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Zhang T, Lv J, Liu ZY, Lei QL, Jiang ZF, Sun XX, Yue X, Li X, Zhu KL, Yang YK, Luo L, Cao X. P2X7 receptor is essential for ST36-attenuated cardiac fibrosis upon beta-adrenergic insult. Purinergic Signal 2024:10.1007/s11302-024-10009-y. [PMID: 38676825 DOI: 10.1007/s11302-024-10009-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/15/2024] [Indexed: 04/29/2024] Open
Abstract
P2X7 receptor (P2X7R) plays an important role in modulating inflammation and fibrosis, but information is limited whether Zusanli (ST36) can inhibit inflammation and fibrosis by regulating P2X7R. Isoprenaline at 5 mg/kg was subcutaneously injected to wild-type and P2X7R knockout mice for 7 days, while treatment groups received electroacupuncture (EA) stimulation at ST36 for 7 sessions. Following 7-session treatment, Masson's trichrome staining was performed to assess the fibrosis. Morphology, electrocardiogram, and echocardiography were carried out to evaluate the cardiac function and structure. Western blotting, hematoxylin and eosin staining, immunohistochemistry, and biochemical analysis of inflammatory cytokine and transmission electron microscopy were carried out to characterize the effect of ST36 on inflammation. P2X7R was overexpressed in ISO-treated mice. EA at ST36, but not at non-points, reduced ISO-induced cardiac fibrosis, increases in HW/BW, R+S wave relative to mice in ISO groups. In addition, EA at ST36 downregulated ISO-upregulated P2X7R and NLRP3 in ventricle. Moreover, EA reduced cytokines of IL-1β, IL-6, and IL-18 in serum, and inhibited foam cell gathering, inflammatory cell infiltration, and autophagy. However, EA at ST36 failed to attenuate the cardiac fibrosis and hypertrophy in P2X7R knockout mice. In conclusion, EA at ST36 attenuated ISO-induced fibrosis possibly via P2X7R.
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Affiliation(s)
- Ting Zhang
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Wenjiang District, Chengdu, 611137, Sichuan Province, China
| | - Jing Lv
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Wenjiang District, Chengdu, 611137, Sichuan Province, China
| | - Zhong-Yue Liu
- School of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, China
| | - Qiu-Lian Lei
- Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan, China
| | - Ze-Fei Jiang
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Wenjiang District, Chengdu, 611137, Sichuan Province, China
| | - Xiao-Xiang Sun
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Wenjiang District, Chengdu, 611137, Sichuan Province, China
| | - Xing Yue
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Wenjiang District, Chengdu, 611137, Sichuan Province, China
| | - Xuan Li
- School of Health and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Ke-Li Zhu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Wenjiang District, Chengdu, 611137, Sichuan Province, China
| | - Yun-Kuan Yang
- Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, Sichuan, China
| | - Ling Luo
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Wenjiang District, Chengdu, 611137, Sichuan Province, China.
| | - Xin Cao
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Wenjiang District, Chengdu, 611137, Sichuan Province, China.
- Acupuncture and Chronobiology Key Laboratory of Sichuan Province, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China.
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Liu S, Su L, Li J, Zhang Y, Hu X, Wang P, Liu P, Ye J. Inhibition of miR-146b-5p alleviates isoprenaline-induced cardiac hypertrophy via regulating DFCP1. Mol Cell Endocrinol 2024; 589:112252. [PMID: 38649132 DOI: 10.1016/j.mce.2024.112252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Pathological cardiac hypertrophy often precedes heart failure due to various stimuli, yet effective clinical interventions remain limited. Recently, microRNAs (miRNAs) have been identified as critical regulators of cardiovascular development. In this study, we investigated the role of miR-146b-5p and its underlying mechanisms of action in cardiac hypertrophy. Isoprenaline (ISO) treatment induced significant hypertrophy and markedly enhanced the expression of miR-146b-5p in cultured neonatal rat cardiomyocytes and hearts of C57BL/6 mice. Transfection with the miR-146b-5p mimic led to cardiomyocyte hypertrophy accompanied by autophagy inhibition. Conversely, miR-146b-5p inhibition significantly alleviated ISO-induced autophagy depression, thereby mitigating cardiac hypertrophy both in vitro and in vivo. Our results showed that the autophagy-related mediator double FYVE domain-containing protein 1 (DFCP1) is a target of miR-146b-5p. MiR-146b-5p blocked autophagic flux in cardiomyocytes by suppressing DFCP1, thus contributing to hypertrophy. These findings revealed that miR-146b-5p is a potential regulator of autophagy associated with the onset of cardiac hypertrophy, suggesting a possible therapeutic strategy involving the inhibition of miR-146b-5p.
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Affiliation(s)
- Siling Liu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, China
| | - Linjie Su
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, China
| | - Jie Li
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, China
| | - Yuexin Zhang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, China
| | - Xiaopei Hu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, China
| | - Pengcheng Wang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, China
| | - Peiqing Liu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, China.
| | - Jiantao Ye
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, China.
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Wang Q, Liang S, Qian J, Xu J, Zheng Q, Wang M, Guo X, Min J, Wu G, Zhuang Z, Luo W, Liang G. OTUD1 promotes isoprenaline- and myocardial infarction-induced heart failure by targeting PDE5A in cardiomyocytes. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167018. [PMID: 38185350 DOI: 10.1016/j.bbadis.2024.167018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/29/2023] [Accepted: 01/01/2024] [Indexed: 01/09/2024]
Abstract
Heart failure represents a major cause of death worldwide. Recent research has emphasized the potential role of protein ubiquitination/deubiquitination protein modification in cardiac pathology. Here, we investigate the role of the ovarian tumor deubiquitinase 1 (OTUD1) in isoprenaline (ISO)- and myocardial infarction (MI)-induced heart failure and its molecular mechanism. OTUD1 protein levels were raised markedly in murine cardiomyocytes after MI and ISO treatment. OTUD1 deficiency attenuated myocardial hypertrophy and cardiac dysfunction induced by ISO infusion or MI operation. In vitro, OTUD1 knockdown in neonatal rat ventricular myocytes (NRVMs) attenuated ISO-induced injuries, while OTUD1 overexpression aggravated the pathological changes. Mechanistically, LC-MS/MS and Co-IP studies showed that OTUD1 bound directly to the GAF1 and PDEase domains of PDE5A. OTUD1 was found to reverse K48 ubiquitin chain in PDE5A through cysteine at position 320 of OTUD1, preventing its proteasomal degradation. PDE5A could inactivates the cGMP-PKG-SERCA2a signaling axis which dysregulate the calcium handling in cardiomyocytes, and leading to the cardiomyocyte injuries. In conclusion, OTUD1 promotes heart failure by deubiquitinating and stabilizing PDE5A in cardiomyocytes. These findings have identified PDE5A as a new target of OTUD1 and emphasize the potential of OTUD1 as a target for treating heart failure.
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Affiliation(s)
- Qinyan Wang
- The Affiliated Cangnan Hospital and Chemical Biology Research Center, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China; Department of Cardiology and Medical Research Center, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Shiqi Liang
- The Affiliated Cangnan Hospital and Chemical Biology Research Center, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China; Department of Cardiology and Medical Research Center, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jinfu Qian
- Department of Cardiology and Medical Research Center, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Jiachen Xu
- Department of Cardiology and Medical Research Center, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Qingsong Zheng
- The Affiliated Cangnan Hospital and Chemical Biology Research Center, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Mengyang Wang
- Department of Pharmacology, College of Pharmacy, Beihua University, Jilin, Jilin 132013, China
| | - Xiaochen Guo
- The Affiliated Cangnan Hospital and Chemical Biology Research Center, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Julian Min
- The Affiliated Cangnan Hospital and Chemical Biology Research Center, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Gaojun Wu
- Department of Cardiology and Medical Research Center, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Zaishou Zhuang
- The Affiliated Cangnan Hospital and Chemical Biology Research Center, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Wu Luo
- The Affiliated Cangnan Hospital and Chemical Biology Research Center, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China; Department of Cardiology and Medical Research Center, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Guang Liang
- The Affiliated Cangnan Hospital and Chemical Biology Research Center, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China; Department of Cardiology and Medical Research Center, The First Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China; School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China.
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Chisty TTE, Sarif S, Jahan I, Ismail IN, Chowdhury FI, Siddiqua S, Yasmin T, Islam MN, Khan F, Subhan N, Alam MA. Protective effects of l-carnitine on isoprenaline -induced heart and kidney dysfunctions: Modulation of inflammation and oxidative stress-related gene expression in rats. Heliyon 2024; 10:e25057. [PMID: 38322874 PMCID: PMC10845729 DOI: 10.1016/j.heliyon.2024.e25057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 12/11/2023] [Accepted: 01/19/2024] [Indexed: 02/08/2024] Open
Abstract
The aim of this study was to evaluate the effect of l-carnitine (L-CAR) treatment on isoprenaline (ISO) administered kidney and heart impairment in male Long Evans rats. Four groups of rats were engaged in this study such as control, ISO, control + L-CAR, and ISO + L-CAR, where n = 6 in each group. The rats were also provided with chow food and water ad libitum. At the end of the study, all rats were sacrificed, and blood and tissue samples were collected for bio-chemical analysis. Oxidative stress parameters and antioxidant enzyme activities were determined in plasma and tissues. Antioxidant and inflammatory genes expression were analyzed in the kidney cortex, and histopathological studies of kidney tissues were performed. This study showed that creatinine and uric acid in plasma were significantly increased in ISO-administered rats. l-carnitine treatment lowered the uric acid and creatinine level. ISO-administered rats showed increased lipid peroxidation and declined levels of antioxidant enzymes activities in kidneys and heart. l-carnitine treatment restored antioxidant enzymes activities and protect against oxidative stress in kidney and heart. This effect is correlated with the restoration of Nrf-2-HO-1 genes expression followed by increased SOD and catalase genes expression in the kidney. l-carnitine treatment also prevented the TNF-α, IL-6, and NF-кB expression in kidneys of ISO administered rats. Histopathology staining showed that l-carnitine treatment prevented kidney damage and collagen deposition in ISO administered rats. The result of this study exhibited that l-carnitine treatment reduced oxidative stress and increased antioxidant enzyme activities by enhancing antioxidant genes expression in ISO administered rats.
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Affiliation(s)
| | - Sumaia Sarif
- Department of Pharmaceutical Sciences, North South University, Bangladesh
| | - Ishrat Jahan
- Department of Pharmaceutical Sciences, North South University, Bangladesh
| | | | | | | | - Tahmina Yasmin
- Department of Pharmaceutical Sciences, North South University, Bangladesh
| | - Md Nurul Islam
- Department of Pharmaceutical Sciences, North South University, Bangladesh
| | - Ferdous Khan
- Department of Pharmaceutical Sciences, North South University, Bangladesh
| | - Nusrat Subhan
- Department of Pharmaceutical Sciences, North South University, Bangladesh
| | - Md Ashraful Alam
- Department of Pharmaceutical Sciences, North South University, Bangladesh
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Elsayed M, Moustafa YM, Mehanna ET, Elrayess RA, El-Sayed NM, Hazem RM. Empagliflozin protects against isoprenaline-induced fibrosis in rat heart through modulation of TGF-β/SMAD pathway. Life Sci 2024; 337:122354. [PMID: 38110076 DOI: 10.1016/j.lfs.2023.122354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/09/2023] [Accepted: 12/12/2023] [Indexed: 12/20/2023]
Abstract
AIM Cardiac fibrosis is characterized by excessive accumulation of fibrous tissue, particularly collagens, in the myocardium. Accumulated fibrous tissue renders myocardium stiffer and reduces its contractility. Empagliflozin is an oral hypoglycemic agent with extra-diabetic functional profile toward maintaining cardiac functions. The present study aimed to examine protective effect of empagliflozin against an in-vivo model of cardiac fibrosis induced by isoprenaline and targeting TGF-β/SMAD signaling as a possible pathway responsible for such effect. MAIN METHODS Sixty animals were divided into six groups; the first was normal, and the second was treated with isoprenaline only (5 mg/kg/day I.P.) as a control. The third received pirfenidone (500 mg/kg/day P.O.), and the remaining groups received graded doses (5, 10, 20 mg/kg respectively) of empagliflozin for 14 days before fibrosis induction by isoprenaline (5 mg/kg/day) for 30 days. KEY FINDINGS Isoprenaline increased cardiac enzymes, and cardiac tissues revealed elevated concentrations of transforming growth factor β (TGF-β1), monocyte chemoattractant protein 1 (MCP-1), tumor necrosis factor α (TNF-α), and c-jun N-terminal kinase (JNK) proteins. Expression of nuclear factor kappa B (NF-κB), alpha smooth muscle actin (α-SMA), collagens, suppressor of mothers against decapentaplegic (SMADs), connective tissue growth factor (CTGF), and fibronectin was upregulated. Empagliflozin improved the histological picture of heart tissue in comparison to fibrosis developed in controls, and protected against fibrosis through significant modulation of all mentioned parameters' concentrations and expressions. SIGNIFICANCE Empagliflozin demonstrated a promising protective approach against biological model of cardiac fibrosis through an anti-fibrotic effect through targeting TGF-β signaling pathways.
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Affiliation(s)
- Mohammed Elsayed
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Yasser M Moustafa
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; Department of Pharmacology & Toxicology, Faculty of Pharmacy, Badr University in Cairo, Cairo 11829, Egypt
| | - Eman T Mehanna
- Department of Biochemistry, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt; Department of Biochemistry, Faculty of Pharmacy, Galala University, New Galala 43713, Egypt.
| | - Ranwa A Elrayess
- Department of Zoology, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Norhan M El-Sayed
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
| | - Reem M Hazem
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia 41522, Egypt
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Xu J, Liang S, Wang Q, Zheng Q, Wang M, Qian J, Yu T, Lou S, Luo W, Zhou H, Liang G. JOSD2 mediates isoprenaline-induced heart failure by deubiquitinating CaMKIIδ in cardiomyocytes. Cell Mol Life Sci 2024; 81:18. [PMID: 38195959 DOI: 10.1007/s00018-023-05037-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/01/2023] [Accepted: 10/03/2023] [Indexed: 01/11/2024]
Abstract
Prolonged stimulation of β-adrenergic receptor (β-AR) can lead to sympathetic overactivity that causes pathologic cardiac hypertrophy and fibrosis, ultimately resulting in heart failure. Recent studies suggest that abnormal protein ubiquitylation may contribute to the pathogenesis of cardiac hypertrophy and remodeling. In this study, we demonstrated that deficiency of a deubiquitinase, Josephin domain-containing protein 2 (JOSD2), ameliorated isoprenaline (ISO)- and myocardial infarction (MI)-induced cardiac hypertrophy, fibrosis, and dysfunction both in vitro and in vivo. Conversely, JOSD2 overexpression aggravated ISO-induced cardiac pathology. Through comprehensive mass spectrometry analysis, we identified that JOSD2 interacts with Calcium-calmodulin-dependent protein kinase II (CaMKIIδ). JOSD2 directly hydrolyzes the K63-linked polyubiquitin chains on CaMKIIδ, thereby increasing the phosphorylation of CaMKIIδ and resulting in calcium mishandling, hypertrophy, and fibrosis in cardiomyocytes. In vivo experiments showed that the cardiac remodeling induced by JOSD2 overexpression could be reversed by the CaMKIIδ inhibitor KN-93. In conclusion, our study highlights the role of JOSD2 in mediating ISO-induced cardiac remodeling through the regulation of CaMKIIδ ubiquitination, and suggests its potential as a therapeutic target for combating the disease. Please check and confirm that the authors and their respective affiliations have been correctly identified and amend if necessary. All have been checked.
