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Xia T, Zhu R. Multiple molecular and cellular mechanisms of the antitumour effect of dihydromyricetin (Review). Biomed Rep 2024; 20:82. [PMID: 38628627 PMCID: PMC11019658 DOI: 10.3892/br.2024.1769] [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: 12/18/2023] [Accepted: 03/13/2024] [Indexed: 04/19/2024] Open
Abstract
Dihydromyricetin (DHM) is a natural flavonoid compound with multiple antitumour effects, including inhibition of proliferation, promotion of apoptosis, inhibition of invasion and migration, clearance of reactive oxygen species (ROS) and induction of autophagy. For example, DHM can effectively block the progression of the tumour cell cycle and inhibit cell proliferation. In different types of cancer cells, DHM can regulate the PI3K/Akt pathway, mTOR, and NF-κB pathway components, such as p53, and endoplasmic reticulum stress can alter the accumulation of ROS or induce autophagy to promote the apoptosis of tumour cells. In addition, when DHM is used in combination with various known chemotherapy drugs, such as paclitaxel, nedaplatin, doxorubicin, oxaliplatin and vinblastine, it can increase the sensitivity of tumour cells to DHM and increase the therapeutic effect of chemotherapy drugs. In the present review, the multiple molecular and cellular mechanisms underlying the antitumour effect of DHM, as well as its ability to increase the effects of various traditional antitumour drugs were summarized. Through the present review, it is expected by the authors to draw attention to the potential of DHM as an antitumour drug and provide valuable references for the clinical translation of DHM research and the development of related treatment strategies.
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Affiliation(s)
- Tian Xia
- National Clinical Research Center for Child Health, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310052, P.R. China
| | - Runzhi Zhu
- National Clinical Research Center for Child Health, The Children's Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang 310052, P.R. China
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2
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Zhang H, Lin S, Xie R, Zhong W, Wang H, Farag MA, Hussain H, Arroo RRJ, Chen X, Xiao J. Thermal degradation of (2R, 3R)-dihydromyricetin in neutral aqueous solution at 100 ℃. Food Chem 2024; 435:137560. [PMID: 37793280 DOI: 10.1016/j.foodchem.2023.137560] [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: 05/05/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023]
Abstract
In the field of thermal degradation of flavonoids, current studies mainly focused on flavonols. However, the thermal degradation of dihydroflavonols in aqueous solution has received limited attention compared to flavonols. The single C2-C3 bonds of dihydroflavonols, which differs from the C2-C3 double bond in flavonols, may cause different degradation mechanisms. Dihydromyricetin (DMY) is a typical dihydroflavonol with six hydroxyl groups, and possesses various health effects. We explored the thermal degradation of DMY in neutral aqueous solution (pH 7) at 100 ℃. Ultra-performance liquid chromatography combined with photodiode array and electrospray ionization quadrupole-time-of-flight tandem mass spectrometric detection (UPLC-PDA-ESI-QTOF-MS/MS) provided suitable platform for exploring DMY degradation pathways, and negative ion mode was applied. Thermal treatment led to a decline in DMY level with time, accompanied by the appearance of various degradation products of DMY. Degradation mechanisms of DMY included isomerization, oxidation, hydroxylation, dimerization and ring cleavage. The pyrogallol-type ring B of DMY might be initially oxidized into ortho-quinone, which could further attack another DMY to form dimers. In addition, hydroxylation is likely to occur at C-2, C-3 of DMY or DMY dimers, which then further yields ring-cleavage products via breakage of the O1-C2 bond, C2-C3 bond, or C3-C4 bond. The 3-hydroxy-5-(3,3,5,7-tetrahydroxy-4-oxochroman-2-yl) cyclohexa-3,5-diene-1, 2-dione (m/z 333.0244) and unknown compound m/z 435.0925 were annotated as key intermediates in DMY degradation. Four phenolic acids, including 3,4,5-trihydroxybenzoic acid (m/z 169.0136, RT 1.4 min), 2,4,6-trihydroxyphenylglyoxylic acid (m/z 197.0084, RT 1.7 min), 2-oxo-2-(2,4,6-trihydroxyphenyl) acetaldehyde (m/z 181.0132, RT 2.4 min), and 2,4,6-trihydroxybenzoic acid (m/z 169.0139, RT 2.5 min) were identified as the major end products of DMY degradation. In addition, 5-((3,5dihydroxyphenoxy) methyl)-3-hydroxycyclohexa-3,5-diene-1,2-dione (m/z 261.0399, RT 11.7 min) and unidentified compound with m/z 329.0507 (RT 1.0 min) were also suggested to be end products of DMY degradation. These results provide novel insights on DMY stability and degradation products. Moreover, the heat treatment of DMY aqueous solution was found to gradually reduce the antioxidant activities of DMY, and even destroy the beneficial effect of DMY on the gut microbiota composition.
