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Li S, Sha X, Sun S, Zhang X, Guo D, Huang S. Study on the stability of molecular chirality and the configuration protection of dihydromyricetin in vine tea. J Food Sci 2024; 89:3569-3576. [PMID: 38745380 DOI: 10.1111/1750-3841.17105] [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: 01/22/2024] [Revised: 04/10/2024] [Accepted: 04/21/2024] [Indexed: 05/16/2024]
Abstract
This study aims to investigate the impact of four key factors, namely, temperature, water source, metal ion, and pH, on the stability of molecular chirality of dihydromyricetin (DMY) and proposed effective strategies for configuration protection. The findings reveal that temperatures exceeding 80°C could accelerate the racemization process of DMY, with a significant increase in racemization observed at 100°C. In addition, DMY exhibited heightened stability in ultrapure water as compared to various water sources, including pure water-1, pure water-2, mineral water, and running water. Notably, the presence of Fe2+ displayed an inhibitory effect on the racemization of DMY, whereas Mg2+, Ca2+, and Mn2+ showed a substantial promotional effect. Additionally, acidic conditions (pH < 5.0) were found to be protective for maintaining the stability of DMY, whereas alkaline conditions (pH > 9.0) were observed to be detrimental. Meanwhile, we first identified the presence of another pair of DMY isomers in this work.
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Affiliation(s)
- Shuang Li
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo, China
| | - Xuming Sha
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo, China
| | - Shanshan Sun
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo, China
| | - Xing Zhang
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo, China
| | - Dandan Guo
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo, China
| | - Shaohua Huang
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo, China
- Qian Xuesen Collaborative Research Center for Astrochemistry and Space Life Sciences, Ningbo University, Ningbo, China
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Rehman IU, Saleem M, Raza SA, Bashir S, Muhammad T, Asghar S, Qamar MU, Shah TA, Bin Jardan YA, Mekonnen AB, Bourhia M. Anti-ulcerative colitis effects of chemically characterized extracts from C alliandra haematocephala in acetic acid-induced ulcerative colitis. Front Chem 2024; 12:1291230. [PMID: 38476652 PMCID: PMC10927971 DOI: 10.3389/fchem.2024.1291230] [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] [Received: 09/08/2023] [Accepted: 01/30/2024] [Indexed: 03/14/2024] Open
Abstract
Background: Ulcerative colitis is a chronic immune-mediated inflammatory bowel disease that involves inflammation and ulcers of the colon and rectum. To date, no definite cure for this disease is available. Objective: The objective of the current study was to assess the effect of Calliandra haematocephala on inflammatory mediators and oxidative stress markers for the exploration of its anti-ulcerative colitis activity in rat models of acetic acid-induced ulcerative colitis. Methods: Methanolic and n-hexane extracts of areal parts of the plant were prepared by cold extraction method. Phytochemical analysis of both extracts was performed by qualitative analysis, quantitative methods, and high-performance liquid chromatography (HPLC). Prednisone at 2 mg/kg dose and plant extracts at 250, 500, and 750 mg/kg doses were given to Wistar rats for 11 days, which were given acetic acid on 8th day through the trans-rectal route for the induction of ulcerative colitis. A comparison of treatment groups was done with a normal control group and a colitis control group. To evaluate the anti-ulcerative colitis activity of Calliandra haematocephala, different parameters such as colon macroscopic damage, ulcer index, oxidative stress markers, histopathological examination, and mRNA expression of pro and anti-inflammatory mediators were evaluated. mRNA expression analysis was carried out by reverse transcription quantitative real-time polymerase chain reaction (RT-qPCR). Results: The phytochemical evaluation revealed polyphenols, flavonoids, tannins, alkaloids, and sterols in both extracts of the plant. Results of the present study exhibited that both extracts attenuated the large bowel inflammation and prevented colon ulceration at all tested doses. Macroscopic damage and ulcer scoreswere significantly decreased by both extracts. Malondialdehyde (MDA) levels and nitrite/nitrate concentrations in colon tissues were returned to normal levels while superoxide dismutase (SOD) activity was significantly improved by all doses. Histopathological examination exhibited that both extracts prevented the inflammatory changes, cellular infiltration, and colon thickening. Gene expression analysis by RT-qPCR revealed the downregulation of pro-inflammatory markers such as tumor necrosis factor-alpha (TNF-α) and cyclooxygenase-2 (COX-2) whereas the anti-inflammatory cytokines including Interleukin-4 (IL-4) and Interleukin-10 (IL-10) were found to be upregulated in treated rats. Conclusion: It was concluded based on study outcomes that methanolic and n-hexane extracts of Calliandra haematocephala exhibited anti-ulcerative colitis activity through modulation of antioxidant defense mechanisms and the immune system. In this context, C. haematocephala can be considered as a potential therapeutic approach for cure of ulcerative colitis after bioassay-directed isolation of bioactive phytochemicals and clinical evaluation.
