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Huang C, Tang H, Huang X, Chen H, Yang K, Yin Q, Zhang L, Li X, Mou X, Chen S, Zhang Y, Hu Y. Ethyl Vanillin Rapid Crystallization from Carboxymethyl Chitosan Ion-Switchable Hydrogels. Gels 2023; 9:gels9040335. [PMID: 37102947 PMCID: PMC10138138 DOI: 10.3390/gels9040335] [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: 02/15/2023] [Revised: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 04/28/2023] Open
Abstract
Polymer gels are usually used for crystal growth as the recovered crystals have better properties. Fast crystallization under nanoscale confinement holds great benefits, especially in polymer microgels as its tunable microstructures. This study demonstrated that ethyl vanillin can be quickly crystallized from carboxymethyl chitosan/ethyl vanillin co-mixture gels via classical swift cooling method and supersaturation. It found that EVA appeared with bulk filament crystals accelerated by a large quantity of nanoconfinement microregions resulted from space-formatted hydrogen network between EVA and CMCS when their concentration exceeds 1:1.4 and may occasionally arise when the concentration less than 1:0.8. It was observed that EVA crystal growth has two models involving hang-wall growth at the air-liquid interface at the contact line, as well as extrude-bubble growth at any sites on the liquid surface. Further investigations found that EVA crystals can be recovered from as-prepared ion-switchable CMCS gels by 0.1 M hydrochloric acid or acetic acid without defects. Consequently, the proposed method may offer an available scheme for a large-scale preparation of API analogs.
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Affiliation(s)
- Chenghong Huang
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Hong Tang
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Xiaorong Huang
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Hongjie Chen
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Kang Yang
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Qi Yin
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Lin Zhang
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Xia Li
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Xue Mou
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Shuangkou Chen
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
| | - Yuchan Zhang
- Institute of Life Science, And Laboratory of Tissue and Cell Biology, Lab Teaching & Management Center, Chongqing Medical University, Chongqing 400016, China
| | - Yan Hu
- Tuberculosis Reference Laboratory, Chongqing Tuberculosis Control Institute, Chongqing 400050, China
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2
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Dong G, Zhou J, Zhou G, Yin P, Yang J, Lu W, Gao C, Liao X, Wang B, Yang B. A heat-controlled release system of ethyl vanillin based on acyclic cucurbit[n]urils. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2022. [DOI: 10.1515/ijfe-2022-0055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Ethyl vanillin (EVA) is one of the most popular spices in the world, but it is unstable and is prone to lose its aroma. Host–Guest encapsulation by supramolecular hosts can improve stability of fragrance molecules and endow them with excellent heat-controlled release properties to satisfy requirements in food, cosmetic and tobacco, etc. Herein, two acyclic cucurbit[n]urils (ACBs, M1 and M2) inclusion complexes of EVA were prepared. Their binding behaviors were investigated by 1H NMR, SEM, XRD, FT-IR and TGA. The stoichiometric ratio was 1:1 by Job’s plot and the binding constant was determined by fluorescence titration. The intermolecular interaction between host and guest was studied by 2D-ROESY NMR and the inclusion mode was proposed. Finally, the heat-controlled release experiment indicated that the inclusion complexes of ACBs/EVA possess less volatilization at higher temperature, longer retention time and heat-controlled release. This study provides theoretical and technical guidance for expanding the application of EVA.
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Affiliation(s)
- Gaofeng Dong
- R&D Center of China Tobacco Yunnan Industrial Co. , Kunming 650231 , P. R. China
| | - Jiawei Zhou
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming 650500 , P. R. China
| | - Guiyuan Zhou
- R&D Center of China Tobacco Yunnan Industrial Co. , Kunming 650231 , P. R. China
| | - Peipei Yin
- R&D Center of China Tobacco Yunnan Industrial Co. , Kunming 650231 , P. R. China
| | - Jing Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming 650500 , P. R. China
| | - Wei Lu
- R&D Center of China Tobacco Yunnan Industrial Co. , Kunming 650231 , P. R. China
| | - Chuanzhu Gao
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming 650500 , P. R. China
| | - Xiali Liao
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming 650500 , P. R. China
| | - Baoxing Wang
- R&D Center of China Tobacco Yunnan Industrial Co. , Kunming 650231 , P. R. China
| | - Bo Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology , Kunming 650500 , P. R. China
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3
