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Bortoli M, Dalla Tiezza M, Muraro C, Pavan C, Ribaudo G, Rodighiero A, Tubaro C, Zagotto G, Orian L. Psychiatric Disorders and Oxidative Injury: Antioxidant Effects of Zolpidem Therapy disclosed In Silico. Comput Struct Biotechnol J 2019; 17:311-318. [PMID: 30867894 PMCID: PMC6396081 DOI: 10.1016/j.csbj.2019.02.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 02/01/2019] [Accepted: 02/02/2019] [Indexed: 01/09/2023] Open
Abstract
Zolpidem (N,N-Dimethyl-2-[6-methyl-2-(4-methylphenyl)imidazo[1,2-a]pyridin-3-yl]acetamide) is a well-known drug for the treatment of sleeping disorders. Recent literature reports on positive effects of zolpidem therapy on improving renal damage after cisplatin and on reducing akinesia without sleep induction. This has been ascribed to the antioxidant and neuroprotective capacity of this molecule, and tentatively explained according to a generic structural similarity between zolpidem and melatonin. In this work, we investigate in silico the antioxidant potential of zolpidem as scavenger of five ROSs, acting via hydrogen atom transfer (HAT) mechanism; computational methodologies based on density functional theory are employed. For completeness, the analysis is extended to six metabolites. Thermodynamic and kinetic results disclose that indeed zolpidem is an efficient radical scavenger, similarly to melatonin and Trolox, supporting the biomedical evidence that the antioxidant potential of zolpidem therapy may have a beneficial effect against oxidative injury, which is emerging as an important etiopathogenesis in numerous severe diseases, including psychiatric disorders.
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Key Words
- Antioxidant activity
- DFT calculations
- DFT, Density Functional Theory
- HAT, Hydrogen Atom Transfer (mechanism)
- M06-2X, Minnesota Hybrid functional with 54% Hartree-Fock exchange
- NBO, Natural Bond Orbitals
- NPA, Natural Population Analysis
- Oxidative stress
- PC, Product Complex
- Psychiatric disorders
- RAF, Radical Adduct Formation (mechanism)
- RC, Reactant Complex
- ROS, Reactive Oxygen Species
- Radical scavenging
- SMD, Solvation Model based on Density
- TS, Transition State
- Zolpidem
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Affiliation(s)
- Marco Bortoli
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Marco Dalla Tiezza
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Cecilia Muraro
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Chiara Pavan
- Dipartimento di Medicina, Università degli Studi di Padova, Via Giustiniani 2, 35128 Padova, Italy
| | - Giovanni Ribaudo
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, Via Marzolo 5, 35131 Padova, Italy
| | - Anna Rodighiero
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Giuseppe Zagotto
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, Via Marzolo 5, 35131 Padova, Italy
| | - Laura Orian
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Via Marzolo 1, 35131 Padova, Italy
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