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Du J, Yu D, Li J, Si L, Zhu D, Li B, Gao Y, Sun L, Wang X, Wang X. Asiatic acid protects against pressure overload-induced heart failure in mice by inhibiting mitochondria-dependent apoptosis. Free Radic Biol Med 2023; 208:545-554. [PMID: 37717794 DOI: 10.1016/j.freeradbiomed.2023.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/12/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
BACKGROUND Mitochondrial dysfunction and subsequent cardiomyocyte apoptosis significantly contribute to pressure overload-induced heart failure (HF). A highly oxidative environment leads to mitochondrial damage, further exacerbating this condition. Asiatic acid (AA), a proven antioxidant and anti-hypertrophic agent, might provide a solution, but its role and mechanisms in chronic pressure overload-induced HF remain largely unexplored. METHODS We induced pressure overload in mice using transverse aortic constriction (TAC) and treated them with AA (100 mg/kg/day) or vehicle daily by oral gavage for 8 weeks. The effects of AA on mitochondrial dysfunction, oxidative stress-associated signaling pathways, and overall survival were evaluated. Additionally, an in vitro model using hydrogen peroxide-exposed neonatal rat cardiomyocytes was established to further investigate the role of AA in oxidative stress-induced mitochondrial apoptosis. RESULTS AA treatment significantly improved survival and alleviated cardiac dysfunction in TAC-induced HF mice. It preserved mitochondrial structure, reduced the LVW/BW ratio by 20.24%, mitigated TAC-induced mitochondrial-dependent apoptosis by significantly lowering the Bax/Bcl-2 ratio and cleaved caspase-9/3 levels, and attenuated oxidative stress. AA treatment protected cardiomyocytes from hydrogen peroxide-induced apoptosis, with concurrent modulation of mitochondrial-dependent apoptosis pathway-related proteins and the JNK pathway. CONCLUSIONS Our findings suggest that AA effectively combats chronic TAC-induced and hydrogen peroxide-induced cardiomyocyte apoptosis through a mitochondria-dependent mechanism. AA reduces cellular levels of oxidative stress and inhibits the activation of the JNK pathway, highlighting its potential therapeutic value in the treatment of HF.
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Affiliation(s)
- Junjie Du
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Dongmin Yu
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Jinghang Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Linjie Si
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Dawei Zhu
- Department of Cardiothoracic Surgery, Sir Run Run Hospital, Nanjing Medical University, Nanjing, 211000, China
| | - Ben Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Yizhou Gao
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Lifu Sun
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Xufeng Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Xiaowei Wang
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
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da Silva MC, dos Santos VM, da Silva MVB, Prazeres TCMM, Cartágenes MDSS, Calzerra NTM, de Queiroz TM. Involvement of shedding induced by ADAM17 on the nitric oxide pathway in hypertension. Front Mol Biosci 2022; 9:1032177. [PMID: 36310604 PMCID: PMC9614329 DOI: 10.3389/fmolb.2022.1032177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/04/2022] [Indexed: 11/15/2022] Open
Abstract
A Disintegrin and Metalloprotease 17 (ADAM17), also called tumor necrosis factor-ɑ (TNF-ɑ) convertase (TACE), is a well-known protease involved in the sheddase of growth factors, chemokines and cytokines. ADAM17 is also enrolled in hypertension, especially by shedding of angiotensin converting enzyme type 2 (ACE2) leading to impairment of angiotensin 1–7 [Ang-(1–7)] production and injury in vasodilation, induction of renal damage and cardiac hypertrophy. Activation of Mas receptor (MasR) by binding of Ang-(1–7) induces an increase in the nitric oxide (NO) gaseous molecule, which is an essential factor of vascular homeostasis and blood pressure control. On the other hand, TNF-ɑ has demonstrated to stimulate a decrease in nitric oxide bioavailability, triggering a disrupt in endothelium-dependent vasorelaxation. In spite of the previous studies, little knowledge is available about the involvement of the metalloprotease 17 and the NO pathways. Here we will provide an overview of the role of ADAM17 and Its mechanisms implicated with the NO formation.
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Affiliation(s)
- Mirelly Cunha da Silva
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão, Brazil
| | - Vanessa Maria dos Santos
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão, Brazil
| | - Matheus Vinícius B. da Silva
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão, Brazil
| | | | | | | | - Thyago Moreira de Queiroz
- Laboratory of Nutrition, Physical Activity and Phenotypic Plasticity, Federal University of Pernambuco, Vitória de Santo Antão, Brazil
- *Correspondence: Thyago Moreira de Queiroz,
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Iqbal H, Yadav P, Verma AK, Mishra D, Vamadevan B, Singh D, Luqman S, Negi AS, Chanda D. Anti-inflammatory, anti-oxidant and cardio-protective properties of novel fluorophenyl benzimidazole in L-NAME-induced hypertensive rats. Eur J Pharmacol 2022; 929:175132. [DOI: 10.1016/j.ejphar.2022.175132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/14/2022] [Accepted: 06/29/2022] [Indexed: 12/17/2022]
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Wu X, Yao J, Hu Q, Kang H, Miao Y, Zhu L, Li C, Zhao X, Li J, Wan M, Tang W. Emodin Ameliorates Acute Pancreatitis-Associated Lung Injury Through Inhibiting the Alveolar Macrophages Pyroptosis. Front Pharmacol 2022; 13:873053. [PMID: 35721108 PMCID: PMC9201345 DOI: 10.3389/fphar.2022.873053] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/13/2022] [Indexed: 02/05/2023] Open
Abstract
Objective: To investigate the protective effect of emodin in acute pancreatitis (AP)-associated lung injury and the underlying mechanisms. Methods: NaT-AP model in rats was constructed using 3.5% sodium taurocholate, and CER+LPS-AP model in mice was constructed using caerulein combined with Lipopolysaccharide. Animals were divided randomly into four groups: sham, AP, Ac-YVAD-CMK (caspase-1 specific inhibitor, AYC), and emodin groups. AP-associated lung injury was assessed with H&E staining, inflammatory cytokine levels, and myeloperoxidase activity. Alveolar macrophages (AMs) pyroptosis was evaluated by flow cytometry. In bronchoalveolar lavage fluid, the levels of lactate dehydrogenase and inflammatory cytokines were measured by enzyme-linked immunosorbent assay. Pyroptosis-related protein expressions were detected by Western Blot. Results: Emodin, similar to the positive control AYC, significantly alleviated pancreas and lung damage in rats and mice. Additionally, emodin mitigated the pyroptotic process of AMs by decreasing the level of inflammatory cytokines and lactate dehydrogenase. More importantly, the protein expressions of NLRP3, ASC, Caspase1 p10, GSDMD, and GSDMD-NT in AMs were significantly downregulated after emodin intervention. Conclusion: Emodin has a therapeutic effect on AP-associated lung injury, which may result from the inhibition of NLRP3/Caspase1/GSDMD-mediated AMs pyroptosis signaling pathways.
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Affiliation(s)
- Xiajia Wu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jiaqi Yao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Qian Hu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hongxin Kang
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yifan Miao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Lv Zhu
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Cong Li
- Research Core Facility, West China Hospital, Sichuan University, Chengdu, China
| | - Xianlin Zhao
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Juan Li
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Meihua Wan
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wenfu Tang
- Department of Integrated Traditional Chinese and Western Medicine, West China Hospital, Sichuan University, Chengdu, China
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Samchulkunbi-Tang Alleviates Vascular Endothelial Disorder and Renal Dysfunction in Nitric Oxide-Deficient Hypertensive Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:8443952. [PMID: 34956385 PMCID: PMC8709744 DOI: 10.1155/2021/8443952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 11/24/2021] [Accepted: 11/27/2021] [Indexed: 12/05/2022]
Abstract
Samchulkunbi-tang (SCT, Shen Zhu Jian pi tang in Chinese) is said to have been first recorded by Zheng Zhi Zhun Sheng during the Ming Dynasty in China. Records of SCT in Korea are known to have been cited in Donguibogam (Dong Yi Bao Jian in Chinese), Uibang Hwaltu (Yi Fang Huo Tao in Chinese), and Bang Yak Hapyeon (Fang Yao He Bian in China). Although SCT is widely used in treating chronic gastritis and gastric ulcers, the beneficial effect on renal vascular function is unknown. Hypertension is a risk factor for cardiovascular disease and endothelial dysfunction in humans and experimental animal models of arterial hypertension. In addition, kidney dysfunction is characterized by hypertension diseases. This study was conducted to evaluate the effect of SCT on the vascular function in vitro (human umbilical cord endothelial cells, HUVECs) and in vivo (NG‐nitro‐L‐arginine methyl ester, L-NAME-induced hypertensive rats). The phosphorylation of protein kinase B (Akt) and endothelial nitric oxide synthase (eNOS) is closely related to nitric oxide (NO) production in HUVECs, and SCT in this study significantly increased these. For three weeks, hypertensive rat models were induced by L-NAME administration (40 mg/kg/day) with portable water. It was followed by oral administration with 100 and 200 mg/kg/day for two weeks to confirm the effectiveness of SCT. As a result, systolic blood pressure decreased in the SCT-treated groups, compared with that in the L-NAME-induced hypertensive group. SCT treatment restored vasorelaxation by stimulating acetylcholine and cGMP production in the thoracic aorta. In addition, SCT treatment decreased intima-media thickness, attenuated the reduction of eNOS expression, and increased endothelin-1 expression. It also increased p-Akt and p-eNOS expression in hypertensive rat aorta. Furthermore, regarding renal function parameters, SCT ameliorated urine osmolality, urine albumin level, serum creatinine, and blood urea nitrogen levels. These results demonstrate that the oriental medicine SCT exerts potent vascular and renal protective effects on nitric oxide-deficient hypertensive rats and HUVECs
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Bunaim MK, Kamisah Y, Mohd Mustazil MN, Fadhlullah Zuhair JS, Juliana AH, Muhammad N. Centella asiatica (L.) Urb. Prevents Hypertension and Protects the Heart in Chronic Nitric Oxide Deficiency Rat Model. Front Pharmacol 2021; 12:742562. [PMID: 34925007 PMCID: PMC8678489 DOI: 10.3389/fphar.2021.742562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/03/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Hypertension is a major risk factor for cardiovascular disease (CVD), which is the number one cause of global mortality. The potential use of natural products to alleviate high blood pressure has been demonstrated to exert a cardioprotective effect. Centella asiatica (L.) Urb. belongs to the plant family Apiaceae (Umbelliferae). It contains a high amount of triterpenoid and flavonoid that have antioxidant properties and are involved in the renin-angiotensin-aldosterone system which is an important hormonal system for blood pressure regulation. Objective: This study aimed to investigate the effects of C. asiatica ethanolic extract on blood pressure and heart in a hypertensive rat model, which was induced using oral N(G)-nitro-l-arginine methyl ester (l-NAME). Methods: Male Sprague-Dawley rats were divided into five groups and were given different treatments for 8 weeks. Group 1 only received deionized water. Groups 2, 4, and 5 were given l-NAME (40 mg/kg, orally). Groups 4 and 5 concurrently received C. asiatica extract (500 mg/kg, orally) and captopril (5 mg/kg, orally), respectively. Group 3 only received C. asiatica extract (500 mg/kg body weight, orally). Systolic blood pressure (SBP) was measured at weeks 0, 4, and 8, while serum nitric oxide (NO) was measured at weeks 0 and 8. At necropsy, cardiac and aortic malondialdehyde (MDA) contents, cardiac angiotensin-converting enzyme (ACE) activity, and serum level of brain natriuretic peptide (BNP) were measured. Results: After 8 weeks, the administrations of C. asiatica extract and captopril showed significant (p < 0.05) effects on preventing the elevation of SBP, reducing the serum nitric oxide level, as well as increasing the cardiac and aortic MDA content, cardiac ACE activity, and serum brain natriuretic peptide level. Conclusion: C. asiatica extract can prevent the development of hypertension and cardiac damage induced by l-NAME, and these effects were comparable to captopril.
