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Stefanello N, Spanevello RM, Passamonti S, Porciúncula L, Bonan CD, Olabiyi AA, Teixeira da Rocha JB, Assmann CE, Morsch VM, Schetinger MRC. Coffee, caffeine, chlorogenic acid, and the purinergic system. Food Chem Toxicol 2018; 123:298-313. [PMID: 30291944 DOI: 10.1016/j.fct.2018.10.005] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 09/29/2018] [Accepted: 10/02/2018] [Indexed: 12/14/2022]
Abstract
Coffee is a drink prepared from roasted coffee beans and is lauded for its aroma and flavour. It is the third most popular beverage in the world. This beverage is known by its stimulant effect associated with the presence of methylxanthines. Caffeine, a purine-like molecule (1,3,7 trymetylxantine), is the most important bioactive compound in coffee, among others such as chlorogenic acid (CGA), diterpenes, and trigonelline. CGA is a phenolic acid with biological properties as antioxidant, anti-inflammatory, neuroprotector, hypolipidemic, and hypoglicemic. Purinergic system plays a key role inneuromodulation and homeostasis. Extracellular ATP, other nucleotides and adenosine are signalling molecules that act through their specific receptors, namely purinoceptors, P1 for nucleosides and P2 for nucleotides. They regulate many pathological processes, since adenosine, for instance, can limit the damage caused by ATP in the excitotoxicity from the neuronal cells. The primary purpose of this review is to discuss the effects of coffee, caffeine, and CGA on the purinergic system. This review focuses on the relationship/interplay between coffee, caffeine, CGA, and adenosine, and their effects on ectonucleotidases activities as well as on the modulation of P1 and P2 receptors from central nervous system and also in peripheral tissue.
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Affiliation(s)
- Naiara Stefanello
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil.
| | - Roselia Maria Spanevello
- Programa de Pós Graduação em Bioquímica e Bioprospecção: Centro de Ciências Farmacêuticas, Químicas e de Alimentos, UFPel, Campus Capão do Leão 96010-900, Pelotas, RS, Brazil
| | - Sabina Passamonti
- Dipartimento di Scienze della Vita, Università degli Studi di Trieste, via L. Giorgieri 1, 34127, Trieste, Italy
| | - Lisiane Porciúncula
- Departamento de Bioquímica, UFRGS, 90040-060, Porto Alegre, Rio Grande do Sul, Brazil
| | - Carla Denise Bonan
- Programa de Pós-graduação em Biologia Celular e Molecular Faculdade de Biociências da Pontifícia Universidade Católica do Rio Grande do Sul, PUCRS, Porto Alegre, RS, Brazil
| | | | - João Batista Teixeira da Rocha
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil
| | - Charles Elias Assmann
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil
| | - Vera Maria Morsch
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil
| | - Maria Rosa Chitolina Schetinger
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil.
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Przygodzki T, Wolska N, Talar M, Polak D, Gapinska M, Watala C. Comparison of different microscopy approaches to quantification of inhibitory effect on thrombus formation under flow conditions by the example of adenosine receptor agonist HE-NECA. J Pharmacol Toxicol Methods 2018; 94:94-104. [PMID: 30031827 DOI: 10.1016/j.vascn.2018.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/18/2018] [Accepted: 07/17/2018] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Thrombus formation in vitro in flow conditions and its visualization and quantification with the use of microscopy are widely utilized to evaluate activity of compounds with a potential antithrombotic activity. Visualization and quantification of thrombi can be performed with the use of wide-field or confocal microscopy. Acquiring reliable numerical data from wide-field microscopy images of objects which have a complex three-dimensional structure is strongly influenced by the methods used for image analysis. This can be a possible source of inaccuracy in assessment of antithrombotic activity of a tested substance. We aimed to verify how different approaches to the quantification of wide-field images can affect the evaluation of an antiplatelet effect of a tested substance. METHODS We compared three algorithms of image analysis to evaluate an effect of 2-hexynyl-5'-ethylcarboxamidoadenosine (HE-NECA), a compound of a moderate antiplatelet activity on thrombus formation, and of abciximab - a potent antiplatelet compound. Also, we studied how the results obtained in a wide-field imaging correspond to those obtained by means of confocal imaging. RESULTS Three algorithms for analysis of wide-field images showed antiplatelet effect of HE-NECA or abciximab. Absolute values of thrombus area and outcomes of the evaluation of inhibition efficacy of HE-NECA were significantly different between the algorithms. Analysis of volumes and heights of thrombi obtained by confocal imaging confirmed inhibitory effect of HE-NECA, but the evaluated levels of inhibition were significantly different from that obtained by wide-field imaging. DISCUSSION We conclude that wide-field imaging provides reliable qualitative data on an inhibitory effect on thrombus formation, despite differences which can emerge from various approaches to image analysis. However, quantitative evaluation and comparison of the efficacy of inhibitors on the basis of total area occupied by thrombi obtained by wide-field microscopy should be made with caution. To obtain a reliable quantitative assessment of the effect of a tested compound on thrombus structure the use of confocal microscopy is inevitable.
