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Popp SK, Vecchio F, Brown DJ, Fukuda R, Suzuki Y, Takeda Y, Wakamatsu R, Sarma MA, Garrett J, Giovenzana A, Bosi E, Lafferty AR, Brown KJ, Gardiner EE, Coupland LA, Thomas HE, Chong BH, Parish CR, Battaglia M, Petrelli A, Simeonovic CJ. Circulating platelet-neutrophil aggregates characterize the development of type 1 diabetes in humans and NOD mice. JCI Insight 2022; 7:153993. [PMID: 35076023 PMCID: PMC8855805 DOI: 10.1172/jci.insight.153993] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 12/01/2021] [Indexed: 12/19/2022] Open
Abstract
Platelet-neutrophil aggregates (PNAs) facilitate neutrophil activation and migration and could underpin the recruitment of neutrophils to the pancreas during type 1 diabetes (T1D) pathogenesis. PNAs, measured by flow cytometry, were significantly elevated in the circulation of autoantibody-positive (Aab+) children and new-onset T1D children, as well as in pre-T1D (at 4 weeks and 10–12 weeks) and T1D-onset NOD mice, compared with relevant controls, and PNAs were characterized by activated P-selectin+ platelets. PNAs were similarly increased in pre-T1D and T1D-onset NOD isolated islets/insulitis, and immunofluorescence staining revealed increased islet-associated neutrophil extracellular trap (NET) products (myeloperoxidase [MPO] and citrullinated histones [CitH3]) in NOD pancreata. In vitro, cell-free histones and NETs induced islet cell damage, which was prevented by the small polyanionic drug methyl cellobiose sulfate (mCBS) that binds to histones and neutralizes their pathological effects. Elevated circulating PNAs could, therefore, act as an innate immune and pathogenic biomarker of T1D autoimmunity. Platelet hyperreactivity within PNAs appears to represent a previously unrecognized hematological abnormality that precedes T1D onset. In summary, PNAs could contribute to the pathogenesis of T1D and potentially function as a pre-T1D diagnostic.
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Affiliation(s)
- Sarah K. Popp
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
| | - Federica Vecchio
- San Raffaele Diabetes Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Debra J. Brown
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
| | - Riho Fukuda
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
- Tokyo Medical and Dental University, Bunkyo City, Tokyo, Japan
| | - Yuri Suzuki
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
- Tokyo Medical and Dental University, Bunkyo City, Tokyo, Japan
| | - Yuma Takeda
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
- Tokyo Medical and Dental University, Bunkyo City, Tokyo, Japan
| | - Rikako Wakamatsu
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
- Tokyo Medical and Dental University, Bunkyo City, Tokyo, Japan
| | - Mahalakshmi A. Sarma
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
| | - Jessica Garrett
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, ANU, Canberra, Australia
| | - Anna Giovenzana
- San Raffaele Diabetes Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Emanuele Bosi
- San Raffaele Diabetes Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
- San Raffaele Vita Salute University, Milan, Italy
| | - Antony R.A. Lafferty
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
- Department of Pediatrics, The Canberra Hospital, Canberra, Australia
| | - Karen J. Brown
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
- Department of Pediatrics, The Canberra Hospital, Canberra, Australia
| | - Elizabeth E. Gardiner
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, ANU, Canberra, Australia
| | - Lucy A. Coupland
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, ANU, Canberra, Australia
| | - Helen E. Thomas
- St. Vincent’s Institute of Medical Research, Melbourne, Australia
| | - Beng H. Chong
- Hematology Research Unit, St. George and Sutherland Clinical School, University of New South Wales, Sydney, Australia
| | - Christopher R. Parish
- ACRF Department of Cancer Biology and Therapeutics, The John Curtin School of Medical Research, ANU, Canberra, Australia
| | - Manuela Battaglia
- San Raffaele Diabetes Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Alessandra Petrelli
- San Raffaele Diabetes Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Charmaine J. Simeonovic
- Department of Immunology and Infectious Disease, The John Curtin School of Medical Research, The Australian National University (ANU), Canberra, Australia