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Affiliation(s)
- Mohd Khairulanwar Bunaim
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.,Department of Biomedical Sciences and Therapeutics, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
| | - Yusof Kamisah
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Noor Mohd Mustazil
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Abdul Hamid Juliana
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Norliza Muhammad
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Hexahydrocurcumin ameliorates hypertensive and vascular remodeling in L-NAME-induced rats. Biochim Biophys Acta Mol Basis Dis 2021; 1868:166317. [PMID: 34883248 DOI: 10.1016/j.bbadis.2021.166317] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 11/23/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022]
Abstract
Hexahydrocurcumin (HHC), a major metabolite of curcumin, possesses several biological activities such as antioxidant, anti-inflammation, and cardioprotective properties. This study aimed to investigate the effect of HHC on high blood pressure, vascular dysfunction, and remodeling induced by N-nitro L-arginine methyl ester (L-NAME) in rats. Male Wistar rats (200-250 g) received L-NAME (40 mg/kg) via drinking water for seven weeks. HHC at doses of 20, 40 or 80 mg/kg or enalapril 10 mg/kg was orally administered for the last three weeks. Blood pressure was measured weekly. Rats induced with L-NAME showed the development of hypertension, vascular dysfunction, and remodeling as demonstrated by an increase in wall thickness, cross-sectional area, and collagen deposition in the aorta. The overexpression of nuclear factor kappa B (NF-кB), vascular cell adhesion molecule 1 (VCAM1), intercellular adhesion molecule 1 (ICAM1), tumor necrosis factor-alpha (TNF-α), phosphorylated-extracellular-regulated kinase 1/2 (p-ERK1/2), phosphorylated-c-Jun N-terminal kinases (p-JNK), phosphorylated-mitogen activated protein kinase p38 (p-p38), transforming growth factor-beta 1 (TGF-β1), matrix metalloproteinase-9 (MMP-9) and collagen type 1 was observed in L-NAME-induced hypertensive rats. Increased oxidative stress markers, decreased plasma nitric oxide (NO) levels and the down-regulation of endothelial nitric oxide synthase (eNOS) expression in aortic tissues were also found in L-NAME-induced rats. Moreover, L-NAME-induced rats showed enhanced synthetic protein expression in aortic tissues. These alterations were suppressed in hypertensive rats treated with HHC or enalapril. The present study shows that HHC exhibited antihypertensive effects by improving vascular function and ameliorated the development of vascular remodeling. The responsible mechanism may involve antioxidant and anti-inflammation potential.
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Li Q, Lan T, He S, Chen W, Li X, Zhang W, Liu Y, Zhang Q, Chen X, Han Y, Su Z, Zhu D, Guo H. A network pharmacology-based approach to explore the active ingredients and molecular mechanism of Lei-gong-gen formula granule on a spontaneously hypertensive rat model. Chin Med 2021; 16:99. [PMID: 34627325 PMCID: PMC8501634 DOI: 10.1186/s13020-021-00507-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 09/17/2021] [Indexed: 12/28/2022] Open
Abstract
Background Lei-gong-gen formula granule (LFG) is a folk prescription derived from Zhuang nationality, the largest ethnic minority among 56 nationalities in China. It consists of three herbs, namely Eclipta prostrata (L.) L., Smilax glabra Roxb, and Centella asiatica (L.) Urb. It has been widely used as health protection tea for hundreds of years to prevent hypertension in Guangxi Zhuang Autonomous Region. The purpose of this study is to validate the antihypertensive effect of LFG on the spontaneously hypertensive rat (SHR) model, and to further identify the effective components and anti-hypertension mechanism of LFG. Methods The effects of LFG on blood pressure, body weight, and heart rate were investigated in vivo using the SHR model. The levels of NO, ANG II, and ET-1 in the serum were measured, and pathological changes in the heart were examined by H&E staining. The main active components of LFG, their corresponding targets, and hypertension associated pathways were discerned through network pharmacology analysis based on the Traditional Chinese Medicine Systems Pharmacology (TCMSP), Traditional Chinese Medicine Integrated Database (TCMID), and the Bioinformatics Analysis Tool for Molecular Mechanism of Traditional Chinese Medicine (BATMAN-TCM). Then the predicted results were further verified by molecular biology experiments such as RT-qPCR and western blot. Additionally, the potential active compounds were predicted by molecular docking technology, and the chemical constituents of LFG were analyzed and identified by UPLC-QTOF/MS technology. Finally, an in vitro assay was performed to investigate the protective effects of potential active compounds against hydrogen peroxide (H2O2) induced oxidative damage in human umbilical vein endothelial cells (HUVEC). Results LFG could effectively reduce blood pressure and increase serum NO content in SHR model. Histological results showed that LFG could ameliorate pathological changes such as cardiac hypertrophy and interstitial inflammation. From network pharmacology analysis, 53 candidate active compounds of LFG were collected, which linked to 765 potential targets, and 828 hypertension associated targets were retrieved, from which 12 overlapped targets both related to candidate active compounds from LFG and hypertension were screened and used as the potential targets of LFG on antihypertensive effect. The molecular biology experiments of the 12 overlapped targets showed that LFG could upregulate the mRNA and protein expressions of NOS3 and proto-oncogene tyrosine-protein kinase SRC (SRC) in the thoracic aorta. Pathway enrichment analysis showed that the PI3K-AKT signaling pathway was closely related to the expression of NOS3 and SRC. Moreover, western blot results showed that LFG significantly increased the protein expression levels of PI3K and phosphorylated AKT in SHR model, suggesting that LFG may active the PI3K-AKT signaling pathway to decrease hypertension. Molecular docking study further supported that p-hydroxybenzoic acid, cedar acid, shikimic acid, salicylic acid, nicotinic acid, linalool, and histidine can be well binding with NOS3, SRC, PI3K, and AKT. UPLC-QTOF/MS analysis confirmed that p-hydroxybenzoic acid, shikimic acid, salicylic acid, and nicotinic acid existed in LFG. Pre-treatment of HUVEC with nicotinic acid could alleviate the effect on cell viability induced by H2O2 and increase the NO level in cell supernatants. Conclusions LFG can reduce the blood pressure in SHR model, which might be attributed to increasing the NO level in serum for promoting vasodilation via upregulating SRC expression level and activating the PI3K-AKT-NOS3 signaling pathway. Nicotinic acid might be the potential compound for LFG antihypertensive effect. Supplementary Information The online version contains supplementary material available at 10.1186/s13020-021-00507-1.
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Affiliation(s)
- Qiaofeng Li
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & College of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China.,Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, School of preclinical medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Taijin Lan
- School of preclinical medicine, Guangxi University of Chinese Medicine, 179 Mingxiu Dong Road, Nanning, 530001, China
| | - Songhua He
- Guangxi Institute for Food and Drug Control, 9 Qinghu Road, Nanning, 530021, China
| | - Weiwei Chen
- Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, 530021, China.,International Joint Laboratory on Regeneration of Bone and Soft Tissues, Guangxi Medical University, Guangxi, 530021, China
| | - Xiaolan Li
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & College of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China.,Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, School of preclinical medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Weiquan Zhang
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & College of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China.,Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, School of preclinical medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Ying Liu
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, School of preclinical medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China.,College of Pharmacy, Guangxi University of Chinese Medicine, 179 Mingxiu Dong Road, Nanning, 530001, China
| | - Qiuping Zhang
- Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, School of preclinical medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China.,The First Affiliated Hospital, Guangxi Medical University, 6 Shuangyong Road, Nanning, 530021, China
| | - Xin Chen
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & College of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China.,Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, School of preclinical medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Yaoyao Han
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & College of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China.,Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, School of preclinical medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China
| | - Zhiheng Su
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & College of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China.
| | - Dan Zhu
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & College of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China.
| | - Hongwei Guo
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation & College of Pharmacy, Guangxi Medical University, 22 Shuangyong Road, Nanning, 530021, China. .,Key Laboratory of Longevity and Aging-related Diseases of Chinese Ministry of Education & Center for Translational Medicine, School of preclinical medicine, Guangxi Medical University, Nanning, 530021, Guangxi, China. .,Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, 530021, China.
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Actions and Therapeutic Potential of Madecassoside and Other Major Constituents of Centella asiatica: A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11188475] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Centella asiatica is a popular herb well-known for its wide range of therapeutic effects and its use as a folk medicine for many years. Its therapeutic properties have been well correlated with the presence of asiaticoside, madecassoside, asiatic and madecassic acids, the pentacyclic triterpenes. The herb has been extensively known to treat skin conditions; nevertheless, several pre-clinical and clinical studies have scientifically demonstrated its effectiveness in other disorders. Among the active constituents that have been identified in Centella asiatica, madecassoside has been the subject of only a relatively small number of scientific reports. Therefore, this review, while including other major constituents of this plant, focuses on the therapeutic potential, pharmacokinetics and toxicity of madecassoside.
