1
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Zhu F, Dai J, Yan Z, Xu Q, Ma M, Chen N, Liu D, Zang Y. Engineering regioselectivity of glycosyltransferase for efficient polydatin synthesis. Food Chem 2024; 460:140698. [PMID: 39098192 DOI: 10.1016/j.foodchem.2024.140698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 07/25/2024] [Accepted: 07/27/2024] [Indexed: 08/06/2024]
Abstract
Resveratrol is a promising functional ingredient applied in food products. However, low bioavailability and poor water solubility, which can be improved by glycosylation, hinder its application. A uridine diphosphate-dependent glycosyltransferase (UGT) from Bacillus subtilis 168 (named UGTBS) presents potential application for resveratrol glycosylation; nonetheless, imprecise regioselectivity renders the synthesis of resveratrol-3-O-β-D-glucoside (polydatin) difficult. Therefore, molecular evolution was applied to UGTBS. A triple mutant Y14I/I62G/M315W was developed for 3-OH glycosylation of resveratrol and polydatin accounted for 91% of the total product. Kinetic determination and molecular docking indicated that the enhancement of hydrogen bond interaction and altered conformation of the binding pocket increases the enzyme's affinity for the 3-OH group, stabilizing the enzyme-substrate intermediate and promoting polydatin formation. Furthermore, a fed-batch cascade reaction by periodic addition of resveratrol was conducted and nearly 20 mM polydatin was obtained. The mutant Y14I/I62G/M315W can be used for polydatin manufacture.
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Affiliation(s)
- Fucheng Zhu
- College of Biological and Pharmaceutical Engineering, Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, West Anhui University, Lu'an city 237012, China.
| | - Jingli Dai
- College of Biological and Pharmaceutical Engineering, Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, West Anhui University, Lu'an city 237012, China; School of Pharmacy, Anhui University of Traditional Chinese Medicine, HeFei 230012, China
| | - Zixu Yan
- College of Biological and Pharmaceutical Engineering, Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, West Anhui University, Lu'an city 237012, China; School of Pharmacy, Anhui University of Traditional Chinese Medicine, HeFei 230012, China
| | - Qilin Xu
- College of Biological and Pharmaceutical Engineering, Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, West Anhui University, Lu'an city 237012, China
| | - Menghua Ma
- College of Biological and Pharmaceutical Engineering, Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, West Anhui University, Lu'an city 237012, China
| | - Naidong Chen
- College of Biological and Pharmaceutical Engineering, Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, West Anhui University, Lu'an city 237012, China
| | - Dandan Liu
- Hepatology Department, Lu'an Hospital of Traditional Chinese Medicine, Lu'an city 237005, China
| | - Yongjun Zang
- College of Biological and Pharmaceutical Engineering, Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, Anhui Province Key Laboratory for Quality Evaluation and Improvement of Traditional Chinese Medicine, West Anhui University, Lu'an city 237012, China.
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2
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Costas-Lago MC, Besada P, Mosquera R, Cano E, Terán C. Stilbene-pyridazinone hybrids: design, synthesis and in vitro antiplatelet activity screening. Bioorg Chem 2024; 150:107615. [PMID: 38986420 DOI: 10.1016/j.bioorg.2024.107615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/23/2024] [Accepted: 07/02/2024] [Indexed: 07/12/2024]
Abstract
A series of stilbene analogues, in which a phenyl ring was replaced by the pyridazin-3(2H)-one nucleus, was designed and synthesized to be explored as platelet aggregation inhibitors. The proposed stilbene-pyridazinone hybrids were successfully obtained from simple starting materials and by Wittig's reaction. Most of the target compounds displayed improved in vitro activity in comparison with the standard drug, resveratrol, highlighting as the most potent the analogues 10d and 10e, with inhibition percentages of 94.15 % at 100 µM and 100 % at 50 µM, respectively. The pharmacokinetic and toxicity (ADME/T) properties of the novel hybrids were also estimated with the SwissADME and ProTox-II web servers.
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Affiliation(s)
- Maria Carmen Costas-Lago
- Universidade de Vigo, Departamento de Química Orgánica, 36310 Vigo, España; Instituto de Investigación Sanitaria Galicia Sur, Hospital Álvaro Cunqueiro, 36213 Vigo, España
| | - Pedro Besada
- Universidade de Vigo, Departamento de Química Orgánica, 36310 Vigo, España; Instituto de Investigación Sanitaria Galicia Sur, Hospital Álvaro Cunqueiro, 36213 Vigo, España
| | - Ricardo Mosquera
- Universidade de Vigo, Departamento de Química Física, 36310 Vigo, España
| | - Ernesto Cano
- Departamento de Farmacoloxía, Farmacia e Tecnoloxía Farmacéutica. Universidade de Santiago de Compostela, 15782 Santiago de Compostela, España
| | - Carmen Terán
- Universidade de Vigo, Departamento de Química Orgánica, 36310 Vigo, España; Instituto de Investigación Sanitaria Galicia Sur, Hospital Álvaro Cunqueiro, 36213 Vigo, España.
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3
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Ji Y, Sun J, Xie J, Wu W, Shuai SC, Zhao Q, Chen W. m5UMCB: Prediction of RNA 5-methyluridine sites using multi-scale convolutional neural network with BiLSTM. Comput Biol Med 2024; 168:107793. [PMID: 38048661 DOI: 10.1016/j.compbiomed.2023.107793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/20/2023] [Accepted: 11/28/2023] [Indexed: 12/06/2023]
Abstract
As a prevalent RNA modification, 5-methyluridine (m5U) plays a critical role in diverse biological processes and disease pathogenesis. High-throughput identification of m5U typically relies on labor-intensive biochemical experiments using various sequencing-based techniques, which are not only time-consuming but also expensive. Consequently, there is a pressing need for more efficient and cost-effective computational methods to complement these high-throughput techniques. In this study, we present m5UMCB, a novel approach that harnesses a multi-scale convolutional neural network (CNN) in tandem with bidirectional long short-term memory (BiLSTM) to recognize m5U sites. Our method involves segmenting RNA sequences into smaller fragments based on a 3-mer length and subsequently mapping each fragment to a lower-dimensional vector representation using the global vectors for word representation (GloVe) technique. Through a series of multi-scale convolution and pooling operations, local features are extracted from RNA sequences and transformed into abstract, high-level features. The feature matrix is then inputted into a BiLSTM network, enabling the capture of contextual information and long-term dependencies within the sequence. Ultimately, a fully connected layer is employed to classify m5U sites. The validation results from 5-fold cross-validation (5-fold CV) test indicate that m5UMCB outperforms existing state-of-the-art predictive methods, demonstrating a 1.98% increase in the area under ROC curve (AUC) and significant improvements in relevant evaluation metrics. We are confident that m5UMCB will serve as a valuable tool for m5U prediction.
