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Dash D, Baral M, Kanungo B. Synthesis of a new tetradentate chelator with 1-Hydoroxy-2(1H)-pyridinone (HOPO) as chelating unit: Interaction with Fe (III), solution thermodynamics and DFT studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128796] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Liao L, Jiang C, Chen J, Shi J, Li X, Wang Y, Wen J, Zhou S, Liang J, Lao Y, Zhang J. Synthesis and biological evaluation of 1,2,4-triazole derivatives as potential neuroprotectant against ischemic brain injury. Eur J Med Chem 2020; 190:112114. [PMID: 32061962 DOI: 10.1016/j.ejmech.2020.112114] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/31/2020] [Accepted: 02/01/2020] [Indexed: 02/07/2023]
Abstract
A series of 1,2,4-triazole derivatives 1-14 was synthesized to investigate their neuroprotective effects and mechanisms of action. Compounds 5-11 noticeably protected PC12 cells from the cytotoxicity of H2O2 or sodium nitroprusside (SNP). Compound 11 was the most effective derivative. Compound 11 chelated Fe (II) iron, scavenged reactive oxygen species (ROS), and restored the mitochondrial membrane potential (MMP). Moreover, it enhanced the activity of the antioxidant defense system by increasing the serum level of superoxide dismutase (SOD) and promoting the nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2). Compound 11 caused certain improvements in behavior, the cerebral infarction area, and serum levels of biochemical indicators (TNF-α, IL-1β, SOD and MDA) in a rat MCAO model. The lethal dose (LD50) of compound 11 in mice receiving intraperitoneal injections was greater than 400 mg/kg. Meanwhile, pharmacokinetic experiments revealed high bioavailability of this compound after both oral and intravenous administration (F = 60.76%, CL = 0.014 mg/kg/h) and a longer half-life (4.26 and 5.11 h after oral and intravenous administration, respectively). Based on these findings, compound 11 may be a promising neuroprotectant for the treatment of ischemic stroke.
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Affiliation(s)
- Liping Liao
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Caibao Jiang
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Jianwen Chen
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Jinguo Shi
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Xinhua Li
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Yang Wang
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Jin Wen
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Shujia Zhou
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Jie Liang
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Yaoqiang Lao
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China
| | - Jingxia Zhang
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Sun Yat-sen University, Guangzhou, 510006, PR China.
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Kaviani S, Izadyar M, Housaindokht MR. DFT investigation on the selective complexation of Fe 3+ and Al 3+ with hydroxypyridinones used for treatment of the aluminium and iron overload diseases. J Mol Graph Model 2018; 80:182-189. [DOI: 10.1016/j.jmgm.2018.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 12/21/2017] [Accepted: 01/04/2018] [Indexed: 01/02/2023]
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Mary CPV, Vijayakumar S, Shankar R. Metal chelating ability and antioxidant properties of Curcumin-metal complexes - A DFT approach. J Mol Graph Model 2017; 79:1-14. [PMID: 29127853 DOI: 10.1016/j.jmgm.2017.10.022] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 10/13/2017] [Accepted: 10/31/2017] [Indexed: 12/20/2022]
Abstract
Curcumin, a well-documented phytochemical compound used to treat various diseases because of its more tolerability in the human body and has no side effects. The present study describes the metal chelating ability of Curcumin for Mn2+, Fe2+ and Zn2+ metal ions and their antioxidant properties using density functional theory in both gas and DMSO solvent phases. Results reveal that the carbonyl group at diketo moiety is destabilized due to the metal ion coordination. The interaction energies reveal that CurEN-Zn2+ are the most stable rather than the CurEN-Mn2+ and CurEN-Fe2+ complexes. The AIM analysis confirms that the interaction between the metal ions and Curcumin are to be electrostatic dominant. The HOMO-LUMO orbital analysis shows that the charge transfer interaction is dominant for CurEN-Mn2+ and CurEN-Fe2+ complexes. The DMSO solvent interactions decrease the stability of the CurEN-M2+ cation complexes. The antioxidant mechanism is more reactive for metal complexes than the isolated Curcumin. Since Curcumin possess both metal chelating and antioxidant properties, it can be used in chelation therapy for the cure of Alzheimer's disease.
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Affiliation(s)
| | - S Vijayakumar
- Department of Medical Physics, Bharathiar University, Coimbatore 641 046, India.
| | - R Shankar
- Department of Physics, Bharathiar University, Coimbatore 641 046, India
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