1
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Sestito JM, Harris TAL, Wang Y. Structural descriptor and surrogate modeling for design of biodegradable scaffolds. J Mech Behav Biomed Mater 2024; 152:106415. [PMID: 38301521 DOI: 10.1016/j.jmbbm.2024.106415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 12/29/2023] [Accepted: 01/20/2024] [Indexed: 02/03/2024]
Abstract
Biodegradable scaffolds are important to regenerative medicine in that they provide an amicable environment for tissue regrowth. However, establishing structure-property (SP) relationships for scaffold design is challenging due to the complexity of the three-dimensional porous scaffold geometry. The complexity requires high-dimensional geometric descriptors. The training of such a SP surrogate model will need a large amount of experimental or simulation data. In this work, a schema of constructing SP relationship surrogates is developed to predict the degraded mechanical properties from the initial scaffold geometry. A new structure descriptor, the extended surfacelet transform (EST), is proposed to capture important details of pores associated with the degradation of scaffolds. The efficiency is further enhanced with principal component analysis to reduce the high-dimensional EST data into a low-dimensional representation. The schema also includes a kinetic Monte Carlo biodegradation model to simulate the biodegradation of polymer scaffolds and to generate the training data for the formation of SP relationships. The schema is demonstrated with the design of polycaprolactone biodegradable scaffolds by connecting the initial scaffold geometry to the degraded compressive modulus.
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Affiliation(s)
- Jesse M Sestito
- College of Engineering, Valparaiso University, Valparaiso, IN, 46383, USA.
| | - Tequila A L Harris
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Yan Wang
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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2
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Ozon EA, Iuga IDM, Mititelu M, Musuc AM, Manolescu BN, Petrescu S, Cusu JP, Rusu A, Surdu VA, Oprea E, Neacșu SM, Karampelas O, Elian V. Pharmacotechnical, Physico-Chemical, and Antioxidant Evaluation of Newly Developed Capsule Formulations. Int J Mol Sci 2023; 24:11426. [PMID: 37511185 PMCID: PMC10379583 DOI: 10.3390/ijms241411426] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
The excess of free radicals causes numerous imbalances in the body that lead to premature aging, the degradation of internal structures, and the appearance of numerous pathologies responsible for the increased risk of premature death. The present work aims to evaluate the physical, chemical, pharmacotechnical, and antioxidant activity of newly achieved capsule formulations. These two formulations were F1a.i., which contains melatonin:biotin:coenzyme Q10 (weight ratio of 1:2:60), and F2a.i., which contains quercetin:resveratrol:biotin:coenzyme Q10 (weight ratio of 10:10:1:10). The adequate selection of the excipient types and amounts for final capsule formulations (F1c.c., F2c.c.) was based on preformulation studies performed on the powders containing active ingredients. The antioxidant activity assessed using three methods (ABTS, DPPH, and FRAP) compared with acid ascorbic as a positive control demonstrated that the F2c.c. formulation possesses the strongest antioxidant capacity. The results confirmed the suitable formulation and the accurate selection of the types and amounts of active ingredients, as well as the auxiliary excipients used in newly developed capsule formulations as supplements with an excellent antioxidant effect on the human body.
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Affiliation(s)
- Emma Adriana Ozon
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania
| | - Izabela Dana Maria Iuga
- Department of Clinical Laboratory and Food Safety, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania
| | - Magdalena Mititelu
- Department of Clinical Laboratory and Food Safety, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania
| | - Adina Magdalena Musuc
- "Ilie Murgulescu" Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Bogdan Nicolae Manolescu
- "C. Nenitescu" Department of Organic Chemistry, Faculty of Applied Chemistry and Science of Materials, University "Politehnica" of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Simona Petrescu
- "Ilie Murgulescu" Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Jeanina Pandele Cusu
- "Ilie Murgulescu" Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Adriana Rusu
- "Ilie Murgulescu" Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Vasile-Adrian Surdu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University "Politehnica" of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Eliza Oprea
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1-3 Portocalilor Way, 060101 Bucharest, Romania
| | | | - Oana Karampelas
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, 6 Traian Vuia Street, 020945 Bucharest, Romania
| | - Viviana Elian
- Department of Diabetes, Nutrition and Metabolic Diseases "Carol Davila" University of Medicine and Pharmacy, INDNBM N.C. Paulescu, 5-7 Ion Movila Street, 030167 Bucharest, Romania
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3
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Karagecili H, İzol E, Kirecci E, Gulcin İ. Determination of Antioxidant, Anti-Alzheimer, Antidiabetic, Antiglaucoma and Antimicrobial Effects of Zivzik Pomegran-ate (Punica granatum)—A Chemical Profiling by LC-MS/MS). Life (Basel) 2023; 13:life13030735. [PMID: 36983890 PMCID: PMC10058309 DOI: 10.3390/life13030735] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/23/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Zivzik pomegranate (Punica granatum) has recently sparked considerable interest due to its nutritional and antioxidant properties. To evaluate the antioxidant capacities of P. granatum juice, ethanol (EEZP), and water (WEZP) extracts from peel and seed, the antioxidant methods of 2,2′-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid radical (ABTS•+) scavenging, 1,1-diphenyl-2-picrylhydrazyl free radical (DPPH•) scavenging, Fe3+-2,4,6-tris(2-pyridyl)-S-triazine (TPTZ) reducing, Fe3+ reducing, and Cu2+ reducing methods were used. The antioxidant capacities of samples were compared with the most commonly used synthetic antioxidants, i.e., BHA, BHT, α-tocopherol, and Trolox. In terms of setting an example, the IC50 values of EEZP for ABTS•+ and DPPH• scavenging activities were found to be lower than standards, at 5.9 and 16.1 μg/mL, respectively. The phenolic and flavonoid contents in EEZP peel were 59.7 mg GAE/g and 88.0 mg QE/g, respectively. Inhibition of α-glycosidase, α-amylase, acetylcholinesterase, and human carbonic anhydrase II (hCA II) enzymes was also investigated. EEZP demonstrated IC50 values of 7.3 μg/mL against α-glycosidase, 317.7 μg/mL against α-amylase, 19.7 μg/mL against acetylcholinesterase (AChE), and 106.3 μg/mL against CA II enzymes. A total of 53 phenolic compounds were scanned, and 30 compounds were determined using LC-MS/MS. E. coli and S. aureus bacteria were resistant to all four antibiotics used as standards in hospitals.
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Affiliation(s)
- Hasan Karagecili
- Department of Nursing, Faculty of Health Sciences, Siirt University, 56100 Siirt, Turkey
- Correspondence: (H.K.); (İ.G.); Tel.: +90-4422314375 (İ.G.)
| | - Ebubekir İzol
- Bee and Natural Products R & D and P & D Application and Research Center, Bingöl University, 12000 Bingol, Turkey
- Department of Chemistry, Faculty of Science, Ataturk University, 25240 Erzurum, Turkey
| | - Ekrem Kirecci
- Department of Basic Medical Sciences, Faculty of Medicine, Microbiology, Kahramanmaraş Sütçü İmam University, 46050 Kahramanmaras, Turkey
| | - İlhami Gulcin
- Department of Chemistry, Faculty of Science, Ataturk University, 25240 Erzurum, Turkey
- Correspondence: (H.K.); (İ.G.); Tel.: +90-4422314375 (İ.G.)