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Affiliation(s)
- Inaam Ur Rehman
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Mohammad Saleem
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Syed Atif Raza
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Saher Bashir
- Department of Chemistry, Faculty of Sciences, University of the Punjab, Lahore, Pakistan
| | - Taha Muhammad
- Shalamar Medical and Dental College, Lahore, Pakistan
| | - Shahzad Asghar
- Department of Pharmacy, University of South Asia, Lahore, Pakistan
| | - Muhammad Usman Qamar
- Institute of Microbiology, Faculty of Life Sciences, Government College University Faisalabad, Faisalabad, Pakistan
- Division of Infectious Diseases, Department of Medicine, Geneva University Hospitals, Geneva, Switzerland
- Department of Microbiology and Molecular Medicine, University of Geneva, Geneva, Switzerland
| | - Tawaf Ali Shah
- College of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Yousef A. Bin Jardan
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | | | - Mohammed Bourhia
- Laboratory of Biotechnology and Natural Resources Valorization, Faculty of Sciences of Agadir, Ibnou Zohr University, Agadir, Morocco
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Mansour FR, Abdallah IA, Bedair A, Hamed M. Analytical Methods for the Determination of Quercetin and Quercetin Glycosides in Pharmaceuticals and Biological Samples. Crit Rev Anal Chem 2023:1-26. [PMID: 37898879 DOI: 10.1080/10408347.2023.2269421] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Flavonoids are plant-derived compounds that have several health benefits, including antioxidative, anti-inflammatory, anti-mutagenic, and anti-carcinogenic effects. Quercetin is a flavonoid that is widely present in various fruits, vegetables, and drinks. Accurate determination of quercetin in different samples is of great importance for its potential health benefits. This review, is an overview of sample preparation and determination methods for quercetin in diverse matrices. Previous research on sample preparation and determination methods for quercetin are summarized, highlighting the advantages and disadvantages of each method and providing insights into recent developments in quercetin sample treatment. Various analytical techniques are discussed including spectroscopic, chromatographic, electrophoretic, and electrochemical methods for the determination of quercetin and its derivatives in different samples. UV-Vis (Ultraviolet-visible) spectrophotometry is simple and inexpensive but lacks selectivity. Chromatographic techniques (HPLC, GC) offer selectivity and sensitivity, while electrophoretic and electrochemical methods provide high resolution and low detection limits, respectively. The aim of this review is to comprehensively explore the determination methods for quercetin and quercetin glycosides in diverse matrices, with emphasis on pharmaceutical and biological samples. The review also provides a theoretical basis for method development and application for the analysis of quercetin and quercetin glycosides in real samples.
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Affiliation(s)
- Fotouh R Mansour
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Tanta University, Tanta 31111, Egypt
| | - Inas A Abdallah
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat City 32897, Monufia, Egypt
| | - Alaa Bedair
- Department of Analytical Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat City 32897, Monufia, Egypt
| | - Mahmoud Hamed
- School of Information Technology and Computer Science (ITCS), Nile University, Giza, Egypt
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Kim MY, Kim MR, Hwang HS, Lee HJ. Hovenia dulcis Thunb. Fruit Extract Attenuates Psoriatic Skin Inflammation in Tumor Necrosis Factor- α-Stimulated Human Keratinocyte HaCaT Cells In Vitro. J Med Food 2023; 26:540-549. [PMID: 37428516 DOI: 10.1089/jmf.2022.k.0148] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023] Open
Abstract
Hovenia dulcis Thunb. fruit (HDF) is traditionally used for treating liver diseases and alcohol poisoning. The purpose of this study was to explore the effects of HDF on hyperproliferation, levels of inflammatory cytokines, and signaling mechanisms in human psoriatic keratinocyte HaCaT cells. HDF showed a preventive effect on tumor necrosis factor-α (TNF-α)-induced abnormal proliferation of psoriatic keratinocytes. Furthermore, real-time reverse transcription-PCR analysis showed that HDF suppressed the expressions of inflammatory cytokines; interleukin (IL)-1α and IL-1β and chemokines; CCL-20 and CXCL-8 in TNF-α-induced HaCaT cells. Western blotting revealed that HDF suppressed the levels of phosphorylated IκB and STAT3 together with a decline in the levels of phosphorylated mitogen-activated protein kinases (MAPKs). These outcomes indicate that HDF prevents the abnormal proliferation of keratinocytes and modulates inflammatory responses by suppressing nuclear factor-κB (NF-κB) and STAT3 activation through downregulation of the MAPK signaling pathway in TNF-α-induced psoriatic keratinocytes. Our study demonstrates that HDF is prospective and beneficial for psoriatic skin inflammation.
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Affiliation(s)
- Min Young Kim
- School of Cosmetic Science and Beauty Biotechnology, Semyung University, Jecheon, Korea
| | - Mi Ran Kim
- School of Cosmetic Science and Beauty Biotechnology, Semyung University, Jecheon, Korea
| | - Hyung Seo Hwang
- School of Cosmetic Science and Beauty Biotechnology, Semyung University, Jecheon, Korea
| | - Hwa Jin Lee
- School of Industrial Bio-Pharmaceutical Science, Semyung University, Jecheon, Korea
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Lv P, Zhu F, Lv M, Bao J, Lv L, Xu X, Tao Y. Comparative analysis of the liver-protective effects of raw and stir-fried semen of Hovenia dulcis in rats via gas chromatography-mass spectrometry-based serum metabolomic profiling and chemometrics. Biomed Chromatogr 2023; 37:e5578. [PMID: 36601730 DOI: 10.1002/bmc.5578] [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: 10/06/2022] [Revised: 12/22/2022] [Accepted: 01/03/2023] [Indexed: 01/06/2023]
Abstract
In this study, we used a serum metabolomics methodology based on GC coupled with MS (GC-MS) to investigate the liver-protective effects of raw and stir-fried semen of Hovenia dulcis in rats models of carbon tetrachloride-induced liver injury. Multivariate statistical analysis, such as principal component analysis and orthogonal partial least squares discriminant analysis, were performed to examine changes in the metabolic state of rats with carbon tetrachloride-induced liver injury, as well as the recovery pattern of rats pretreated with the raw and stir-fried semen of H. dulcis. Liver tissues were subjected to histopathological examination. A total of 47 biomarkers were predicted to contribute to the dynamic pathological processes in the liver injury, such as phenylalanine, glutamic acid, glycine, arachidonic acid and linoleic acid. Further analysis revealed that pathways associated with phenylalanine, tyrosine and tryptophan biosynthesis, and linoleic acid metabolism were altered in the injured liver, and that pretreatment with raw and stir-fried semen of H. dulcis abolished the changes in the aforementioned metabolic pathways.
