. Nowadays, a multi-functionalized heterocyclic framework plays an important role in drug development, and it is of great importance in organic synthesis and medicinal chemistry. Encouraged by the bioactivity of the pyrido-dipyrimidine scaffold and vanillin core, herein, we made an effort to thoroughly investigate the antioxidant potential of the vanillin-based pyrido-dipyrimidines A-E to reveal novel promising free radical inhibitors. The structural analysis and the antioxidant action of the investigated molecules were performed in silico by DFT calculations. Studied compounds were screened for their antioxidant capacity using in vitro ABTS and DPPH assays. All the investigated compounds showed remarkable antioxidant activity, especially derivative A exhibiting inhibition of free radicals at the IC50 value (ABTS and DPPH assay 0.1 mg ml-1 and 0.081 mg ml-1, respectively). Compound A has higher TEAC values implying its stronger antioxidant activity compared to a trolox standard. The applied calculation method and in vitro tests confirmed that compound A has a strong potential against free radicals and may be a novel candidate for application in antioxidant therapy.
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Affiliation(s)
- Nenad Janković
- University of Kragujevac, Institute for Information Technologies, Department of Sciences Jovana Cvijića bb 34000 Kragujevac Serbia
| | - Julijana Tadić
- Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade Mike Petrovića Alasa 12-14 11351 Vinča Belgrade Serbia
| | - Emilija Milović
- University of Kragujevac, Institute for Information Technologies, Department of Sciences Jovana Cvijića bb 34000 Kragujevac Serbia
| | - Zoran Marković
- University of Kragujevac, Institute for Information Technologies, Department of Sciences Jovana Cvijića bb 34000 Kragujevac Serbia
- The State University of Novi Pazar 36300 Novi Pazar Serbia
| | | | - Jelena Petronijević
- University of Kragujevac, Faculty of Science, Department of Chemistry Radoja Domanovića 12 Kragujevac Serbia
| | - Nenad Joksimović
- University of Kragujevac, Faculty of Science, Department of Chemistry Radoja Domanovića 12 Kragujevac Serbia
| | - Teona Teodora Borović
- Faculty of Sciences, University of Novi Sad Trg Dositeja Obradovića 3 21000 Novi Sad Serbia
| | - Syed Nasir Abbas Bukhari
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University Sakaka Al Jouf 72388 Saudi Arabia
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Khairullina V, Martynova Y, Safarova I, Sharipova G, Gerchikov A, Limantseva R, Savchenko R. QSPR Modeling and Experimental Determination of the Antioxidant Activity of Some Polycyclic Compounds in the Radical-Chain Oxidation Reaction of Organic Substrates. Molecules 2022; 27:molecules27196511. [PMID: 36235050 PMCID: PMC9572093 DOI: 10.3390/molecules27196511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 01/18/2023] Open
Abstract
The present work addresses the quantitative structure−antioxidant activity relationship in a series of 148 sulfur-containing alkylphenols, natural phenols, chromane, betulonic and betulinic acids, and 20-hydroxyecdysone using GUSAR2019 software. Statistically significant valid models were constructed to predict the parameter logk7, where k7 is the rate constant for the oxidation chain termination by the antioxidant molecule. These results can be used to search for new potentially effective antioxidants in virtual libraries and databases and adequately predict logk7 for test samples. A combination of MNA- and QNA-descriptors with three whole molecule descriptors (topological length, topological volume, and lipophilicity) was used to develop six statistically significant valid consensus QSPR models, which have a satisfactory accuracy in predicting logk7 for training and test set structures: R2TR > 0.6; Q2TR > 0.5; R2TS > 0.5. Our theoretical prediction of logk7 for antioxidants AO1 and AO2, based on consensus models agrees well with the experimental value of the measure in this paper. Thus, the descriptor calculation algorithms implemented in the GUSAR2019 software allowed us to model the kinetic parameters of the reactions underlying the liquid-phase oxidation of organic hydrocarbons.
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Affiliation(s)
- Veronika Khairullina
- Faculty of Chemistry, Bashkir State University, 450076 Ufa, Russia
- Correspondence: ; Tel.: +7-963-906-6567
| | - Yuliya Martynova
- Faculty of Chemistry, Bashkir State University, 450076 Ufa, Russia
| | - Irina Safarova
- Faculty of Chemistry, Bashkir State University, 450076 Ufa, Russia
| | - Gulnaz Sharipova
- Faculty of Chemistry, Bashkir State University, 450076 Ufa, Russia
| | | | - Regina Limantseva
- Institute of Petrochemistry and Catalysis of the Ufa Federal Research Center of the Russian Academy of Sciences, 450075 Ufa, Russia
| | - Rimma Savchenko
- Institute of Petrochemistry and Catalysis of the Ufa Federal Research Center of the Russian Academy of Sciences, 450075 Ufa, Russia
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Mannich bases of alizarin: synthesis and evaluation of antioxidant capacity. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02492-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Sang L, Wang Y, Zong C, Wang P, Zhang H, Guo D, Yuan B, Pan Y. Machine Learning for Evaluating the Cytotoxicity of Mixtures of Nano-TiO 2 and Heavy Metals: QSAR Model Apply Random Forest Algorithm after Clustering Analysis. Molecules 2022; 27:molecules27186125. [PMID: 36144857 PMCID: PMC9500633 DOI: 10.3390/molecules27186125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/09/2022] [Accepted: 09/13/2022] [Indexed: 11/24/2022] Open
Abstract
With the development and application of nanomaterials, their impact on the environment and organisms has attracted attention. As a common nanomaterial, nano-titanium dioxide (nano-TiO2) has adsorption properties to heavy metals in the environment. Quantitative structure-activity relationship (QSAR) is often used to predict the cytotoxicity of a single substance. However, there is little research on the toxicity of interaction between nanomaterials and other substances. In this study, we exposed human renal cortex proximal tubule epithelial (HK-2) cells to mixtures of eight heavy metals with nano-TiO2, measured absorbance values by CCK-8, and calculated cell viability. PLS and two ensemble learning algorithms are used to build multiple QSAR models for data sets, and the test set R2 is increased from 0.38 to 0.78 and 0.85, and RMSE is decreased from 0.18 to 0.12 and 0.10. After selecting the better random forest algorithm, the K-means clustering algorithm is used to continue to optimize the model, increasing the test set R2 to 0.95 and decreasing the RMSE to 0.08 and 0.06. As a reliable machine algorithm, random forest can be used to predict the toxicity of the mixture of nano-metal oxides and heavy metals. The cluster analysis can effectively improve the stability and predictability of the model, and provide a new idea for the prediction of cytotoxicity model in the future.