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Affiliation(s)
- Jiachen Xu
- Department of Cardiology, Medical Research Center, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Shiqi Liang
- Department of Cardiology, Medical Research Center, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Qinyan Wang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Qingsong Zheng
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Mengyang Wang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
- Department of Pharmacology, College of Pharmacy, Beihua University, Jilin, 132013, Jilin, China
| | - Jinfu Qian
- Department of Cardiology, Medical Research Center, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Tianxiang Yu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Shuaijie Lou
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Wu Luo
- Department of Cardiology, Medical Research Center, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China.
| | - Hao Zhou
- Department of Cardiology, Medical Research Center, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China.
| | - Guang Liang
- Department of Cardiology, Medical Research Center, the First Affiliated Hospital, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China.
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China.
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, 311399, Zhejiang, China.
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Valovič P, Behuliak M, Vaněčková I, Zicha J. Impaired vascular β-adrenergic relaxation in spontaneously hypertensive rats: The differences between conduit and resistance arteries. Eur J Pharmacol 2023; 958:176045. [PMID: 37708986 DOI: 10.1016/j.ejphar.2023.176045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/01/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023]
Abstract
It was suggested that impaired β-adrenergic relaxation in spontaneously hypertensive rats (SHR) might contribute to their high blood pressure (BP). Our study was focused on isoprenaline-induced dilatation of conduit femoral or resistance mesenteric arteries and on isoprenaline-induced BP reduction in SHR and Wistar-Kyoto rats (WKY). We confirmed decreased β-adrenergic relaxation of SHR femoral arteries due to the absence of its endothelium-independent component, whereas endothelium-dependent component of β-adrenergic smooth muscle relaxation was similar in both strains. Conversely, isoprenaline-induced relaxation of resistance mesenteric arteries was similar in both strains and this was true for endothelium-dependent and endothelium-independent components. We observed moderately reduced sensitivity of SHR mesenteric arteries to salmeterol (β2-adrenergic agonist) and this strain difference disappeared after endothelium removal. However, there was no difference in mesenteric arteries relaxation by dobutamine (β1-adrenergic agonist) which was independent of endothelium. The increasing isoprenaline doses elicited similar BP decrease in both rat strains, although BP sensitivity to isoprenaline was slightly decreased in SHR. The blockade of cyclooxygenase (indomethacin) and NO synthase (L-NAME) further reduced BP sensitivity to isoprenaline in SHR. On the other hand, salmeterol elicited similar BP decrease in both strains and the blockade of cyclooxygenase and NO synthase increased BP sensitivity to salmeterol in SHR as compared to WKY. In conclusion, attenuated β-adrenergic vasodilatation of conduit arteries of SHR but similar β-adrenergic relaxation of resistance mesenteric arteries from WKY and SHR and their similar BP response to β-adrenergic agonists do not support major role of altered β-adrenergic vasodilatation for high BP in genetic hypertension.
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Affiliation(s)
- Pavol Valovič
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Michal Behuliak
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Ivana Vaněčková
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Josef Zicha
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic.
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Selli AL, Ghasemi M, Watters T, Burton F, Smith G, Dietrichs ES. Proarrhythmic changes in human cardiomyocytes during hypothermia by milrinone and isoprenaline, but not levosimendan: an experimental in vitro study. Scand J Trauma Resusc Emerg Med 2023; 31:61. [PMID: 37880801 PMCID: PMC10601188 DOI: 10.1186/s13049-023-01134-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 10/15/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Accidental hypothermia, recognized by core temperature below 35 °C, is a lethal condition with a mortality rate up to 25%. Hypothermia-induced cardiac dysfunction causing increased total peripheral resistance and reduced cardiac output contributes to the high mortality rate in this patient group. Recent studies, in vivo and in vitro, have suggested levosimendan, milrinone and isoprenaline as inotropic treatment strategies in this patient group. However, these drugs may pose increased risk of ventricular arrhythmias during hypothermia. Our aim was therefore to describe the effects of levosimendan, milrinone and isoprenaline on the action potential in human cardiomyocytes during hypothermia. METHODS Using an experimental in vitro-design, levosimendan, milrinone and isoprenaline were incubated with iCell2 hiPSC-derived cardiomyocytes and cellular action potential waveforms and contraction were recorded from monolayers of cultured cells. Experiments were conducted at temperatures from 37 °C down to 26 °C. One-way repeated measures ANOVA was performed to evaluate differences from baseline recordings and one-way ANOVA was performed to evaluate differences between drugs, untreated control and between drug concentrations at the specific temperatures. RESULTS Milrinone and isoprenaline both significantly increases action potential triangulation during hypothermia, and thereby the risk of ventricular arrhythmias. Levosimendan, however, does not increase triangulation and the contractile properties also remain preserved during hypothermia down to 26 °C. CONCLUSIONS Levosimendan remains a promising candidate drug for inotropic treatment of hypothermic patients as it possesses ability to treat hypothermia-induced cardiac dysfunction and no increased risk of ventricular arrhythmias is detected. Milrinone and isoprenaline, on the other hand, appears more dangerous in the hypothermic setting.
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Affiliation(s)
- Anders Lund Selli
- Experimental and Clinical Pharmacology, Department of Medical Biology, Faculty of Health Sciences, UiT - The Arctic University of Norway, Postboks 6050, 9037, Langnes, Tromsø, Norway
| | | | | | - Francis Burton
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland
- Clyde Biosciences, Newhouse, Scotland
| | - Godfrey Smith
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, Scotland
- Clyde Biosciences, Newhouse, Scotland
| | - Erik Sveberg Dietrichs
- Experimental and Clinical Pharmacology, Department of Medical Biology, Faculty of Health Sciences, UiT - The Arctic University of Norway, Postboks 6050, 9037, Langnes, Tromsø, Norway.
- Center for Psychopharmacology, Diakonhjemmet Hospital, Oslo, Norway.
- Institute of Oral Biology, University of Oslo, Oslo, Norway.
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9
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Radhakrishnan A, Ensam B, Moody WE, Ludman PF. Isoprenaline induced myocardial infarction in a patient with high-grade atrioventricular block: a case report. Eur Heart J Case Rep 2023; 7:ytad358. [PMID: 37575531 PMCID: PMC10413318 DOI: 10.1093/ehjcr/ytad358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 07/06/2023] [Accepted: 07/26/2023] [Indexed: 08/15/2023]
Abstract
Background Isoprenaline is widely used in the treatment of symptomatic bradycardia. Myocardial infarction precipitated by the therapeutic use of isoprenaline has not been reported in the literature. Case summary We describe the case of a 67-year-old male patient who presented to our institution with symptomatic Mobitz type II 2:1 atrioventricular block. He had a several-month history of unexplained syncope. He had several cardiovascular risk factors but did not have a diagnosis of coronary artery disease. On admission, he was symptomatic with dizziness but had no chest pain. High-sensitivity troponin I was normal. After initiation of an isoprenaline infusion, he developed cardiac-sounding chest pain and an ischaemic electrocardiogram. Emergency coronary angiography was performed that demonstrated a severe mid-vessel stenosis in his right coronary artery that was treated with percutaneous coronary intervention and the deployment of one drug-eluting stent. He remained in Mobitz type II 2:1 atrioventricular block 48 hours after the procedure, and a dual-chamber permanent pacemaker was implanted. He was discharged in a stable condition with no further chest pain or bradyarrhythmia. Discussion To our knowledge, this is the first reported case of myocardial infarction precipitated by the therapeutic use of isoprenaline. Our hypothesis is that isoprenaline increased myocardial oxygen demand and induced a type 2 myocardial infarction in this patient with occult coronary artery disease. Isoprenaline should be used with caution in patients with confirmed or suspected coronary artery disease.
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Affiliation(s)
- Ashwin Radhakrishnan
- Department of Cardiology, Queen Elizabeth Hospital, Mindelsohn Way, Birmingham, West Midlands, B15 2GW, UK
| | - Bode Ensam
- Department of Cardiology, Queen Elizabeth Hospital, Mindelsohn Way, Birmingham, West Midlands, B15 2GW, UK
| | - William E Moody
- Department of Cardiology, Queen Elizabeth Hospital, Mindelsohn Way, Birmingham, West Midlands, B15 2GW, UK
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Vincent Drive, Birmingham, West Midlands, B15 2TT, UK
| | - Peter F Ludman
- Department of Cardiology, Queen Elizabeth Hospital, Mindelsohn Way, Birmingham, West Midlands, B15 2GW, UK
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Abdel-Nasser ZM, Zaafan MA, Abdelhamid AM. Modulation of the miR-122/Sirt-6/ACE2 axis on experimentally-induced myocardial infarction. Chem Biol Interact 2023; 369:110276. [PMID: 36414029 DOI: 10.1016/j.cbi.2022.110276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/03/2022] [Accepted: 11/18/2022] [Indexed: 11/20/2022]
Abstract
Myocardial infarction (MI) is a progressive myocardial necrosis that can lead to a number of life-threatening complications. MiRNAs have a crucial role in the pathogenesis of many cardiovascular diseases. Remarkably, miR-122 targets the sirtuin-6 (Sirt-6) gene, which is an essential regulator of cardiovascular function and is considered a partial angiotensin converting enzyme 2 (ACE2) activator. Modulation of this axis is supposed to contribute to MI pathogenesis. The current study aims to investigate the cardioprotective effects of xanthenone through targeting the miR-122/Sirt-6/ACE2 axis on experimentally-induced MI in rats. Xanthenone was administered for 14 days and isoprenaline was injected in the last 2 days of the experiment. Xanthenone treatment resulted in a significant downregulation of miR-122, which further upregulated Sirt-6 and thus activated the adenosine monophosphate-activated protein kinase (AMPK). AMPK increases ACE2 levels and results in a decrease in the level of its substrate angiotensin II resulting in the normalization of the inflammatory cytokines and the cardiac biomarkers. Finally, by targeting the miR-122/Sirt-6/AMPK/ACE2 axis, xanthenone has the potential to be a promising cardioprotective agent against MI.
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11
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Sultan A, Qureshi MA, Howarth FC. Effects of Isoprenaline on ventricular myocyte shortening and Ca 2+ transport in the Zucker rat. Eur J Pharmacol 2022; 933:175263. [PMID: 36100128 DOI: 10.1016/j.ejphar.2022.175263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/30/2022] [Accepted: 09/06/2022] [Indexed: 11/03/2022]
Abstract
Obesity is an important risk factor for diabetes mellitus (DM) which is a major global health problem. Electro-mechanical dysfunction has been extensively described in diabetic heart and cardiovascular complications are an important cause of mortality and morbidity in diabetic patients. OBJECTIVES To examine the effects of Isoprenaline (ISO) in obesity and diabesity on ventricular myocyte shortening and Ca2+ transport in Zucker fatty (ZF), Zucker diabetic fatty (ZDF) in comparison to Zucker lean (ZL) rats. METHODS Myocyte shortening and intracellular Ca2+ were investigated with video imaging and fluorescence photometry, respectively. RESULTS The amplitude of Isoprenaline stimulated shortening was significantly (p < 0.05) decreased in ZDF and ZF compared to ZL myocytes. The amplitude of Isoprenaline stimulated Ca2+ transient was also significantly (p < 0.05) reduced in ZF compared to ZL and modestly reduced in ZDF compared to ZL myocytes. Mean Isoprenaline stimulated time to peak along with time to half relaxation of shortening were unchanged in ZDF and ZF compared to ZL myocytes. Mean Isoprenaline stimulated time to peak Ca2+ transient was significantly shortened in ZF compared to ZL myocytes. Time to half decay of the Ca2+ transient was considerably prolonged in ZDF compared to ZL myocytes. Amplitude of Isoprenaline stimulated caffeine-evoked Ca2+ transients were significantly reduced in ZDF and ZF in comparison to ZL myocytes. CONCLUSION Isoprenaline was less effective at generating an increase in the amplitude of shortening in ZDF and ZF in comparison to ZL myocytes and defects in Ca2+ signaling, and in particular SR Ca2+ transport, might partly underlie these abnormalities.
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Affiliation(s)
- Ahmed Sultan
- Department of Physiology, College of Medicine & Health Sciences, UAE University, Al Ain, United Arab Emirates.
| | - Muhammad Anwar Qureshi
- Department of Physiology, College of Medicine & Health Sciences, UAE University, Al Ain, United Arab Emirates.
| | - Frank Christopher Howarth
- Department of Physiology, College of Medicine & Health Sciences, UAE University, Al Ain, United Arab Emirates.
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Lin ZR, Li ZZ, Cao YJ, Yu WJ, Ye JT, Liu PQ. GDH promotes isoprenaline-induced cardiac hypertrophy by activating mTOR signaling via elevation of α-ketoglutarate level. Naunyn Schmiedebergs Arch Pharmacol 2022. [PMID: 35904584 DOI: 10.1007/s00210-022-02252-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 05/01/2022] [Indexed: 10/16/2022]
Abstract
Numerous studies reveal that metabolism dysfunction contributes to the development of pathological cardiac hypertrophy. While the abnormal lipid and glucose utilization in cardiomyocytes responding to hypertrophic stimuli have been extensively studied, the alteration and implication of glutaminolysis are rarely discussed. In the present work, we provide the first evidence that glutamate dehydrogenase (GDH), an enzyme that catalyzes conversion of glutamate into ɑ-ketoglutarate (AKG), participates in isoprenaline (ISO)-induced cardiac hypertrophy through activating mammalian target of rapamycin (mTOR) signaling. The expression and activity of GDH were enhanced in cultured cardiomyocytes and rat hearts following ISO treatment. Overexpression of GDH, but not its enzymatically inactive mutant, provoked cardiac hypertrophy. In contrast, GDH knockdown could relieve ISO-triggered hypertrophic responses. The intracellular AKG level was elevated by ISO or GDH overexpression, which led to increased phosphorylation of mTOR and downstream effector ribosomal protein S6 kinase (S6K). Exogenous supplement of AKG also resulted in mTOR activation and cardiomyocyte hypertrophy. However, incubation with rapamycin, an mTOR inhibitor, attenuated hypertrophic responses in cardiomyocytes. Furthermore, GDH silencing protected rats from ISO-induced cardiac hypertrophy. These findings give a further insight into the role of GDH in cardiac hypertrophy and suggest it as a potential target for hypertrophy-related cardiomyopathy.
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Zhang Y, Ding Y, Li M, Yuan J, Yu Y, Bi X, Hong H, Ye J, Liu P. MicroRNA-34c-5p provokes isoprenaline-induced cardiac hypertrophy by modulating autophagy via targeting ATG4B. Acta Pharm Sin B 2022; 12:2374-2390. [PMID: 35646533 PMCID: PMC9136534 DOI: 10.1016/j.apsb.2021.09.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 02/06/2023] Open
Abstract
Pathological cardiac hypertrophy serves as a significant foundation for cardiac dysfunction and heart failure. Recently, growing evidence has revealed that microRNAs (miRNAs) play multiple roles in biological processes and participate in cardiovascular diseases. In the present research, we investigate the impact of miRNA-34c-5p on cardiac hypertrophy and the mechanism involved. The expression of miR-34c-5p was proved to be elevated in heart tissues from isoprenaline (ISO)-infused mice. ISO also promoted miR-34c-5p level in primary cultures of neonatal rat cardiomyocytes (NRCMs). Transfection with miR-34c-5p mimic enhanced cell surface area and expression levels of foetal-type genes atrial natriuretic factor (Anf) and β-myosin heavy chain (β-Mhc) in NRCMs. In contrast, treatment with miR-34c-5p inhibitor attenuated ISO-induced hypertrophic responses. Enforced expression of miR-34c-5p by tail intravenous injection of its agomir led to cardiac dysfunction and hypertrophy in mice, whereas inhibiting miR-34c-5p by specific antagomir could protect the animals against ISO-triggered hypertrophic abnormalities. Mechanistically, miR-34c-5p suppressed autophagic flux in cardiomyocytes, which contributed to the development of hypertrophy. Furthermore, the autophagy-related gene 4B (ATG4B) was identified as a direct target of miR-34c-5p, and miR-34c-5p was certified to interact with 3' untranslated region of Atg4b mRNA by dual-luciferase reporter assay. miR-34c-5p reduced the expression of ATG4B, thereby resulting in decreased autophagy activity and induction of hypertrophy. Inhibition of miR-34c-5p abolished the detrimental effects of ISO by restoring ATG4B and increasing autophagy. In conclusion, our findings illuminate that miR-34c-5p participates in ISO-induced cardiac hypertrophy, at least partly through suppressing ATG4B and autophagy. It suggests that regulation of miR-34c-5p may offer a new way for handling hypertrophy-related cardiac dysfunction.