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Affiliation(s)
- Pan Lv
- Clinical Laboratory, Yongkang First People's Hospital Affiliated to Hangzhou Medical College, Yongkang, China
| | - Fei Zhu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Meiyan Lv
- Clinical Laboratory, Yongkang First People's Hospital Affiliated to Hangzhou Medical College, Yongkang, China
| | - Jiaqi Bao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Linying Lv
- Clinical Laboratory, Yongkang First People's Hospital Affiliated to Hangzhou Medical College, Yongkang, China
| | - Xiangwei Xu
- Clinical Laboratory, Yongkang First People's Hospital Affiliated to Hangzhou Medical College, Yongkang, China
| | - Yi Tao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
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6
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Zhang X, Zhang L, Zhang Y, Xiong T, Niu Y, Huang Y. Extracting myricetin and dihydromyricetin simultaneously from Hovenia acerba seed by Ultrasound-Assisted extraction on a lab and small Pilot-Scale. ULTRASONICS SONOCHEMISTRY 2023; 93:106304. [PMID: 36682213 PMCID: PMC9876941 DOI: 10.1016/j.ultsonch.2023.106304] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 05/26/2023]
Abstract
The flavonoids myricetin and dihydromyricetin are significant components of Hovenia acerba seed. In this work, myricetin and dihydromyricetin were extracted from Hovenia acerba seed using an ultrasound-assisted technique, and the extraction parameters were adjusted using the response surface design approach. HPLC was used to assess the yield of myricetin and dihydromyricetin. According to the data, myricetin and dihydromyricetin yields were 0.53 mg/g and 4.06 mg/g at a 60 % ethanol solution concentration, 180 W of ultrasonic irradiation power, a 20 mL/g ratio of liquid to solid, and a 40 °C optimal extraction temperature. The aforementioned findings are virtually in agreement with the experimental findings suggested by the model. The study mentioned above thus offers a means of separating and developing useful components of natural goods.
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Affiliation(s)
- Xiaonan Zhang
- Jiaying University, Meizhou 514015, China
- Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic, Agricultural Resources in Mountainous Areas, Meizhou 514015, China
- Northeast Agricultural University, Food Science College, Harbin 150030, China
| | - Lubin Zhang
- Jiaying University, Meizhou 514015, China
- Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic, Agricultural Resources in Mountainous Areas, Meizhou 514015, China
| | - Yingdi Zhang
- Jiaying University, Meizhou 514015, China
- Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic, Agricultural Resources in Mountainous Areas, Meizhou 514015, China
- Northeast Agricultural University, Food Science College, Harbin 150030, China
| | - Tingting Xiong
- Jiaying University, Meizhou 514015, China
- Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic, Agricultural Resources in Mountainous Areas, Meizhou 514015, China
- Northeast Agricultural University, Food Science College, Harbin 150030, China
| | - Yaqian Niu
- Jiaying University, Meizhou 514015, China
- Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic, Agricultural Resources in Mountainous Areas, Meizhou 514015, China
- Northeast Agricultural University, Food Science College, Harbin 150030, China
| | - Yan Huang
- Jiaying University, Meizhou 514015, China
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7
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Billowria K, Ali R, Rangra NK, Kumar R, Chawla PA. Bioactive Flavonoids: A Comprehensive Review on Pharmacokinetics and Analytical Aspects. Crit Rev Anal Chem 2022:1-15. [PMID: 35930461 DOI: 10.1080/10408347.2022.2105641] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Flavonoids are a diversified group of natural substances which were discovered to provide a variety of health benefits in human beings. Vegetables, fruits, wine and tea are the primary flavonoid dietary sources for humans and as the flavonoids are so closely connected to human dietary items and health, it is vital to explore the structural-activity connection. The arrangement, replacement of functional groups, and total number of hydroxyl groups around flavonoid's nucleus structure affect their biological activity, metabolism, and bioavailability. Various flavonoids have been proven to have hepatoprotective properties, that help in the prevention of coronary heart disease. Similarly, these flavonoids also possess anticancer, and anti-inflammatory activities. Flavonoids have been found to have a functional and structural link with their enzyme inhibitory action, that appears to have antiviral effect through acting as antioxidants, damaging cell membranes, blocking enzymes, activating mechanisms of host self-defense, and limiting virus penetration and attaching to cells. Identification, characterization, isolation, and biological role of flavonoids, as well as their uses on health advantages, are all major topics in research and development currently. This review represents a summary of various sources of flavonoids, class, subclass, their chemical structures, biological activities, the pharmacokinetics of flavonoids and various analytical, bioanalytical and electrochemical methods for determination of flavonoids from different matrices.
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Affiliation(s)
- Koushal Billowria
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga, India
| | - Rouchan Ali
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga, India
| | | | - Ram Kumar
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga, India
| | - Pooja A Chawla
- Department of Pharmaceutical Analysis, ISF College of Pharmacy, Moga, India
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Zuo HL, Huang HY, Lin YCD, Cai XX, Kong XJ, Luo DL, Zhou YH, Huang HD. Enzyme Activity of Natural Products on Cytochrome P450. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020515. [PMID: 35056827 PMCID: PMC8779343 DOI: 10.3390/molecules27020515] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 12/27/2022]
Abstract
Drug-metabolizing enzymes, particularly the cytochrome P450 (CYP450) monooxygenases, play a pivotal role in pharmacokinetics. CYP450 enzymes can be affected by various xenobiotic substrates, which will eventually be responsible for most metabolism-based herb–herb or herb–drug interactions, usually involving competition with another drug for the same enzyme binding site. Compounds from herbal or natural products are involved in many scenarios in the context of such interactions. These interactions are decisive both in drug discovery regarding the synergistic effects, and drug application regarding unwanted side effects. Herein, this review was conducted as a comprehensive compilation of the effects of herbal ingredients on CYP450 enzymes. Nearly 500 publications reporting botanicals’ effects on CYP450s were collected and analyzed. The countries focusing on this topic were summarized, the identified herbal ingredients affecting enzyme activity of CYP450s, as well as methods identifying the inhibitory/inducing effects were reviewed. Inhibitory effects of botanicals on CYP450 enzymes may contribute to synergistic effects, such as herbal formulae/prescriptions, or lead to therapeutic failure, or even increase concentrations of conventional medicines causing serious adverse events. Conducting this review may help in metabolism-based drug combination discovery, and in the evaluation of the safety profile of natural products used therapeutically.
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Affiliation(s)
- Hua-Li Zuo
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China; (H.-L.Z.); (H.-Y.H.); (Y.-C.-D.L.); (X.-X.C.); (D.-L.L.); (Y.-H.Z.)
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China
- School of Computer Science and Technology, University of Science and Technology of China, Hefei 230027, China
| | - Hsi-Yuan Huang
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China; (H.-L.Z.); (H.-Y.H.); (Y.-C.-D.L.); (X.-X.C.); (D.-L.L.); (Y.-H.Z.)