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Affiliation(s)
- Leqi Sang
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Yunlin Wang
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Cheng Zong
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Pengfei Wang
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Huazhong Zhang
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210006, China
| | - Dan Guo
- Department of Preventive Health Branch, The Affiliated Jiangning Hospital of Nanjing Medical University, Nanjing 211100, China
| | - Beilei Yuan
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, China
- Correspondence: (B.Y.); (Y.P.); Tel.: +86-25-5813-9553 (B.Y.)
| | - Yong Pan
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 211816, China
- Correspondence: (B.Y.); (Y.P.); Tel.: +86-25-5813-9553 (B.Y.)
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Alov P, Tsakovska I, Pajeva I. Hybrid Classification/Regression Approach to QSAR Modeling of Stoichiometric Antiradical Capacity Assays' Endpoints. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072084. [PMID: 35408486 PMCID: PMC9000788 DOI: 10.3390/molecules27072084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/16/2022] [Accepted: 03/22/2022] [Indexed: 11/16/2022]
Abstract
Quantitative structure-activity relationships (QSAR) are a widely used methodology allowing not only a better understanding of the mechanisms of chemical reactions, including radical scavenging, but also to predict the relevant properties of chemical compounds without their synthesis, isolation and experimental testing. Unlike the QSAR modeling of the kinetic antioxidant assays, modeling of the assays with stoichiometric endpoints depends strongly on the number of hydroxyl groups in the antioxidant molecule, as well as on some integral molecular descriptors characterizing the proportion of OH-groups able to enter and complete the radical scavenging reaction. In this work, we tested the feasibility of a "hybrid" classification/regression approach, consisting of explicit classification of individual OH-groups as involved in radical scavenging reactions, and using further the number of these OH-groups as a descriptor in simple-regression QSAR models of antiradical capacity assays with stoichiometric endpoints. A simple threshold classification based on the sum of trolox-equivalent antiradical capacity values was used, selecting OH-groups with specific radical stability- and reactivity-related electronic parameters or their combination as "active" or "inactive". We showed that this classification/regression modeling approach provides a substantial improvement of the simple-regression QSAR models over those built on the number of total phenolic OH-groups only, and yields a statistical performance similar to that of the best reported multiple-regression QSARs for antiradical capacity assays with stoichiometric endpoints.
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Affiliation(s)
- Petko Alov
- Department of QSAR and Molecular Modelling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
- Department of Mathematical Modeling and Numerical Analysis, Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
- Correspondence: (P.A.); (I.P.)
| | - Ivanka Tsakovska
- Department of QSAR and Molecular Modelling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
| | - Ilza Pajeva
- Department of QSAR and Molecular Modelling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
- Correspondence: (P.A.); (I.P.)
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Monteiro AFM, Scotti MT, Speck-Planche A, Barros RPC, Scotti L. In Silico Studies for Bacterystic Evaluation against Staphylococcus aureus of 2-Naphthoic Acid Analogues. Curr Top Med Chem 2020; 20:293-304. [DOI: 10.2174/1568026619666191206111742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 09/01/2019] [Accepted: 09/10/2019] [Indexed: 01/27/2023]
Abstract
Background:
Staphylococcus aureus is a gram-positive spherical bacterium commonly present in
nasal fossae and in the skin of healthy people; however, in high quantities, it can lead to complications that
compromise health. The pathologies involved include simple infections, such as folliculitis, acne, and delay in
the process of wound healing, as well as serious infections in the CNS, meninges, lung, heart, and other areas.
Aim:
This research aims to propose a series of molecules derived from 2-naphthoic acid as a bioactive in the
fight against S. aureus bacteria through in silico studies using molecular modeling tools.
Methods:
A virtual screening of analogues was done in consideration of the results that showed activity according
to the prediction model performed in the KNIME Analytics Platform 3.6, violations of the Lipinski
rule, absorption rate, cytotoxicity risks, energy of binder-receptor interaction through molecular docking, and
the stability of the best profile ligands in the active site of the proteins used (PDB ID 4DXD and 4WVG).
Results:
Seven of the 48 analogues analyzed showed promising results for bactericidal action against S.
aureus.
Conclusion:
It is possible to conclude that ten of the 48 compounds derived from 2-naphthoic acid presented
activity based on the prediction model generated, of which seven presented no toxicity and up to one violation
to the Lipinski rule.
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Affiliation(s)
| | - Marcus Tullius Scotti
- Federal University of Paraíba, Health Science Center, 50670-910, Joao Pessoa, PB, Brazil
| | - Alejandro Speck-Planche
- Department of Chemistry, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Trubetskaya Str., 8, b. 2, 119992, Moscow, Russian Federation
| | | | - Luciana Scotti
- Federal University of Paraíba, Health Science Center, 50670-910, Joao Pessoa, PB, Brazil
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