1
|
Zhang F, Wang Y, Song X, Wen Y, Wang H, Zhang Y. The hydroxytyrosol-typed phenylpropanoidglycosides: A phenylpropanoid glycoside family with significant biological activity. Fitoterapia 2024; 178:106155. [PMID: 39089596 DOI: 10.1016/j.fitote.2024.106155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/28/2024] [Accepted: 07/28/2024] [Indexed: 08/04/2024]
Abstract
Hydroxytyrosol-typed phenylpropanoid glycosides (HPGs), composed of phenylethanol and various complex oligosaccharides, are widespread and abundant in different plant, and have a diverse range of biological activities. All HPGs reported previously have been isolated from natural sources, and most of them showed significant bioactivities, such as anti-inflamatory, anti-cancer, cytoprotection, neuro-protective effects, enzyme-inhibitory, anti-microbial effects, and cardiovascular activity. The goal of this review is to summarize the structures of HPGs reported over the past few decades, as well as to introduce their pharmacological effects. We also introduce the possible relationship between the structures of HPGs and their source plants, as well as the structure-activity relationships of some important activities. This review will serve as a resource for future research into this class of compounds, and demonstrate their potential value.
Collapse
Affiliation(s)
- Feixun Zhang
- College of Chemical Engineering, Department of Pharmaceutical Engineering, Northwest University, 1 Xuefu Road, Xi'an 710127, China
| | - Yiping Wang
- College of Chemical Engineering, Department of Pharmaceutical Engineering, Northwest University, 1 Xuefu Road, Xi'an 710127, China
| | - Xiaoping Song
- College of Chemical Engineering, Department of Pharmaceutical Engineering, Northwest University, 1 Xuefu Road, Xi'an 710127, China
| | - Yingming Wen
- College of Chemical Engineering, Department of Pharmaceutical Engineering, Northwest University, 1 Xuefu Road, Xi'an 710127, China
| | - Hong Wang
- College of Bioengineering, Beijing Polytechnic, No. 9 Liangshuihe 1st Street, Beijing 100176, China.
| | - Yanxin Zhang
- College of Chemical Engineering, Department of Pharmaceutical Engineering, Northwest University, 1 Xuefu Road, Xi'an 710127, China; Glycobiology and Glycotechnology Research center, College of Food Science and Technology, Northwest University, 229 Taibai North Road, Xi'an 710069, China; College of Life Sciences, Northwest University, 229 Taibai North Road, Xi'an 710069, China.
| |
Collapse
|
2
|
Zhao Y, Wang S, Pan J, Ma K. Verbascoside: A neuroprotective phenylethanoid glycosides with anti-depressive properties. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 120:155027. [PMID: 37657207 DOI: 10.1016/j.phymed.2023.155027] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/31/2023] [Accepted: 08/14/2023] [Indexed: 09/03/2023]
Abstract
BACKGROUND Verbascoside is a natural and water-soluble phenylethanoid glycoside found in several medicinal plants. It has extensive pharmacological effects, including antioxidative and antineoplastic actions, and a wide range of therapeutic effects against depression. PURPOSE In this review, we appraised preclinical and limited clinical evidence to fully discuss the anti-depression capacity of verbascoside and its holistic characteristics that can contribute to better management of depression in vivo and in vitro models, as well as, its toxicities and medicinal value. METHODS This review was prepared according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). A systematic review of 32 preclinical trials published up to April 2023, combined with a comprehensive bioinformatics analysis of network pharmacology and molecular docking, was conducted to elucidate the antidepressant mechanism of action of verbascoside. Studies included in the systematic review were obtained from 7 electronic databases: PubMed, Scopus, Web of Science, Cochrane, ResearchGate, ScienceDirect, and Google Scholar. RESULTS Studies on the antidepressant effects of verbascoside showed that various pharmacological mechanisms and pathways, such as modulating the levels of monoamine neurotransmitters, inhibiting hypothalamic-pituitary-adrenal (HPA) axis hyperfunction and promoting neuroprotection may be involved in the process of its action against depression. Verbascoside promotes dopamine (DA) biosynthesis by promoting the expression of tyrosine hydroxylase mRNA and protein, upregulates the expression of 5-hydroxytryptamine receptor 1B (5-HT1B), prominence protein, microtubule-associated protein 2 (MAP2), hemeoxygenase-1 (HO-1), SQSTM1, Recombinant Autophagy Related Protein 5 (ATG5) and Beclin-1, and decreases the expression of caspase-3 and a-synuclein, thus exerting antidepressant effects. We identified seven targets (CCL2, FOS, GABARAPL1, CA9, TYR, CA12, and SQSTM1) and three signaling pathways (glutathione metabolism, metabolism of xenobiotics by cytochrome P450, fluid shear stress and atherosclerosis) as potential molecular biological sites for verbascoside. CONCLUSIONS These findings provide strong evidence that verbascoside exerts its antidepressant effects through various pharmacological mechanisms. However, further multicentre clinical case-control and molecularly targeted fishing studies are required to confirm the clinical efficacy of verbascoside and its underlying direct targets.
