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Ma Y, Lai J, Chen Z, Wan Q, Shi X, Zhou H, Li J, Yang Z, Wu J. Exploring therapeutic targets and molecular mechanisms for treating diabetes mellitus-associated heart failure with Qishen Yiqi dropping pills: A network pharmacology and bioinformatics approach. Medicine (Baltimore) 2024; 103:e39104. [PMID: 39093800 PMCID: PMC11296435 DOI: 10.1097/md.0000000000039104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 07/01/2024] [Indexed: 08/04/2024] Open
Abstract
Diabetes mellitus (DM) and heart failure frequently coexist, presenting significant public health challenges. QiShenYiQi Dropping Pills (QSDP) are widely employed in the treatment of diabetes mellitus concomitant with heart failure (DM-HF). Nevertheless, the precise mechanisms underlying their efficacy have yet to be elucidated. Active ingredients and likely targets of QSDP were retrieved from the TCMSP and UniProt databases. Genes associated with DM-HF were pinpointed through searches in the GeneCards, OMIM, DisGeNET, and TTD databases. Differential genes connected to DM-HF were sourced from the GEO database. Enrichment analyses via gene ontology and Kyoto Encyclopedia of Genes and Genomes pathways, as well as immune infiltration assessments, were conducted using R software. Further analysis involved employing molecular docking strategies to explore the interactions between the identified targets and active substances in QSDP that are pertinent to DM-HF treatment. This investigation effectively discerned 108 active compounds and 257 targets relevant to QSDP. A protein-protein interaction network was constructed, highlighting 6 central targets for DM-HF treatment via QSDP. Gene ontology enrichment analysis predominantly linked these targets with responses to hypoxia, metabolism of reactive oxygen species, and cytokine receptor interactions. Analysis of Kyoto Encyclopedia of Genes and Genomes pathways demonstrated that these targets mainly participate in pathways linked to diabetic complications, such as AGE-RAGE signaling, dyslipidemia, arteriosclerosis, the HIF-1 signaling pathway, and the tumor necrosis factor signaling pathway. Further, immune infiltration analysis implied that QSDP's mechanism in treating DM-HF might involve immune-mediated inflammation and crucial signaling pathways. Additionally, molecular docking studies showed that the active substances in QSDP have strong binding affinities with these identified targets. This research presents a new model for addressing DM-HF through the use of QSDP, providing novel insights into incorporating traditional Chinese medicine (TCM) principles in the clinical treatment of DM-HF. The implications of these findings are substantial for both clinical application and further scientific inquiry.
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Affiliation(s)
- Yirong Ma
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Junyu Lai
- Cardiology Department, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Zhengtao Chen
- Cardiology Department, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Qiang Wan
- Cardiology Department, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Xianlin Shi
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Hao Zhou
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Jiaming Li
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Zurong Yang
- Department of Postgraduate, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Jianguang Wu
- Cardiology Department, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
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Chi K, Yang S, Zhang Y, Zhao Y, Zhao J, Chen Q, Ge Y, Liu J. Exploring the mechanism of Tingli Pill in the treatment of HFpEF based on network pharmacology and molecular docking. Medicine (Baltimore) 2024; 103:e37727. [PMID: 38640300 PMCID: PMC11029988 DOI: 10.1097/md.0000000000037727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/01/2024] [Accepted: 03/05/2024] [Indexed: 04/21/2024] Open
Abstract
To explore the mechanism of action of Tingli Pill (TLP) in the treatment of heart failure with preserved ejection fraction (HFpEF) by using network pharmacology and molecular docking technology. The active components and targets of TLP were screened using the TCMSP and UniProt databases. HFpEF-related targets were identified using the OMIM and GeneCards databases. Drug-disease intersection targets were obtained via Venny 2.1.0, as well as establishing the "component-target" network and screening out the core active components. Construct a protein-protein interaction network of intersecting targets using the STRING database as well as Cytoscape software and filter the core targets. Gene ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analysis of core targets were performed using the Metascape database. The core active components of TLP for HFpEF were quercetin, kaempferol, β-sitosterol, isorhamnetin and hederagenin. The core targets of TLP for HFpEF were JUN, MAPK1, TP53, AKT1, RELA, TNF, MAPK14, and IL16. Gene ontology enrichment analysis obtained 1528 biological processes, 85 cell components, and 140 molecular functions. The Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis yielded 1940 signaling pathways, mainly involved in lipid and atherosclerosis, regulation of apoptotic signaling pathway, PI3K-Akt signaling pathway, HIF-1 signaling pathway, oxidative stress, TNF signaling pathway, and IL-17 signaling pathway. TLP has the characteristics of multi-component, multi-target, and multi-pathway in the treatment of HFpEF. This study lays the foundation for revealing the pharmacodynamic substances and mechanism of TLP in the treatment of HFpEF.
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Affiliation(s)
- Kuo Chi
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Saisai Yang
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yao Zhang
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yongfa Zhao
- The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Jiahe Zhao
- Medical Comprehensive Experimental Center, Hebei University, Baoding, China
| | - Qiuhan Chen
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yuan Ge
- The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, China
| | - Jing Liu
- Heilongjiang University of Chinese Medicine, Harbin, China
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A Review on Polyphenols in Salicornia ramosissima with Special Emphasis on Their Beneficial Effects on Brain Ischemia. Nutrients 2023; 15:nu15030793. [PMID: 36771496 PMCID: PMC9919161 DOI: 10.3390/nu15030793] [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: 12/26/2022] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023] Open
Abstract
There has been an increasing interest in the consumption of halophytes as a healthy food in the last few years. Salicornia ramosissima is a seasonal Mediterranean halophyte with an interesting profile of bioactive compounds, including more than 60 identified polyphenols with a broad range of biological activities. Accumulating evidence supports the role of dietary polyphenols in the prevention of cardiovascular diseases, such as stroke. Stroke is the second cause of death worldwide and it is estimated that a substantial proportion of stroke incidence and recurrence may be prevented by healthier dietary patterns. Here, we have grouped the phenolic acids and flavonoids identified in S. ramosissima and reviewed their potential protective effect on brain ischemia, which are mostly related to the reduction of oxidative stress and inflammation, the inhibition of cell death pathways and their role in the preservation of the vascular function. Despite the fact that most of these compounds have been reported to be neuroprotective through multiple mechanisms, human studies are still scarce. Given the safe profile of polyphenols identified in S. ramosissima, this halophyte plant could be considered as a source of bioactive compounds for the nutraceutical industry.
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Popiolek-Kalisz J, Fornal E. Dietary Isorhamnetin Intake Is Inversely Associated with Coronary Artery Disease Occurrence in Polish Adults. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12546. [PMID: 36231844 PMCID: PMC9566513 DOI: 10.3390/ijerph191912546] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/21/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
The role of antioxidative agents in coronary artery disease (CAD) has been investigated, but the analysis of specific flavonols intake in Polish adults requires validated tools. The aim of this study was to estimate the dietary intake of flavonols in CAD patients by creating a food frequency questionnaire (FFQ) dedicated for this purpose in Polish adults. The FFQ included 140 products from 12 food groups. The study involved 103 adult respondents (43 CAD patients and 60 healthy controls). Mean daily intakes of total flavonols, quercetin, kaempferol, myricetin and isorhamnetin were calculated as absolute values and quartiles. Mean daily intakes of 12 main food categories and 27 subcategories were calculated as portions and quartiles. The validity test revealed high correlation for total flavonols, kaempferol, myricetin and isorhamnetin and moderate for quercetin. In the reproducibility analysis, the correlation was high for total flavonols, quercetin, kaempferol and myricetin, moderate for isorhamnetin and high for all 12 categories and 25 out of 27 subcategories of the tested food groups. The application of the FFQ in healthy adults and CAD patients revealed that dietary intakes of total flavonols and proportional intakes of kaempferol and isorhamnetin in Polish adults and CAD patients are higher than in most other European countries, while the proportional intakes of quercetin and myricetin are lower than in most European countries. The comparison between CAD patients and the healthy controls revealed significant differences in dietary isorhamnetin intake (p = 0.002). The results suggest that dietary isorhamnetin could have a potential role in CAD prevention.