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Improving the Transglycosylation Activity of α-Glucosidase from Xanthomonas campestris Through Semi-rational Design for the Synthesis of Ethyl Vanillin-α-Glucoside. Appl Biochem Biotechnol 2022; 194:3082-3096. [DOI: 10.1007/s12010-022-03908-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 03/14/2022] [Indexed: 11/26/2022]
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4
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Islam MA, Zilani MNH, Biswas P, Khan DA, Rahman MH, Nahid R, Nahar N, Samad A, Ahammad F, Hasan MN. Evaluation of in vitro and in silico anti-inflammatory potential of some selected medicinal plants of Bangladesh against cyclooxygenase-II enzyme. JOURNAL OF ETHNOPHARMACOLOGY 2022; 285:114900. [PMID: 34896569 DOI: 10.1016/j.jep.2021.114900] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 11/12/2021] [Accepted: 12/05/2021] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Medicinal plants are sources of chemical treasures that can be used in treatment of different diseases, including inflammatory disorders. Traditionally, Heritiera littoralis, Ceriops decandra, Ligustrum sinense, and Polyscias scutellaria are used to treat pain, hepatitis, breast inflammation. The present research was designed to explore phytochemicals from the ethanol extracts of H. littoralis, C. decandra, L. sinense, and P. scutellaria to discern the possible pharmacophore (s) in the treatment of inflammatory disorders. MATERIAL AND METHODS The chemical compounds of experimental plants were identified through GC-MS analysis. Furthermore, in-vitro anti-inflammatory activity was assessed in human erythrocytes and an in-silico study was appraised against COX-2. RESULTS The experimental extracts totally revealed 77 compounds in GC-MS analysis and all the extracts showed anti-inflammatory activity in in-vitro assays. The most favorable phytochemicals as anti-inflammatory agents were selected via ADMET profiling and molecular docking with specific protein of the COX-2 enzyme. Molecular dynamics simulation (MDS) confirmed the stability of the selected natural compound at the binding site of the protein. Three phytochemicals exhibited the better competitive result than the conventional anti-inflammatory drug naproxen in molecular docking and MDS studies. CONCLUSION Both experimental and computational studies have scientifically revealed the folklore uses of the experimental medicinal plants in inflammatory disorders. Overall, N-(2-hydroxycyclohexyl)-4-methylbenzenesulfonamide (PubChem CID: 575170); Benzeneethanamine, 2-fluoro-. beta., 3, 4-trihydroxy-N-isopropyl (PubChem CID: 547892); and 3,5-di-tert-butylphenol (PubChem CID: 70825) could be the potential leads for COX-2 inhibitor for further evaluation of drug-likeliness.
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Affiliation(s)
- Md Aminul Islam
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
| | - Md Nazmul Hasan Zilani
- Department of Pharmacy, Faculty of Biological Science and Technology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
| | - Partha Biswas
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
| | - Dhrubo Ahmed Khan
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
| | - Md Hasanur Rahman
- Department of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh; ABEx Bio-Research Center, East Azampur, Dhaka, 1230, Bangladesh.
| | - Ruqayyah Nahid
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
| | - Nazmun Nahar
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
| | - Abdus Samad
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh; Laboratory of Computational Biology, Biological Solution Centre, Jashore, 7408, Bangladesh.
| | - Foysal Ahammad
- Laboratory of Computational Biology, Biological Solution Centre, Jashore, 7408, Bangladesh; Department of Biological Science, Faculty of Science, King Abdul-Aziz University, Jeddha, 21589, Saudi Arabia.
| | - Md Nazmul Hasan
- Laboratory of Pharmaceutical Biotechnology and Bioinformatics, Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
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Pan D, Gong X, Wang X, Li M. Role of Active Components of Medicinal Food in the Regulation of Angiogenesis. Front Pharmacol 2021; 11:594050. [PMID: 33716724 PMCID: PMC7944143 DOI: 10.3389/fphar.2020.594050] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 11/10/2020] [Indexed: 11/16/2022] Open
Abstract
Angiogenesis refers to the formation of new blood vessels from the endothelial cells of existing arteries, veins, and capillaries. Angiogenesis is involved in a variety of physiological and pathological processes, such as the formation of malignant and development of atherosclerosis and other diseases. In recent years, many studies have shown that the active components of food have a certain regulatory effect on angiogenesis and negligible clinical limitations. With the increasing attention being paid to medicine and food homology, exploring the effect of active food components on angiogenesis is of great significance. In this review, we discuss the source, composition, pharmacological activity, and mechanism of action of certain active components of medicinal foods in detail. These could help prevent angiogenesis-related complications or provide a basis for healthier dietary habits. This review can provide a theoretical basis for the research and development of highly efficient anti-angiogenic drugs with low toxicity.