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Affiliation(s)
- Yingshan Ji
- School of Computer Science and Software Engineering, University of Science and Technology Liaoning, Anshan, 114051, China
| | - Jianqiang Sun
- School of Information Science and Engineering, Linyi University, Linyi, 276000, China
| | - Jingxuan Xie
- School of Computer Science and Software Engineering, University of Science and Technology Liaoning, Anshan, 114051, China
| | - Wei Wu
- School of Computer Science and Software Engineering, University of Science and Technology Liaoning, Anshan, 114051, China
| | - Stella C Shuai
- Biological Science, Northwestern University, Evanston, IL, 60208, USA
| | - Qi Zhao
- School of Computer Science and Software Engineering, University of Science and Technology Liaoning, Anshan, 114051, China.
| | - Wei Chen
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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4
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Vishakha S, Navneesh N, Kurmi BD, Gupta GD, Verma SK, Jain A, Patel P. An Expedition on Synthetic Methodology of FDA-approved Anticancer Drugs (2018-2021). Anticancer Agents Med Chem 2024; 24:590-626. [PMID: 38288815 DOI: 10.2174/0118715206259585240105051941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 12/20/2023] [Accepted: 12/22/2023] [Indexed: 05/29/2024]
Abstract
New drugs being established in the market every year produce specified structures for selective biological targeting. With medicinal insights into molecular recognition, these begot molecules open new rooms for designing potential new drug molecules. In this review, we report the compilation and analysis of a total of 56 drugs including 33 organic small molecules (Mobocertinib, Infigratinib, Sotorasib, Trilaciclib, Umbralisib, Tepotinib, Relugolix, Pralsetinib, Decitabine, Ripretinib, Selpercatinib, Capmatinib, Pemigatinib, Tucatinib, Selumetinib, Tazemetostat, Avapritinib, Zanubrutinib, Entrectinib, Pexidartinib, Darolutamide, Selinexor, Alpelisib, Erdafitinib, Gilteritinib, Larotrectinib, Glasdegib, Lorlatinib, Talazoparib, Dacomitinib, Duvelisib, Ivosidenib, Apalutamide), 6 metal complexes (Edotreotide Gallium Ga-68, fluoroestradiol F-18, Cu 64 dotatate, Gallium 68 PSMA-11, Piflufolastat F-18, 177Lu (lutetium)), 16 macromolecules as monoclonal antibody conjugates (Brentuximabvedotin, Amivantamab-vmjw, Loncastuximabtesirine, Dostarlimab, Margetuximab, Naxitamab, Belantamabmafodotin, Tafasitamab, Inebilizumab, SacituzumabGovitecan, Isatuximab, Trastuzumab, Enfortumabvedotin, Polatuzumab, Cemiplimab, Mogamulizumab) and 1 peptide enzyme (Erwiniachrysanthemi-derived asparaginase) approved by the U.S. FDA between 2018 to 2021. These drugs act as anticancer agents against various cancer types, especially non-small cell lung, lymphoma, breast, prostate, multiple myeloma, neuroendocrine tumor, cervical, bladder, cholangiocarcinoma, myeloid leukemia, gastrointestinal, neuroblastoma, thyroid, epithelioid and cutaneous squamous cell carcinoma. The review comprises the key structural features, approval times, target selectivity, mechanisms of action, therapeutic indication, formulations, and possible synthetic approaches of these approved drugs. These crucial details will benefit the scientific community for futuristic new developments in this arena.
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Affiliation(s)
- S Vishakha
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - N Navneesh
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Balak Das Kurmi
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Ghanshyam Das Gupta
- Department of Pharmaceutics, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Sant Kumar Verma
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy, Moga, 142001, Punjab, India
| | - Ankit Jain
- Department of Pharmaceutical Sciences, Texas A & M University, Kingsville, 78363, Texas, United States of America
| | - Preeti Patel
- Department of Pharmaceutical Chemistry and Analysis, ISF College of Pharmacy, Moga, 142001, Punjab, India
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5
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Vörös D, Angeletti A, Franchini C, Mai S, González L. Adsorption of 4-( N, N-Dimethylamino)-4'-nitrostilbene on an Amorphous Silica Glass Surface. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:22964-22974. [PMID: 38053626 PMCID: PMC10694811 DOI: 10.1021/acs.jpcc.3c05552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/03/2023] [Accepted: 11/03/2023] [Indexed: 12/07/2023]
Abstract
Stilbenes are a compelling class of organic photoswitches with a high degree of tunability that sensitively depend on their environment. In this study, we investigate the adsorption properties of 4-(N,N-dimethylamino)-4'-nitrostilbene (DANS), a push-pull stilbene, on amorphous silica glass. Plane-wave density functional theory (DFT) calculations are used to understand how the trans and cis isomers of DANS interact with the amorphous surface and which are the most preferred modes of adsorption. Our calculations revealed that the O-H···O hydrogen bonds between the nitro group and hydroxyl groups of the silica surface dominate the intramolecular interaction. In addition to hydrogen bonding, O-H···π interactions with the aromatic ring and double bond play a critical role in adsorption, whereas C-H···O interactions are present, but contribute little. Therefore, both isomers of DANS favor parallel orientations such that not only the functional groups but also the aromatic parts can strongly interact with the glass surface.