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Key Words
- 3-MA, 3-methyladenine
- 3′ UTR, 3′ untranslated region
- ANF, atrial natriuretic factor
- ATG4B
- ATG4B, autophagy related gene 4B
- Autophagic flux
- Autophagy
- BNP, brain natriuretic polypeptide
- Baf A1, bafilomycin A1
- CQ, Chloroquine
- EF, ejection fraction
- FS, fractional shortening
- GFP, green fluorescent protein
- HE, hematoxylin–eosin
- ISO, isoprenaline
- IVS,d: interventricular septal wall dimension at end-diastole, IVS,s: interventricular septal well dimension at end-systole
- Isoprenaline
- LC3
- LC3, microtubule-associated protein 1 light chain 3
- LV Vol,d, left ventricular end-diastolic volume
- LV Vol,s, left ventricular end-systolic volume
- LVID,d, left ventricular end-diastolic internal diameter
- LVID,s, left ventricular end-systolic internal diameter
- LVPW,d, left ventricular end-diastolic posterior wall thickness
- LVPW,s, left ventricular end-systolic posterior wall thickness
- Mice
- NS, normal saline
- Neonatal rat cardiomyocytes
- PSR, Picric–Sirius red
- Pathological cardiac hypertrophy
- mTOR, mammalian target of rapamycin
- miR-34c-5p
- miRNA, microRNA
- qRT-PCR, quantitative real-time polymerase chain reaction
- β-AR, β-adrenergic receptor
- β-MHC, beta-myosin heavy chain
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Hosseini A, Rajabian A, Sobhanifar MA, Alavi MS, Taghipour Z, Hasanpour M, Iranshahi M, Boroumand-Noughabi S, Banach M, Sahebkar A. Attenuation of isoprenaline-induced myocardial infarction by Rheum turkestanicum. Biomed Pharmacother 2022; 148:112775. [PMID: 35240528 DOI: 10.1016/j.biopha.2022.112775] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/13/2022] [Accepted: 02/27/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Oxidative stress plays a major role in the pathogenesis of myocardial infarction. This study evaluated the cardioprotective effects of the hydroalcoholic extract of Rheum turkestanicum on isoprenaline-induced myocardial infarction (MI) in Wistar rats. METHODS In this study, we used liquid chromatography-mass spectrometry to determine the active compounds present in the extract. Thirty rats were divided to 5 groups (6 rats in each group). The extract was administered orally at the doses of 100 and 300 mg/kg body weight and then a subcutaneous injection of isoprenaline (85 mg/kg) was administered on the 8th and 9th days. Serum levels of lactate dehydrogenase (LDH), creatine kinase-MB (CK-MB), and creatinine kinase (CPK) were measured using standard commercial kits. Serum activities of superoxide dismutase, catalase, and cardiac levels of thiol and lipid peroxidation were also determined. Hematoxylin and eosin were used for histopathological staining. RESULTS Phytochemical analysis revealed the presence of 24 compounds in the hydro-ethanolic extract of R. turkestanicum. Isoprenaline increased malondialdehyde (4.002 ± 0178, P < 0.001) while decreased thiol content (101.7 ± 6.186, P < 0.001). Moreover, reduced activities of superoxide dismutase (139 ± 10.88, P < 0.001) and catalase (2.812 ± 0.215, P < 0.001), and elevated levels of LDH (1245 ± 62.28, P < 0.001), CPK (898 ± 23.06, P < 0.001) and CK-MB (697 ± 50.22, P < 0.001) were observed. Pretreatment with the R. turkestanicum extract significantly reduced cardiac markers and increased thiol content as well as the activity of antioxidant enzymes. The extract attenuated the histopathological changes induced by isoprenaline. CONCLUSION According to the obtained results, R. turkestanicum may be an appropriate candidate to reduce isoprenaline-induced MI through modulation of oxidative stress. Administration of the extract attenuated cardiac enzymes following isoprenaline administration. The cardioprotective action of the extract can be attributed to the bioactive antioxidant ingredients of R. turkestanicum. To identify the precise mechanisms, further investigations are required.
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Sultan F, Kaur R, Tarfain NU, Mir AH, Dumka VK, Sharma SK, Singh Saini SP. Protective effect of rosuvastatin pretreatment against acute myocardial injury by regulating Nrf2, Bcl-2/Bax, iNOS, and TNF-α expressions affecting oxidative/nitrosative stress and inflammation. Hum Exp Toxicol 2022; 41:9603271211066065. [PMID: 35130744 DOI: 10.1177/09603271211066065] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Cardiovascular disorders are the leading cause of death globally. Rosuvastatin is a member of statins (inhibitors of 3-hydroxy-3-methylglutaryl coenzyme A reductase) with many pleiotropic properties. This study investigated cardioprotective effects of rosuvastatin in isoprenaline-induced myocardial injury. Male rats were given rosuvastatin (1, 5, or 10 mg/kg, oral) daily for 1 week and on seventh and eighth day isoprenaline (150 mg/kg, subcutaneous) was given to induce cardiac injury. On ninth day, rats were euthanized and different samples were harvested for analysis. Isoprenaline administration resulted in increased cardiac mass, increased cardiac injury marker levels (cTnI, CK-MB, ALT, and AST), increased lipid/protein oxidation, and increased cardiac nitrite levels. It also decreased superoxide dismutase, CAT, GST, and glutathione reductase activities, and total antioxidant activity. Isoprenaline also increased TNF-α and IL-6 levels. Decreased mRNA expression of Nrf2 and Bcl-2 along with increased mRNA expression of Bax, eNOS and iNOS genes was observed in isoprenaline treated animals. Histopathological evaluations of rosuvastatin pre-treated groups showed reduction of myocardial necrosis. Pretreatment with rosuvastatin (5 and 10 mg/kg) reduced many of these pathological changes. The current study showed that rosuvastatin significantly reduces myocardial injury induced by isoprenaline.
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Affiliation(s)
- Faheem Sultan
- Department of Veterinary Pharmacology & Toxicology, 91558GADVASU, Ludhiana, India
| | - Rajdeep Kaur
- Department of Veterinary Pharmacology & Toxicology, 91558GADVASU, Ludhiana, India
| | - Najeeb U Tarfain
- Department of Veterinary Microbiology, 91558GADVASU, Ludhiana, India
| | - Arshad H Mir
- Department of Veterinary Pharmacology & Toxicology, 91558GADVASU, Ludhiana, India
| | - Vinod K Dumka
- Department of Veterinary Pharmacology & Toxicology, 91558GADVASU, Ludhiana, India
| | - Suresh K Sharma
- Department of Veterinary Pharmacology & Toxicology, 91558GADVASU, Ludhiana, India
| | - Simrat P Singh Saini
- Department of Veterinary Pharmacology & Toxicology, 91558GADVASU, Ludhiana, India
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Dewenter M, Pan J, Knödler L, Tzschöckel N, Henrich J, Cordero J, Dobreva G, Lutz S, Backs J, Wieland T, Vettel C. Chronic isoprenaline/phenylephrine vs. exclusive isoprenaline stimulation in mice: critical contribution of alpha(1)-adrenoceptors to early cardiac stress responses. Basic Res Cardiol 2022; 117:15. [PMID: 35286475 DOI: 10.1007/s00395-022-00920-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 02/04/2022] [Accepted: 02/07/2022] [Indexed: 01/31/2023]
Abstract
Hyperactivity of the sympathetic nervous system is a major driver of cardiac remodeling, exerting its effects through both α-, and β-adrenoceptors (α-, β-ARs). As the relative contribution of subtype α1-AR to cardiac stress responses remains poorly investigated, we subjected mice to either subcutaneous perfusion with the β-AR agonist isoprenaline (ISO, 30 mg/kg × day) or to a combination of ISO and the stable α1-AR agonist phenylephrine (ISO/PE, 30 mg/kg × day each). Telemetry analysis revealed similar hemodynamic responses under both ISO and ISO/PE treatment i.e., permanently increased heart rates and only transient decreases in mean blood pressure during the first 24 h. Echocardiography and single cell analysis after 1 week of exposure showed that ISO/PE-, but not ISO-treated animals established α1-AR-mediated inotropic responsiveness to acute adrenergic stimulation. Morphologically, additional PE perfusion limited concentric cardiomyocyte growth and enhanced cardiac collagen deposition during 7 days of treatment. Time-course analysis demonstrated a diverging development in transcriptional patterns at day 4 of treatment i.e., increased expression of selected marker genes Xirp2, Nppa, Tgfb1, Col1a1, Postn under chronic ISO/PE treatment which was either less pronounced or absent in the ISO group. Transcriptome analyses at day 4 via RNA sequencing demonstrated that additional PE treatment caused a marked upregulation of genes allocated to extracellular matrix and fiber organization along with a more pronounced downregulation of genes involved in metabolic processes, muscle adaptation and cardiac electrophysiology. Consistently, transcriptome changes under ISO/PE challenge more effectively recapitulated early transcriptional alterations in pressure overload-induced experimental heart failure and in human hypertrophic cardiomyopathy.
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Ali A, Redfors B, Alkhoury J, Oras J, Henricsson M, Boren J, Björnson E, Espinosa A, Levin M, Gan LM, Omerovic E. Sacubitril/valsartan decreases mortality in the rat model of the isoprenaline-induced takotsubo-like syndrome. ESC Heart Fail 2021; 8:4130-4138. [PMID: 34463049 PMCID: PMC8497381 DOI: 10.1002/ehf2.13530] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/06/2021] [Accepted: 07/08/2021] [Indexed: 12/11/2022] Open
Abstract
Aims Takotsubo syndrome (TTS) is an acute potentially reversible cardiac syndrome characterized by variable regional myocardial akinesia that cannot be attributed to a culprit coronary artery occlusion. TTS is an important differential diagnosis of acute heart failure where brain natriuretic peptides are elevated. Sacubitril/valsartan is a novel and effective pharmacological agent for the treatment of patients with heart failure. Our aim was to explore whether treatment with sacubitril/valsartan could prevent isoprenaline‐induced takotsubo‐like phenotype in rats. Methods and results A total number of 186 Sprague–Dawley male rats were randomized to receive pretreatment with water (CONTROL, n = 62), valsartan (VAL, n = 62), or sacubitril/valsartan (SAC/VAL, n = 62) before receiving isoprenaline for induction of TTS. We recorded heart rate and blood pressure invasively. Cardiac morphology and function were evaluated by high‐resolution echocardiography 90 min after the administration of isoprenaline. We documented the survival rate at the time of echocardiography. Compared with the CONTROL group, the SAC/VAL group had less pronounced TTS‐like cardiac dysfunction and lower mortality rate, while the VAL group did not differ. Heart rate and blood pressure were not significantly different between the groups. Analysis of cardiac lipids was performed with mass spectrometry. The VAL and SAC/VAL groups had significantly higher levels of lysophosphatidylcholine (LPC), in particular LPC 18:1 and LPC 16:0. Conclusions Pretreatment with sacubitril/valsartan but not with valsartan reduces mortality and attenuates isoprenaline‐induced apical akinesia in the TTS‐like model in rats. Sacubitril/valsartan could be a potential treatment option in patients with TTS in humans.
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Affiliation(s)
- Anwar Ali
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Björn Redfors
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jessica Alkhoury
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jonatan Oras
- Department of Anesthesiology and Intensive Care Medicine, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Marcus Henricsson
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jan Boren
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Elias Björnson
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Aaron Espinosa
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Malin Levin
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Li-Ming Gan
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Research and Early Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Elmir Omerovic
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Feng K, Liu Y, Sun J, Zhao C, Duan Y, Wang W, Yan K, Yan X, Sun H, Hu Y, Han J. Compound Danshen Dripping Pill inhibits doxorubicin or isoproterenol-induced cardiotoxicity. Biomed Pharmacother 2021; 138:111531. [PMID: 34311530 DOI: 10.1016/j.biopha.2021.111531] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/19/2021] [Accepted: 03/21/2021] [Indexed: 12/11/2022] Open
Abstract
Heart failure (HF) is the advanced heart disease with high morbidity and mortality. Compound DanShen Dripping Pill (CDDP) is a widely used Traditional Chinese Medicine for cardiovascular disease treatment. Herein, we investigated if CDDP can protect mice against doxorubicin (DOX) or isoprenaline (ISO)-induced HF. After 3 days feeding of normal chow containing CDDP, mice were started DOX or ISO treatment for 4 weeks or 18 days. At the end of treatment, mice were conducted electrocardiogram and echocardiographic test. Blood and heart samples were determined biochemical parameters, myocardial structure and expression of the related molecules. CDDP normalized DOX/ISO-induced heart weight changes, HF parameters and fibrogenesis. The DOX/ISO-impaired left ventricular ejection fraction and fractional shortening were restored by CDDP. Mechanistically, CDDP blocked DOX/ISO-inhibited expression of antioxidant enzymes and DOX/ISO-induced expression of pro-fibrotic molecules, inflammation and cell apoptosis. Additional DOX/ISO-impaired targets in cardiac function but protected by CDDP were identified by RNAseq, qRT-PCR and Western blot. In addition, CDDP protected cardiomyocytes against oxygen-glucose deprivation-induced injuries. Taken together, our study shows that CDDP can protect against myocardial injuries in different models, suggesting its potential application for HF treatment.
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Affiliation(s)
- Ke Feng
- College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Nankai University, Tianjin, China
| | - Yuxin Liu
- College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Nankai University, Tianjin, China
| | - Jia Sun
- GeneNet Pharmaceuticals Co. Ltd., Tianjin, China
| | - Chunlai Zhao
- GeneNet Pharmaceuticals Co. Ltd., Tianjin, China
| | - Yajun Duan
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, Hefei University of Technology, Hefei, China
| | - Wenjia Wang
- GeneNet Pharmaceuticals Co. Ltd., Tianjin, China
| | - Kaijing Yan
- GeneNet Pharmaceuticals Co. Ltd., Tianjin, China; The State Key Laboratory of Core Technology in Innovative Chinese Medicine, Tasly Academy, Tasly Holding Group Co., Ltd, Tianjin, China; Tasly Pharmaceutical Group Co., Ltd, Tianjin, China
| | - Xijun Yan
- GeneNet Pharmaceuticals Co. Ltd., Tianjin, China; The State Key Laboratory of Core Technology in Innovative Chinese Medicine, Tasly Academy, Tasly Holding Group Co., Ltd, Tianjin, China; Tasly Pharmaceutical Group Co., Ltd, Tianjin, China
| | - He Sun
- GeneNet Pharmaceuticals Co. Ltd., Tianjin, China; The State Key Laboratory of Core Technology in Innovative Chinese Medicine, Tasly Academy, Tasly Holding Group Co., Ltd, Tianjin, China; Tasly Pharmaceutical Group Co., Ltd, Tianjin, China
| | - Yunhui Hu
- GeneNet Pharmaceuticals Co. Ltd., Tianjin, China.
| | - Jihong Han
- College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials of Ministry of Education, Nankai University, Tianjin, China.