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China
| | - Yang-Chi-Dung Lin
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China; (H.-L.Z.); (H.-Y.H.); (Y.-C.-D.L.); (X.-X.C.); (D.-L.L.); (Y.-H.Z.)
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China
| | - Xiao-Xuan Cai
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China; (H.-L.Z.); (H.-Y.H.); (Y.-C.-D.L.); (X.-X.C.); (D.-L.L.); (Y.-H.Z.)
| | - Xiang-Jun Kong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China;
| | - Dai-Lin Luo
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China; (H.-L.Z.); (H.-Y.H.); (Y.-C.-D.L.); (X.-X.C.); (D.-L.L.); (Y.-H.Z.)
| | - Yu-Heng Zhou
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China; (H.-L.Z.); (H.-Y.H.); (Y.-C.-D.L.); (X.-X.C.); (D.-L.L.); (Y.-H.Z.)
| | - Hsien-Da Huang
- School of Life and Health Sciences, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China; (H.-L.Z.); (H.-Y.H.); (Y.-C.-D.L.); (X.-X.C.); (D.-L.L.); (Y.-H.Z.)
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Shenzhen 518172, China
- Correspondence: ; Tel.: +86-0755-2351-9601
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Ampelopsin Inhibits Cell Proliferation and Induces Apoptosis in HL60 and K562 Leukemia Cells by Downregulating AKT and NF-κB Signaling Pathways. Int J Mol Sci 2021; 22:ijms22084265. [PMID: 33924032 PMCID: PMC8073078 DOI: 10.3390/ijms22084265] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/12/2021] [Accepted: 04/19/2021] [Indexed: 12/24/2022] Open
Abstract
Leukemia is a type of blood cancer caused by the rapid proliferation of abnormal white blood cells. Currently, several treatment options, including chemotherapy, radiation therapy, and bone marrow transplantation, are used to treat leukemia, but the morbidity and mortality rates of patients with leukemia are still high. Therefore, there is still a need to develop more selective and less toxic drugs for the effective treatment of leukemia. Ampelopsin, also known as dihydromyricetin, is a plant-derived flavonoid that possesses multiple pharmacological functions, including antibacterial, anti-inflammatory, antioxidative, antiangiogenic, and anticancer activities. However, the anticancer effect and mechanism of action of ampelopsin in leukemia remain unclear. In this study, we evaluated the antileukemic effect of ampelopsin against acute promyelocytic HL60 and chronic myelogenous K562 leukemia cells. Ampelopsin significantly inhibited the proliferation of both leukemia cell lines at concentrations that did not affect normal cell viability. Ampelopsin induced cell cycle arrest at the sub-G1 phase in HL60 cells but the S phase in K562 cells. In addition, ampelopsin regulated the expression of cyclins, cyclin-dependent kinases (CDKs), and CDK inhibitors differently in each leukemia cell. Ampelopsin also induced apoptosis in both leukemia cell lines through nuclear condensation, loss of mitochondrial membrane potential, increase in reactive oxygen species (ROS) generation, activation of caspase-9, caspase-3, and poly ADP-ribose polymerase (PARP), and regulation of Bcl-2 family members. Furthermore, the antileukemic effect of ampelopsin was associated with the downregulation of AKT and NF-κB signaling pathways. Moreover, ampelopsin suppressed the expression levels of leukemia stemness markers, such as Oct4, Sox2, CD44, and CD133. Taken together, our findings suggest that ampelopsin may be an attractive chemotherapeutic agent against leukemia.
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10
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Umair M, Jabbar S, Sultana T, Ayub Z, Abdelgader SA, Xiaoyu Z, Chong Z, Fengxia L, Xiaomei B, Zhaoxin L. Chirality of the biomolecules enhanced its stereospecific action of dihydromyricetin enantiomers. Food Sci Nutr 2020; 8:4843-4856. [PMID: 32994946 PMCID: PMC7500803 DOI: 10.1002/fsn3.1766] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/06/2020] [Accepted: 06/13/2020] [Indexed: 02/03/2023] Open
Abstract
The present study explores the effect of chirality of the biological macromolecules, its functional aspects, and its interaction with other food components. Dihydromyricetin (DHM) is a natural novel flavonol isolated from the vine tea (Ampelopsis grossedentata) leaves. However, limited progress in enantiopure separation methods of such compounds hinder in the development of enantiopure functional studies. This study is an attempt to develop a simple, accurate, and sensitive extraction method for the separation of the enantiopure DHM from vine tea leaves. In addition, the identification and purity of the extracted enantiopure (-)-DHM were further determined by the proton nuclear magnetic resonance (1H-NMR) and the carbon nuclear magnetic resonance (13C-NMR). The study further evaluates the antimicrobial activity of isolated (-)-DHM in comparison with racemate (+)-DHM, against selected foodborne pathogens, whereas the action mode of enantiopure (-)-DHM to increase the integrity and permeability of the bacterial cell membrane was visualized by confocal laser scanning microscopy using green fluorescence nucleic acid dye (SYTO-9) and propidium iodide (PI). Moreover, the morphological changes in the bacterial cell structure were observed through field emission scanning electron microscope. During analyzing the cell morphology of B. cereus (AS11846), it was confirmed that enantiopure (-)-DHM could increase the cell permeability that leads to the released of internal cell constituents and, thus, causes cell death. Therefore, the present study provides an insight into the advancement of enantiopure isolation along with its antimicrobial effect which could be served as an effective approach of biosafety.