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4
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Moore JL, Oppelt J, Senft L, Franke A, Scheitler A, Dukes MW, Alix HB, Saunders AC, Karbalaei S, Schwartz DD, Ivanović-Burmazović I, Goldsmith CR. Diquinol Functionality Boosts the Superoxide Dismutase Mimicry of a Zn(II) Complex with a Redox-Active Ligand while Maintaining Catalyst Stability and Enhanced Activity in Phosphate Solution. Inorg Chem 2022; 61:19983-19997. [PMID: 36445832 DOI: 10.1021/acs.inorgchem.2c03256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the current work, we demonstrate ligand design concepts that significantly improve the superoxide dismutase (SOD) activity of a zinc complex; the catalysis is enhanced when two quinol groups are present in the polydentate ligand. We investigate the mechanism through which the quinols influence the catalysis and determine the impact of entirely removing a chelating group from the original hexadentate ligand. Our results suggest that SOD mimicry with these compounds requires a ligand that coordinates Zn(II) strongly in both its oxidized and reduced forms and that the activity proceeds through Zn(II)-semiquinone complexes. The complex with two quinols displays greatly enhanced catalytic ability, with the activity improving by as much as 450% over a related complex with a single quinol. In the reduced form of the diquinol complex, one quinol appears to coordinate to the zinc much more weakly than the other. We believe that superoxide can more readily displace this portion of the ligand, facilitating its coordination to the metal center and thereby hastening the SOD reactivity. Despite the presence of two redox-active groups that may communicate through intramolecular hydrogen bonding and redox tautomerism, only one quinol undergoes two-electron oxidation to a para-quinone during the catalysis. After the formation of the para-quinone, the remaining quinol deprotonates and binds tightly to the metal, ensuring that the complex remains intact in its oxidized state, thereby maintaining its catalytic ability. The Zn(II) complex with the diquinol ligand is highly unusual for a SOD mimic in that it performs more efficiently in phosphate solution.
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Affiliation(s)
- Jamonica L Moore
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama36849, United States
| | - Julian Oppelt
- Department Chemie, Ludwig- Maximilians Universität (LMU) München, München81377, Germany
| | - Laura Senft
- Department Chemie, Ludwig- Maximilians Universität (LMU) München, München81377, Germany
| | - Alicja Franke
- Department Chemie, Ludwig- Maximilians Universität (LMU) München, München81377, Germany
| | - Andreas Scheitler
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr. 1, Erlangen91508, Germany
| | - Meghan W Dukes
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama36849, United States
| | - Haley B Alix
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama36849, United States
| | - Alexander C Saunders
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama36849, United States
| | - Sana Karbalaei
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama36849, United States
| | - Dean D Schwartz
- Department of Anatomy, Physiology, and Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, Alabama36849, United States
| | | | - Christian R Goldsmith
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama36849, United States
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5
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Mehrabi M, Karami F, Siah M, Esmaeili S, Khodarahmi R. Is curcumin an active suicidal antioxidant only in the aqueous environments? JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [DOI: 10.1007/s13738-022-02538-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Ou E, Xu C, Jia Q, Xu X, Chen Z, Liu J, Zhang H, Xu G, Zhao Y. Synthesis and in Vivo Evaluation of Triphenylphosphonium Conjugated Trimetazidine with Enhanced Cardioprotection and Ability to Restore Mitochondrial Function. Chem Biodivers 2022; 19:e202200445. [PMID: 35713419 DOI: 10.1002/cbdv.202200445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/17/2022] [Indexed: 11/09/2022]
Abstract
Trimetazidine exhibits great therapeutic potential in cardiovascular diseases and mitochondria-mediated cardioprotection by trimetazidine has been widely reported. In this study, to enhance its cardioprotection, the triphenylphosphonium-based modification of trimetazidine was conducted to deliver it specifically to mitochondria. Fifteen triphenylphosphonium (TPP) conjugated trimetazidine analogs were designed and synthesized. Their protective effects were evaluated in vivo using a tert-butyl hydroperoxide (t-BHP) induced zebrafish injury model. Structure-activity relationship correlations revealed the best way to couple the TPP moiety to trimetazidine, and led to a new conjugate (18a) with enhanced therapeutic properties. Compared to trimetazidine, 18a effectively protects against heart injury in the zebrafish model at a much lower concentration. Further study in t-BHP treated zebrafish and H9c2 cells demonstrated that 18a protects against cardiomyocyte death and damage by inhibiting excessive production of ROS, maintaining mitochondrial morphology, and preventing mitochondrial dysfunction. Consequently, 18a can be regarded as a potential therapeutic agent for cardioprotection.
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Affiliation(s)
- E Ou
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Chao Xu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Qi Jia
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Xiaojia Xu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Zhenyu Chen
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Jiansong Liu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Hanyuan Zhang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Geng Xu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Yu Zhao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, 510006, P. R. China
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7
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Benhassine A, Chouiter MI, Kara Ali M, Kacem-Chaouche N, Merazig H, Bencharif M, Belfaitah A. New Cd(II) complex derived from (1-methylimidazol-2-yl) methanol: Synthesis, crystal structure, spectroscopic study, DFT and TD-DFT calculations, antimicrobial activity and free-radical scavenging capacity. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Benreka S, Zradni FZ, Madi F, Kirsch G, Kasmi-Mir S. Synthesis of thiazolylidenethiazoloquinazolinone hybrids from monocarbonyl curcumin analogues. Characterization, bio-evaluation and DFT study. J Sulphur Chem 2021. [DOI: 10.1080/17415993.2021.1971669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Soufiane Benreka
- Université Blida1, Laboratoire de Chimie Physique Moléculaire et Macromoléculaire (LCPMM), Faculté des Sciences, Blida, Algérie
| | - Fatima-Zohra Zradni
- Université des Sciences et de la Technologie d’Oran, Laboratoire de Synthèse organique, Physicochimie, Biomolécules et Environnement (LSPBE)
| | - Fatiha Madi
- Laboratoire de Chimie Computationnelle et Nanostructure, Département des Sciences de la Matière, Faculté des Mathématiques et de l'Informatique et des Sciences de la Matière. Université 08 mai 1945 Guelma, Algérie
| | | | - Souad Kasmi-Mir
- Université Blida1, Laboratoire de Chimie Physique Moléculaire et Macromoléculaire (LCPMM), Faculté des Sciences, Blida, Algérie
- Université Ibn Khaldoun de Tiaret, Laboratoire Synthèse et Catalyse, Algérie
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9
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Esmaeili S, Ghobadi N, Nazari D, Pourhossein A, Rasouli H, Adibi H, Khodarahmi R. Curcumin-based Antioxidant and Glycohydrolase Inhibitor Compounds: Synthesis and In Vitro Appraisal of the Dual Activity Against Diabetes. Med Chem 2021; 17:677-698. [DOI: 10.2174/1573406416666200506083718] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 03/07/2020] [Accepted: 03/25/2020] [Indexed: 11/22/2022]
Abstract
Background:
Curcumin, as the substantial constituent of the turmeric plant (Curcuma longa),
plays a significant role in the prevention of various diseases, including diabetes. It possesses ideal structure
features as an enzyme inhibitor, including a flexible backbone, hydrophobic nature, and several
available hydrogen bond (H-bond) donors and acceptors.
Objective:
The present study aimed at synthesizing several novel curcumin derivatives and further
evaluation of these compounds for possible antioxidant and anti-diabetic properties along with inhibitory
effect against two carbohydrate-hydrolyzing enzymes, α-amylase and α-glucosidase, as these enzymes
are therapeutic targets for attenuation of postprandial hyperglycemia.
Methods:
Therefore, curcumin-based pyrido[2,3-d]pyrimidine derivatives were synthesized and identified
using an instrumental technique like NMR spectroscopy and then screened for antioxidant and enzyme
inhibitory potential. Total antioxidant activity, reducing power assay and 1,1-diphenyl-2-
picrylhydrazyl (DPPH•) radical scavenging activity were done to appraise the antioxidant potential of
these compounds in vitro.
Results:
Compounds L6-L9 showed higher antioxidant activity while L4, L9, L12 and especially L8
exhibited the best selectivity index (lowest α-amylase/α-glucosidase inhibition ratio).
Conclusion:
These antioxidant inhibitors may be potential anti-diabetic drugs, not only to reduce glycemic
index but also to limit the activity of the major reactive oxygen species (ROS) producing pathways.