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Affiliation(s)
- Dezhi Pan
- Department of Pharmacy, Inner Mongolia Medical University, Hohhot, China
| | - Xue Gong
- Department of Pharmacy, Baotou Medical College, Baotou, China
| | - Xiaoqin Wang
- Department of Pharmacy, Inner Mongolia Medical University, Hohhot, China
| | - Minhui Li
- Department of Pharmacy, Inner Mongolia Medical University, Hohhot, China
- Department of Pharmacy, Baotou Medical College, Baotou, China
- Pharmaceutical Laboratory, Inner Mongolia Institute of Traditional Chinese Medicine, Hohhot, China
- Inner Mongolia Key Laboratory of Characteristic Geoherbs Resources Protection and Utilization, Baotou Medical College, Baotou, China
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6
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Superparamagnetic core-shell dummy template molecularly imprinted polymer for magnetic solid-phase extraction of food additives prior to the determination by HPLC. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104169] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Zhao D, Jiang Y, Sun J, Li H, Huang M, Sun X, Zhao M. Elucidation of The Anti-Inflammatory Effect of Vanillin In Lps-Activated THP-1 Cells. J Food Sci 2019; 84:1920-1928. [PMID: 31264720 DOI: 10.1111/1750-3841.14693] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 05/07/2019] [Accepted: 05/15/2019] [Indexed: 12/11/2022]
Abstract
Vanillin, a kind of phenolic compound, is naturally found in food and beverage and widely used as a flavoring agent. In view of the safety and universality of vanillin, exploring the functions of vanillin on human is of great value. Thus, lipopolysaccharide (LPS)-activated THP-1 cells were selected as the cell model to evaluate the anti-inflammatory effect of vanillin in this study. On the basis of the results, vanillin markedly suppressed the expression of inflammatory cytokines (that is, TNF-α, IL-1β, IL-6, and IL-8), mediators (NO, iNOS, PGE2, and COX-2), and NLRP3 inflammasome (that is, NLRP3, ASC, and caspase-1), blocked the LPS-induced activation of the NF-κB/IκBα/AP-1 signaling pathway, and activated the gene expression of the Nrf2/HO-1 signaling pathway. In addition, it was confirmed that vanillin was unable to react with LPS due to the results of quantification by HS-SPME-GC-MS. Hence, vanillin could effectively attenuate LPS-induced inflammatory response by regulating the expression of intracellular signaling pathways in THP-1 cells. It is a potent anti-inflammatory component found in food and beverage. These findings might contribute to the overall understanding of the potential health benefits of vanillin for food application. PRACTICAL APPLICATION: In this study, the anti-inflammatory effect of vanillin (VA) was evaluated by ELISA, real-time PCR, and western blot in LPS-induced THP-1 cells. The hypothesis that VA could react with LPS was excluded due to the results of quantification by HS-SPME-GC-MS. On the basis of the result, vanillin could effectively attenuate LPS-induced inflammatory response in THP-1 cells and was a potent anti-inflammatory component natural in food and beverage. These findings might contribute to the overall understanding of the potential health benefits of vanillin for food application.
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Affiliation(s)
- Dongrui Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., 100048, Beijing, China.,School of Food Science and Engineering, South China Univ. of Technology, 510640, Guangzhou, China.,Beijing Laboratory for Food Quality and Safety, Beijing Technology and Business Univ., 100048, Beijing, China
| | - Yunsong Jiang
- Beijing Laboratory for Food Quality and Safety, Beijing Technology and Business Univ., 100048, Beijing, China
| | - Jinyuan Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., 100048, Beijing, China.,Beijing Laboratory for Food Quality and Safety, Beijing Technology and Business Univ., 100048, Beijing, China
| | - Hehe Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., 100048, Beijing, China.,Beijing Laboratory for Food Quality and Safety, Beijing Technology and Business Univ., 100048, Beijing, China
| | - Mingquan Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., 100048, Beijing, China.,Beijing Laboratory for Food Quality and Safety, Beijing Technology and Business Univ., 100048, Beijing, China
| | - Xiaotao Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., 100048, Beijing, China.,Beijing Laboratory for Food Quality and Safety, Beijing Technology and Business Univ., 100048, Beijing, China
| | - Mouming Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business Univ., 100048, Beijing, China.,School of Food Science and Engineering, South China Univ. of Technology, 510640, Guangzhou, China
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8
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Zhong L, Tong Y, Chuan J, Bai L, Shi J, Zhu Y. Protective effect of ethyl vanillin against Aβ-induced neurotoxicity in PC12 cells via the reduction of oxidative stress and apoptosis. Exp Ther Med 2019; 17:2666-2674. [PMID: 30930969 PMCID: PMC6425458 DOI: 10.3892/etm.2019.7242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 12/21/2018] [Indexed: 12/22/2022] Open
Abstract
Increased aggregation of β-amyloid (Aβ) peptides induces oxidative stress, which is considered a major contributor in the development of Alzheimer's disease (AD). Prevention of Aβ-induced neurotoxicity is proposed as a possible modality for treatment of AD. The present study aimed to elucidate possible effects of ethyl vanillin (EVA), an analog of vanillin isolated from vanilla beans, on the Aβ1-42-induced oxidative injury in PC12 cells. EVA restrained the decrease in PC12 cell viability and apoptosis induction caused by treatment with Aβ1-42. In addition, EVA markedly alleviated intracellular lipid peroxidation as demonstrated by malondialdehyde levels and reactive oxygen species production in Aβ1-42-treated PC12 cells. In addition, the reduction in the activity levels of the antioxidative enzymes superoxide dismutase, catalase and glutathione peroxidase was detected in Aβ1-42-treated PC12 cells. This effect was partially reversed by treatment with EVA. Furthermore, the results indicated that EVA attenuated Aβ1-42-induced caspase-3 activation and the increase noted in the apoptosis regulator Bcl-2/apoptosis regulator Bax ratio of PC12 cells. These results indicated that EVA could be used as an efficient and novel agent for the prevention of neurodegenerative diseases via inhibition of oxidative stress and cell apoptosis.
