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Muhammad S, Lai CH, Al-Sehemi AG, Alshahrani T, Iqbal J, Ayub K. Exploring the twisted molecular configurations for tuning their optical and nonlinear optical response properties: A quantum chemical approach. J Mol Graph Model 2021; 102:107766. [DOI: 10.1016/j.jmgm.2020.107766] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 09/14/2020] [Accepted: 09/28/2020] [Indexed: 01/17/2023]
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Tanış E, Çankaya N, Yalçın S. Synthesis, Characterization, Computation of Global Reactivity Descriptors and Antiproliferative Activity of N-(4-nitrophenyl)Acrylamide. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2019. [DOI: 10.1134/s1990793119010147] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Moghanian H, Mobinikhaledi A, Monjezi R. Synthesis, spectroscopy (vibrational, NMR and UV–vis) studies, HOMO–LUMO and NBO analysis of 8-formyl-7-hydroxy-4-methylcoumarin by ab initio calculations. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.08.043] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gacche RN, Jadhav SG. Antioxidant Activities and Cytotoxicity of Selected Coumarin Derivatives: Preliminary Results of a Structure–Activity Relationship Study Using Computational Tools. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.jecm.2012.04.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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KURATA S, MORISHITA K, KAWASE T, UMEMOTO K. Cytotoxic effects of acrylic acid, methacrylic acid, their corresponding saturated carboxylic acids, HEMA, and hydroquinone on fibroblasts derived from human pulp. Dent Mater J 2012; 31:219-25. [DOI: 10.4012/dmj.2011-085] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Shigeaki KURATA
- Department of Biomaterials and Devices, Kanagawa Dental College
| | | | - Toshio KAWASE
- Department of Dental Biomaterials and Bioengineering, Kanagawa Dental College
| | - Kozo UMEMOTO
- Department of Biomaterials and Devices, Kanagawa Dental College
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Waki T, Nakanishi I, Matsumoto KI, Kitajima J, Chikuma T, Kobayashi S. Key Role of Chemical Hardness to Compare 2,2-Diphenyl-1-picrylhydrazyl Radical Scavenging Power of Flavone and Flavonol O-Glycoside and C-Glycoside Derivatives. Chem Pharm Bull (Tokyo) 2012; 60:37-44. [DOI: 10.1248/cpb.60.37] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Tsukasa Waki
- Division of Analytical Chemistry of Medicines, Showa Pharmaceutical University
| | - Ikuo Nakanishi
- Radio-Redox Response Research Team, Advanced Particle Radiation Biology Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences
| | - Ken-ichiro Matsumoto
- Radio-Redox Response Research Team, Advanced Particle Radiation Biology Research Program, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences
| | - Junichi Kitajima
- Division of Kampo Medicine and Pharmacognosy, Showa Pharmaceutical University
| | - Toshiyuki Chikuma
- Division of Analytical Chemistry of Medicines, Showa Pharmaceutical University
| | - Shigeki Kobayashi
- Division of Analytical Chemistry of Medicines, Showa Pharmaceutical University
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Kobayashi S, Waki T, Nakanishi I, Matsumoto KI, Anzai K. Potent 2,2-diphenyl-1-picrylhydrazyl radical-scavenging activity of novel antioxidants, double-stranded tyrosine residues conjugating pyrocatechol. Chem Pharm Bull (Tokyo) 2011; 58:1442-6. [PMID: 21048334 DOI: 10.1248/cpb.58.1442] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
New potent antioxidants conjugating the catechol (=pyrocatechol; pyrCat) group to two N-termini of modified double-stranded tyrosine residues were synthesized and showed radical scavenging activity with 2,2-diphenyl-1-picrylhydrazyl radical (DPPH radical, DPPH˙) as a free radical model, second-order rate constants for the DPPH˙ scavenging reaction, and the results from electron spin resonance (ESR) studies. It was found that the tyrosine (Tyr) residue and pyrCat containing new antioxidants developed in the study have about 3-20 times more potent antioxidative activity than Trolox, pyrCat, and L-ascorbic acid (VC). In order to elucidate the relationship between antioxidant activity and the molecular orbital states, and to design potent antioxidants we present an interesting approach using an absolute hardness (η)-absolute electronegativity (χ) diagram based on chemical hardness. It was shown that quantum chemicals were required to develop potent antioxidants.