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Nehdi A, Samman N, Mashhour A, Alhallaj A, Trivilegio T, Gul S, Reinshagen J, Alaskar A, Gmati G, Abuelgasim KA, Mansour F, Boudjelal M. A Drug Repositioning Approach Identifies a Combination of Compounds as a Potential Regimen for Chronic Lymphocytic Leukemia Treatment. Front Oncol 2021; 11:579488. [PMID: 34123769 PMCID: PMC8195271 DOI: 10.3389/fonc.2021.579488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 05/06/2021] [Indexed: 11/13/2022] Open
Abstract
Drug repositioning is a promising and powerful innovative strategy in the field of drug discovery. In this study, we screened a compound-library containing 800 Food and Drug Administration approved drugs for their anti-leukemic effect. All screening activities made use of human peripheral blood mononuclear cells (PBMCs), isolated from healthy or leukemic donors. Compounds with confirmed cytotoxicity were selected and classified in three groups: i) anti-neoplastic compounds which are drugs used in leukemia treatment, ii) compounds known to have an anti-cancer effect and iii) compounds demonstrating an anti-leukemic potential for the first time. The latter group was the most interesting from a drug repositioning perspective and yielded a single compound, namely Isoprenaline which is a non-selective β-adrenergic agonist. Analysis of the cytotoxic effect of this drug indicated that it induces sustainable intracellular ATP depletion leading, over time, to necrotic cell death. We exploited the Isoprenaline-induced intracellular ATP depletion to sensitize primary leukemic cells to fludarabine (purine analogue) and Ibrutinib (Bruton’s tyrosine kinase inhibitor) treatment. In-vitro treatment of primary leukemic cells with a combination of Isoprenaline/fludarabine or Isoprenaline/Ibrutinib showed a very high synergistic effect. These combinations could constitute a new efficient regimen for CLL treatment following successful evaluation in animal models and clinical trials.
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Affiliation(s)
- Atef Nehdi
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,Department of Life Sciences, Faculty of Sciences of Gabes, University of Gabes, Gabes, Tunisia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Nosaibah Samman
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Abdullah Mashhour
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Alshaimaa Alhallaj
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Thadeo Trivilegio
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Sheraz Gul
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME-ScreeningPort, Hamburg, Germany
| | - Jeanette Reinshagen
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME-ScreeningPort, Hamburg, Germany
| | - Ahmed Alaskar
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,Division of Hematology & HCT, Department of Oncology, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - Gamal Gmati
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,Division of Hematology & HCT, Department of Oncology, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - Khadega A Abuelgasim
- King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,Division of Hematology & HCT, Department of Oncology, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - Fatmah Mansour
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Mohamed Boudjelal
- Medical Research Core Facility and Platforms, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
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Selim S, Akter N, Nayan SI, Chowdhury FI, Saffoon N, Khan F, Ahmed KS, Ahmed MI, Hossain MM, Alam MA. Flacourtia indica fruit extract modulated antioxidant gene expression, prevented oxidative stress and ameliorated kidney dysfunction in isoprenaline administered rats. Biochem Biophys Rep 2021; 26:101012. [PMID: 34041370 DOI: 10.1016/j.bbrep.2021.101012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 04/13/2021] [Accepted: 04/30/2021] [Indexed: 11/22/2022] Open
Abstract
This study evaluated the effect of Flacourtia indica fruit extract against isoprenaline (ISO) induced renal damage in rats. This investigation showed that ISO administration in rats increased the level oxidative stress biomarkers such as malondialdehyde (MDA), nitric oxide (NO), advanced protein oxidation product (APOP) in kidneys followed by a decrease in antioxidant enzymes functions. Flacourtia indica fruit extract, which is rich in strong antioxidants, also reduced the MDA, NO and APOP level in kidney of ISO administered rats. Inflammation and necrosis was also visible in kidney section of ISO administered rats which was significantly prevented by atenolol and Flacourtia indica fruit extract. Moreover, atenolol and Flacourtia indica fruit extract also modulated the genes expressions related to inflammation and oxidative stress in kidneys. The beneficial effects could be attributed to the presence of a number of phenolic antioxidants. This study suggests that Flacourtia indica fruit extract may prevent kidney dysfunction in ISO administered rats, probably by preventing oxidative stress and inflammation.
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21
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Shaik AH, Shaik SR, Shaik AS, Daoud A, Salim M, Kodidhela LD. Analysis of maslinic acid and gallic acid compounds as xanthine oxidase inhibitors in isoprenaline administered myocardial necrotic rats. Saudi J Biol Sci 2021; 28:2575-2580. [PMID: 33911968 PMCID: PMC8071899 DOI: 10.1016/j.sjbs.2021.01.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE This research designed to analyze the in vivo and in silico ameliorative action of maslinic acid (MA) and gallic acid (GA) on reactive oxygen species generating enzyme xanthine oxidase (XO) in isoprenaline or isoproterenol (ISO) induced myocardial infarcted rats. METHODS Albino Wistar rats were categorized into four groups with eight rats in each group. A dose of 15 mg/kg of MA and GA were pretreated to each MA and GA groups for seven days. A dose of 85 mg/kg of ISO administered to the ISO group along with MA and GA groups except normal group on two consecutive days of pretreatment. All animals sacrificed and the heart tissues were collected for the analysis of XO. The in silico molecular docking analysis of the compounds MA and GA with XO was analyzed by using Gold 3.0.1 software. RESULTS XO enzyme levels were significantly increased in the heart homogenate of ISO administered rats when compared to normal rats. Pretreatment of MA and GA to ISO treated rats significantly brought XO enzyme to the near normal levels which indicate the protective action of MA and GA against myocardial necrosis. The in vivo results were further supported by the in silico molecular docking study which revealed the inhibition of XO enzyme by the formation of enzyme and ligand complex with the compounds MA and GA. CONCLUSION MA and GA compounds manifested the ameliorative effect against ISO administrated myocardial necrosis by inhibiting the free radical generating enzyme XO which is evidenced by both in vivo and in silico studies.
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Affiliation(s)
- Althaf Hussain Shaik
- Central Laboratory, Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Shajidha Ruksar Shaik
- Sri Adi Siva Sadguru Alli Saheb Sivaaryula Homeopathy Medical College, Guntakal, A.P., India
| | - Abdul Saheer Shaik
- Sri Ramakrishna Degree and P.G. College, Nandyal, Affiliated to Rayalaseema University, A.P., India
| | - Ali Daoud
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Manoharadas Salim
- Central Laboratory, Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
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Sharma P, Verma PK, Sood S, Pankaj NK, Agarwal S, Raina R. Neuroprotective potential of hydroethanolic hull extract of Juglans regia L. on isoprenaline induced oxidative damage in brain of Wistar rats. Toxicol Rep 2021; 8:223-229. [PMID: 33520664 PMCID: PMC7820311 DOI: 10.1016/j.toxrep.2021.01.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 01/05/2021] [Accepted: 01/09/2021] [Indexed: 11/18/2022] Open
Abstract
The study was aimed at assessing isoprenaline (ISO) induced oxidative damage in brain of Wistar rats and its protection by hydroethanolic hull extract of Juglans regia. Administration of ISO significantly increases catalase (CAT), superoxide dismutase (SOD), glutathione reductase (GR), malondialdehyde (MDA) and advanced oxidation protein product (AOPP) levels and significantly reduced activities of antioxidant status (TAS), total thiols (TTH), acetylcholinesterase (AChE), arylesterase (AE), and glutathione peroxidase (GPx) in rat brain. Histopathologically, neuronal degeneration, spongiosis and gliosis were seen in cerebral cortex after ISO administration. Pretreatment with hull extract restored TAS, TTH, AChE, CAT and SOD values. Additionally, significant reductions were noted in levels of MDA, AOPP, and severity of histomorphological changes in cerebral cortex following hull extract treatment. Altered antioxidant biomarkers along with histopathological changes indicate oxidative injury in rat brain following ISO administration. Repeated administration of J. regia hull extract demonstrating presence of neuroprotective properties against ISO induced oxidative damage in rat brain.
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Affiliation(s)
- Priyanka Sharma
- Division of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Science and Animal Husbandry, R S Pura, 181102, India
| | - Pawan K. Verma
- Division of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Science and Animal Husbandry, R S Pura, 181102, India
| | - Shilpa Sood
- Division of Veterinary Pathology, Faculty of Veterinary Science and Animal Husbandry, R S Pura, 181102, India
| | - Nrip K. Pankaj
- Division of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Science and Animal Husbandry, R S Pura, 181102, India
| | - Sanjay Agarwal
- Division of Veterinary Gynaecology and Obstetrics, Faculty of Veterinary Science and Animal Husbandry, R S Pura, 181102, India
| | - Rajinder Raina
- Division of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Science and Animal Husbandry, R S Pura, 181102, India
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Sun TL, Li WQ, Tong XL, Liu XY, Zhou WH. Xanthohumol attenuates isoprenaline-induced cardiac hypertrophy and fibrosis through regulating PTEN/AKT/mTOR pathway. Eur J Pharmacol 2021; 891:173690. [PMID: 33127362 DOI: 10.1016/j.ejphar.2020.173690] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 10/12/2020] [Accepted: 10/26/2020] [Indexed: 12/31/2022]
Abstract
Emerging evidence suggests the cardiovascular protective effects of Xanthohumol (Xn), a prenylated flavonoid isolated from the hops (Humulus lupulus L.). However, the cardioprotective effect of Xn remains unclear. Present study aimed to investigate the protective role of Xn against isoprenaline (ISO)-induced cardiac hypertrophy and fibrosis, and elucidate the underlying mechanism. The cardiac hypertrophy and fibrosis model were established via subcutaneously administration of ISO. ISO reduced the left ventricular contractile function and elevated myocardial enzyme levels, suggesting cardiac dysfunction. Moreover, the increased cardiac myocyte area, heart weight/body weight (HW/BW) ratio and ANP/BNP expressions indicated the ISO-induced hypertrophy, while the excessive collagen-deposition and up-regulation of fibrosis marker protein (α-SMA, Collagen-I/III) expression indicated the ISO-induced fibrosis. The ISO-induced cardiac dysfunction, hypertrophy and fibrosis were significantly attenuated by oral administrated with Xn. PTEN/AKT/mTOR pathway has been reported to involve in pathogenesis of cardiac hypertrophy and fibrosis. We found that Xn administration up-regulated PTEN expression and inhibited the phosphorylation of AKT/mTOR in ISO-treated mice. Moreover, treating with VO-ohpic, a specific PTEN inhibitor, abolished the cardioprotective effect of Xn. Collectively, these results suggested that Xn attenuated ISO-induced cardiac hypertrophy and fibrosis through regulating PTEN/AKT/mTOR pathway.
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MESH Headings
- Animals
- Disease Models, Animal
- Fibrosis
- Flavonoids/pharmacology
- Hypertrophy, Left Ventricular/chemically induced
- Hypertrophy, Left Ventricular/enzymology
- Hypertrophy, Left Ventricular/physiopathology
- Hypertrophy, Left Ventricular/prevention & control
- Isoproterenol
- Male
- Mice, Inbred C57BL
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/enzymology
- Myocytes, Cardiac/pathology
- PTEN Phosphohydrolase/metabolism
- Phosphorylation
- Propiophenones/pharmacology
- Proto-Oncogene Proteins c-akt/metabolism
- Signal Transduction
- TOR Serine-Threonine Kinases/metabolism
- Ventricular Dysfunction, Left/chemically induced
- Ventricular Dysfunction, Left/enzymology
- Ventricular Dysfunction, Left/physiopathology
- Ventricular Dysfunction, Left/prevention & control
- Ventricular Function, Left/drug effects
- Ventricular Remodeling/drug effects
- Mice
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Affiliation(s)
- Tao-Li Sun
- College of Pharmacy, Changsha Medical University, Changsha, 410219, China; Key Laboratory of Hu'nan Oriented Fundamental and Applied Research of Innovative Pharmaceutics, Changsha Medical University, Changsha, 410219, China.
| | - Wen-Qun Li
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Xiao-Liang Tong
- Department of Dermatology, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
| | - Xin-Yi Liu
- Department of Pharmacy, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Wen-Hu Zhou
- College of Pharmacy, Changsha Medical University, Changsha, 410219, China; Key Laboratory of Hu'nan Oriented Fundamental and Applied Research of Innovative Pharmaceutics, Changsha Medical University, Changsha, 410219, China.
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Singh PK, Gari M, Choudhury S, Shukla A, Gangwar N, Garg SK. Oleic Acid Prevents Isoprenaline-Induced Cardiac Injury: Effects on Cellular Oxidative Stress, Inflammation and Histopathological Alterations. Cardiovasc Toxicol 2020; 20:28-48. [PMID: 31154622 DOI: 10.1007/s12012-019-09531-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The present study was designed to assess the cardio-protective role of oleic acid in myocardial injury (MI) induced by intra-peritoneal injection of isoprenaline (ISO) in rats for 2 consecutive days. Oleic acid (OA) was administered orally (@ 5 mg/kg b.wt and 10 mg/kg b.wt) for 21 days before inducing MI. Pre-exposure to OA at higher dose significantly improved the HW/BW ratio, myocardial infarct size, lipid profiles (total cholesterol, HDL-C) and cardiac injury biomarkers (LDH, CK-MB, cardiac troponin-I, MMP-9), thus suggesting its cardio-protective role. The ameliorative potential of the higher dose of OA was further substantiated by its ability to reduce the cardiac oxidative stress as evidenced by significant decrease in lipid peroxidation coupled with increase in superoxide dismutase activity and reduced glutathione level. Significant decrease in heart rate as well as increase in RR and QT intervals in oleic acid pre-exposed rats were also observed. OA pre-treatment also reduced the histopathological alterations seen in myocardial injury group rats. The mRNA expression of cardiac UCP-2 gene, a regulator of reactive oxygen species (ROS) generation, was significantly increased in oleic acid pre-exposure group compared to the ISO-induced myocardial injury group. Thus increase in expression of UCP-2 gene in cardiac tissue seems to be one of the protective measures against myocardial injury. Based on the above findings, it may be inferred that oleic acid possesses promising cardio-protective potential against myocardial injury due to its anti-oxidative property and ability to modulate cardiac metabolic processes.
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25
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Ali A, Redfors B, Lundgren J, Alkhoury J, Oras J, Gan LM, Omerovic E. The importance of heart rate in isoprenaline-induced takotsubo-like cardiac dysfunction in rats. ESC Heart Fail 2020; 7:2690-2699. [PMID: 32686334 PMCID: PMC7524126 DOI: 10.1002/ehf2.12858] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 05/25/2020] [Accepted: 06/09/2020] [Indexed: 11/30/2022] Open
Abstract
Aims Takotsubo syndrome (TS) is an acute cardiac syndrome characterized by regional myocardial akinesia that cannot be attributed to a culprit lesion in coronary arteries. Cardiac overstimulation by catecholamines in the setting of stress is implicated in the pathogenesis of TS. While catecholamine‐induced alterations in cardiac contractility have been studied as part of the causal pathway in TS, the importance of catecholamine‐mediated tachycardia has not been studied. Our aim was to explore whether the reduction in heart rate, either by pharmacological suppression of the sinoatrial node with ivabradine or by surgical induction of third‐degree atrioventricular block, prevents isoprenaline‐induced TS‐like akinesia in an experimental animal model. Methods and results We used 142 female Sprague–Dawley rats in two separate protocols. The TS‐like phenotype was induced by an intraperitoneal bolus dose of isoprenaline (ISO) 50 mg/kg. In the first protocol, we randomized 54 rats to ivabradine 10 min before ISO (IVAB1), ivabradine 10 min after ISO (IVAB2), or saline 10 min before ISO (CONTROL). In the second protocol, we randomized 88 rats to surgically induced complete heart block (CHB) or sham operation (CTRL) 10 min before the administration of ISO. All drugs were administered intraperitoneally. We recorded heart rate and blood pressure invasively in the right carotid artery. Cardiac morphology and function were evaluated by high‐resolution echocardiography (VisualSonics 770 VEVO, Toronto, Ontario, Canada) 90 min after ISO injection. IVAB1 and IVAB2 rats had significantly lower heart rate and less pronounced TS‐like cardiac dysfunction than CONTROL. CHB rats had a lower (54%) heart rate, and no animal developed left ventricular akinesia. In the first protocol, the CONTROL group had a median degree of akinesia of 10.2 [inter‐quartile range (IQR) 0.0–18.6]. The IVAB1 group showed a median of akinesia of 0% (IQR 0.0–0.0, P < 0.001 vs. CONTROL). In the IVAB2 group, 5% had TS‐like dysfunction (P = 0.001). Ejection fraction was higher in both the IVAB1 (92%, IQR 89–95) and IVAB2 groups (93%, IQR 87–96) than in the CONTROL group (78%, IQR 63–87, P < 0.05). In the second protocol, the median degree of akinesia in the CTRL group was 21.9% (IQR 8.9–24.6). In the CHB group, no rat developed akinesia (median 0%; IQR 0.0–0.0, P < 0.001 vs. CONTROL). Ejection fraction was higher in the CHB group (90%, IQR 87–92) than in the CTRL group (51%, IQR 87–92, P < 0.05). Conclusions Isoprenaline‐induced TS‐like cardiac dysfunction can be prevented by lowering heart rate. Tachycardia may be an important part of the causal pathway in TS.