Collapse
Affiliation(s)
- Yi Zhao
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Sijia Wang
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jin Pan
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Ke Ma
- Shandong Co-Innovation Center of Classic TCM Formula, Shandong University of Traditional Chinese Medicine, Jinan 250355, China.
| |
Collapse
|
3
|
Zhang H, Sun X, Qi H, Ma Q, Zhou Q, Wang W, Wang K. Pharmacological Inhibition of the Temperature-Sensitive and Ca2+-Permeable Transient Receptor Potential Vanilloid TRPV3 Channel by Natural Forsythoside B Attenuates Pruritus and Cytotoxicity of Keratinocytes. J Pharmacol Exp Ther 2018; 368:21-31. [DOI: 10.1124/jpet.118.254045] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 10/26/2018] [Indexed: 01/06/2023] Open
|
4
|
Anwar MA, Al Disi SS, Eid AH. Anti-Hypertensive Herbs and Their Mechanisms of Action: Part II. Front Pharmacol 2016; 7:50. [PMID: 27014064 PMCID: PMC4782109 DOI: 10.3389/fphar.2016.00050] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 02/22/2016] [Indexed: 01/20/2023] Open
Abstract
Traditional medicine has a history extending back to thousands of years, and during the intervening time, man has identified the healing properties of a very broad range of plants. Globally, the use of herbal therapies to treat and manage cardiovascular disease (CVD) is on the rise. This is the second part of our comprehensive review where we discuss the mechanisms of plants and herbs used for the treatment and management of high blood pressure. Similar to the first part, PubMed and ScienceDirect databases were utilized, and the following keywords and phrases were used as inclusion criteria: hypertension, high blood pressure, herbal medicine, complementary and alternative medicine, endothelial cells, nitric oxide (NO), vascular smooth muscle cell (VSMC) proliferation, hydrogen sulfide, nuclear factor kappa-B (NF-κB), oxidative stress, and epigenetics/epigenomics. Each of the aforementioned keywords was co-joined with plant or herb in question, and where possible with its constituent molecule(s). This part deals in particular with plants that are used, albeit less frequently, for the treatment and management of hypertension. We then discuss the interplay between herbs/prescription drugs and herbs/epigenetics in the context of this disease. The review then concludes with a recommendation for more rigorous, well-developed clinical trials to concretely determine the beneficial impact of herbs and plants on hypertension and a disease-free living.