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Cyperus esculentus L. and Tetracarpidium conophorum Müll. Arg. Supplemented Diet Improved Testosterone Levels, Modulated Ectonucleotidases and Adenosine Deaminase Activities in Platelets from L-NAME-Stressed Rats. Nutrients 2021; 13:nu13103529. [PMID: 34684530 PMCID: PMC8541559 DOI: 10.3390/nu13103529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/22/2021] [Accepted: 09/24/2021] [Indexed: 02/07/2023] Open
Abstract
In hypertensive individuals, platelet morphology and function have been discovered to be altered, and this has been linked to the development of vascular disease, including erectile dysfunction (ED). The impact of nutritional supplementation with Cyperus esculentus (tiger nut, TN) and Tetracarpidium conophorum (walnut, WN) on androgen levels, ectonucleotidases, and adenosine deaminase (ADA) activities in platelets from L-NAME (Nω-nitro-L-arginine methyl ester hydrochloride) challenged rats were investigated. We hypothesized that these nuts may show a protective effect on platelets aggregation and possibly enhance the sex hormones, thereby reverting vasoconstriction. Wistar rats (male; 250-300 g; n = 10) were grouped into seven groups as follows: basal diet control group (I); basal diet/L-NAME/Viagra (5 mg/kg/day) as positive control group (II); ED-induced group (basal diet/L-NAME) (III); diet supplemented processed TN (20%)/L-NAME (IV); diet supplemented raw TN (20%)/L-NAME (V); diet supplemented processed WN (20%)/L-NAME (VI); and diet supplemented raw WN (20%)/L-NAME (VII). The rats were given their regular diet for 2 weeks prior to actually receiving L-NAME (40 mg/kg/day) for ten days to induce hypertension. Platelet androgen levels, ectonucleotidases, and ADA were all measured. L-NAME considerably lowers testosterone levels (54.5 ± 2.2; p < 0.05). Supplementing the TN and WN diets revealed improved testosterone levels as compared to the control (306.7 ± 5.7), but luteinizing hormone levels remained unchanged. Compared to control groups, the L-NAME-treated group showed a rise in ATP (127.5%) hydrolysis and ADA (116.7%) activity, and also a decrease in ADP (76%) and AMP (45%) hydrolysis. Both TN and WN supplemented diets resulted in substantial (p < 0.05) reversal effects. Enhanced testosterone levels and modulation of the purinergic system in platelets by TN and WN could be one of the mechanisms by which they aid in vasoconstriction control.
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Tenekecioglu E, Topal D, Mutluer F, Aydin O, Cakir H, Kanat S, Aslan B, Er F, Uslu A, Bozkaya V, Keskin M, Karsi R, Yilmaz M, Aksakal E, Demir M. The relationship between hemoglobin A1c levels and thrombus load in patients with type 2 diabetes mellitus and non-ST-segment elevation myocardial infarction. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2021; 26:118. [PMID: 35126581 PMCID: PMC8765519 DOI: 10.4103/jrms.jrms_997_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 08/25/2019] [Accepted: 12/25/2020] [Indexed: 11/13/2022]
Abstract
Background: We aimed to investigate the relationship between hemoglobin A1c (HbA1c) and coronary thrombus load in type-2 diabetes mellitus (T2DM) patients with non-ST segment elevation myocardial infarction (NSTEMI). Materials and Methods: Ninety diabetic patients with NSTEMI were recruited for the study. They were separated into two groups according to HbA1c levels. Forty-seven patients having HbA1c ≤6.5% formed Group-I (35 male, mean age 58 ± 10.5 years) and the remaining 43 patients with HbA1c >6.5% formed Group-II (23 male, mean age 58 ± 11.1 years). Both the groups were evaluated in terms of thrombolysis in myocardial infarction (TIMI) thrombus score and Syntax score. Results: Baseline patient characteristics were comparable in both the groups. TIMI thrombus score and Syntax score were higher in Group II than in Group I (3.2 ± 1.4 vs. 4.7 ± 0.5 and 20.2 ± 3.4 vs. 26.3 ± 3.0 respectively, P < 0.05). No significant difference was found in other parameters. In stepwise linear regression analysis, prepercutaneous coronary intervention (PCI) and post-PCI TIMI frame number and HbA1c were significantly related to the coronary thrombus scale. However, no significant relationship has been found between thrombus formation and hypertension, previous PCI history, pre-PCI heart rate, pre-PCI cholesterol status, and high-sensitive troponin T. Conclusion: In NSTEMI with T2DM, increased HbA1c (HbA1c >6.5%) is related with coronary thrombus in the target vessel. In those patient population, strict anticoagulation should be considered to prevent potential adverse events.