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Affiliation(s)
- Sajjad Esmaeili
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Nazanin Ghobadi
- Department of Chemistry, School of Science, Alzahra University, Vanak, Tehran, Iran
| | - Donya Nazari
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Alireza Pourhossein
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hassan Rasouli
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hadi Adibi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Reza Khodarahmi
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
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10
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Hu B, Gao M, Boakye-Yiadom KO, Ho W, Yu W, Xu X, Zhang XQ. An intrinsically bioactive hydrogel with on-demand drug release behaviors for diabetic wound healing. Bioact Mater 2021; 6:4592-4606. [PMID: 34095619 PMCID: PMC8141414 DOI: 10.1016/j.bioactmat.2021.04.040] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/20/2021] [Accepted: 04/24/2021] [Indexed: 12/14/2022] Open
Abstract
Prolonged, intense inflammation and excessive oxidative stress hinder diabetic wounds from healing normally, leading to disorders downstream including the postponement of re-epithelialization and extracellular matrix (ECM) formation. Herein, we report a hyaluronic acid (HA) and chitosan based hydrogel (OHA-CMC) with inherent antibacterial and hemostatic activities fabricated via Schiff base reaction. By encapsulating nanotechnologically-modified curcumin (CNP) and epidermal growth factor (EGF) into the hydrogel, OHA-CMC/CNP/EGF exhibited extraordinary antioxidant, anti-inflammatory, and migration-promoting effects in vitro. Meanwhile, OHA-CMC/CNP/EGF presented on-demand drug release in synchrony with the phases of the wound healing process. Specifically, curcumin was rapidly and constantly released to alleviate inflammation and oxidative stress in the early phase of wound healing, while a more gradual and sustained release of EGF supported late proliferation and ECM remodeling. In a diabetic full-thickness skin defect model, OHA-CMC/CNP/EGF dramatically improved wound healing with ideal re-epithelialization, granulation tissue formation, and skin appendage regeneration, highlighting the enormous therapeutic potential this biomaterial holds as a diabetic wound dressing. OHA-CMC hydrogel showed excellent inherent antibacterial and hemostatic activities. OHA-CMC co-delivered curcumin and EGF with on-demand drug release that met the repair requirements of each healing stage. OHA-CMC/CNP/EGF showed potent antioxidant and anti-inflammation activities, and was capable of promoting cell migration. OHA-CMC/CNP/EGF significantly accelerated diabetic wound healing.
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Affiliation(s)
- Bin Hu
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - Mingzhu Gao
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - Kofi Oti Boakye-Yiadom
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - William Ho
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Wei Yu
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - Xiaoyang Xu
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Xue-Qing Zhang
- Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
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11
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Production of curcumin-resveratrol cocrystal using cocrystallization with supercritical solvent. J Supercrit Fluids 2021. [DOI: 10.1016/j.supflu.2021.105190] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Mehrabi M, Esmaeili S, Ezati M, Abassi M, Rasouli H, Nazari D, Adibi H, Khodarahmi R. Antioxidant and glycohydrolase inhibitory behavior of curcumin-based compounds: Synthesis and evaluation of anti-diabetic properties in vitro. Bioorg Chem 2021; 110:104720. [PMID: 33662896 DOI: 10.1016/j.bioorg.2021.104720] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/17/2021] [Accepted: 02/02/2021] [Indexed: 02/02/2023]
Abstract
Naturally occurring anti-diabetic compound curcumin can prevent diabetes complications due to antioxidant and anti-inflammatory properties as well as the attenuation of postprandial hyperglycemia. In this line, we have synthesized thirteen curcumin based derivatives (L1-L13) by multi-component reaction, characterized by IR, 1HNMR, 13C NMR, MS, elemental analysis and evaluated for possible antioxidant properties and α-glucosidase (α-Glu) and α-amylase (α-Amy) inhibitory potential. The curcumin-based pyrano[2,3-d]pyrimidine derivatives could inhibit α-Glu and α-Amy enzyme activity which showed desirable antioxidant activity. Furthermore, among the series, L5, L12, L9, L10, L8 and L11 were identified as more potent inhibitors of α-Glu enzyme than curcumin and the compounds of L12, L4, L9, L5, L10, L8, L13, and L11 were the stronger inhibitors of the α-Amy enzyme in vitro. Besides, among them, L12 had the lowest IC50 for the inhibition of both enzymes. Since strong inhibitors for pancreatic α-Amy result in the progression of severe gastrointestinal side effects, the inhibitors that show the lower α-Amy/α-Glu inhibitory ratio have attracted much attention in medicinal chemistry. Besides, considering antioxidant characteristics of synthesized compounds, the L7 derivative with the highest antioxidant activity and the lowest "α-Amy/α-Glu inhibitory" ratio could be an appropriate candidate for further study through the rational drug design to the exploration of a new class of powerful anti-diabetic drugs.
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Affiliation(s)
- Maryam Mehrabi
- Department of Biology, Faculty of Sciences, Razi University, Kermanshah, Iran
| | - Sajjad Esmaeili
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Ezati
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Maryam Abassi
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hassan Rasouli
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Soil and Water Research Institute (SWRI), Karaj, Iran; National Institute of Genetic Engineering and Plant Biotechnology (NIGEB), Karaj, Iran
| | - Donya Nazari
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hadi Adibi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Reza Khodarahmi
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Pharmacognosy and Biotechnology, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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13
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Two in one: bifunctional derivatives of trolox acting as antimalarial and antioxidant agents. Future Med Chem 2020; 12:1845-1854. [PMID: 33032467 DOI: 10.4155/fmc-2020-0106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: The aim of the present work was to set-up compounds that are able to act simultaneously as antimalarial and antioxidants. Trolox, a known antioxidant was chosen as a core structure to ensure the antioxidant activity and contribute to antiplasmodial effect. Results: Ten compounds were prepared in one step and evaluated on chloroquino-sensitive (3D7) and chloroquino-resistant (FcB1) strains of Plasmodium falciparum. The most active compound (3d) shows antiplasmodial activity in the range of chloroquine against chloroquino-sensitive and chloroquino-resistant P. falciparum strain. The antioxidant activity of (3d) was conducted through four tests and was found to be more potent than trolox itself and L-ascorbic acid. Conclusion: Compound (3d) can be considered as an excellent lead molecule for further in vivo studies. This study paves the way for building large chemical libraries to be investigated in the field of malaria.
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The Versatility of Antioxidant Assays in Food Science and Safety-Chemistry, Applications, Strengths, and Limitations. Antioxidants (Basel) 2020; 9:antiox9080709. [PMID: 32764410 PMCID: PMC7464350 DOI: 10.3390/antiox9080709] [Citation(s) in RCA: 147] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/29/2020] [Accepted: 07/31/2020] [Indexed: 01/09/2023] Open
Abstract
Currently, there is a growing interest in screening and quantifying antioxidants from biological samples in the quest for natural and effective antioxidants to combat free radical-related pathological complications. Antioxidant assays play a crucial role in high-throughput and cost-effective assessment of antioxidant capacities of natural products such as medicinal plants and food samples. However, several investigators have expressed concerns about the reliability of existing in vitro assays. Such concerns arise mainly from the poor correlation between in vitro and in vivo results. In addition, in vitro assays have the problem of reproducibility. To date, antioxidant capacities are measured using a panel of assays whereby each assay has its own advantages and limitations. This unparalleled review hotly disputes on in vitro antioxidant assays and elaborates on the chemistry behind each assay with the aim to point out respective principles/concepts. The following critical questions are also addressed: (1) What make antioxidant assays coloured? (2) What is the reason for working at a particular wavelength? (3) What are the advantages and limitations of each assay? and (4) Why is a particular colour observed in antioxidant–oxidant chemical reactions? Furthermore, this review details the chemical mechanism of reactions that occur in each assay together with a colour ribbon to illustrate changes in colour. The review ends with a critical conclusion on existing assays and suggests constructive improvements on how to develop an adequate and universal antioxidant assay.