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Affiliation(s)
- Anwar Ali
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Björn Redfors
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Cardiology, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Joel Lundgren
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jessica Alkhoury
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jonatan Oras
- Department of Anesthesiology and Intensive Care Medicine, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Li-Ming Gan
- Department of Cardiology, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Early Clinical Development, Cardiovascular Renal and Metabolic Diseases, IMED Biotech Unit, AstraZeneca Gothenburg, Gothenburg, Sweden
| | - Elmir Omerovic
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Cardiology, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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26
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Affiliation(s)
- Xue-Rong Sun
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Tong Liu
- Department of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xing-Peng Liu
- Heart Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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27
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Liang X, Huang R, Huang J, Chen C, Qin F, Liu A, Tang X, Ning T, Nong H. Effect of an aqueous extract of Averrhoa carambola L. on endothelial function in rats with ventricular remodelling. Biomed Pharmacother 2020; 121:109612. [PMID: 31733577 DOI: 10.1016/j.biopha.2019.109612] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 10/25/2019] [Accepted: 10/26/2019] [Indexed: 11/27/2022] Open
Abstract
Ventricular remodelling leads to cardiomyocyte hypertrophy, myocardial fibrosis, endothelial vasoactive substance changes and endothelial dysfunction. Our purpose was to research the effect of an aqueous extract of Averrhoa carambola L. (AEA) on endothelial function in rats with ventricular remodelling induced by isoprenaline. Rats were subjected to injection of isoprenaline and administration of various drugs. Vasoactive substances were measured, and the ventricular remodelling index was detected by the weighing method. Immunohistochemical analysis, pathological examination, Western blot and Masson's trichrome staining were performed. After AEA administration, the levels of transforming growth factor-β (TGF-β), angiotensin II (AngII), inducible NO synthase (iNOS), endothelin-converting enzyme (ECE), and endothelin 1 (ET-1); the ventricular remodelling index; and the collagen volume fraction were decreased, while the levels of total NO synthase (tNOS) and endothelial NO synthase (eNOS) were increased. The pathological examination results showed that apoptosis, fibrosis, necrosis and inflammatory infiltration of myocardial tissue were attenuated by AEA treatment. AEA might alleviate ventricular remodelling in rats by maintaining the balance of vasoactive substances and the function of the vascular endothelium.
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Affiliation(s)
- Xingmei Liang
- Guangxi Medical College, Nanning 530023, Guangxi, P.R. China
| | - Renbin Huang
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, Guangxi, P.R. China
| | - Jianchun Huang
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, Guangxi, P.R. China
| | - Chunxia Chen
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, Guangxi, P.R. China
| | - Feizhang Qin
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, Guangxi, P.R. China
| | - Antao Liu
- Guangxi Medical College, Nanning 530023, Guangxi, P.R. China
| | - Xiaojun Tang
- Guangxi Medical College, Nanning 530023, Guangxi, P.R. China
| | - Tian Ning
- Guangxi Medical College, Nanning 530023, Guangxi, P.R. China
| | - Huiliang Nong
- PhaseI Clinical Center, The First People's Hospital of Nanning, Nanning 530022, Guangxi, P.R. China.
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28
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Zhang T, Dang M, Zhang W, Lin X. Gold nanoparticles synthesized from Euphorbia fischeriana root by green route method alleviates the isoprenaline hydrochloride induced myocardial infarction in rats. J Photochem Photobiol B 2019; 202:111705. [PMID: 31812087 DOI: 10.1016/j.jphotobiol.2019.111705] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/08/2019] [Accepted: 11/12/2019] [Indexed: 12/14/2022]
Abstract
The procurance of gold nanoparticles in the plant extracts is an excellent way to attain nanomaterials natural and eco-friendly nanomaterials. The Dehydrated roots of Chinese Euphorbia fischeriana flowering plant are called "Lang-Du". In this study, the retrieving of gold nanoparticles from Euphorbia fischeriana root was amalgamated by standard procedure. Fabricated gold nanoparticles were portrayed through the investigations of ultraviolet and visible spectrophotometry (UV-Vis), Fourier transform infrared spectroscopy (FTIR), High resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD). The UV-Vis and FTIR results explicated the obtained particles were sphere-shaped and the terpenoids of Euphorbia fischeriana had strong communications with gold surface. The HRTEM and XRD images exposed the produced gold nanoparticles had an extreme composition of crystal arrangement and excellent uniformed size of particles. In our study, the Isoprenaline induced myocardial damage established the elevation in TBARS, LOOH of heart tissues and notable decline in antioxidant enzymes SOD, CAT, GPx, and GSH. This biochemical result was additionally proved by histopathological assessment. Remarkably, the pretreatment with EF-AuNps(50 mg/kg b.w) illustrated stabilized levels of serum creatine and cardiotropins in myocardial infarcted animals. And further we understood the essential function of NF-ƙB, TNF-α, IL-6 signaling molecules and its way progression in the development of vascular tenderness.
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Affiliation(s)
- Tipeng Zhang
- Department of Cardiovascular Diseases, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan Province 450007, China
| | - Minyan Dang
- Innoscience Research SdnBhd, Jalan USJ 25/1, 47650 Subang Jaya, Selangor, Malaysia
| | - Wenzhi Zhang
- Innoscience Research SdnBhd, Jalan USJ 25/1, 47650 Subang Jaya, Selangor, Malaysia
| | - Xue Lin
- Emergency Department, Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027 China.
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29
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Yi C, Xing G, Wang S, Li X, Liu Y, Li J, Lin B, Woo AYH, Zhang Y, Pan L, Cheng M. Design, synthesis and biological evaluation of 8-(2-amino-1-hydroxyethyl)-6-hydroxy-1,4-benzoxazine-3(4H)-one derivatives as potent β 2-adrenoceptor agonists. Bioorg Med Chem 2019; 28:115178. [PMID: 31753798 DOI: 10.1016/j.bmc.2019.115178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/18/2019] [Accepted: 10/22/2019] [Indexed: 12/27/2022]
Abstract
A series of β2-adrenoceptor agonists with an 8-(2-amino-1-hydroxyethyl)-6-hydroxy-1,4-benzoxazine-3(4H)-one moiety is presented. The stimulatory effects of the compounds on human β2-adrenoceptor and β1-adrenoceptor were characterized by a cell-based assay. Their smooth muscle relaxant activities were tested on isolated guinea pig trachea. Most of the compounds were found to be potent and selective agonists of the β2-adrenoceptor. One of the compounds, (R)-18c, possessed a strong β2-adrenoceptor agonistic effect with an EC50 value of 24 pM. It produced a full and potent airway smooth muscle relaxant effect same as olodaterol. Its onset of action was 3.5 min and its duration of action was more than 12 h in an in vitro guinea pig trachea model of bronchodilation. These results suggest that (R)-18c is a potential candidate for long-acting β2-AR agonists.
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Affiliation(s)
- Ce Yi
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Gang Xing
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Siqi Wang
- Department of Pharmacology, School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xiaoran Li
- Department of Pharmacology, School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yichuang Liu
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Jinyan Li
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Bin Lin
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Anthony Yiu-Ho Woo
- Department of Pharmacology, School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yuyang Zhang
- Department of Pharmacology, School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Li Pan
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Maosheng Cheng
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Abstract
Heart failure-associated morbidity and mortality is largely attributable to extensive and unregulated cardiac remodelling. Roselle (Hibiscus sabdariffa) calyces are enriched with natural polyphenols known for antioxidant and anti-hypertensive effects, yet its effects on early cardiac remodelling in post myocardial infarction (MI) setting are still unclear. Thus, the aim of this study was to investigate the actions of roselle extract on cardiac remodelling in rat model of MI. Male Wistar rats (200-300 g) were randomly allotted into three groups: Control, MI, and MI + Roselle. MI was induced with isoprenaline (ISO) (85 mg/kg, s.c) for two consecutive days followed by roselle treatment (100 mg/kg, orally) for 7 days. Isoprenaline administration showed changes in heart weight to body weight (HW/BW) ratio. MI was especially evident by the elevated cardiac injury marker, troponin-T, and histological observation. Upregulation of plasma levels and cardiac gene expression levels of inflammatory cytokines such as interleukin (IL)-6 and IL-10 was seen in MI rats. A relatively high percentage of fibrosis was observed in rat heart tissues with over-expression of collagen (Col)-1 and Col-3 genes following isoprenaline-induced MI. On top of that, cardiomyocyte areas were larger in heart tissues of MI rats with upregulation of atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) gene expression, indicating cardiac hypertrophy. Interestingly, roselle supplementation attenuated elevation of plasma troponin-T, IL-6, IL10, and gene expression level of IL-10. Furthermore, reduction of cardiac fibrosis and hypertrophy were observed. In conclusion, roselle treatment was able to limit early cardiac remodelling in MI rat model by alleviating inflammation, fibrosis, and hypertrophy; hence, the potential application of roselle in early adjunctive treatment to prevent heart failure.
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MESH Headings
- Animals
- Atrial Natriuretic Factor/genetics
- Atrial Natriuretic Factor/metabolism
- Cardiovascular Agents/isolation & purification
- Cardiovascular Agents/pharmacology
- Collagen Type I/genetics
- Collagen Type I/metabolism
- Collagen Type III/genetics
- Collagen Type III/metabolism
- Disease Models, Animal
- Fibrosis
- Heart Ventricles/drug effects
- Heart Ventricles/metabolism
- Heart Ventricles/physiopathology
- Hibiscus/chemistry
- Hypertrophy, Left Ventricular/chemically induced
- Hypertrophy, Left Ventricular/metabolism
- Hypertrophy, Left Ventricular/physiopathology
- Hypertrophy, Left Ventricular/prevention & control
- Inflammation Mediators/blood
- Interleukin-10/blood
- Interleukin-10/genetics
- Interleukin-6/blood
- Interleukin-6/genetics
- Isoproterenol
- Male
- Myocardial Infarction/chemically induced
- Myocardial Infarction/drug therapy
- Myocardial Infarction/metabolism
- Myocardial Infarction/physiopathology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Natriuretic Peptide, Brain/genetics
- Natriuretic Peptide, Brain/metabolism
- Rats, Wistar
- Troponin T/blood
- Ventricular Function, Left/drug effects
- Ventricular Remodeling/drug effects
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Affiliation(s)
- Shafreena Shaukat Ali
- Biomedical Science, School of Diagnostic Sciences & Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Siti Fatimah Azaharah Mohamed
- Biomedical Science, School of Diagnostic Sciences & Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Nur Hafiqah Rozalei
- Biomedical Science, School of Diagnostic Sciences & Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Yap Wei Boon
- Biomedical Science, School of Diagnostic Sciences & Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Satirah Zainalabidin
- Biomedical Science, School of Diagnostic Sciences & Applied Health, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia.
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Acharya A, Brungs S, Lichterfeld Y, Hescheler J, Hemmersbach R, Boeuf H, Sachinidis A. Parabolic, Flight-Induced, Acute Hypergravity and Microgravity Effects on the Beating Rate of Human Cardiomyocytes. Cells 2019; 8:cells8040352. [PMID: 31013958 PMCID: PMC6523861 DOI: 10.3390/cells8040352] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/10/2019] [Accepted: 04/12/2019] [Indexed: 12/14/2022] Open
Abstract
Functional studies of human induced pluripotent stem cell (hiPSC)-derived cardiomyocytes (hCMs) under different gravity conditions contribute to aerospace medical research. To study the effects of altered gravity on hCMs, we exposed them to acute hypergravity and microgravity phases in the presence and absence of the β-adrenoceptor isoprenalin (ISO), L-type Ca2+ channel (LTCC) agonist Bay-K8644, or LTCC blocker nifedipine, and monitored their beating rate (BR). These logistically demanding experiments were executed during the 66th Parabolic Flight Campaign of the European Space Agency. The hCM cultures were exposed to 31 alternating hypergravity, microgravity, and hypergravity phases, each lasting 20–22 s. During the parabolic flight experiment, BR and cell viability were monitored using the xCELLigence real-time cell analyzer Cardio Instrument®. Corresponding experiments were performed on the ground (1 g), using an identical set-up. Our results showed that BR continuously increased during the parabolic flight, reaching a 40% maximal increase after 15 parabolas, compared with the pre-parabolic (1 g) phase. However, in the presence of the LTCC blocker nifedipine, no change in BR was observed, even after 31 parabolas. We surmise that the parabola-mediated increase in BR was induced by the LTCC blocker. Moreover, the increase in BR induced by ISO and Bay-K8644 during the pre-parabola phase was further elevated by 20% after 25 parabolas. This additional effect reflects the positive impact of the parabolas in the absence of both agonists. Our study suggests that acute alterations of gravity significantly increase the BR of hCMs via the LTCC.
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Affiliation(s)
- Aviseka Acharya
- Institute of Neurophysiology, Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany.
| | - Sonja Brungs
- German Aerospace Center, Institute of Aerospace Medicine, Gravitational Biology, Linder Hoehe, 51147 Cologne, Germany.
| | - Yannick Lichterfeld
- German Aerospace Center, Institute of Aerospace Medicine, Gravitational Biology, Linder Hoehe, 51147 Cologne, Germany.
| | - Jürgen Hescheler
- Institute of Neurophysiology, Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany.
| | - Ruth Hemmersbach
- German Aerospace Center, Institute of Aerospace Medicine, Gravitational Biology, Linder Hoehe, 51147 Cologne, Germany.
| | - Helene Boeuf
- INSERM (French National Institute of Health and Medical Research), U1026-Biotis, Université de Bordeaux, 33076 Bordeaux, France.
| | - Agapios Sachinidis
- Institute of Neurophysiology, Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany.
