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Arulmozhi S, Sasikumar G, Subramani A, Mohammed MKA, Ali SJA, Ponnusamy S, Jabir MS, Elgorban AM, Zhang W, Natarajan H. Chemical, Pharmacological, and Theoretical Aspects of Some Transition Metal(II) Complexes Derived from Pyrrole Azine Schiff Base. ACS OMEGA 2023; 8:34458-34470. [PMID: 37779929 PMCID: PMC10536097 DOI: 10.1021/acsomega.3c02860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 08/10/2023] [Indexed: 10/03/2023]
Abstract
Some new transition metal complexes were prepared by reacting metal(II) salts with Schiff base azines, which were prepared via condensation of 5-(diethylamino) salicylaldehyde and hydrazine with pyrrole-2-carbaldehyde. Their structures were confirmed based on CHN, UV-visible, FT-IR, and EPR measurements. The complexes were also assessed for their antibacterial, antioxidant, and anticancer properties. Some of these chemicals were said to be extraordinarily effective in this respect. The antibacterial activities of the complexes in vitro demonstrated their potential, although the [Cu(L)(bpy] complex was suggested to exhibit moderate activity against pathogens compared to all other in this series. The cytotoxic activity of the prepared analogues showed better cell viability compared with standard cisplatin. Moreover, there is a good agreement between the experimental and theoretical findings from docking and theoretical investigations done using DFT at the B3LYP level.
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Affiliation(s)
- Sivan Arulmozhi
- Post-Graduate
and Research Department of Chemistry, the
New College (Autonomous), Chennai 600014, India
| | | | - Annadurai Subramani
- Department
of Biochemistry, Dwaraka Doss Goverdhan
Doss Vaishnav College, Chennai 600106, Tamil Nadu, India
| | | | - Syed J. Askar Ali
- Post-Graduate
and Research Department of Chemistry, the
New College (Autonomous), Chennai 600014, India
| | - Sasikumar Ponnusamy
- Department
of Physics, Saveetha School of Engineering,
SIMATS, Chennai 602 701, India
| | - Majid S. Jabir
- Department
of Applied Sciences, University of Technology-Iraq, 10011 Baghdad, Iraq
| | - Abdallah M. Elgorban
- Department
of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia
| | - Wanli Zhang
- School
of Food Science and Engineering, Hainan
University, Haikou 570228, PR China
| | - Hema Natarajan
- Department
of Physics, Jerusalem College of Engineering, Narayanapuram, Pallikaranai, Chennai 600100, India
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Synthesis of a Nanoparticle of Selenious Acid Acyl Diaquercetin for Skin Care Products. ChemistrySelect 2022. [DOI: 10.1002/slct.202203493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Rathod S, Arya S, Kanike S, Shah SA, Bahadur P, Tiwari S. Advances on nanoformulation approaches for delivering plant-derived antioxidants: A case of quercetin. Int J Pharm 2022; 625:122093. [PMID: 35952801 DOI: 10.1016/j.ijpharm.2022.122093] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/21/2022] [Accepted: 08/04/2022] [Indexed: 10/15/2022]
Abstract
Oxidative stress has been implicated in tumorigenic, cardiovascular, neuro-, and age-related degenerative changes. Antioxidants minimize the oxidative damage through neutralization of reactive oxygen species (ROS) and other causative agents. Ever since the emergence of COVID-19, plant-derived antioxidants have received enormous attention, particularly in the Indian subcontinent. Quercetin (QCT), a bio-flavonoid, exists in the glycosylated form in fruits, berries and vegetables. The antioxidant potential of QCT analogs relates to the number of free hydroxyl groups in their structure. Despite presence of these groups, QCT exhibits substantial hydrophobicity. Formulation scientists have tested nanotechnology-based approaches for its improved solubilization and delivery to the intended site of action. By the virtue of its hydrophobicity, QCT gets encapsulated in nanocarriers carrying hydrophobic domains. Apart from passive accumulation, active uptake of such formulations into the target cells can be facilitated through well-studied functionalization strategies. In this review, we have discussed the approaches of improving solubilization and bioavailability of QCT with the use of nanoformulations.
