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Xie L, Yuan Y, Yang F, Jiang H, Yang F, Yang C, Yu Z. Comparative analysis of antioxidant activities and chemical compositions in the extracts of different edible parts from Camellia tetracocca Zhang ( C. tetracocca) with two distinct color characteristics. Food Chem X 2024; 22:101496. [PMID: 38817977 PMCID: PMC11137522 DOI: 10.1016/j.fochx.2024.101496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/17/2024] [Accepted: 05/17/2024] [Indexed: 06/01/2024] Open
Abstract
The Camellia tetracocca Zhang is a rare and ancient plant, exclusively found in the vicinity of Puan County, Guizhou Province, China. According to leaf color, two distinct variations have been identified: purple C. tetracocca Zhang (PCTZ) and green C. tetracocca (GCTZ). This research was conducted to investigate the antioxidant activities and chemical compositions of different edible parts of PCTZ and GCTZ. Antioxidant activity was evaluated using DPPH, ABTS, HSA, and T-AOC assays, while the content of compounds was determined by HPLC. The findings demonstrated that the antioxidant capacity of PCTZ leaves is significantly superior to that of GCTZ leaves. Notably, theacrine, a rare compound, contains up to 2.075% in PCTZ leaves, indicating potential as a novel natural antidepressant and antioxidant. In conclusion, PCTZ is a distinctive tea beverage and a valuable genetic material for tea tree breeding due to its high theacrine and low caffeine characteristics.
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Affiliation(s)
| | | | - Feijiao Yang
- School of Life Science, Guizhou Normal University, Guiyang 550025, China
| | - Huqin Jiang
- School of Life Science, Guizhou Normal University, Guiyang 550025, China
| | - Feng Yang
- School of Life Science, Guizhou Normal University, Guiyang 550025, China
| | - Chenju Yang
- School of Life Science, Guizhou Normal University, Guiyang 550025, China
| | - Zhengwen Yu
- School of Life Science, Guizhou Normal University, Guiyang 550025, China
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Babijczuk K, Berdzik N, Nowak D, Warżajtis B, Rychlewska U, Starzyk J, Mrówczyńska L, Jasiewicz B. Novel C3-Methylene-Bridged Indole Derivatives with and without Substituents at N1: The Influence of Substituents on Their Hemolytic, Cytoprotective, and Antimicrobial Activity. Int J Mol Sci 2024; 25:5364. [PMID: 38791402 PMCID: PMC11121452 DOI: 10.3390/ijms25105364] [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: 04/15/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Alkaloids are natural compounds useful as scaffolds for discovering new bioactive molecules. This study utilized alkaloid gramine to synthesize two groups of C3-substituted indole derivatives, which were either functionalized at N1 or not. The compounds were characterized by spectroscopic methods. The protective effects of the new compounds against in vitro oxidative hemolysis induced by standard oxidant 2,2'-azobis(2-amidinopropane dihydro chloride (AAPH) on human erythrocytes as a cell model were investigated. Additionally, the compounds were screened for antimicrobial activity. The results indicated that most of the indole derivatives devoid of the N1 substitution exhibited strong cytoprotective properties. The docking studies supported the affinities of selected indole-based ligands as potential antioxidants. Furthermore, the derivatives obtained exhibited potent fungicidal properties. The structures of the eight derivatives possessing indole moiety bridged to the imidazole-, benzimidazole-, thiazole-, benzothiazole-, and 5-methylbenzothiazoline-2-thiones were determined by X-ray diffraction. The C=S bond lengths in the thioamide fragment pointed to the involvement of zwitterionic structures of varying contribution. The predominance of zwitterionic mesomers may explain the lack of cytoprotective properties, while steric effects, which limit multiple the hydrogen-bond acceptor properties of a thione sulfur, seem to be responsible for the high hemolytic activity.
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Affiliation(s)
- Karolina Babijczuk
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (K.B.); (N.B.)
| | - Natalia Berdzik
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (K.B.); (N.B.)
| | - Damian Nowak
- Department of Quantum Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland;
| | - Beata Warżajtis
- Department of Crystallography, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (B.W.); (U.R.)
| | - Urszula Rychlewska
- Department of Crystallography, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (B.W.); (U.R.)
| | - Justyna Starzyk
- Department of Soil Science and Microbiology, Faculty of Agronomy, Horticulture, and Bioengineering, University of Life Science, Szydłowska 50, 60-656 Poznań, Poland;
| | - Lucyna Mrówczyńska
- Department of Cell Biology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland;
| | - Beata Jasiewicz
- Department of Bioactive Products, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (K.B.); (N.B.)
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Hellenbrand J, Bloomer RJ, Van der Merwe M. The Effect of Short-Term NAD3® Supplementation on Circulating Adult Stem Cells in Healthy Individuals Aged 40-70 Years. Cureus 2024; 16:e55661. [PMID: 38590496 PMCID: PMC11000032 DOI: 10.7759/cureus.55661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/05/2024] [Indexed: 04/10/2024] Open
Abstract
Objective This study aimed to assess the impact of acute and short-term supplementation with NAD3®, a theacrine-containing supplement, on circulating adult stem cell numbers in a healthy male and female population aged 40-70 years. Methods This was a double-blind, placebo-controlled crossover study with 12 participants randomized to receive either NAD3® or a placebo for seven days. Blood samples were collected after an overnight fast, before and after the seven-day supplementation period, and one and two hours after the final supplement dose. Using flow cytometry, circulating stem cells, including lymphocytoid CD34+ stem cells (CD45dimCD34+), stem cells associated with vascular maintenance and repair (CD45dimCD34+CD309+), CD34+ stem cells linked to a progenitor phenotype (CD45dimCD34+CD309neg), circulating endothelial stem cells (CD45negCD31+CD309+), and mesenchymal stem cells (CD45negCD90+) were quantified. Results Acute NAD3® supplementation did not result in the mobilization of stem cells from the bone marrow. However, seven days of daily NAD3® supplementation resulted in selective changes in circulating stem cell numbers. A significant time*treatment interaction was observed for CD45dimCD34+ cells (p=0.04) and CD45dimCD34+CD309neg cells (p=0.04), indicating a decrease in cell numbers with supplementation. There was also a trend toward an increase in circulating endothelial cells (p=0.08) with seven days of NAD3®supplementation. Conclusion Short-term NAD3® supplementation demonstrated an effect on the quantity of bone marrow-derived stem cells in circulation. The study suggests that this theacrine-containing supplement may play a role in modulating adult stem cell populations, emphasizing the potential impact of NAD3® on regenerative processes. Further research with extended supplementation periods and larger sample sizes is warranted to elucidate the functional consequences of these changes and explore the therapeutic implications for age-related declines in stem cell function.