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Affiliation(s)
- Tomasz Przygodzki
- Department of Haemostatic Disorders, Chair of Biomedical Sciences, Faculty of Health Sciences, Medical University of Lodz, 6/8 Mazowiecka Street, 92-235 Lodz, Poland.
| | - Nina Wolska
- Department of Haemostatic Disorders, Chair of Biomedical Sciences, Faculty of Health Sciences, Medical University of Lodz, 6/8 Mazowiecka Street, 92-235 Lodz, Poland
| | - Marcin Talar
- Department of Haemostatic Disorders, Chair of Biomedical Sciences, Faculty of Health Sciences, Medical University of Lodz, 6/8 Mazowiecka Street, 92-235 Lodz, Poland
| | - Dawid Polak
- Department of Haemostatic Disorders, Chair of Biomedical Sciences, Faculty of Health Sciences, Medical University of Lodz, 6/8 Mazowiecka Street, 92-235 Lodz, Poland
| | - Magdalena Gapinska
- Laboratory of Microscopic Imaging and Specialized Biological Techniques, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha Street, 90-237 Lodz, Poland
| | - Cezary Watala
- Department of Haemostatic Disorders, Chair of Biomedical Sciences, Faculty of Health Sciences, Medical University of Lodz, 6/8 Mazowiecka Street, 92-235 Lodz, Poland
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Irfan M, Jeong D, Saba E, Kwon HW, Shin JH, Jeon BR, Kim S, Kim SD, Lee DH, Nah SY, Rhee MH. Gintonin modulates platelet function and inhibits thrombus formation via impaired glycoprotein VI signaling. Platelets 2018; 30:589-598. [PMID: 29870296 DOI: 10.1080/09537104.2018.1479033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Panax ginseng (P. ginseng), one of the most valuable medicinal plants, is known for its healing and immunobooster properties and has been widely used in folk medicine against cardiovascular diseases, including stroke and heart attack. In this study, we explored the anti-platelet activity of gintonin (a recently discovered non-saponin fraction of ginseng) against agonist-induced platelet activation. In vitro effects of gintonin on agonist-induced human and rat platelet aggregation, granule secretion, integrin αIIbβ3 activation, and intracellular calcium ion ([Ca2+]i) mobilization were examined. Western blot analysis and immunoprecipitation techniques were used to estimate the expression of mitogen-activated protein kinases (MAPKs) and phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) and interaction of glycoprotein VI (GPVI) signaling pathway molecules such as Src family kinases (SFK), tyrosine kinase Syk, and PLCγ2. In vivo effects were studied using acute pulmonary thromboembolism model in mice. Gintonin remarkably inhibited collagen-induced platelet aggregation and suppressed granule secretion, [Ca2+]i mobilization, and fibrinogen binding to integrin αIIbβ3 in a dose-dependent manner and clot retraction. Gintonin attenuated the activation of MAPK molecules and PI3K/Akt pathway. It also inhibited SFK, Syk, and PLCγ2 activation and protected mice from thrombosis. Gintonin inhibited agonist-induced platelet activation and thrombus formation through impairment in GPVI signaling molecules, including activation of SFK, Syk, PLCγ2, MAPK, and PI3K/Akt; suggesting its therapeutic potential against platelet related CVD.
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Affiliation(s)
- Muhammad Irfan
- a Laboratory of Physiology and Cell Signaling, College of Veterinary Medicine , Kyungpook National University , Daegu , Republic of Korea
| | - Dahye Jeong
- a Laboratory of Physiology and Cell Signaling, College of Veterinary Medicine , Kyungpook National University , Daegu , Republic of Korea
| | - Evelyn Saba
- a Laboratory of Physiology and Cell Signaling, College of Veterinary Medicine , Kyungpook National University , Daegu , Republic of Korea
| | - Hyuk-Woo Kwon
- b Department of Biomedical Laboratory Science , Far East University , Eumseong , Korea
| | - Jung-Hae Shin
- c Department of Biomedical Laboratory Science, College of Biomedical Science and Engineering , Inje University , Gyungnam , Korea
| | - Bo-Ra Jeon
- a Laboratory of Physiology and Cell Signaling, College of Veterinary Medicine , Kyungpook National University , Daegu , Republic of Korea
| | - Suk Kim
- d Institute of Animal Medicine, College of Veterinary Medicine , Gyeongsang National University , Jinju , Republic of Korea
| | - Sung-Dae Kim
- a Laboratory of Physiology and Cell Signaling, College of Veterinary Medicine , Kyungpook National University , Daegu , Republic of Korea
| | - Dong-Ha Lee
- e Department of Biomedical Laboratory Science , Korea Nazarene University , Cheonan, Chungnam , Republic of Korea.,f Molecular Diagnostics Research Institute , Namseoul University , Cheonan, Chungnam , Republic of Korea
| | - Seung-Yeol Nah
- g Ginsentology Research Laboratory, Department of Physiology, College of Veterinary Medicine , Konkuk University , Seoul , Republic of Korea
| | - Man Hee Rhee
- a Laboratory of Physiology and Cell Signaling, College of Veterinary Medicine , Kyungpook National University , Daegu , Republic of Korea
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Anticoagulant mechanism, pharmacological activity, and assessment of preclinical safety of a novel fibrin(ogen)olytic serine protease from leaves of Leucas indica. Sci Rep 2018; 8:6210. [PMID: 29670183 PMCID: PMC5906637 DOI: 10.1038/s41598-018-24422-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 03/26/2018] [Indexed: 01/03/2023] Open