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Affiliation(s)
- Lei Zhong
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
| | - Yuna Tong
- Department of Nephrology, The Third People's Hospital of Chengdu, Chengdu, Sichuan 610031, P.R. China
| | - Junlan Chuan
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
| | - Lan Bai
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
| | - Jianyou Shi
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
| | - Yuxuan Zhu
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan 610072, P.R. China
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9
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Zhao DR, Jiang YS, Sun JY, Li HH, Luo XL, Zhao MM. Anti-inflammatory Mechanism Involved in 4-Ethylguaiacol-Mediated Inhibition of LPS-Induced Inflammation in THP-1 Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:1230-1243. [PMID: 30614688 DOI: 10.1021/acs.jafc.8b06263] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
4-Ethylguaiacol, a common aroma compound of baijiu (a traditional Chinese alcoholic beverage), was assessed for its potential anti-inflammatory effects in an LPS-induced THP-1 cell model. To characterize the effect of 4-ethylguaiacol on the LPS-induced inflammatory response, the mRNA and protein expression of the TLR4-MAPKs-NF-κB-IκBα-AP-1, Nrf2-HO-1, and AMPK-SIRT1 pathways were monitored by ELISA, real-time PCR, and Western blotting. On the basis of the result, 4-ethylguaiacol exerted anti-inflammatory effects at doses of 10, 100, and 500 μM (the concentration of 4-ethylguaiacol in gujinggong baijiu is in the range of 1044 ± 44 to 1661 ± 63 μg/L) and significantly mitigated LPS-induced inflammation via activation of the Nrf2-HO-1 and AMPK-SIRT1 pathways and inhibition of NF-κB and AP-1 activation, thereby markedly inhibiting the activation of inflammasomes and down-regulating the production of inflammatory cytokines. These results indicated that 4-ethylguaiacol could reverse LPS-induced inflammatory responses and is a natural, potent anti-inflammatory component in baijiu.
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Affiliation(s)
- Dong-Rui Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University , Beijing 100048 , China
- School of Food Science and Engineering , South China University of Technology , Guangzhou 510640 , China
- Beijing Laboratory for Food Quality and Safety , Beijing Technology and Business University , Beijing 100048 , China
| | - Yun-Song Jiang
- Beijing Laboratory for Food Quality and Safety , Beijing Technology and Business University , Beijing 100048 , China
| | - Jin-Yuan Sun
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University , Beijing 100048 , China
- Beijing Laboratory for Food Quality and Safety , Beijing Technology and Business University , Beijing 100048 , China
| | - He-He Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University , Beijing 100048 , China
- Beijing Laboratory for Food Quality and Safety , Beijing Technology and Business University , Beijing 100048 , China
| | - Xue-Lian Luo
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease , Chinese Center for Disease Control and Prevention , Beijing 102206 , China
| | - Mou-Ming Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University , Beijing 100048 , China
- School of Food Science and Engineering , South China University of Technology , Guangzhou 510640 , China
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10
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New bio-sensitive and biologically active single crystal of pyrimidine scaffold ligand and its gold and platinum complexes: DFT, antimicrobial, antioxidant, DNA interaction, molecular docking with DNA/BSA and anticancer studies. Bioorg Chem 2018; 81:144-156. [DOI: 10.1016/j.bioorg.2018.08.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/27/2018] [Accepted: 08/06/2018] [Indexed: 01/06/2023]
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11
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Zhao D, Shi D, Sun J, Li H, Zhao M, Sun B. Quantification and cytoprotection by vanillin, 4-methylguaiacol and 4-ethylguaiacol against AAPH-induced abnormal oxidative stress in HepG2 cells. RSC Adv 2018; 8:35474-35484. [PMID: 35547925 PMCID: PMC9087904 DOI: 10.1039/c8ra06505e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 09/30/2018] [Indexed: 11/25/2022] Open
Abstract
Vanillin, 4-methylguaiacol, and 4-ethylguaiacol, three phenolic compounds in Gujinggong (GJG) Chinese baijiu (Chinese liquor), were quantified by liquid–liquid extraction (LLE) combined with gas chromatography-mass spectrometry (GC-MS) and evaluated for their possible cytoprotective effects by AAPH-induced HepG2 cell model. To confirm whether vanillin, 4-methylguaiacol, and 4-ethylguaiacol protected HepG2 cells against AAPH-induced abnormal oxidative stress via motivating the Keap1–Nrf2 pathway, the gene and protein expression of Nrf2, Keap1, SOD, CAT, and GPx from the Keap1–Nrf2 pathway were measured with real-time PCR and western blot. Three levels of treatment doses (1000, 500, and 100 mg L−1) were applied. Results showed that vanillin, 4-methylguaiacol, and 4-ethylguaiacol exhibited potent cytoprotective effect in a dose-dependent manner, greatly alleviating or reversing the increased oxidative stress induced by AAPH through up-regulating the mRNA and protein expression levels of Nrf2, SOD, CAT, and GPx, and thereby, significantly improving the intracellular antioxidant defense system in HepG2 cells (p < 0.05). Based on these findings, it was confirmed that vanillin, 4-methylguaiacol, and 4-ethylguaiacol, natural components of Chinese baijiu, were able to modulate the expression of Nrf2 and its downstream antioxidative enzymes (i.e., SOD, CAT, and GPx) against AAPH-induced abnormal oxidative stress. Further, this study lays the foundation for better illustrating the health benefits of Chinese baijiu. Vanillin, 4-methylguaiacol, and 4-ethylguaiacol widely exist in Gujinggong Chinese baijiu and could protect HepG2 cells against oxidative stress via activating the Nrf2 pathway.![]()