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Zhao YY, Tao FM, Zeng EY. Theoretical study of the quantitative structure-activity relationships for the toxicity of dibenzo-p-dioxins. CHEMOSPHERE 2008; 73:86-91. [PMID: 18589475 DOI: 10.1016/j.chemosphere.2008.05.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2008] [Revised: 04/02/2008] [Accepted: 05/01/2008] [Indexed: 05/26/2023]
Abstract
Density functional theory calculations of polychlorinated dibenzo-p-dioxins (PCDDs) were carried out to obtain the electronic descriptors, polarizabilities, and traceless quadrupole moments of 76 PCDD congeners. No simple relationships were found for the electronic descriptors with the relevant aryl hydrocarbon receptor (AhR) binding affinities of PCDDs, which suggests that they alone may not be sufficient to explain the variation in toxicity. However, quantitative structure-activity relationships (QSARs) were developed with the polarizabilities and traceless quadrupole moments, explaining about 74% and 59% of variation in AhR binding affinities of PCDDs, respectively. To explain the nature of toxic interaction, a mathematical model based on the ligand-receptor binding and solute-solvent interaction was presented, and then a multiple regression analysis of all the above parameters was performed to evaluate the contributions of the parameters to the bonding affinities. Other data for PCDFs found in the literature were also included in the regression analysis to minimize data over-fitting. The results suggest that dispersion and electrostatic interactions are equally important for the interaction of PCDD/Fs with the AhR.
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Affiliation(s)
- Ya-Ying Zhao
- State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
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Kobayashi S, Shinohara H, Tabata K, Yamamoto N, Miyai A. Stereo structure-controlled and electronic structure-controlled estrogen-like chemicals to design and develop non-estrogenic bisphenol A analogs based on chemical hardness concept. Chem Pharm Bull (Tokyo) 2007; 54:1633-8. [PMID: 17139095 DOI: 10.1248/cpb.54.1633] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this study was to elucidate the structure-activity relationship of bisphenol A (BPA) analogs using absolute hardness (eta) and absolute electronegativity (chi) (chemical hardness) and to design a non-estrogen active BPA. To determine the structure-activity relationships of BPA analogs, we investigated MCF-7 cell proliferation stimulated by BPA analogs and an eta-chi diagram based on the electronic structure of the BPA analogs. The results show that the actions of the environmental hormones BPA analogs have two chemical properties; (i) 'stereo structure-controlled' and (ii) 'electronic structure-controlled' estrogen-like chemical activities. Therefore, we designed and synthesized BPA analogs which do not possess these 2 characteristics, ((i) and (ii)), and demonstrate the non-estrogen activity of the analog.
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Affiliation(s)
- Shigeki Kobayashi
- Department of Analytical Chemistry of Medicines, Showa Pharmaceutical University, Tokyo, Japan.
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Affiliation(s)
- P Geerlings
- Eenheid Algemene Chemie, Faculteit Wetenschappen, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.