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Affiliation(s)
- Sachin Rathod
- UKA Tarsadia University, Maliba Pharmacy College, Gopal-Vidyanagar Campus, Surat 394350, India
| | - Shristi Arya
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Lucknow 226002, India
| | - Shirisha Kanike
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Lucknow 226002, India
| | - Shailesh A Shah
- UKA Tarsadia University, Maliba Pharmacy College, Gopal-Vidyanagar Campus, Surat 394350, India
| | - Pratap Bahadur
- Department of Chemistry, Veer Narmad South Gujarat University, Surat 395007, India
| | - Sanjay Tiwari
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Lucknow 226002, India.
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Daravath S, Rambabu A, Ganji N, Ramesh G, Anantha Lakshmi P, Shivaraj. Spectroscopic, quantum chemical calculations, antioxidant, anticancer, antimicrobial, DNA binding and photo physical properties of bioactive Cu(II) complexes obtained from trifluoromethoxy aniline Schiff bases. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131601] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Saroya S, Asija S, Kumar N, Deswal Y, devi J. Organotin (IV) complexes derived from tridentate Schiff base ligands: Synthesis, spectroscopic analysis, antimicrobial and antioxidant activity. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100379] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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da Silva GL, Campideli MB, Ferrari ABS, Mannochio-Russo H, Fraige K, Dametto AC, Bolzani VDS, Zeraik ML. In vitro antiglycation and antioxidant properties of Eugenia pyriformis leaves and fruits. Nat Prod Res 2021; 36:4730-4734. [PMID: 34809508 DOI: 10.1080/14786419.2021.2005049] [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: 10/19/2022]
Abstract
Eight phenolic compounds were isolated from Eugenia pyriformis leaves fraction by semi-preparative HPLC and characterized by Nuclear Magnetic Resonance (NMR) and mass spectrometry (ESI-MS). Five compounds were isolated and identified for the first time in E. pyriformis species, while this is the first report of the accumulation of isoquercitrin, quercitrin, and the aglycone quercetin in its leaves. E. pyriformis leaves and fruits extracts, as well as the compounds isolated from the leaves most active fraction, were evaluated for their antiglycation and antioxidant activities. The mixture of myricetin-3-O-(2″-O-galloyl)-α-L-rhamnoside and myricetin-3-O-(4″-O-galloyl)-α-L-rhamnoside showed the highest antiglycation activity. These results suggest that this species is a promising source of bioactive compounds. Further studies to investigate the inhibition of the glycation process in vivo are necessary to evaluate its use in the treatment and/or prevention of advanced glycation end-products (AGEs)-associated diseases.
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Affiliation(s)
- Giselle Lopes da Silva
- Laboratory of Phytochemistry and Biomolecules (LabFitoBio), Department of Chemistry, State University of Londrina (UEL), Londrina, Brazil
| | - Mariana Bordin Campideli
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Anna Beatriz Sabino Ferrari
- Laboratory of Phytochemistry and Biomolecules (LabFitoBio), Department of Chemistry, State University of Londrina (UEL), Londrina, Brazil
| | - Helena Mannochio-Russo
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Karina Fraige
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, Brazil
| | | | - Vanderlan da Silva Bolzani
- Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products (NuBBE), Department of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Maria Luiza Zeraik
- Laboratory of Phytochemistry and Biomolecules (LabFitoBio), Department of Chemistry, State University of Londrina (UEL), Londrina, Brazil
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Synthesis and Biological Evaluation of Novel Zn(II) and Cd(II) Schiff Base Complexes as Antimicrobial, Antifungal, and Antioxidant Agents. Bioinorg Chem Appl 2020. [DOI: 10.1155/2020/8866382] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
(E)-N,N-Dimethyl-2-((E-1-(2-(p-tolyl)hydrazono)propan-2-ylidene)hydrazine-1-carbothioamide (DMPTHP) and their Zn(II) and Cd(II) complexes have been synthesized and characterized. Different tools of analysis such as elemental analyses, IR, mass spectra, and 1H-NMR measurements were used to elucidate the structure of the synthesized compounds. According to these spectral results, the DMPTHP ligand behaved as a mononegatively charged tridentate anion. Modeling and docking studies were investigated and discussed. Novel Schiff base (DMPTHP) ligand protonation constants and their formation constants with Cd(II) and Zn(II) ions were measured in 50% DMSO solution at 15°C, 25°C, and 35°C at I = 0.1 mol·dm−3 NaNO3. The solution speciation of different species was measured in accordance with pH. Calculation and discussion of the thermodynamic parameters were achieved. Both log K1 and –ΔH1, for M(II)-thiosemicarbazone complexes were found to be somewhat larger than log K2 and –ΔH2, demonstrating a shift in the dentate character of DMPTHP from tridentate in 1 : 1 chelates to bidentate in 1 : 2; M : L chelates and steric hindrance were generated by addition of the 2nd molecule. The compounds prepared have significant activity as antioxidants, similar to ascorbic acid. It is hoped that the results will be beneficial to antimicrobial agent chemistry. The formed compounds acted as a potent antibacterial agent. Molecular docking studies were investigated and have proved that DMPTHP as antibacterial agents act on highly resistant strains of E. coli and also as an anticancer agent.