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Affiliation(s)
- Muhammad Umair
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Saqib Jabbar
- Food Science Research Institute (FSRI)National Agricultural Research Centre (NARC)IslamabadPakistan
| | - Tayyaba Sultana
- College of Public AdministrationNanjing Agriculture UniversityNanjingChina
| | - Zubaria Ayub
- Institute of Home SciencesUniversity of AgricultureFaisalabadPakistan
| | | | - Zhu Xiaoyu
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Zhang Chong
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Lu Fengxia
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Bie Xiaomei
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Lu Zhaoxin
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
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11
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Turck D, Castenmiller J, De Henauw S, Hirsch‐Ernst KI, Kearney J, Maciuk A, Mangelsdorf I, McArdle HJ, Naska A, Pelaez C, Pentieva K, Siani A, Thies F, Tsabouri S, Vinceti M, Cubadda F, Frenzel T, Heinonen M, Marchelli R, Neuhäuser‐Berthold M, Poulsen M, Schlatter JR, van Loveren H, Gelbmann W, Knutsen HK. Safety of hot water extract of fruits and peduncles of Hovenia dulcis as a novel food pursuant to Regulation 1(EU) 2015/2283. EFSA J 2020; 18:e06196. [PMID: 32884582 PMCID: PMC7453392 DOI: 10.2903/j.efsa.2020.6196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Following a request from the European Commission, the EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA) was asked to deliver an opinion on the safety of 'Hovenia dulcis fruit extract' as a novel food (NF) for its use in food supplements. The NF concerns a hot water extract of sliced and dried fruits and peduncles of Hovenia dulcis Thun. The production process is described in sufficient detail but contains contradictory information regarding the mixing with another ingredient of the NF. The NF is comprised of mostly carbohydrates (about 90%), about 2% proteins, 5% moisture, less than 1% fat and about 2% ash. In addition, the NF contains small amounts of flavonoids such as dihydromyricetin, myricetin and quercetin. The Panel notes limitations of the data provided from the batch testing regarding proximate analyses and plant secondary metabolites. Given these limitations, the Panel considers that the data provided by the applicant do not demonstrate that different batches produced with the described production process meet the proposed specifications. The target population is the general adult population excluding pregnant and lactating women and people with a chronic disease, such as liver malfunction. Limited information was provided on a history of consumption of Hovenia dulcis fruits and on an extract approved in South Korea. A number of toxicological studies were performed. However, the study reports did not allow to verify that the test item was representative of the NF. The same applied to a human study provided by the applicant. The Panel concludes that the safety of the NF has not been established.
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Song G, Kim HL, Jung Y, Park J, Lee JH, Ahn KS, Kwak HJ, Um JY. Fruit of Hovenia dulcis Thunb. Induces Nonshivering Thermogenesis through Mitochondrial Biogenesis and Activation by SIRT1 in High-Fat Diet-Fed Obese Mice and Primary Cultured Brown Adipocytes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:6715-6725. [PMID: 32450691 DOI: 10.1021/acs.jafc.0c01117] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Brown adipocytes, which contain abundant mitochondria, use stored energy as fuel during a process named nonshivering thermogenesis. Thus, the pharmacological activation of thermogenesis in brown adipose tissue (BAT) has become a promising target for treating obesity. We investigated the effect of fruit of Hovenial dulcis Thunb. (FHD), a frequently used herbal treatment for liver diseases, on thermogenesis and its mechanism using primary cultured brown adipocytes and BAT of high-fat-diet (HFD)-induced obese mice. Thermogenesis-related factors including UCP1 and PGC1α increased with FHD treatment. FHD also increased mitochondrial biogenesis and activation factors such as nuclear respiratory factor (NRF)1 and oxidative phosphorylation (OXPHOS) complex. Furthermore, FHD increased the intercellular nicotinamide adenine dinucleotide (NAD+) level and sirtuin 1 (SIRT1) activity, which may be responsible for the activation of the thermogenic reaction. Overall, our results suggest that FHD can be a novel option for obesity treatment due to its thermogenic action through mitochondrial biogenesis and activation.
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Affiliation(s)
- Gahee Song
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hye-Lin Kim
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Comorbodity Research, KyungHee Institute of Convergence Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Yunu Jung
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Comorbodity Research, KyungHee Institute of Convergence Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jinbong Park
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Comorbodity Research, KyungHee Institute of Convergence Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jun Hee Lee
- Department of Comorbodity Research, KyungHee Institute of Convergence Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Sasang Constitutional Medicine, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Kwang Seok Ahn
- Department of Comorbodity Research, KyungHee Institute of Convergence Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyun Jeong Kwak
- Department of Life Science, College of Natural Sciences, Kyonggi University, Suwon 16227, Republic of Korea
| | - Jae-Young Um
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
- Department of Comorbodity Research, KyungHee Institute of Convergence Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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Polyphenolic-Protein-Polysaccharide Complexes from Hovenia dulcis: Insights into Extraction Methods on Their Physicochemical Properties and In Vitro Bioactivities. Foods 2020; 9:foods9040456. [PMID: 32276355 PMCID: PMC7230293 DOI: 10.3390/foods9040456] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 03/30/2020] [Accepted: 04/01/2020] [Indexed: 02/06/2023] Open
Abstract
Seven extraction methods, including hot water extraction (HWE), pressurized water extraction (PWE), ultrasound-assisted extraction, microwave-assisted extraction, ultrasound-assisted enzymatic extraction, high-speed shearing homogenization extraction, and ultrasound-microwave-assisted extraction, were utilized to extract polyphenolic-protein-polysaccharide complexes (PPPs) from Hovenia dulcis. Next, their physicochemical properties and in vitro antioxidant activities, antiglycation effects, and inhibition activities on α-glucosidase and α-amylase were studied and compared. The findings from this study indicate that various extraction processes exhibit notable influences on the physicochemical properties and in vitro bioactivities of PPPs. Extraction yields, contents of polyphenolics and flavonoids, apparent viscosities, molecular weights, molar ratios of monosaccharide compositions, and ratios of amino acid compositions in PPPs varied in different extraction methods. Furthermore, 13 phenolic compounds in PPPs, including rutin, myricitrin, myricetin, quercetin, kaempferol, protocatechuic acid, gallocatechin, p-hydroxybenzoic acid, ampelopsin, quercetin-7,4'-diglucoside, dihydroquercetin, 5-methylmyricetin, and naringenin, were identified. The relatively strong in vitro antioxidant activities, antiglycation effects, and inhibition activities on α-glucosidase and α-amylase were determined in both PPP-W and PPP-P obtained by HWE and PWE, respectively. The high content of total polyphenolics may be one of the main contributors to their in vitro bioactivities. The findings have shown that the PWE method can be an appropriate method to prepare PPPs with strong bioactivities for application in the functional food industry.