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Chen SJ, Yue J, Zhang JX, Jiang M, Hu TQ, Leng WD, Xiang L, Li XY, Zhang L, Zheng F, Yuan Y, Guo LY, Pan YM, Yan YW, Wang JN, Chen SY, Tang JM. Continuous exposure of isoprenaline inhibits myoblast differentiation and fusion through PKA/ERK1/2-FOXO1 signaling pathway. Stem Cell Res Ther 2019; 10:70. [PMID: 30819239 PMCID: PMC6394105 DOI: 10.1186/s13287-019-1160-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 01/25/2019] [Accepted: 01/30/2019] [Indexed: 01/08/2023] Open
Abstract
Aim The objective of this study is to determine if exuberant sympathetic nerve activity is involved in muscle satellite cell differentiation and myoblast fusion. Methods and results By using immunoassaying and western blot analyses, we found that β1 and β2-adrenergic receptors (AdR) were expressed in C2C12 cells. The differentiated satellite cells exhibited an increased expression of β2-AdR, as compared with the proliferating cells. Continuous exposure of isoprenaline (ISO), a β-AdR agonist, delayed C2C12 cell differentiation, and myoblast fusion in time- and dose-dependent manner. ISO also increased short myotube numbers while decreasing long myotube numbers, consistent with the greater reduction in MyHC1, MyHC2a, and MyHC2x expression. Moreover, continuous exposure of ISO gradually decreased the ratio of PKA RI/RII, and PKA RI activator efficiently reversed the ISO effect on C2C12 cell differentiation and myoblast fusion while PKA inhibitor H-89 deteriorated the effects. Continuous single-dose ISO increased β1-AdR expression in C2C12 cells. More importantly, the cells showed enhanced phospho-ERK1/2 levels, resulting in increasing phospho-β2-AdR levels while decreasing β2-AdR levels, and the specific effects could be abolished by ERK1/2 inhibitor. Furthermore, continuous exposure of ISO induced FOXO1 nuclear translocation and increased the levels of FOXO1 in nuclear extracts while reducing pAKT, p-p38MAPK, and pFOXO1 levels. Conversely, blockade of ERK1/2 signaling partially abrogated ISO effects on AKT, p38MAPK, and FOXO1signaling, which partially restored C2C12 cell differentiation and myoblast fusion, leading to an increase in the numbers of medium myotube along with the increased expression of MyHC1 and MyHC2a. Conclusion Continuous exposure of ISO impedes satellite cell differentiation and myoblast fusion, at least in part, through PKA-ERK1/2-FOXO1 signaling pathways, which were associated with the reduced β2-AdR and increased β1-AdR levels. Electronic supplementary material The online version of this article (10.1186/s13287-019-1160-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shao-Juan Chen
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China.,Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Jing Yue
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Jing-Xuan Zhang
- Department of Physiology, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China.,Institute of biomedicine and Key Lab of Human Embryonic Stem Cell of Hubei Province, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Miao Jiang
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Tu-Qiang Hu
- Department of Stomatology, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Wei-Dong Leng
- Department of Stomatology, Taihe Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Li Xiang
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China.,Department of Physiology, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Xin-Yuan Li
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Lei Zhang
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China.,Institute of biomedicine and Key Lab of Human Embryonic Stem Cell of Hubei Province, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Fei Zheng
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Ye Yuan
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Lin-Yun Guo
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China.,Institute of biomedicine and Key Lab of Human Embryonic Stem Cell of Hubei Province, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Ya-Mu Pan
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Yu-Wen Yan
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Jia-Ning Wang
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China.,Institute of biomedicine and Key Lab of Human Embryonic Stem Cell of Hubei Province, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China
| | - Shi-You Chen
- Department of Physiology & Pharmacology, The University of Georgia, Athens, GA30602, USA
| | - Jun-Ming Tang
- Department of Cardiology, and Institute of Clinical Medicine, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China. .,Department of Physiology, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China. .,Institute of biomedicine and Key Lab of Human Embryonic Stem Cell of Hubei Province, Hubei University of Medicine, Shiyan, 442000, Hubei, People's Republic of China.
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Sakr M, Hanafi R, Fouad M, Al-Easa H, El-Moghazy S. Design and optimization of a luminescent Samarium complex of isoprenaline: A chemometric approach based on Factorial design and Box-Behnken response surface methodology. Spectrochim Acta A Mol Biomol Spectrosc 2019; 208:114-123. [PMID: 30300861 DOI: 10.1016/j.saa.2018.09.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/15/2018] [Accepted: 09/30/2018] [Indexed: 06/08/2023]
Abstract
A chemometrically optimized procedure has been developed for the determination of isoprenaline (ISO) in the parent substance as well as in its respective pharmaceutical preparation. It is worth mentioning that although spectroscopic determination of Isoprenaline metal complexes has been described in literature, yet, no methods for the quantification of Isoprenaline with Samarium nor any other lanthanide metal have been reported. Fractional factorial design (FFD) was implemented in the initial screening procedure of the four designated factors, namely, reaction time (RT), metal volume (MV), pH and temperature (T) followed by Response Surface Methodology (RSM) optimization tool performed by the aid of Box Behnken design (BBD).The proposed techniques are based on a multivariate approach where a complexation reaction between Isoprenaline (ISO) and Samarium III (Sm3+) metal was exploited for the first time to synthesize novel fluorescence and absorbance probes of ISO-Sm. Maximum fluorescence intensity (Y1) as well as maximum absorbance (Y2) of the produced complex were attained at λex/λem = 315/450 and λ 295 nm for spectrofluorimetric and spectrophotometric determinations, respectively, against blank solutions. Using assessment quality tools such as, Pareto charts, normal probability plots and statistical analysis of variance testing (ANOVA), significant factors were successfully indicated (p < 0.05). Furthermore, the proposed methods verified specificity and accuracy for the determination of Isoprenaline in its pure and pharmaceutical preparation using spectrofluorimetric (Technique A) and spectrophotometric (Technique B) techniques, respectively. Linearity was obtained in the range of (0.02-0.50 μg/mL) and (2-12 μg/mL) upon employing both techniques A and B, respectively. Furthermore, limit of detection (LOD) and limit of quantification (LOQ), were found to be 5.1877 ∗ 10-3 μg/mL, 0.01572 μg/mL and 0.5593 μg/mL, 1.6949 μg/mL, upon employing techniques A and B, respectively. Standard addition method was applied for both techniques. The analysis was successfully applied to the assay of pure powder and pharmaceutical dosage forms after which the corresponding mean recoveries were computed and were found to be in the range of 99.546%-100.257% (Technique A) and 99.872%-99.887% (Technique B) with RSD (<1).
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Affiliation(s)
- Marwa Sakr
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha 2713, Qatar.
| | - Rasha Hanafi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Biotechnology, German University in Cairo, Egypt
| | - Marwa Fouad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Hala Al-Easa
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha 2713, Qatar
| | - Samir El-Moghazy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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Vishwakarma A, Singh TU, Rungsung S, Kumar T, Kandasamy A, Parida S, Lingaraju MC, Kumar A, Kumar A, Kumar D. Effect of Kaempferol Pretreatment on Myocardial Injury in Rats. Cardiovasc Toxicol 2018; 18:312-28. [PMID: 29353381 DOI: 10.1007/s12012-018-9443-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The present study was undertaken to evaluate the effect of kaempferol in isoprenaline (ISP)-induced myocardial injury in rats. ISP was administered subcutaneously for two subsequent days to induce myocardial injury. Assessment of myocardial injury was done by estimation of hemodynamic functions, myocardial infarcted area, cardiac injury markers, lipid profile, oxidative stress, pro-inflammatory cytokines and histopathology of heart and liver. Rats pretreated with kaempferol showed reduction in the myocardial infarcted area and heart rate. However, no improvement was observed in change in body weight, mean arterial, systolic and diastolic blood pressure. Kaempferol showed significant decrease in serum LDH, CK-MB, troponin-I and lipid profile. However, highest dose of kaempferol did not reduce the serum triglyceride level. Further, antioxidant enzymes, SOD and catalase, were also higher. However, reduced glutathione, serum SGOT and creatinine did not show any improvement. Kaempferol showed reduction in MDA level. Kaempferol at highest dose showed reduction in pro-MMP-2 expression and MMP-9 level. mRNA expression level of TNF-α was not different in kaempferol-pretreated myocardial injured rats with ISP-alone group. Pretreatment with kaempferol at highest dose showed mild mononuclear infiltration and degenerative changes in heart tissue section of myocardial injured rats. Rats pretreated with kaempferol at higher concentration showed normal cordlike arrangement of hepatocytes with moderate swelling of hepatocytes (vacuolar degeneration) around the central vein. Study suggests that kaempferol attenuated lipid profile, infarcted area and oxidative stress in ISP-induced myocardial injury in rats.
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Eladwy RA, Mantawy EM, El-Bakly WM, Fares M, Ramadan LA, Azab SS. Mechanistic insights to the cardioprotective effect of blueberry nutraceutical extract in isoprenaline-induced cardiac hypertrophy. Phytomedicine 2018; 51:84-93. [PMID: 30466632 DOI: 10.1016/j.phymed.2018.10.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 09/30/2018] [Accepted: 10/09/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Lowbush blueberry extract (Vaccinium angustifolium) is abundant with polyphenols (such as chlorogenic acid) with high antioxidant profile. It has received great interest due to its protective role in many disorders such as heart diseases and neurological disorders. HYPOTHESIS We hypothesized that blueberry leaf extract might have a protective effect against cardiac hypertrophy via suppressing oxidative stress, inflammation and fibrosis. METHOD Blueberry leaf nutraceutical extract was administered orally to male albino rats at three different doses (25, 50 and 100 mg/kg/day of the extract, equivalent to 3.4, 6.8 and 13.6 mg of chlorogenic acid, respectively) once daily for 28 consecutive days against a dose of isoprenaline (ISO) (5 mg/kg) for 14 days. RESULTS The results indicated that isoprenaline induced significant myocardial damage, characterized by conduction abnormalities, increased heart-to-body weight ratio, increased serum CKMB, AST, c-TnI and LDH. Pretreatment with blueberry extract at a dose of 50 mg/kg/day (equivalent to 6.8 mg chlorogenic acid) protected against ISO-induced ECG changes, leakage of cardiac enzymes and histopathological changes. Also, ISO caused significant glutathione depletion, lipid peroxidation and reduction in activities of antioxidant catalase enzyme. These effects were prevented by pretreatment with blueberry extract. Additionally, ISO elicited inflammatory effects by increasing the expression of NF-κB, COX-2, TNF-α and IL-6 while pretreatment with blueberry extract significantly inhibited these inflammatory responses. Furthermore, ISO induced fibrosis by increasing the level of TGF-β while pretreatment with blueberry extract significantly reduced it. CONCLUSION These findings indicate that blueberry leaf extract possessed a potent protective effect against ISO-induced cardiac hypertrophy via suppressing oxidative stress, inflammation and fibrosis.
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Affiliation(s)
- Radwa A Eladwy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo 11829, Egypt
| | - Eman M Mantawy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt
| | - Wesam M El-Bakly
- Department of Pharmacology and Therapeutics, Faculty of Medicine, Ain Shams University, Cairo 11566, Egypt
| | - Mohamed Fares
- School of Chemistry, University of Wollongong, Wollongong 2522, New South Wales, Australia
| | - Laila A Ramadan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Egyptian Russian University, Badr City, Cairo 11829, Egypt
| | - Samar S Azab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt.
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36
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Hasanzadeh-Moghadam M, Khadem-Ansari MH, Farjah GH, Rasmi Y. Hepatoprotective effects of betaine on liver damages followed by myocardial infarction. Vet Res Forum 2018; 9:129-135. [PMID: 30065801 PMCID: PMC6047573 DOI: 10.30466/vrf.2018.30834] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 02/21/2018] [Indexed: 12/20/2022]
Abstract
Myocardial infarction is commonly considered as a leading cause of cardiovascular disease taking the lives of seven million people annually. Liver dysfunction is associated with cardiac diseases. The profile of abnormal liver functions in heart failure is not clearly defined. This study was designed to investigate the protective effects of betaine on liver injury after myocardial infarction induced by isoprenaline in rats. Forty-eight male rats were divided into four groups: the control group received normal diet and the experimental groups received 50, 150, and 250 mg kg-1 body weight of betaine daily through gastric gavages for 60 days. All of experimental and control groups experienced myocardial infarction, induced by subcutaneous injection of 100 mg kg-1 isoprenaline in two consecutive doses )8:00 AM to 8:00 PM). Liver enzymes including aspartate transaminase (AST) and alanine transaminase (ALT) were significantly reduced in the groups treated with betaine, compared with the control group. The total antioxidant capacity in the experimental groups, treated with betaine, showed a significant increase, compared with the control group. In the control group, severe lesions were created in the liver tissue, while degenerative changes of liver tissue significantly reduced in groups treated with different doses of betaine, showing the repair of liver tissue. Betaine decreased apoptosis in the experimental groups in comparison with the control group. Betaine showed a protective effect against biochemical and histological changes in liver tissue caused by the induction of myocardial infarction via isoprenaline injection.
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Affiliation(s)
| | | | - Gholam Hossein Farjah
- Department of Anatomy, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran.,Neurophysiology Research Center, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Yousef Rasmi
- Department of Clinical Biochemistry, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
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Khezri S, Bahram M, Samadi N. Hydrogen bonding recognition and colorimetric detection of isoprenaline using 2-amino-5-mercapto-1,3,4-thiadiazol functionalized gold nanoparticles. Spectrochim Acta A Mol Biomol Spectrosc 2018; 189:522-527. [PMID: 28863401 DOI: 10.1016/j.saa.2017.06.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 05/29/2017] [Accepted: 06/30/2017] [Indexed: 06/07/2023]
Abstract
In this paper, we describe a rapid, low-cost and highly sensitive colorimetric method for the detection of isoprenaline, based on 2-amino-5-mercapto-1,3,4-thiadiazol (AMTD) functionalized gold nanoparticles (AMTD-AuNPs) as a sensing element. Hydrogen bonding interaction between isoprenaline and AMTD resulted in the aggregation of AuNPs and a consequent color change of AuNPs from red to blue. The concentration of isoprenaline could be detected with the naked eye or a UV-visible spectrometer. Results showed that the absorbance ratio (A650/A524) was linear with isoprenaline concentrations in the range of 0.2 to 2.6μM (R=0.997). The detection limit of this method was 0.08μM. The proposed method is simple, without using complicated instruments and adding salts for enhancing sensitivity. This probe could be successfully applied to the determination of isoprenaline in human serum samples and urine samples after deproteinization.
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Affiliation(s)
- Somayeh Khezri
- Department of analytical Chemistry, Faculty of chemistry, Urmia University, Iran
| | - Morteza Bahram
- Department of analytical Chemistry, Faculty of chemistry, Urmia University, Iran.
| | - Naser Samadi
- Department of analytical Chemistry, Faculty of chemistry, Urmia University, Iran
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Lu Y, Xu Q, Zuo Y, Liu L, Liu S, Chen L, Wang K, Lei Y, Zhao X, Li Y. Isoprenaline/β2-AR activates Plexin-A1/VEGFR2 signals via VEGF secretion in gastric cancer cells to promote tumor angiogenesis. BMC Cancer 2017; 17:875. [PMID: 29262812 PMCID: PMC5738852 DOI: 10.1186/s12885-017-3894-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 12/08/2017] [Indexed: 11/10/2022] Open
Abstract
Background The role of stress signals in regulating gastric cancer initiation and progression is not quite clear. It is known that stress signals modulate multiple processes such as immune function, cell migration and angiogenesis. However, few studies have investigated the mechanisms of how stress signals contribute to gastric cancer angiogenesis. Methods Here, we used β2-adrenergic receptor (β2-AR) agonist isoprenaline to imitate a stress signal and demonstrated the molecular mechanism underlying stress’s influence on tumor angiogenesis. Results We found that isoprenaline stimulated vascular endothelial growth factor (VEGF) secretion in gastric cancer cells and plexin-A1 expression was induced by human recombinant VEGF165 in both gastric cancer cells and vascular endothelial cells. Furthermore, interfere with plexin-A1 expression in gastric cancer cells influence HUVEC tube formation, migration and tumor growth in vivo. Conclusions These findings suggest that isoprenaline stimulate VGEF secretion and subsequently up-regulate the expression of plexin-A1 and VEGFR2 in gastric cancer cells, which form a positive impetus to promote tumor angiogenesis. This study reveals a novel molecular mechanism that a stress signal like isoprenaline may enhance angiogenesis via activating plexin-A1/VEGFR2 signaling pathway in gastric cancer, which may be a potential target in development of an anti-angiogenic therapy for gastric cancer.
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Affiliation(s)
- Yanjie Lu
- Department of Pathology; Cancer Research Laboratory, Chengde Medical College, Shangerdaohezi Avenue, Chengde, Hebei, 067000, People's Republic of China
| | - Qian Xu
- Institute of Basic Medical Sciences, Chengde Medical College, Chengde, 067000, People's Republic of China
| | - Yanzhen Zuo
- Department of Pharmacology, Chengde Medical College, Chengde, 067000, People's Republic of China
| | - Lei Liu
- Department of Pathogenic Microorganism, Chengde Medical College, Chengde, 067000, People's Republic of China
| | - Shaochen Liu
- Department of Pathology, Chengde Medical College, Chengde, 067000, People's Republic of China
| | - Lei Chen
- Department of General Surgery, the 266th Hospital of Chinese People's Liberation Army, Puning Avenue, Chengde, Hebei, 067000, People's Republic of China
| | - Kang Wang
- Department of Pathology, Chengde Medical College, Chengde, 067000, People's Republic of China
| | - Yuntao Lei
- Department of Pathology, Chengde Medical College, Chengde, 067000, People's Republic of China
| | - Xiangyang Zhao
- Department of General Surgery, the 266th Hospital of Chinese People's Liberation Army, Puning Avenue, Chengde, Hebei, 067000, People's Republic of China.
| | - Yuhong Li
- Department of Pathology; Cancer Research Laboratory, Chengde Medical College, Shangerdaohezi Avenue, Chengde, Hebei, 067000, People's Republic of China.