Abstract
The harnessing of medicinal plants containing a plethora of bioactive molecules may lead to the discovery of novel, potent and safe therapeutic agents to treat thrombosis-associated cardiovascular diseases. A 35 kDa (m/z 34747.5230) serine protease (lunathrombase) showing fibrin(ogen)olytic activity and devoid of N- and O- linked oligosaccharides was purified from an extract of aqueous leaves from L. indica. The LC-MS/MS analysis, de novo sequencing, secondary structure, and amino acid composition determination suggested the enzyme’s novel characteristic. Lunathrombase is an αβ-fibrinogenase, demonstrating anticoagulant activity with its dual inhibition of thrombin and FXa by a non-enzymatic mechanism. Spectrofluorometric and isothermal calorimetric analyses revealed the binding of lunathrombase to fibrinogen, thrombin, and/or FXa with the generation of endothermic heat. It inhibited collagen/ADP/arachidonic acid-induced mammalian platelet aggregation, and demonstrated antiplatelet activity via COX-1 inhibition and the upregulation of the cAMP level. Lunathrombase showed in vitro thrombolytic activity and was not inhibited by endogenous protease inhibitors α2 macroglobulin and antiplasmin. Lunathrombase was non-cytotoxic to mammalian cells, non-hemolytic, and demonstrated dose-dependent (0.125–0.5 mg/kg) in vivo anticoagulant and plasma defibrinogenation activities in a rodent model. Lunathrombase (10 mg/kg) did not show toxicity or adverse pharmacological effects in treated animals.
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55
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Kaneda T, Sasaki N, Urakawa N, Shimizu K. Effects of chlorogenic acid on carbachol-induced contraction of mouse urinary bladder. J Pharmacol Sci 2017; 136:26-30. [PMID: 29277372 DOI: 10.1016/j.jphs.2017.12.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/19/2017] [Accepted: 12/06/2017] [Indexed: 12/13/2022] Open
Abstract
Chlorogenic acid (CGA) is a polyphenol found in coffee and medicinal herbs such as Lonicera japonica. In this study, the effect of CGA-induced relaxation on carbachol (CCh)-induced contraction of mouse urinary bladder was investigated. CGA (30-300 μg/ml) inhibited CCh- or U46619-induced contraction in a concentration-dependent manner. SQ22536 (adenylyl cyclase inhibitor) recovered CGA-induced relaxation of CCh-induced contraction; however, ODQ (guanylyl cyclase inhibitor) did not have the same effect. In addition, 3-isobutyl-1-methylxanthine (IBMX) enhanced CGA-induced relaxation; however, forskolin or sodium nitroprusside did not have the same effect. Moreover, Ro 20-1724, a selective phosphodiesterase (PDE) 4 inhibitor, enhanced CGA-induced relaxation, but vardenafil, a selective PDE5 inhibitor, did not have the same effect. In the presence of CCh, CGA increased cyclic adenosine monophosphate (cAMP) level, whereas SQ22536 inhibited the increase of cAMP levels. Moreover, higher cAMP levels were obtained with CGA plus IBMX treatment than the total cAMP levels obtained with separate CGA and IBMX treatments. In conclusion, these results suggest that CGA inhibited CCh-induced contraction of mouse urinary bladder by partly increasing cAMP levels via adenylyl cyclase activation.
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Affiliation(s)
- Takeharu Kaneda
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 7-1 Kyonan-cho 1-chome, Musashino, Tokyo 180-8602, Japan.
| | - Noriyasu Sasaki
- Laboratory of Veterinary Biochemistry, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 7-1 Kyonan-cho 1-chome, Musashino, Tokyo 180-8602, Japan
| | - Norimoto Urakawa
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 7-1 Kyonan-cho 1-chome, Musashino, Tokyo 180-8602, Japan
| | - Kazumasa Shimizu
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Nippon Veterinary and Life Science University, 7-1 Kyonan-cho 1-chome, Musashino, Tokyo 180-8602, Japan
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Granata G, Consoli GML, Lo Nigro R, Geraci C. Hydroxycinnamic acids loaded in lipid-core nanocapsules. Food Chem 2017; 245:551-556. [PMID: 29287408 DOI: 10.1016/j.foodchem.2017.10.106] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 10/19/2017] [Accepted: 10/19/2017] [Indexed: 12/30/2022]
Abstract
Ferulic, caffeic, sinapic, and coumaric acids, belonging to the class of hydroxycinnamic acids (HAs), are bioactive polyphenols widespread in the plant kingdom and present in the human diet. Due to their biological properties and effects in the prevention of various diseases associated with oxidative stress, HAs can be exploited for attractive nutraceutical applications. Starting from this and in order to increase bioaccessibility, we encapsulated HAs in lipid-core nanocapsules (NCs) based on a biodegradable and biocompatible poly(ε-caprolactone) polymer. The results showed that nanoparticles loaded with hydroxycinnamic acids (HA-NCs) have diameter of 224-253 nm, encapsulation efficiency of 53-78%, and are stable over time (30 days). In vitro tests evidenced that NCs are able to preserve HAs in the gastric simulated fluid and release them in the intestinal simulated fluid. The delivery system developed could be employed to create novel functional foods.