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Antioxidant Activities of Jeju Wax Apple (Syzygium samarangense) and Safety of Human Keratinocytes and Primary Skin Irritation Test. COSMETICS 2020. [DOI: 10.3390/cosmetics7020039] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
This study analyzed the antioxidant activity, cell viability, and human skin primary irritation test using the hot-water extracts of the Syzygium samarangense. As a result of the recent warmer climate, tropical plants have flourished on Jeju Island, and S. samarangense is one of these plants known to have biological activities. In this study, the hot-water extract of S. samarangense leaf and branch was analyzed. Antioxidant activity was measured by DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2′-azino-bis(3-ethyl-benzthiazoline-6-sulfonic acid)) assays, and the DMPD (dimethyl-4-phenylenediamine) radical scavenging activity, nitrite scavenging activity, ferrous-ion chelating activity, cupric reducing antioxidant capacity, reducing power assay, ferric reducing antioxidant power, total phenol content, and total flavonoid content were also measured. In addition, cell viability was measured by MTT assay in human keratinocyte cells (HaCaT), and the safety of the extract for use on the skin was evaluated in the human skin primary irritation test. The antioxidant activities, except DMPD radical scavenging activity and ferrous-ion chelating activity, were stronger in the branch extract than in leaf extract, and the total phenol and flavonoid contents were also higher in the branch extract. Slight irritation was observed in the human skin primary irritation test. However, it was possible to observe sufficient antioxidant capacity at a concentration lower than the concentration used in the irritation test; therefore, if the concentration of the extract is appropriately adjusted, this suggests that it is a possible natural material suitable for use in cosmetics.
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Francenia Santos-Sánchez N, Salas-Coronado R, Villanueva-Cañongo C, Hernández-Carlos B. Antioxidant Compounds and Their Antioxidant Mechanism. Antioxidants (Basel) 2019. [DOI: 10.5772/intechopen.85270] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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Co(II) complexes derived from (1-methyl-1H-imidazol-2-yl)methanol: Synthesis, characterization, spectroscopic study, DFT/TD-DFT calculations and biological evaluation. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.119073] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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18
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Zhu MY, Raza MU, Zhan Y, Fan Y. Norepinephrine upregulates the expression of tyrosine hydroxylase and protects dopaminegic neurons against 6-hydrodopamine toxicity. Neurochem Int 2019; 131:104549. [PMID: 31539561 DOI: 10.1016/j.neuint.2019.104549] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/27/2019] [Accepted: 09/17/2019] [Indexed: 10/26/2022]
Abstract
As a classic neurotransmitter in the brain, norepinephrine (NE) also is an important modulator to other neuronal systems. Using primary cultures from rat ventral mesencephalon (VM) and dopaminergic cell line MN9D, the present study examined the neuroprotective effects of NE and its effects on the expression of tyrosine hydroxylase (TH). The results showed that NE protected both VM cultures and MN9D cells against 6-hydroxydopamine-caused apoptosis, with possible involvement of adrenal receptors. In addition, treatment with NE upregulated TH protein levels in dose- and time-dependent manner. Further experiments to investigate the potential mechanisms underlying this NE-induced upregulation of TH demonstrated a marked increase in protein levels of the brain-derived neurotrophic factor (BDNF) and the phosphorylated extracellular signal-regulated protein kinase 1 and 2 (pERK1/2) in VM cultures treated with NE. In MN9D cells, a significantly increase of TH and pERK1/2 protein levels were observed after their transfection with BDNF cDNA or exposure to BDNF peptides. Treatment of VM cultures with K252a, an antagonist of the tropomyosin-related kinase B, blocked the upregulatory effects of NE on TH, BDNF and pERK1/2. Administration of MEK1 & MEK2 inhibitors also reversed NE-induced upregulation of TH and pERK1/2. Moreover, ChIP assay showed that treatment with NE or BDNF increased H4 acetylation in the TH promoter. These results suggest that the neuroprotection and modulation of NE on dopaminergic neurons are mediated via BDNF and MAPK/ERK pathways, as well as through epigenetic histone modification, which may have implications for the improvement of therapeutic strategies for Parkinson's disease.
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Affiliation(s)
- Meng-Yang Zhu
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA.
| | - Muhammad U Raza
- Department of Biomedical Sciences, Quillen College of Medicine, East Tennessee State University, Johnson City, TN, USA
| | - Yanqiang Zhan
- Department of Neurology, Remin Hospital of the Wuhan University, Wuhan, China
| | - Yan Fan
- Department of Biochemistry, Nantong University College of Medicine, Nantong, China
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Elhusseiny AF, Hussien HM, Hassan HH. An Initial Demonstration of Polyester Monomer Coordination Properties: Synthesis and Biological Activity of Metal Complexes Derived from a New Nanosized Diol. LETT ORG CHEM 2019. [DOI: 10.2174/1570178615666181009115435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A part of a running research project directed to building coordinated polymers based on the
rigid aromatic s-triazine, the researchers reported the synthesis, characterization, antimicrobial, antioxidant
and anti-inflammatory activities of four new transition metal complexes derived from the
nanosized diol monomer (H2L ligand) as early representatives of its nanosized o-naphthol-based polyester.
The reaction of the new nanosized N2O2 donor diimine containing sulfone with zinc (II), copper
(II), nickel (II) and cobalt (II) ions offered nonconducting metal complexes. The SEM image showed
the diol monomer was organized as well-defined nanosized rod-like morphology. Spectroscopic and
magnetic susceptibility studies displayed the tetrahedral geometries for Zn (II), Co (II) and Ni (II)
complexes while the Cu (II) complex had square planar geometry. The antioxidant and antiinflammatory
activities were in the order [Cu2L2].4H2O > [Zn2L2] > [Ni (HL)2] > [Co2L2] > H2L. Despite
the ligand, [Cu2L2].4H2O, [Zn2L2] and [Co2L2] complexes displayed no efficacy against the
screened microbes, only the tetrahedral Ni (II) complex exhibited moderate activity. The reporting
complexes possessed several notable advantages that render them as promising alternatives for the development
of therapeutic agents. Selection of the rigid O-substituted naphthol ring as a source of Odonor
ligands is expected to construct high dimensional frameworks and more easily contributing and
controlling metallic topology.
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Affiliation(s)
- Amel F. Elhusseiny
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 2-Moharram Beck, Alexandria-21568, Egypt
| | - Hend M. Hussien
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Pharos University, Canal El Mahmoudia Street, Alexandria 21311, Egypt
| | - Hammed H.A.M. Hassan
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 2-Moharram Beck, Alexandria-21568, Egypt
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A Kinetic Approach of DPPH Free Radical Assay of Ferulate-Based Protic Ionic Liquids (PILs). Molecules 2018; 23:molecules23123201. [PMID: 30563037 PMCID: PMC6321392 DOI: 10.3390/molecules23123201] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/14/2018] [Accepted: 11/16/2018] [Indexed: 12/22/2022] Open
Abstract
The antiradical efficiency (AE) and kinetic behavior of a new ferulate-based protic ionic liquids (PILs) were described using 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical assay. The reduction of the DPPH free radical (DPPH•) was investigated by measuring the decrease in absorbance at 517 nm. The time to reach steady state for the reaction of parent acid (ferulic acid) and synthesized PILs with DPPH• was continuously recorded for 1 h. Results revealed that the AE of 2-butylaminoethanol ferulate (2BAEF), 3-dimethylaminopropanol ferulate (3DMAPF) and 3-diethylaminopropanol ferulate (3DEAPF) PILs have improved compared to ferulic acid (FA) as the reaction class changes from low to medium. This attributed to the strong hydrogen abstraction occurred in the PILs. Furthermore, these PILs were found to have a good kinetic behavior compared to FA due to the high rate constant (k₂) (164.17, 242.84 and 244.73 M-1 s-1, respectively). The alkyl chain length and more alkyl substituents on the nitrogen atom of cation were believed to reduce the cation-anion interaction and speed up the hydrogen atom transfer (HAT) and electron transfer (ET) mechanisms; hence, increased rate constant was observed leading to a strong antioxidant activity of the synthesized PILs.