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ARULMOZHIRAJA SUNDARAM, FUJII TOSHIHIRO, SATO GEN. Density functional theory-based reactivity descriptors for dioxins. Mol Phys 2002. [DOI: 10.1080/00268970110072395] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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TONARI K, MITSUI K, YONEMOTO K. Structure and Antibacterial Activity of Cinnamic Acid Related Compounds. J Oleo Sci 2002. [DOI: 10.5650/jos.51.271] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kobayashi S, Sugaya T, Sakata N, Uebayasi M, Sameshima K, Tanaka A. Prediction of endocrine disruptors based on a new structure-activity relationship for sex and environmental hormones using chemical hardness concept. Chem Pharm Bull (Tokyo) 2001; 49:680-8. [PMID: 11411516 DOI: 10.1248/cpb.49.680] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Classification of the relationship between electronic structures and biological activities of endocrine disruptors (so-called environmental hormones) was attempted using the parameters of absolute hardness (eta), absolute electronegativity (chi), and global softness (S), approximately defined as eta=1/2(epsilonLUMO-epsilonHOMO), chi=-1/2(epsilonHOMO+ epsilonLUMO), and S=1/eta, respectively, based on the hardness concept. The strength of binding affinity and toxicity of the chemicals were approximately proportional to the absolute hardness, and laterally toxic chlorinated PCDDs, PCBs, and DDTs are classified as chemically soft. Here we found that the electronic structures of environmental hormones can be classified into four main groups: 17beta-estradiol type (group I), testosterone type (group II), thyroxine type (group III), and HCH (hexachlorocyclohexane) type (group IV). Therefore, if we can predict the coordinate (chi, eta) of the electronic structure of one chemical on the eta-chi activity diagram, we would be able to predict the receptor with which the chemicals (environmental hormones) interact. For instance, 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD) is classified in group II, therefore, it would bind with the thyroid receptor more than the estrogen receptor (group I). It appears that dibutyl phthalate would not interact with estrogen receptor because it does not belong to group I. In addition, the coordinates of these four groups do not complementarily overlap with the electronic structures of 20 natural amino acid residues. The eta-chi activity diagram is a new tool for the prediction of the toxicity and biological activity of environmental hormones.
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Affiliation(s)
- S Kobayashi
- Department of Analytical Chemistry of Medicines, Showa Pharmaceutical University, Machida, Tokyo, Japan.
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Voie OA, Tysklind M, Andersson PL, Fonnum F. Activation of respiratory burst in human granulocytes by polychlorinated biphenyls: A structure-activity study. Toxicol Appl Pharmacol 2000; 167:118-24. [PMID: 10964762 DOI: 10.1006/taap.2000.8977] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The respiratory burst in human granulocytes activated by 33 different congeners of polychlorinated biphenyls (PCBs) was measured as luminol-amplified chemoluminescence. The selection of 20 (training set) compounds was based on multivariate chemical characterization, laying the groundwork for covering the whole chemical series of tetra- through hepta-chlorinated PCBs. In addition 6 congeners were used as a validation set, and 7 were mono- to tri-chlorinated congeners representing low-chlorinated compounds not covered by the training set. Only ortho-substituted biphenyls activate respiratory burst. There is a correlation between activated respiratory burst and the total surface area of congeners up to 230 x 10(-20) m(2). Congeners of larger size show a reduced activity. There is also a correlation between respiratory burst activity and the number of ortho-substituents. Furthermore, there is also a correlation with parameters that describe absolute hardness of the molecule and respiratory burst activity. Congeners with a 2,4, 6-substitution on one biphenyl ring are optimal activators. In conclusion, all three factors, size, rotation, and electronic properties, which are not independent of each other, are important for the activity of the PCBs.
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Affiliation(s)
- O A Voie
- Division for Environmental Toxicology, Norwegian Defence Research Establishment, Kjeller, N-2027, Norway
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Hayashi M, Nakamura Y, Higashi K, Kato H, Kishida F, Kaneko H. A quantitative structure–Activity relationship study of the skin irritation potential of phenols. Toxicol In Vitro 1999; 13:915-22. [DOI: 10.1016/s0887-2333(99)00077-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/1999] [Indexed: 10/16/2022]
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Kobayashi S, Kitadai M, Sameshima K, Ishii Y, Tanaka A. A theoretical investigation of the conformation changing of dioxins in the binding site of dioxin receptor model; role of absolute hardness–electronegativity activity diagrams for biological activity. J Mol Struct 1999. [DOI: 10.1016/s0022-2860(98)00521-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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