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Affiliation(s)
- Giuseppe Granata
- Istituto Chimica Biomolecolare - C.N.R., Via Paolo Gaifami 18, 95126, Italy
| | - Grazia M L Consoli
- Istituto Chimica Biomolecolare - C.N.R., Via Paolo Gaifami 18, 95126, Italy
| | - Raffaella Lo Nigro
- Istituto per la Microelettronica e i Microsistemi - C.N.R., Stradale Primo Sole 50, 95121 Catania, Italy
| | - Corrada Geraci
- Istituto Chimica Biomolecolare - C.N.R., Via Paolo Gaifami 18, 95126, Italy.
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Fuentes E, Fuentes M, Caballero J, Palomo I, Hinz S, El-Tayeb A, Müller CE. Adenosine A 2A receptor agonists with potent antiplatelet activity. Platelets 2017; 29:292-300. [PMID: 28504052 DOI: 10.1080/09537104.2017.1306043] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Selected adenosine A2A receptor agonists (PSB-15826, PSB-12404, and PSB-16301) have been evaluated as new antiplatelet agents. In addition, radioligand-binding studies and receptor-docking experiments were performed in order to explain their differential biological effects on a molecular level. Among the tested adenosine derivatives, PSB-15826 was the most potent compound to inhibit platelet aggregation (EC50 0.32 ± 0.05 µmol/L) and platelet P-selectin cell-surface localization (EC50 0.062 ± 0.2 µmol/L), and to increase intraplatelets cAMP levels (EC50 0.24 ± 0.01 µmol/L). The compound was more active than CGS21680 (EC50 0.97±0.07 µmol/L) and equipotent to NECA (EC50 0.31 ± 0.05 µmol/L) in platelet aggregation induced by ADP. In contrast to the results from cAMP assays, Ki values determined in radioligand-binding studies were not predictive of the A2A agonists' antiplatelet activity. Docking studies revealed the key molecular determinants of this new family of adenosine A2A receptor agonists: differences in activities are related to π-stacking interactions between the ligands and the residue His264 in the extracellular loop of the adenosine A2A receptor which may result in increased residence times. In conclusion, these results provide an improved understanding of the requirements of antiplatelet adenosine A2A receptor agonists.
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Affiliation(s)
- Eduardo Fuentes
- a Platelet Research Laboratory, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences , Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca , Talca , Chile.,b Núcleo Científico Multidisciplinario , Universidad de Talca , Talca , Chile
| | - Manuel Fuentes
- a Platelet Research Laboratory, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences , Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca , Talca , Chile
| | - Julio Caballero
- c Centro de Bioinformatica y Simulacion Molecular (CBSM) , Universidad de Talca , Talca , Chile
| | - Iván Palomo
- a Platelet Research Laboratory, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences , Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca , Talca , Chile
| | - Sonja Hinz
- d PharmaCenter Bonn , Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn , Bonn , Germany
| | - Ali El-Tayeb
- d PharmaCenter Bonn , Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn , Bonn , Germany
| | - Christa E Müller
- d PharmaCenter Bonn , Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn , Bonn , Germany
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Devi NS, Ramanan M, Paragi-Vedanthi P, Doble M. Phytochemicals as multi-target inhibitors of the inflammatory pathway- A modeling and experimental study. Biochem Biophys Res Commun 2017; 484:467-473. [DOI: 10.1016/j.bbrc.2017.01.046] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 01/08/2017] [Accepted: 01/10/2017] [Indexed: 02/01/2023]
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Baeza G, Bachmair EM, Wood S, Mateos R, Bravo L, de Roos B. The colonic metabolites dihydrocaffeic acid and dihydroferulic acid are more effective inhibitors of in vitro platelet activation than their phenolic precursors. Food Funct 2017; 8:1333-1342. [DOI: 10.1039/c6fo01404f] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Cardiovascular disease (CVD) is the major cause of morbidity and mortality worldwide.