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Affiliation(s)
- Haolin Zhang
- Institute of Chinese Medical Sciences, University of Macau, Macau.
| | - Shiye Lin
- Universidade de Vigo, Department of Analytical and Food Chemistry, Faculty of Sciences, 32004 Ourense, Spain.
| | - Ruiwei Xie
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Weizhi Zhong
- Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.
| | - Hui Wang
- Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China.
| | - Mohamed A Farag
- Pharmacognosy Department, College of Pharmacy, Cairo University, Cairo, Egypt.
| | - Hidayat Hussain
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany.
| | - Randolph R J Arroo
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, United Kingdom.
| | - Xiaojia Chen
- Institute of Chinese Medical Sciences, University of Macau, Macau.
| | - Jianbo Xiao
- Universidade de Vigo, Department of Analytical and Food Chemistry, Faculty of Sciences, 32004 Ourense, Spain.
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3
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Fang J, Lou S, Zhou X, Lou D, Zhou L, Bian R. Dihydromyricetin reverses capecitabine-induced peripheral myelin dysfunction through modulation of oxidative stress. Clin Exp Pharmacol Physiol 2024; 51:e13833. [PMID: 38302079 DOI: 10.1111/1440-1681.13833] [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: 06/09/2023] [Revised: 09/21/2023] [Accepted: 10/22/2023] [Indexed: 02/03/2024]
Abstract
Previous clinical reports have shown that capecitabine, an oral prodrug of 5-fluorouracil (5-Fu), can induce peripheral neuropathy, resulting in numbness, paresthesia and hypoesthesia. However, the mechanism through which capecitabine causes peripheral nerve injury remains unclear. Here, we demonstrate that systemic administration of capecitabine leads to myelin abnormalities in the peripheral nerves of mice, which are possibly attributed to the death of Schwann cells, the myelinating cells in the peripheral nervous system. Furthermore, our results show that 5-Fu induces significant oxidative stress in Schwann cells by inhibiting the expression of the anti-oxidative protein DJ-1, leading to a decrease in Schwann cell markers. We found that the anti-oxidant dihydromyricetin (DMY) reverses 5-Fu-induced Schwann cell death and oxidative stress and alleviates capecitabine-induced myelin abnormalities. Taken together, our data indicate that capecitabine induces peripheral myelin dysfunction by regulating DJ-1-mediated oxidative stress in Schwann cells and reveal DMY as a potential therapeutic strategy for capecitabine-induced peripheral neuropathy.
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Affiliation(s)
- Jie Fang
- Emergency Department, Zhoushan Hospital, Zhoushan, China
| | - Shuyi Lou
- National Computer Network Emergency Response Technical Team/Coordination Center of China, Beijing, China
| | | | - Dayong Lou
- Zhuji People's Hospital of Zhejiang Province, Shaoxin, China
| | - Liqin Zhou
- Zhuji People's Hospital of Zhejiang Province, Shaoxin, China
| | - Rong Bian
- Zhuji People's Hospital of Zhejiang Province, Shaoxin, China
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4
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Chen Y, Gao X, Li B, Tian J. Konjac glucomannan-dihydromyricetin complex improves viscosity and hydration capacity of konjac glucomannan as well as the thermal stability of dihydromyricetin. Int J Biol Macromol 2023; 242:124666. [PMID: 37121418 DOI: 10.1016/j.ijbiomac.2023.124666] [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: 11/15/2022] [Revised: 04/05/2023] [Accepted: 04/25/2023] [Indexed: 05/02/2023]
Abstract
The nutritional benefits of soluble dietary fiber were mainly attributed to its viscosity and hydration capacity. This study was aimed to investigate the effects of the interaction between konjac glucomannan (KGM) and dihydromyricetin (DMY) on the viscosity and hydration capacity of KGM and the thermal stability of DMY. In contrary to most reports, the addition of DMY to KGM resulted in an increase of viscosity and hydration capacity determined via rheology and nuclear magnetic resonance spectroscopy characterization. Meanwhile the prototype retention of DMY in the presence of heating condition at 60 °C and 100 °C were improved. The radical scavenging capacity of DMY under heating condition was improved at 100 °C via the quantification of ABTS+ and DPPH. KGM-DMY complex was a non-covalent compound connected by hydrogen bonds which was characterized with particle size analyses, zeta potential analyses, transmission electron microscopy, infrared spectroscopy, X-ray diffraction, and isothermal titration calorimetry. This study was beneficial to the development of polyphenol-enriched nutrition based on KGM, especially in the aspects of satiety, appetite regulation and glucose regulation.