Collapse
Affiliation(s)
- M Akhtar Anwar
- Department of Biological and Environmental Sciences, Qatar University Doha, Qatar
| | - Sara S Al Disi
- Department of Biological and Environmental Sciences, Qatar University Doha, Qatar
| | - Ali H Eid
- Department of Biological and Environmental Sciences, Qatar UniversityDoha, Qatar; Department of Pharmacology and Toxicology, Faculty of Medicine, American University of BeirutBeirut, Lebanon
| |
Collapse
|
5
|
Elberry AA, Harraz FM, Ghareib SA, Gabr SA, Nagy AA, Abdel-Sattar E. Methanolic extract of Marrubium vulgare ameliorates hyperglycemia and dyslipidemia in streptozotocin-induced diabetic rats. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.ijdm.2011.01.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
6
|
Cheng G, Zhao Y, Li H, Wu Y, Li X, Han Q, Dai C, Li Y. Forsythiaside attenuates lipopolysaccharide-induced inflammatory responses in the bursa of Fabricius of chickens by downregulating the NF-κB signaling pathway. Exp Ther Med 2013; 7:179-184. [PMID: 24348786 PMCID: PMC3861409 DOI: 10.3892/etm.2013.1378] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Accepted: 10/23/2013] [Indexed: 12/27/2022] Open
Abstract
Forsythiaside, a phenylethanoside product isolated from air-dried fruits of Forsythia suspensa, has been demonstrated to exhibit antioxidant, antibacterial and anti-inflammatory activities in vitro. However, its mechanism and the effects of lipopolysaccharide (LPS)-induced injury on the bursa of Fabricius (BF) of chickens are poorly understood. The present study aimed to investigate the anti-inflammatory effects of forsythiaside on LPS-induced acute inflammation. In addition, the potential molecular mechanisms of forsythiaside were analyzed in the BF, a special immune organ in chickens. Forty 15-day-old chickens were randomly divided into control, LPS and LPS plus forsythiaside (30 or 60 mg/kg) groups (n=10 for each group). In the LPS plus forsythiaside (30 or 60 mg/kg) groups, the chickens were orally administered with forsythiaside at doses of 30 and 60 mg/kg for seven days. At 21 days old, the chickens were intravenously injected with 200 μg/kg body weight LPS. Chickens in the control and LPS groups were only administered with vehicle or LPS, respectively, at day 21. At 3 h post-injection, the body temperature and nitric oxide (NO) levels were analyzed. In addition, the levels and mRNA expression of pro-inflammatory cytokines, including tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and IL-1β, and the mRNA expression of nuclear factor-κB (NF-κB), cyclooxygenase-2 (COX-2) and inducible NO synthase (iNOS), were examined in the BFs isolated from the chickens. The results revealed that forsythiaside was able to attenuate the LPS-induced inflammatory responses in the BFs of the chickens. The mechanisms by which forsythiaside exerted its anti-inflammatory effect were found to correlate with the inhibition of IL-6, IL-1β, TNF-α and COX-2 production, via the inactivation of NF-κB, indicating that the NF-κB-iNOS-NO signaling pathway may be important in this process.
Collapse
Affiliation(s)
- Guangdong Cheng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China ; College of Life Science, Jiamusi University, Jiamusi, Heilongjiang 154007, P.R. China
| | - Yulian Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - He Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Yue Wu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Xianxian Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Qiang Han
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Chongshan Dai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| | - Yanhua Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, P.R. China
| |
Collapse
|
7
|
Tandogan B, Guvenc A, Calis I, Ulusu NN. In Vitro Effects of Isoorientin, Forsythoside B, and Verbascoside on Bovine Kidney Cortex Glutathione Reductase. INT J CHEM KINET 2013. [DOI: 10.1002/kin.20792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Berivan Tandogan
- Department of Biochemistry, Faculty of Medicine; Hacettepe University; 06100 Ankara Turkey
| | - Ayşegül Guvenc
- Department of Pharmaceutical Botany, Faculty of Pharmacy; Ankara University; 06100 Ankara Turkey
| | - Ihsan Calis
- Department of Pharmacognosy, Faculty of Pharmacy; Near East University; Lefkosa TRNC
| | - Nuriye Nuray Ulusu
- Department of Biochemistry, Faculty of Medicine; Hacettepe University; 06100 Ankara Turkey
| |
Collapse
|
8
|
Sun Y, Chen D, Cao L, Zhang R, Zhou J, Chen H, Li Y, Li M, Cao J, Wang Z. MiR-490-3p modulates the proliferation of vascular smooth muscle cells induced by ox-LDL through targeting PAPP-A. Cardiovasc Res 2013; 100:272-9. [DOI: 10.1093/cvr/cvt172] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
9
|
He J, Hu XP, Zeng Y, Li Y, Wu HQ, Qiu RZ, Ma WJ, Li T, Li CY, He ZD. Advanced research on acteoside for chemistry and bioactivities. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2011; 13:449-64. [PMID: 21534045 DOI: 10.1080/10286020.2011.568940] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Acteoside is one kind of phenylethanoid glycoside, which has shown a lot of biological activities. This article reviewed the study progress of acteoside, such as distribution, preparation, identification, and bioactivities.