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Affiliation(s)
- Joanna Popiolek-Kalisz
- Clinical Dietetics Unit, Department of Bioanalytics, Medical University of Lublin, ul. Chodzki 7, 20-090 Lublin, Poland
- Department of Cardiology, Cardinal Wyszynski Hospital in Lublin, al. Krasnicka 100, 20-718 Lublin, Poland
| | - Emilia Fornal
- Department of Bioanalytics, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland
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Yuan Y, Zuo J, Zhang H, Zu M, Liu S. Analysis of the different growth years accumulation of flavonoids in Dendrobium moniliforme (L.) Sw. by the integration of metabolomic and transcriptomic approaches. Front Nutr 2022; 9:928074. [PMID: 36225877 PMCID: PMC9549206 DOI: 10.3389/fnut.2022.928074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 09/06/2022] [Indexed: 12/14/2022] Open
Abstract
Dendrobium moniliforme (L.) Sw. is a valuable herbal crop, and flavonoids are primarily distributed as active ingredients in the stem, but the composition and synthesis mechanisms of flavonoids in different growth years are not clear. The accumulation of flavonoids in D. moniliforme from four different years was investigated, using a combined metabolomics and transcriptomics approach in this study. The phenylpropanoid and flavonoid biosynthetic pathways were significantly enriched in the Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis of differentially expressed genes (DEGs) and differentially accumulated metabolites (DAMs). The widely targeted metabolomics technique revealed a total of 173 kinds of flavonoid metabolites. The metabolomics data confirmed the trend of total flavonoids (TF) content in stems of D. moniliforme, with chalcone, naringenin, eriodictyol, dihydroquercetin, and other flavonoids considerably up-accumulating in the third year. Twenty DEGs were detected that regulate flavonoid synthesis and the expression of these genes in different growth years was verified using real-time quantitative PCR (qRT-PCR). Furthermore, a comprehensive regulatory network was built for flavonoid biosynthesis and it was discovered that there is one FLS gene, one CCR gene and two MYB transcription factors (TFs) with a high connection with flavonoid biosynthesis by weighted gene co-expression network analysis (WGCNA). In this study, the correlation between genes involved in flavonoid biosynthesis and metabolites was revealed, and a new regulatory mechanism related to flavonoid biosynthesis in D. moniliforme was proposed. These results provide an important reference for the farmers involved in the cultivation of D. moniliforme.
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Chu S, Wang W, Zhang N, Liu T, Li J, Chu X, Zuo S, Ma Z, Ma D, Chu L. Protective effects of 18β-Glycyrrhetinic acid against myocardial infarction: Involvement of PI3K/Akt pathway activation and inhibiting Ca 2+ influx via L-type Ca 2+ channels. Food Sci Nutr 2021; 9:6831-6843. [PMID: 34925811 PMCID: PMC8645779 DOI: 10.1002/fsn3.2639] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/15/2021] [Accepted: 10/16/2021] [Indexed: 12/24/2022] Open
Abstract
18β-Glycyrrhetinic acid (18β-GA) is a component extracted from licorice. This study aimed to evaluate the effects of 18β-GA on isoproterenol (ISO)-induced acute myocardial infarction in rats and mice. Two consecutive days of subcutaneous injection of ISO (85 mg/kg/day) resulted in acute myocardial infarction. We examined the pathological changes, oxidative stress, inflammatory response, and expression of apoptosis in mouse hearts. The expressions of phosphoinositol-3-kinase (PI3K), protein kinase B (Akt), and the phosphorylation levels of PI3K (p-PI3K) and Akt (p-Akt) were determined by western blotting. The whole-cell patch-clamp technique was applied to observe the L-type Ca2+ currents, and the Ion Optix detection system was used for cell contraction and Ca2+ transient in isolated rat cardiac ventricular myocytes. In ISO-induced myocardial infarction, the J-point, heart rate, creatine kinase, lactate dehydrogenase, superoxide dismutase, catalase, malondialdehyde, glutathion, and reactive oxygen species decreased in mice after 18β-GA treatment. 18β-GA improved ISO-induced morphologic pathology, inhibited the inflammatory pathway response and cardiomyocyte apoptosis, and inhibited PI3K/Akt signaling. 18β-GA could significantly inhibit ICa-L, myocardial contraction, and Ca2+ transient. This study demonstrates that 18β-GA has cardioprotective effects on acute myocardial infarction, which may be related to inhibiting oxidative stress, inflammation, apoptosis via the PI3K/Akt pathway, and reducing cell contractility and Ca2+ concentration via L-type Ca2+ channels.
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Affiliation(s)
- Sijie Chu
- School of Basic MedicineHebei University of Chinese MedicineShijiazhuangChina
| | - Weijie Wang
- Department of SurgeryThe Second Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Ning Zhang
- School of Basic MedicineHebei University of Chinese MedicineShijiazhuangChina
| | - Tong Liu
- School of Basic MedicineHebei University of Chinese MedicineShijiazhuangChina
| | - Jing Li
- School of PharmacyHebei University of Chinese MedicineShijiazhuangChina
| | - Xi Chu
- Department of PharmacyThe Fourth Hospital of Hebei Medical UniversityShijiazhuangChina
| | - Saijie Zuo
- School of PharmacyHebei University of Chinese MedicineShijiazhuangChina
| | - Zhihong Ma
- School of Basic MedicineHebei University of Chinese MedicineShijiazhuangChina
- Department of Immunology and PathobiologyHebei University of Chinese MedicineShijiazhuangChina
| | - Donglai Ma
- School of PharmacyHebei University of Chinese MedicineShijiazhuangChina
| | - Li Chu
- School of PharmacyHebei University of Chinese MedicineShijiazhuangChina
- Hebei Key Laboratory of Integrative Medicine on Liver‐Kidney PatternsHebei University of Chinese MedicineShijiazhuangChina
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Yang Z, Zheng Y, Tursumamat N, Zhu M. Synthesis of 3'-O-Alkyl Homologues and a Biotin Probe of Isorhamnetin and Evaluation of Cytotoxic Efficacy on Cancer Cells. Chem Biodivers 2021; 18:e2100301. [PMID: 34561940 DOI: 10.1002/cbdv.202100301] [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: 04/17/2021] [Accepted: 09/21/2021] [Indexed: 11/09/2022]
Abstract
Isorhamnetin is a natural flavonoid which shows a variety of biological activities such as antioxidant, anti-inflammatory and antitumor. In order to identify the cellular binding protein of isorhamnetin as potential anti-cancer target, we first synthesized 3'-O-substituted quercetin as isorhamnetin homologues and evaluated the growth inhibitory activity of these derivatives on breast, colon and prostate cancer cell lines. The preliminary results showed that the 3'-O modification did not affect the cytotoxic activity of the scaffold. Analysis of the co-crystal structure and the docking pose of isorhamnetin with reported binding protein of isorhamnetin or quercetin indicated the 3'-O-substitution groups located outside of the binding pocket, which is in accordance with activity of 3'-O derivatives. Then a biotin conjugate of isorhamnetin with a tetraethylene glycol (PEG)4 linker at the 3' position was synthesized and the resulting probe retained the anti-proliferative activity on cancer cell lines, while the cellular fluorescence analysis showed the distribution of probe inside the cells which indicated the probe had limited cell permeability. Finally, pull down assay both in situ inside cells and in the cell lysates indicated the isorhamnetin biotin probe was capable of protein labeling in cell lysates. These findings provide the isorhamnetin 3'-O-biotin probe as a tool to reveal the target proteins of isorhamnetin.
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Affiliation(s)
- Zhuojin Yang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Yi Zheng
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Nafisa Tursumamat
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Mingyan Zhu
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
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Isorhamnetin Alleviates High Glucose-Aggravated Inflammatory Response and Apoptosis in Oxygen-Glucose Deprivation and Reoxygenation-Induced HT22 Hippocampal Neurons Through Akt/SIRT1/Nrf2/HO-1 Signaling Pathway. Inflammation 2021; 44:1993-2005. [PMID: 33999329 DOI: 10.1007/s10753-021-01476-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/15/2021] [Accepted: 05/03/2021] [Indexed: 12/23/2022]
Abstract
This study is aimed at exploring the potential of isorhamnetin in protection against diabetes-exacerbated ischemia/reperfusion-induced brain injury and elucidating its action mechanism. After establishment of the model of high glucose (HG)-aggravated oxygen-glucose deprivation and reoxygenation (OGD/R), HT22 cell viability was detected by CCK-8. Lactate dehydrogenase (LDH) activity, casapase-3 activity, and oxidative stress-related markers in HT22 cells were detected by corresponding commercial kits. The apoptosis of HG-treated HT22 cells following OGD/R was observed with TUNEL staining. The level of pro-inflammatory cytokines was examined by ELISA. The expression of Akt/SIRT1/Nrf2/HO-1 signaling-related proteins was assayed by Western blot. The results showed that HG noticeably worsened the OGD/R-induced apoptosis of HT22 cells. Isorhamnetin relieved the HG-aggravated OGD/R-induced apoptosis, inflammatory response, and oxidative stress of HT22 cells. Isorhamnetin alleviated the HG-aggravated OGD/R injury in HT22 cells through Akt/SIRT1/Nrf2/HO-1 signaling pathway. Meanwhile, treatment with Akt inhibitor LY294002 reversed the protective effects of isorhamnetin against HG-aggravated OGD/R injury in HT22 cells. In a conclusion, Isorhamnetin alleviates HG-aggravated OGD/R in HT22 hippocampal neurons through Akt/SIRT1/Nrf2/HO-1 signaling pathway.