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Xie CH, Huang SX, Li JF, Luo ZH, Huang GF, Yan BB, Fan HX, Zheng JX, Zhou ZQ, Gao H. Two new meroterpenoids from the bark of Cinnamomum cassia and their antioxidant activity. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2023; 25:1051-1057. [PMID: 37010914 DOI: 10.1080/10286020.2023.2193334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
Two new (1 and 2) meroterpenoids were isolated from the bark of Cinnamomum cassia. Their structures were determined by spectroscopic analyses and chemical methods. Antioxidant activities of 1 and 2 were evaluated by the ORAC and DPPH radical scavenging assays, and the results revealed that compound 2 displayed oxygen radical absorbance capacity. The discovery of compounds 1 and 2 added new members of this kind of natural product.
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Affiliation(s)
- Cai-Hong Xie
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Shang-Xiong Huang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Jin-Feng Li
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhi-Hui Luo
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Geng-Feng Huang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Bing-Bing Yan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Hong-Xia Fan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Jun-Xia Zheng
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Zheng-Qun Zhou
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy/Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research/International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou 510632, China
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5
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Mannino G, Kunz R, Maffei ME. Discrimination of Green Coffee ( Coffea arabica and Coffea canephora) of Different Geographical Origin Based on Antioxidant Activity, High-Throughput Metabolomics, and DNA RFLP Fingerprinting. Antioxidants (Basel) 2023; 12:antiox12051135. [PMID: 37238001 DOI: 10.3390/antiox12051135] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/16/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023] Open
Abstract
The genus Coffea is known for the two species C. arabica (CA) and C. canephora (CC), which are used to prepare the beverage coffee. Proper identification of green beans of coffee varieties is based on phenotypic and phytochemical/molecular characteristics. In this work, a combination of chemical (UV/Vis, HPLC-DAD-MS/MS, GC-MS, and GC-FID) and molecular (PCR-RFLP) fingerprinting was used to discriminate commercial green coffee accessions from different geographical origin. The highest content of polyphenols and flavonoids was always found in CC accessions, whereas CA showed lower values. ABTS and FRAP assays showed a significant correlation between phenolic content and antioxidant activity in most CC accessions. We identified 32 different compounds, including 28 flavonoids and four N-containing compounds. The highest contents of caffeine and melatonin were detected in CC accessions, whereas the highest levels of quercetin and kaempferol derivatives were found in CA accessions. Fatty acids of CC accessions were characterized by low levels of linoleic and cis octadecenoic acid and high amounts of elaidic acid and myristic acid. Discrimination of species according to their geographical origin was achieved using high-throughput data analysis, combining all measured parameters. Lastly, PCR-RFLP analysis was instrumental for the identification of recognition markers for the majority of accessions. Using the restriction enzyme AluI on the trnL-trnF region, we clearly discriminated C. canephora from C. arabica, whereas the cleavage performed by the restriction enzymes MseI and XholI on the 5S-rRNA-NTS region produced specific discrimination patterns useful for the correct identification of the different coffee accessions. This work extends our previous studies and provides new information on the complete flavonoid profile, combining high-throughput data with DNA fingerprinting to assess the geographical discrimination of green coffee.
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Affiliation(s)
- Giuseppe Mannino
- Department of Life Sciences and Systems Biology, University of Turin, Via Quarello 15/A, 10135 Turin, Italy
| | - Ronja Kunz
- Department of Chemistry, University of Cologne, Zülpicher Straße 47, D-50939 Köln, Germany
| | - Massimo E Maffei
- Department of Life Sciences and Systems Biology, University of Turin, Via Quarello 15/A, 10135 Turin, Italy
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6
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Atpadkar PP, Gopavaram S, Chaudhary S. Natural-product-inspired bioactive alkaloids agglomerated with potential antioxidant activity: Recent advancements on structure-activity relationship studies and future perspectives. VITAMINS AND HORMONES 2023; 121:355-393. [PMID: 36707140 DOI: 10.1016/bs.vh.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Alkaloids derived from natural sources have been shown to have substantial antioxidant activity, suggesting that these natural-product-inspired bioactive entities may have major beneficial influence on human health and food processing sector. The primary process intricates in the etiology of several disorders such as neurodegenerative, inflammatory cardiovascular, and other chronic diseases appear to be either oxidative injury or a cellular damage caused by reactive oxygen species (ROS) or free-radicals. The alkaloid class of bio-heterocycles have been divided into numerous groups based on their biosynthetic precursor and heterocyclic ring systems i.e., piperidine, imidazole, purine, pyrrolizidine, indole, quinolozidine, isoquinoline, tropane, and pyrrolidine alkaloids. Distinct biological properties have been attributed to various compounds belonging to this chemical groups, including antirheumatic, cardiovascular, antispasmodic, anti-ulcer, anti-inflammatory, antibacterial, antinociceptive etc. For many years, natural products and their analogs have been recognized as a possible source of medicinal agents. Recently, research has been concentrated on the synthesis, separation/purification, and identification of new alkaloids derived from a variety of natural sources. This book chapter aims to summarize on the latest developments on the current knowledge on the relationship between the structural features of promising class of bioactive alkaloids with their antioxidant activities.
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Affiliation(s)
- Pooja Prakash Atpadkar
- Laboratory of Bioactive heterocycles and Catalysis (BHC Lab), Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Lucknow, UP, India
| | - Sumanth Gopavaram
- Laboratory of Bioactive heterocycles and Catalysis (BHC Lab), Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Lucknow, UP, India
| | - Sandeep Chaudhary
- Laboratory of Bioactive heterocycles and Catalysis (BHC Lab), Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, Lucknow, UP, India; Laboratory of Organic and Medicinal Chemistry (OMC Lab), Department of Chemistry, Malaviya National Institute of Technology, Jaipur, India.
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7
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Ma XH, Liu JHZ, Liu CY, Sun WY, Duan WJ, Wang G, Kurihara H, He RR, Li YF, Chen Y, Shang H. ALOX15-launched PUFA-phospholipids peroxidation increases the susceptibility of ferroptosis in ischemia-induced myocardial damage. Signal Transduct Target Ther 2022; 7:288. [PMID: 35970840 PMCID: PMC9378747 DOI: 10.1038/s41392-022-01090-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 06/02/2022] [Accepted: 06/26/2022] [Indexed: 12/31/2022] Open
Abstract
Myocardial ischemia/reperfusion (I/R) injury is a classic type of cardiovascular disease characterized by injury to cardiomyocytes leading to various forms of cell death. It is believed that irreversible myocardial damage resulted from I/R occurs due to oxidative stress evoked during the reperfusion phase. Here we demonstrate that ischemia triggers a specific redox reaction of polyunsaturated fatty acids (PUFA)-phospholipids in myocardial cells, which acts as a priming signaling that initiates the outbreak of robust oxidative damage in the reperfusion phase. Using animal and in vitro models, the crucial lipid species in I/R injury were identified to be oxidized PUFAs enriched phosphatidylethanolamines. Using multi-omics, arachidonic acid 15-lipoxygenase-1 (ALOX15) was identified as the primary mediator of ischemia-provoked phospholipid peroxidation, which was further confirmed using chemogenetic approaches. Collectively, our results reveal that ALOX15 induction in the ischemia phase acts as a “burning point” to ignite phospholipid oxidization into ferroptotic signals. This finding characterizes a novel molecular mechanism for myocardial ischemia injury and offers a potential therapeutic target for early intervention of I/R injury.