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Affiliation(s)
- Yan Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, PR China
| | - Xuefeng Gao
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, PR China
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, PR China; Functional Food Engineering & Technology Research Center of Hubei Province, Wuhan 430070, PR China
| | - Jing Tian
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China; Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, PR China; Functional Food Engineering & Technology Research Center of Hubei Province, Wuhan 430070, PR China.
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5
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Zhang R, Shi H, Li S, Zhang H, Zhang D, Wu A, Zhang C, Li C, Fu X, Chen S, Shi J, Tian Y, Wang S, Wang Y, Liu H. A double-layered gastric floating tablet for zero-order controlled release of dihydromyricetin: Design, development, and in vitro/in vivo evaluation. Int J Pharm 2023; 638:122929. [PMID: 37028570 DOI: 10.1016/j.ijpharm.2023.122929] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/26/2023] [Accepted: 04/01/2023] [Indexed: 04/07/2023]
Abstract
Dihydromyricetin (DHM) is an important natural flavonoid. However, most of DHM preparations have shown shortcomings such as low drug loading, poor drug stability, and/or large fluctuations in blood concentration. This study aimed to develop a gastric floating tablet with a double-layered structure for zero-order controlled release of DHM (DHM@GF-DLT). The final product DHM@GF-DLT showed a high average cumulative drug release at 24 h that best fit the zero-order model, and had a good floating ability in the stomach of the rabbit with a gastric retention time of over 24 h. The FTIR, DSC, and XRPD analyses indicated the good compatibility among the drug and the excipients in DHM@GF-DLT. The pharmacokinetic study revealed that DHM@GF-DLT could prolong the retention time of DHM, reduce the fluctuation of blood drug concentration, and enhance the bioavailability of DHM. The pharmacodynamic studies demonstrated that DHM@GF-DLT had a potent and long-term therapeutic effect on systemic inflammation in rabbits. Therefore, DHM@GF-DLT had the potential to serve as a promising anti-inflammatory agent and may develop into a once-a-day preparation, which was favorable to maintain a steady blood drug concentration and a long-term drug efficacy. Our research provided a promising development strategy for DHM and other natural products with a similar structure to DHM for improving their bioavailability and therapeutic effect.
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Affiliation(s)
- Ruirui Zhang
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Houyin Shi
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Sifang Li
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Hao Zhang
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Dan Zhang
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Ailing Wu
- Department of Anesthesiology, The First People's Hospital of Neijiang, Neijiang, Sichuan, PR China
| | - Chun Zhang
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Chunhong Li
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Xiujuan Fu
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Siwei Chen
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Jiaoyue Shi
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Yang Tian
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Sihan Wang
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Yu Wang
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China
| | - Hao Liu
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, PR China.