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Wang C, Nan X, Pei S, Zhao Y, Wang X, Ma S, Ma G. Salidroside and isorhamnetin attenuate urotensin II-induced inflammatory response in vivo and in vitro: Involvement in regulating the RhoA/ROCK II pathway. Oncol Lett 2021; 21:292. [PMID: 33732368 PMCID: PMC7905674 DOI: 10.3892/ol.2021.12553] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 11/11/2020] [Indexed: 12/18/2022] Open
Abstract
Urotensin II (UII), a vital vasoconstrictor peptide, causes an inflammatory response in the pathogenesis of atherosclerosis. Previous studies have reported that the Ras homolog gene family, member A (RhoA)/Rho kinases (ROCK) pathway modulates the inflammatory response of the atherosclerotic process. However, to the best of our knowledge, whether the RhoA/ROCK pathway mediates the inflammatory effect of UII has not been previously elucidated. Salidroside and isorhamnetin are two early developed antioxidant Tibetan drugs, both displaying cardioprotective effects against atherosclerosis. Therefore, the aim of the present study was to investigate the protective effects of salidroside, isorhamnetin or combination of these two drugs on the UII-induced inflammatory response in vivo (rats) or in vitro [primary vascular smooth muscle cells (VSMCs)], as well as to examine the role of the RhoA/ROCK pathway in these processes. The levels of inflammatory markers were measured via ELISA. The mRNA and protein expression levels of RhoA and ROCK II were detected using reverse transcription-quantitative PCR assay and western blot analysis. It was demonstrated that salidroside, isorhamnetin and both in combination decreased the levels of the serum pro-inflammatory cytokines TNF-α and IL-1β, as well as increased the levels of the anti-inflammatory cytokine IL-10 and macrophage migration inhibitory factor in rats with subacute infusion of UII and in the culture supernatant from primary VSMCs-exposed to UII. Moreover, salidroside, isorhamnetin and both in combination attenuated the mRNA and protein expression levels of RhoA and ROCK II in vivo and in vitro, at concentrations corresponding to human therapeutic blood plasma concentrations. Thus, these drugs could inhibit the RhoA/ROCK II pathway under UII conditions. The combination of salidroside and isorhamnetin did not display a stronger inhibitory effect on the inflammatory response and the RhoA/ROCK II pathway compared with salidroside and isorhamnetin in isolation. Collectively, the results indicated that salidroside, isorhamnetin and both in combination inhibited the RhoA/ROCK II pathway, which then attenuated the inflammatory response under UII-induced conditions, resulting in cardioprotection in atherosclerosis.
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Affiliation(s)
- Chenjing Wang
- Department of Pharmacology, School of Basic Medical Sciences, Northwest Minzu University Health Science Center, Lanzhou, Gansu 730030, P.R. China
| | - Xiaodong Nan
- Intensive Care Unit, Gansu Provincial Corps Hospital of Chinese People's Armed Police Force, Lanzhou, Gansu 730050, P.R. China
| | - Shuyan Pei
- Department of Pharmacology, School of Basic Medical Sciences, Northwest Minzu University Health Science Center, Lanzhou, Gansu 730030, P.R. China
| | - Yu Zhao
- Department of Pharmacology, School of Basic Medical Sciences, Northwest Minzu University Health Science Center, Lanzhou, Gansu 730030, P.R. China
| | - Xiaokun Wang
- Department of Pharmacology, School of Basic Medical Sciences, Northwest Minzu University Health Science Center, Lanzhou, Gansu 730030, P.R. China
| | - Shijie Ma
- Department of Pharmacology, School of Basic Medical Sciences, Northwest Minzu University Health Science Center, Lanzhou, Gansu 730030, P.R. China
| | - Guoyan Ma
- Department of Pharmacology, School of Basic Medical Sciences, Northwest Minzu University Health Science Center, Lanzhou, Gansu 730030, P.R. China
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Du Y, Jia C, Liu Y, Li Y, Wang J, Sun K. Isorhamnetin Enhances the Radiosensitivity of A549 Cells Through Interleukin-13 and the NF-κB Signaling Pathway. Front Pharmacol 2021; 11:610772. [PMID: 33569004 PMCID: PMC7868540 DOI: 10.3389/fphar.2020.610772] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Accepted: 12/11/2020] [Indexed: 12/11/2022] Open
Abstract
Isorhamnetin (ISO), a naturally occurring plant flavonoid, is widely used as a phytomedicine. The major treatment modality for non-small-cell lung carcinoma (NSCLC) is radiotherapy. However, radiotherapy can induce radioresistance in cancer cells, thereby resulting in a poor response rate. Our results demonstrated that pretreatment with ISO induced radiosensitizing effect in A549 cells using colony formation, micronucleus, and γH2AX foci assays. In addition, ISO pretreatment significantly enhanced the radiation-induced incidence of apoptosis, the collapse of mitochondrial membrane potential, and the expressions of proteins associated with cellular apoptosis and suppressed the upregulation of NF-κBp65 induced by irradiation in A549 cells. Interestingly, the expression of interleukin-13 (IL-13), an anti-inflammatory cytokine, was positively correlated with the ISO-mediated radiosensitization of A549 cells. The knockdown of IL-13 expression by RNA interference decreased the IL-13 level and thus reduced ISO-mediated radiosensitivity in cells. We also found that the IR-induced NF-κB signaling activation was inhibited by ISO pretreatment, and it was abrogated in IL-13 silenced cells. We speculated that ISO may confer radiosensitivity on A549 cells via increasing the expression of IL-13 and inhibiting the activation of NF-κB. To our knowledge, this is the first report demonstrating the effects of ISO treatment on the responsiveness of lung cancer cells to irradiation through IL-13 and the NF-κB signaling pathway. In summary, ISO is a naturally occurring radiosensitizer with a potential application in adjuvant radiotherapy.
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Affiliation(s)
- Yarong Du
- College of Life Science, Northwest Normal University, Lanzhou, China.,Key Laboratory of Space Radiobiology of Gansu Province & CAS Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Cong Jia
- College of Life Science, Northwest Normal University, Lanzhou, China
| | - Yan Liu
- College of Life Science, Northwest Normal University, Lanzhou, China
| | - Yehua Li
- College of Life Science, Northwest Normal University, Lanzhou, China
| | - Jufang Wang
- Key Laboratory of Space Radiobiology of Gansu Province & CAS Key Laboratory of Heavy Ion Radiation Biology and Medicine, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China.,School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, China
| | - Kun Sun
- College of Life Science, Northwest Normal University, Lanzhou, China
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Gong G, Guan YY, Zhang ZL, Rahman K, Wang SJ, Zhou S, Luan X, Zhang H. Isorhamnetin: A review of pharmacological effects. Biomed Pharmacother 2020; 128:110301. [PMID: 32502837 DOI: 10.1016/j.biopha.2020.110301] [Citation(s) in RCA: 207] [Impact Index Per Article: 51.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/11/2020] [Accepted: 05/20/2020] [Indexed: 12/14/2022] Open
Abstract
Isorhamnetin is one of the most important active ingredients in the fruits of Hippophae rhamnoides L. and the leaves of Ginkgo biloba L., which possesses extensive pharmacological activities. At present, there have been numerous investigations on isorhamnetin, which has the effects of cardiovascular and cerebrovascular protection, anti-tumor, anti-inflammatory, anti-oxidation, organ protection, prevention of obesity, etc. The related mechanisms involve the regulation of PI3K/AKT/PKB, NF-κB, MAPK and other signaling pathways as well as the expression of related cytokines and kinases. Isorhamnetin has a high value of development and application. However, the investigations on its mechanism of action are limited and lack of detailed scientific validation. The manuscript reviewed the pharmacological effects of isorhamnetin and related mechanisms of action for the development of its medicinal properties further.