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Affiliation(s)
- Gema Baeza
- Rowett Institute
- University of Aberdeen
- Aberdeen
- UK
- Department of Metabolism and Nutrition
| | | | - Sharon Wood
- Rowett Institute
- University of Aberdeen
- Aberdeen
- UK
| | - Raquel Mateos
- Department of Metabolism and Nutrition
- Institute of Food Science
- Technology and Nutrition (ICTAN)
- Spanish National Research Council (CSIC)
- 28040 Madrid
| | - Laura Bravo
- Department of Metabolism and Nutrition
- Institute of Food Science
- Technology and Nutrition (ICTAN)
- Spanish National Research Council (CSIC)
- 28040 Madrid
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Choi JH, Kim S. Investigation of the anticoagulant and antithrombotic effects of chlorogenic acid. J Biochem Mol Toxicol 2016; 31. [PMID: 27704645 DOI: 10.1002/jbt.21865] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/01/2016] [Accepted: 09/13/2016] [Indexed: 01/08/2023]
Abstract
Thrombosis is a leading cause of morbidity and mortality throughout the world. Thrombolytic agents are important for both the prevention and treatment of thrombosis. Fibrin clot and turbidity assays revealed that it was able to inhibit the formation of fibrin clot. Chlorogenic acid degraded blood clot and inhibited the enzymatic activity of procoagulant proteases, thrombin, activated factor X (FXa), and activated factor XIII (FXIIIa). Chlorogenic acid was found to delay activated partial thromboplastin time, prothrombin time, and thrombin time. PFA-100 assays showed that it prolonged the closure time of citrated whole human blood. It demonstrated the antithrombotic effect in collagen and epinephrine-induced acute thromboembolism mice model. These antithrombotic profiles together with its anticoagulant and platelet disaggregation properties, and lack of toxicity to NIH-3T3 and 3T3-L1 cells, make it a potential agent for thrombotic treatment and prevention.
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Affiliation(s)
- Jun-Hui Choi
- Department of Bio-Health Science, Gwangju University, Gwangju, 503-703, Republic of Korea
| | - Seung Kim
- Department of Bio-Health Science, Gwangju University, Gwangju, 503-703, Republic of Korea
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Stefanello N, Schmatz R, Pereira LB, Cardoso AM, Passamonti S, Spanevello RM, Thomé G, de Oliveira GMT, Kist LW, Bogo MR, Morsch VM, Schetinger MRC. Effects of chlorogenic acid, caffeine and coffee on components of the purinergic system of streptozotocin-induced diabetic rats. J Nutr Biochem 2016; 38:145-153. [PMID: 27736734 DOI: 10.1016/j.jnutbio.2016.08.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 08/08/2016] [Accepted: 08/20/2016] [Indexed: 12/20/2022]
Abstract
We evaluated the effect of chlorogenic acid (CGA), caffeine (CA) and coffee (CF) on components of the purinergic system from the cerebral cortex and platelets of streptozotocin-induced diabetic rats. Animals were divided into eight groups: control animals treated with (I) water (WT), (II) CGA (5 mg/kg), (III) CA (15 mg/kg) and (IV) CF (0.5 g/kg), and diabetic animals treated with (V) WT, (VI) CGA (5 mg/kg), (VII) CA (15 mg/kg) and (VIII) CF (0.5 g/kg). Our results showed an increase (173%) in adenosine monophosphate (AMP) hydrolysis in the cerebral cortex of diabetic rats. In addition, CF treatment increased adenosine diphosphate (ADP) and AMP hydrolysis in group VIII synaptosomes. Platelets showed an increase in ectonucleotidase activity in group V, and all treatments reduced the increase in adenosine triphosphate and ADP hydrolysis. Furthermore, there was an increase in platelet aggregation of 72% in the diabetic rats, and CGA and CF treatment reduced platelet aggregation by nearly 60% when compared to diabetic rats. In this context, we can suggest that CGA and CF treatment should be considered a therapeutic and scientific target to be investigated in diseases associated with hyperglycemia.
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Affiliation(s)
- Naiara Stefanello
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Center of Natural and Exact Sciences, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil.
| | - Roberta Schmatz
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Center of Natural and Exact Sciences, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil
| | - Luciane Belmonte Pereira
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Center of Natural and Exact Sciences, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil
| | - Andréia Machado Cardoso
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Center of Natural and Exact Sciences, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil
| | - Sabina Passamonti
- Department of Life Sciences, University of Trieste, via L. Giorgieri 1, 34127, Trieste, Italy
| | | | - Gustavo Thomé
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Center of Natural and Exact Sciences, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil
| | | | - Luiza Wilges Kist
- Laboratory of Genomics and Molecular Biology, Faculty of Biosciences, PUCRS, 90619-900 Porto Alegre, RS, Brazil
| | - Maurício Reis Bogo
- Laboratory of Genomics and Molecular Biology, Faculty of Biosciences, PUCRS, 90619-900 Porto Alegre, RS, Brazil
| | - Vera Maria Morsch
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Center of Natural and Exact Sciences, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil
| | - Maria Rosa Chitolina Schetinger
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Center of Natural and Exact Sciences, UFSM, Camobi, 97105-900, Santa Maria, RS, Brazil.