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Affiliation(s)
- Xiao-Hui Ma
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China.,Institute of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi, 830054, China
| | - Jiang-Han-Zi Liu
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China
| | - Chun-Yu Liu
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China
| | - Wan-Yang Sun
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China
| | - Wen-Jun Duan
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China
| | - Guan Wang
- Innovation Center of Nursing Research, Nursing Key Laboratory of Sichuan Province, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hiroshi Kurihara
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China.,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China
| | - Rong-Rong He
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China. .,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China. .,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China.
| | - Yi-Fang Li
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou, 510632, China. .,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, 510632, China. .,International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University, Guangzhou, 510632, China.
| | - Yang Chen
- College of Pharmacy, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Hongcai Shang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education, Dongzhimen Hospital, Beijing University of Chinese Medicine, 100700, Beijing, China.
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8
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Yan TC, Cao J, Ye LH. Recent advances on discovery of enzyme inhibitors from natural products using bioactivity screening. J Sep Sci 2022; 45:2766-2787. [PMID: 35593478 DOI: 10.1002/jssc.202200084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/23/2022] [Accepted: 05/12/2022] [Indexed: 11/10/2022]
Abstract
The essence of enzymes is to keep the homeostasis and balance of human by catalyzing metabolic responses and modulating cell. Suppression of enzyme slows the progress of some diseases, making it a therapeutic target. Therefore, it is important to develop enzyme inhibitors by proper bioactivity screening strategies for the future treatment of some major diseases. In this review, we summarized the recent (2015-2020) applications of several screening strategies (electrophoretically mediated microanalysis, enzyme immobilization, affinity chromatography, and affinity ultrafiltration) in finding enzyme inhibitors from certain species of bioactive natural compounds of plant origin (flavonoids, alkaloids, phenolic acids, saponins, anthraquinones, coumarins). At the same time, the advantages and disadvantages of each strategy were also discussed, and the future possible development direction in enzyme inhibitor screening has prospected. To sum up, it is expected to help readers select suitable screening strategies for enzyme inhibitors and provide useful information for the study of the biological of specific kinds of natural products. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Tian-Ci Yan
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang, 311121, China
| | - Jun Cao
- School of Pharmacy, Hangzhou Normal University, Hangzhou, Zhejiang, 311121, China.,College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Li-Hong Ye
- Department of Traditional Chinese Medicine, Hangzhou Red Cross Hospital, Hangzhou, 310003, PR China
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9
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Vilela DD, Justino AB, Caixeta DC, de Souza AV, Teixeira RR, Franco RR, Saraiva AL, Fonseca BB, Dantas NO, Silva ACA, Espindola FS. Increased selenium concentration in the synthesis of CdSe magic-sized quantum dots affects how the brain responds to oxidative stress. J Biomed Mater Res B Appl Biomater 2021; 110:1140-1150. [PMID: 34928544 DOI: 10.1002/jbm.b.34988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/21/2021] [Accepted: 11/27/2021] [Indexed: 01/14/2023]
Abstract
CdSe magic-sized quantum dots (MSQDs) have been widely used as fluorescent probes in biological systems due to their excellent optical properties with a broader fluorescence spectrum and stable luminescence in biological media. However, they can be cytotoxic and alter the redox balance depending on the amounts of Cd2+ adsorbed on their surface. Thus, the present study aimed to evaluate whether increases in selenium concentration in the synthesis of CdSe-MSQDs decrease the oxidative stress caused by Cd2+ -based quantum dots. CdSe-MSQDs synthesized with different concentrations of selenium were investigated against oxidative stress in the brain of chicken embryos by examining total antioxidant capacity, lipid peroxidation, thiol, and glutathione contents, as well as the activities of glutathione peroxidase, superoxide dismutase (SOD), catalase (CAT), and glutathione reductase. In addition, the vascularization of the chorioallantoic membrane (CAM) analysis was performed. Higher selenium concentrations alter the surface defect levels (decrease free Cd2+ ) and controlled the oxidative effects of CdSe-MSQDs by reducing the lipid peroxidation, restoring the glutathione defense system and the antioxidant enzymes SOD and CAT, and maintaining the vascular density of the CAM. The current findings reinforce the study of the effects of the presence of Cd2+ ions on the surface of quantum dots, changing toxicity, and aiming interesting strategies of nanomaterials in biological systems.
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Affiliation(s)
- Danielle Diniz Vilela
- Biochemistry and Molecular Biology Laboratory, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Brazil
| | - Allisson Benatti Justino
- Biochemistry and Molecular Biology Laboratory, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Brazil
| | - Douglas Carvalho Caixeta
- Biochemistry and Molecular Biology Laboratory, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Brazil
| | - Adriele Vieira de Souza
- Biochemistry and Molecular Biology Laboratory, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Brazil
| | - Renata Roland Teixeira
- Biochemistry and Molecular Biology Laboratory, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Brazil
| | - Rodrigo Rodrigues Franco
- Biochemistry and Molecular Biology Laboratory, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Brazil
| | - André Lopes Saraiva
- Biochemistry and Molecular Biology Laboratory, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Brazil
| | | | - Noelio Oliveira Dantas
- Laboratory of New Nanostructured and Functional Materials, Physics Institute, Federal University of Alagoas, Maceio, Brazil
| | - Anielle Christine Almeida Silva
- Laboratory of New Nanostructured and Functional Materials, Physics Institute, Federal University of Alagoas, Maceio, Brazil.,Postgraduate Program of the Northeast Biotechnology Network (RENORBIO), Federal University of Alagoas, Maceio, Brazil
| | - Foued Salmen Espindola
- Biochemistry and Molecular Biology Laboratory, Institute of Biotechnology, Federal University of Uberlandia, Uberlandia, Brazil
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10
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Dias MS, Junior EPV, Santos BCD, Martins FA, Almeida PMDE, Peron AP. Cytogenotoxicity and protective effect of piperine and capsaicin on meristematic cells of Allium cepa L. AN ACAD BRAS CIENC 2021; 93:e20201772. [PMID: 34550203 DOI: 10.1590/0001-3765202120201772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/02/2021] [Indexed: 11/22/2022] Open
Abstract
Piperine and capsaicin are important molecules with biological and pharmacological activities. This study aimed to evaluate the cytogenotoxic and protective effect of piperine and capsaicin on Allium cepa cells. A. cepa roots were exposed to negative (2% Dimethylsulfoxide) and positive (Methylmethanesulfonate, MMS, 10 µg/mL) controls, and four concentrations (25-200 µM) of piperine or capsaicin (alone) or associated before, simultaneously or after with the MMS. Only the lowest concentration of piperine (25 µM) showed a protective effect because it was not genotoxic. Piperine and capsaicin were cytotoxic (50, 100 and 200 µM). Piperine (50 to 200 µM) caused a significant increase in the total average of chromosomal alterations of in A. cepa cells. For capsaicin, the genotoxic effect was dose-dependent with a significant increase for all concentrations, highlighting the significant presence of micronuclei and nuclear buds for the two isolates. In general, bioactive compounds reduced the total average of chromosomal alterations against damage caused by MMS, mainly micronuclei and/or nuclear buds. Therefore, the two molecules were cytotoxic and genotoxic at the highest concentrations, and did not have cytoprotective action, and the lowest concentration of piperine demonstrated important chemopreventive activity.