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Liu K, Xu J, Tao L, Yang K, Sun Y, Guo X. Platelet counts are associated with arterial stiffness in Chinese Han population: a longitudinal study. BMC Cardiovasc Disord 2020; 20:353. [PMID: 32731902 PMCID: PMC7393731 DOI: 10.1186/s12872-020-01634-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 07/20/2020] [Indexed: 11/13/2022] Open
Abstract
Background Determining the risk factors for brachial-ankle pulse wave velocity (baPWV) may help to identify people susceptible to diabetic atherosclerosis and could prevent diabetic macrovascular complications in the early stages. We aim to comprehensively investigate risk factors contributing to arterial stiffness in patients with and without diabetes. Methods BaPWV was measured in 5651 individuals who attended health check-ups at baseline and follow-up. Lasso regression was used to screen for risk factors. Mixed models and multiple linear regressions were subsequently established to evaluate the effect size of the potential risk factors on baPWV and PWV change rates. All analyses were stratified by diabetes. Mediation analysis was also conducted to demonstrate the mechanisms of arterial stiffness in patients with diabetes. Results In lasso regression, postprandial 2-h glucose (P2hG), systolic blood pressure (SBP) and age were associated with baPWV regardless of diabetes. Platelet counts (PLT), mean corpuscular volume (MCV) and coronary heart disease (CHD) were associated with baPWV in patients with diabetes. In the mixed models, PLT were positively associated with baPWV in patients with diabetes (βplatelet, perSD = 25.80; 18.26–33.33). Elevated PLTs could also significantly increase the PWV change rate in patients with diabetes (βplatelet, perSD = 54.05; 10.00–107.10). In mediation analysis, diabetes had a significant average direct effect on baPWV. The average causal mediation effect (ACME) of PLTs was 1.76, with a range of 0.17 to 3.70. Conclusions Elevated PLT counts can increase baPWV in diabetes and are a potential mediator between diabetes and atherosclerosis.
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Affiliation(s)
- Kuo Liu
- Department of Epidemiology and Health statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, Youanmenwai Avenue, Beijing, 100069, People's Republic of China.,Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Junfeng Xu
- Beijing Xiaotangshan Hospital, Xiaotangshan Town, Changping District, Beijing, 102211, China
| | - Lixin Tao
- Department of Epidemiology and Health statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, Youanmenwai Avenue, Beijing, 100069, People's Republic of China.,Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Kun Yang
- Department of Epidemiology and Health statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, Youanmenwai Avenue, Beijing, 100069, People's Republic of China.,Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Yang Sun
- Department of Epidemiology and Health statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, Youanmenwai Avenue, Beijing, 100069, People's Republic of China.,Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Xiuhua Guo
- Department of Epidemiology and Health statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, Youanmenwai Avenue, Beijing, 100069, People's Republic of China. .,Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, China.