Collapse
Affiliation(s)
- Jiang He
- School of Medicine, College of Life Science, School of Chemistry and Chemical Engineering, Shenzhen University, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Neuroprotective efficacy and therapeutic window of Forsythoside B: In a rat model of cerebral ischemia and reperfusion injury. Eur J Pharmacol 2010; 640:75-81. [DOI: 10.1016/j.ejphar.2010.04.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2009] [Revised: 03/31/2010] [Accepted: 04/23/2010] [Indexed: 11/15/2022]
|
11
|
Jiang WL, Fu FH, Xu BM, Tian JW, Zhu HB. Cardioprotection with forsythoside B in rat myocardial ischemia-reperfusion injury: relation to inflammation response. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2010; 17:635-639. [PMID: 19959348 DOI: 10.1016/j.phymed.2009.10.017] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Revised: 09/28/2009] [Accepted: 10/13/2009] [Indexed: 05/28/2023]
Abstract
The present study was undertaken to examine the effect of forsythoside B (FB) on rat myocardial ischemia-reperfusion (I/R) model and elucidate the potential mechanism. Left ventricular systolic pressure (LVSP) and +/-dp/dt(max) were detected. Blood samples were collected to determine serum levels of troponin T (Tn-T), TNF-alpha and IL-6. Hearts were harvested to assess histopathological change and infarct size, determine content of MDA, myeloperoxidase (MPO), SOD and GPx activities, analyze expression of high-mobility group box 1 (HMGB1), phosphor-I kappaB-alpha and phosphor-nuclear factor kappaB (NF-kappaB) in ischemic myocardial tissue by Western blot. Compared with control group, rats treatment with FB showed a significant recovery in myocardial function with improvement of LVSP and +/-dp/dt(max). The myocardial infarct volume, serum levels of Tn-T, TNF-alpha and IL-6, content of MDA and MPO activity in myocardial tissue were all reduced, protein expression of HMGB1, phosphor-I kappaB-alpha and phosphor-NF-kappaB were down-regulated, while attenuated the decrease of SOD and GPx activities. Besides, the infiltration of polymorph nuclear leukocytes (PMNs) and histopathological damages in myocardium were decreased in FB treated groups. These findings suggested that FB rescued cardiac function from I/R injury by limiting inflammation response and its antioxidant properties.
Collapse
Affiliation(s)
- W-L Jiang
- School of Pharmacy, Yantai University, 32# Qingquan Road, Laishan District, Yantai 264003, PR China
| | | | | | | | | |
Collapse
|
12
|
The Role of PPARs in the Endothelium: Implications for Cancer Therapy. PPAR Res 2008; 2008:904251. [PMID: 19043612 PMCID: PMC2586817 DOI: 10.1155/2008/904251] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2008] [Revised: 07/28/2008] [Accepted: 09/09/2008] [Indexed: 12/18/2022] Open
Abstract
The growth and metastasis of cancers intimately involve the vasculature and in particular the endothelial cell layer. Tumours require new blood vessel formation via angiogenesis to support growth. In addition, inflammation, coagulation, and platelet activation are common signals in the growth and metastasis of tumour cells. The endothelium plays a central role in the homeostatic control of inflammatory cell recruitment, regulating platelet activation and coagulation pathways. PPARalpha, -beta/delta, and -gamma are all expressed in endothelial cells. This review will discuss the roles of PPARs in endothelial cells in relation to angiogenesis, inflammation, coagulation, and platelet control pathways. In particular, we will discuss the recent evidence that supports the hypothesis that PPARalpha and PPARgamma are antiangiogenic receptors, while PPARbeta/delta is proangiogenic.