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Affiliation(s)
- Dóra Vörös
- Institute
of Theoretical Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 17, 1090 Vienna, Austria
- Vienna
Doctoral School in Physics, University of
Vienna, Boltzmanngasse
5, 1090 Vienna, Austria
| | - Andrea Angeletti
- Computational
Materials Physics, Faculty of Physics, University
of Vienna, Kolingasse
14-16, 1090 Vienna, Austria
- Vienna
Doctoral School in Physics, University of
Vienna, Boltzmanngasse
5, 1090 Vienna, Austria
| | - Cesare Franchini
- Computational
Materials Physics, Faculty of Physics, University
of Vienna, Kolingasse
14-16, 1090 Vienna, Austria
- Department
of Physics and Astronomy ’Augusto Righi’, Alma Mater Studiorum—Università di Bologna, Bologna 40127, Italy
| | - Sebastian Mai
- Institute
of Theoretical Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 17, 1090 Vienna, Austria
| | - Leticia González
- Institute
of Theoretical Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 17, 1090 Vienna, Austria
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6
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Zhang F, Zhang R, He S, Guan J, Feng Z, Wu Z. Formation of free radicals in Chi-aroma Baijiu during aging process with fat pork. Free Radic Res 2023; 57:271-281. [PMID: 37401820 DOI: 10.1080/10715762.2023.2232095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/05/2023]
Abstract
Soaking aged fat pork is a special aging process in the production of Chi-aroma Baijiu considered to involve the formation of free radicals. This study aimed to investigate the free radicals' formation pathway in Chi-aroma Baijiu during aged fat pork soaking by using electron paramagnetic resonance (EPR) and spin trapping with 5,5-dimethyl-1-pyrrolin-n-oxide (DMPO). The alkyl radical adducts (DMPO-R) and hydroxyl radical adducts (DMPO-OH) were detected in Baijiu after soaking the fat pork for aging. During the preparation process of aged fat pork, alkoxy radicals adduct (DMPO-RO) were mainly detected since lipid oxidation. Oleic acid and linoleic acid, the two main unsaturated fatty acids in fat pork, produced alkoxy radicals in the oxidation process. The total amounts of spins in linoleic acid and oleic acid after 4-month oxidation treatment increased by 248.07 ± 26.65% and 34.17 ± 0.72% than 0-month. It indicated that the free radicals in aged Chi-aroma Baijiu were mainly derived from the two main unsaturated fatty acids in aged fat pork and linoleic acid had a stronger ability to produce free radicals than oleic acid. Alkoxy radicals (RO·) from fat pork reacted with ethanol in Baijiu to form alkyl radicals (R·). The peroxide bond of hydroperoxides from the oxidation of unsaturated fatty acid was cleaved to form hydroxyl radicals (·OH) that were transferred to Baijiu. The results provide theoretical guidance for the subsequent work of free radicals scavenging.
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Affiliation(s)
- Fengjiao Zhang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Renjie Zhang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
- Pan Asia (Jiangmen) Institute of Biological Engineering and Health, Jiangmen, P.R. China
| | - Songgui He
- Guangdong Jiujiang Distillery Co., Ltd, Foshan, P.R. China
| | - Jingyi Guan
- Guangdong Jiujiang Distillery Co., Ltd, Foshan, P.R. China
| | - Zhaoxing Feng
- Guangdong Jiujiang Distillery Co., Ltd, Foshan, P.R. China
| | - Zhenqiang Wu
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
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7
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Hernández-Cruz E, Eugenio-Pérez D, Ramírez-Magaña KJ, Pedraza-Chaverri J. Effects of Vegetal Extracts and Metabolites against Oxidative Stress and Associated Diseases: Studies in Caenorhabditis elegans. ACS OMEGA 2023; 8:8936-8959. [PMID: 36936291 PMCID: PMC10018526 DOI: 10.1021/acsomega.2c07025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Oxidative stress is a natural physiological process where the levels of oxidants, such as reactive oxygen species (ROS) and nitrogen (RNS), exceed the strategy of antioxidant defenses, culminating in the interruption of redox signaling and control. Oxidative stress is associated with multiple pathologies, including premature aging, neurodegenerative diseases, obesity, diabetes, atherosclerosis, and arthritis. It is not yet clear whether oxidative stress is the cause or consequence of these diseases; however, it has been shown that using compounds with antioxidant properties, particularly compounds of natural origin, could prevent or slow down the progress of different pathologies. Within this context, the Caenorhabditis elegans (C. elegans) model has served to study the effect of different metabolites and natural compounds, which has helped to decipher molecular targets and the effect of these compounds on premature aging and some diseases such as neurodegenerative diseases and dyslipidemia. This article lists the studies carried out on C. elegans in which metabolites and natural extracts have been tested against oxidative stress and the pathologies associated with providing an overview of the discoveries in the redox area made with this nematode.