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Benhassine A, Boulebd H, Anak B, Bouraiou A, Bouacida S, Bencharif M, Belfaitah A. Copper(II) and zinc(II) as metal-carboxylate coordination complexes based on (1-methyl-1H-benzo[d]imidazol-2-yl) methanol derivative: Synthesis, crystal structure, spectroscopy, DFT calculations and antioxidant activity. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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22
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Zhu MY. Noradrenergic Modulation on Dopaminergic Neurons. Neurotox Res 2018; 34:848-859. [DOI: 10.1007/s12640-018-9889-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/05/2018] [Accepted: 03/08/2018] [Indexed: 12/24/2022]
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Nakanishi I, Ohkubo K, Ogawa Y, Matsumoto KI, Ozawa T, Fukuzumi S. Aluminium ion-promoted radical-scavenging reaction of methylated hydroquinone derivatives. Org Biomol Chem 2018; 14:7956-61. [PMID: 27492849 DOI: 10.1039/c6ob01470d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of the aluminium ion (Al(3+)) on the scavenging reaction of a 2,2-diphenyl-1-picrylhydrazyl radical (DPPH˙), as a reactivity model of reactive oxygen species, with hydroquinone (QH2) and its methylated derivatives (MenQH2, n = 1-4) was investigated using stopped-flow and electrochemical techniques in a hydroalcoholic medium. The second-order rate constants (k) for the DPPH˙-scavenging reaction of the hydroquinones increased with the increasing number of methyl substituents. Upon addition of Al(3+), the k values significantly increased depending on the concentration of Al(3+). Such an accelerating effect of Al(3+) on the DPPH˙-scavenging rates of the hydroquinones results from the remarkable positive shift of the one-electron reduction potential (Ered) of DPPH˙ in the presence of Al(3+). These results demonstrate that Al(3+), a strong Lewis acid, can act as a radical-scavenging promoter by stabilising the one-electron reduced species of the radical, although Al(3+) is reported not only to act as a pro-oxidant but also to strongly interact with biomolecules, showing toxicities.
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Affiliation(s)
- Ikuo Nakanishi
- Quantitative RedOx Sensing Team (QRST), Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), Inage-ku, Chiba 263-8555, Japan.
| | - Kei Ohkubo
- Quantitative RedOx Sensing Team (QRST), Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), Inage-ku, Chiba 263-8555, Japan. and Division of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan and Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Yukihiro Ogawa
- Quantitative RedOx Sensing Team (QRST), Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), Inage-ku, Chiba 263-8555, Japan. and Graduate School of Advanced Integration Science, Chiba University, Inage-ku, Chiba 263-8522, Japan
| | - Ken-Ichiro Matsumoto
- Quantitative RedOx Sensing Team (QRST), Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), Inage-ku, Chiba 263-8555, Japan. and Graduate School of Advanced Integration Science, Chiba University, Inage-ku, Chiba 263-8522, Japan
| | - Toshihiko Ozawa
- Division of Oxidative Stress Research, Showa Pharmaceutical University, Machida, Tokyo 194-8543, Japan
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea and Faculty of Science and Technology, Meijo University, SENTAN, Japan Science and Technology Agency (JST), Nagoya, Aichi 468-8502, Japan
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Kaur K, Kaur J, Kumar R, Mehta SK. Formulation and physiochemical study of α-tocopherol based oil in water nanoemulsion stabilized with non toxic, biodegradable surfactant: Sodium stearoyl lactate. ULTRASONICS SONOCHEMISTRY 2017; 38:570-578. [PMID: 27566966 DOI: 10.1016/j.ultsonch.2016.08.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 08/19/2016] [Accepted: 08/19/2016] [Indexed: 05/16/2023]
Abstract
The unique properties such as high optical clarity, stability and enhanced bioavailability of nanoemulsion make them useful for food, cosmetic and pharmaceutical industries. In this work, sodium stearoyl lactate and Tween 80 surfactants were collectively used to fabricate alpha tocopherol based oil in water nanoemulsion using high energy ultrasonication method. The spherical nature of pure and drug loaded nanoemulsion has been confirmed with transmission electron microscopy (TEM). The influence of pH, dilution, surfactant concentration and ionic strength on average particle size of pure and nutraceutical (benzylisothiocyanate and curcumin) encapsulated emulsion was examined. The prepared emulsion exhibited good stability up to 90days in salt solution (50-200mM) and different pH conditions. The cumulative release % of benzylisothiocyanate and curcumin was found to be 50.29% in 36h and 89.15% in 150h respectively. The antioxidant activity of pure, benzylisothiocyanate, curcumin and cocktail (benzylisothiocyanate and curcumin) nanoemulsion was calculated with 2,2-diphenyl-1-picrylhydrazyl radical. The IC50 value of different antioxidant showed that benzylisothiocyanate nanoemulsion acted as better antioxidant as compared to pure and curcumin encapsulated nanoemulsion. Also the cell viability of pure nanoemulsion was found to be 24% on hep G2 cell. The effect of UV light irradiation on curcumin and benzylisothiocyanate stability was carried out in different solvent conditions (water/ethanol and nanoemulsion). The degradation of curcumin by the impact of UV light was successfully controlled by trapping in NEm.
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Affiliation(s)
- Khushwinder Kaur
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.
| | - Jaspreet Kaur
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Raj Kumar
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - S K Mehta
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
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Milaeva E, Shpakovsky D, Dyadchenko V, Gryzlov A, Gracheva Y, Antonenko T, Parulava M, Albov D, Aslanov L, Dubova L, Shevtsov P, Neganova M, Shevtsova E. Synthesis and biological activity of novel Au(I) complexes with a protective antioxidant 2,6-di-tert-butylphenol group. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.08.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Yu M, Ward MB, Franke A, Ambrose SL, Whaley ZL, Bradford TM, Gorden JD, Beyers RJ, Cattley RC, Ivanović-Burmazović I, Schwartz DD, Goldsmith CR. Adding a Second Quinol to a Redox-Responsive MRI Contrast Agent Improves Its Relaxivity Response to H2O2. Inorg Chem 2017; 56:2812-2826. [DOI: 10.1021/acs.inorgchem.6b02964] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Meng Yu
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Meghan B. Ward
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Alicja Franke
- Department of Chemistry and Pharmacy, University Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Stephen L. Ambrose
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Zachary L. Whaley
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Thomas Miller Bradford
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - John D. Gorden
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Ronald J. Beyers
- Auburn University Magnetic Resonance Imaging Research Center, Auburn, Alabama 36849, United States
| | - Russell C. Cattley
- Department
of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, Alabama 36849, United States
| | | | - Dean D. Schwartz
- Department of Anatomy, Physiology, and
Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, Alabama 36849, United States
| | - Christian R. Goldsmith
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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Kar S, Roy K, Leszczynski J. On Applications of QSARs in Food and Agricultural Sciences: History and Critical Review of Recent Developments. CHALLENGES AND ADVANCES IN COMPUTATIONAL CHEMISTRY AND PHYSICS 2017. [DOI: 10.1007/978-3-319-56850-8_7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Antonenko T, Shpakovsky D, Gracheva Y, Balashova T, Pushkarev A, Bochkarev M, Milaeva E. Lanthanide benzoates with 2,6-di- tert -butylphenol moiety: Synthesis, luminescent and antioxidant properties. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.10.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sancineto L, Piccioni M, De Marco S, Pagiotti R, Nascimento V, Braga AL, Santi C, Pietrella D. Diphenyl diselenide derivatives inhibit microbial biofilm formation involved in wound infection. BMC Microbiol 2016; 16:220. [PMID: 27654924 PMCID: PMC5031294 DOI: 10.1186/s12866-016-0837-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 09/13/2016] [Indexed: 12/13/2022] Open
Abstract
Background Organoselenium compounds have antimicrobial activity against some bacteria and fungi; furthermore, the antioxidant activity of diselenides has been demonstrated. The aim of the present work was to examine the in vitro minimal inhibitory concentration of a panel of differently substituted diselenides and their effectiveness in inhibiting biofilm formation and dispersing preformed microbial biofilm of Staphylococcus epidermidis, Staphylococcus aureus, Streptococcus pyogenes and Pseudomonas aeruginosa and the yeast Candida albicans, all involved in wound infections. Moreover, the cytotoxicity of the compounds was determined in human dermal fibroblast and keratinocytes. In closing, we tested their direct antioxidant activity. Results Diselenides showed different antimicrobial activity, depending on the microorganism. All diselenides demonstrated a good antibiofilm activity against S. aureus and S. epidermidis, the compounds camphor diselenide, bis[ethyl-N-(2’-selenobenzoyl) glycinate] and bis[2’-seleno-N-(1-methyl-2-phenylethyl) benzamide] were active against S. pyogenes and C. albicans biofilm while only diselenides 2,2’-diselenidyldibenzoic acid and bis[ethyl-N-(2’-selenobenzoyl) glycinate] were effective against P. aeruginosa. Moreover, the compounds bis[ethyl-N-(2’-selenobenzoyl) glycinate] and bis[2’-seleno-N-(1-methyl-2-phenylethyl) benzamide] showed an antioxidant activity at concentrations lower than the 50 % of cytotoxic concentration. Conclusions Because microbial biofilms are implicated in chronic infection of wounds and treatment failure, the combination of antimicrobial activity and potential radical scavenging effects may contribute to the improvement of wound healing. Therefore, this study suggests that bis[ethylN-(2’-selenobenzoyl) glycinate] and bis[2’-seleno-N-(1-methyl-2-phenylethyl) benzamide] are promising compounds to be used in preventing and treating microbial wound infections.