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Li MM, Chen YT, Ruan JC, Wang WJ, Chen JG, Zhang QF. Structure-activity relationship of dietary flavonoids on pancreatic lipase. Curr Res Food Sci 2022; 6:100424. [PMID: 36618100 PMCID: PMC9813676 DOI: 10.1016/j.crfs.2022.100424] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 12/05/2022] [Accepted: 12/21/2022] [Indexed: 12/26/2022] Open
Abstract
Lipase is a very important digestive enzyme for triglyceride absorption in vivo. The inhibitory activities of 26 dietary flavonoids, including flavone, flavanone, isoflavone and flavanol, on lipase were determined. Flavone exhibited stronger inhibitory activity than other types of flavonoids. Among them, luteolin exhibited the strongest inhibitory activity with IC50 value of 99 ± 11 μM, followed by quercetin and baicalein. The binding affinity of these flavonoids with lipase was investigated by fluorescence titration method. The binding affinity of flavones was stronger than flavanones, and was linearly positively correlated with their inhibitory activity. The binding of flavones on lipase caused the blue-shift of fluorescence, while flavanones caused red-shift. The analysis of structure-activity relationship of flavonoids on lipase revealed that the structure of C ring is very crucial. The hydrogenation of C2=C3 bond and the absence of C=O group in C ring both caused significant decrease of inhibitory activity. Besides, the hydroxylation on ring A and B of flavones increased the activity, while glycosylation weakened the activity. Molecular docking analysis confirmed that C2=C3 bond in C ring of flavones increases the π-conjugation and contributes to maintaining the planarity of flavonoid structure, which favour its Pi-Pi interaction with lipase.
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7
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Zhang R, Zhang H, Shi H, Zhang D, Zhang Z, Liu H. Strategic developments in the drug delivery of natural product dihydromyricetin: applications, prospects, and challenges. Drug Deliv 2022; 29:3052-3070. [PMID: 36146939 PMCID: PMC9518266 DOI: 10.1080/10717544.2022.2125601] [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] [Indexed: 11/03/2022] Open
Abstract
Dihydromyricetin (DHM) is an important natural flavonoid that has attracted much attention because of its various functions such as protecting the cardiovascular system and liver, treating cancer and neurodegenerative diseases, and anti-inflammation effect, etc. Despite its great development potential in pharmacy, DHM has some problems in pharmaceutical applications such as low solubility, permeability, and stability. To settle these issues, extensive research has been carried out on its physicochemical properties and dosage forms to produce all kinds of DHM preparations in the past ten years. In addition, the combined use of DHM with other drugs is a promising strategy to expand the application of DHM. However, although invention patents for DHM preparations have been issued in several countries, the current transformation of DHM research results into market products is insufficient. To date, there is still a lack of deep research into the pharmacokinetics, pharmacodynamics, toxicology, and action mechanism of DHM preparations. Besides, preparations for combined therapy of DHM with other drugs are scarcely reported, which necessitates the development of dosage forms for this application. Apart from medicine, the development of DHM in the food industry is also of great potential. Due to its multiple effects and excellent safety, DHM preparations can be developed for functional drinks and foods. Through this review, we hope to draw more attention to the development potential of DHM and the above challenges and provide valuable references for the research and development of other natural products with a similar structure-activity relationship to this drug.
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Affiliation(s)
- Ruirui Zhang
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, People's Republic of China
| | - Hao Zhang
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, People's Republic of China
| | - Houyin Shi
- Department of Orthopedics, Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou City, Sichuan, People's Republic of China
| | - Dan Zhang
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, People's Republic of China
| | - Zhuo Zhang
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, People's Republic of China
| | - Hao Liu
- School of Pharmacy, Southwest Medical University, Luzhou City, Sichuan, People's Republic of China
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8
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Zhang HL, Wang ML, Yi LZ, Högger P, Arroo R, Bajpai VK, Prieto MA, Chen XJ, Simal-Gandara J, Cao H. Stability profiling and degradation products of dihydromyricetin in Dulbecco's modified eagle's medium. Food Chem 2022; 378:132033. [PMID: 35033717 DOI: 10.1016/j.foodchem.2021.132033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 12/20/2021] [Accepted: 12/31/2021] [Indexed: 11/30/2022]
Abstract
Dihydromyricetin has shown many bioactivities in cell level. However, dihydromyricetin was found to be highly instable in cell culture medium DMEM. Here, the underlying degradation mechanism was investigated via UPLC-MS/MS analysis. Dihydromyricetin was mainly converted into its dimers and oxidized products. At lower temperature, dihydromyricetin in DMEM showed higher stability. Vitamin C increased the stability of dihydromyricetin in DMEM probably due to its high antioxidant potential.