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Affiliation(s)
- Estefani
Yaquelin Hernández-Cruz
- Department
of Biology, Faculty of Chemistry, National
Autonomous University of Mexico, Ciudad Universitaria, 04510 Mexico City, Mexico
- Postgraduate
in Biological Sciences, National Autonomous
University of Mexico, Ciudad Universitaria, 04510 Mexico City, Mexico
| | - Dianelena Eugenio-Pérez
- Department
of Biology, Faculty of Chemistry, National
Autonomous University of Mexico, Ciudad Universitaria, 04510 Mexico City, Mexico
- Postgraduate
in Biochemical Sciences, National Autonomous
University of Mexico, Ciudad Universitaria, 04510 Mexico City, Mexico
| | - Karla Jaqueline Ramírez-Magaña
- Department
of Biology, Faculty of Chemistry, National
Autonomous University of Mexico, Ciudad Universitaria, 04510 Mexico City, Mexico
- Postgraduate
in Biochemical Sciences, National Autonomous
University of Mexico, Ciudad Universitaria, 04510 Mexico City, Mexico
| | - José Pedraza-Chaverri
- Department
of Biology, Faculty of Chemistry, National
Autonomous University of Mexico, Ciudad Universitaria, 04510 Mexico City, Mexico
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Vinoth Kumar P, Shobika M, Roopan SM, Madhumitha G. A mini review: Recent progress in light-mediated synthesis of carbon–carbon bonded stilbene analogues. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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9
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Doraghi F, Yousefnejad F, Farzipour S, Aledavoud SP, Larijani B, Mahdavi M. Recent advances in synthesis of stilbene derivatives via cross-coupling reaction. Org Biomol Chem 2023; 21:1846-1861. [PMID: 36752124 DOI: 10.1039/d2ob01982e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The stilbenes are undoubtedly some of the most significant moieties in various bioactive natural and synthetic structures, and they are considered privileged structures. In recent years, the preparation of these structures via cross-coupling reactions has attracted much attention. In the current review, we present a summary of the recent developments in the construction of stilbene and stilbene derivatives by carbon-carbon coupling reactions of organic compounds in the presence of transition metal catalysts or under metal-free conditions. In this context, we outline the features of the important reactions, some product yields, and challenging reaction mechanisms.
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Affiliation(s)
- Fatemeh Doraghi
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Faeze Yousefnejad
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Soghra Farzipour
- Department of radiopharmaceutical, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran
| | | | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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2,3,5,4′-Tetrahydroxy stilbene-2-Ο-β-D-glucoside, a mechanism-based inactivator of CYP2C19 and CYP3A4, potentiates hepatic protein adduction and hepatotoxicity induced by emodin in vivo. Chem Biol Interact 2022; 368:110234. [DOI: 10.1016/j.cbi.2022.110234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/03/2022] [Accepted: 10/21/2022] [Indexed: 11/05/2022]
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11
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Synthesis and Study of Dibenzo[b, f]oxepine Combined with Fluoroazobenzenes—New Photoswitches for Application in Biological Systems. Molecules 2022; 27:molecules27185836. [PMID: 36144571 PMCID: PMC9504382 DOI: 10.3390/molecules27185836] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 11/19/2022] Open
Abstract
Dibenzo[b, f]oxepine derivatives are an important scaffold in natural, medicinal chemistry, and these derivatives occur in several medicinally relevant plants. Two dibenzo[b, f]oxepines were selected and connected with appropriate fluorine azobenzenes. In the next step, the geometry of E/Z isomers was analyzed using density functional theory (DFT) calculations. Then the energies of the HOMO and LUMO orbitals were calculated for the E/Z isomers to determine the HOMO-LUMO gap. Next, modeling of the interaction between the obtained isomers of the compounds and the colchicine α and β-tubulin binding site was performed. The investigated isomers interact with the colchicine binding site in tubulin with a part of the dibenzo[b, f]oxepine or in a part of the azo switch, or both at the same time. Based on the UV-VIS spectra, it was found that in the case of compounds with an azo bond in the meta position, the absorption bands n→π* for both geometric isomers and their separation from π→π* are visible. These derivatives therefore have the potential to be used in photopharmacology.
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12
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Xue G, Meng N, Zhao Y, Zhang R, Yang J, Chen Z, Zhang M, Chai X. The qualitative and quantitative profiling for quality assessment of Yinxing Mihuan Oral Solution and the stability study on the focused flavonol glycosides. J Pharm Biomed Anal 2022; 219:114937. [PMID: 35853261 DOI: 10.1016/j.jpba.2022.114937] [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: 01/25/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 10/17/2022]
Abstract
Yinxing Mihuan Oral Solution (YMOS) has been widely applied for the treatment of coronary heart disease, angina pectoris, and cerebral ischemic disease in clinical practice. Nonetheless, the limited basic researches on quality analysis of YMOS remain a critical bottleneck that needs to be enhanced for better clinical applications. In this study, a total of 67 chemical components, including flavonoids, terpene lactones, nucleosides, etc., were tentatively characterized by ultra-high performance liquid chromatography tandem Q-Exactive Orbitrap high-resolution mass spectrometry, among which 34 compounds were further identified by comparison with reference substances. By adopting a methodologically validated method, we discovered that the quantitative estimate of multi-compounds in 22 batches of YMOS showed lot-to-lot consistency, and the additives in YMOS also met the corresponding regulations. Furthermore, five flavonol glycosides whose content presented a downward trend in the expired YMOS were focused. A systematic research on stability test focusing on the five targeted flavonol glycosides was performed under different temperatures and pH levels. It was found that ortho-diphenolic hydroxyl group on B-ring and the type of saccharide connected to 3-hydroxyl on C-ring play a pivotal role in the stability of the tested compounds. Subsequently, as the important compounds, ginkgolides A, B, and C in YMOS were simultaneously quantified with ultra performance liquid chromatography coupled with triple quadrupole mass spectrometry. In brief, this study performs a reliable chemical identification and provides a rapid and feasible method for the quality evaluation, which contributes to the in-depth investigation and safe application of YMOS for clinical uses.
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Affiliation(s)
- Gen Xue
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ning Meng
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yuting Zhao
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ruihu Zhang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jing Yang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zhiyong Chen
- Tianjin Beichen Traditional Chinese Medicine Hospital, Tianjin 300232, China
| | - Min Zhang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Xin Chai
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
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13
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Khodabakhshi MR, Baghersad MH. Magnetic UiO-66 functionalized with 4,4'-diamino-2,2'-stilbenedisulfonic as a highly recoverable acid catalyst for the synthesis of 4H-chromenes in green solvent. Sci Rep 2022; 12:5531. [PMID: 35365714 PMCID: PMC8975882 DOI: 10.1038/s41598-022-09337-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 03/14/2022] [Indexed: 11/09/2022] Open
Abstract
According to 4H-chromenes importance, we synthesized a novel magnetic UiO-66 functionalized with 4,4′-diamino-2,2′-stilbenedisulfonic as an efficient and reusable solid acid catalyst for synthesizing 4H-chromene skeletons via a one-pot three components reaction in a green solvent. The structure of the synthesized catalyst was confirmed by various techniques including FT-IR, XRD, BET, TGA, TEM, EDX, and SEM, and also the product yields were obtained in 83–96% of yields for all the reactions and under mild conditions. The reported procedure presents an environmentally friendly approach for synthesizing a significant number of 4H-chromene derivatives. Correspondingly, MOF-based catalyst makes it easy to separate from reaction media and reuse in the next runs.