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Affiliation(s)
- Marcondes S Dias
- Programa de Pós-Graduação em Genética e Melhoramento, Universidade Federal do Piauí /UFPI, Laboratório de Genética, Ininga, 64049-550 Teresina, PI, Brazil
| | - Erasmo P V Junior
- Universidade Estadual do Piauí, Centro de Ciências Naturais (CCN), Laboratório de Genética, Rua João Cabral, 2231, 64002-150 Teresina, PI, Brazil
| | - Bianca C Dos Santos
- Universidade Estadual do Piauí, Centro de Ciências Naturais (CCN), Laboratório de Genética, Rua João Cabral, 2231, 64002-150 Teresina, PI, Brazil
| | - Francielle A Martins
- Universidade Estadual do Piauí, Centro de Ciências Naturais (CCN), Laboratório de Genética, Rua João Cabral, 2231, 64002-150 Teresina, PI, Brazil
| | - Pedro M DE Almeida
- Universidade Estadual do Piauí, Centro de Ciências Naturais (CCN), Laboratório de Genética, Rua João Cabral, 2231, 64002-150 Teresina, PI, Brazil
| | - Ana P Peron
- Universidade Federal de Tecnologia, Paraná /UTFPR, Departamento de Biodiversidade e Conservação da Natureza, Campus Campo Mourão, Via Rosalina Maria dos Santos, 1233, Caixa Postal 271, 87301-899 Campo Mourão, PR, Brazil
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11
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Liu Y, Liu D, Xie Z. Rapid and Specific Fluorescence Method for the Quantification of Arbutin in Cosmetics. ANAL LETT 2021. [DOI: 10.1080/00032719.2021.1929278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yafeng Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
| | - Daizheng Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
| | - Zhenming Xie
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, China
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12
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Sheng YY, Xiang J, Wang ZS, Jin J, Wang YQ, Li QS, Li D, Fang ZT, Lu JL, Ye JH, Liang YR, Zheng XQ. Theacrine From Camellia kucha and Its Health Beneficial Effects. Front Nutr 2020; 7:596823. [PMID: 33392238 PMCID: PMC7773691 DOI: 10.3389/fnut.2020.596823] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 11/30/2020] [Indexed: 12/13/2022] Open
Abstract
Theacrine, i.e., 1,3,7,9-tetramethyluric acid, is one of the major purine alkaloids found in leaf of a wild tea plant species Camellia kucha Hung T. Chang. Theacrine has been attracted great attentions academically owing to its diverse health benefits. Present review examines the advances in the research on the health beneficial effects of theacrine, including antioxidant effect, anti-inflammatory effect, locomotor activation and reducing fatigue effects, improving cognitive effect, hypnotic effect, ameliorating lipid metabolism and inhibiting breast cancer cell metastasis effect. The inconsistent results in this research field and further expectations were also discussed.
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Affiliation(s)
- Yue-Yue Sheng
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Jing Xiang
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Ze-Shi Wang
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Jing Jin
- Zhejiang Agricultural Technology Extension Center, Hangzhou, China
| | - Ying-Qi Wang
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Qing-Sheng Li
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Da Li
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Zhou-Tao Fang
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Jian-Liang Lu
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Jian-Hui Ye
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Yue-Rong Liang
- Tea Research Institute, Zhejiang University, Hangzhou, China
| | - Xin-Qiang Zheng
- Tea Research Institute, Zhejiang University, Hangzhou, China
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13
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Dos Santos Freire J, Dos Santos Fernandes BC, da Silva JAC, da Silva Araújo JR, de Almeida PM, da Costa Júnior JS, da Silva JN, de Freitas SDL, Martins FA. Phytochemical and antioxidant characterization, cytogenotoxicity and antigenotoxicity of the fractions of the ethanolic extract of in Poincianella bracteosa (Tul.) L.P. Queiroz. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2020; 83:730-747. [PMID: 32998665 DOI: 10.1080/15287394.2020.1824136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
has been widely used in folk medicine to treat catarrhal infections, diarrhea, and anemia; however, phytochemical and toxicogenetic data are still lacking. The objective of this study was to examine the phytochemical and antioxidant characteristics as well as assess cytogenotoxicity and antigenotoxicity in hexane (HF), ether (EF) and ethyl acetate (AF) fractions of P. bracteosa leaves using Allium cepa bioassay. Phytochemical analysis revealed the presence of saponins and phenolic groups. EF fraction contained a higher content of total phenolics (441.23 ± 1.82 mg GAE/g), while HF fraction showed a higher content of total flavonoids (84.77 ± 5.33 mg QE/g). Higher antioxidant activity was observed in EF (EC50 25.06 ± 0.07 µg/ml). Cytotoxic effect was verified for all fractions, but no chromosomal alterations were observed in the A. cepa assay. With respect to antigenotoxicity, the protective effect of EF and AF fractions was attributed to as evidenced by the modulation of mutagenic action of methyl methanesulfonate (MMS), mainly by inhibiting the development of micronuclei. Among the fractions, EF was considered the most promising, as it exhibited higher antioxidant activity, was not genotoxic, exerted protective activity against the damage induced by MMS and also presented cytotoxic activity, a desired quality in the search for natural anticarcinogenic compounds.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Francielle Alline Martins
- Programa de Pós-Graduação em Química, Universidade Estadual do Piauí - UESPI , Teresina, Brasil
- Centro de Ciências da Natureza, Universidade Estadual do Piauí - UESPI , Teresina, Brasil
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Haider K, Haider MR, Neha K, Yar MS. Free radical scavengers: An overview on heterocyclic advances and medicinal prospects. Eur J Med Chem 2020; 204:112607. [PMID: 32721784 DOI: 10.1016/j.ejmech.2020.112607] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/08/2020] [Accepted: 06/19/2020] [Indexed: 12/22/2022]
Abstract
In the present scenario, there has been a lot of consideration toward the field of free radical chemistry. Free radicals responsive oxygen species are produced by different endogenous frameworks, exposure to various physicochemical conditions, radiation, toxins, metabolized drug by-product, and pathological states. On the off chance that free radical overpowers the body's capacity, it generates a condition known as oxidative stress, which can alter physiological conditions of the body and results in several diseases. For appropriate physiological function, it is necessary to have a proper balance between free radicals and antioxidants. Antioxidants chemically inhibit the oxidation process; they are also known as free radical scavengers. For tackling the problem of oxidative stress application of an external source of antioxidant is helpful. A lot of antioxidants of natural, semi-synthetic and synthetic origin are in use, with time search of more effective, nontoxic, safe antioxidant is intensified. The present review, discuss different synthetic derivatives bearing various heterocyclic scaffolds as radical scavengers.