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Affiliation(s)
- H L Zhang
- Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - M L Wang
- Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - L Z Yi
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, Yunnan 650500, China.
| | - P Högger
- Institut für Pharmazie und Lebensmittelchemie, Universität Würzburg, 97074 Würzburg, Germany.
| | - R Arroo
- De Montfort University - Leicester School of Pharmacy, The Gateway, Leicester LE1 9BH, UK.
| | - V K Bajpai
- Department of Energy and Materials Engineering, Dongguk University-Seoul, 30 Pildong-ro 1-gil, Seoul 04620, Republic of Korea
| | - M A Prieto
- Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E-32004 Ourense, Spain.
| | - X J Chen
- Institute of Chinese Medical Sciences, University of Macau, Macao, China.
| | - J Simal-Gandara
- Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E-32004 Ourense, Spain.
| | - H Cao
- Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E-32004 Ourense, Spain; College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
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9
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Wan J, Shao Z, Jiang D, Gao H, Yang X. Curdlan production from cassava starch hydrolysates by Agrobacterium sp. DH-2. Bioprocess Biosyst Eng 2022; 45:969-979. [PMID: 35312865 DOI: 10.1007/s00449-022-02718-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/07/2022] [Indexed: 11/30/2022]
Abstract
Curdlan is an edible microbial polysaccharide and can be used in food, biomedical and biomaterial fields. To reduce the cost of curdlan production, this study investigated the suitability of cassava starch hydrolysates as carbon source for curdlan production. Cassava starch was hydrolyzed into maltose syrup using β-amylase and pullulanase at various enzyme dosages, temperature, time and addition order of two enzymes. The maltose yield of 53.17% was achieved at starch loading 30% by simultaneous addition β-amylase 210 U/g starch and pullulanase 3 U/g starch at 60 °C for 9 h. Cassava starch hydrolysates were used as carbon source for curdlan production by Agrobacterium sp. DH-2. The curdlan production reached 28.4 g/L with the yield of 0.79 g/g consumed sugar and molecular weight of 1.26 × 106 Da at 96 h with cassava starch hydrolysate at 90 g/L initial sugar concentration. Curdlan produced from cassava starch hydrolysates was characterized using FT-IR spectra and thermo gravimetric analysis. This work indicated that cassava starch was a potential renewable feedstock for curdlan production.
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Affiliation(s)
- Jie Wan
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China
| | - Zhiyu Shao
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China
| | - Deming Jiang
- School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Hongliang Gao
- School of Life Sciences, East China Normal University, Shanghai, 200241, China.
| | - Xuexia Yang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.
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10
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Umair M, Sultana T, Xiaoyu Z, Senan AM, Jabbar S, Khan L, Abid M, Murtaza MA, Kuldeep D, Al‐Areqi NAS, Zhaoxin L. LC-ESI-QTOF/MS characterization of antimicrobial compounds with their action mode extracted from vine tea ( Ampelopsis grossedentata) leaves. Food Sci Nutr 2022; 10:422-435. [PMID: 35154679 PMCID: PMC8825723 DOI: 10.1002/fsn3.2679] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 10/10/2021] [Accepted: 10/20/2021] [Indexed: 12/23/2022] Open
Abstract
Vine tea (Ampelopsis grossedentata) is a tea plant cultivated south of the Chinese Yangtze River. It has anti-inflammatory properties and is used to normalize blood circulation and detoxification. The leaves of vine tea are the most abundant source of flavonoids, such as dihydromyricetin and myricetin. However, as the main bioactive flavonoid in vine tea, dihydromyricetin was the main focus of previous research. This study aimed to explore the antibacterial activities of vine tea against selected foodborne pathogens. The antimicrobial activity of vine tea extract was evaluated by the agar well diffusion method. Cell membrane integrity and bactericidal kinetics, along with physical damage to the cell membrane, were also observed. The extract was analyzed using a high-performance liquid chromatography-diode array detector (HPLC-DAD), and the results were confirmed using a modified version of a previously published method that combined liquid chromatography and electrospray-ionized quadrupole time-of-flight mass spectrometry (LC-ESI-QTOF/MS). Cell membrane integrity and bactericidal kinetics were determined by releasing intracellular material in suspension and monitoring it at 260 nm using an ultraviolet (UV) spectrophotometer. A scanning electron microscope (SEM) was used to detect morphological alterations and physical damage to the cell membrane. Six compounds were isolated successfully: (1) myricetin (C15H10O8), (2) myricetin 3-O-rhamnoside (C21H20O12), (3) 5,7,8,3,4-pentahydroxyisoflavone (C15H10O7), (4) dihydroquercetin (C15H12O7), (5) 6,8-dihydroxykaempferol (C15H10O8), and (6) ellagic acid glucoside (C20H16O13). Among these bioactive compounds, C15H10O7 was found to have vigorous antimicrobial activity against Bacillus cereus (AS11846) and Staphylococcus aureus (CMCCB26003). A dose-dependent bactericidal kinetics with a higher degree of absorbance at optical density 260 (OD260) was observed when the bacterial suspension was incubated with C15H10O7 for 8 h. Furthermore, a scanning electron microscope study revealed physical damage to the cell membrane. In addition, the action mode of C15H10O7 was on the cell wall of the target microorganism. Together, these results suggest that C15H10O7 has vigorous antimicrobial activity and can be used as a potent antimicrobial agent in the food processing industry.