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Jama HA, Muralitharan RR, Xu C, O'Donnell JA, Bertagnolli M, Broughton BRS, Head GA, Marques FZ. Rodent models of hypertension. Br J Pharmacol 2021; 179:918-937. [PMID: 34363610 DOI: 10.1111/bph.15650] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 01/03/2023] Open
Abstract
Elevated blood pressure (BP), or hypertension, is the main risk factor for cardiovascular disease. As a multifactorial and systemic disease that involves multiple organs and systems, hypertension remains a challenging disease to study. Models of hypertension are invaluable to support the discovery of the specific genetic, cellular and molecular mechanisms underlying essential hypertension, as well as to test new possible treatments to lower BP. Rodent models have proven to be an invaluable tool for advancing the field. In this review, we discuss the strengths and weaknesses of rodent models of hypertension through a systems approach. We highlight the ways how target organs and systems including the kidneys, vasculature, the sympathetic nervous system (SNS), immune system and the gut microbiota influence BP in each rodent model. We also discuss often overlooked hypertensive conditions such as pulmonary hypertension and hypertensive-pregnancy disorders, providing an important resource for researchers.
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Affiliation(s)
- Hamdi A Jama
- Hypertension Research Laboratory, School of Biological Sciences, Faculty of Science, Monash University, Melbourne, Australia.,Heart Failure Research Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Rikeish R Muralitharan
- Hypertension Research Laboratory, School of Biological Sciences, Faculty of Science, Monash University, Melbourne, Australia.,Institute for Medical Research, Ministry of Health Malaysia, Kuala Lumpur, Malaysia
| | - Chudan Xu
- Hypertension Research Laboratory, School of Biological Sciences, Faculty of Science, Monash University, Melbourne, Australia
| | - Joanne A O'Donnell
- Hypertension Research Laboratory, School of Biological Sciences, Faculty of Science, Monash University, Melbourne, Australia
| | - Mariane Bertagnolli
- Laboratory of Maternal-child Health, Hospital Sacre-Coeur Research Center, CIUSSS Nord-de-l'Île-de-Montréal, Montreal, Canada.,School of Physical and Occupational Therapy, Faculty of Medicine, McGill University, Montreal, Canada
| | - Bradley R S Broughton
- Department of Pharmacology, Biomedicine Discovery Institute, Faculty of Medicine Nursing and Health Sciences, Monash University, Melbourne, Australia
| | - Geoffrey A Head
- Department of Pharmacology, Biomedicine Discovery Institute, Faculty of Medicine Nursing and Health Sciences, Monash University, Melbourne, Australia.,Neuropharmacology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Francine Z Marques
- Hypertension Research Laboratory, School of Biological Sciences, Faculty of Science, Monash University, Melbourne, Australia.,Heart Failure Research Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia
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11
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Chiang SS, Chen LS, Chu CY. Active food ingredients production from cold pressed processing residues of Camellia oleifera and Camellia sinensis seeds for regulation of blood pressure and vascular function. CHEMOSPHERE 2021; 267:129267. [PMID: 33338714 DOI: 10.1016/j.chemosphere.2020.129267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
Hypertension is one of the most common illnesses worldwide. Accurate control of blood pressure can help reduce the incidence of complications. Nω-nitro-l-arginine methyl ester (l-NAME) is a nitric oxide synthase inhibitor that increases oxidative stress and inflammatory responses, activating the expression of transforming growth factor-beta (TGF-β), which thickens the vessel wall and ultimately contributes to hypertension. Studies have shown that seeds of Camellia oleifera Abel and Camellia sinensis (L). O. Kuntze (Oolong tea) possesses antibacterial, antioxidant, and anti-inflammatory functions. Therefore, this study aimed was to investigate the functional components in the seed pomace ethanol extracts of C. oleifera Abel (CPE) and Oolong tea (OPE) and to evaluate the ameliorative effects of CPE and OPE on oxidative stress, inflammation, and vascular remodeling in l-NAME induced hypertensive C57BL/6J mice. After 8 weeks of treatment, all CPE and OPE dose groups significantly reduced systolic and diastolic blood pressure, by over 30 mmHg and 15 mmHg, respectively. Additionally, CPE and OPE decreased transforming growth factor-beta (TGF-β) expression in the thoracic aortic and thoracic aortic intima-media thickness. Moreover, CPE and OPE decreased the malondialdehyde concentration in the liver by over 33%, as well as levels of tumor necrosis factor-α, interleukin 6, and interleukin-1β in the kidney and heart. Collectively, CPE and OPE can reduce oxidative stress and vascular remodeling, lowering blood pressure, and reducing the risk of cardiovascular disease.
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Affiliation(s)
- Shen-Shih Chiang
- Department of Food Science and Biotechnology, National Chung Hsing University, 40227, Taichung, Taiwan.
| | - Le-Shu Chen
- Department of Food Science and Biotechnology, National Chung Hsing University, 40227, Taichung, Taiwan.
| | - Chen-Yeon Chu
- Institute of Green Products, Feng Chia University, 40724, Taichung, Taiwan; Master's Program of Green Energy Science and Technology, Feng Chia University, 40724, Taichung, Taiwan.
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12
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Tardelli LP, Duchatsch F, Herrera NA, Vicentini CA, Okoshi K, Amaral SL. Differential effects of dexamethasone on arterial stiffness, myocardial remodeling and blood pressure between normotensive and spontaneously hypertensive rats. J Appl Toxicol 2021; 41:1673-1686. [PMID: 33629383 DOI: 10.1002/jat.4155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/01/2021] [Accepted: 02/10/2021] [Indexed: 12/11/2022]
Abstract
Dexamethasone (DEX)-induced hypertension is observed in normotensive rats, but little is known about the effects of DEX on spontaneously hypertensive animals (SHR). This study aimed to evaluate the effects of DEX on hemodynamics, cardiac hypertrophy and arterial stiffness in normotensive and hypertensive rats. Wistar rats and SHR were treated with DEX (50 μg/kg s.c., 14 d) or saline. Pulse wave velocity (PWV), echocardiographic parameters, blood pressure (BP), autonomic modulation and histological analyses of heart and thoracic aorta were performed. SHR had higher BP compared with Wistar, associated with autonomic unbalance to the heart. Echocardiographic changes in SHR (vs. Wistar) were suggestive of cardiac remodeling: higher relative wall thickness (RWT, +28%) and left ventricle mass index (LVMI, +26%) and lower left ventricle systolic diameter (LVSD, -19%) and LV diastolic diameter (LVDD, -10%), with slightly systolic dysfunction and preserved diastolic dysfunction. Also, SHR had lower myocardial capillary density and similar collagen deposition area. PWV was higher in SHR due to higher aortic collagen deposition. DEX-treated Wistar rats presented higher BP (~23%) and autonomic unbalance. DEX did not change cardiac structure in Wistar, but PWV (+21%) and aortic collagen deposition area (+21%) were higher compared with control. On the other side, DEX did not change BP or autonomic balance to the heart in SHR, but reduced RWT and LV collagen deposition area (-12% vs. SHRCT ). In conclusion, the results suggest a differential effect of dexamethasone on arterial stiffness, myocardial remodeling and blood pressure between normotensive and spontaneously hypertensive rats.
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Affiliation(s)
- Lidieli P Tardelli
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil
| | - Francine Duchatsch
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil
| | - Naiara A Herrera
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil
| | | | - Katashi Okoshi
- Department of Medical Clinic, Botucatu Medical School, São Paulo State University (UNESP), Botucatu, Brazil
| | - Sandra L Amaral
- Joint Graduate Program in Physiological Sciences, PIPGCF UFSCar/UNESP, São Carlos, Brazil.,Department of Physical Education, School of Sciences, São Paulo State University (UNESP), Bauru, Brazil
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13
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Poasakate A, Maneesai P, Rattanakanokchai S, Bunbupha S, Tong-Un T, Pakdeechote P. Genistein Prevents Nitric Oxide Deficiency-Induced Cardiac Dysfunction and Remodeling in Rats. Antioxidants (Basel) 2021; 10:antiox10020237. [PMID: 33557258 PMCID: PMC7914683 DOI: 10.3390/antiox10020237] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 01/30/2021] [Accepted: 01/31/2021] [Indexed: 12/16/2022] Open
Abstract
Genistein is an isoflavone found in soybeans. This study evaluates the protective effects of genistein on Nω-nitro-L-arginine methyl ester hydrochloride (L-NAME)-induced hypertension, cardiac remodeling, and dysfunction in rats. Male Wistar rats were treated with L-NAME 40 mg/kg/day together for 5 weeks, with or without genistein at a dose of 40 or 80 mg/kg/day or lisinopril 5 mg/kg/day (n = 8 per group). Genistein prevented L-NAME-induced hypertension in rats. Increases in the left ventricular weight, metalloproteinase-2, metalloproteinase-9, and collagen type I intensity were observed in L-NAME rats, and these changes were attenuated in the genistein-treated group. Genistein reduced circulating angiotensin-converting enzyme activity and angiotensin II concentrations in L-NAME rats. L-NAME increased plasma and cardiac malondialdehyde and vascular superoxide generations, as well as reductions of serum and cardiac catalase activities in rats. Plasma nitrate/nitrite were protected in the genistein-treated group. Genistein prevented the L-NAME-induced overexpression of angiotensin II receptor type I (AT1R), nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunit 2 (gp91phox), and transforming growth factor beta I (TGF-β1) in hypertensive rats. In conclusion, genistein exhibited a cardioprotective effect in hypertensive rats in this study. The molecular mechanisms might be mediated by suppression of oxidative stress through the Ang II/AT1R/NADPH oxidase/TGF-β1 signaling pathway.
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Affiliation(s)
- Anuson Poasakate
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (A.P.); (P.M.); (T.T.-U.)
| | - Putcharawipa Maneesai
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (A.P.); (P.M.); (T.T.-U.)
| | | | - Sarawoot Bunbupha
- Faculty of Medicine, Mahasarakham University, Maha Sarakham 44000, Thailand;
| | - Terdthai Tong-Un
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (A.P.); (P.M.); (T.T.-U.)
| | - Poungrat Pakdeechote
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; (A.P.); (P.M.); (T.T.-U.)