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Choudhary VK, Bhatt AK, Sharma N. Theoretical and spectroscopic evidence on a new triphenyltin(IV) 3,5-dinitrosalicylhydroxamate complex: synthesis, structural characterization, and biological screening. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1747055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | | | - Neeraj Sharma
- Department of Chemistry, Himachal Pradesh University, Shimla, India
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Choudhary VK, Bhatt AK, Dash D, Sharma N. Synthesis, characterization, thermal, computational and biological activity studies of new potential bioactive diorganotin (IV) nitrosubstitutedhydroxamates‐A comparative study. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5360] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Arvind Kumar Bhatt
- Department of BiotechnologyHimachal Pradesh University Summer Hill Shimla‐5 India
| | - Dibyajit Dash
- Department of ChemistrySant Longowal Institute of Engineering & Technology Longowal Sangrur Punjab‐148106 India
| | - Neeraj Sharma
- Department of ChemistryHimachal Pradesh University Summer Hill Shimla India
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Daravath S, Rambabu A, Vamsikrishna N, Ganji N, Raj S. Synthesis, structural characterization, antioxidant, antimicrobial, DNA incision evaluation and binding investigation studies on copper(II) and cobalt(II) complexes of benzothiazole cored Schiff bases. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1634263] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sreenu Daravath
- Department of Chemistry, Osmania University, Hyderabad, India
| | - Aveli Rambabu
- Department of Chemistry, Osmania University, Hyderabad, India
| | | | - Nirmala Ganji
- Department of Chemistry, Osmania University, Hyderabad, India
| | - Shiva Raj
- Department of Chemistry, Osmania University, Hyderabad, India
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Cruz dos Santos S, Osti Silva N, dos Santos Espinelli JB, Germani Marinho MA, Vieira Borges Z, Bruzamarello Caon Branco N, Faita FL, Meira Soares B, Horn AP, Parize AL, Rodrigues de Lima V. Molecular interactions and physico-chemical characterization of quercetin-loaded magnetoliposomes. Chem Phys Lipids 2019; 218:22-33. [DOI: 10.1016/j.chemphyslip.2018.11.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 10/30/2018] [Accepted: 11/30/2018] [Indexed: 01/02/2023]
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12
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Crystal structure, DNA binding, cleavage, antioxidant and antibacterial studies of Cu(II), Ni(II) and Co(III) complexes with 2-((furan-2-yl)methylimino)methyl)-6-ethoxyphenol Schiff base. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bioactivity In Vitro of Quercetin Glycoside Obtained in Beauveria bassiana Culture and Its Interaction with Liposome Membranes. Molecules 2017; 22:molecules22091520. [PMID: 28891998 PMCID: PMC6151435 DOI: 10.3390/molecules22091520] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 09/10/2017] [Accepted: 09/10/2017] [Indexed: 12/26/2022] Open
Abstract