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Affiliation(s)
- Muhammad Umair
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Tayyaba Sultana
- College of Public AdministrationNanjing Agriculture UniversityNanjingChina
| | - Zhu Xiaoyu
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Ahmed M. Senan
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Saqib Jabbar
- Food Science Research Institute (FSRI)National Agricultural Research CentreIslamabadPakistan
| | - Labiba Khan
- Food Science Research Institute (FSRI)National Agricultural Research CentreIslamabadPakistan
| | - Muhammad Abid
- Institute of Food and Nutritional SciencesPir Mehr Ali Shah, Arid Agriculture University RawalpindiRawalpindiPakistan
| | - Mian Anjum Murtaza
- Institute of Food Science and NutritionUniversity of SargodhaSargodhaPakistan
| | - Dhama Kuldeep
- Division of PathologyICAR‐Indian Veterinary, Research InstituteIzatnagarIndia
| | - Niyazi A. S. Al‐Areqi
- Department of ChemistryFaculty of Applied ScienceTaiz UniversityTaizRepublic of Yemen
| | - Lu Zhaoxin
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
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11
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Sun CC, Yin ZP, Chen JG, Wang WJ, Zheng GD, Li JE, Chen LL, Zhang QF. Dihydromyricetin Improves Cognitive Impairments in d-Galactose-Induced Aging Mice through Regulating Oxidative Stress and Inhibition of Acetylcholinesterase. Mol Nutr Food Res 2022; 66:e2101002. [PMID: 34932880 DOI: 10.1002/mnfr.202101002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/02/2021] [Indexed: 02/05/2023]
Abstract
SCOPE Alzheimer's disease (AD) is a neurodegenerative disease with phenomena of cognitive impairments. Oxidative stress and cholinergic system dysfunction are two widely studied pathogenesis of AD. Dihydromyricetin (DMY) is a natural dihydroflavonol with many bioactivities. In this study, it is aimed to investigate the effects of DMY on cognitive impairment in d-galactose (d-gal) induced aging mice. METHODS AND RESULTS Mice are intraperitoneally injected with d-gal for 16 weeks, and DMY is supplemented in drinking water. The results show that DMY significantly improves d-gal-induced cognitive impairments in novel object recognition and Y-maze studies. H&E and TUNEL staining show that DMY could improve histopathological changes and cell apoptosis in mice brain. DMY effectively induces the activities of catalase, superoxide dismutase and glutathione peroxidase, and reduces malondialdehyde level in mice brain and liver. Furthermore, DMY reduces cholinergic injury by inhibiting the activity of Acetylcholinesterase (AChE) in mice brain. In vitro studies show that DMY is a non-competitive inhibitor of AChE with IC50 value of 161.2 µg mL-1 . CONCLUSION DMY alleviates the cognitive impairments in d-gal-induced aging mice partly through regulating oxidative stress and inhibition of acetylcholinesterase.