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Affiliation(s)
| | - Mohammad Hadi Baghersad
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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Tobiasz P, Borys F, Borecka M, Krawczyk H. Synthesis and Investigations of Building Blocks with Dibenzo[ b, f] Oxepine for Use in Photopharmacology. Int J Mol Sci 2021; 22:11033. [PMID: 34681697 PMCID: PMC8539288 DOI: 10.3390/ijms222011033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 01/18/2023] Open
Abstract
The synthesis of photoswitchable azo-dibenzo[b,f]oxepine derivatives and microtubule inhibitors were described. Subsequently, we examined the reaction of methoxy derivative 3-nitrodibenzo[b,f]oxepine with different aldehydes and in the presence of BF3·OEt2 as a catalyst. Our study provided a very concise method for the construction of the azo-dibenzo[b,f]oxepine skeleton. The analysis of products was run using experimental and theoretical methods. Next, we evaluated the E/Z isomerization of azo-dibenzo[b,f]oxepine derivatives, which could be photochemically controlled using visible-wavelength light.
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Affiliation(s)
- Piotr Tobiasz
- Department of Organic Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (P.T.); (F.B.); (M.B.)
| | - Filip Borys
- Department of Organic Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (P.T.); (F.B.); (M.B.)
- Laboratory of Cytoskeleton and Cilia Biology, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 3 Pasteur Street, 02-093 Warsaw, Poland
| | - Marta Borecka
- Department of Organic Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (P.T.); (F.B.); (M.B.)
| | - Hanna Krawczyk
- Department of Organic Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (P.T.); (F.B.); (M.B.)
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15
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Ganguly S, Arora I, Tollefsbol TO. Impact of Stilbenes as Epigenetic Modulators of Breast Cancer Risk and Associated Biomarkers. Int J Mol Sci 2021; 22:ijms221810033. [PMID: 34576196 PMCID: PMC8472542 DOI: 10.3390/ijms221810033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/12/2021] [Accepted: 09/13/2021] [Indexed: 12/12/2022] Open
Abstract
With the recent advancement of genetic screening for testing susceptibility to mammary oncogenesis in women, the relevance of the gene−environment interaction has become progressively apparent in the context of aberrant gene expressions. Fetal exposure to external stressors, hormones, and nutrients, along with the inherited genome, impact its traits, including cancer susceptibility. Currently, there is increasing interest in the role of epigenetic biomarkers such as genomic methylation signatures, plasma microRNAs, and alterations in cell-signaling pathways in the diagnosis and primary prevention of breast cancer, as well as its prognosis. Polyphenols like natural stilbenes have been shown to be effective in chemoprevention by exerting cytotoxic effects that can stall cell proliferation. Besides possessing antioxidant properties against the DNA-damaging effects of reactive oxygen species, stilbenes have also been observed to modulate cell-signaling pathways. With the increasing trend of early-life screening for hereditary breast cancer risks, the potency of different phytochemicals in harnessing the epigenetic biomarkers of breast cancer risk demand more investigation. This review will explore means of exploiting the abilities of stilbenes in altering the underlying factors that influence breast cancer risk, as well as the appearance of associated biomarkers.
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Affiliation(s)
- Sebanti Ganguly
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (S.G.); (I.A.)
| | - Itika Arora
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (S.G.); (I.A.)
| | - Trygve O. Tollefsbol
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA; (S.G.); (I.A.)
- Integrative Center for Aging Research, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Cell Senescence Culture Facility, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Correspondence: ; Tel.: +1-205-934-4573
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Loh YC, Chan SY, Oo CW, Yam MF. Discovery of trans-3,4,4'-trihydroxystilbene as new lead vasorelaxant agent for antihypertensive drug development. Life Sci 2021; 278:119560. [PMID: 33915131 DOI: 10.1016/j.lfs.2021.119560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/08/2021] [Accepted: 04/22/2021] [Indexed: 11/23/2022]
Abstract
AIMS The structure-vasorelaxant activity relationships (SARs) assessment in previous study has found that trans-3,4,4'-trihydroxystilbene (344OH) could potentially act as a vasorelaxing agent with demonstration of over 2-fold maximal relaxation (Rmax) compared to its analogue, resveratrol. The present study focuses on the mechanism of actions and pathways employed by 344OH and compared to its analogue to further speculate the SAR of stilbenoids towards vasorelaxation. MATERIALS AND METHODS The 344OH employed in present study was synthesized based on the protocol in previous study. The vascular responses towards the cumulative addition of 344OH were evaluated using in vitro rat aortic rings assays. KEY FINDINGS The pEC50 and Rmax values were found to be 4.33 ± 0.05 and 106 ± 3.99%, respectively. Results showed that the vasorelaxation of 344OH were predominated by G-protein-coupled muscarinic- (M3) and β2-adrenergic receptors, followed by PGI2/AC/cAMP- and NO/sGC/cGMP-dependent pathways. It was also identified that 344OH employed voltage-activated- (Kv), calcium-activated- (Kca) and inwardly-rectifying (Kir) potassium channels and act as an antagonist for both VOCC and IP3R while regulating the action potential in the vasculature. SIGNIFICANCE The different position of hydroxyl substituent located in A-ring of the stilbenoid backbone in 344OH compared to resveratrol resulted in a significant difference in mechanistic actions that lead to 344OH's fast-acting and less time-dependent vasorelaxation behaviour. This has substantially increased the potential of 344OH to be developed as an effective antihypertensive drug in future. Present findings further strengthen our inferences where the SARs study approach should be carried out as the mainstream methodology in future drug development research.