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Affiliation(s)
- Gang Gong
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China
| | - Ying-Yun Guan
- Department of Pharmacy, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China
| | - Zhong-Lin Zhang
- Department of Pharmacology, School of Pharmacy, Chengdu Medical College, Chengdu, PR China
| | - Khalid Rahman
- School of Pharmacy and Biomolecular Sciences, Faculty of Science, Liverpool John Moores University, Liverpool, L3 3AF, England, UK
| | - Su-Juan Wang
- Department of Drug Preparation, Hospital of TCM and Hui Nationality Medicine, Ningxia Medical University, Wuzhong, PR China
| | - Shuang Zhou
- Acupuncture and Moxibustion Techniques Department, School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, No. 1200, Cailun Road, Shanghai, 200032, PR China.
| | - Xin Luan
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China.
| | - Hong Zhang
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, PR China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, PR China.
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Xu Y, Tang C, Tan S, Duan J, Tian H, Yang Y. Cardioprotective effect of isorhamnetin against myocardial ischemia reperfusion (I/R) injury in isolated rat heart through attenuation of apoptosis. J Cell Mol Med 2020; 24:6253-6262. [PMID: 32307912 PMCID: PMC7294129 DOI: 10.1111/jcmm.15267] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/19/2020] [Accepted: 03/26/2020] [Indexed: 12/16/2022] Open
Abstract
In this study, we investigated the effects of isorhamnetin on myocardial ischaemia reperfusion (I/R) injury in Langendorff‐perfused rat hearts. Isorhamnetin treatment (5, 10 and 20 μg/mL) significantly alleviated cardiac morphological injury, reduced myocardial infarct size, decreased the levels of marker enzymes (LDH and CK) and improved the haemodynamic parameters, reflected by the elevated levels of the left ventricular developed pressure (LVDP), coronary flow (CF) and the maximum up/down velocity of left ventricular pressure (+dp/dtmax). Moreover, isorhamnetin reperfusion inhibited apoptosis of cardiomyocytes in the rats subjected to cardiac I/R in a dose‐dependent manner concomitant with decreased protein expression of Bax and cleaved‐caspase‐3, as well as increased protein expression of Bcl‐2. In addition, I/R‐induced oxidative stress was manifestly mitigated by isorhamnetin treatment, as showed by the decreased malondialdehyde (MDA) level and increased antioxidant enzymes activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH‐Px). These results indicated that isorhamnetin exerts a protective effect against I/R‐induced myocardial injury through the attenuation of apoptosis and oxidative stress.
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Affiliation(s)
- Yan Xu
- Department of Geriatrics, the Second Xiangya Hospital, Central South University, Changsha, PR China
| | - Chun Tang
- Department of Nephrology, Center of Nephrology and Urology, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, PR China
| | - Shengyu Tan
- Department of Geriatrics, the Second Xiangya Hospital, Central South University, Changsha, PR China
| | - Juan Duan
- Department of Geriatrics, the Second Xiangya Hospital, Central South University, Changsha, PR China
| | - Hongmei Tian
- Department of Geriatrics, the Second Xiangya Hospital, Central South University, Changsha, PR China
| | - Yu Yang
- Department of Geriatrics, the Second Xiangya Hospital, Central South University, Changsha, PR China
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13
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Soltana H, De Rosso M, Lazreg H, Vedova AD, Hammami M, Flamini R. LC-QTOF characterization of non-anthocyanic flavonoids in four Tunisian fig varieties. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:817-823. [PMID: 29859515 DOI: 10.1002/jms.4209] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 05/17/2018] [Accepted: 05/18/2018] [Indexed: 06/08/2023]
Abstract
Flavonoids are compounds characterized by antioxidant activity, and their intake in the human diet is considered useful for health and nutrition. Non-anthocyanic flavonoids in 4 different types of Tunisian figs belonging to the smyrna-type Ficus carica varieties known as Kholi, Tchich Asal, Himri, and Bidhi were studied by liquid chromatography/high-resolution mass spectrometry UHPLC-QqTOF. Twenty-two compounds belonging to the classes of flavanones (naringenin and eriodictyol), flavones (3 apigenin and 5 luteolin derivatives), and flavonols (2 kaempferol and 7 quercetin derivatives) were identified. Three O-methoxy flavonols (tamarixetin, syringetin, and isorhamnetin-3-O-glucoside) were found in figs for the first time. Total content of non-anthocyanic flavonoids found in dark varieties (between 410 and 830 mg/kg) show that these F. carica are fruits qualitatively and quantitatively rich of dietary polyphenols.
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Affiliation(s)
- Hala Soltana
- University of Monastir, Research Laboratory LR12ES05: Lab-NAFS, Faculty of Medicine, Monastir, Tunisia
| | - Mirko De Rosso
- Viticulture & Oenology (CREA-VE), Council for Agricultural Research and Economics, Viale XXVIII Aprile 26, Conegliano, TV, 31015, Italy
| | - Houda Lazreg
- University of Monastir, Research Laboratory LR12ES05: Lab-NAFS, Faculty of Medicine, Monastir, Tunisia
| | - Antonio Dalla Vedova
- Viticulture & Oenology (CREA-VE), Council for Agricultural Research and Economics, Viale XXVIII Aprile 26, Conegliano, TV, 31015, Italy
| | - Mohamed Hammami
- University of Monastir, Research Laboratory LR12ES05: Lab-NAFS, Faculty of Medicine, Monastir, Tunisia
| | - Riccardo Flamini
- Viticulture & Oenology (CREA-VE), Council for Agricultural Research and Economics, Viale XXVIII Aprile 26, Conegliano, TV, 31015, Italy
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14
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Zhao TT, Yang TL, Gong L, Wu P. Isorhamnetin protects against hypoxia/reoxygenation-induced injure by attenuating apoptosis and oxidative stress in H9c2 cardiomyocytes. Gene 2018; 666:92-99. [PMID: 29730426 DOI: 10.1016/j.gene.2018.05.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/24/2018] [Accepted: 05/02/2018] [Indexed: 02/07/2023]
Abstract
To unveil the possible protective role of isorhamnetin, an immediate 3'-O-methylated metabolite of quercetin, in cardiomyocyte under hypoxia/reoxygenation (H/R) condition and the underlying mechanisms involved, H9c2 cardiomyocytes were exposed to the vehicle or H/R for 6 h (2 h of hypoxia following by 4 h of reoxygenation) with isorhamnetin (0, 3, 6, 12, 25, 50 μM for 4 h prior to H/R exposure). Apoptosis was evaluated by TUNEL staining, flow cytometry analysis and western blot assay for cleaved caspase-3. Myocardial injure in vivo was determined by infarct size using TTC staining, histological damage using H&E staining and myocardial apoptosis. Here, we found that isorhamnetin dose-dependently protected H9c2 cardiomyocytes against H/R-induced injure, as evidenced by the reduction in lactate dehydrogenase (LDH) levels, increases in cell viability, superoxide dismutase (SOD) and catalase (CAT) activity, with the maximal effects at 25 μΜ. In addition, isorhamnetin treatment significantly inhibited apoptosis in H/R-induced H9c2 cardiomyocytes and ameliorated H/R-induced myocardial injure in vivo, concomitant with the upregulation of sirtuin 1 (SIRT1) expression. Mechanism studies demonstrated that isorhamnetin pretreatment remarkably abolished H/R-induced downregulation of Nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1) expressions and upregulation of NADPH oxidase-2/4 (NOX-2/4) expressions in cardiomyocytes. However, SIRT1 inhibition (Sirtinol) not only inhibited isorhamnetin-induced Nrf2/HO-1 upregulation and NOX-2/4 downregulation, but also alleviated its anti-apoptotic effects. Taken together, these data indicate that isorhamnetin can exhibit positive effect on H/R-induced injure by attenuating apoptosis and oxidative stress in H9c2 cardiomyocytes, which is partly attributable to the upregulation of SIRT1 and Nrf2/HO-1-mediated antioxidant signaling pathway.