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Hoveniae Semen Seu Fructus Ethanol Extract Exhibits Anti-Inflammatory Activity via MAPK, AP-1, and STAT Signaling Pathways in LPS-Stimulated RAW 264.7 and Mouse Peritoneal Macrophages. Mediators Inflamm 2019; 2019:9184769. [PMID: 31565034 PMCID: PMC6746162 DOI: 10.1155/2019/9184769] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/16/2019] [Accepted: 07/08/2019] [Indexed: 12/24/2022] Open
Abstract
Hoveniae semen seu fructus (HSF, fruit and seed of Hovenia dulcis Thunb) is an important traditional herbal medicine and food supplement in East Asia for the treatment of liver diseases, alcohol poisoning, obesity, allergy, and cancer. HSF has also been reported to have anti-inflammatory activity, but the cellular mechanism of action is not fully understood. We assessed the anti-inflammatory properties of an HSF ethanol (HSFE) extract and explored its precise mechanism. The ability of HSFE to suppress inflammatory responses was investigated in a murine macrophage cell line, RAW 264.7, and mouse primary macrophages. Secretions of NO, proinflammatory cytokines, inflammatory factors, and related proteins were measured using the Griess assay, ELISA, Western blot analysis, and real-time PCR, respectively. In addition, the main components of HSFE were analyzed by HPLC, and their anti-inflammatory activity was confirmed. Our results showed that pretreatment of HSFE markedly reduced the expression of NO and iNOS without causing cytotoxicity and significantly attenuated secretion of proinflammatory cytokines, including TNF-α, IL-6, and IL-1β. In addition, HSFE strongly suppressed phosphorylation of MAPK and decreased the activation of AP-1, JAK2/STAT, and NF-κB in LPS-stimulated RAW 264.7 cells in a concentration-dependent manner. Furthermore, HSFE strongly suppressed the inflammatory cytokine levels in mouse peritoneal macrophages. Also, as a result of HPLC analysis, three main components, ampelopsin, taxifolin, and myricetin, were identified in the HSFE extract, and each compound effectively inhibited the secretion of inflammatory mediators induced by LPS. These findings show that HSFE exerts anti-inflammatory effects by suppressing the activation of MAPK, AP-1, JAK2/STAT, and NF-κB signaling pathways in LPS-stimulated macrophages. In addition, the anti-inflammatory efficacy of HSFE appears to be closely related to the action of the three main components. Therefore, HSFE appears to be a promising candidate for the treatment of inflammatory diseases.
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Liu D, Mao Y, Ding L, Zeng XA. Dihydromyricetin: A review on identification and quantification methods, biological activities, chemical stability, metabolism and approaches to enhance its bioavailability. Trends Food Sci Technol 2019; 91:586-597. [PMID: 32288229 PMCID: PMC7127391 DOI: 10.1016/j.tifs.2019.07.038] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/21/2019] [Accepted: 07/18/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Dihydromyricetin (DMY) is an important plant flavonoid, which has received great attention due to its health-benefiting activities, including antioxidant, antimicrobial, anti-inflammatory, anticancer, antidiabetic and neuroprotective activities. DMY capsules have been sold in US as a nutraceutical supplement to prevent alcoholic hangovers. The major disadvantage associated with DMY is its chemical instability and poor bioavailability caused by the combined effects of its low solubility and poor membrane permeability. This limits its practical use in the food and pharmaceutical fields. SCOPE AND APPROACH The present paper gives an overview of the current methods for the identification and quantification of DMY. Furthermore, recent findings regarding the main biological properties and chemical stability of DMY, the metabolism of DMY as well as different approaches to increase DMY bioavailability in both aqueous and lipid phases are discussed. KEY FINDINGS AND CONCLUSIONS Current trends on identification and quantification of DMY have been focused on spectral and chromatographic techniques. Many factors such as heat, pH, metal ions, could affect the chemical stability of DMY. Despite the diverse biological effects of DMY, DMY faces with the problem of poor bioavailability. Utilization of different delivery systems including solid dispersion, nanocapsule, microemuslion, cyclodextrin inclusion complexes, co-crystallization, phospholipid complexes, and chemical or enzymatic acylation has the potential to improve both the solubility and bioavailability. DMY digested in laboratory animals undergoes reduction, dehydroxylation, methylation, glucuronidation, and sulfation. Novel DMY delivery systems and basic pharmacokinetic studies of encapsulated DMY on higher animals and humans might be required in the future.
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Affiliation(s)
- Dan Liu
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
- Corresponding author. Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China.
| | - Yiqin Mao
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Lijun Ding
- Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Xin-An Zeng
- South China University of Technology, School of Food Science & Engineering, Guangzhou, 510640, Guangdong, PR China
- Corresponding author
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Protective Effects of a Polyphenol-Rich Extract from Syzygium cumini (L.) Skeels Leaf on Oxidative Stress-Induced Diabetic Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:5386079. [PMID: 30046378 PMCID: PMC6038589 DOI: 10.1155/2018/5386079] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 04/05/2018] [Accepted: 04/19/2018] [Indexed: 12/31/2022]
Abstract
Syzygium cumini (L.) Skeels has been reported to exert anti-inflammatory and cardiometabolic activities due to its high content of polyphenols. We characterized the chemical composition and assessed the antidiabetic effects of a novel polyphenol-rich extract (PESc) obtained from S. cumini leaf. Rats were injected with alloxan (150 mg/kg, ip, ALX group) and followed up for 7 days. Some were orally treated with PESc (50 mg/kg/day) for 7 days before and after diabetes induction (ALX-PP) or only for 7 days after alloxan injection (ALX-P). ALX-P and ALX-PP decreased fasting glycemia in 37 and 43%, respectively, as compared to ALX. Triglycerides and total cholesterol serum levels were also significantly reduced in comparison to ALX. PESc presented high polyphenol concentration (71.78 ± 8.57 GAE/100 g), with flavonoid content of 8.21 ± 0.42 QE/100 g. Upon HPLC-MS/MS and MS/MS studies, five main polyphenols-gallic acid, quercetin, myricetin, and its derivatives-were identified. Myricetin was predominant (192.70 ± 16.50 μg/mg PESc), followed by measurable amounts of gallic acid (11.15 ± 0.90 μg/mg PESc) and quercetin (4.72 ± 0.06 μg/mg PESc). Kinetic assessment of total antioxidant capacity revealed PESc high potency, since maximum response was reached within 5 min reaction time in a concentration-dependent manner. Specific antioxidant activity of PESc was assessed against both DPPH• and ABTS•+, showing strong activity (IC50: 3.88 ± 1.09 and 5.98 ± 1.19 μg/mL, resp.). PESc also inhibited lipoxygenase activity (IC50: 27.63 ± 8.47), confirming its antioxidant activity also on biologically relevant radicals. Finally, PESc induced insulin secretion by directly stimulating INS-1E β cells in the absence of any cytotoxic effect. Overall, our results support that PESc is a potent antioxidant phytocomplex with potential pharmacological use as a preventive antidiabetic natural product.