- Research Institute for Human High Performance and Health Promotion, Khon Kaen University, Khon Kaen 40002, Thailand
- Correspondence: ; Tel.: +66-86-852-6060; Fax: +66-4334-8394
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14
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Poasakate A, Maneesai P, Chiangsaen P, Bunbupha S, Settheetham-Ishida W, Pakdeechote P. Cratoxylum formosum dyer extract alleviates testicular damage in hypertensive rats. Andrologia 2020; 53:e13917. [PMID: 33244785 DOI: 10.1111/and.13917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/02/2020] [Accepted: 11/05/2020] [Indexed: 11/30/2022] Open
Abstract
The effects of a Cratoxylum formosum (Jack) Dyer ssp. (CF) extract on testicular damage were assessed in hypertensive rats. Nω -nitro-L-arginine methyl ester hydrochloride (L-NAME; 40 mg kg-1 day-1 ) was administered for 5 weeks to induce hypertension in male Sprague-Dawley rats, and treated with CF extract (100, 300 or 500 mg kg-1 day-1 ) or sildenafil (5 mg kg-1 day-1 ) during the final 2 weeks (n = 8/group). Biochemical components of the CF extract were identified and mainly contained phenolic compounds. The CF extract significantly reduced systolic blood pressure and alleviated impaired sperm quality and seminiferous tubular morphology in hypertensive rats. CF extract restored reduced serum testosterone and protein expression of steroidogenic acute regulatory protein (StAR), nuclear factor erythroid-related factor 2 (Nrf2), and haem oxygenase 1 (HO-1) in L-NAME rats. Hypertensive rats presented decreased antioxidant enzyme activities, and increased testicular and plasma malondialdehyde (MDA) levels and superoxide production, all of which were normalised by CF extract. Furthermore, endothelial nitric oxide synthase (eNOS) expression in testicular tissue and plasma nitrate/nitrite levels were restored in hypertensive rats administered CF extract. Conclusion: CF extract alleviated testicular damage in hypertensive rats. Potential molecular mechanisms may involve suppression of oxidative stress and restoration of StAR, Nrf2, HO-1 and eNOS expression in hypertensive rats.
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Affiliation(s)
- Anuson Poasakate
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Putcharawipa Maneesai
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Petcharat Chiangsaen
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Sarawoot Bunbupha
- Faculty of Medicine, Mahasarakham University, Maha Sarakham, Thailand
| | | | - Poungrat Pakdeechote
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.,Research Institute for Human High Performance and Health Promotion, Khon Kaen University, Khon Kaen, Thailand
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Potue P, Maneesai P, Kukongviriyapan U, Prachaney P, Pakdeechote P. Cratoxylum Formosum extract exhibits antihypertensive effects via suppressing the renin-angiotensin cascade in hypertensive rats. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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16
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Koc Yildirim E, Dedeoglu Z, Kaya M, Uner AG. The effect of swimming training on adrenomedullin levels, oxidative stress variables, and gastrocnemius muscle contractile properties in hypertensive rats. Clin Exp Hypertens 2020; 43:131-137. [PMID: 32985250 DOI: 10.1080/10641963.2020.1825726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Introduction/Aim: Regular exercise may have beneficial effects on high blood-pressure, as shown in different types of experimental hypertension models in rats. The present study aims to investigate the effects of 6-week swimming training on blood pressure, oxidative stress variables of selected tissues, serum adrenomedullin (ADM) levels, and in situ muscle contraction in rats with hypertension induced by Nω-nitro-L-arginine methyl ester hydrochloride (L-NAME), an inhibitor of endothelial nitric oxide synthases (eNOs). Materials and Methods: Twenty-six male Sprague Dawley, 8 weeks of age, rats were randomly divided into four groups: (I) normotensive (C), (II) normotensive + exercise (E), (III) hypertensive (L), and (IV) hypertensive + exercise (LE). Hypertension was induced by the oral administration of L-NAME (60 mg/kg) for 6 weeks. Exercise was performed 5 times (1-h each) per week for 6 weeks. At the end of the experiment, blood and tissue samples (the gastrocnemius muscle, heart, kidney, and thoracic aorta) were collected following contractile properties of the gastrocnemius muscle in situ weredetermined. In the collected tissues, oxidative stress (e.g., lipid oxidation and antioxidant enzyme activity) and serum ADM levels were measured. 6-week L-NAME administration per se (Group L) led to a significant increase in systolic and diastolic blood pressure compared to other groups. Results: Importantly, 6-week exercise caused a protective effect of high blood pressure in the rats received L-NAME (Group LE). The level of ADM was lower in the rats received L-NAME than that of the control group. L-NAME increased lipid peroxidation in the thoracic aorta and decreased superoxide dismutase in the heart, kidney and muscle, and decreased catalase and glutathione in the heart. However, the exercise intervention did not have protective effect on the L-NAME-mediated oxidative damage in the collected tissues. Conclusion: In conclusion, 6-week exercise intervention rescued rats from high blood pressure, but did not have ameliorative effect on the decreased ADM levels.
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Affiliation(s)
- Ece Koc Yildirim
- Department of Physiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University , Aydin, Turkey
| | - Zahide Dedeoglu
- Department of Physiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University , Aydin, Turkey
| | - Mehmet Kaya
- Department of Zootechny, Faculty of Veterinary Medicine, Aydin Adnan Menderes University , Aydin, Turkey
| | - Aykut G Uner
- Department of Physiology, Faculty of Veterinary Medicine, Aydin Adnan Menderes University , Aydin, Turkey
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17
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Abstract
Significance: Fibrosis is a stereotypic, multicellular tissue response to diverse types of injuries that fundamentally result from a failure of cell/tissue regeneration. This complex tissue remodeling response disrupts cellular/matrix composition and homeostatic cell-cell interactions, leading to loss of normal tissue architecture and progressive loss of organ structure/function. Fibrosis is a common feature of chronic diseases that may affect the lung, kidney, liver, and heart. Recent Advances: There is emerging evidence to support a combination of genetic, environmental, and age-related risk factors contributing to susceptibility and/or progression of fibrosis in different organ systems. A core pathway in fibrogenesis involving these organs is the induction and activation of nicotinamide adenine dinucleotide phosphate oxidase (NOX) family enzymes. Critical Issues: We explore current pharmaceutical approaches to targeting NOX enzymes, including repurposing of currently U.S. Food and Drug Administration (FDA)-approved drugs. Specific inhibitors of various NOX homologs will aid establishing roles of NOXs in the various organ fibroses and potential efficacy to impede/halt disease progression. Future Directions: The discovery of novel and highly specific NOX inhibitors will provide opportunities to develop NOX inhibitors for treatment of fibrotic pathologies.
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Affiliation(s)
- Karen Bernard
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Victor J Thannickal
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
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18
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Akintunde JK, Akintola TE, Aliu FH, Fajoye MO, Adimchi SO. Naringin regulates erectile dysfunction by abolition of apoptosis and inflammation through NOS/cGMP/PKG signalling pathway on exposure to Bisphenol-A in hypertensive rat model. Reprod Toxicol 2020; 95:123-136. [PMID: 32428650 DOI: 10.1016/j.reprotox.2020.05.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 05/11/2020] [Accepted: 05/13/2020] [Indexed: 12/13/2022]
Abstract
This study investigated the effect of naringin (NRG) on extracellular metabolism of ATP through the NOS/cGMP/PKG signaling pathway induced by Nω-nitro-L-arginine methyl ester hydrochloride (L-NAME) on exposure to Bisphenol-A (BPA) in penis. Fifty-six adult male albino rats were randomly distributed into eight (n = 7) groups. Group I: control animals, Group II was treated with 40 mg/kg L-NAME, Group III was treated with 50 mg/kg BPA, Group IV was treated with 40 mg/kg L-NAME +50 mg/kg BPA. Group V was administered with 40 mg/kg L-NAME +80 mg/kg NRG. Group VI was administered with 50 mg/kg BPA + 80 mg/kg NRG. Group VII was administered with 40 mg/kg L-NAME+50 mg/kg BPA + 80 mg/kg NRG. Lastly, group VIII was treated with 80 mg/kg NRG for 14 days. NRG prevented hypertension and erectile dysfunction by inhibiting the activities of angiotensin-converting enzymes, arginase, and phosphodiesterase-51 (PDE-51) with corresponding down-regulation of inflammatory markers including TNF-α and IL-B. Additionally, hypertensive erectile dysfunction was remarkably prevented by NRG as manifested by the declined activities of AChE, MAO-A and enzymes of ATP hydrolysis (ATPase, ADPase, AMPase and ADA) with resultant increase in NO level. Also, penile expression of antigen presenting cells, CD43 transcript, caspace-9 and tumor suppressor P53 proteins were repressed on treatment with NRG. This study validates the hypothesis that NRG may be a valuable remedy in abrogating penile inflammatory markers, apoptosis and enzymes of ATP-hydrolysis via NOS/cGMP/PKG signaling pathways in hypertensive rat model on exposure to environmental toxicant.
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Affiliation(s)
- J K Akintunde
- Applied Biochemistry and Molecular Toxicology Research Group, Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria.
| | - T E Akintola
- Applied Biochemistry and Molecular Toxicology Research Group, Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - F H Aliu
- Applied Biochemistry and Molecular Toxicology Research Group, Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - M O Fajoye
- Applied Biochemistry and Molecular Toxicology Research Group, Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - S O Adimchi
- Applied Biochemistry and Molecular Toxicology Research Group, Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
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19
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Asiatic Acid Protects against Doxorubicin-Induced Cardiotoxicity in Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5347204. [PMID: 32509145 PMCID: PMC7246415 DOI: 10.1155/2020/5347204] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 01/28/2020] [Indexed: 11/18/2022]
Abstract
The use of doxorubicin (DOX) can result in depression of cardiac function and refractory cardiomyopathy. Currently, there are no effective approaches to prevent DOX-related cardiac complications. Asiatic acid (AA) has been reported to provide cardioprotection against several cardiovascular diseases. However, whether AA could attenuate DOX-related cardiac injury remains unclear. DOX (15 mg/kg) was injected intraperitoneally into the mice to mimic acute cardiac injury, and the mice were given AA (10 mg/kg or 30 mg/kg) for 2 weeks for protection. The data in our study found that AA-treated mice exhibited attenuated cardiac injury and improved cardiac function in response to DOX injection. AA also suppressed myocardial oxidative damage and apoptosis without affecting cardiac inflammation in DOX-treated mice. AA also provided protection in DOX-challenged cardiomyocytes, improved cell viability, and suppressed intracellular reactive oxygen species (ROS) in vitro. Detection of signaling pathways showed that AA activated protein kinase B (AKT) signaling pathway in vivo and in vitro. Furthermore, we found that AA lost its protective effects in the heart with AKT inactivation. In conclusion, our results found that AA could attenuate DOX-induced myocardial oxidative stress and apoptosis via activation of the AKT signaling pathway.