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Affiliation(s)
- Luca Sancineto
- Department of Pharmaceutical Sciences, University of Perugia, Via del Giochetto, 06122, Perugia, Italy
| | - Miranda Piccioni
- Department of Pharmaceutical Sciences, University of Perugia, Via del Giochetto, 06122, Perugia, Italy
| | - Stefania De Marco
- Department of Pharmaceutical Sciences, University of Perugia, Via del Giochetto, 06122, Perugia, Italy
| | - Rita Pagiotti
- Department of Pharmaceutical Sciences, University of Perugia, Via del Giochetto, 06122, Perugia, Italy
| | - Vanessa Nascimento
- Laboratorio de Sıntese de Substancias de Selenio Bioativas, Centro de Ciencias Fısicas e Matematicas, Departamento de Quımica, Universidade Federal de Santa Catarina, 88040-900, Florianopolis, SC, Brazil
| | - Antonio Luiz Braga
- Laboratorio de Sıntese de Substancias de Selenio Bioativas, Centro de Ciencias Fısicas e Matematicas, Departamento de Quımica, Universidade Federal de Santa Catarina, 88040-900, Florianopolis, SC, Brazil
| | - Claudio Santi
- Department of Pharmaceutical Sciences, University of Perugia, Via del Giochetto, 06122, Perugia, Italy
| | - Donatella Pietrella
- Department of Pharmaceutical Sciences, University of Perugia, Via del Giochetto, 06122, Perugia, Italy.
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Antioxidants, quinone reductase inducers and acetylcholinesterase inhibitors from Spondias tuberosa fruits. J Funct Foods 2016. [DOI: 10.1016/j.jff.2015.12.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Abstract
For more than half a century free radical-induced alterations at cellular and organ levels have
been investigated as a probable underlying mechanism of a number of adverse health conditions. Consequently,
significant research efforts have been spent for discovering more effective and potent antioxidants /
free radical scavengers for treatment of these adverse conditions. Being by far the most used antioxidants
among natural and synthetic compounds, mono- and polyphenols have been the focus of both experimental
and computational research on mechanisms of free radical scavenging. Quantum chemical studies have provided
a significant amount of data on mechanisms of reactions between phenolic compounds and free radicals outlining a
number of properties with a key role for the radical scavenging activity and capacity of phenolics. The obtained quantum
chemical parameters together with other molecular descriptors have been used in quantitative structure-activity relationship
(QSAR) analyses for the design of new more effective phenolic antioxidants and for identification of the most useful
natural antioxidant phenolics. This review aims at presenting the state of the art in quantum chemical and QSAR studies
of phenolic antioxidants and at analysing the trends observed in the field in the last decade.
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Affiliation(s)
- Petko Alov
- Department of QSAR and Molecular Modelling, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences. 105 Acad. G. Bonchev St., 1113 Sofia, Bulgaria.
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The electrochemical approach to antioxidant activity assay of metal complexes with dipicolylamine ligand, containing 2,6-di-tert-butylphenol groups, based on electrochemical DPPH-test. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.07.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Demir S, Güder A, Yazıcılar TK, Çağlar S, Büyükgüngör O. Syntheses, crystallographic, mass-spectroscopic determination and antioxidant studies of Co(II), Ni(II) and Cu(II) complexes of a new imidazol based Schiff base. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 150:821-828. [PMID: 26112106 DOI: 10.1016/j.saa.2015.06.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 05/30/2015] [Accepted: 06/02/2015] [Indexed: 06/04/2023]
Abstract
A new imidazole-based Schiff base, 2-((1H-imidazol-4-yl)methyleneamino)benzylalcohol (HL) and corresponding analogous bis(2-((1H-imidazol-4-yl)methyleneimino)benzylalcohol)metal(II) perchlorates (M: Co(1), Ni(2), Cu(3)) have prepared and characterized by elemental analyses, ESI-MS, IR, UV-Vis spectroscopies and conductivity measurements. X-ray single crystal structures of 1 and 2 have been also determined. Elemental analyses, spectroscopic and conductance data of 3 demonstrated similar structural features with these of crystallographically characterized complexes and based upon this relevances, HL ligands are neutrally coordinated to metal(II) ions in tridentate mode and all complexes are isostructural, dicathionic, contain perchlorate anions as complementary ions and, are in octahedral geometry with the formulae of [M(HL)2](ClO4)2 (for 3) and [M(HL)2](ClO4)2·H2O (for 1 and 2). Radical scavenging activities of the complexes have been evaluated by using DPPH, DMPD(+), and ABTS(+) assays. SC50 values (μg/mL) of the complexes and standards on DPPH, DMPD(+), ABTS(+) follow the sequences, BHA (9.06±0.33)>CMPD3 (15.62±0.52)>CMPD2 (17.43±0.29)>Rutin (21.65±0.60)>CMPD1 (25.67±0.51)>Trolox (28.57±0.37), Rutin>BHA>CMPD3>CMPD2>Trolox>CMPD1, and Trolox>BHA>CMPD3>CMPD2>Rutin>CMPD1 respectively.
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Affiliation(s)
- Serkan Demir
- Department of Industrial Engineering, Faculty of Engineering, Giresun University, Giresun, Turkey.
| | - Aytaç Güder
- Vocational High School of Health Services, Department of Medical Services and Techniques, Giresun University, Giresun, Turkey
| | - Turan K Yazıcılar
- Department of Chemical Engineering, Faculty of Engineering, Ondokuz Mayis University, 55200 Atakum, Samsun, Turkey
| | - Sema Çağlar
- Department of Chemistry, Faculty of Arts and Sciences, Erzincan University, Erzincan, Turkey
| | - Orhan Büyükgüngör
- Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayis University, 55200 Atakum, Samsun, Turkey
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Rashed K, Guder A. Comparative Study of Antioxidant Activity from some Egyptian Plants and Phytochemical Composition. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/rjmp.2015.146.159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Icsel C, Yilmaz VT, Kaya Y, Samli H, Harrison WTA, Buyukgungor O. New palladium(ii) and platinum(ii) 5,5-diethylbarbiturate complexes with 2-phenylpyridine, 2,2′-bipyridine and 2,2′-dipyridylamine: synthesis, structures, DNA binding, molecular docking, cellular uptake, antioxidant activity and cytotoxicity. Dalton Trans 2015; 44:6880-95. [DOI: 10.1039/c5dt00728c] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
DNA interaction, antioxidant and cytotoxic activities of Pd(ii)/Pt(ii) 5,5-diethylbarbiturate complexes were evaluated.