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Affiliation(s)
- Yean Chun Loh
- Department of Organic Chemistry, School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Sock Ying Chan
- Department of Organic Chemistry, School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Chuan Wei Oo
- Department of Organic Chemistry, School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
| | - Mun Fei Yam
- Department of Pharmacology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia; College of Pharmacy, Fujian University of Traditional Chinese Medicine, 1 Qiuyanng Road, Shangjie, Minhou, Fuzhou 350122, Fujian, China.
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Melo SJ, Sousa JPB, Sá MG, Morais LS, Magalhães NM, Gouveia FN, Albernaz LC, Espindola LS. Machaerium acutifolium compounds with larvicidal activity against Aedes aegypti. PEST MANAGEMENT SCIENCE 2021; 77:1444-1451. [PMID: 33128432 DOI: 10.1002/ps.6163] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/11/2020] [Accepted: 10/31/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Plant extracts and isolated compounds are known for their insecticidal activity. The Aedes aegypti mosquito has a significant medical impact as it transmits a number of arboviruses and is able to develop resistance to the commercially available insecticides. This study investigates larvicidal compounds isolated from Machaerium acutifolium, designated by the Brazilian Forest Service as a sustainable species. RESULTS A M. acutifolium trunk ethyl acetate extract was fractionated using chromatographic methods with full structural elucidation by mass spectrometry (MS), nuclear magnetic resonance and specific rotation analyses revealing: one new 3-arylcoumarin derivative 1; two flavonoids 2 and 3; a trans-stilbene 4, and an unprecedented natural indene 5. The larvicidal activity against Ae. aegypti after 24 h exposure was: crude extract (median lethal dose, LC50 205 mg L-1 ), fraction C (LC50 27 mg L-1 ) and 5 (LC50 24 mg L-1 ). CONCLUSION A M. acutifolium extract showed larvicidal activity, which increased with prolonged exposure, demonstrating LC50 75 mg L-1 after 72 h. Although the flavonoids 2 and 3 and trans-stilbene 4 were deemed inactive according to the adopted mortality limit, additional tests revealed their ability to cause 65% Ae. aegypti larvae mortality, suggesting they could contribute to the larvicidal activity. Compound 5, identified by liquid chromatography-MS, was over eight-fold more toxic to larvae than the crude extract after 24 h. Therefore, 5 constitutes a structural model for new prototypes to control Ae. aegypti. These data reinforce the potential of natural products as a source of commercial alternatives for vector control strategies, respecting both sustainability and eco-friendly principles. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Sebastião J Melo
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - João Paulo B Sousa
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - Maíra G Sá
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - Laís S Morais
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - Natália Mg Magalhães
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - Fernando N Gouveia
- Laboratório de Produtos Florestais, Serviço Florestal Brasileiro, Brasília, Brazil
| | - Lorena C Albernaz
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
| | - Laila S Espindola
- Laboratório de Farmacognosia, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, Brazil
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Rani A, Saini KC, Bast F, Mehariya S, Bhatia SK, Lavecchia R, Zuorro A. Microorganisms: A Potential Source of Bioactive Molecules for Antioxidant Applications. Molecules 2021; 26:molecules26041142. [PMID: 33672774 PMCID: PMC7924645 DOI: 10.3390/molecules26041142] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/08/2021] [Accepted: 02/16/2021] [Indexed: 12/17/2022] Open
Abstract
Oxidative stress originates from an elevated intracellular level of free oxygen radicals that cause lipid peroxidation, protein denaturation, DNA hydroxylation, and apoptosis, ultimately impairing cell viability. Antioxidants scavenge free radicals and reduce oxidative stress, which further helps to prevent cellular damage. Medicinal plants, fruits, and spices are the primary sources of antioxidants from time immemorial. In contrast to plants, microorganisms can be used as a source of antioxidants with the advantage of fast growth under controlled conditions. Further, microbe-based antioxidants are nontoxic, noncarcinogenic, and biodegradable as compared to synthetic antioxidants. The present review aims to summarize the current state of the research on the antioxidant activity of microorganisms including actinomycetes, bacteria, fungi, protozoa, microalgae, and yeast, which produce a variety of antioxidant compounds, i.e., carotenoids, polyphenols, vitamins, and sterol, etc. Special emphasis is given to the mechanisms and signaling pathways followed by antioxidants to scavenge Reactive Oxygen Species (ROS), especially for those antioxidant compounds that have been scarcely investigated so far.
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Affiliation(s)
- Alka Rani
- Department of Botany, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, Punjab 151401, India; (A.R.); (K.C.S.); (F.B.)
| | - Khem Chand Saini
- Department of Botany, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, Punjab 151401, India; (A.R.); (K.C.S.); (F.B.)
| | - Felix Bast
- Department of Botany, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, Punjab 151401, India; (A.R.); (K.C.S.); (F.B.)
| | - Sanjeet Mehariya
- Department of Chemical Engineering, Materials and Environment, Sapienza University of Rome, 00184 Rome, Italy;
- Correspondence: (S.M.); (A.Z.); Tel.: +39-347-494-0910 (S.M.); +39-06-4458-5598 (A.Z.)
| | - Shashi Kant Bhatia
- Department of Biological Engineering, College of Engineering, Konkuk University, Seoul 05029, Korea;
| | - Roberto Lavecchia
- Department of Chemical Engineering, Materials and Environment, Sapienza University of Rome, 00184 Rome, Italy;
| | - Antonio Zuorro
- Department of Chemical Engineering, Materials and Environment, Sapienza University of Rome, 00184 Rome, Italy;
- Correspondence: (S.M.); (A.Z.); Tel.: +39-347-494-0910 (S.M.); +39-06-4458-5598 (A.Z.)