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Affiliation(s)
- Dongrui Zhao
- School of Food Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
- Beijing Laboratory for Food Quality and Safety
| | - Dongmei Shi
- Beijing Laboratory for Food Quality and Safety
- Beijing Technology and Business University
- Beijing 100048
- P. R. China
| | - Jinyuan Sun
- Beijing Laboratory for Food Quality and Safety
- Beijing Technology and Business University
- Beijing 100048
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Hehe Li
- Beijing Laboratory for Food Quality and Safety
- Beijing Technology and Business University
- Beijing 100048
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Mouming Zhao
- School of Food Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Baoguo Sun
- Beijing Laboratory for Food Quality and Safety
- Beijing Technology and Business University
- Beijing 100048
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
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12
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Peretti AL, Antunes JS, Lovison K, Kunz RI, Castor LRG, Brancalhão RMC, Bertolini GRF, Ribeiro LDFC. Action of vanillin (Vanilla planifolia) on the morphology of tibialis anterior and soleus muscles after nerve injury. EINSTEIN-SAO PAULO 2017; 15:186-191. [PMID: 28767917 PMCID: PMC5609615 DOI: 10.1590/s1679-45082017ao3967] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 04/12/2017] [Indexed: 01/28/2023] Open
Abstract
Objective To evaluate the action of vanillin (Vanilla planifolia) on the morphology of tibialis anterior and soleus muscles after peripheral nerve injury. Methods Wistar rats were divided into four groups, with seven animals each: Control Group, Vanillin Group, Injury Group, and Injury + Vanillin Group. The Injury Group and the Injury + Vanillin Group animals were submitted to nerve injury by compression of the sciatic nerve; the Vanillin Group and Injury + Vanillin Group, were treated daily with oral doses of vanillin (150mg/kg) from the 3rd to the 21st day after induction of nerve injury. At the end of the experiment, the tibialis anterior and soleus muscles were dissected and processed for light microscopy and submitted to morphological analysis. Results The nerve compression promoted morphological changes, typical of denervation, and the treatment with vanillin was responsible for different responses in the studied muscles. For the tibialis anterior, there was an increase in the number of satellite cells, central nuclei and fiber atrophy, as well as fascicular disorganization. In the soleus, only increased vascularization was observed, with no exacerbation of the morphological alterations in the fibers. Conclusion The treatment with vanillin promoted increase in intramuscular vascularization for the muscles studied, with pro-inflammatory potential for tibialis anterior, but not for soleus muscle.
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Affiliation(s)
| | | | - Keli Lovison
- Universidade Estadual do Oeste do Paraná, Cascavel, PR, Brazil
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Clapp PW, Pawlak EA, Lackey JT, Keating JE, Reeber SL, Glish GL, Jaspers I. Flavored e-cigarette liquids and cinnamaldehyde impair respiratory innate immune cell function. Am J Physiol Lung Cell Mol Physiol 2017; 313:L278-L292. [PMID: 28495856 PMCID: PMC5582929 DOI: 10.1152/ajplung.00452.2016] [Citation(s) in RCA: 161] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 05/04/2017] [Accepted: 05/04/2016] [Indexed: 11/22/2022] Open
Abstract
Innate immune cells of the respiratory tract are the first line of defense against pathogenic and environmental insults. Failure of these cells to perform their immune functions leaves the host susceptible to infection and may contribute to impaired resolution of inflammation. While combustible tobacco cigarettes have been shown to suppress respiratory immune cell function, the effects of flavored electronic cigarette liquids (e-liquids) and individual flavoring agents on respiratory immune cell responses are unknown. We investigated the effects of seven flavored nicotine-free e-liquids on primary human alveolar macrophages, neutrophils, and natural killer (NK) cells. Cells were challenged with a range of e-liquid dilutions and assayed for their functional responses to pathogenic stimuli. End points included phagocytic capacity (neutrophils and macrophages), neutrophil extracellular trap formation, proinflammatory cytokine production, and cell-mediated cytotoxic response (NK cells). E-liquids were then analyzed via mass spectrometry to identify individual flavoring components. Three cinnamaldehyde-containing e-liquids exhibited dose-dependent broadly immunosuppressive effects. Quantitative mass spectrometry was used to determine concentrations of cinnamaldehyde in each of the three e-liquids, and cells were subsequently challenged with a range of cinnamaldehyde concentrations. Cinnamaldehyde alone recapitulated the impaired function observed with e-liquid exposures, and cinnamaldehyde-induced suppression of macrophage phagocytosis was reversed by addition of the small-molecule reducing agent 1,4-dithiothreitol. We conclude that cinnamaldehyde has the potential to impair respiratory immune cell function, illustrating an immediate need for further toxicological evaluation of chemical flavoring agents to inform regulation governing their use in e-liquid formulations.