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20
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Abd Allah ESH, Ahmed MA, Makboul R, Abd El-Rahman MA. Effects of hydrogen sulphide on oxidative stress, inflammatory cytokines, and vascular remodelling in l-NAME-induced hypertension. Clin Exp Pharmacol Physiol 2020; 47:650-659. [PMID: 31868952 DOI: 10.1111/1440-1681.13240] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/29/2019] [Accepted: 12/18/2019] [Indexed: 12/12/2022]
Abstract
This study was designed to evaluate the protective effects of hydrogen sulphide (H2 S) against NG-Nitro l-Arginine Methyl Ester (l-NAME)-induced hypertension and its possible effects on the inflammatory process, oxidative stress, and vascular remodelling in rats. Forty male Wistar Albino rats were assigned to four equal groups: the control group, the H2 S control group, the hypertensive group, and the treated group, which received concomitant treatment with sodium hydrosulphide (NaHS) and l-NAME. Systolic blood pressure (SBP) was measured weekly. Serum levels of nitric oxide (NO), total peroxide, and total antioxidant capacity (TAC) were measured and the oxidative stress index (OSI) was calculated. Aortic weight and length were measured and the aortic weight/length ratio determined. Aortic fold expression of interferon-γ (IFN-γ) and vascular cell adhesion molecule-1 (VCAM-1) mRNA was measured using qPCR. Aortic media thickness and elastin content were measured morphometrically. l-NAME administration increased SBP, serum levels of total peroxide and OSI, but reduced serum levels of NO and TAC. Aortic fold expression of IFN-γ and VCAM-1 mRNA, aortic weight, aortic weight/length ratio, aortic media thickness, and elastin area percentage were increased in the hypertensive group. Concurrent administration of l-NAME and H2 S attenuated these changes. Thus, H2 S could attenuate the increase in ABP through restoration of the NO level, reduction in the oxidative state, and attenuation of the inflammatory process, thereby reduced vascular remodelling.
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Affiliation(s)
- Eman S H Abd Allah
- Medical Physiology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Marwa A Ahmed
- Medical Physiology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Rania Makboul
- Pathology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Mona A Abd El-Rahman
- Medical Physiology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
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21
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Wunpathe C, Maneesai P, Rattanakanokchai S, Bunbupha S, Kukongviriyapan U, Tong-un T, Pakdeechote P. Tangeretin mitigates l-NAME-induced ventricular dysfunction and remodeling through the AT1R/pERK1/2/pJNK signaling pathway in rats. Food Funct 2020; 11:1322-1333. [DOI: 10.1039/c9fo02365h] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Tangeretin alleviates ventricular alterations in l-NAME hypertensive rats.
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Affiliation(s)
- Chutamas Wunpathe
- Department of Physiology
- Faculty of Medicine
- Khon Kaen University
- Khon Kaen 40002
- Thailand
| | - Putcharawipa Maneesai
- Department of Physiology
- Faculty of Medicine
- Khon Kaen University
- Khon Kaen 40002
- Thailand
| | - Siwayu Rattanakanokchai
- Veterinary Teaching Hospital
- Faculty of Veterinary Medicine
- Khon Kaen University
- Khon Kaen 40002
- Thailand
| | - Sarawoot Bunbupha
- Faculty of Medicine
- Mahasarakham University
- Mahasarakham 44150
- Thailand
| | - Upa Kukongviriyapan
- Department of Physiology
- Faculty of Medicine
- Khon Kaen University
- Khon Kaen 40002
- Thailand
| | - Terdthai Tong-un
- Department of Physiology
- Faculty of Medicine
- Khon Kaen University
- Khon Kaen 40002
- Thailand
| | - Poungrat Pakdeechote
- Department of Physiology
- Faculty of Medicine
- Khon Kaen University
- Khon Kaen 40002
- Thailand
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22
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Bunbupha S, Pakdeechote P, Maneesai P, Prachaney P, Boonprom P. Carthamus Tinctorius L. extract attenuates cardiac remodeling in L-NAME-induced hypertensive rats by inhibiting the NADPH oxidase-mediated TGF-β1 and MMP-9 pathway. Ann Anat 2019; 222:120-128. [DOI: 10.1016/j.aanat.2018.12.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/11/2018] [Accepted: 12/16/2018] [Indexed: 12/13/2022]
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Shekhawat P, Bagul M, Edwankar D, Pokharkar V. Enhanced dissolution/caco-2 permeability, pharmacokinetic and pharmacodynamic performance of re-dispersible eprosartan mesylate nanopowder. Eur J Pharm Sci 2019; 132:72-85. [PMID: 30797937 DOI: 10.1016/j.ejps.2019.02.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 02/11/2019] [Accepted: 02/15/2019] [Indexed: 02/06/2023]
Abstract
Eprosartan mesylate is an angiotensin receptor blocker which suffers from extremely poor bioavailability owing to its poor solubility and poor permeability. The rationale of the present work was to design the drug delivery system capable of overcoming these constraints. Nanoformulation of eprosartan mesylate was developed using ultrasonic wave-assisted liquid-antisolvent technique. Nanoformulation was further freeze dried with the addition of 1% of mannitol resulting in formation of re-dispersible EPM nanopowder. To prove our proof of principle, the re-dispersed nanopowder with z-average particle size 165.2 ± 1.8 nm was evaluated enormously for in-vitro dissolution behaviour and permeability assay through Caco-2 cell model. In-vitro dissolution study was performed at pH 1.2, pH 4.5 and pH 6.8. Result demonstrates enhanced dissolution from EPM nanopowder with negligible pH dependence. Transport studies accomplished using validated Caco-2 based cell model showed 11-fold enhanced apparent permeability of redispersed nanopowder when compared to pure EPM and corresponding physical mixture (p < 0.0001). In-vivo study reveals, exceptionally strong variations in plasma concentration of EPM through nanopowder (62 mg/kg) formulation when compared with physical mixture and pure EPM (62 mg/kg) group. Moreover, study manifests that 5-fold lower dose (12.4 mg/kg) of developed formulation yields higher exposure (4600 ± 36 ng·mL-1·h) than pure EPM (2349 ± 34 ng·mL-1·h) and corresponding physical mixture (2456 ± 49 ng·mL-1·h) at therapeutic dose (62 mg/kg). Further, L-NAME induced hypertensive model was undertaken to investigate effect of reduced dose of EPM nanopowder on systolic blood pressure, biochemical analysis and histopathology of heart. Results revealed pronounced antihypertensive potential of re-dispersed EPM nanopowder at 5-fold lower dose (12.4 mg/kg). In conclusion, our study indicates that nanopowder delivery might be the promising approach for providing enhanced oral bioavailability at lower dose.
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Affiliation(s)
- Prachi Shekhawat
- Department of Pharmaceutics, Poona College of Pharmacy, Bharati Vidyapeeth University, Erandwane, Pune, India
| | - Milind Bagul
- Raptim Research Limited, Mahape, Navi Mumbai, Maharashtra, India
| | - Diptee Edwankar
- Raptim Research Limited, Mahape, Navi Mumbai, Maharashtra, India
| | - Varsha Pokharkar
- Department of Pharmaceutics, Poona College of Pharmacy, Bharati Vidyapeeth University, Erandwane, Pune, India.
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24
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Potue P, Wunpathe C, Maneesai P, Kukongviriyapan U, Prachaney P, Pakdeechote P. Nobiletin alleviates vascular alterations through modulation of Nrf-2/HO-1 and MMP pathways in l-NAME induced hypertensive rats. Food Funct 2019; 10:1880-1892. [DOI: 10.1039/c8fo02408a] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nobiletin alleviates l-NAME-induced vascular dysfunction and remodeling and superoxide production in rats.
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Affiliation(s)
- Prapassorn Potue
- Department of Physiology
- Faculty of Medicine
- Khon Kaen University
- Khon Kaen
- Thailand
| | - Chutamas Wunpathe
- Department of Physiology
- Faculty of Medicine
- Khon Kaen University
- Khon Kaen
- Thailand
| | | | - Upa Kukongviriyapan
- Department of Physiology
- Faculty of Medicine
- Khon Kaen University
- Khon Kaen
- Thailand
| | - Parichat Prachaney
- Department of Anatomy
- Faculty of Medicine
- Khon Kaen University
- Khon Kaen
- Thailand
| | - Poungrat Pakdeechote
- Department of Physiology
- Faculty of Medicine
- Khon Kaen University
- Khon Kaen
- Thailand
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Maneesai P, Bunbupha S, Potue P, Berkban T, Kukongviriyapan U, Kukongviriyapan V, Prachaney P, Pakdeechote P. Hesperidin Prevents Nitric Oxide Deficiency-Induced Cardiovascular Remodeling in Rats via Suppressing TGF-β1 and MMPs Protein Expression. Nutrients 2018; 10:E1549. [PMID: 30347737 PMCID: PMC6213402 DOI: 10.3390/nu10101549] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 10/12/2018] [Accepted: 10/18/2018] [Indexed: 12/12/2022] Open
Abstract
Hesperidin is a major flavonoid isolated from citrus fruits that exhibits several biological activities. This study aims to evaluate the effect of hesperidin on cardiovascular remodeling induced by n-nitro l-arginine methyl ester (l-NAME) in rats. Male Sprague-Dawley rats were treated with l-NAME (40 mg/kg), l-NAME plus hesperidin (15 mg/kg), hesperidin (30 mg/kg), or captopril (2.5 mg/kg) for five weeks (n = 8/group). Hesperidin or captopril significantly prevented the development of hypertension in l-NAME rats. l-NAME-induced cardiac remodeling, i.e., increases in wall thickness, cross-sectional area (CSA), and fibrosis in the left ventricular and vascular remodeling, i.e., increases in wall thickness, CSA, vascular smooth muscle cells, and collagen deposition in the aorta were attenuated by hesperidin or captopril. These were associated with reduced oxidative stress markers, tumor necrosis factor-alpha (TNF-α), transforming growth factor-beta 1 (TGF-β1), and enhancing plasma nitric oxide metabolite (NOx) in l-NAME treated groups. Furthermore, up-regulation of tumor necrosis factor receptor type 1 (TNF-R1) and TGF- β1 protein expression and the overexpression of matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9) was suppressed in l-NAME rats treated with hesperidin or captopril. These data suggested that hesperidin had cardioprotective effects in l-NAME hypertensive rats. The possible mechanism may involve antioxidant and anti-inflammatory effects.