Quercetin (Q) was used as substrate for regioselective glycosylation at the C-7 position catalyzed by Beauveria bassiana AM278 strain. As a result the glycoside quercetin 7-O-β-d-(4″-O-methyl)glucopyranoside (Q 7-MeGlu) was formed. The goal of the studies was to determine the anti-oxidative (liposome membrane protection against free radicals IC50Q 7-MeGlu = 5.47 and IC50Q = 4.49 µM) and anti-inflammatory (COX-1 and COX-2 enzymes activity inhibition) properties of Q 7-MeGlu as compared to Q. Every attempt was made to clarify the antioxidant activity of these molecules, which are able to interact with egg phosphatidylcholine liposomes, using a fluorometric method (by applying the probes MC540, TMA-DPH and DPH). The results indicated that Q 7-MeGlu and Q are responsible for increasing the packing order, mainly in the hydrophilic but also in hydrophobic regions of the membrane (Q > Q 7-MeGlu). These observations, confirmed by a 1H-NMR method, are key to understanding their antioxidant activity which is probably caused by the stabilizing effect on the lipid membranes. The results showed that Q 7-MeGlu and Q have ability to quench the human serum albumin (HSA) intrinsic fluorescence through a static quenching mechanism. The results of thermodynamic parameters indicated that the process of formation complexes between studied molecules and HSA was spontaneous and caused through Van der Waals interactions and hydrogen bonding.
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Strugała P, Cyboran-Mikołajczyk S, Dudra A, Mizgier P, Kucharska AZ, Olejniczak T, Gabrielska J. Biological Activity of Japanese Quince Extract and Its Interactions with Lipids, Erythrocyte Membrane, and Human Albumin. J Membr Biol 2016; 249:393-410. [PMID: 26861057 PMCID: PMC4875069 DOI: 10.1007/s00232-016-9877-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 01/27/2016] [Indexed: 11/29/2022]
Abstract
The aim of the study was to determine in vitro biological activity of fruit ethanol extract from Chaenomeles speciosa (Sweet) Nakai (Japanese quince, JQ) and its important constituents (−)-epicatechin (EC) and chlorogenic acid (CA). The study also investigated the structural changes in phosphatidylcholine (PC) liposomes, dipalmitoylphosphatidylcholine liposomes, and erythrocyte membranes (RBC) induced by the extract. It was found that the extract effectively inhibits oxidation of RBC, induced by 2,2′-azobis (2-amidinopropane) dihydrochloride (AAPH), and PC liposomes, induced by UVB radiation and AAPH. Furthermore, JQ extract to a significant degree inhibited the activity of the enzymes COX-1 and COX-2, involved in inflammatory reactions. The extract has more than 2 times greater activity in relation to COX-2 than COX-1 (selectivity ratio 0.48). JQ extract stimulated growth of the beneficial intestinal bacteria Lactobacillus casei and Lactobacillus plantarum. In the fluorimetric method by means of the probes Laurdan, DPH and TMA-DPH, and 1H-NMR, we examined the structural changes induced by JQ and its EC and CA components. The results show that JQ and its components induce a considerable increase of the packing order of the polar heads of lipids with a slight decrease in mobility of the acyl chains. Lipid membrane rigidification could hinder the diffusion of free radicals, resulting in inhibition of oxidative damage induced by physicochemical agents. JQ extract has the ability to quench the intrinsic fluorescence of human serum albumin through static quenching. This report thus could be of huge significance in the food industry, pharmacology, and clinical medicine.
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Affiliation(s)
- Paulina Strugała
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375, Wrocław, Poland.