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Tom ENL, Girard-Thernier C, Demougeot C. The Janus face of chlorogenic acid on vascular reactivity: A study on rat isolated vessels. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:1037-1042. [PMID: 27444349 DOI: 10.1016/j.phymed.2016.06.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/10/2016] [Accepted: 06/15/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Chlorogenic acid (CGA), the main polyphenol contained in coffee, is a major contributor to dietary polyphenol intake. Few studies reported its anti-hypertensive properties but the mechanisms are still indefinite. PURPOSE The present study assessed the direct effect of CGA in endothelium denuded or intact aortic rings from male Wistar rats and the mechanisms involved. METHODS/RESULTS CGA induced a direct endothelium-dependent relaxation that was significantly reduced by L-NAME (10(-4)M), indomethacin (10(-5)M) and combination of apamin (10(-7)M) and charybdotoxin (10(-7)M). Incubation of rings with CGA induced a dual effect on agonist-induced vasorelaxation. At 10(-6)M, it enhanced the relaxant effects of acetylcholine and reduced the contracting effects of phenylephrine due to increased basal and stimulated NOS activity, respectively. At 10(-4)M, CGA blunted acetylcholine and bradykinin-induced vasorelaxation, reduced phenylephrine-induced vasoconstriction but did not change the response to sodium nitroprusside, a NO-donor. CONCLUSION In summary, CGA induces a direct endothelium-dependent vasodilation by increasing NOS, COX and EDHF signalling pathways. However, this new pharmacological action that can explain some positive effects of CGA in case of hypertension has to be modulated at the light of its deleterious impact on vascular relaxation at high concentrations and incite to be cautious when using high doses of CGA in clinical studies.
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Affiliation(s)
- Esther Ngo Lemba Tom
- Laboratoire de Physiologie Animale, Département des Sciences Biologiques, Ecole Normale Supérieure, Université de Yaoundé I, B.P. 47 Yaoundé, Cameroun ; EA 4267 « Fonctions et Dysfonctions Epithéliales », UFR Sciences Médicales et Pharmaceutiques, Université de Bourgogne Franche-Comté, 19 rue Ambroise Paré, bâtiment S, F-25030 Besancon, France
| | - Corine Girard-Thernier
- EA 4267 « Fonctions et Dysfonctions Epithéliales », UFR Sciences Médicales et Pharmaceutiques, Université de Bourgogne Franche-Comté, 19 rue Ambroise Paré, bâtiment S, F-25030 Besancon, France
| | - Céline Demougeot
- EA 4267 « Fonctions et Dysfonctions Epithéliales », UFR Sciences Médicales et Pharmaceutiques, Université de Bourgogne Franche-Comté, 19 rue Ambroise Paré, bâtiment S, F-25030 Besancon, France.
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Fuentes E, Rojas A, Palomo I. NF-κB signaling pathway as target for antiplatelet activity. Blood Rev 2016; 30:309-15. [PMID: 27075489 DOI: 10.1016/j.blre.2016.03.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 02/26/2016] [Accepted: 03/08/2016] [Indexed: 02/07/2023]
Abstract
In different nucleated cells, NF-κB has long been considered a prototypical proinflammatory signaling pathway with the expression of proinflammatory genes. Although platelets lack a nucleus, a number of functional transcription factors are involved in activated platelets, such as NF-κB. In platelet activation NF-κB regulation events include IKKβ phosphorylation, IκBα degradation, and p65 phosphorylation. Multiple pathways contribute to platelet activation and NF-κB is a common pathway in this activation. Therefore, in platelet activation the modulation of NF-κB pathway could be a potential new target in the treatment of inflammation-related vascular disease therapy (antiplatelet and antithrombotic activities).
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Affiliation(s)
- Eduardo Fuentes
- Laboratory of Hematology and Immunology, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca, Talca, Chile; Centro de Estudios en Alimentos Procesados (CEAP), CONICYT-Regional, Gore Maule, R09I2001, Talca, Chile.
| | - Armando Rojas
- Biomedical Research Laboratories, Medicine Faculty, Catholic University of Maule, Talca, Chile
| | - Iván Palomo
- Laboratory of Hematology and Immunology, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences, Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca, Talca, Chile; Centro de Estudios en Alimentos Procesados (CEAP), CONICYT-Regional, Gore Maule, R09I2001, Talca, Chile.