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Affiliation(s)
- Ting-Ting Zhao
- Cardiovascular Department, The Xiangya Hospital of Central South University, Changsha City, Hunan Province, China
| | - Tian-Lun Yang
- Cardiovascular Department, The Xiangya Hospital of Central South University, Changsha City, Hunan Province, China.
| | - Li Gong
- Cardiovascular Department, The Xiangya Hospital of Central South University, Changsha City, Hunan Province, China
| | - Pei Wu
- Cardiovascular Department, The Xiangya Hospital of Central South University, Changsha City, Hunan Province, China
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15
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Peroxisome Proliferator-Activated Receptors Associated with Nonalcoholic Fatty Liver Disease. PPAR Res 2017; 2017:6561701. [PMID: 29358945 PMCID: PMC5735692 DOI: 10.1155/2017/6561701] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 10/17/2017] [Accepted: 11/02/2017] [Indexed: 01/20/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is rapidly becoming a major cause of chronic liver disease worldwide. Concurrent to an increase in NAFLD prevalence, there is an increase in the obesity epidemic and the correlated insulin-resistant state. It is a challenge to diagnose NAFLD because many patients are asymptomatic until the later stages of disease. The most common symptoms include fatigue, malaise, and discomfort in the right upper quadrant. The major and most accurate tool to clinically diagnose NAFLD is a liver biopsy, followed by histological analysis. However, this procedure is invasive and often carries a high risk of complications. Currently, there are no officially approved medications for the treatment of NAFLD. Although lifestyle modifications with proper diet and exercise have been shown to be beneficial, this has been difficult to achieve and sustain for many patients. Effective pharmacological treatments are still lacking; therefore, additional research to identify novel drugs is clearly warranted. PPARs are promising drug targets for the management of NAFLD and its related conditions of type 2 diabetes mellitus and cardiovascular disease. In this review, we provide an overview of recent studies on the association of PPARs and NAFLD.
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16
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Wang J, Gong HM, Zou HH, Liang L, Wu XY. Isorhamnetin prevents H2O2‑induced oxidative stress in human retinal pigment epithelial cells. Mol Med Rep 2017; 17:648-652. [PMID: 29115489 DOI: 10.3892/mmr.2017.7916] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 03/24/2017] [Indexed: 11/05/2022] Open
Abstract
Isorhamnetin, a 3‑O‑methylated metabolite of quercetin, exhibits antioxidant effects. However, to the best of our knowledge, no study to date has focused on the effects of isorhamnetin on retinal pigment epithelium (RPE) cells, and its underlying molecular mechanisms. Therefore, the present study aimed to examine the potential protective effect of isorhamnetin against oxidative stress in human RPE cells. The results demonstrated that pretreatment of RPE cells with isorhamnetin significantly protected cell viability against oxidative stress. In addition, isorhamnetin pretreatment inhibited hydrogen peroxide (H2O2)‑induced reactive oxygen species (ROS) production and caspase‑3 activation in RPE cells. Furthermore, isorhamnetin pretreatment significantly increased the phosphorylation of phosphoinositide 3‑kinase (PI3K) and AKT serine/threonine kinase 1 (Akt) in RPE cells exposed to H2O2, compared with cells treated with H2O2 alone. Taken together, the present results demonstrated that isorhamnetin protected human RPE cells from oxidative stress‑induced cell death, and this effect was associated with activation of the PI3K/Akt signaling pathway. Thus, isorhamnetin may be considered as a potential antioxidant useful for the prevention of age‑related macular degeneration.
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Affiliation(s)
- Jing Wang
- Department of Ophthalmology, Qi Lu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Hui-Min Gong
- Ophthalmic Center, Qingdao Municipal Hospital, Qingdao, Shandong 266000, P.R. China
| | - Hui-Hui Zou
- Department of Ophthalmology, Dezhou People's Hospital, Dezhou, Shandong 253014, P.R. China
| | - Ling Liang
- Department of Ophthalmology, Dezhou People's Hospital, Dezhou, Shandong 253014, P.R. China
| | - Xin-Yi Wu
- Department of Ophthalmology, Qi Lu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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17
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Impact of pulsed electric fields, high hydrostatic pressure, and thermal pasteurization on selected characteristics of Opuntia dillenii cactus juice. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.10.061] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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18
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Gao L, Yao R, Liu Y, Wang Z, Huang Z, Du B, Zhang D, Wu L, Xiao L, Zhang Y. Isorhamnetin protects against cardiac hypertrophy through blocking PI3K-AKT pathway. Mol Cell Biochem 2017; 429:167-177. [PMID: 28176246 DOI: 10.1007/s11010-017-2944-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 01/17/2017] [Indexed: 01/10/2023]
Abstract
Isorhamnetin, a flavonoid compound extracted from the Chinese herb Hippophae rhamnoides L., is well known for its anti-inflammatory, anti-oxidative, anti-adipogenic, anti-proliferative, and anti-tumor activities. However, the role of isorhamnetin in cardiac hypertrophy has not been reported. The aims of the present study were to find whether isorhamnetin could alleviate cardiac hypertrophy and to define the underlying molecular mechanisms. Here, we investigated the effects of isorhamnetin (100 mg/kg/day) on cardiac hypertrophy induced by aortic banding in mice. Cardiac hypertrophy was evaluated by echocardiographic, hemodynamic, pathological, and molecular analyses. Our data demonstrated that isorhamnetin could inhibit cardiac hypertrophy and fibrosis 8 weeks after aortic banding. The results further revealed that the effect of isorhamnetin on cardiac hypertrophy was mediated by blocking the activation of phosphatidylinositol 3-kinase-AKT signaling pathway. In vitro studies performed in neonatal rat cardiomyocytes confirmed that isorhamnetin could attenuate cardiomyocyte hypertrophy induced by angiotensin II, which was associated with phosphatidylinositol 3-kinase-AKT signaling pathway. In conclusion, these data indicate for the first time that isorhamnetin has protective potential for targeting cardiac hypertrophy by blocking the phosphatidylinositol 3-kinase-AKT signaling pathway. Thus, our study suggests that isorhamnetin may represent a potential therapeutic strategy for the treatment of cardiac hypertrophy and heart failure.
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Affiliation(s)
- Lu Gao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China
| | - Rui Yao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China
| | - Yuzhou Liu
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China
| | - Zheng Wang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China
| | - Zhen Huang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China
| | - Binbin Du
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China
| | - Dianhong Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China
| | - Leiming Wu
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China
| | - Lili Xiao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China
| | - Yanzhou Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, China.
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19
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Zhao JJ, Song JQ, Pan SY, Wang K. Treatment with Isorhamnetin Protects the Brain Against Ischemic Injury in Mice. Neurochem Res 2016; 41:1939-48. [PMID: 27161367 DOI: 10.1007/s11064-016-1904-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Revised: 03/22/2016] [Accepted: 03/28/2016] [Indexed: 12/20/2022]
Abstract
Ischemic stroke is a major cause of morbidity and mortality, yet lacks effective neuroprotective treatments. The aim of this work was to investigate whether treatment with isorhamnetin protected the brain against ischemic injury in mice. Experimental stroke mice underwent the filament model of middle cerebral artery occlusion with reperfusion. Treatment with isorhamnetin or vehicle was initiated immediately at the onset of reperfusion. It was found that treatment of experimental stroke mice with isorhamnetin reduced infarct volume and caspase-3 activity (a biomarker of apoptosis), and improved neurological function recovery. Treatment of experimental stroke mice with isorhamnetin attenuated cerebral edema, improved blood-brain barrier function, and upregulated gene expression of tight junction proteins including occludin, ZO-1, and claudin-5. Treatment of experimental stroke mice with isorhamnetin activated Nrf2/HO-1, suppressed iNOS/NO, and led to reduced formation of MDA and 3-NT in ipsilateral cortex. In addition, treatment of experimental stroke mice with isorhamnetin suppressed activity of MPO (a biomarker of neutrophil infiltration) and reduced protein levels of IL-1β, IL-6, and TNF-α in ipsilateral cortex. Furthermore, it was found that treatment of experimental stroke mice with isorhamnetin reduced mRNA and protein expression of NMDA receptor subunit NR1 in ipsilateral cortex. In conclusion, treatment with isorhamnetin protected the brain against ischemic injury in mice. Isorhamnetin could thus be envisaged as a countermeasure for ischemic stroke but remains to be tested in humans.
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Affiliation(s)
- Jin-Jing Zhao
- Department of Neurology, 305th Hospital of the People's Liberation Army, Jia13 Wenjin Road, Beijing, 100017, China
| | - Jin-Qing Song
- Department of Pediatrics, Peking University First Hospital, Beijing, 100034, China
| | - Shu-Yi Pan
- Department of Hyperbaric Oxygen, Navy General Hospital of People's Liberation Army, Beijing, 100048, China
| | - Kai Wang
- Department of Neurology, 305th Hospital of the People's Liberation Army, Jia13 Wenjin Road, Beijing, 100017, China.