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Affiliation(s)
- Putcharawipa Maneesai
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
- Cardiovascular Research Group, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Sarawoot Bunbupha
- Faculty of Medicine, Mahasarakham University, Maha Sarakham 44000, Thailand.
| | - Prapassorn Potue
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Thewarid Berkban
- Faculty of Medicine, Mahasarakham University, Maha Sarakham 44000, Thailand.
| | - Upa Kukongviriyapan
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
- Cardiovascular Research Group, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Veerapol Kukongviriyapan
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Parichat Prachaney
- Cardiovascular Research Group, Khon Kaen University, Khon Kaen 40002, Thailand.
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Poungrat Pakdeechote
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
- Cardiovascular Research Group, Khon Kaen University, Khon Kaen 40002, Thailand.
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Nagoor Meeran MF, Goyal SN, Suchal K, Sharma C, Patil CR, Ojha SK. Pharmacological Properties, Molecular Mechanisms, and Pharmaceutical Development of Asiatic Acid: A Pentacyclic Triterpenoid of Therapeutic Promise. Front Pharmacol 2018; 9:892. [PMID: 30233358 PMCID: PMC6131672 DOI: 10.3389/fphar.2018.00892] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 07/23/2018] [Indexed: 12/16/2022] Open
Abstract
Asiatic acid (AA) is a naturally occurring aglycone of ursane type pentacyclic triterpenoids. It is abundantly present in many edible and medicinal plants including Centella asiatica that is a reputed herb in many traditional medicine formulations for wound healing and neuropsychiatric diseases. AA possesses numerous pharmacological activities such as antioxidant and anti-inflammatory and regulates apoptosis that attributes its therapeutic effects in numerous diseases. AA showed potent antihypertensive, nootropic, neuroprotective, cardioprotective, antimicrobial, and antitumor activities in preclinical studies. In various in vitro and in vivo studies, AA found to affect many enzymes, receptors, growth factors, transcription factors, apoptotic proteins, and cell signaling cascades. This review aims to represent the available reports on therapeutic potential and the underlying pharmacological and molecular mechanisms of AA. The review also also discusses the challenges and prospects on the pharmaceutical development of AA such as pharmacokinetics, physicochemical properties, analysis and structural modifications, and drug delivery. AA showed favorable pharmacokinetics and found bioavailable following oral or interaperitoneal administration. The studies demonstrate the polypharmacological properties, therapeutic potential and molecular mechanisms of AA in numerous diseases. Taken together the evidences from available studies, AA appears one of the important multitargeted polypharmacological agents of natural origin for further pharmaceutical development and clinical application. Provided the favorable pharmacokinetics, safety, and efficacy, AA can be a promising agent or adjuvant along with currently used modern medicines with a pharmacological basis of its use in therapeutics.
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Affiliation(s)
- Mohamed Fizur Nagoor Meeran
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | | | - Kapil Suchal
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, India
| | - Charu Sharma
- Department of Internal Meicine, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Chandragouda R. Patil
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, India
| | - Shreesh K. Ojha
- Department of Pharmacology and Therapeutics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain, United Arab Emirates
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Welbat JU, Chaisawang P, Pannangrong W, Wigmore P. Neuroprotective Properties of Asiatic Acid against 5-Fluorouracil Chemotherapy in the Hippocampus in an Adult Rat Model. Nutrients 2018; 10:E1053. [PMID: 30096914 PMCID: PMC6115773 DOI: 10.3390/nu10081053] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 08/07/2018] [Accepted: 08/08/2018] [Indexed: 12/11/2022] Open
Abstract
5-fluorouracil or 5-FU (a chemotherapeutic medication) has been revealed to induce memory deficits in many cancer patients. Asiatic acid (AA) is a triterpenoid extract from Centella asiatica. This compound can ameliorate intracellular oxidative stress caused by chemotherapy drugs. Recent studies have shown that AA is capable of inhibiting neuronal generation and memory deficit produced by 5-FU chemotherapy. This study aimed to assess the molecular mechanisms of AA related to hippocampal neurogenesis and memory in rats receiving 5-FU. Male Sprague Dawley rats were given AA (30 mg/kg) orally and given 5-FU (25 mg/kg) by i.v. injection 5 times. Some rats were given AA for 20 days before and during 15-FU treatment (preventive), some received AA for 20 days after 5-FU treatment (recovery), and some underwent treatment with AA throughout the time of the experiment (throughout) for 40 days. Treatment with 5-FU caused significant reductions in Notch1, sex determining region Y-box 2 (SOX2), nestin, doublecortin (DCX), and nuclear factor erythroid 2-related factor 2 (Nrf2) levels within the hippocampus. In addition, 5-FU significantly increased p21 positive cell number in the subgranular zone (SGZ) and malondialdehyde (MDA) levels in the hippocampus. Administration with both AA and 5-FU in prevention and throughout was able to prevent decreases in Notch1 SOX2, nestin, DCX, and Nrf2 caused by 5-FU. Treatment with AA also led to decreases in p21 positive cells and MDA levels in the hippocampus. These findings exhibit that AA has the ability to counteract the down-regulation of neurogenesis within the hippocampus and memory deficits caused by 5-FU via inhibiting oxidative stress and increasing neuroprotective properties.
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Affiliation(s)
- Jariya Umka Welbat
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
- Neuroscience Research and Development Group, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Pornthip Chaisawang
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Wanassanun Pannangrong
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Peter Wigmore
- School of Life Sciences, Medical School, Queen's Medical Centre, Nottingham University, Nottingham NG7 2RD, UK.
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Beneficial Effects of Different Flavonoids on Vascular and Renal Function in L-NAME Hypertensive Rats. Nutrients 2018; 10:nu10040484. [PMID: 29652818 PMCID: PMC5946269 DOI: 10.3390/nu10040484] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/02/2018] [Accepted: 04/10/2018] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND we have evaluated the antihypertensive effect of several flavonoid extracts in a rat model of arterial hypertension caused by chronic administration (6 weeks) of the nitric oxide synthesis inhibitor, L-NAME. METHODS Sprague Dawley rats received L-NAME alone or L-NAME plus flavonoid-rich vegetal extracts (Lemon, Grapefruit + Bitter Orange, and Cocoa) or purified flavonoids (Apigenin and Diosmin) for 6 weeks. RESULTS L-NAME treatment resulted in a marked elevation of blood pressure, and treatment with Apigenin, Lemon Extract, and Grapefruit + Bitter Orange extracts significantly reduced the elevated blood pressure of these animals. Apigenin and some of these flavonoids also ameliorated nitric oxide-dependent and -independent aortic vasodilation and elevated nitrite urinary excretion. End-organ abnormalities such as cardiac infarcts, hyaline arteriopathy and fibrinoid necrosis in coronary arteries and aorta were improved by these treatments, reducing the end-organ vascular damage. CONCLUSIONS the flavonoids included in this study, specially apigenin, may be used as functional food ingredients with potential therapeutic benefit in arterial hypertension.
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Calabró V, Litterio MC, Fraga CG, Galleano M, Piotrkowski B. Effects of quercetin on heart nitric oxide metabolism in l-NAME treated rats. Arch Biochem Biophys 2018; 647:47-53. [PMID: 29621523 DOI: 10.1016/j.abb.2018.03.041] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 03/30/2018] [Accepted: 03/31/2018] [Indexed: 02/07/2023]
Abstract
This study investigated the effects of a quercetin-supplemented diet on the biochemical changes installed in the heart of NO-deficient rats in terms of oxidants production and NO bioavailability determinants. Sprague-Dawley rats were subjected to Nω-nitro-l-arginine methyl ester (l-NAME) treatment (360 mg/L l-NAME in the drinking water, 4 d) with or without supplementation with quercetin (4 g/kg diet). l-NAME administration led to increased blood pressure (BP) (30%), decreased nitric oxide synthase (NOS) activity (50%), and increases in NADPH oxidase (NOX)-dependent superoxide anion production (60%) and p47phox protein level (65%). The co-administration of quercetin prevented the increase in BP and the activation of NOX but did not modify the decrease in NOS activity caused by l-NAME. In addition, quercetin affected oxidative stress parameters as glutathione oxidation, and the activities of oxidant detoxifying enzymes superoxide dismutase, glutathione peroxidase, and catalase. Thus, quercetin administration counteracts l-NAME effects on NO bioavailability determinants in vivo, essentially through controlling NOX-mediated superoxide anion production.
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Affiliation(s)
- Valeria Calabró
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina
| | - María C Litterio
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina
| | - Cesar G Fraga
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina; Department of Nutrition, University of California, Davis, USA
| | - Monica Galleano
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina.
| | - Barbara Piotrkowski
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina
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30
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Maneesai P, Bunbupha S, Kukongviriyapan U, Senggunprai L, Kukongviriyapan V, Prachaney P, Pakdeechote P. Effect of asiatic acid on the Ang II-AT 1R-NADPH oxidase-NF-κB pathway in renovascular hypertensive rats. Naunyn Schmiedebergs Arch Pharmacol 2017; 390:1073-1083. [PMID: 28733880 DOI: 10.1007/s00210-017-1408-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/12/2017] [Indexed: 01/24/2023]
Abstract
Asiatic acid, a triterpenoid compound derived from Centella asiatica, has been demonstrated to have antioxidant and anti-inflammatory effects. The present study evaluated the effects of asiatic acid on hemodynamic alterations, renin-angiotensin system (RAS), oxidative stress, and inflammation in 2K-1C hypertensive rats. Renovascular hypertension was induced in male Sprague-Dawley rats and treated with vehicle, asiatic acid (30 mg/kg/day), or captopril (5 mg/kg/day) for 4 weeks. We observed that 2K-1C hypertensive rats exhibited hemodynamic alterations such as high blood pressure, heart rate, hindlimb vascular resistance, and low hindlimb blood flow. Signs of RAS activation, such as increased plasma angiotensin II and serum angiotensin-converting enzyme activity, enhanced AT1R protein expression, and suppressed AT2R expression was observed in 2K-1C hypertensive rats. Overproduction of vascular superoxide, high levels of plasma MDA, low levels of plasma nitric oxide metabolites (NOx), and upregulation of gp91phox protein expression were observed in hypertensive rats. Furthermore, inflammation was observed in hypertensive rats, as evidenced by increased plasma TNF-α, NF-κB, and phospho-NF-κB protein expression. Asiatic acid or captopril alleviated hemodynamic alterations, RAS activation, oxidative stress, and inflammation in 2K-1C hypertensive rats. These findings indicate that asiatic acid is an antihypertensive agent that ameliorates hemodynamic alterations in 2K-1C hypertensive rats. This effect may involve one or both of the following mechanisms: the direct effect of asiatic acid on RAS activation, oxidative stress and inflammation, and/or asiatic acid acting as an ACE inhibitor agent to inhibit the Ang II-AT1R-NADPH oxidase-NF-κB pathway.