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Affiliation(s)
- Ceyda Icsel
- Department of Chemistry
- Faculty of Arts and Sciences
- Uludag University
- 16059 Bursa
- Turkey
| | - Veysel T. Yilmaz
- Department of Chemistry
- Faculty of Arts and Sciences
- Uludag University
- 16059 Bursa
- Turkey
| | - Yunus Kaya
- Department of Chemistry
- Faculty of Arts and Sciences
- Uludag University
- 16059 Bursa
- Turkey
| | - Hale Samli
- Department of Genetics
- Faculty of Veterinary Medicine
- Uludag University
- 16059 Bursa
- Turkey
| | | | - Orhan Buyukgungor
- Department of Physics
- Faculty of Arts and Sciences
- Ondokuz Mayis University
- 55159 Samsun
- Turkey
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Victoria FN, Anversa R, Penteado F, Castro M, Lenardão EJ, Savegnago L. Antioxidant and antidepressant-like activities of semi-synthetic α-phenylseleno citronellal. Eur J Pharmacol 2014; 742:131-8. [DOI: 10.1016/j.ejphar.2014.09.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 08/28/2014] [Accepted: 09/01/2014] [Indexed: 11/29/2022]
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Alaşalvar C, Soylu MS, Güder A, Albayrak Ç, Apaydın G, Dilek N. Molecular structure, quantum mechanical calculation and radical scavenging activities of (E)-4,6-dibromo-2-[(3,5-dimethylphenylimino)methyl]-3-methoxyphenol and (E)-4,6-dibromo-2-[(2,6-dimethylphenylimino)methyl]-3-methoxyphenol compounds. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 130:357-366. [PMID: 24810021 DOI: 10.1016/j.saa.2014.03.069] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 03/03/2014] [Accepted: 03/21/2014] [Indexed: 06/03/2023]
Abstract
In this study, (E)-4,6-dibromo-2-[(3,5-dimethylphenylimino)methyl]-3-methoxyphenol and (E)-4,6-dibromo-2-[(2,6-dimethylphenylimino)methyl]-3-methoxyphenol compounds have been synthesized and characterized by using X-ray crystallographic method, FT-IR and Density functional method. The molecular geometry, vibrational frequencies of the title compounds in the ground state have been calculated by using B3LYP with the 6-31G(d,p) basis set. The tautomeric form of the compounds has been demonstrated by using single crystal X-ray method, FT-IR spectrometer and DFT method. In addition, HOMO-LUMO energy gap, molecular electrostatic potential map and NBO analysis of the compounds are performed at B3LYP/6-31G(d,p) level. It may be remarked that the free radical scavenging activities of the title compounds were assessed using DPPH, DMPD+, and ABTS+ assays. The obtained results show that especially compound 2 has effective DPPH (SC50 1.52±0.14 μg/mL), DMPD+ (SC50 1.22±0.21 μg/mL), and ABTS+ (SC50 3.32±0.17 μg/mL) scavenging activities compared with standards (BHA, rutin, and trolox).
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Affiliation(s)
- Can Alaşalvar
- Giresun University, Technical Science Vocational High School, Department of Electric and Energy, 28100 Giresun, Turkey.
| | - Mustafa Serkan Soylu
- Giresun University, Faculty of Art and Science, Department of Physics, 28100 Giresun, Turkey
| | - Aytaç Güder
- Giresun University, Vocational High School of Health Services, Department of Medical Services and Techniques, 28100 Giresun, Turkey
| | - Çiğdem Albayrak
- Sinop University, Faculty of Arts and Sciences, Department of Chemistry, 57000 Sinop, Turkey
| | - Gökhan Apaydın
- Karadeniz Technical University, Faculty of Arts and Sciences, Department of Physics, 61080 Trabzon, Turkey
| | - Nefise Dilek
- Aksaray University, Faculty of Arts and Sciences, Department of Physics, 68100 Aksaray, Turkey
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Study of leaf metabolome modifications induced by UV-C radiations in representative Vitis, Cissus and Cannabis species by LC-MS based metabolomics and antioxidant assays. Molecules 2014; 19:14004-21. [PMID: 25197936 PMCID: PMC6271074 DOI: 10.3390/molecules190914004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 08/14/2014] [Accepted: 08/27/2014] [Indexed: 11/23/2022] Open
Abstract
UV-C radiation is known to induce metabolic modifications in plants, particularly to secondary metabolite biosynthesis. To assess these modifications from a global and untargeted perspective, the effects of the UV-C radiation of the leaves of three different model plant species, Cissus antarctica Vent. (Vitaceae), Vitis vinifera L. (Vitaceae) and Cannabis sativa L. (Cannabaceae), were evaluated by an LC-HRMS-based metabolomic approach. The approach enabled the detection of significant metabolite modifications in the three species studied. For all species, clear modifications of phenylpropanoid metabolism were detected that led to an increased level of stilbene derivatives. Interestingly, resveratrol and piceid levels were strongly induced by the UV-C treatment of C. antarctica leaves. In contrast, both flavonoids and stilbene polymers were upregulated in UV-C-treated Vitis leaves. In Cannabis, important changes in cinnamic acid amides and stilbene-related compounds were also detected. Overall, our results highlighted phytoalexin induction upon UV-C radiation. To evaluate whether UV-C stress radiation could enhance the biosynthesis of bioactive compounds, the antioxidant activity of extracts from control and UV-C-treated leaves was measured. The results showed increased antioxidant activity in UV-C-treated V. vinifera extracts.
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Gonçalves LC, Victória FN, Lima DB, Borba PM, Perin G, Savegnago L, Lenardão EJ. CuI/glycerol mediated stereoselective synthesis of 1,2-bis-chalcogen alkenes from terminal alkynes: synthesis of new antioxidants. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.109] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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41
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Santos C, Botelho G, Caldeira I, Torres A, Ferreira FM. Antioxidant activity assessment in fruit liquors and spirits: methods comparison. CIÊNCIA E TÉCNICA VITIVINÍCOLA 2014. [DOI: 10.1051/ctv/20142901028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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42
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Lorendeau D, Dury L, Genoux-Bastide E, Lecerf-Schmidt F, Simões-Pires C, Carrupt PA, Terreux R, Magnard S, Di Pietro A, Boumendjel A, Baubichon-Cortay H. Collateral sensitivity of resistant MRP1-overexpressing cells to flavonoids and derivatives through GSH efflux. Biochem Pharmacol 2014; 90:235-45. [DOI: 10.1016/j.bcp.2014.05.017] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 05/16/2014] [Accepted: 05/19/2014] [Indexed: 10/25/2022]
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43
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Lipid metabolites with free-radical scavenging activity from Euphorbia helioscopia L. Chem Phys Lipids 2014; 181:90-8. [DOI: 10.1016/j.chemphyslip.2014.03.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 03/05/2014] [Accepted: 03/06/2014] [Indexed: 12/19/2022]
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Alaşalvar C, Soylu MS, Güder A, Albayrak Ç, Apaydın G, Dilek N. Crystal structure, DFT and HF calculations and radical scavenging activities of (E)-4,6-dibromo-3-methoxy-2-[(3-methoxyphenylimino)methyl]phenol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 125:319-327. [PMID: 24566110 DOI: 10.1016/j.saa.2014.01.104] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 01/21/2014] [Accepted: 01/27/2014] [Indexed: 06/03/2023]
Abstract
In this study, (E)-4,6-dibromo-3-methoxy-2-[(3-methoxyphenylimino)methyl]phenol has been synthesized and characterized by using X-ray technique and FT-IR experimentally and using B3LYP/6-31G(d,p) and HF/6-31G(d,p) methods theoretically. The intermolecular and intramolecular interactions of the title compound have been determined according to X-ray results. The molecular geometry, vibrational frequencies of the title compound in the ground state have been calculated using the density functional B3LYP and HF method with the 6-31G(d,p) basis set and calculated bond parameters and vibrational frequencies values show good agreement with experimental values. Theoretical and experimental results show that tautomeric form of the structure is phenol-imine form. Besides HOMO-LUMO energy gap, molecular electrostatic potential map were performed at B3LYP/6-31G(d,p) level. It is worthy note of that, the free radical scavenging activities of the title compound were assessed using DPPH˙, DMPD˙(+), and ABTS˙(+) assays. The obtained results show that the title compound has effective DPPH˙ (SC50 2.61±0.09 μg/mL), DMPD˙(+) (SC50 2.82±0.14 μg/mL), and ABTS˙(+) (SC50 4.91±0.18 μg/mL) radical scavenging activities when compared with standard antioxidants (BHA, rutin, and trolox).