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Affiliation(s)
- Phillip W Clapp
- Curriculum in Toxicology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina
- Center for Environmental Medicine, Asthma, and Lung Biology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina; and
| | - Erica A Pawlak
- Center for Environmental Medicine, Asthma, and Lung Biology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina; and
| | - Justin T Lackey
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina
| | - James E Keating
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina
| | - Steven L Reeber
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina
| | - Gary L Glish
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina
| | - Ilona Jaspers
- Curriculum in Toxicology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina;
- Center for Environmental Medicine, Asthma, and Lung Biology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina; and
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Zhao D, Sun J, Sun B, Zhao M, Zheng F, Huang M, Sun X, Li H. Intracellular antioxidant effect of vanillin, 4-methylguaiacol and 4-ethylguaiacol: three components in Chinese Baijiu. RSC Adv 2017. [DOI: 10.1039/c7ra09302k] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Vanillin, 4-methylguaiacol, and 4-ethylguaiacol can improve AAPH-induced alterations in oxidative stress biomarkers and antioxidant enzymes in HepG2 cells.
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Affiliation(s)
- Dongrui Zhao
- School of Food Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
- Beijing Laboratory for Food Quality and Safety
| | - Jinyuan Sun
- Beijing Laboratory for Food Quality and Safety
- Beijing Technology and Business University
- Beijing 100048
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Baoguo Sun
- Beijing Laboratory for Food Quality and Safety
- Beijing Technology and Business University
- Beijing 100048
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Mouming Zhao
- School of Food Science and Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Fuping Zheng
- Beijing Laboratory for Food Quality and Safety
- Beijing Technology and Business University
- Beijing 100048
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Mingquan Huang
- Beijing Laboratory for Food Quality and Safety
- Beijing Technology and Business University
- Beijing 100048
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Xiaotao Sun
- Beijing Laboratory for Food Quality and Safety
- Beijing Technology and Business University
- Beijing 100048
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
| | - Hehe Li
- Beijing Laboratory for Food Quality and Safety
- Beijing Technology and Business University
- Beijing 100048
- P. R. China
- Beijing Advanced Innovation Center for Food Nutrition and Human Health
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15
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Mencia G, del Olmo NS, Muñoz-Moreno L, Maroto-Diaz M, Gomez R, Ortega P, José Carmena M, Javier de la Mata F. Polyphenolic carbosilane dendrimers as anticancer agents against prostate cancer. NEW J CHEM 2016. [DOI: 10.1039/c6nj02545e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polyphenolic carbosilane dendrimers improved the antioxidant and anticancer properties of free vanillin.
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Affiliation(s)
- Gabriel Mencia
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá
- Campus Universitario
- Edificio de Farmacia
- E-28871 Alcalá de Henares
- Spain
| | - Natalia Sanz del Olmo
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá
- Campus Universitario
- Edificio de Farmacia
- E-28871 Alcalá de Henares
- Spain
| | - Laura Muñoz-Moreno
- Departamento de Biología de Sistemas, Universidad de Alcalá
- Campus Universitario
- E-28871 Alcalá de Henares
- Spain
| | - Marta Maroto-Diaz
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá
- Campus Universitario
- Edificio de Farmacia
- E-28871 Alcalá de Henares
- Spain
| | - Rafael Gomez
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá
- Campus Universitario
- Edificio de Farmacia
- E-28871 Alcalá de Henares
- Spain
| | - Paula Ortega
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá
- Campus Universitario
- Edificio de Farmacia
- E-28871 Alcalá de Henares
- Spain
| | - Ma José Carmena
- Departamento de Biología de Sistemas, Universidad de Alcalá
- Campus Universitario
- E-28871 Alcalá de Henares
- Spain
| | - F. Javier de la Mata
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá
- Campus Universitario
- Edificio de Farmacia
- E-28871 Alcalá de Henares
- Spain
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16
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Guo Y, Fan XM, Nie M, Liu HW, Liao DH, Pan XD, Ji YF. Practical Ligand-Free Copper-Catalysed Short-Chain Alkoxylation of Unactivated Aryl Bromides. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500500] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Turrini E, Ferruzzi L, Guerrini A, Gotti R, Tacchini M, Teti G, Falconi M, Hrelia P, Fimognari C. In vitro anti-angiogenic effects of Hemidesmus indicus in hypoxic and normoxic conditions. JOURNAL OF ETHNOPHARMACOLOGY 2015; 162:261-269. [PMID: 25560668 DOI: 10.1016/j.jep.2014.12.