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Medrano-Padial C, Prieto AI, Puerto M, Pichardo S. In vitro assessment of the mutagenic and genotoxic potential of a pure stilbene extract. Food Chem Toxicol 2021; 150:112065. [PMID: 33596453 DOI: 10.1016/j.fct.2021.112065] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 01/28/2021] [Accepted: 02/10/2021] [Indexed: 02/06/2023]
Abstract
Stilbenes are secondary metabolites of great interest produced by many plant species due to their important bioactive properties. These phytochemicals have become of increasing interest in the wine industry as a natural alternative to sulphur dioxide, which has been associated with human health risks. However, there is still little toxicological information on stilbenes and the results thus far have been contradictory. Considering the key role of genotoxicity in risk assessment and the need to offer safe products in the market, the aim of this study was to assess the mutagenic and genotoxic potential of a stilbene extract with 99% purity (ST-99 extract). A complete series of different in vitro tests (Ames test, micronucleus (MN) test, and standard and enzyme-modified comet assays) was performed before its use as a preservative in wines. The ST-99 extract induces a significant increase of binucleated cells with micronuclei only in presence of the metabolic fraction S9 at the highest concentration assayed. Neither the Ames test nor the comet assay revealed the extract's genotoxic potential. Further studies are necessary, including in vivo assays, to ensure consumer safety before it can be used.
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Affiliation(s)
- C Medrano-Padial
- Area of Toxicology, School of Pharmacy, Universidad de Sevilla, Profesor García González nº2, 41012, Seville, Spain
| | - A I Prieto
- Area of Toxicology, School of Pharmacy, Universidad de Sevilla, Profesor García González nº2, 41012, Seville, Spain.
| | - M Puerto
- Area of Toxicology, School of Pharmacy, Universidad de Sevilla, Profesor García González nº2, 41012, Seville, Spain
| | - S Pichardo
- Area of Toxicology, School of Pharmacy, Universidad de Sevilla, Profesor García González nº2, 41012, Seville, Spain
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Menon S, Krishnan A, Jose T, Roy S. UV-responsive glycosomes as frameworks for FRET: The quest for bio-inspired energy transfer systems. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.112927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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21
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Akuru EA, Oyeagu CE, Mpendulo TC, Rautenbach F, Oguntibeju OO. Effect of pomegranate ( Punica granatum L) peel powder meal dietary supplementation on antioxidant status and quality of breast meat in broilers. Heliyon 2020; 6:e05709. [PMID: 33364487 PMCID: PMC7750561 DOI: 10.1016/j.heliyon.2020.e05709] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/28/2020] [Accepted: 12/09/2020] [Indexed: 12/20/2022] Open
Abstract
This study examined the antioxidant status and quality of breast meat in broiler birds fed diets supplemented with pomegranate peel powder meal (PPPM). During the 35-d feeding trial, broiler birds were fed six experimental diets: diet with 0% additives (negative control; NEGCON); diet with α-Tocopherol acetate at 200 g/tonne (positive control; POSCON); and four levels (2, 4, 6 and 8 g/kg) of PPPM, designated as PPPM2, PPPM4, PPPM6, and PPPM8. Breast muscle pH was determined 15mins and 24hrs postmortem. The breast muscles were then stored at 4 °C to determine shelf-life attributes (pH, colour, hue angle, and chroma) for 16 days. Meat from the 8 g/kg PPPM had the highest thawing loss, whereas cooking loss was lowest at 2 g/kg PPPM inclusion. The meat of birds fed 2 g/kg and 4 g/kg PPPM had the highest (P<0.05) ability to scavenge the ABTS [(2, 2-azinobis (3ethylbenzothiazoline-6 sulfonic acid))] radical cation (ABTS+), whereas, catalase activity was increased at 8 g/kg PPPM. The results obtained in this study indicate that 2 g/kg supplementation of pomegranate peel powder meal significantly improved the water-binding capacity of broiler breast meat, owing to the reduced cooking loss of the meat, and meat from the PPPM2 (2 g/kg) group had the highest ability to scavenge ABTS.
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Affiliation(s)
- Eunice A Akuru
- Department of Livestock and Pasture Science, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa.,Department of Animal Science, University of Nigeria, Nsukka, 410001, Nigeria
| | - Chika E Oyeagu
- Department of Livestock and Pasture Science, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa.,Department of Agriculture, Faculty of Applied Sciences, Cape Peninsula University of Technology, Wellington Campus, Private Bag X8, Wellington, 7654, Western Cape, South Africa
| | - Thando C Mpendulo
- Department of Livestock and Pasture Science, University of Fort Hare, Private Bag X1314, Alice, 5700, Eastern Cape, South Africa
| | - Fanie Rautenbach
- Oxidative Stress Research Centre, Department of Biomedical Sciences, Cape Peninsula University of Technology, P.O. Box 1906, Bellville, 7535, South Africa
| | - Oluwafemi O Oguntibeju
- Oxidative Stress Research Centre, Department of Biomedical Sciences, Cape Peninsula University of Technology, P.O. Box 1906, Bellville, 7535, South Africa
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Borys F, Tobiasz P, Poterała M, Krawczyk H. Development of novel derivatives of stilbene and macrocyclic compounds as potent of anti-microtubule factors. Biomed Pharmacother 2020; 133:110973. [PMID: 33378993 DOI: 10.1016/j.biopha.2020.110973] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/27/2020] [Accepted: 11/01/2020] [Indexed: 11/24/2022] Open
Abstract
Microtubules (composed of α- and β-tubulin heterodimers) ubiquitous cellular polymers are important components of the cytoskeleton and play diverse roles within the cell, such as maintenance of cell structure, protein trafficking or chromosomal segregation during cell division. The polymers of tubulin play a pivotal role in mitosis and are regarded as an excellent target for chemotherapeutic agents to treat cancer. This review presents a brief overview of the synthesis and mechanism of action of new compounds targeting the dynamic of microtubule - tubulin polymerization/depolymerization. It is divided into the following parts: section I concerns targeting microtubules- tubulin-binding drugs derivatives of stilbene. In section II there are presented photoswitchable inhibitors of microtubule dynamics. Section III concerns using macrocyclic compounds as tubulin inhibitors. In this review, the authors focused primarily on reports produced inthe last five years and the latest strategies in this field.