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Affiliation(s)
- Putcharawipa Maneesai
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.,Cardiovascular Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Sarawoot Bunbupha
- Faculty of Medicine, Mahasarakham University, Maha Sarakham, 44000, Thailand
| | - Upa Kukongviriyapan
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand.,Cardiovascular Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Laddawan Senggunprai
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Veerapol Kukongviriyapan
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Parichat Prachaney
- Cardiovascular Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand.,Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Poungrat Pakdeechote
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand. .,Cardiovascular Research Group, Khon Kaen University, Khon Kaen, 40002, Thailand.
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31
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Wang Y, Zhang F, Liu Y, Yin S, Pang X, Li Z, Wei Z. Nebivolol alleviates aortic remodeling through eNOS upregulation and inhibition of oxidative stress in l-NAME-induced hypertensive rats. Clin Exp Hypertens 2017. [DOI: 10.1080/10641963.2017.1306539] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yan Wang
- Department of Pharmacology, ShanXi Medical University, Taiyuan, Shanxi Province, People’s Republic of China
| | - Fei Zhang
- Department of Pharmacology, ShanXi Medical University, Taiyuan, Shanxi Province, People’s Republic of China
| | - Yu Liu
- Department of Pharmacology, ShanXi Medical University, Taiyuan, Shanxi Province, People’s Republic of China
| | - Sha Yin
- Department of Pharmacology, ShanXi Medical University, Taiyuan, Shanxi Province, People’s Republic of China
| | - Xuefen Pang
- Department of Physiology, ShanXi Medical University, Taiyuan, Shanxi Province, People’s Republic of China
| | - Zhidong Li
- Department of Pharmacology, ShanXi Medical University, Taiyuan, Shanxi Province, People’s Republic of China
| | - Zehui Wei
- Department of Pharmacology, ShanXi Medical University, Taiyuan, Shanxi Province, People’s Republic of China
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32
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Mechanisms underlying the cardiac antifibrotic effects of losartan metabolites. Sci Rep 2017; 7:41865. [PMID: 28157237 PMCID: PMC5291109 DOI: 10.1038/srep41865] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 12/23/2016] [Indexed: 12/31/2022] Open
Abstract
Excessive myocardial collagen deposition and cross-linking (CCL), a process regulated by lysyl oxidase (LOX), determines left ventricular (LV) stiffness and dysfunction. The angiotensin II antagonist losartan, metabolized to the EXP3179 and EXP3174 metabolites, reduces myocardial fibrosis and LV stiffness in hypertensive patients. Our aim was to investigate the differential influence of losartan metabolites on myocardial LOX and CCL in an experimental model of hypertension with myocardial fibrosis, and whether EXP3179 and EXP3174 modify LOX expression and activity in fibroblasts. In rats treated with NG-nitro-L-arginine methyl ester (L-NAME), administration of EXP3179 fully prevented LOX, CCL and connective tissue growth factor (CTGF) increase, as well as fibrosis, without normalization of blood pressure (BP). In contrast, administration of EXP3174 normalized BP and attenuated fibrosis but did not modify LOX, CCL and CTGF. In TGF-β1-stimulated fibroblasts, EXP3179 inhibited CTGF and LOX expression and activity with lower IC50 values than EXP3174. Our results indicate that, despite a lower antihypertensive effect, EXP3179 shows higher anti-fibrotic efficacy than EXP3174, likely through its ability to prevent the excess of LOX and CCL. It is suggested that the anti-fibrotic effect of EXP3179 may be partially mediated by the blockade of CTGF-induced LOX in fibroblasts.
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33
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Nazeer SS, Samrid R, Perez-Guaita D, Prachaney P, Chaisiwamongkol K, Pakdeechote P, Chaiyarit P, Wood BR. Monitoring the biochemical alterations in hypertension affected salivary gland tissues using Fourier transform infrared hyperspectral imaging. Analyst 2017; 142:1269-1275. [DOI: 10.1039/c6an02074g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
FTIR imaging shows biochemical differences between salivary glands from control and hypertensive rats.
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Affiliation(s)
- Shaiju S. Nazeer
- Centre for Biospectroscopy
- School of Chemistry
- Monash University
- VIC 3800
- Australia
| | - Rarinthorn Samrid
- Department of Anatomy
- Faculty of Medicine
- Khon Kaen University
- Thailand
| | - David Perez-Guaita
- Centre for Biospectroscopy
- School of Chemistry
- Monash University
- VIC 3800
- Australia
| | | | | | | | - Ponlatham Chaiyarit
- Department of Oral Diagnosis
- Faculty of Dentistry
- Khon Kaen University
- Thailand
- Research Group of Chronic Inflammatory Oral Diseases and Systemic Diseases Associated with Oral Health
| | - Bayden R. Wood
- Centre for Biospectroscopy
- School of Chemistry
- Monash University
- VIC 3800
- Australia
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34
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Venditti A, Frezza C, Celona D, Sciubba F, Foddai S, Delfini M, Serafini M, Bianco A. Phytochemical comparison with quantitative analysis between two flower phenotypes of Mentha aquatica L.: pink-violet and white. AIMS MOLECULAR SCIENCE 2017. [DOI: 10.3934/molsci.2017.3.288] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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35
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Diuretic effect of extracts, fractions and two compounds 2α,3β,19α-trihydroxy-urs-12-en-28-oic acid and 5-hydroxy-3,6,7,8,4′-pentamethoxyflavone from Rubus rosaefolius Sm. (Rosaceae) leaves in rats. Naunyn Schmiedebergs Arch Pharmacol 2016; 390:351-360. [DOI: 10.1007/s00210-016-1333-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 12/12/2016] [Indexed: 02/01/2023]
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36
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Shang P, Liu W, Liu T, Zhang Y, Mu F, Zhu Z, Liang L, Zhai X, Ding Y, Li Y, Wen A. Acetyl-11-Keto-β-Boswellic Acid Attenuates Prooxidant and Profibrotic Mechanisms Involving Transforming Growth Factor-β1, and Improves Vascular Remodeling in Spontaneously Hypertensive Rats. Sci Rep 2016; 6:39809. [PMID: 28009003 PMCID: PMC5180224 DOI: 10.1038/srep39809] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 11/25/2016] [Indexed: 12/14/2022] Open
Abstract
Vascular remodeling is an important complication of hypertension with oxidative stress-related profibrotic pathways involved. The transforming growth factor β1 (TGF-β1) has been shown to be a potential target of vasoprotection, and has multiple roles in vascular remodeling. Acetyl-11-Keto-β-Boswellic Acid (AKBA) is one of the active principles of Boswellic acids, and shows antioxidant activity in many diseases. The study is to determine effects of AKBA on systemic oxidative stress of hypertension and vascular remodeling. In the experiments, spontaneously hypertensive rats (SHR) were used. And in vitro, fibroblast was pretreated with AKBA before Ang II stimuli. In the results, treatment of AKBA markedly reduced oxidative stress, and decreased vascular remodeling by restoring vascular wall parameters and improving vascular reactivity. AKBA dramatically reduced TGF-β1 and Smad3 expression, as shown in immunofluorescence and immunohistochemistry. In cultured fibroblast, AKBA decreased intracellular ROS levels. Cell viability and proliferation, as well as migration were inhibited by AKBA. Additionally, treatment of AKBA significantly decreased TGF-β1 secretion in culture supernatant. Expression of TGF-β1, Smad3, P-Smad3 and Smad7 were also decreased by AKBA in fibroblast. In conclusion, AKBA is able to attenuate oxidative stress and profibrotic mechanisms, and improve vascular remodeling in hypertension through TGF-β1/Smad3 pathway.
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Affiliation(s)
- Peijin Shang
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Wenxing Liu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Tianlong Liu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Yikai Zhang
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Fei Mu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Zhihui Zhu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Lingfei Liang
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Xiaohu Zhai
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Yi Ding
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Yuwen Li
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
| | - Aidong Wen
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi’an, 710032, China
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Ren L, Cao QX, Zhai FR, Yang SQ, Zhang HX. Asiatic acid exerts anticancer potential in human ovarian cancer cells via suppression of PI3K/Akt/mTOR signalling. PHARMACEUTICAL BIOLOGY 2016; 54:2377-2382. [PMID: 26984021 DOI: 10.3109/13880209.2016.1156709] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Context Asiatic acid, a triterpenoid compound extracted from the tropical medicinal plant Centella asiatica (Family: Apiaceae), has exhibited various biological activities. Objective This study was performed to investigate the cytotoxic effects of asiatic acid on human ovarian cancer cells. Materials and methods SKOV3 and OVCAR-3 ovarian cancer cells were exposed to different concentrations of asiatic acid (10-100 μg/mL) for 72 or 48 h. Cell viability, colony formation, cell cycle distribution, apoptotic response were examined. Involvement of the phosphoinositide 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathway was tested. Results At the concentration of 40 μg/mL, asiatic acid caused about 50% reduction in the viability of ovarian cancer cells, but had little effect on the viability of normal human ovarian epithelial cells. Asiatic acid at 10 μg/mL reduced colony formation of ovarian cancer cells by 25-30%. Asiatic acid-treated cells showed a cell cycle arrest at the G0/G1 phase and 7- to 10-fold increase in apoptosis. The phosphorylation levels of PI3K, Akt and mTOR were remarkably lower in asiatic acid-treated cells. Overexpression of constitutively active Akt partially reversed the cytotoxic effects of asiatic acid, as evidenced by increased cell viability and colony formation. Furthermore, knockdown of Akt mimicked the growth-suppressive activity of asiatic acid. Discussion and conclusion These results provide first the evidence for the anticancer potential of asiatic acid in ovarian cancer cells, partially via inactivation of the PI3K/Akt/mTOR pathway. Asiatic acid may represent a potential therapeutic agent for ovarian cancer.