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Tian X, Chang L, Ma G, Wang T, Lv M, Wang Z, Chen L, Wang Y, Gao X, Zhu Y. Delineation of Platelet Activation Pathway of Scutellarein Revealed Its Intracellular Target as Protein Kinase C. Biol Pharm Bull 2015; 39:181-91. [PMID: 26581323 DOI: 10.1248/bpb.b15-00511] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Erigeron breviscapus has been widely used in traditional Chinese medicine (TCM) and its total flavonoid component is commonly used to treat ischemic stroke, coronary heart disease, diabetes and hypertension. Scutellarin is the major ingredient of E. breviscapus and scutellarein is one of the main bioactive metabolites of scutellarin in vivo, but the latter's pharmacological activities have not been fully characterized. Provided evidence that could inhibit platelet aggregation, the effect of scutellarein on rat washed platelets and its underlying mechanisms were evaluated in our research. Scutellarein inhibited platelet adhesion and aggregation induced by multiple G protein coupled receptor agonists such as thrombin, U46619 and ADP, in a concentration-dependent manner. Furthermore, the mild effect of scutellarein on intracellular Ca(2+) mobilization and cyclic AMP (cAMP) level was observed. On the other hand, the role of scutellarein as potential protein kinase C (PKC) inhibitor was confirmed by PKC activity analysis and molecular docking. The phorbol myristate acetate-induced platelets aggregation assay with or without ADP implied that the scutellarein takes PKC(s) as its primary target(s), and acts on it in a reversible way. Finally, scutellarein as a promising agent exhibited a high inhibition effect on ADP-induced platelet aggregation among its analogues. This study clarifies the PKC-related signaling pathway involved in antiplatelet action of scutellarein, and may be beneficial for the treatment of cardiovascular diseases.
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Affiliation(s)
- Xiaoxuan Tian
- Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine
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Zhang Y, Ma XJ, Shi DZ. Antiplatelet Effect of Active Components Derived from Chinese Herbal Medicine. Chin J Integr Med 2015; 24:632-640. [DOI: 10.1007/s11655-015-2297-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2015] [Indexed: 01/08/2023]
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Therapeutic Potential of Dietary Phenolic Acids. Adv Pharmacol Sci 2015; 2015:823539. [PMID: 26442119 PMCID: PMC4579300 DOI: 10.1155/2015/823539] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 08/03/2015] [Accepted: 08/18/2015] [Indexed: 01/24/2023] Open
Abstract
Although modern lifestyle has eased the quality of human life, this lifestyle's related patterns have imparted negative effects on health to acquire multiple diseases. Many synthetic drugs are invented during the last millennium but most if not all of them possess several side effects and proved to be costly. Convincing evidences have established the premise that the phytotherapeutic potential of natural compounds and need of search for novel drugs from natural sources are of high priority. Phenolic acids (PAs) are a class of secondary metabolites spread throughout the plant kingdom and generally involved in plethora of cellular processes involved in plant growth and reproduction and also produced as defense mechanism to sustain various environmental stresses. Extensive research on PAs strongly suggests that consumption of these compounds hold promise to offer protection against various ailments in humans. This paper focuses on the naturally derived PAs and summarizes the action mechanisms of these compounds during disease conditions. Based on the available information in the literature, it is suggested that use of PAs as drugs is very promising; however more research and clinical trials are necessary before these bioactive molecules can be made for treatment. Finally this review provides greater awareness of the promise that natural PAs hold for use in the disease prevention and therapy.
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Kwon SU, Cha JY, Lee HY, Xin M, Ji SJ, Kim DK, Park DS, Pyo MK, Lee YM. Chloroform fraction of Euphorbia maculata has antiplatelet activity via suppressing thromboxane B2 formation. Mol Med Rep 2015; 11:4255-61. [PMID: 25672843 DOI: 10.3892/mmr.2015.3319] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 01/15/2015] [Indexed: 11/06/2022] Open
Abstract
Euphorbia maculata (EM) is a traditionally used antidiarrheal, antibacterial, antifungal and antioxidant agent. However, the effects of EM on platelet activity remain to be elucidated. Therefore, the present study investigated the antiplatelet effect of various EM extract fractions on platelet aggregation in rats. The antiplatelet activity of the EM fractions on collagen or adenosine diphosphate (ADP)‑induced platelet aggregation was evaluated in vitro and ex vivo. Thromboxane B2 (TXB2) formation, rat‑tail bleeding time and coagulation time were also measured. Among the fractions, the chloroform fraction of EM (CFEM) significantly inhibited ADP‑induced platelet aggregation in vitro. Furthermore, oral administration of 50 mg/kg CFEM to rats significantly reduced ADP‑induced platelet aggregation without increasing the tail bleeding time or coagulation time. In addition, EM significantly inhibited the level of TXB2 formation in a dose‑dependent manner. These results suggest that CFEM exhibits antiplatelet activity, without causing bleeding, via the suppression of TXB2 formation. CFEM may be a type of food which has the potential for preventing cardiovascular disease.