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Affiliation(s)
- Kashif Haider
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Md Rafi Haider
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Kumari Neha
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - M Shahar Yar
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India.
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15
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Souza DS, Souza JDRP, Coutinho JP, da Silveira TFF, Ballus CA, Filho JT, Bolini HMA, Godoy HT. Application of Tamarind Waste Extracts to Improve the Antioxidant Properties of Tamarind Nectars. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2020; 75:70-75. [PMID: 31848853 DOI: 10.1007/s11130-019-00778-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Tamarind fruits are consumed worldwide and their seeds have an underexploited potential. We assessed the effect of the addition of a freeze-dried aqueous of extract tamarind seed (FAE) at three concentration levels (0.3, 1.15 and 2%) on the antioxidant capacity (DPPH, ABTS, FRAP and ORAC) and concentrations of total phenolic compounds in tamarind pulp. Conditions used to prepare the aqueous extracts were established using multivariate optimization. Moreover, nectars prepared from pulps combined with FAE were subjected to sensory tests. Tamarind fruits from three geographic regions in Brazil (Minas Gerais, São Paulo and Bahia) that were harvested in 2013 and 2014 were used in the study. Generally, the freeze-dried aqueous extracts increased the concentrations of antioxidants in the pulp. The results revealed a positive correlation between the FAE concentration in the pulp and the antioxidant capacity of all samples, particularly samples from Bahia and Minas Gerais, which presented an increase of up to 1,942% in the ABTS method when 2% FAE was incorporated into the pulp, from approximately 40.1 to 209.1 mMTrolox/gdw and 13.4 to 143.4 mMTrolox/gdw, respectively. Sensory tests indicated the satisfactory acceptance and non-distinction between nectar samples to which FAE was or was not added when the FAE concentration was less than 2.3gFAE/L, regardless of the geographic origin of the samples.
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Affiliation(s)
- Danilo Santos Souza
- Department of Food Science, Faculty of Food Engineering, State University of Campinas (UNICAMP), R. Monteiro Lobato, 80 - Cidade Universitária, CEP, Campinas, SP, 13083-852, Brazil
| | - Jane Delane Reis Pimentel Souza
- Department of Food Science, Faculty of Food Engineering, State University of Campinas (UNICAMP), R. Monteiro Lobato, 80 - Cidade Universitária, CEP, Campinas, SP, 13083-852, Brazil
| | - Janclei Pereira Coutinho
- Department of Exact and Technological Sciences, State University of Santa Cruz, Rodovia BR-415, Km 16, Salobrinho, s/n, CEP, Ilhéus, BA, 45662-000, Brazil
| | - Tayse Ferreira Ferreira da Silveira
- Department of Food Science, Faculty of Food Engineering, State University of Campinas (UNICAMP), R. Monteiro Lobato, 80 - Cidade Universitária, CEP, Campinas, SP, 13083-852, Brazil
| | - Cristiano Augusto Ballus
- Department of Food Science and Technology, Centre for Agrarian Sciences, Federal University of Santa Maria, Av. Roraima 1000, CEP, Santa Maria, RS, 97105-900, Brazil
| | - José Teixeira Filho
- Faculty of Agricultural Engineering/ Instituto de Geociências, State University of Campinas (UNICAMP), Rua Cândido Rondon, 501 - Cidade Universitária, CEP, Campinas, SP, 13083-875, Brazil
| | - Helena Maria Andre Bolini
- Department of Food and Nutrition, Faculty of Food Engineering, State University of Campinas (UNICAMP), R. Monteiro Lobato, 80 - Cidade Universitária, CEP, Campinas, SP, 13083-852, Brazil
| | - Helena Teixeira Godoy
- Department of Food Science, Faculty of Food Engineering, State University of Campinas (UNICAMP), R. Monteiro Lobato, 80 - Cidade Universitária, CEP, Campinas, SP, 13083-852, Brazil.
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Dai CY, Liao PR, Zhao MZ, Gong C, Dang Y, Qu Y, Qiu LS. Optimization of Ultrasonic Flavonoid Extraction from Saussurea involucrate, and the Ability of Flavonoids to Block Melanin Deposition in Human Melanocytes. Molecules 2020; 25:molecules25020313. [PMID: 31941038 PMCID: PMC7024147 DOI: 10.3390/molecules25020313] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/02/2020] [Accepted: 01/09/2020] [Indexed: 01/21/2023] Open
Abstract
(1) Background: Flavonoids are the primary medicinal ingredient of Saussurea involucrate, which have significant antioxidant capacity. Optimizing the extraction of Saussurea involucrate flavonoids (SIFs) and exploring the ability to block melanin deposition caused by reactive oxygen can greatly promote the development of S. involucrate whitening products. (2) Methods: Ultrasonic extraction process was optimized using the Box-Behnken design (BBD) and response surface methodology (RSM). Then, the effect of SIFs on antioxidant activity and anti-deposition of melanin, and genes related to the melanin synthesis are studied. (3) Results: The optimal extraction procedures are as follows: the extraction time, ethanol content, and solvent ratio (v/w) are 64 min, 54%, and 54:1, respectively. The reducing activity and scavenging rates of 2,2-diphenyl-1-picrylhydrazyl (DPPH), superoxide anion, hydroxyl radical, and ABTS+ were promoted as more S. involucrate flavonoid extract was added. The SIFs extract induced a decrease in the melanin synthesis by inhibiting the human melanoma A375 cell tyrosinase activity. SIFs also depress expression of melanin synthesis related genes. (4) Conclusions: the highest SIFs content was obtained by using 54% ethanol and 54:1 solvent ratio (v/w) for 64 min. The extract of SIFs exhibited good ability of antioxidant and anti-deposition of melanin in human melanocytes.
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Affiliation(s)
- Chun-Yan Dai
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (C.-Y.D.); (P.-R.L.); (M.-Z.Z.); (C.G.); (Y.D.)
- Yunnan Key Laboratory of Sustainable Utilization of Panax Notoginseng, Kunming 650500, China
- Laboratory of Sustainable Utilization of Panax Notoginseng Resources, State Administration of Traditional Chinese Medicine, Kunming 650500, China
- Kunming University of Science and Technology, Analysis and Testing Center, Kunming 650500, China
| | - Pei-Ran Liao
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (C.-Y.D.); (P.-R.L.); (M.-Z.Z.); (C.G.); (Y.D.)
- Yunnan Key Laboratory of Sustainable Utilization of Panax Notoginseng, Kunming 650500, China
- Laboratory of Sustainable Utilization of Panax Notoginseng Resources, State Administration of Traditional Chinese Medicine, Kunming 650500, China
- Kunming University of Science and Technology, Analysis and Testing Center, Kunming 650500, China
| | - Ming-Zhuo Zhao
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (C.-Y.D.); (P.-R.L.); (M.-Z.Z.); (C.G.); (Y.D.)