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Li C, Huang D, Tang J, Chen M, Lu Q, Li H, Zhang M, Xu B, Mao J. ClC-3 chloride channel is involved in isoprenaline-induced cardiac hypertrophy. Gene 2017; 642:335-342. [PMID: 29158167 DOI: 10.1016/j.gene.2017.11.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 10/26/2017] [Accepted: 11/15/2017] [Indexed: 01/01/2023]
Abstract
Isoprenaline, an activator of β-adrenergic receptor, has been found to induce cardiac hypertrophy in vivo and in vitro, but the exact mechanism is still unclear. ClC-3 is a member of the chloride channel family and is highly expressed in mammalian myocardium. In the present study, the role of ClC-3 in isopronaline-induced cardiac hypertrophy was investigated. We found that ClC-3 expression was reduced in isoprenaline-induced hypertrophic H9c2 cells, primary rat neonatal cardiomyocytes and myocardium of C57/BL/6 mice, and this reduction was prevented by the pretreatment of propranolol. Adeno-associated virus 9 (AAV9)-mediated ClC-3 expression in myocardium decreased heart mass index, thinned interventricular septum and left ventricular wall and lowered the mRNA expression of natriuretic peptide type A (ANF) and β-myosin heavy chain (β-MHC). Our results showed that ClC-3 played an important role in β-adrenergic cardiac hypertrophy which could be associated with ANF and β-MHC, and all these findings suggested that ClC-3 may be a novel therapeutic target for the prevention or treatment of myocardiac hypertrophy.
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Affiliation(s)
- Chunmei Li
- Department of Biochemistry and Molecular Biology, Guangdong Pharmaceutical University, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Dan Huang
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China; Hunan Traditional Chinese Medical College, Zhuzhou, 412012, China
| | - Jing Tang
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Mengqing Chen
- Department of Biochemistry and Molecular Biology, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Qun Lu
- Department of Biochemistry and Molecular Biology, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - He Li
- Department of Biochemistry and Molecular Biology, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | | | - Bin Xu
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates and School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Jianwen Mao
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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40
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Amoni M, Kelly-Laubscher R, Petersen M, Gwanyanya A. Cardioprotective and Anti-arrhythmic Effects of Magnesium Pretreatment Against Ischaemia/Reperfusion Injury in Isoprenaline-Induced Hypertrophic Rat Heart. Cardiovasc Toxicol 2017; 17:49-57. [PMID: 26696240 DOI: 10.1007/s12012-015-9355-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The effects of magnesium (Mg2+) on ischaemic complications of pathological cardiac hypertrophy are unclear. In this study, we investigated effects of Mg2+ pretreatment on ischaemia/reperfusion (I/R) injury in isoprenaline (ISO)-induced hypertrophic hearts. Wistar rats were treated for 7 days with different combinations of ISO (1.25 mg/kg) subcutaneously, MgSO4 (270 mg/kg) intraperitoneally, or vehicle (saline). On the eighth day, hearts were either subjected to regional I/R during Langendorff perfusion or histologically stained with haematoxylin and eosin and Masson's trichrome. Haemodynamic and electrocardiographic parameters were recorded using the PowerLab data-acquisition system. Infarcts were identified by triphenyltetrazolium chloride staining. Plasma Mg2+ was measured using photometric assays. Mg2+ pretreatment significantly decreased I/R-induced infarct size (p = 0.001) and the overall arrhythmia score (p < 0.001) of I/R-induced ventricular ectopics, ventricular tachycardia, and ventricular fibrillation in hypertrophic hearts, but not non-hypertrophied hearts. Mg2+ also improved post-I/R left ventricular developed pressure in hypertrophic hearts. However, Mg2+ did not reverse the ISO-induced myocyte thickening and interstitial fibrosis or increases in heart weight. Plasma Mg2+ was not different among treatment groups. These results suggest that Mg2+ pretreatment may protect against I/R-induced injury and malignant arrhythmias in hypertrophic hearts, possibly via mechanisms unrelated to long-lasting changes in plasma Mg2+ or prevention of structural changes such as fibrosis.
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Affiliation(s)
- Matthew Amoni
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa
| | - Roisin Kelly-Laubscher
- Department of Biological Sciences, Faculty of Science, University of Cape Town, Rondebosch, Cape Town, 7700, South Africa.,Academic Development Programme, Centre for Higher Education Development, University of Cape Town, Cape Town, South Africa
| | - Morea Petersen
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa
| | - Asfree Gwanyanya
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Observatory, Cape Town, 7925, South Africa.
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Abstract
History suggests β agonists, the cognate ligand of the β2 adrenoceptor, have been used as bronchodilators for around 5,000 years, and β agonists remain today the frontline treatment for asthma and chronic obstructive pulmonary disease (COPD). The β agonists used clinically today are the products of significant expenditure and over 100 year's intensive research aimed at minimizing side effects and enhancing therapeutic usefulness. The respiratory physician now has a therapeutic toolbox of long acting β agonists to prophylactically manage bronchoconstriction, and short acting β agonists to relieve acute exacerbations. Despite constituting the cornerstone of asthma and COPD therapy, these drugs are not perfect; significant safety issues have led to a black box warning advising that long acting β agonists should not be used alone in patients with asthma. In addition there are a significant proportion of patients whose asthma remains uncontrolled. In this chapter we discuss the evolution of β agonist use and how the understanding of β agonist actions on their principal target tissue, airway smooth muscle, has led to greater understanding of how these drugs can be further modified and improved in the future. Research into the genetics of the β2 adrenoceptor will also be discussed, as will the implications of individual DNA profiles on the clinical outcomes of β agonist use (pharmacogenetics). Finally we comment on what the future may hold for the use of β agonists in respiratory disease.
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Affiliation(s)
| | - Raymond B Penn
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Ian P Hall
- Division of Respiratory Medicine, University of Nottingham, Nottingham, NG7 2RD, UK.
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Hosseini A, Shafiee-Nick R, Sadeghian H, Parsaee H. Novel cilostamide analogs, phosphodiesterase 3 inhibitors, produce positive inotropic but differential lusitropic and chronotropic effects on isolated rat atria. Iran J Basic Med Sci 2017; 20:639-647. [PMID: 28868120 PMCID: PMC5569452 DOI: 10.22038/ijbms.2017.8831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Objective(s): Recently, we showed that some new synthetic compounds structurally related to cilostamide (4-(1,2-dihydro-2-oxoquinolin-6-hydroxy)- N-cyclohexyl-N-methylbutanamide), a selective phosphodiesterase 3 (PDE3) inhibitor, produce inotropic effect comparable to that of IBMX (3-isobutyl-1-methylxanthine), a non-selective PDE inhibitor, but with differential chronotropic effect. In this investigation, we compared the pharmacological effects of these compounds as potential cardiotonic agents using the spontaneously beating atria model. Materials and Methods: In each experiment, rats were treated with reserpine. The atrium was isolated and mounted in an organ bath. We assessed chronotropic and inotropic effects using cumulative log concentration-response curves of isoprenaline alone or in combination of each test-compound. Results: Majority of test compounds augment atria contraction force (ACF) significantly but with different potencies on atrium contraction rate. Cilostamide, MCPIP ([4-(4-methyl piperazin-1-yl)-4-oxobutoxy)-4-methylquinolin-2(1H)-one]), methyl carbostyril compounds- (mc1), mc2 and mc5 increased the isoprenaline effect on ACF synergistically. But, mc6 failed to potentiate the effect of isoprenalin; mc3 and mc4 did not increase ACF, which may be because of their higher hydrophilic nature. It was interesting that mc2, alone or in combination with isoprenaline, produced the highest inotropic effect while it did not affect the basal contraction rate and almost blocked the isoprenaline chronotropic effect. Conclusion: Combination of mc2 with isoprenaline had synergistic effect on inotropic effect, but this combination reduced isoprenaline chronotropic effect; therefore, these effects cannot be related to reducing B-adrenergic receptors activity. These compounds showed different effects; probably all of them were not mediated via PDE3 inhibition and other mechanisms are involving.
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Affiliation(s)
- Azar Hosseini
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Shafiee-Nick
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Sadeghian
- Department of Laboratory Sciences, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Heydar Parsaee
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmacology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Abstract
The objective of this study was to examine the effect of autophagy on stress-induced M2 macrophage polarization in the tumor microenvironment of breast cancer and to determine whether the underlying mechanism was related to the reactive oxygen species (ROS)/ERK and mTOR pathway. In vitro, we found that the basal autophagy level in mouse RAW 264.7 macrophages decreased with the incubation of tumor cell culture supernatant. Similarly, the polarization of RAW 264.7 to M2 macrophages was inhibited by the autophagy inducer rapamycin and increased by the autophagy inhibitor 3-MA or by siBeclin1. In addition, we found that not only was M2 molecule expression down-regulated but intracellular ROS generation was also blocked by autophagy induction. In vivo, we observed that mice that received an isoprenaline injection as a stress agent exhibited augmented implanted breast tumor growth, lung metastasis, intratumoral mRNA expression of M2 molecules and serum ROS generation. In contrast, the intratumoral expression of LC3-II and Beclin1 was decreased. In addition, we observed that isoprenaline induced the up-regulation of the intratumoral expression of phosphorylated mTOR, phosphorylated ERK1/2, phosphorylated Tyr705-STAT3 and HIF-1α, whereas rapamycin induced an opposite effect on the same molecules and could abolish the effects of isoprenaline. These results suggest that autophagy might suppress M2 macrophage polarization induced by isoprenaline via the ROS/ERK and mTOR signaling pathway. Our findings provide a theoretical basis for why high levels of stress hormones accelerate the progression of breast cancer, and autophagy may play a role in determining the outcomes of cancer therapy.
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MESH Headings
- Adenine/analogs & derivatives
- Adenine/pharmacology
- Animals
- Antibiotics, Antineoplastic/pharmacology
- Autophagy/drug effects
- Autophagy/genetics
- Cell Line, Tumor
- Epithelial Cells/drug effects
- Epithelial Cells/metabolism
- Epithelial Cells/pathology
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Hypoxia-Inducible Factor 1, alpha Subunit/genetics
- Hypoxia-Inducible Factor 1, alpha Subunit/metabolism
- Isoproterenol/antagonists & inhibitors
- Isoproterenol/pharmacology
- Lung Neoplasms/drug therapy
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/secondary
- MAP Kinase Signaling System
- Mammary Neoplasms, Experimental/drug therapy
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/metabolism
- Mammary Neoplasms, Experimental/pathology
- Mice
- Mice, Inbred BALB C
- Microtubule-Associated Proteins/genetics
- Microtubule-Associated Proteins/metabolism
- RAW 264.7 Cells
- Reactive Oxygen Species/antagonists & inhibitors
- Reactive Oxygen Species/metabolism
- STAT3 Transcription Factor/genetics
- STAT3 Transcription Factor/metabolism
- Sirolimus/pharmacology
- TOR Serine-Threonine Kinases/genetics
- TOR Serine-Threonine Kinases/metabolism
- Tumor Microenvironment/drug effects
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Affiliation(s)
- Meihua Shan
- Medical School of Nankai University, Nankai University, Tianjin, China; Hebei Normal University for Nationalities, Chengde, China
| | - Junfang Qin
- Medical School of Nankai University, Nankai University, Tianjin, China
| | - Fengjiao Jin
- Medical School of Nankai University, Nankai University, Tianjin, China
| | - Xiao Han
- Medical School of Nankai University, Nankai University, Tianjin, China
| | - Haitao Guan
- Medical School of Nankai University, Nankai University, Tianjin, China
| | - Xiaoge Li
- Medical School of Nankai University, Nankai University, Tianjin, China
| | - Jiahui Zhang
- Medical School of Nankai University, Nankai University, Tianjin, China
| | - Hongyao Zhang
- Medical School of Nankai University, Nankai University, Tianjin, China
| | - Yue Wang
- Medical School of Nankai University, Nankai University, Tianjin, China.
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Hothersall JD, Torella R, Humphreys S, Hooley M, Brown A, McMurray G, Nickolls SA. Residues W320 and Y328 within the binding site of the μ-opioid receptor influence opiate ligand bias. Neuropharmacology 2017; 118:46-58. [PMID: 28283391 DOI: 10.1016/j.neuropharm.2017.03.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 03/01/2017] [Accepted: 03/06/2017] [Indexed: 11/28/2022]
Abstract
The development of G protein-biased agonists for the μ-opioid receptor (MOR) offers a clear drug discovery rationale for improved analgesia and reduced side-effects of opiate pharmacotherapy. However, our understanding of the molecular mechanisms governing ligand bias is limited, which hinders our ability to rationally design biased compounds. We have investigated the role of MOR binding site residues W320 and Y328 in controlling bias, by receptor mutagenesis. The pharmacology of a panel of ligands in a cAMP and a β-arrestin2 assay were compared between the wildtype and mutated receptors, with bias factors calculated by operational analysis using ΔΔlog(τ/KA) values. [3H]diprenorphine competition binding was used to estimate affinity changes. Introducing the mutations W320A and Y328F caused changes in pathway bias, with different patterns of change between ligands. For example, DAMGO increased relative β-arrestin2 activity at the W320A mutant, whilst its β-arrestin2 response was completely lost at Y328F. In contrast, endomorphin-1 gained activity with Y328F but lost activity at W320A, in both pathways. For endomorphin-2 there was a directional shift from cAMP bias at the wildtype towards more β-arrestin2 bias at W320A. We also observe clear uncoupling between mutation-driven changes in function and binding affinity. These findings suggest that the mutations influenced the balance of pathway activation in a ligand-specific manner, thus identifying residues in the MOR binding pocket that govern ligand bias. This increases our understanding of how ligand/receptor binding interactions can be translated into agonist-specific pathway activation.