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Affiliation(s)
- Se-Uk Kwon
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang‑Oriental Medicines Research Institute, Wonkwang University, Iksan, Jeonbuk 570‑749, Republic of Korea
| | - Ji-Yoon Cha
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang‑Oriental Medicines Research Institute, Wonkwang University, Iksan, Jeonbuk 570‑749, Republic of Korea
| | - Hoon-Yeon Lee
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang‑Oriental Medicines Research Institute, Wonkwang University, Iksan, Jeonbuk 570‑749, Republic of Korea
| | - Mingjie Xin
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang‑Oriental Medicines Research Institute, Wonkwang University, Iksan, Jeonbuk 570‑749, Republic of Korea
| | - Su-Jeong Ji
- Department of Food Industry Convergence, Wonkwang University, Iksan, Jeonbuk 570‑749, Republic of Korea
| | - Dae-Ki Kim
- Department of Immunology and Institute of Medical Science, Jeonbuk National University Medical School, Jeonju, Jeonbuk 561‑180, Republic of Korea
| | - Do-Sim Park
- Department of Laboratory Medicine, School of Medicine, Wonkwang University, Iksan, Jeonbuk 570‑749, Republic of Korea
| | - Mi-Kyung Pyo
- International Ginseng and Herb Research Institute, Guemsan, Chungbuk 312‑804, Republic of Korea
| | - Young-Mi Lee
- Department of Oriental Pharmacy, College of Pharmacy, Wonkwang‑Oriental Medicines Research Institute, Wonkwang University, Iksan, Jeonbuk 570‑749, Republic of Korea
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Fuentes E, Forero-Doria O, Alarcón M, Palomo I. Inhibitory effects of Cyperus digitatus extract on human platelet function in vitro. Platelets 2014; 26:764-70. [PMID: 25548968 DOI: 10.3109/09537104.2014.997689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The purpose of this research was to investigate the mechanisms of antiplatelet action of Cyperus digitatus. The antiplatelet action of C. digitatus was studied on platelet function: secretion, adhesion, aggregation, and sCD40L release. The platelet ATP secretion and aggregation were significantly inhibited by CDA (ethyl acetate extract) at 0.1 mg/ml and after the incubation of whole blood with CDA, the platelet coverage was inhibited by 96 ± 3% (p < 0.001). At the same concentration, CDA significantly decreased sCD40L levels. The mechanism of antiplatelet action of CDA could be by NF-κB inhibition and that is cAMP independent. In conclusion, C. digitatus extract may serve as a new source of antiplatelet agents for food and nutraceutical applications.
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Affiliation(s)
- Eduardo Fuentes
- a Department of Clinical Biochemistry and Immunohematology , Faculty of Health Sciences. Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca , Talca , Chile .,b Centro de Estudios en Alimentos Procesados (CEAP), CONICYT-Regional , Gore Maule, R09I2001 , Chile , and
| | - Oscar Forero-Doria
- c Chemical Institute of Natural Resources, Universidad de Talca , Talca , Chile
| | - Marcelo Alarcón
- a Department of Clinical Biochemistry and Immunohematology , Faculty of Health Sciences. Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca , Talca , Chile .,b Centro de Estudios en Alimentos Procesados (CEAP), CONICYT-Regional , Gore Maule, R09I2001 , Chile , and
| | - Iván Palomo
- a Department of Clinical Biochemistry and Immunohematology , Faculty of Health Sciences. Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca , Talca , Chile .,b Centro de Estudios en Alimentos Procesados (CEAP), CONICYT-Regional , Gore Maule, R09I2001 , Chile , and
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Tang LP, Mao ZF, Li XX, Chen M, Li SB, Tsoi B, Cao LF, Li L, Zeng JM, Wang ZW, Yu GY, Xiao W, Li YF, Kurihara H, He RR. ReDuNing, a patented Chinese medicine, reduces the susceptibility to H1N1 influenza of mice loaded with restraint stress. Eur J Integr Med 2014. [DOI: 10.1016/j.eujim.2014.07.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Fuentes E, Palomo I. Regulatory mechanisms of cAMP levels as a multiple target for antiplatelet activity and less bleeding risk. Thromb Res 2014; 134:221-6. [PMID: 24830902 DOI: 10.1016/j.thromres.2014.04.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 04/22/2014] [Accepted: 04/25/2014] [Indexed: 12/19/2022]
Abstract
Platelet activation is a critical component of atherothrombosis. The multiple pathways of platelet activation limit the effect of specific receptor/pathway inhibitors, resulting in limited clinical efficacy. Recent research has confirmed that combination therapy results in enhanced antithrombotic efficacy without increasing bleeding risk. In this way, the best-known inhibitor and turn off signaling in platelet activation is cAMP. In this article we discuss the mechanisms of regulation of intraplatelet cAMP levels, a) platelet-dependent pathway: Gi/Gs protein-coupled receptors, phosphodiesterase inhibition and activation of PPARs and b) platelet-independent pathway: inhibition of adenosine uptake by erythrocytes. With respect to the association between intraplatelet cAMP levels and bleeding risk it is possible to establish that compounds/drugs with pleitropic effect for increased intraplatelet cAMP level could have an antithrombotic activity with less risk of bleeding.
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Affiliation(s)
- Eduardo Fuentes
- Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca, Talca, Chile; Centro de Estudios en Alimentos Procesados (CEAP), CONICYT-Regional, Gore Maule, R09I2001, Chile.
| | - Iván Palomo
- Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), Universidad de Talca, Talca, Chile; Centro de Estudios en Alimentos Procesados (CEAP), CONICYT-Regional, Gore Maule, R09I2001, Chile.
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