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Affiliation(s)
- Lu Ren
- a Department of Obstetrics and Gynecology , Huaihe Hospital Affiliated to Henan University , Kaifeng , P.R. China
| | - Qin-Xue Cao
- a Department of Obstetrics and Gynecology , Huaihe Hospital Affiliated to Henan University , Kaifeng , P.R. China
| | - Feng-Rong Zhai
- a Department of Obstetrics and Gynecology , Huaihe Hospital Affiliated to Henan University , Kaifeng , P.R. China
| | - Shao-Qin Yang
- a Department of Obstetrics and Gynecology , Huaihe Hospital Affiliated to Henan University , Kaifeng , P.R. China
| | - Hong-Xia Zhang
- a Department of Obstetrics and Gynecology , Huaihe Hospital Affiliated to Henan University , Kaifeng , P.R. China
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Jiang W, Li M, He F, Yao W, Bian Z, Wang X, Zhu L. Protective Effects of Asiatic Acid Against Spinal Cord Injury-Induced Acute Lung Injury in Rats. Inflammation 2016; 39:1853-1861. [DOI: 10.1007/s10753-016-0414-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Ma ZG, Dai J, Wei WY, Zhang WB, Xu SC, Liao HH, Yang Z, Tang QZ. Asiatic Acid Protects against Cardiac Hypertrophy through Activating AMPKα Signalling Pathway. Int J Biol Sci 2016; 12:861-71. [PMID: 27313499 PMCID: PMC4910604 DOI: 10.7150/ijbs.14213] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 03/23/2016] [Indexed: 12/22/2022] Open
Abstract
Background: AMPactivated protein kinase α (AMPKα) is closely involved in the process of cardiac hypertrophy. Asiatic acid (AA), a pentacyclic triterpene, was found to activate AMPKα in our preliminary experiment. However, its effects on the development of cardiac hypertrophy remain unclear. The present study was to determine whether AA could protect against cardiac hypertrophy. Methods: Mice subjected to aortic banding were orally given AA (10 or 30mg/kg) for 7 weeks. In the inhibitory experiment, Compound C was intraperitoneally injected for 3 weeks after surgery. Results: Our results showed that AA markedly inhibited hypertrophic responses induced by pressure overload or angiotensin II. AA also suppressed cardiac fibrosis in vivo and accumulation of collagen in vitro. The protective effects of AA were mediated by activation of AMPKα and inhibition of the mammalian target of rapamycin (mTOR) pathway and extracellular signal-regulated kinase (ERK) in vivo and in vitro. However, AA lost the protective effects after AMPKα inhibition or gene deficiency. Conclusions: AA protects against cardiac hypertrophy by activating AMPKα, and has the potential to be used for the treatment of heart failure.
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Affiliation(s)
- Zhen-Guo Ma
- 1. Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China;; 2. Cardiovascular Research Institute of Wuhan University, Wuhan, China
| | - Jia Dai
- 1. Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China;; 2. Cardiovascular Research Institute of Wuhan University, Wuhan, China
| | - Wen-Ying Wei
- 1. Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China;; 2. Cardiovascular Research Institute of Wuhan University, Wuhan, China
| | - Wen-Bin Zhang
- 1. Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China;; 2. Cardiovascular Research Institute of Wuhan University, Wuhan, China
| | - Si-Chi Xu
- 1. Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China;; 2. Cardiovascular Research Institute of Wuhan University, Wuhan, China
| | - Hai-Han Liao
- 1. Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China;; 2. Cardiovascular Research Institute of Wuhan University, Wuhan, China
| | - Zheng Yang
- 1. Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China;; 2. Cardiovascular Research Institute of Wuhan University, Wuhan, China
| | - Qi-Zhu Tang
- 1. Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China;; 2. Cardiovascular Research Institute of Wuhan University, Wuhan, China
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Li X, Li J, Li Z, Sang Y, Niu Y, Zhang Q, Ding H, Yin S. Fucoidan from Undaria pinnatifida prevents vascular dysfunction through PI3K/Akt/eNOS-dependent mechanisms in the l-NAME-induced hypertensive rat model. Food Funct 2016; 7:2398-408. [PMID: 27153123 DOI: 10.1039/c6fo00288a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Despite major scientific advances in its prevention, treatment and care, hypertension remains a serious condition that might lead to long-term complications such as heart disease and stroke. The great majority of forms of hypertension eventually result from an increased vasomotor tone activity that is regulated by endothelial NOS (eNOS) in vascular endothelium. Here, we examined the effect of fucoidan on eNOS activation in human umbilical vein endothelial cells (HUVECs). We also examined the effects of functional components of Undaria pinnatifida fucoidan on blood pressure and vascular function in eNOS inhibition-induced hypertensive rats in vivo. Our results suggest that fucoidan increased nitric oxide production by activating eNOS and Akt phosphorylation, which could be impaired by Akt or eNOS inhibitors. In the hypertensive rat model, treatment of fucoidan resulted in potent and persistent reduction of high blood pressure (BP) even after drug withdrawal. Our results showed that the mechanisms might involve protection against vascular structure damage, enhanced endothelium-independent vascular function and inhibition of abnormal proliferation of smooth muscle cells, which are mediated by the Akt-eNOS signaling pathway. Moreover, fucoidan treatment reduced the vascular inflammation and oxidative stress control caused by iNOS expression. Together, these results support a putative role of fucoidan in hypertension prevention and treatment.
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Affiliation(s)
- Xiaofei Li
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, China.
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Jiang W, Li M, He F, Bian Z, He Q, Wang X, Yao W, Zhu L. Neuroprotective effect of asiatic acid against spinal cord injury in rats. Life Sci 2016; 157:45-51. [PMID: 27153777 DOI: 10.1016/j.lfs.2016.05.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 05/01/2016] [Accepted: 05/02/2016] [Indexed: 12/12/2022]
Abstract
AIMS The present study investigated the therapeutic efficacy of asiatic acid (AA) on spinal cord injury (SCI) as well as the underlying mechanisms. MAIN METHODS Sprague-Dawley rats (n=150) were randomly assigned to five groups: sham, SCI, SCI+methylprednisolone (30mg/kg), SCI+AA (30mg/kg), and SCI+AA (75mg/kg). Motor function, histological changes, neutrophil infiltration, proinflammatory cytokine production, and oxidative stress as well as nuclear factor erythroid 2-related factor (Nrf)2, heme oxygenase (HO)-1, and nucleotide-binding domain-like receptor protein (NLRP)3 levels were evaluated. KEY FINDINGS AA treatment increased Basso, Beattie and Bresnahan scores and inclined plane test scores that were reduced by SCI. In addition, AA suppressed myeloperoxidase activity and reduced the levels of interleukin-1β, -18, and -6 and tumor necrosis factor-α as well as reactive oxygen species (ROS), H2O2, and malondialdehyde levels while increasing superoxide dismutase activity and glutathione production. AA treatment results in the upregulation in Nrf2/HO-1 levels and downregulation of NLRP3 inflammasome protein expression in SC tissue. SIGNIFICANCE AA protects against SCI via suppression of inflammation and oxidative stress. The underlying mechanism likely involves activation of Nrf2 and HO-1 and inhibition of ROS and the NLRP3 inflammasome pathway. AA has therapeutic potential for SCI treatment.
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Affiliation(s)
- Wu Jiang
- Department of Orthopedics, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Shangcheng District, Hangzhou 310006, China
| | - Maoqiang Li
- Department of Orthopedics, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Shangcheng District, Hangzhou 310006, China
| | - Fan He
- Department of Orthopedics, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Shangcheng District, Hangzhou 310006, China
| | - Zhenyu Bian
- Department of Orthopedics, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Shangcheng District, Hangzhou 310006, China
| | - Qifang He
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600 Yi Shan Road, Shanghai 200233, China
| | - Xuepeng Wang
- Department of Orthopedics, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Shangcheng District, Hangzhou 310006, China
| | - Wangxiang Yao
- Department of Orthopedics, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Shangcheng District, Hangzhou 310006, China
| | - Liulong Zhu
- Department of Orthopedics, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Shangcheng District, Hangzhou 310006, China.
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Synergistic Antihypertensive Effect of Carthamus tinctorius L. Extract and Captopril in L-NAME-Induced Hypertensive Rats via Restoration of eNOS and AT₁R Expression. Nutrients 2016; 8:122. [PMID: 26938552 PMCID: PMC4808852 DOI: 10.3390/nu8030122] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/19/2016] [Accepted: 02/23/2016] [Indexed: 12/11/2022] Open
Abstract
This study examined the effect of Carthamus tinctorius (CT) extract plus captopril treatment on blood pressure, vascular function, nitric oxide (NO) bioavailability, oxidative stress and renin-angiotensin system (RAS) in Nω-Nitro-l-arginine methyl ester (l-NAME)-induced hypertension. Rats were treated with l-NAME (40 mg/kg/day) for five weeks and given CT extract (75 or 150 or 300 or 500 mg/kg/day): captopril (5 mg/kg/day) or CT extract (300 mg/kg/day) plus captopril (5 mg/kg/day) for two consecutive weeks. CT extract reduced blood pressure dose-dependently, and the most effective dose was 300 mg/kg/day. l-NAME-induced hypertensive rats showed abnormalities including high blood pressure, high vascular resistance, impairment of acetylcholine-induced vasorelaxation in isolated aortic rings and mesenteric vascular beds, increased vascular superoxide production and plasma malondialdehyde levels, downregulation of eNOS, low level of plasma nitric oxide metabolites, upregulation of angiotensin II type 1 receptor and increased plasma angiotensin II. These abnormalities were alleviated by treatment with either CT extract or captopril. Combination treatment of CT extract and captopril normalized all the abnormalities found in hypertensive rats except endothelial dysfunction. These data indicate that there are synergistic antihypertensive effects of CT extract and captopril. These effects are likely mediated by their anti-oxidative properties and their inhibition of RAS.
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