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Affiliation(s)
- Cui-Cui Sun
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Zhong-Ping Yin
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Ji-Guang Chen
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Wen-Jun Wang
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Guo-Dong Zheng
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Jing-En Li
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Ling-Li Chen
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Qing-Feng Zhang
- Jiangxi Key Laboratory of Natural Product and Functional Food, College of Food Science and Engineering, Jiangxi Agricultural University, Nanchang, 330045, China
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12
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Sun Y, Liu S, Yang S, Chen C, Yang Y, Lin M, Liu C, Wang W, Zhou X, Ai Q, Wang W, Chen N. Mechanism of Dihydromyricetin on Inflammatory Diseases. Front Pharmacol 2022; 12:794563. [PMID: 35115939 PMCID: PMC8804380 DOI: 10.3389/fphar.2021.794563] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/30/2021] [Indexed: 12/21/2022] Open
Abstract
Inflammation plays a crucial role in a variety of diseases, including diabetes, arthritis, asthma, Alzheimer’s disease (AD), acute cerebral stroke, cancer, hypertension, and myocardial ischemia. Therefore, we need to solve the problem urgently for the study of inflammation-related diseases. Dihydromyricetin (DHM) is a flavonoid mainly derived from Nekemias grossedentata (Hand.-Mazz.) J.Wen and Z.L.Nie (N.grossedentata). DHM possesses many pharmacological effects, including anti-inflammatory (NLRP-3, NF-κB, cytokines, and neuroinflammation), antioxidant, improving mitochondrial dysfunction, and regulating autophagy and so on. In this review, we consulted the studies in the recent 20 years and summarized the mechanism of DHM in inflammation-related diseases. In addition, we also introduced the source, chemical structure, chemical properties, and toxicity of DHM in this review. We aim to deepen our understanding of DHM on inflammation-related diseases, clarify the relevant molecular mechanisms, and find out the problems and solutions that need to be solved urgently. Providing new ideas for DHM drug research and development, as well as broaden the horizons of clinical treatment of inflammation-related diseases in this review. Moreover, the failure of clinical transformation of DHM poses a great challenge for DHM as an inflammation related disease.
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Affiliation(s)
- Yang Sun
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Shasha Liu
- Pharmacy Department, Xiangtan Central Hospital, Xiangtan, China
| | - Songwei Yang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Chen Chen
- Department of Pharmacy, The First Hospital of Lanzhou University, Lanzhou, China
| | - Yantao Yang
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Meiyu Lin
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Chao Liu
- Zhangjiajie Meicha Technology Research Center, Hunan Qiankun Biotechnology Co., Ltd, Zhangjiajie, China
| | - Wenmao Wang
- Zhangjiajie Meicha Technology Research Center, Hunan Qiankun Biotechnology Co., Ltd, Zhangjiajie, China
| | - Xudong Zhou
- TCM and Ethnomedicine Innovation and Development International Laboratory, Innovative Materia Medica Research Institute, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Qidi Ai
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- *Correspondence: Qidi Ai, ; Wei Wang, ; Naihong Chen,
| | - Wei Wang
- TCM and Ethnomedicine Innovation and Development International Laboratory, Innovative Materia Medica Research Institute, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- *Correspondence: Qidi Ai, ; Wei Wang, ; Naihong Chen,
| | - Naihong Chen
- Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces and College of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica and Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Qidi Ai, ; Wei Wang, ; Naihong Chen,
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13
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Zhang H, Caprioli G, Hussain H, Khoi Le NP, Farag MA, Xiao J. A multifaceted review on dihydromyricetin resources, extraction, bioavailability, biotransformation, bioactivities, and food applications with future perspectives to maximize its value. EFOOD 2021. [DOI: 10.53365/efood.k/143518] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Natural bioactive compounds present a better alternative to prevent and treat chronic diseases owing to their lower toxicity and abundant resources. (+)-Dihydromyricetin (DMY) is a flavanonol, possessing numerous interesting bioactivities with abundant resources. This review provides a comprehensive overview of the recent advances in DMY natural resources, stereoisomerism, physicochemical properties, extraction, biosynthesis, pharmacokinetics, and biotransformation. Stereoisomerism of DMY should be considered for better indication of its efficacy. Biotechnological approach presents a potential tool for the production of DMY using microbial cell factories. DMY high instability is related to its powerful antioxidant capacity due to pyrogallol moiety in ring B, and whether preparation of other analogues could demonstrate improved properties. DMY demonstrates poor bioavailability based on its low solubility and permeability with several attempts to improve its pharmacokinetics and efficacy. DMY possesses various pharmacological effects, which have been proven by many in vitro and in vivo experiments, while clinical trials are rather scarce, with underlying action mechanisms remaining unclear. Consequently, to maximize the usefulness of DMY in nutraceuticals, improvement in bioavailability, and better understanding of its actions mechanisms and drug interactions ought to be examined in the future along with more clinical evidence.
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