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20
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Moussa-Ayoub TE, Jaeger H, Youssef K, Knorr D, El-Samahy S, Kroh LW, Rohn S. Technological characteristics and selected bioactive compounds of Opuntia dillenii cactus fruit juice following the impact of pulsed electric field pre-treatment. Food Chem 2016; 210:249-61. [PMID: 27211645 DOI: 10.1016/j.foodchem.2016.04.115] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 04/23/2016] [Accepted: 04/25/2016] [Indexed: 11/28/2022]
Abstract
Selected technological characteristics and bioactive compounds of juice pressed directly from the mash of whole Opuntia dillenii cactus fruits have been investigated. The impact of pulsed electric fields (PEF) for a non-thermal disintegration on the important juice characteristics has been evaluated in comparison to microwave heating and use of pectinases. Results showed that the cactus juice exhibited desirable technological characteristics. Besides, it also contained a high amount of phenolic compounds being the major contributors to the overall antioxidant activity of juice. HPLC-DAD/ESI-MS(n) measurements in the fruits' peel and pulp showed that isorhamnetin 3-O-rutinoside was determined as the single flavonol found only in the fruit's peel. Treating fruit mash with a moderate electric field strength increased juice yield and improved juice characteristics. Promisingly, the highest release of isorhamnetin 3-O-rutinoside from fruit's peel into juice was maximally achieved by PEF.
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Affiliation(s)
- Tamer E Moussa-Ayoub
- Technische Universität Berlin, Institute of Food Technology and Food Chemistry, Department of Food Chemistry and Analysis, Gustav-Meyer-Allee 25, D-13355 Berlin, Germany; Suez Canal University, Agriculture Faculty, Department of Food Technology, 41522 Ismailia, Egypt
| | - Henry Jaeger
- University of Natural Resources and Life Sciences Vienna, Institute of Food Technology, Muthgasse 18, A-1190 Vienna, Austria
| | - Khaled Youssef
- Suez Canal University, Agriculture Faculty, Department of Food Technology, 41522 Ismailia, Egypt
| | - Dietrich Knorr
- Technische Universität Berlin, Institute of Food Technology and Food Chemistry, Department of Food Biotechnology and Food Process Engineering, Koenigin-Luise-Str. 22, D-14195 Berlin, Germany
| | - Salah El-Samahy
- Suez Canal University, Agriculture Faculty, Department of Food Technology, 41522 Ismailia, Egypt
| | - Lothar W Kroh
- Technische Universität Berlin, Institute of Food Technology and Food Chemistry, Department of Food Chemistry and Analysis, Gustav-Meyer-Allee 25, D-13355 Berlin, Germany
| | - Sascha Rohn
- University of Hamburg, Hamburg School of Food Science, Institute of Food Chemistry, Grindelallee 117, D-20146 Hamburg, Germany.
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21
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Xu Y, Xu Y, Luan H, Jiang Y, Tian X, Zhang S. Cardioprotection against experimental myocardial ischemic injury using cornin. Braz J Med Biol Res 2016; 49:e5039. [PMID: 26871971 PMCID: PMC4742973 DOI: 10.1590/1414-431x20155039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 10/13/2015] [Indexed: 02/03/2023] Open
Abstract
Phosphorylated-cyclic adenosine monophosphate response element-binding protein (Phospho-CREB) has an important role in the pathogenesis of myocardial ischemia. We isolated the iridoid glycoside cornin from the fruit of Verbena officinalis L, investigated its effects against myocardial ischemia and reperfusion (I/R) injury in vivo, and elucidated its potential mechanism in vitro. Effects of cornin on cell viability, as well as expression of phospho-CREB and phospho-Akt in hypoxic H9c2 cells in vitro, and myocardial I/R injury in vivo, were investigated. Cornin attenuated hypoxia-induced cytotoxicity significantly in H9c2 cells in a concentration-dependent manner. Treatment of H9c2 cells with cornin (10 µM) blocked the reduction of expression of phospho-CREB and phospho-Akt in a hypoxic condition. Treatment of rats with cornin (30 mg/kg, iv) protected them from myocardial I/R injury as indicated by a decrease in infarct volume, improvement in hemodynamics, and reduction of severity of myocardial damage. Cornin treatment also attenuated the reduction of expression of phospho-CREB and phospho-Akt in ischemic myocardial tissue. These data suggest that cornin exerts protective effects due to an increase in expression of phospho-CREB and phospho-Akt.
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Affiliation(s)
- Y Xu
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Y Xu
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - H Luan
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Y Jiang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - X Tian
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - S Zhang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
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Dietary component isorhamnetin is a PPARγ antagonist and ameliorates metabolic disorders induced by diet or leptin deficiency. Sci Rep 2016; 6:19288. [PMID: 26775807 PMCID: PMC4726074 DOI: 10.1038/srep19288] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 12/08/2015] [Indexed: 01/10/2023] Open
Abstract
Studies on peroxisome proliferator-activated receptor (PPAR)-γ ligands have been focused on agonists. However, PPARγ activation may induce obesity and nonalcoholic fatty liver disease (NAFLD), one of the most challenging medical conditions. Here, we identified that isorhamnetin, a naturally occurring compound in fruits and vegetables and the metabolite of quercetin, is a novel antagonist of PPARγ. Isorhamnetin treatment inhibited the adipocyte differentiation induced by the PPARγ agonist rosiglitazone, reduced obesity development and ameliorated hepatic steatosis induced by both high-fat diet treatment and leptin deficiency. Our results suggest that dietary supplement of isorhamnetin may be beneficial to prevent obesity and steatosis and PPARγ antagonists may be useful to treat hepatic steatosis.
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23
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Flavonol profile of cactus fruits ( Opuntia ficus-indica ) enriched cereal-based extrudates: Authenticity and impact of extrusion. Food Res Int 2015; 78:442-447. [DOI: 10.1016/j.foodres.2015.08.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 08/13/2015] [Accepted: 08/15/2015] [Indexed: 11/30/2022]
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24
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Manu KA, Shanmugam MK, Ramachandran L, Li F, Siveen KS, Chinnathambi A, Zayed M, Alharbi SA, Arfuso F, Kumar AP, Ahn KS, Sethi G. Isorhamnetin augments the anti-tumor effect of capeciatbine through the negative regulation of NF-κB signaling cascade in gastric cancer. Cancer Lett 2015; 363:28-36. [DOI: 10.1016/j.canlet.2015.03.033] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 03/18/2015] [Accepted: 03/18/2015] [Indexed: 01/28/2023]
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25
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Xie Y, Duan J, Fu Q, Xia M, Zhang L, Li G, Wu T, Ji G. Comparison of isorhamnetin absorption properties in total flavones of Hippophae rhamnoides L. with its pure form in a Caco-2 cell model mediated by multidrug resistance-associated protein. Eur J Pharm Sci 2015. [DOI: 10.1016/j.ejps.2015.03.008
expr 998777939 + 995765851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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26
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Xie Y, Duan J, Fu Q, Xia M, Zhang L, Li G, Wu T, Ji G. Comparison of isorhamnetin absorption properties in total flavones of Hippophae rhamnoides L. with its pure form in a Caco-2 cell model mediated by multidrug resistance-associated protein. Eur J Pharm Sci 2015; 73:1-8. [DOI: 10.1016/j.ejps.2015.03.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 03/14/2015] [Accepted: 03/16/2015] [Indexed: 12/12/2022]
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27
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Moussa-Ayoub TE, Abd El-Hady ESA, Omran HT, El-Samahy SK, Kroh LW, Rohn S. Influence of cultivar and origin on the flavonol profile of fruits and cladodes from cactus Opuntia ficus-indica. Food Res Int 2014; 64:864-872. [DOI: 10.1016/j.foodres.2014.08.021] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 08/04/2014] [Accepted: 08/24/2014] [Indexed: 11/25/2022]
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28
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Nopal cactus (Opuntia ficus-indica) as a source of bioactive compounds for nutrition, health and disease. Molecules 2014; 19:14879-901. [PMID: 25232708 PMCID: PMC6270776 DOI: 10.3390/molecules190914879] [Citation(s) in RCA: 174] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 09/04/2014] [Accepted: 09/08/2014] [Indexed: 01/19/2023] Open
Abstract
Opuntia ficus-indica, commonly referred to as prickly pear or nopal cactus, is a dicotyledonous angiosperm plant. It belongs to the Cactaceae family and is characterized by its remarkable adaptation to arid and semi-arid climates in tropical and subtropical regions of the globe. In the last decade, compelling evidence for the nutritional and health benefit potential of this cactus has been provided by academic scientists and private companies. Notably, its rich composition in polyphenols, vitamins, polyunsaturated fatty acids and amino acids has been highlighted through the use of a large panel of extraction methods. The identified natural cactus compounds and derivatives were shown to be endowed with biologically relevant activities including anti-inflammatory, antioxidant, hypoglycemic, antimicrobial and neuroprotective properties. The present review is aimed at stressing the major classes of cactus components and their medical interest through emphasis on some of their biological effects, particularly those having the most promising expected health benefit and therapeutic impacts.