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 10/24/2014] [Accepted: 12/05/2014] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The decoction of the roots of Hemidesmus indicus is widely used in the Indian traditional medicine for many purposes and poly-herbal preparations containing Hemidesmus are often used by traditional medical practitioners for the treatment of cancer. In the context of anticancer pharmacology, anti-angiogenic therapy has become an effective strategy for inhibiting new vessel formation and contrast tumor growth. These considerations are supported by the evidence that most tumors originate in hypoxic conditions and limitation of oxygen diffusion stimulates the formation of tumor abnormal microvasculature. Aim of this study was to evaluate the in vitro anti-angiogenic potential of Hemidesmus indicus (0.31-0.93 mg/mL) on human umbilical vein endothelial cells and delineate the main molecular mechanisms involved in its anti-angiogenic activity both in normoxia and hypoxia. MATERIALS AND METHODS The decoction of Hemidesmus indicus was subjected to an extensive HPLC phytochemical characterization. Its in vitro anti-angiogenic potential was investigated in normoxia and hypoxia. Cell proliferation, apoptosis induction, and inhibition of endothelial cell migration and invasion were analyzed by flow cytometry. The endothelial tube formation assay was evaluated in matrix gel. The capillary tube branch points formed were counted using a Motic AE21 microscope and a VisiCam videocamera. The regulation of key factors of the neovascularization process such as VEGF, HIF-1α and VEGFR-2 was explored at mRNA and protein level by real time PCR and flow cytometry, respectively. RESULTS Treatment with Hemidesmus resulted in a significant inhibition of cell proliferation and tube formation in both normoxia and hypoxia. Hemidesmus differently regulated multiple molecular targets related to angiogenesis according to oxygen availability. In normoxia, the inhibition of VEGF was the main responsible for its anti-angiogenic effect; the angiogenesis inhibition induced in hypoxia was regulated by a more complex mechanism involving firstly HIF-1α inhibition, and then VEGF and VEGFR-2 down-regulation. Additionally, the inhibition of endothelial cell migration and invasion by Hemidesmus was more pronounced in normoxia than in hypoxia, possibly due to the physiological enhanced induction of invasion characteristic of hypoxia. CONCLUSIONS Our results indicate that Hemidesmus might represent a promising therapeutic strategy for diseases in which the inhibition of angiogenesis could be beneficial, such as cancer. The antiangiogenic activity of Hemidesmus is based on multiple interactions with critical steps in the angiogenic cascade. VEGF expression stimulated by HIF-1α as well as endothelial cell migration and differentiation represent important targets of Hemidesmus action and might contribute to its cancer therapeutic efficacy that is presently emerging and offer a scientific basis for its use in traditional medicine.
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Affiliation(s)
- E Turrini
- Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Corso d'Augusto 237, 47921 Rimini, Italy
| | - L Ferruzzi
- Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Corso d'Augusto 237, 47921 Rimini, Italy
| | - A Guerrini
- Department of Life Sciences and Biotechnologies, University of Ferrara, 44121 Ferrara, Italy
| | - R Gotti
- Department of Pharmacy and BioTechnology, Alma Mater Studiorum-University of Bologna, 40126 Bologna, Italy
| | - M Tacchini
- Department of Life Sciences and Biotechnologies, University of Ferrara, 44121 Ferrara, Italy
| | - G Teti
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum-University of Bologna, 40126 Bologna, Italy
| | - M Falconi
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum-University of Bologna, 40126 Bologna, Italy
| | - P Hrelia
- Department of Pharmacy and BioTechnology, Alma Mater Studiorum-University of Bologna, 40126 Bologna, Italy
| | - C Fimognari
- Department for Life Quality Studies, Alma Mater Studiorum-University of Bologna, Corso d'Augusto 237, 47921 Rimini, Italy.
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18
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Raffai G, Khang G, Vanhoutte PM. Vanillin and vanillin analogs relax porcine coronary and basilar arteries by inhibiting L-type Ca2+ channels. J Pharmacol Exp Ther 2014; 352:14-22. [PMID: 25344384 DOI: 10.1124/jpet.114.217935] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Vanillin (VA) and vanillyl alcohol (VAA), components of natural vanilla, and ethyl vanillin (EtVA; synthetic analog) are used as flavoring agents and/or as additives by the food, cosmetic, or pharmaceutic industries. VA, VAA, and EtVA possess antioxidant and anti-inflammatory properties, but their vascular effects have not been determined. Therefore, we compared in isolated porcine coronary and basilar arteries the changes in isometric tension caused by VA, VAA, and EtVA. VA and its analogs caused concentration-dependent relaxations of both preparations during contractions from U46619 (9,11-dideoxy-11α,9α-epoxymethanoprostaglandin F2α, a thromboxane A2 receptor agonist), and of coronary arteries contracted with KCl or endothelin-1. The order of potency was VAA < VA < EtVA. The relaxations were not inhibited by endothelium removal, by inhibitors of NO synthases (N(ω)-nitro-l-arginine methyl ester hydrochloride), cyclooxygenases (indomethacin), soluble guanylyl cyclase (1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one [ODQ]), KCa (1-[(2-chlorophenyl)diphenylmethyl]-1H-pyrazole [TRAM-34], 6,12,19,20,25,26-hexahydro-5,27:13,18:21,24-trietheno-11,7-metheno-7H-dibenzo[b,n][1,5,12,16]tetraazacyclotricosine-5,13-diium ditrifluoroacetate hydrate [UCL-1684], or iberiotoxin), by KATP (glibenclamide), by Kir (BaCl2), by transient receptor potential receptor vanilloid 3 (TRPV3) channels (ruthenium red), or by antioxidants (catalase, apocynin, tempol, N-acetylcysteine, tiron). VA and its analogs inhibited contractions induced by Ca(2+) reintroduction in coronary arteries, and by an opener of L-type Ca(2+)-channels (methyl 2,6-dimethyl-5-nitro-4-[2-(trifluoromethyl)phenyl]-1,4-dihydropyridine-3-carboxylate [Bay K8644]) in coronary and basilar arteries. They inhibited contractions of coronary rings induced by the protein kinase C activator phorbol 12,13-dibutyrate to the same extent as the removal of extracellular Ca(2+) or incubation with nifedipine. Thus, in porcine arteries, relaxation from VA (and its analogs) is due to inhibition of L-type Ca(2+) channels. Hence, these compounds could be used to relieve coronary or cerebral vasospasms due to exaggerated Ca(2+) influx, but therapeutic efficacy would require exposures that far exceed the current levels obtained by the use of vanillin additives.