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Arriagada-Petersen C, Fernandez P, Gomez M, Ravello N, Palomo I, Fuentes E, Ávila F. Effect of advanced glycation end products on platelet activation and aggregation: a comparative study of the role of glyoxal and methylglyoxal. Platelets 2020; 32:507-515. [PMID: 32449466 DOI: 10.1080/09537104.2020.1767770] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Advanced glycation end products (AGEs) arising from dietary intake have been associated with numerous chronic diseases including cardiovascular diseases. The interaction between platelets and AGEs has been proposed to play a role in the etiology of cardiovascular diseases. However, the effects of the interaction between platelets and Maillard reaction products generated from glyoxal (Gly) or methylglyoxal (MG) are poorly understood. In this work, the effects of AGEs generated by the reaction between Gly or MG with Lys or bovine serum albumin (BSA) on platelet activation and aggregation were assessed. AGEs were generated incubating Gly or MG with Lys or BSA during 5 hours or 14 days, respectively. AGEs generation were characterized by kinetic studies and by amino acid analysis. Human platelet-rich plasma (PRP) was incubated with different concentrations of AGEs from Lys-MG or Lys-Gly and BSA-MG or BSA-Gly. Platelet activation was determined quantifying the expression of CD62 (P-selectin) in PRP exposed to different AGEs concentrations. It was found that Lys-MG and Lys-Gly induced an increase in P-selectin expression (p < .05), being 33.9% higher for Lys-MG when compared to Lys-Gly. Platelets incubated in the presence of BSA-MG and BSA-Gly did not show an increase in the P-selectin expression. Platelet aggregation was significantly higher for the mixture Lys-MG (in all the range of concentrations evaluated), whereas for Lys-Gly it was only significant the highest concentration (Lys 168 µM/Gly 168 µM). It was observed a significant increase in platelet aggregation induced by ADP for samples BSA-Gly. AGEs formed with MG-Lys induce a higher activation and aggregation of platelets when compared to those formed from Gly-Lys.
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Affiliation(s)
| | - Paula Fernandez
- Escuela De Nutrición Y Dietética, Facultad De Ciencias De La Salud, Universidad De Talca, Talca, Chile
| | - Maira Gomez
- Escuela De Nutrición Y Dietética, Facultad De Ciencias De La Salud, Universidad De Talca, Talca, Chile
| | - Natalia Ravello
- Escuela De Nutrición Y Dietética, Facultad De Ciencias De La Salud, Universidad De Talca, Talca, Chile
| | - Iván Palomo
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad De Talca, Talca, Chile
| | - Eduardo Fuentes
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Universidad De Talca, Talca, Chile
| | - Felipe Ávila
- Escuela De Nutrición Y Dietética, Facultad De Ciencias De La Salud, Universidad De Talca, Talca, Chile
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Barale C, Russo I. Influence of Cardiometabolic Risk Factors on Platelet Function. Int J Mol Sci 2020; 21:ijms21020623. [PMID: 31963572 PMCID: PMC7014042 DOI: 10.3390/ijms21020623] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 12/16/2022] Open
Abstract
Platelets are key players in the thrombotic processes. The alterations of platelet function due to the occurrence of metabolic disorders contribute to an increased trend to thrombus formation and arterial occlusion, thus playing a major role in the increased risk of atherothrombotic events in patients with cardiometabolic risk factors. Several lines of evidence strongly correlate metabolic disorders such as obesity, a classical condition of insulin resistance, dyslipidemia, and impaired glucose homeostasis with cardiovascular diseases. The presence of these clinical features together with hypertension and disturbed microhemorrheology are responsible for the prothrombotic tendency due, at least partially, to platelet hyperaggregability and hyperactivation. A number of clinical platelet markers are elevated in obese and type 2 diabetes (T2DM) patients, including the mean platelet volume, circulating levels of platelet microparticles, oxidation products, platelet-derived soluble P-selectin and CD40L, thus contributing to an intersection between obesity, inflammation, and thrombosis. In subjects with insulin resistance and T2DM some defects depend on a reduced sensitivity to mediators—such as nitric oxide and prostacyclin—playing a physiological role in the control of platelet aggregability. Furthermore, other alterations occur only in relation to hyperglycemia. In this review, the main cardiometabolic risk factors, all components of metabolic syndrome involved in the prothrombotic tendency, will be taken into account considering some of the mechanisms involved in the alterations of platelet function resulting in platelet hyperactivation.