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Park JS, Rehman SU, Kim IS, Choi MS, Na CS, Yoo HH. Evaluation of Herb-Drug Interactions of Hovenia dulcis Fruit Extracts. Pharmacogn Mag 2017; 13:236-239. [PMID: 28539714 PMCID: PMC5421419 DOI: 10.4103/0973-1296.204552] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 05/19/2016] [Indexed: 02/06/2023] Open
Abstract
Background: Hovenia dulcis (Rhamnaceae) fruits are popularly used as herbal medicines or dietary supplements in Asian countries due to functions such as liver protection and detoxification from alcohol poisoning. Accordingly, it is very likely for dietary supplemental products, including H. dulcis fruit extracts, to be taken with prescription drugs. Objective: In this study, possible food–drug interactions involving H. dulcis fruit extracts were evaluated based on the inhibition of cytochrome P450 (CYP) enzyme activity. Material and Methods: The water extract of H. dulcis fruit extracts was incubated in human liver microsomes with CYP-specific substrates. The formation of the CYP-specific metabolites was measured using liquid chromatography-tandem mass spectrometry. Results: H. dulcis fruit extracts showed negligible effects on seven CYP isozyme activities at all concentrations tested. Conclusion: This result suggests that H. dulcis fruit extracts may have minimal pharmacokinetic interactions with coadministered drugs through the modulation of CYP enzymes. SUMMARY Food-drug interactions involving H. dulcis fruit extracts were evaluated. The inhibition of CYPs by H. dulcis extracts was tested. H. dulcis extracts showed negligible effects on CYP activities. H. dulcis extracts may have minimal pharmacokinetic interactions with co-administered drugs.
Abbreviations Used: CYP: cytochrome P450 enzymes, HPLC: High performance liquid chromatography, LC-MS/MS : liquid chromatography-tandem mass spectrometry, MRM: multiple-reaction monitoring
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Affiliation(s)
- Jong Suk Park
- Institute of Pharmaceutical Science and Technology and College of Pharmacy, Hanyang University, Ansan, Republic of Korea
| | - Shaheed Ur Rehman
- Institute of Pharmaceutical Science and Technology and College of Pharmacy, Hanyang University, Ansan, Republic of Korea
| | - In Sook Kim
- Institute of Pharmaceutical Science and Technology and College of Pharmacy, Hanyang University, Ansan, Republic of Korea
| | - Min Sun Choi
- Institute of Pharmaceutical Science and Technology and College of Pharmacy, Hanyang University, Ansan, Republic of Korea
| | - Chun-Soo Na
- Lifetree Biotech Co., Ltd., Suwon, Gyeonggi-do, Republic of Korea
| | - Hye Hyun Yoo
- Institute of Pharmaceutical Science and Technology and College of Pharmacy, Hanyang University, Ansan, Republic of Korea
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Morales P, Maieves HA, Dias MI, Calhella RC, Sánchez-Mata MC, Santos-Buelga C, Barros L, Ferreira IC. Hovenia dulcis Thunb. pseudofruits as functional foods: Phytochemicals and bioactive properties in different maturity stages. J Funct Foods 2017. [DOI: 10.1016/j.jff.2016.12.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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Kim NH, Heo JD, Kim TB, Rho JR, Yang MH, Jeong EJ. Protective Effects of Ethyl Acetate Soluble Fraction of Limonium tetragonum on Diethylnitrosamine-Induced Liver Fibrosis in Rats. Biol Pharm Bull 2017; 39:1022-8. [PMID: 27251505 DOI: 10.1248/bpb.b15-01047] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Diethylnitrosamine (DEN) is a potent toxic material that can cause necrosis and subsequent fibrosis in the liver. Based on the previously reported hepatoprotective effect of Limonium tetragonum against the proliferation of hepatic stellate cells, we tested the EtOAc soluble fraction of L. tetragonum extract (EALT) in a DEN-induced hepatotoxic rat model. The development of hepatotoxicity including mononuclear cell infiltration and fibrosis induced by intraperitoneal injections of DEN (70 mg/2 mL/kg body weight (b.w.) per week) was observed at 4, 6 and 8 weeks after the first DEN treatment. Administration of EALT (200 mg/kg body weight, per os (p.o.)) induced significant reductions in serum alanine transaminase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), gamma glutamyl transferase (GGT), and triglycerides (TG) in DEN-injected rats. Increased oxidative stress in DEN-induced liver fibrosis rats was diminished by EALT treatment through a decrease in malondialdehyde (MDA) and increase in superoxide dismutase (SOD). Histologic findings that included markedly attenuated mononuclear cell infiltration and fibrosis could be observed in liver samples from the EALT-treated groups. An extract of Hovenia dulcis fruit and Sylimarin were used as positive controls. The present study provides direct experimental evidence for EALT attenuated hepatic injury and fibrosis in DEN-treated mice. The L. tetragonum EtOAc fraction might be useful in treating fibrotic liver diseases.