| | - Sylwia Cyboran-Mikołajczyk
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375, Wrocław, Poland
| | - Anna Dudra
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375, Wrocław, Poland
| | - Paulina Mizgier
- Department of Fruit, Vegetable and Cereal Technology, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37/41, 51-630, Wrocław, Poland
| | - Alicja Z Kucharska
- Department of Fruit, Vegetable and Cereal Technology, Wrocław University of Environmental and Life Sciences, Chełmońskiego 37/41, 51-630, Wrocław, Poland
| | - Teresa Olejniczak
- Department of Chemistry, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375, Wrocław, Poland
| | - Janina Gabrielska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, C.K. Norwida 25, 50-375, Wrocław, Poland
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Strugała P, Gładkowski W, Kucharska AZ, Sokół-Łętowska A, Gabrielska J. Antioxidant activity and anti-inflammatory effect of fruit extracts from blackcurrant, chokeberry, hawthorn, and rosehip, and their mixture with linseed oil on a model lipid membrane. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201500001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Paulina Strugała
- Department of Physics and Biophysics; Wrocław University of Environmental and Life Sciences; Wrocław Poland
| | - Witold Gładkowski
- Department of Chemistry; Wrocław University of Environmental and Life Sciences; Wrocław Poland
| | - Alicja Z. Kucharska
- Department of Fruit, Vegetable, and Cereal Technology; Wrocław University of Environmental and Life Sciences; Wrocław Poland
| | - Anna Sokół-Łętowska
- Department of Fruit, Vegetable, and Cereal Technology; Wrocław University of Environmental and Life Sciences; Wrocław Poland
| | - Janina Gabrielska
- Department of Physics and Biophysics; Wrocław University of Environmental and Life Sciences; Wrocław Poland
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Synthesis, characterization, X-ray structures, and biological activity of some metal complexes of the Schiff base 2,2′-(((azanediylbis(propane-3,1-diyl))bis(azanylylidene))bis(methanylylidene))diphenol. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.09.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Antioxidant and biochemical activities of mixed ligand complexes. Appl Biochem Biotechnol 2014; 172:867-90. [PMID: 24122706 DOI: 10.1007/s12010-013-0557-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Accepted: 09/26/2013] [Indexed: 10/26/2022]
Abstract
Novel 4-aminoantipyrine based mixed ligand metal complexes with the Schiff bases ofL1(L1-4(furanylmethyleneamino)-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one and L2/ L3/ L4are 2-(2-chlorobenzylideneamino)phenol, 2-(3-chlorobenzylideneamino)phenol, 2-(4-chlorobenzylideneamino)phenol were synthesized. The structures of the mixed ligand complexes were established by analytical and spectral techniques. They were screened for in vitro antimicrobial activity against bacteria and fungi by disc diffusion method. The interaction of metal complexes with CT-DNA was investigated by UV–vis, cyclic voltammetry, viscosity and thermal denaturation studies.DNA interaction studies suggest that metal complex binds to calf thymus DNA (CT-DNA) through intercalation mode. Superoxide dismutase activity of these complexes has also been studied. The free ligands and their metal complexes have been tested for in vitro antioxidant activity by the reduction of 1,1-diphenyl-2-picryl hydrazyl (DPPH).The antioxidant activities of the complexes were studied and compared with the activity of ascorbic acid. Cu(II) complex showed superior antioxidant activity than other complexes. The solvatochromic behaviour of complexes was also performed in various solvents.
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Cytotoxicity, antioxidant and glutathione S-transferase inhibitory activity of palladium(II) chloride complexes bearing nucleobase ligands. TRANSIT METAL CHEM 2014. [DOI: 10.1007/s11243-014-9848-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Ramírez-Jiménez A, Luna-García R, Cortés-Lozada A, Hernández S, Ramírez-Apan T, Nieto-Camacho A, Gómez E. Dinuclear heptacoordinate dibutyltin (IV) complexes derived from Schiff bases and dicarboxylates: Synthesis, cytotoxicity, and antioxidant activity. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.03.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Gabrielska J, Sekowski S, Zukowska I, Przestalski S, Zamaraeva M. The modified action of triphenyllead chloride on UVB-induced effects in albumin and lipids. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2013; 89:36-42. [PMID: 23260240 DOI: 10.1016/j.ecoenv.2012.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 11/04/2012] [Accepted: 11/05/2012] [Indexed: 06/01/2023]
Abstract
Previously we have shown a toxic effect of the organometallic compound triphenyllead (TPhPb) on cells. In the present study we evaluated the destructive effect of TPhPb on model systems--serum albumin and liposome membranes--alone and under UVB irradiation. UVB irradiation of bovine serum albumin results in protein S-S bond reduction, free SH- and CO- group formation and decrease in fluorescence intensity of tryptophans. Triphenyllead chloride alone and under UVB irradiation did not induce protein oxidation, measured as formation of carbonyl groups, in serum albumin; however, it decreased the content of SH- groups in both cases (alone and under UVB radiation) in a dose-dependent manner. It was found that triphenyllead chloride alone did not induce lipid peroxidation of liposomes but increased their fluidity. However, under UVB irradiation TPhPb dramatically enhances the pro-oxidant action of UVB in a manner dependent on concentration and intensity of radiation, and these effects were suppressed by Trolox. These results suggest that the toxicity of TPhPb under UVB irradiation is due to formation of radical forms of the compound and its disordered effects on the membrane structure.