- Yunnan Key Laboratory of Sustainable Utilization of Panax Notoginseng, Kunming 650500, China
- Laboratory of Sustainable Utilization of Panax Notoginseng Resources, State Administration of Traditional Chinese Medicine, Kunming 650500, China
- Kunming University of Science and Technology, Analysis and Testing Center, Kunming 650500, China
| | - Chao Gong
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (C.-Y.D.); (P.-R.L.); (M.-Z.Z.); (C.G.); (Y.D.)
| | - Yue Dang
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (C.-Y.D.); (P.-R.L.); (M.-Z.Z.); (C.G.); (Y.D.)
- Yunnan Key Laboratory of Sustainable Utilization of Panax Notoginseng, Kunming 650500, China
- Laboratory of Sustainable Utilization of Panax Notoginseng Resources, State Administration of Traditional Chinese Medicine, Kunming 650500, China
- Kunming University of Science and Technology, Analysis and Testing Center, Kunming 650500, China
| | - Yuan Qu
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (C.-Y.D.); (P.-R.L.); (M.-Z.Z.); (C.G.); (Y.D.)
- Yunnan Key Laboratory of Sustainable Utilization of Panax Notoginseng, Kunming 650500, China
- Laboratory of Sustainable Utilization of Panax Notoginseng Resources, State Administration of Traditional Chinese Medicine, Kunming 650500, China
- Kunming University of Science and Technology, Analysis and Testing Center, Kunming 650500, China
- Correspondence: (Y.Q.); (L.-S.Q.); Tel.: +86-136-6970-6827 (Y.Q.); +86-136-7872-4800 (L.-S.Q.)
| | - Li-Sha Qiu
- College of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China; (C.-Y.D.); (P.-R.L.); (M.-Z.Z.); (C.G.); (Y.D.)
- Yunnan Key Laboratory of Sustainable Utilization of Panax Notoginseng, Kunming 650500, China
- Laboratory of Sustainable Utilization of Panax Notoginseng Resources, State Administration of Traditional Chinese Medicine, Kunming 650500, China
- Kunming University of Science and Technology, Analysis and Testing Center, Kunming 650500, China
- Correspondence: (Y.Q.); (L.-S.Q.); Tel.: +86-136-6970-6827 (Y.Q.); +86-136-7872-4800 (L.-S.Q.)
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17
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Design, synthesis, and evaluation of isoflavone analogs as multifunctional agents for the treatment of Alzheimer's disease. Eur J Med Chem 2019; 168:207-220. [DOI: 10.1016/j.ejmech.2019.02.053] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 02/14/2019] [Accepted: 02/17/2019] [Indexed: 12/11/2022]
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18
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Tang W, Li C, He Z, Pan F, Pan S, Wang Y. Probiotic Properties and Cellular Antioxidant Activity of Lactobacillus plantarum MA2 Isolated from Tibetan Kefir Grains. Probiotics Antimicrob Proteins 2019; 10:523-533. [PMID: 29159445 DOI: 10.1007/s12602-017-9349-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lactobacillus plantarum MA2 was isolated from traditional Chinese Tibetan kefir grains. Its antioxidant properties had been demonstrated in vitro and in vivo previously. In the present study, the probiotic characteristics of this strain were further evaluated by investigating its acid and bile salt tolerances, cell surface hydrophobicity, and autoaggregation, respectively. In addition, the cellular antioxidant activity (CAA) assay was applied to test the antioxidant capacity of the isolate in different growth phases. Same method was also used to evaluate the antioxidant capacity of its fermentation supernatant, cell-free extract, and intact cell quantitatively. The results of probiotic characteristic tests showed that MA2 could survive at pH 2.5 and 0.3% bile salt. Meanwhile, the measurements of cell surface hydrophobicity and autoaggregation were 45.29 ± 2.15 and 6.30 ± 0.34%, respectively. The results of cellular antioxidant activity tests indicated that MA2 had high antioxidant potential. The CAA value of logarithmic phase cell-free extract of MA2 (39,450.00 ± 424.05 μmol quercetin equivalents/100 g sample) was significantly higher than that in stationary phase cell-free extract (3395.98 ± 126.06 μmol quercetin equivalents/100 g sample) and that of fermentation supernatant in logarithmic phase (2174.41 ± 224.47 μmol quercetin equivalents/100 g sample) (p < 0.05). The CAA method was successively applied to evaluate the antioxidant capacity of MA2 in this study, which suggests that it could be used as a useful method for lactic acid bacteria antioxidant potential evaluation.
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Affiliation(s)
- Wei Tang
- State Key Laboratory of Food Nutrition and Safety, China, Tianjin University of Science and Technology, Tianjin, 300457, China.,School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266000, China
| | - Chao Li
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Food Engineering and Biotechnology Institute, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Zengguo He
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266000, China
| | - Fen Pan
- State Key Laboratory of Food Nutrition and Safety, China, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Shuo Pan
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, Food Engineering and Biotechnology Institute, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Yanping Wang
- State Key Laboratory of Food Nutrition and Safety, China, Tianjin University of Science and Technology, Tianjin, 300457, China. .,Key Laboratory of Food Nutrition and Safety, Ministry of Education, Food Engineering and Biotechnology Institute, Tianjin University of Science and Technology, Tianjin, 300457, China.
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19
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Mudenuti NVDR, de Camargo AC, Shahidi F, Madeira TB, Hirooka EY, Grossmann MVE. Soluble and insoluble-bound fractions of phenolics and alkaloids and their antioxidant activities in raw and traditional chocolate: A comparative study. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.10.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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20
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Wu T, Yu GY, Xiao J, Yan C, Kurihara H, Li YF, So KF, He RR. Fostering efficacy and toxicity evaluation of traditional Chinese medicine and natural products: Chick embryo as a high throughput model bridging in vitro and in vivo studies. Pharmacol Res 2018; 133:21-34. [DOI: 10.1016/j.phrs.2018.04.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 04/07/2018] [Accepted: 04/13/2018] [Indexed: 12/19/2022]
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21
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Peiran L, Ying L, Mingzhuo Z, Ye Y, Xiuming C. The development of a Panax notoginseng medicinal liquor processing technology using the response surface method and a study of its antioxidant activity and its effects on mouse melanoma B16 cells. Food Funct 2018; 8:4251-4264. [PMID: 29051954 DOI: 10.1039/c7fo00880e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Panax notoginseng medicinal liquor (PML) has a long history of use in the function of blood circulation. However, the processing of PML is currently dependent on experience, which results in low efficiency and unstable quality of PML. A variety of substances of P. notoginseng have a strong ability to scavenge free radicals and antioxidant activity, but the antioxidant activity of PML has not been formally researched. The aim of the present study was to optimize the processing technology of PML and to verify the anti-oxidation and anti-deposition of melanin functions of PML. Based on the Box-Behnken design of response surface method, the PML processing parameters were established as follows: the ratio of liquid to solid 32 : 1, 53% of alcohol, and soaking time of 35 d. With elevating concentration of PML extract, the reducing force and scavenging rates of DPPH, superoxide anion, hydroxyl radical and ABTS+ were increased, and the inhibition rate of tyrosinase activity and the melanin synthesis ability were increased in mice melanoma B16 cells. Thus, the optimal processing technology not only shortened the processing time but also decreased the material costs. PML may be developed as food or beauty products for the functions of anti-oxidation and anti-deposition of melanin.