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Affiliation(s)
- Can Alaşalvar
- Giresun University, Faculty of Art and Science, Department of Physics, 28100 Giresun, Turkey.
| | - Mustafa Serkan Soylu
- Giresun University, Faculty of Art and Science, Department of Physics, 28100 Giresun, Turkey
| | - Aytaç Güder
- Giresun University, Vocational High School of Health Services, Department of Medical Services and Techniques, 28100 Giresun, Turkey
| | - Çiğdem Albayrak
- Sinop University, Faculty of Arts and Sciences, Department of Chemistry, 57000 Sinop, Turkey
| | - Gökhan Apaydın
- Karadeniz Technical University, Faculty of Arts and Sciences, Department of Physics, 61080 Trabzon, Turkey
| | - Nefise Dilek
- Aksaray University, Faculty of Arts and Sciences Department of Physics, 68100 Aksaray, Turkey
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45
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Park SH, Lee SJ, Jeon M, Kim SY, Mun OJ, Kim M, Kong CS, Lee DG, Yu KH, Kim YY, Lee SH. Evaluation of Biological Activities of Fermented Hizikia fusiformis Extracts. ACTA ACUST UNITED AC 2014. [DOI: 10.5352/jls.2014.24.3.304] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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46
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김수은, Lee Jin Tae, Young Hun Kim. Antioxidant Activity and Whitening Efficacy of Ethanolic Extract of Herb Complex (Oenothera laciniata, Phellinus linteus and Glycyrrhiza uralensis Fischer). ACTA ACUST UNITED AC 2014. [DOI: 10.15810/jic.2014.10.1.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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47
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Bong YJ, Jeong JK, Park KY. Fermentation Properties and Increased Health Functionality of Kimchi by Kimchi Lactic Acid Bacteria Starters. ACTA ACUST UNITED AC 2013. [DOI: 10.3746/jkfn.2013.42.11.1717] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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48
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Chang HF, Wu CH, Yang LL. Antitumour and free radical scavenging effects of γ-mangostin isolated from Garcinia mangostana pericarps against hepatocellular carcinoma cell. ACTA ACUST UNITED AC 2013; 65:1419-28. [PMID: 23927480 DOI: 10.1111/jphp.12111] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2012] [Accepted: 06/17/2013] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Liver cancer is one of the highest rate diseases in southeastern Asia. Recently, many of functional foods and alternative medicines are very popularly utilized to prevent chronic diseases and cancer in Taiwan. In this study, we wanted to select and develop some of novel effectual agents or phytochemicals of γ-mangostin for clinical management or prevent hepatocellular carcinoma cell (HCC). METHODS Lipid peroxidation (LPO) is an autocatalytic mechanism which induced tissue injure and carcinogenesis. In this study, the inhibitory activity of γ-mangostin on oxidative damage induced rat mitochondria LPO, the free radical scavenging of γ-mangostin and the apoptotic effects of γ-mangostin on HepG2 cells were investigated. KEY FINDINGS γ-Mangostin processed activity to inhibit LPO and scavenge 2,2-diphenyl-1-picrylhydrazyl. γ-Mangostin showed antiproliferative activity and induced nuclear condensation and apoptotic bodies appearance under Giemsa staining by microscopic observation. In addition, γ-mangostin showed increases of hypodiploid cells via propidium iodide, 2'7'-dichlorofluorescein diacetate, and 3,3'-dihexyloxacarbocyanine iodide staining by flow cytometry analysis in HepG2 cells. CONCLUSIONS γ-Mangostin has demonstrated free radical scavenging activity, and antiproliferative and apoptotic activity in HepG2 cells. The proof suggests that γ-mangostin is a lead compound candidate for clinical management or prevent HCC.
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Affiliation(s)
- Hui-Fang Chang
- Department of Pharmacognosy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
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Cesari I, Hoerlé M, Simoes-Pires C, Grisoli P, Queiroz EF, Dacarro C, Marcourt L, Moundipa PF, Carrupt PA, Cuendet M, Caccialanza G, Wolfender JL, Brusotti G. Anti-inflammatory, antimicrobial and antioxidant activities of Diospyros bipindensis (Gürke) extracts and its main constituents. JOURNAL OF ETHNOPHARMACOLOGY 2013; 146:264-270. [PMID: 23333745 DOI: 10.1016/j.jep.2012.12.041] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 12/21/2012] [Accepted: 12/23/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Diospyros bipindensis (Gürke) stem bark is used in Cameroon by Baka Pygmies for the treatment of respiratory disorders. AIM OF THE STUDY To assess the anti-inflammatory, antibacterial and antioxidant properties of constituents from the bark extracts through bioassay-guided fractionation. MATERIALS AND METHODS The anti-inflammatory activity of extracts, fractions and pure compounds was assessed through the inhibition of the pro-inflammatory mediator nuclear factor-kappa B (NF-κB) transcriptional activity and nitric oxide (NO) production. DPPH, ABTS and ORAC assays were used for determining the antioxidant properties. The activity against Streptococcus pneumoniae, Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli and Klebsiella pneumoniae, was evaluated on the basis of the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) by the macrodilution method. RESULTS The water extract showed antimicrobial activity against S. pneumoniae (MIC: 300 μg/ml) and S. pyogenes (MIC: 300 μg/ml). The dichloromethane extract efficiently inhibited NF-κB transcriptional activity and NO production and exhibited significant antioxidant activity in the ORAC assay. An interesting activity was also found against S. pneumoniae (MIC: 200 μg/ml), S. aureus (MIC: 400 μg/ml) and S. pyogenes (MIC: 200 μg/ml). The phytochemical investigation of the dichloromethane extract afforded plumbagin, canaliculatin, ismailin, betulinic acid and 4-hydroxy-5-methyl-coumarin as the main constituents. Plumbagin and ismailin were found to be responsible for the main biological activities observed. CONCLUSIONS These results may provide a rational support for the traditional use of Diospyros bipindensis stem bark in the treatment of respiratory disorders, since the anti-inflammatory, antimicrobial and antioxidant compounds isolated from the dichloromethane extract were also present in the traditional water extract.
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Affiliation(s)
- I Cesari
- Department of Drug Sciences, University of Pavia, Pavia, Italy
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Milaeva ER, Shpakovsky DB, Gracheva YA, Orlova SI, Maduar VV, Tarasevich BN, Meleshonkova NN, Dubova LG, Shevtsova EF. Metal complexes with functionalised 2,2′-dipicolylamine ligand containing an antioxidant 2,6-di-tert-butylphenol moiety: synthesis and biological studies. Dalton Trans 2013; 42:6817-28. [DOI: 10.1039/c3dt50160d] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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