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Affiliation(s)
- Janina Gabrielska
- Wroclaw University of Environmental and Life Sciences, CK Norwida 25/27, Wroclaw, Poland
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Pawlikowska-Pawlęga B, Misiak LE, Zarzyka B, Paduch R, Gawron A, Gruszecki WI. FTIR, (1)H NMR and EPR spectroscopy studies on the interaction of flavone apigenin with dipalmitoylphosphatidylcholine liposomes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2012; 1828:518-27. [PMID: 23088916 DOI: 10.1016/j.bbamem.2012.10.013] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 09/27/2012] [Accepted: 10/15/2012] [Indexed: 11/25/2022]
Abstract
Apigenin (5,7,4'-trihydroxyflavone) is a cancer chemopreventive agent and a member of the family of plant flavonoids. Apigenin interaction with liposomes formed with dipalmitoylphosphatidylcholine (DPPC) was investigated by means of FTIR spectroscopy, (1)H NMR and EPR techniques. Fluorescent microscopy and electron microscopy were applied to study the apigenin effects on colon myofibroblasts and human skin fibroblasts. The strong rigidifying effect of apigenin with respect to polar head groups was concluded on the basis of the action of the flavone on partition coefficient of Tempo spin label between the water and lipid phases. The ordering effect was also found in hydrophobic region at the depth monitored by 5-SASL and 16-SASL spin labels. The inclusion of apigenin to the membrane restricted the motional freedom of polar head groups lowering penetration of Pr(3+) ions to the membranes. The (1)H NMR technique supported also the restriction of motional freedom of the membrane in the hydrophobic region, especially in the zone of CH(2) groups of alkyl chains. FTIR analysis showed that apigenin incorporates into DPPC liposomes via hydrogen bonding between its own hydroxyl groups and lipid polar head groups in the C-O-P-O-C segment. It is also very likely that hydroxyl groups of apigenin link with polar groups of DPPC by water bridges. Electron and fluorescence microscopic observations revealed changes in the internal membrane organization of the examined cells. In conclusion, the changes of the structural and dynamic properties of membranes can be crucial for processes involving tumor suppression signal transduction pathways and cell cycle regulation.
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Affiliation(s)
- Bożena Pawlikowska-Pawlęga
- Department of Comparative Anatomy and Anthropology, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland.
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Pawlikowska-Pawlęga B, Misiak LE, Zarzyka B, Paduch R, Gawron A, Gruszecki WI. Localization and interaction of genistein with model membranes formed with dipalmitoylphosphatidylcholine (DPPC). BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2012; 1818:1785-93. [DOI: 10.1016/j.bbamem.2012.03.020] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 03/19/2012] [Accepted: 03/30/2012] [Indexed: 11/24/2022]
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Antifungal and antioxidant activities of pyrrolidone thiosemicarbazone complexes. Bioinorg Chem Appl 2012; 2012:795812. [PMID: 22400016 PMCID: PMC3287026 DOI: 10.1155/2012/795812] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 10/03/2011] [Accepted: 10/18/2011] [Indexed: 12/25/2022] Open
Abstract
Metal complexes of (Z)-2-(pyrrolidin-2-ylidene)hydrazinecarbothioamide (L) with Cu(II), Co(II), and Ni(II) chlorides were tested against selected types of fungi and were found to have significant antifungal activities. The free-radical-scavenging ability of the metal complexes was determined by their interaction with the stable free radical 2,2''-diphenyl-1-picrylhydrazyl, and all the compounds showed encouraging antioxidant activities. DFT calculations of the Cu complex were performed using molecular structures with optimized geometries. Molecular orbital calculations provide a detailed description of the orbitals, including spatial characteristics, nodal patterns, and the contributions of individual atoms.