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Dong GZ, Lee JH, Ki SH, Yang JH, Cho IJ, Kang SH, Zhao RJ, Kim SC, Kim YW. AMPK activation by isorhamnetin protects hepatocytes against oxidative stress and mitochondrial dysfunction. Eur J Pharmacol 2014; 740:634-40. [PMID: 24972246 DOI: 10.1016/j.ejphar.2014.06.017] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 06/11/2014] [Accepted: 06/17/2014] [Indexed: 01/19/2023]
Abstract
Arachidonic acid (AA) is a ω-6 polyunsaturated fatty acid that is found in the phospholipids of membranes and released from the cellular membrane lipid bilayer by phospholipase A2. During this process, AA could produce excess reactive oxygen species and induce apoptosis and mitochondrial dysfunction by selectively inhibiting complexes I and III. Isorhamnetin, an O-methylated flavonol aglycone, has been shown to have cardio-protective, anti-adipogenic, anti-tumor, and anti-inflammatory effects. In the present study, we investigated the effects of isorhamnetin on hepatotoxicity and the underlying mechanisms involved. Our in vitro experiments showed that isorhamnetin dose-dependently blocked the hepatotoxicity induced by treatment with AA plus iron in HepG2 cells. Furthermore, isorhamnetin inhibited the AA+iron induced generation of reactive oxygen species and reduction of glutathione, and subsequently maintained mitochondria membrane potential in AA+iron treated HepG2 cells. In addition, isorhamnetin activated AMP-activated protein kinase (AMPK) by Thr-172 phosphorylation of AMPKα, and this was mediated with Ca2+/calmodulin-dependent protein kinase kinase-2 (CaMKK2), but not liver kinase B1. Experiments using CaMKK2 siRNA or its selective inhibitor, STO-609, revealed the role of CaMKK2 in the isorhamnetin-induced activation of AMPK in HepG2 cells. These results indicate isorhamnetin protects against the hepatotoxic effect of AA plus iron, and suggest that the AMPK pathway is involved in the mechanism underlying the beneficial effect of isorhamnetin in the liver.
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Affiliation(s)
- Guang-Zhi Dong
- Medical research center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828 Republic of Korea
| | - Ju-Hee Lee
- Medical research center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828 Republic of Korea
| | - Sung Hwan Ki
- College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
| | - Ji Hye Yang
- College of Pharmacy, Chosun University, Gwangju 501-759, Republic of Korea
| | - Il Je Cho
- Medical research center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828 Republic of Korea
| | - Seung Ho Kang
- Medical research center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828 Republic of Korea; Sunlin University, Pohang, Gyeongbuk, Republic of Korea
| | - Rong Jie Zhao
- Medical research center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828 Republic of Korea; Department of Pharmacology, Mudanjiang Medical University, Heilongjiang, China.
| | - Sang Chan Kim
- Medical research center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828 Republic of Korea.
| | - Young Woo Kim
- Medical research center for Globalization of Herbal Formulation, College of Oriental Medicine, Daegu Haany University, Daegu 706-828 Republic of Korea; College of Oriental Medicine, Dongguk University, Gyeongju, Gyeongbuk, Republic of Korea.
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Duan J, Xie Y, Luo H, Li G, Wu T, Zhang T. Transport characteristics of isorhamnetin across intestinal Caco-2 cell monolayers and the effects of transporters on it. Food Chem Toxicol 2014; 66:313-20. [PMID: 24525098 DOI: 10.1016/j.fct.2014.02.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 01/10/2014] [Accepted: 02/01/2014] [Indexed: 11/30/2022]
Abstract
Flavonoid isorhamnetin occurs in various plants and herbs, and demonstrates various biological effects in humans. This work will clarify the isorhamnetin absorption mechanism using the Caco-2 monolayer cell model. The isorhamnetin transport characteristics at different concentrations, pHs, temperatures, tight junctions and potential transporters were systemically investigated. Isorhamnetin was poorly absorbed by both passive diffusion and active transport mechanisms. Both trans- and paracellular pathways were involved during isorhamnetin transport. Active transport under an ATP-dependent transport mechanism was mediated by the organic anion transporting peptide (OATP); isorhamnetin's permeability from the apical to the basolateral side significantly decreased after estrone-3-sulfate was added (p<0.01). Efflux transporters, P-glycoproteins (P-gp), breast cancer resistance proteins (BCRP) and multidrug resistance proteins (MRPs) participated in the isorhamnetin transport process. Among them, the MRPs (especially MRP2) were the main efflux transporters for isorhamnetin; transport from the apical to the basolateral side increased 10.8-fold after adding an MRP inhibitor (MK571). This study details isorhamnetin's cellular transport and elaborates isorhamnetin's absorption mechanisms to provide a foundation for further studies.
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Affiliation(s)
- Jingze Duan
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Research Center for Health and Nutrition, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yan Xie
- Research Center for Health and Nutrition, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Huilin Luo
- Research Center for Health and Nutrition, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Experiment Center of Teaching & Learning, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Guowen Li
- Pharmacy Department, Shanghai TCM-integrated Hospital, Shanghai 200082, China.
| | - Tao Wu
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Tong Zhang
- Experiment Center of Teaching & Learning, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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Aires A, Carvalho R, Rosa EAS, Saavedra MJ. Phytochemical characterization and antioxidant properties of baby-leaf watercress produced under organic production system. CYTA - JOURNAL OF FOOD 2013. [DOI: 10.1080/19476337.2013.769025] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Tang L, Peng Y, Xu T, Yi X, Liu Y, Luo Y, Yin D, He M. The effects of quercetin protect cardiomyocytes from A/R injury is related to its capability to increasing expression and activity of PKCε protein. Mol Cell Biochem 2013; 382:145-52. [DOI: 10.1007/s11010-013-1729-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2013] [Accepted: 06/14/2013] [Indexed: 12/25/2022]
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Sun J, Sun G, Meng X, Wang H, Luo Y, Qin M, Ma B, Wang M, Cai D, Guo P, Sun X. Isorhamnetin protects against doxorubicin-induced cardiotoxicity in vivo and in vitro. PLoS One 2013; 8:e64526. [PMID: 23724057 PMCID: PMC3665796 DOI: 10.1371/journal.pone.0064526] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 04/15/2013] [Indexed: 12/21/2022] Open
Abstract
Doxorubicin (Dox) is an anthracycline antibiotic for cancer therapy with limited usage due to cardiotoxicity. Isorhamnetin is a nature antioxidant with obvious cardiac protective effect. The aim of this study is going to investigate the possible protective effect of isorhamnetin against Dox-induced cardiotoxicity and its underlying mechanisms. In an in vivo investigation, rats were intraperitoneally (i.p.) administered with Dox to duplicate the model of Dox-induced chronic cardiotoxicity. Daily pretreatment with isorhamnetin (5 mg/kg, i.p.) for 7 days was found to reduce Dox-induced myocardial damage significantly, including the decline of cardiac index, decrease in the release of serum cardiac enzymes and amelioration of heart vacuolation. In vitro studies on H9c2 cardiomyocytes, isorhamnetin was effective to reduce Dox-induced cell toxicity. A further mechanism study indicated that isorhamnetin pretreatment can counteract Dox-induced oxidative stress and suppress the activation of mitochondrion apoptotic pathway and mitogen-activated protein kinase pathway. Isorhamnetin also potentiated the anti-cancer activity of Dox in MCF-7, HepG2 and Hep2 cells. These findings indicated that isorhamnetin can be used as an adjuvant therapy for the long-term clinical use of Dox.