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Affiliation(s)
- Filip Borys
- Department of Organic Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland; The Nencki Institute of Experimental Biology Polish Academy of Sciences, Poland
| | - Piotr Tobiasz
- Department of Organic Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Marcin Poterała
- Department of Organic Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland
| | - Hanna Krawczyk
- Department of Organic Chemistry, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664, Warsaw, Poland.
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Aliaño-González MJ, Richard T, Cantos-Villar E. Grapevine Cane Extracts: Raw Plant Material, Extraction Methods, Quantification, and Applications. Biomolecules 2020; 10:E1195. [PMID: 32824592 PMCID: PMC7464460 DOI: 10.3390/biom10081195] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 12/18/2022] Open
Abstract
Grapevine canes are viticulture waste that is usually discarded without any further use. However, recent studies have shown that they contain significant concentrations of health-promoting compounds, such as stilbenes, secondary metabolites of plants produced as a response to biotic and abiotic stress from fungal disease or dryness. Stilbenes have been associated with antioxidant, anti-inflammatory, and anti-microbial properties and they have been tested as potential treatments of cardiovascular and neurological diseases, and even cancer, with promising results. Stilbenes have been described in the different genus of the Vitaceae family, the Vitis genera being one of the most widely studied due to its important applications and economic impact around the world. This review presents an in-depth study of the composition and concentration of stilbenes in grapevine canes. The results show that the concentration of stilbenes in grapevine canes is highly influenced by the Vitis genus and cultivar aspects (growing conditions, ultraviolet radiation, fungal attack, etc.). Different methods for extracting stilbenes from grapevine canes have been reviewed, and the extraction conditions have also been studied, underlining the advantages and disadvantages of each technique. After the stilbenes were extracted, they were analyzed to determine the stilbene composition and concentration. Analytical techniques have been employed with this aim, in most cases using liquid chromatography, coupled with others such as mass spectrometry and/or nuclear magnetic resonance to achieve the individual quantification. Finally, stilbene extracts may be applied in multiple fields based on their properties. The five most relevant are preservative, antifungal, insecticide, and biostimulant applications. The current state-of-the-art of the above applications and their prospects are discussed.
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Affiliation(s)
- María José Aliaño-González
- Instituto de Investigación y Formación Agraria y Pesquera (IFAPA), Consejería de Agricultura, Ganadería, Pesca y Desarrollo Sostenible, Rancho de la Merced, Ctra. Cañada de la Loba, CA-3102 km 3.1, 11471 Jerez de la Frontera, Spain;
| | - Tristan Richard
- Université de Bordeaux, ISVV, EA 3675 Groupe d’Etude des Substances Végétales à Activité Biologique, 33882 Villenave d’Ornon, France;
| | - Emma Cantos-Villar
- Instituto de Investigación y Formación Agraria y Pesquera (IFAPA), Consejería de Agricultura, Ganadería, Pesca y Desarrollo Sostenible, Rancho de la Merced, Ctra. Cañada de la Loba, CA-3102 km 3.1, 11471 Jerez de la Frontera, Spain;
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25
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Antioxidants and antioxidant methods: an updated overview. Arch Toxicol 2020; 94:651-715. [PMID: 32180036 DOI: 10.1007/s00204-020-02689-3] [Citation(s) in RCA: 726] [Impact Index Per Article: 181.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 02/24/2020] [Indexed: 02/07/2023]
Abstract
Antioxidants had a growing interest owing to their protective roles in food and pharmaceutical products against oxidative deterioration and in the body and against oxidative stress-mediated pathological processes. Screening of antioxidant properties of plants and plant-derived compounds requires appropriate methods, which address the mechanism of antioxidant activity and focus on the kinetics of the reactions including the antioxidants. Many studies evaluating the antioxidant activity of various samples of research interest using different methods in food and human health have been conducted. These methods are classified, described, and discussed in this review. Methods based on inhibited autoxidation are the most suited for termination-enhancing antioxidants and for chain-breaking antioxidants, while different specific studies are needed for preventive antioxidants. For this purpose, the most common methods used in vitro determination of antioxidant capacity of food constituents were examined. Also, a selection of chemical testing methods was critically reviewed and highlighted. In addition, their advantages, disadvantages, limitations and usefulness were discussed and investigated for pure molecules and raw extracts. The effect and influence of the reaction medium on the performance of antioxidants are also addressed. Hence, this overview provides a basis and rationale for developing standardized antioxidant methods for the food, nutraceuticals, and dietary supplement industries. In addition, the most important advantages and shortcomings of each method were detected and highlighted. The chemical principles of these methods are outlined and critically discussed. The chemical principles of methods of 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulphonate) radical (ABTS·+) scavenging, 1,1-diphenyl-2-picrylhydrazyl (DPPH·) radical scavenging, Fe3+-Fe2+ transformation assay, ferric reducing antioxidant power (FRAP) assay, cupric ions (Cu2+) reducing power assay (Cuprac), Folin-Ciocalteu reducing capacity (FCR assay), peroxyl radical (ROO·), superoxide radical anion (O2·-), hydrogen peroxide (H2O2) scavenging assay, hydroxyl radical (OH·) scavenging assay, singlet oxygen (1O2) quenching assay, nitric oxide radical (NO·) scavenging assay and chemiluminescence assay are outlined and critically discussed. Also, the general antioxidant aspects of main food components were discussed by a number of methods, which are currently used for the detection of antioxidant properties of food components. This review consists of two main sections. The first section is devoted to the main components in the food and pharmaceutical applications. The second general section comprises some definitions of the main antioxidant methods commonly used for the determination of the antioxidant activity of components. In addition, some chemical, mechanistic and kinetic basis, and technical details of the used methods are given.
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