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Affiliation(s)
- J Daniel Hothersall
- Pfizer, Neuroscience and Pain Research Unit UK, The Portway Building, Granta Park, Cambridge, CB21 6GS, United Kingdom; Heptares Therapeutics, BioPark, Broadwater Road, Welwyn Garden City, Hertfordshire, AL7 3AX, United Kingdom.
| | - Rubben Torella
- Pfizer, Neuroscience and Pain Research Unit UK, The Portway Building, Granta Park, Cambridge, CB21 6GS, United Kingdom
| | - Sian Humphreys
- Pfizer, Neuroscience and Pain Research Unit UK, The Portway Building, Granta Park, Cambridge, CB21 6GS, United Kingdom
| | - Monique Hooley
- Pfizer, Neuroscience and Pain Research Unit UK, The Portway Building, Granta Park, Cambridge, CB21 6GS, United Kingdom
| | - Alastair Brown
- Heptares Therapeutics, BioPark, Broadwater Road, Welwyn Garden City, Hertfordshire, AL7 3AX, United Kingdom
| | - Gordon McMurray
- Pfizer, Neuroscience and Pain Research Unit UK, The Portway Building, Granta Park, Cambridge, CB21 6GS, United Kingdom
| | - Sarah A Nickolls
- Pfizer, Neuroscience and Pain Research Unit UK, The Portway Building, Granta Park, Cambridge, CB21 6GS, United Kingdom
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Wang D, Shan Y, Huang Y, Tang Y, Chen Y, Li R, Yang J, Huang C. Vasostatin-1 Stops Structural Remodeling and Improves Calcium Handling via the eNOS-NO-PKG Pathway in Rat Hearts Subjected to Chronic β-Adrenergic Receptor Activation. Cardiovasc Drugs Ther 2016; 30:455-64. [PMID: 27595734 DOI: 10.1007/s10557-016-6687-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE Chronically elevated catecholamine levels activate cardiac β-adrenergic receptors, which play a vital role in the pathogenesis of heart failure. Evidence suggests that vasostatin-1 (VS-1) exerts anti-adrenergic effects on isolated and perfused hearts in vitro. Whether VS-1 ameliorates hypertrophy/remodeling by inducing the chronic activation of β-adrenergic receptors is unknown. The present study aims to test the efficacy of using VS-1 to treat the advanced hypertrophy/remodeling that result from chronic β-adrenergic receptor activation and to determine the cellular and molecular mechanisms that underlie this response. METHODS AND RESULT Rats were subjected to infusion with either isoprenaline (ISO, 5 mg/kg/d), ISO plus VS-1 (30 mg/kg/d) or placebo for 2 weeks. VS-1 suppressed chamber dilation, myocyte hypertrophy and fibrosis and improved in vivo heart function in the rats subjected to ISO infusion. VS-1 increased phosphorylated nitric oxide synthase levels and induced the activation of protein kinase G. VS-1 also deactivated multiple hypertrophy signaling pathways that were triggered by the chronic activation of β-adrenergic receptors, such as the phosphoinositide-3 kinase (PI3K)/Akt and Ca2+/calmodulin-dependent kinase (CaMK-II) pathways. Myocytes isolated from ISO + VS-1 hearts displayed higher Ca2+ transients, shorter Ca2+ decays, higher sarcoplasmic reticulum Ca2+ levels and higher L-type Ca2+ current densities than the ISO rat hearts. VS-1 treatment restored the protein expression of sarcoplasmic reticulum Ca2+ uptake ATPase, phospholamban and Cav1.2, indicating improved calcium handling. CONCLUSIONS Chronic VS-1 treatment inhibited the progression of hypertrophy, fibrosis, and chamber remodeling, and improved cardiac function in a rat model of ISO infusion. In addition, Ca2+ handling and its molecular modulation were also improved by VS-1. The beneficial effects of VS-1 on cardiac remodeling may be mediated by the enhanced activation of the eNOS-cGMP-PKG pathway.
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Wang J, Tang M, Jiang H, Wu B, Cai W, Hu C, Bao R, Dong Q, Xiao L, Li G, Zhang C. The role of adrenergic activation on murine luteal cell viability and progesterone production. Theriogenology 2016; 86:1182-8. [PMID: 27173955 DOI: 10.1016/j.theriogenology.2016.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 01/29/2016] [Accepted: 04/05/2016] [Indexed: 12/17/2022]
Abstract
Sympathetic innervations exist in mammalian CL. The action of catecholaminergic system on luteal cells has been the focus of a variety of studies. Norepinephrine (NE) increased progesterone secretion of cattle luteal cells by activating β-adrenoceptors. In this study, murine luteal cells were treated with NE and isoprenaline (ISO). We found that NE increased the viability of murine luteal cells and ISO decreased the viability of luteal cells. Both NE and ISO promoted the progesterone production. Nonselective β-adrenergic antagonist, propranolol reversed the effect of ISO on cell viability but did not reverse the effect of NE on cell viability. Propranolol blocked the influence of NE and ISO on progesterone production. These results reveal that the increase of luteal cell viability induced by NE is not dependent on β-adrenergic activation. α-Adrenergic activation possibly contributes to it. Both NE and ISO increased progesterone production through activating β-adrenergic receptor. Further study showed that CyclinD2 is involved in the increase of luteal cell induced by NE. 3β-Hydroxysteroid dehydrogenase, LHR, steroidogenic acute regulatory protein (StAR), and PGF2α contribute to the progesterone production induced by NE and ISO.
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Affiliation(s)
- Jing Wang
- Department of Microbiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Min Tang
- Department of Cell Biology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Huaide Jiang
- Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Bing Wu
- Department of Physiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Wei Cai
- Department of Cell Biology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Chuan Hu
- Department of Cell Biology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Riqiang Bao
- Joint programme of Nanchang University and Queen Mary University of London, London, UK
| | - Qiming Dong
- Joint programme of Nanchang University and Queen Mary University of London, London, UK
| | - Li Xiao
- Department of Cell Biology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Gang Li
- Department of Cell Biology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China
| | - Chunping Zhang
- Department of Cell Biology, School of Medicine, Nanchang University, Nanchang, Jiangxi, China.
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47
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Filipský T, Říha M, Hašková P, Pilařová V, Nováková L, Semecký V, Vávrová J, Holečková M, Palicka V, Šimůnek T, Hrdina R, Mladěnka P. Intravenous rutin in rat exacerbates isoprenaline-induced cardiotoxicity likely due to intracellular oxidative stress. Redox Rep 2016; 22:78-90. [PMID: 27077454 DOI: 10.1080/13510002.2016.1159817] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
OBJECTIVES Rutin, quercetin-3-O-rutinoside, a natural flavonol glycoside, has shown various in vitro benefits with potential use treating human diseases, especially cardiovascular system disorders. Antioxidant properties are assumed to underlie the majority of these benefits. Yet rutin pro-oxidant properties have been reported as well. Our research group has recently shown aggravating effects on isoprenaline (ISO)-induced cardiotoxicity in Wistar:Han rats after 24 hours. METHODS This study was designed to examine in more detail the reasons for the negative effects of rutin (11.5 and 46 mg/kg, i.v.) after administration of ISO (100 mg/kg, s.c.) in rats within 2 hours of continuous experiment and in the H9c2 cardiomyoblast-derived cell line. RESULTS Like our previous findings, rutin did not (11.5 or 46 mg/kg, i.v.) reduce the ISO-induced mortality within 2 hours although the lower dose significantly reduced cardiac troponin T (cTnT) and partly improved the histological findings. In contrast, the higher dose increased the mortality in comparison with solvent (1.26% w/v sodium bicarbonate). This was not caused by any specific haemodynamic disturbances. It appears to be associated with oxidative stress as rutin enhanced intracellular reactive oxygen species formation in vitro and had the tendency to increase it in vivo. CONCLUSIONS Rutin, likely due to its pro-oxidative effects, can exacerbate catecholamine cardiotoxicity depending on the dose used.
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Affiliation(s)
- Tomáš Filipský
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Michal Říha
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Pavlína Hašková
- b Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Veronika Pilařová
- c Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Lucie Nováková
- c Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Vladimír Semecký
- d Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Jaroslava Vávrová
- e Faculty of Medicine in Hradec Králové , Charles University in Prague , Šimkova 870, 500 38 Czech Republic.,f University Hospital Hradec Králové , Sokolská 581, 500 05 Czech Republic
| | - Magdaléna Holečková
- e Faculty of Medicine in Hradec Králové , Charles University in Prague , Šimkova 870, 500 38 Czech Republic.,f University Hospital Hradec Králové , Sokolská 581, 500 05 Czech Republic
| | - Vladimir Palicka
- e Faculty of Medicine in Hradec Králové , Charles University in Prague , Šimkova 870, 500 38 Czech Republic.,f University Hospital Hradec Králové , Sokolská 581, 500 05 Czech Republic
| | - Tomáš Šimůnek
- b Department of Biochemical Sciences, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Radomír Hrdina
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
| | - Přemysl Mladěnka
- a Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Králové , Charles University in Prague , Heyrovského 1203, 500 05 Czech Republic
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Puhl SL, Weeks KL, Ranieri A, Avkiran M. Assessing structural and functional responses of murine hearts to acute and sustained β-adrenergic stimulation in vivo. J Pharmacol Toxicol Methods 2016; 79:60-71. [PMID: 26836145 PMCID: PMC4840275 DOI: 10.1016/j.vascn.2016.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 01/28/2016] [Accepted: 01/29/2016] [Indexed: 11/18/2022]
Abstract
Introduction Given the importance of β-adrenoceptor signalling in regulating cardiac structure and function, robust protocols are required to assess potential alterations in such regulation in murine models in vivo. Methods Echocardiography was performed in naïve and stressed (isoprenaline; 30 μg/g/day s.c. for up to 14 days) mice, in the absence or presence of acute β-adrenergic stimulation (dobutamine 0.75 μg/g, i.p.). Controls received saline infusion and/or injection. Hearts were additionally analysed gravimetrically, histologically and biochemically. Results In naïve mice, acute β-adrenoceptor stimulation with dobutamine increased heart rate, left ventricular (LV) fractional shortening (LVFS), ejection fraction (LVEF) and wall thickness and decreased LV diameter (p < 0.05). In stressed mice, dobutamine failed to induce further inotropic and chronotropic responses. Furthermore, following dobutamine injection, these mice exhibited lower LVEF and LVFS at identical heart rates, relative to corresponding controls. Sustained isoprenaline infusion induced LV hypertrophy (increased heart weight, heart weight/body weight ratio, heart weight/tibia length ratio and LV wall thickness (p < 0.05)) by 3 days, with little further change at 14 days. In contrast, increases in LVEF and LVFS were seen only at 14 days (p < 0.05). Discussion We describe protocols for and illustrative data from the assessment of murine cardiac responses to acute and sustained β-adrenergic stimulation in vivo, which would be of value in determining the impact of genetic or pharmacological interventions on such responses. Additionally, our data indicate that acute dobutamine stimulation unmasks early signs of LV dysfunction in the remodelled heart, even at a stage when basal function is enhanced.
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Affiliation(s)
- Sarah-Lena Puhl
- Cardiovascular Division, King's College London British Heart Foundation Centre of Research Excellence, The Rayne Institute, St Thomas' Hospital, London SE1 7EH, United Kingdom.
| | - Kate L Weeks
- Cardiovascular Division, King's College London British Heart Foundation Centre of Research Excellence, The Rayne Institute, St Thomas' Hospital, London SE1 7EH, United Kingdom.
| | - Antonella Ranieri
- Cardiovascular Division, King's College London British Heart Foundation Centre of Research Excellence, The Rayne Institute, St Thomas' Hospital, London SE1 7EH, United Kingdom.
| | - Metin Avkiran
- Cardiovascular Division, King's College London British Heart Foundation Centre of Research Excellence, The Rayne Institute, St Thomas' Hospital, London SE1 7EH, United Kingdom.
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Kharadi GB, Patel KJ, Purohit BM, Baxi SN, Tripathi CB. Evaluation of cardioprotective effect of aqueous extract of Allium cepa Linn. bulb on isoprenaline-induced myocardial injury in Wistar albino rats. Res Pharm Sci 2016; 11:419-427. [PMID: 27920825 PMCID: PMC5122832 DOI: 10.4103/1735-5362.192494] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
To investigate the cardioprotective potential of the aqueous extract of Allium cepa Linn. bulb in isoprenaline-induced myocardial injury in Wistar albino rats. In vitro total phenolic, total flavonoid content and 2, 2’-diphenyl-1-picrylhydrazyl hydrate radical scavenging activity was measured. Isoprenaline-induced myocardial injury model was used to evaluate in vivo effect of aqueous extract of A. cepa in Wistar albino rats. Seventy two rats were randomly divided in 6 groups. Rats were treated with A. cepa 400 mg/kg and 800 mg/kg doses for 30 days and myocardial injury was produced by subcutaneous injection of isoprenaline (ISO) 85 mg/kg on day 28 and 29. Carvedilol 1 mg/kg for 30 days served as active control. Electrocardiogram parameters, cardiac injury markers, oxidative stress markers and histopathological changes were evaluated in each group and compared using appropriate statistical tests. In vitro evaluation of aqueous extract of A. cepa showed significant antioxidant property. ISO produced significant myocardial injury as compared to normal control group (P < 0.05). Administration of A. cepa in the dose of 400 mg/kg significantly recovered the altered parameters (Troponin-I, Creatine kinase-MB, glutamate-pyruvate transaminase, HR, R-R interval, and oxidative stress markers) compared to disease control group (P < 0.05) while A. cepa in the dose 800 mg/kg recovered the altered parameters (HR, heart weight/body weight ratio, and superoxide dismutase level) compared to disease control group. Histopathological parameters did not recover in the doses of 400 and 800 mg/kg (P > 0.05). The aqueous extract of A. cepa 400 mg/kg was found to be cardioprotective against myocardial injury while A. cepa 800 mg/kg did not show significant cardioprotective activity. So, we presume that A. cepa might be effective within certain dose range only.
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Affiliation(s)
- Geeta B Kharadi
- Department of Pharmacology, Government Medical College, Bhavnagar-364001, Gujarat, India
| | - Kaksha J Patel
- Department of Pharmacology, Government Medical College, Bhavnagar-364001, Gujarat, India
| | - Bhargav M Purohit
- Department of Pharmacology, Government Medical College, Bhavnagar-364001, Gujarat, India
| | - Seema N Baxi
- Department of Pathology, Government Medical College, Bhavnagar-364001, Gujarat, India
| | - C B Tripathi
- Department of Pharmacology, Government Medical College, Bhavnagar-364001, Gujarat, India
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Patel KJ, Panchasara AK, Barvaliya MJ, Purohit BM, Baxi SN, Vadgama VK, Tripathi CB. Evaluation of cardioprotective effect of aqueous extract of Garcinia indica Linn. fruit rinds on isoprenaline-induced myocardial injury in Wistar albino rats. Res Pharm Sci 2015; 10:388-96. [PMID: 26752987 PMCID: PMC4691959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
In the present study, cardioprotective effect of aqueous extract of Garcinia indica Linn. fruit rinds in isoprenaline-induced myocardial infarction in Wistar albino rats was evaluated. In vitro total phenolic, total flavonoid content and 2, 2'-diphenyl-1-picrylhydrazyl hydrate radical scavenging activity was measured. In vivo effect of aqueous extract of G. indica was evaluated in Wistar albino rats by isoprenaline-induced myocardial injury model. Thirty six rats were randomly divided in 6 groups. Rats were treated with G. indica 250 mg/kg and 500 mg/kg doses for 21 days and myocardial injury was produced by subcutaneous injection of isoprenaline 85 mg/kg on day 20 and 21. Carvedilol 1 mg/kg for 21 days served as active control. Electrocardiogram parameters, cardiac injury markers (serum troponin-I, uric acid, lactate dehydrogenase, creatinine kinase-MB, aspartate aminotransferase and alanine aminotransferase), oxidative stress markers (superoxide dismutase, catalase and malondialdehyde level) and histopathological changes were evaluated in each group and compared using appropriate statistical tests. In vitro evaluation of aqueous extract showed significant antioxidant property. Isoprenaline produced significant myocardial ischemia as compared to normal control group (P<0.05). Administration of G. indica in both the doses did not significantly recover the altered electrocardiogram, cardiac injury markers, oxidative stress markers and histopathological myocardial damage as compared to disease control group (P>0.05). The aqueous extract of G. indica was not found to be cardioprotective against myocardial injury. Further study with more sample size and higher dose range may be required to evaluate its cardioprotective effect.
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Affiliation(s)
- Kaksha J. Patel
- Department of Pharmacology, Government Medical College, Bhavnagar-364001, Gujarat, India
| | - Ashwin K. Panchasara
- Department of Pharmacology, Government Medical College, Bhavnagar-364001, Gujarat, India
| | - Manish J. Barvaliya
- Department of Pharmacology, Government Medical College, Bhavnagar-364001, Gujarat, India
| | - Bhargav M. Purohit
- Department of Pharmacology, Government Medical College, Bhavnagar-364001, Gujarat, India,Corresponding author: B.M. Purohit Tel: 0091 9725024978, Fax: 0091 2782422011
| | - Seema N. Baxi
- Department of Pathology, Government Medical College, Bhavnagar-364001, Gujarat, India
| | - Vishal K. Vadgama
- Department of Pharmacology, Government Medical College, Bhavnagar-364001, Gujarat, India
| | - C. B. Tripathi
- Department of Pharmacology, Government Medical College, Bhavnagar-364001, Gujarat, India
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