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Affiliation(s)
- Na-Hyun Kim
- Gyeongnam Department of Environment & Toxicology, Korea Institute of Toxicology
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Meng Y, Su A, Yuan S, Zhao H, Tan S, Hu C, Deng H, Guo Y. Evaluation of Total Flavonoids, Myricetin, and Quercetin from Hovenia dulcis Thunb. As Inhibitors of α-Amylase and α-Glucosidase. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2016; 71:444-449. [PMID: 27787697 DOI: 10.1007/s11130-016-0581-2] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study was designed to investigate the inhibition effect and mechanism of total flavonoids, myricetin and quercetin extracted from Hovenia dulcis Thunb. on α-amylase and α-glucosidase in order to explore the potential use of Hovenia flavonoids in alleviating postprandial hyperglycemia. The results demonstrate that total flavonoids, myricetin, and quercetin were effective inhibitors of α-amylase with IC50 values of 32.8, 662 and 770 μg ml-1, respectively. And all three were effective inhibitors of α-glucosidase with IC50 values of 8, 3 and 32 μg ml-1, respectively. Enzyme kinetics tests and Lineweaver-Burk results showed the inhibition effects of total flavonoids, myricetin and quercrtin on α-amylase were all reversible and competitive, and the effects on α-glucosidase were all reversible but non-competitive. This study revealed that Hovenia flavonoids, especially myricetin, are effective and promising functional foods in alleviating type 2 diabetes mellitus.
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Affiliation(s)
- Yonghong Meng
- Shaanxi Engineering Lab for Food Green Processing and Security Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Chang'an Avenue, Chang'an, Xi'an, 710119, People's Republic of China.
| | - Anping Su
- Shaanxi Engineering Lab for Food Green Processing and Security Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Chang'an Avenue, Chang'an, Xi'an, 710119, People's Republic of China
| | - Shuang Yuan
- Shaanxi Engineering Lab for Food Green Processing and Security Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Chang'an Avenue, Chang'an, Xi'an, 710119, People's Republic of China
| | - Huaguo Zhao
- Xi'an Healthful Biotechnology Co., Ltd., HangTuo Road, Chang'an, Xi'an, 710100, People's Republic of China
| | - Siyuan Tan
- Shaanxi Engineering Lab for Food Green Processing and Security Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Chang'an Avenue, Chang'an, Xi'an, 710119, People's Republic of China
| | - Chingyuan Hu
- Department of Human Nutrition, Food and Animal Sciences, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, 1955 East West Road, AgSci 216, Honolulu, HI, 96822, USA
| | - Hong Deng
- Shaanxi Engineering Lab for Food Green Processing and Security Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Chang'an Avenue, Chang'an, Xi'an, 710119, People's Republic of China
| | - Yurong Guo
- Shaanxi Engineering Lab for Food Green Processing and Security Control, College of Food Engineering and Nutritional Science, Shaanxi Normal University, 620 West Chang'an Avenue, Chang'an, Xi'an, 710119, People's Republic of China
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Park JY, Moon JY, Park SD, Park WH, Kim H, Kim JE. Fruits extracts of Hovenia dulcis Thunb. suppresses lipopolysaccharide-stimulated inflammatory responses through nuclear factor-kappaB pathway in Raw 264.7 cells. ASIAN PAC J TROP MED 2016; 9:357-365. [DOI: 10.1016/j.apjtm.2016.03.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 02/20/2016] [Accepted: 03/01/2016] [Indexed: 11/25/2022] Open
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Bernardi F, Possa MG, Faccin M, Gruchouskei L, Fonseca-Alves CE, Pípole F, de Carvalho LR, Elias F. Spontaneous poisoning by Hovenia dulcis in dairy cattle in Southwest Parana, Brazil. Trop Anim Health Prod 2015; 48:211-4. [PMID: 26415955 DOI: 10.1007/s11250-015-0918-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 09/08/2015] [Indexed: 11/29/2022]
Abstract
Livestock poisoning by plants is a frequent occurrence which determines severe losses, such as the fall in the milk and meat production, the cost of expensive treatments, the state of immunosuppression, or even the animal's death. Cattle ingest toxic plants only when there is food shortage, when they cannot select what they eat, or when they ingest food for preference, which is the case of Hovenia dulcis fruits, very rich in sucrose. This plant is widely distributed in the southern and southeastern Brazilian regions. In literature, there are some cases of severe human liver injury associated with a long-term of H. dulcis leaf and fruit tea intake, and only one report regarding spontaneous poisoning of goats caused by this plant ingestion. However, its toxic effects associated with spontaneous ingestion by cattle have never been reported. This paper reports the first case of spontaneous poisoning in cattle by H. dulcis, which occurred in a dairy farm in southwest Paraná, Brazil. Three cattle individuals showed anorexia, ruminal atony, severe diarrhea and neurological tournament, head pressing, blindness, ataxia, and circling. The necropsy of the animals was done, and the remaining alterations were restricted to the digestive system and brain. The clinical signs presented by the animals are characteristic of polioencephalomalacia (PEM), caused by changes in the thiamine metabolism. Furthermore, clinical signs, gross, and microscopic lesions as well as the large amount of the plant throughout the digestive segment led to a diagnosis.
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Affiliation(s)
- Fabricio Bernardi
- School of Veterinary Medicine, Universidade Federal da Fronteira Sul-UFFS, Realeza, PR, 85770-000, Brazil
| | - Marina Gabriela Possa
- School of Veterinary Medicine, Universidade Federal da Fronteira Sul-UFFS, Realeza, PR, 85770-000, Brazil
| | - Mayane Faccin
- School of Veterinary Medicine, Universidade Federal da Fronteira Sul-UFFS, Realeza, PR, 85770-000, Brazil
| | - Leonardo Gruchouskei
- School of Veterinary Medicine, Universidade Federal da Fronteira Sul-UFFS, Realeza, PR, 85770-000, Brazil
| | - Carlos Eduardo Fonseca-Alves
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, Univ. Estadual Paulista-UNESP, Botucatu, SP, 18618-970, Brazil
| | - Fernando Pípole
- Department of Veteronary Pathology, School of Veterinary Medicine, Universidade de São Paulo-USP, São Paulo, SP, 05508-270, Brazil
| | | | - Fabiana Elias
- School of Veterinary Medicine, Universidade Federal da Fronteira Sul-UFFS, Realeza, PR, 85770-000, Brazil.
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