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Affiliation(s)
- Liao Peiran
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China.
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22
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Jiang CY, Huang JW, Jie C, Yan C, Li YT, Kurihara H, Li YF, He RR. Wanglaoji Herbal Tea Protects Against Influenza-induced Pneumonia in Restraint-Stressed Mice via its Anti-inflammatory Effects. INT J PHARMACOL 2018. [DOI: 10.3923/ijp.2018.342.351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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23
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S. S, H. LJK, K. R, M. S. Antimicrobial and antioxidant potentials of biosynthesized colloidal zinc oxide nanoparticles for a fortified cold cream formulation: A potent nanocosmeceutical application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.059] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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Ruan X, Cui WX, Yang L, Li ZH, Liu B, Wang Q. Extraction of total alkaloids, peimine and peiminine from the flower of Fritillaria thunbergii Miq using supercritical carbon dioxide. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.01.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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25
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Li YF, Ouyang SH, Chang YQ, Wang TM, Li WX, Tian HY, Cao H, Kurihara H, He RR. A comparative analysis of chemical compositions in Camellia sinensis var. puanensis Kurihara, a novel Chinese tea, by HPLC and UFLC-Q-TOF-MS/MS. Food Chem 2017; 216:282-8. [DOI: 10.1016/j.foodchem.2016.08.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 08/04/2016] [Accepted: 08/07/2016] [Indexed: 12/17/2022]
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26
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Ożarowski M, Kujawski R, Mikołajczak P, Gryszczyńska A, Pietrowiak A, Białas W, Baraniak J, Górska-Paukszta M, Buchwald W, Kędzia B, Krajewska-Patan A, Seremak-Mrozikiewicz A. Comparison of antioxidant activities of fractionated extracts from seedlings and herb of Chelidonium majus L. using DPPH, ABTS and FRAP methods. HERBA POLONICA 2017. [DOI: 10.1515/hepo-2016-0020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Summary
Introduction: Our study is a part of a trend of studies on the antioxidative properties of Chelidonium majus extracts or their fractions suggesting that antioxidant activities may depend on total flavonoid and/or alkaloid contents.
Objective: This study focused on the examination of antioxidative activities of full water extract, non-protein fraction and protein fraction of the extract from aerial parts of mature plants and young seedlings.
Methods: Total flavonoid and alkaloid contents were evaluated by spectrometric methods. Quantitative determination of chelidonine, coptisine, sanquinarine, berberine was made by HPLC-UV. The antioxidative activities were evaluated using (1) 2,2-diphenyl-1-picrylhydrazyl (DPPH), (2) 2,2’-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging and (3) ferric reducing antioxidant power (FRAP) methods.
Results: All concentrations of herb extracts exhibited higher antioxidant capacities than extract from seedlings. Two antioxidant tests (DPPH, FRAP) showed that full water extract from herb had the highest antioxidant activity, while its non-protein fraction and protein fraction showed lower antioxidant activity. It was found that the full water extract from herb contained the highest concentrations of flavonoids and alkaloids when compared with other samples.
Conclusion: Our findings suggest that chelidonine and coptisine especially could be responsible for the observed changes in the extract antioxidant activity, because these alkaloids were determined in the highest concentration in full water extract from herb. It cannot be also excluded that the observed variables values between extracts and their fractions from herb or from seedlings may also be the result of interactions between flavonoids and other chemical compounds.
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Affiliation(s)
- Marcin Ożarowski
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Kolejowa 2, 62-064 Plewiska, Poland
| | - Radosław Kujawski
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Kolejowa 2, 62-064 Plewiska, Poland
| | - Przemysław Mikołajczak
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Kolejowa 2, 62-064 Plewiska, Poland
- Department of Pharmacology, Poznan University of Medical Sciences, Rokietnicka 5a, 60-806 Poznań, Poland
| | - Agnieszka Gryszczyńska
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Kolejowa 2, 62-064 Plewiska, Poland
| | - Aurelia Pietrowiak
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Kolejowa 2, 62-064 Plewiska, Poland
| | - Wojciech Białas
- Department of Biotechnology and Food Microbiology, University of Life Sciences, Wojska Polskiego 28, 60-637 Poznań, Poland
| | - Justyna Baraniak
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Kolejowa 2, 62-064 Plewiska, Poland
| | - Małgorzata Górska-Paukszta
- Department of Stem Cells and Regenerative Medicine, Institute of Natural Fibres and Medicinal Plants, Kolejowa 2, 62-064 Plewiska, Poland
| | - Waldemar Buchwald
- Department of Botany, Breeding and Agricultural Technology of Medicinal Plants, Institute of Natural Fibres and Medicinal Plants, Kolejowa 2, 62-064 Plewiska, Poland
| | - Bogdan Kędzia
- Department of Innovative Biomaterials and Nanotechnologies, Institute of Natural Fibres and Medicinal Plants, Wojska Polskiego 71b, 60-630 Poznań, Poland
| | - Anna Krajewska-Patan
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Kolejowa 2, 62-064 Plewiska, Poland
| | - Agnieszka Seremak-Mrozikiewicz
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Kolejowa 2, 62-064 Plewiska, Poland
- Division of Perinatology and Women’s Diseases, Poznan University of Medical Sciences, Polna 33, 60-535 Poznań, Poland
- Laboratory of Molecular Biology, Poznan University of Medical Sciences, Polna 33, 60-535 Poznań, Poland
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Antioxidant properties of thio-caffeine derivatives: Identification of the newly synthesized 8-[(pyrrolidin-1-ylcarbonothioyl)sulfanyl]caffeine as antioxidant and highly potent cytoprotective agent. Bioorg Med Chem Lett 2016; 26:3994-8. [DOI: 10.1016/j.bmcl.2016.06.091] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 06/28/2016] [Accepted: 06/29/2016] [Indexed: 01/04/2023]
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Zhou ZQ, Xiao J, Fan HX, Yu Y, He RR, Feng XL, Kurihara H, So KF, Yao XS, Gao H. Polyphenols from wolfberry and their bioactivities. Food Chem 2016; 214:644-654. [PMID: 27507521 DOI: 10.1016/j.foodchem.2016.07.105] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Revised: 06/19/2016] [Accepted: 07/18/2016] [Indexed: 11/29/2022]
Abstract
Nine new phenylpropanoids, one new coumarin, and 43 known polyphenols were isolated from wolfberry. Their structures were determined by spectroscopic analyses, chemical methods, and comparison of NMR data. Polyphenols, an important type of natural products, are notable constituents in wolfberry. 53 polyphenols, including 28 phenylpropanoids, four coumarins, eight lignans, five flavonoids, three isoflavonoids, two chlorogenic acid derivatives, and three other constituents, were identified from wolfberry. Lignans and isoflavonoids were firstly reported from wolfberry. 22 known polyphenols were the first isolates from the genus Lycium. This research presents a systematic study on wolfberry polyphenols, including their bioactivities. All these compounds exhibited oxygen radical absorbance capacity (ORAC), and some compounds displayed DPPH radical scavenging activity. One compound had acetylcholinesterase inhibitory activity. The discovery of new polyphenols and their bioactivities is beneficial for understanding the scientific basis of the effects of wolfberry.