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Homobimetallic complexes of ligand having O- and S-donor sites with same and different di- and trialkyl/aryltin(IV) moiety: their synthesis, spectral characterization and biological activities. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2012. [DOI: 10.1007/s13738-011-0025-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Al-Amiery AA. Antimicrobial and antioxidant activities of new metal complexes derived from (E)-3-((5-phenyl-1,3,4-oxadiazol-2-ylimino)methyl)naphthalen-2-ol. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9880-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Kadhum AAH, Mohamad AB, Al-Amiery AA, Takriff MS. Antimicrobial and antioxidant activities of new metal complexes derived from 3-aminocoumarin. Molecules 2011; 16:6969-84. [PMID: 21844844 PMCID: PMC6264160 DOI: 10.3390/molecules16086969] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 07/14/2011] [Accepted: 07/15/2011] [Indexed: 11/16/2022] Open
Abstract
3-Aminocoumarin (L) has been synthesized and used as a ligand for the formation of Cr(III), Ni(II), and Cu(II) complexes. The chemical structures were characterized using different spectroscopic methods. The elemental analyses revealed that the complexes where M=Ni(II) and Cu(II) have the general formulae [ML(2)Cl(2)], while the Cr(III) complex has the formula [CrL(2)Cl(2)]Cl. The molar conductance data reveal that all the metal chelates, except the Cr(III) one, are non-electrolytes. From the magnetic and UV-Visible spectra, it is found that these complexes have octahedral structures. The stability for the prepared complexes was studied theoretically using Density Function Theory. The total energy for the complexes was calculated and it was shown that the copper complex is the most stable one. Complexes were tested against selected types of microbial organisms and showed significant activities. The free radical scavenging activity of metal complexes have been determined by measuring their interaction with the stable free radical DPPH and all the compounds have shown encouraging antioxidant activities.
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Affiliation(s)
- Abdul Amir H. Kadhum
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia
| | - Abu Bakar Mohamad
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia
| | - Ahmed A. Al-Amiery
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia
- Biotechnology Division, Applied Science Department, University of Technology, Baghdad 10066, Iraq
- Author to whom the correspondence should be addressed; or
| | - Mohd S. Takriff
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor 43600, Malaysia
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Comparative antioxidant capacities of quercetin and butylated hydroxyanisole in cholesterol-modified erythrocytes damaged by tert-butylhydroperoxide. Food Chem Toxicol 2011; 49:2212-21. [PMID: 21712064 DOI: 10.1016/j.fct.2011.06.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 05/24/2011] [Accepted: 06/06/2011] [Indexed: 11/23/2022]
Abstract
Phenolic compounds are potent antioxidants that scavenge reactive oxygen species (ROS), protecting the cells against oxidative damage. Their antioxidant capacities are governed by their structural features and the nature and physical state of the cell membrane. Our study compares the protective effects of butylated hydroxyanisole (BHA) and quercetin against the cellular injury induced by oxidative stress, and the influence of membrane cholesterol contents in their antioxidant capacities, analyzing the structural changes and cellular stability of native and cholesterol-modified erythrocytes exposed to tert-butylhydroperoxide in presence of each antioxidant. The data provide clear evidence that BHA affords better protection than quercetin against ROS generation, lipid peroxidation and lipid and GSH losses in oxidized erythrocytes. However, cellular integrity and stability are better protected by quercetin owing to the hemolytic effect of BHA. Both antioxidants suppress the alterations in membrane fluidity with similar efficiency, reducing methemoglobin formation in all oxidized erythrocytes. Membrane cholesterol depletion decreases the protection against the oxidative damage provided by both antioxidants. This lower preservation may be due to low antioxidant contents, a lower antioxidant capacity, or even to an increased oxidative damage in this membrane type as a consequence of environment modifications after cholesterol depletion.