Collapse
|
13
|
Berrougui H, Isabelle M, Cherki M, Khalil A. Marrubium vulgare extract inhibits human-LDL oxidation and enhances HDL-mediated cholesterol efflux in THP-1 macrophage. Life Sci 2006; 80:105-12. [PMID: 17045616 DOI: 10.1016/j.lfs.2006.08.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2006] [Revised: 08/18/2006] [Accepted: 08/21/2006] [Indexed: 12/20/2022]
Abstract
The objective of the present study was to elucidate the beneficial properties of aqueous extracts of Marrubium vulgare (AEM) towards cardiovascular disease by protecting human-LDL against lipid peroxidation and promoting HDL-mediated cholesterol efflux. Human-LDL were oxidised by incubation with CuSO(4) in the presence of increased concentrations of AEM (0-100 microg/ml). LDL lipid peroxidation was evaluated by conjugated diene formation, vitamin E disappearance as well as LDL-electrophoretic mobility. HDL-mediated cholesterol efflux assay was carried out in human THP-1 macrophages. Incubation of LDL with AEM significantly prolonged the lag phase (P=0.014), lowered the progression rate of lipid peroxidation (P=0.004), reduced the disappearance of vitamin E and the electrophoretic mobility in a dose-dependent manner. Also, incubation of HDL with AEM significantly increased HDL-mediated cholesterol efflux from THP-1 macrophages implicating an independent ATP binding cassette A1 (ABCA1) pathways. Our findings suggest that M. vulgare provides a source of natural antioxidants, which inhibit LDL oxidation and enhance reverse cholesterol transport and thus can prevent cardiovascular diseases development. These antioxidant properties increase the anti-atherogenic potential of HDL.
Collapse
|
14
|
Zhou FY, She J, Wang YG. Synthesis of a benzyl-protected analog of arenarioside, a trisaccharide phenylpropanoid glycoside. Carbohydr Res 2006; 341:2469-77. [PMID: 16949060 DOI: 10.1016/j.carres.2006.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2006] [Revised: 08/08/2006] [Accepted: 08/09/2006] [Indexed: 11/28/2022]
Abstract
A benzyl-protected analog of the phenylpropanoid glycoside arenarioside, (4-benzyloxyphenyl)ethyl alpha-L-rhamnopyranosyl-(1-->3)-4-O-[(E)-3,4-di-O-benzyl-caffeoyl]-[beta-D-xylopyranosyl-(1-->6)]-beta-D-glucopyranoside (22), was synthesized through two different routes from D-glucose. This is the first approach on the synthesis of a trisaccharide phenylpropanoid glycoside, although the benzyl-protecting group in the backbone of the arenarioside analog could not be removed by conventional debenzylation procedures.
Collapse
Affiliation(s)
- Feng-Yan Zhou
- Department of Chemistry, Zhejiang University, Hangzhou 310027, PR China
| | | | | |
Collapse
|
15
|
Zamble A, Carpentier M, Kandoussi A, Sahpaz S, Petrault O, Ouk T, Hennuyer N, Fruchart JC, Staels B, Bordet R, Duriez P, Bailleul F, Martin-Nizard F. Paullinia pinnata Extracts Rich in Polyphenols Promote Vascular Relaxation via Endothelium-dependent Mechanisms. J Cardiovasc Pharmacol 2006; 47:599-608. [PMID: 16680075 DOI: 10.1097/01.fjc.0000211734.53798.1d] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Paullinia pinnata L. (Sapindaceae) is an African tropical plant whose roots and leaves are used in traditional medicine for many purposes, especially for erectile dysfunction, but its action mechanism is unknown. P. pinnata root and leaf methanolic extracts are rich in phenolic compounds. This study shows that both extracts are highly antioxidative and induce a slight transcriptional activity of peroxisome proliferator activated receptor-alpha. They also increased and decreased endothelial nitric oxide synthase and endothelin-1 mRNA levels in bovine aortic endothelial cells, respectively. In this study P. pinnata methanolic extracts in cumulative doses elicited in a dose-dependent manner the relaxation of phenylephrine precontracted isolated rat aortic rings. N-nitro-L-arginine methyl ester significantly attenuated the capacity of both extracts to induce arterial relaxation, indicating that this arterial relaxation was mediated by endothelial nitric oxide release. It could be suggested that the arterial relaxation induced by both extracts could be mainly linked to their capacities to inhibit nitric oxide oxidation through their antioxidant properties.
Collapse
Affiliation(s)
- Alexis Zamble
- Laboratoire de Pharmacognosie, Faculté de Pharmacie, Université de Lille 2, Lille, France
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|