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Affiliation(s)
- Zheng-Qun Zhou
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China
| | - Jia Xiao
- Department of Immunobiology, Institute of Tissue Transplantation and Immunology, College of Life Science and Technology, Jinan University, Guangzhou 510632, People's Republic of China
| | - Hong-Xia Fan
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China
| | - Yang Yu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China
| | - Rong-Rong He
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China
| | - Xiao-Lin Feng
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China
| | - Hiroshi Kurihara
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China
| | - Kwok-Fai So
- Guangdong Medical Key Laboratory of Brain Function and Diseases, GMH Institute of Central Nervous System Regeneration, Jinan University, Guangzhou 510632, People's Republic of China
| | - Xin-Sheng Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China.
| | - Hao Gao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China.
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Optimization of Supercritical Fluid Extraction of Total Alkaloids, Peimisine, Peimine and Peiminine from the Bulb of Fritillaria thunbergii Miq, and Evaluation of Antioxidant Activities of the Extracts. MATERIALS 2016; 9:ma9070524. [PMID: 28773648 PMCID: PMC5456939 DOI: 10.3390/ma9070524] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/23/2016] [Accepted: 06/24/2016] [Indexed: 11/17/2022]
Abstract
Supercritical fluid extraction (SFE) was used to extract total alkaloids, peimisine, peimine and peiminine from the bulb of Fritillaria thunbergii Miq. The antioxidant capacity of the extracts was evaluated by DPPH radical scavenging activity (DPPH-RSA), ABTS radical scavenging activity (ABTS-RSA) and ferric reducing capacity (FRAP) assay. A central composite design (CCD) with four variables and five levels was employed for optimization of process parameters, and response surface plots were constructed in accordance with a second order polynomial model. Under optimal conditions of 3.0 h, 60.4 °C, 26.5 MPa and 89.3% ethanol, the highest yields were predicted to be 3.8 mg/g for total alkaloids, 0.5 mg/g for peimisine, 1.3 mg/g for peimine and 1.3 mg/g for peiminine, and the antioxidant capacity of extracts displayed EC50, DPPH value of 5.5 mg/mL, EC50, ABTS value of 0.3 mg/mL and FRAP value of 118.2 mg ascorbic acid equivalent (AAE)/100 g.
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30
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Prevention of cardiac dysfunction, kidney fibrosis and lipid metabolic alterations in l-NAME hypertensive rats by sinapic acid--Role of HMG-CoA reductase. Eur J Pharmacol 2016; 777:113-23. [PMID: 26945821 DOI: 10.1016/j.ejphar.2016.03.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 02/20/2016] [Accepted: 03/01/2016] [Indexed: 01/06/2023]
Abstract
The present study was designed to evaluate the effect of sinapic acid, a bioactive phenolic acid on high blood pressure associated cardiac dysfunction, kidney fibrosis and lipid alterations in N(ω)-nitro-l-arginine methyl ester hydrochloride (l-NAME) induced hypertensive rats. Sinapic acid was administered to rats orally at a dosage of 40 mg/kg everyday for a period of 4 weeks. Sinapic acid treatment significantly decreased mean arterial pressure, left ventricular end diastolic pressure, organ weights (liver and kidney), lipid peroxidation products in tissues (liver and kidney), activities of hepatic marker enzymes and the levels of renal function markers in serum of l-NAME rats. Sinapic acid treatment also significantly increased the level of plasma nitric oxide metabolites, and enzymatic and non-enzymatic antioxidants in tissues of l-NAME rats. Tissue damage was assessed by histopathological examination. Alterations in plasma angiotensin-converting enzyme activity, level of plasma lipoproteins and tissue lipids were corrected by sinapic acid treatment in l-NAME rats. Sinapic acid treatment significantly decreased the activity of 3-hydroxy-3-methylglutaryl-Coenzyme A (HMG-CoA) reductase in plasma and liver, whereas the activity of lecithin cholesterol acyl transferase was significantly increased in the plasma of hypertensive rats. Docking result showed the interaction between sinapic acid and HMG-CoA reductase. Sinapic acid has shown best ligand binding energy of -5.5 kcal/M. Moreover, in chick embryo model, sinapic acid improved vessel density on chorioallantoic membrane. These results of the present study concludes that sinapic acid acts as a protective agent against hypertension associated cardiac dysfunction, kidney fibrosis and lipid alterations.
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Babova O, Occhipinti A, Maffei ME. Chemical partitioning and antioxidant capacity of green coffee (Coffea arabica and Coffea canephora) of different geographical origin. PHYTOCHEMISTRY 2016; 123:33-9. [PMID: 26837609 DOI: 10.1016/j.phytochem.2016.01.016] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 01/22/2016] [Accepted: 01/27/2016] [Indexed: 05/11/2023]
Abstract
Green coffee beans of Coffea arabica and Coffea canephora accessions from different geographical origin (Brazil, Colombia, Ethiopia, Honduras, Kenya, Mexico, Peru, Uganda and Vietnam) were extracted and the extracts analyzed by HPLC-ESI-MS/MS for the identification and quantification of chlorogenic acids and caffeine content. Principal component and cluster analyses were used to identify chemical patterns separating the different species and accessions based on their geographical origin. C. canephora showed always a higher caffeine content with respect to C. arabica, whereas the C. arabica accessions from Kenya showed a higher chlorogenic acids and a lower caffeine content. The antioxidant capacity of green coffee extracts was assayed by the reducing power and DPPH assays. The antioxidant capacity correlated with the chlorogenic acids content. The results show that the C. arabica from Kenya possesses the highest chlorogenic acids/caffeine ratio and, among the C. arabica accessions, the highest antioxidant capacity. Therefore, the C. arabica from Kenya is the most suitable green coffee source for nutraceutical applications because of its high antioxidant capacity and low caffeine content.
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Affiliation(s)
- Oxana Babova
- Department of Life Sciences and Systems Biology, University of Turin, Via Quarello 15/A, Turin, Italy
| | - Andrea Occhipinti
- Department of Life Sciences and Systems Biology, University of Turin, Via Quarello 15/A, Turin, Italy; Biosfered S.r.l., Academic Spin-Off of the University of Turin, Via Quarello 15/A, Turin, Italy
| | - Massimo E Maffei
- Department of Life Sciences and Systems Biology, University of Turin, Via Quarello 15/A, Turin, Italy; Biosfered S.r.l., Academic Spin-Off of the University of Turin, Via Quarello 15/A, Turin, Italy.
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