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Shahidi F, Zhong Y. Revisiting the polar paradox theory: a critical overview. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:3499-3504. [PMID: 21375307 DOI: 10.1021/jf104750m] [Citation(s) in RCA: 209] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The polar paradox is a theory that illustrates the paradoxical behavior of antioxidants in different media and rationalizes the fact that polar antioxidants are more effective in less polar media, such as bulk oils, while nonpolar antioxidants are more effective in relatively more polar media, such as oil-in-water emulsions or liposomes. For 2 decades since it was proposed, the theory has been used to interpret results in antioxidant efficiency studies. However, more recently, new evidence from more comprehensive assessments has emerged that contradicts the polar paradox theory, hence necessitating its re-evaluation. More complex factors in addition to polarity must be taken into account to explain antioxidant efficacy.
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Affiliation(s)
- Fereidoon Shahidi
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada.
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Corona-Bustamante A, Viveros-Paredes JM, Flores-Parra A, Peraza-Campos AL, Martínez-Martínez FJ, Sumaya-Martínez MT, Ramos-Organillo Á. Antioxidant activity of butyl- and phenylstannoxanes derived from 2-, 3- and 4-pyridinecarboxylic acids. Molecules 2010; 15:5445-59. [PMID: 20714307 PMCID: PMC6257800 DOI: 10.3390/molecules15085445] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 05/31/2010] [Accepted: 07/15/2010] [Indexed: 11/22/2022] Open
Abstract
In vitro antioxidant activity for 12 stannoxanes derived from Ph3SnCl (compounds 1-3), Ph2SnCl2 (compounds 4-6), Bu3SnCl (compounds 7-9), and Bu2SnCl2 (compounds 10-12), was assayed qualitatively by the chromatographic profile with 1,1-diphenyl-2-picrylhydrazil (DPPH) method and by two quantitative methods: the DPPH radical scavenging activity and Ferric-Reducing Antioxidant Power (FRAP) assays. The results were compared with those obtained with the starting materials 2-pyridine- carboxylic acid (I), 3-pyridinecarboxylic acid (II) and 4-pyridinecarboxylic acid (III), as well as with standard compounds, such as vitamin C and vitamin E, respectively. The in vitro antiradical activity with DPPH of diphenyltin derivative 5 showed a very similar behavior to vitamin C at a 20 μg/mL concentration, whereas according to the FRAP method, compound 8 was better. This difference is due to the mechanism of the antioxidant process. The Structure-Activity Relationships (SAR) for both methods is also reported.
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Affiliation(s)
- Alicia Corona-Bustamante
- Facultad de Ciencias Químicas, Universidad de Colima, kilómetro 9 carretera Colima, Coquimatlán, Col. Mexico. C.P. 28400, Mexico
| | - Juan Manuel Viveros-Paredes
- Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Laboratorio de Inmunofarmacología, Blvd. Marcelino García Barragán No. 1421, esq. Calzada Olímpica, C.P. 4430, Guadalajara, Jal., Mexico
| | - Angelina Flores-Parra
- Departamento de Química, Centro de Investigación y de Estudios Avanzados-IPN. Apartado, Postal 14-740. Mexico 07000, D. F., Mexico
| | - Ana Lilia Peraza-Campos
- Facultad de Ciencias Químicas, Universidad de Colima, kilómetro 9 carretera Colima, Coquimatlán, Col. Mexico. C.P. 28400, Mexico
| | - Francisco J. Martínez-Martínez
- Facultad de Ciencias Químicas, Universidad de Colima, kilómetro 9 carretera Colima, Coquimatlán, Col. Mexico. C.P. 28400, Mexico
| | - María Teresa Sumaya-Martínez
- Unidad Académica de Agricultura, Universidad Autónoma de Nayarit, Cd. de la Cultura "Amado Nervo", Boulevard Tepic-Xalisco s/n. C.P. 63190. Tepic, Nayarit, Mexico
| | - Ángel Ramos-Organillo
- Facultad de Ciencias Químicas, Universidad de Colima, kilómetro 9 carretera Colima, Coquimatlán, Col. Mexico. C.P. 28400, Mexico
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +52 312 3161163
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