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Affiliation(s)
- Gábor Raffai
- Department of BIN Fusion Technology, Department of Polymer Nano Science & Technology, Chonbuk National University, Jeonju, South Korea (G.R., G.K., P.M.V.); and Key State Laboratory of Pharmaceutical Biotechnologies and Department of Pharmacology and Pharmacy, University of Hong Kong, Hong Kong SAR, People's Republic of China (P.M.V.)
| | - Gilson Khang
- Department of BIN Fusion Technology, Department of Polymer Nano Science & Technology, Chonbuk National University, Jeonju, South Korea (G.R., G.K., P.M.V.); and Key State Laboratory of Pharmaceutical Biotechnologies and Department of Pharmacology and Pharmacy, University of Hong Kong, Hong Kong SAR, People's Republic of China (P.M.V.)
| | - Paul M Vanhoutte
- Department of BIN Fusion Technology, Department of Polymer Nano Science & Technology, Chonbuk National University, Jeonju, South Korea (G.R., G.K., P.M.V.); and Key State Laboratory of Pharmaceutical Biotechnologies and Department of Pharmacology and Pharmacy, University of Hong Kong, Hong Kong SAR, People's Republic of China (P.M.V.)
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20
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Oxidative decarboxylation of mandelic acid derivative by recombinant Escherichia coli: a novel method of ethyl vanillin synthesis. Biotechnol Lett 2013; 35:921-7. [DOI: 10.1007/s10529-013-1158-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 01/29/2013] [Indexed: 10/27/2022]
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21
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Jungbauer A, Medjakovic S. Anti-inflammatory properties of culinary herbs and spices that ameliorate the effects of metabolic syndrome. Maturitas 2012; 71:227-39. [DOI: 10.1016/j.maturitas.2011.12.009] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 12/09/2011] [Accepted: 12/10/2011] [Indexed: 01/07/2023]
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Gao J, Guo Y, Wang J, Wang Z, Jin X, Cheng C, Li Y, Li K. Spectroscopic analyses on interaction of o-Vanillin-D-Phenylalanine, o-Vanillin-L-Tyrosine and o-Vanillin-L-Levodopa Schiff Bases with bovine serum albumin (BSA). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 78:1278-1286. [PMID: 21295513 DOI: 10.1016/j.saa.2010.12.077] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Revised: 12/14/2010] [Accepted: 12/25/2010] [Indexed: 05/30/2023]
Abstract
In this work, three o-Vanillin Schiff Bases (o-VSB: o-Vanillin-D-Phenylalanine (o-VDP), o-Vanillin-L-Tyrosine (o-VLT) and o-Vanillin-L-Levodopa (o-VLL)) with alanine constituent were synthesized by direct reflux method in ethanol solution, and then were used to study the interaction to bovine serum albumin (BSA) molecules by fluorescence spectroscopy. Based on the fluorescence quenching calculation, the bimolecular quenching constant (K(q)), apparent quenching constant (K(sv)), effective binding constant (K(A)) and corresponding dissociation constant (K(D)) as well as binding site number (n) were obtained. In addition, the binding distance (r) was also calculated according to Foster's non-radioactive energy transfer theory. The results show that these three o-VSB can efficiently bind to BSA molecules, but the binding array order is o-VDP-BSA>o-VLT-BSA>o-VLL-BSA. Synchronous fluorescence spectroscopy indicates that the o-VDP is more accessibility to tryptophan (Trp) residues of BSA molecules than to tyrosine (Tyr) residues. Nevertheless, the o-VLT and o-VLL are more accessibility to Tyr residues than to Trp residues.
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Affiliation(s)
- Jingqun Gao
- Department of Chemistry, Liaoning University, Shenyang, PR China
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