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Affiliation(s)
- Jing Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Guibo Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Xiangbao Meng
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Hongwei Wang
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, Jiangsu, P. R. China
| | - Yun Luo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Meng Qin
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Bo Ma
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Min Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Dayong Cai
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Peng Guo
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Xiaobo Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
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Kang ZC, Jiang WL, Xu Y, Zhu HB, Hou J. Cardioprotection with 8-O-acetyl shanzhiside methylester on experimental myocardial ischemia injury. Eur J Pharm Sci 2012; 47:124-30. [PMID: 22677812 DOI: 10.1016/j.ejps.2012.05.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 05/03/2012] [Accepted: 05/27/2012] [Indexed: 11/18/2022]
Abstract
8-O-acetyl shanzhiside methylester (ND01) was isolated from the leaves of Lamiophlomis rotata (Benth.) Kudo. In this study, we investigated the anti-myocardial ischemia and reperfusion (I/R) injury effects of ND01 in vivo and elucidated the potential mechanism in vitro. The results indicated that ND01 significantly attenuated hypoxia-induced cytotoxicity in a concentration-dependent manner in H9c2 cells. Treatment of H9c2 cells with ND01 9 μM blocked TNF-α-induced nuclear factor kappaB (NF-κB) phosphorylation by blocking High-mobility group box1 (HMGB1) expression. Treatment of rats with ND01 10mg/kg, (i.v.) protected the animals from myocardial I/R injury as indicated by a decrease in infarct volume, improvement in hemodynamics and reduction of myocardial damage severity. Treatment with ND01 also lowered serum levels of pro-inflammatory factors and reduced High mobility group box-1 protein (HMGB1) and phosphorylated NF-κB expression in ischemic myocardial tissue. Additionally, continuous i.v. of ND01 14 days attenuated cardiac remodeling. These protective effects suggested that ND01 might be due to block of myocardial inflammatory cascades through an HMGB1-dependent NF-κB signaling pathway.
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Affiliation(s)
- Ze-Chun Kang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai 264003, PR China
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Sun B, Sun GB, Xiao J, Chen RC, Wang X, Wu Y, Cao L, Yang ZH, Sun XB. Isorhamnetin inhibits H₂O₂-induced activation of the intrinsic apoptotic pathway in H9c2 cardiomyocytes through scavenging reactive oxygen species and ERK inactivation. J Cell Biochem 2012; 113:473-85. [PMID: 21948481 DOI: 10.1002/jcb.23371] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
As a traditional Chinese medicine, the sea buckthorn (Hippophae rhamnoides L.) has a long history in the treatment of ischemic heart disease and circulatory disorders. However, the active compounds responsible for and the underlying mechanisms of these effects are not fully understood. In this article, isorhamnetin pretreatment counteracted H(2)O(2)-induced apoptotic damage in H9c2 cardiomyocytes. Isorhamnetin did not inhibit the death receptor-dependent or extrinsic apoptotic pathways, as characterized by its absence in both caspase-8 inactivation and tBid downregulation along with unchanged Fas and TNFR1 mRNA levels. Instead, isorhamnetin specifically suppressed the mitochondria-dependent or intrinsic apoptotic pathways, as characterized by inactivation of caspase-9 and -3, maintenance of the mitochondrial membrane potential (ΔΨm), and regulation of a series of Bcl-2 family genes upstream of ΔΨm. The anti-apoptotic effects of isorhamnetin were linked to decreased ROS generation. H(2)O(2) activated ERK and p53, whereas isorhamnetin inhibited their activation. ERK overexpression overrode the isorhamnetin-induced inhibition of the intrinsic apoptotic pathway in H9c2 cardiomyocytes, which indicated that an ERK-dependent pathway was involved. Furthermore, N-acetyl cysteine (a potent ROS scavenger) could attenuate the H(2)O(2)-induced apoptosis. However, PD98059 (an ERK-specific inhibitor) could not effectively antagonize ROS generation, which indicates that ROS may be an upstream inducer of ERK. In conclusion, isorhamnetin inhibits the H(2)O(2)-induced activation of the intrinsic apoptotic pathway via ROS scavenging and ERK inactivation. Therefore, isorhamnetin is a promising reagent for the treatment of ROS-induced cardiomyopathy.
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Affiliation(s)
- Bing Sun
- Research Center for Pharmacology and Toxicology, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, P R China
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Chemical constituents of the Mexican mistletoe (Psittacanthus calyculatus). Molecules 2011; 16:9397-403. [PMID: 22071447 PMCID: PMC6264388 DOI: 10.3390/molecules16119397] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 11/04/2011] [Accepted: 11/07/2011] [Indexed: 11/16/2022] Open
Abstract
A phytochemical study of the methanol-soluble fraction of an aqueous extract of a sample of Psittacanthus calyculatus collected from the host plant Prosopsis laevigata (Smooth Mesquite) using several techniques, including co-chromatography coupled with UV detection, chromatographic purifications and IR, NMR and MS studies, resulted in the identification of gallic acid, two flavonol-3-biosides and the nonprotein amino acid N-methyl-trans-4-hydroxy-L-proline.
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Ojha S, Golechha M, Kumari S, Bhatia J, Arya DS. Glycyrrhiza glabra protects from myocardial ischemia-reperfusion injury by improving hemodynamic, biochemical, histopathological and ventricular function. ACTA ACUST UNITED AC 2011; 65:219-27. [PMID: 21975080 DOI: 10.1016/j.etp.2011.08.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 07/04/2011] [Accepted: 08/19/2011] [Indexed: 12/16/2022]
Abstract
Present study evaluated the cardioprotective effect of Glycyrrhiza glabra against ischemia-reperfusion injury (I-R) induced by ligation of left anterior descending coronary artery (LADCA) in rats. Ligation of LADCA for 45 min followed by 60 min of reperfusion has induced significant (p<0.05) heart dysfunction evidenced by significant (p<0.05) decrease in mean arterial pressure (MAP), heart rate (HR), contractility; (+)LVdP/dtmax and relaxation; (-)LVdP/dtmax along with increased left ventricular end diastolic pressure (LVEDP). Ligation induced I-R injury also significantly (p<0.05) decreased myocyte injury enzymes, creatine phosphokinase-MB (CK-MB) isoenzyme and lactate dehydrogenase (LDH) as well as antioxidant enzymes; superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px). Furthermore, I-R injury also induced lipid peroxidation evidenced by significant (p<0.05) increase in malondialdehyde (MDA) formation and histological perturbations concomitant to depletion of glutathione (GSH) from heart. However, pretreatment with G. glabra significantly (p<0.05) prevented the depletion of the antioxidant enzymes; SOD, CAT, GSH-Px and myocyte injury marker enzymes; CK-MB isoenzyme and LDH. Pretreatment with G. glabra also prevented GSH depletion and inhibited lipid peroxidation in heart. In addition to improving biochemical indices of myocardial function, G. glabra also significantly (p<0.05) reinstated MAP, HR, (±)LVdP/dtmax and attenuated abrupt rise in LVEDP. Histopathological preservation evidenced by reduced infiltration of cells and myonecrosis depicted the myocardial salvaging effect of G. glabra. Taken together, results of the present study clearly suggest the cardioprotective potential of G. glabra against myocardial infarction by amelioration of oxidative stress and favorable modulation of cardiac function.
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Affiliation(s)
- Shreesh Ojha
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi 110029, India.
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Jiang WL, Zhang SP, Zhu HB, Hou J. Cardioprotection of Asperosaponin X on experimental myocardial ischemia injury. Int J Cardiol 2011; 155:430-6. [PMID: 21696837 DOI: 10.1016/j.ijcard.2011.06.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Revised: 05/20/2011] [Accepted: 06/04/2011] [Indexed: 11/26/2022]
Abstract
BACKGROUND Asperosaponin X was isolated from the roots of Dipsacus asper. In this study, we investigated the anti-myocardial ischemia and reperfusion (I/R) injury effects of Asperosaponin X in vivo and elucidated the potential mechanism in vitro. RESULTS Asperosaponin X significantly attenuated hypoxia-induced cytotoxicity in a concentration-dependent manner in H9c2 cells. Treatment of H9c2 cells with Asperosaponin X 5 μM or 10 μM blocked TNF-α-induced nuclear factor kappaB (NF-κB) phosphorylation by blocking HMGB1 expression. Treatment of rats with Asperosaponin X 10mg/kg, (i.v.) protected the animals from myocardial I/R injury as indicated by a decrease in infarct volume, improvement in hemodynamics and reduction of myocardial damage severity. Treatment with Asperosaponin X also lowered serum levels of pro-inflammatory factors and reduced High mobility group box-1 protein (HMGB1), phosphorylated IκB-α and NF-κB expression in ischemic myocardial tissue. Additionally, continuous i.v. of Asperosaponin X 14 days attenuated cardiac remodeling. CONCLUSIONS These protective effects suggested that Asperosaponin X may be due to block of myocardial inflammatory cascades through an HMGB1-dependent NF-κB signaling pathway.
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Affiliation(s)
- Wang-Lin Jiang
- Pharmacy department, Binzhou Medical University (Yantai) 264003, PR China
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