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El Haouari M. Platelet Oxidative Stress and its Relationship with Cardiovascular Diseases in Type 2 Diabetes Mellitus Patients. Curr Med Chem 2019; 26:4145-4165. [PMID: 28982316 DOI: 10.2174/0929867324666171005114456] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 06/07/2017] [Accepted: 06/07/2017] [Indexed: 01/01/2023]
Abstract
Enhanced platelet activation and thrombosis are linked to various cardiovascular diseases (CVD). Among other mechanisms, oxidative stress seems to play a pivotal role in platelet hyperactivity. Indeed, upon stimulation by physiological agonists, human platelets generate and release several types of reactive oxygen species (ROS) such as O2 -, H2O2 or OH-, further amplifying the platelet activation response via various signalling pathways, including, formation of isoprostanes, Ca2+ mobilization and NO inactivation. Furthermore, excessive platelet ROS generation, incorporation of free radicals from environment and/or depletion of antioxidants induce pro-oxidant, pro-inflammatory and platelet hyperaggregability effects, leading to the incidence of cardiovascular events. Here, we review the current knowledge regarding the effect of oxidative stress on platelet signaling pathways and its implication in CVD such as type 2 diabetes mellitus. We also summarize the role of natural antioxidants included in vegetables, fruits and medicinal herbs in reducing platelet function via an oxidative stress-mediated mechanism.
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Affiliation(s)
- Mohammed El Haouari
- Centre Regional des Metiers de l'Education et de la Formation de Taza (CRMEF - Taza), B.P: 1178 - Taza Gare, Morocco
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Barale C, Frascaroli C, Cavalot F, Russo I. Hypercholesterolemia impairs the Glucagon-like peptide 1 action on platelets: Effects of a lipid-lowering treatment with simvastatin. Thromb Res 2019; 180:74-85. [PMID: 31229924 DOI: 10.1016/j.thromres.2019.06.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 05/31/2019] [Accepted: 06/14/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND The incretin hormone Glucagon-like peptide 1(GLP-1) plays a pivotal role in maintaining glucose homeostasis with effects also on the cardiovascular system. GLP-1 influences platelet functions by increasing the inhibitory action of nitric oxide (NO) and reducing oxidative stress. To date, the role of hypercholesterolemia (HyC) on platelet GLP-1 effects needs to be elucidated. METHODS Forty-five subjects with primary HyC and twenty normocholesterolemic controls (NoC) were enrolled. In platelets from all subjects, the native GLP-1 (7-36), the truncated GLP-1 (9-36) and the GLP-1 analogue Liraglutide were evaluated in their ability to interfere with the activation of NO/PKG/VASP, PI-3K/Akt e MAPK/ERK-1/2 pathways and oxidative stress. Furthermore, in HyC subjects the role of a lipid-lowering therapy with statin on GLP-1 related peptide effects on platelet function was evaluated. RESULTS Unlike in NoC, in platelets from HyC subjects the GLP-1 related peptides GLP-1 (7-36), GLP-1 (9-36) and Liraglutide all failed to: i) increase the antiaggregating effects of NO and the NO-induced VASP-ser239 phosphorylation, ii) decrease phosphorylation levels of Akt and ERK-2 and iii) reduce reactive oxygen species (ROS) generation. The treatment with simvastatin (40 mg/die) in HyC (n = 18) significantly reduced total and LDL cholesterol levels, platelet aggregability/activation, ROS production and NO action but did not modify platelet sensitivity to the GLP-1 effects. CONCLUSION Collectively, these results indicate that hypercholesterolemia per se is characterized by a resistance to GLP-1 effects on platelets and this impairment is not corrected by treatment with simvastatin.
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Affiliation(s)
- Cristina Barale
- Department of Clinical and Biological Sciences of Turin University, Regione Gonzole 10, I-10043 Orbassano, Turin, Italy.
| | - Chiara Frascaroli
- Metabolic Diseases and Diabetes Unit, San Luigi Gonzaga Hospital, Regione Gonzole 10, I-10043, Orbassano, Turin, Italy.
| | - Franco Cavalot
- Metabolic Diseases and Diabetes Unit, San Luigi Gonzaga Hospital, Regione Gonzole 10, I-10043, Orbassano, Turin, Italy.
| | - Isabella Russo
- Department of Clinical and Biological Sciences of Turin University, Regione Gonzole 10, I-10043 Orbassano, Turin, Italy.
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Lu H, Guan W, Zhou Y, Tang Z, Bao H. Cangrelor or Clopidogrel in Patients with Type 2 Diabetes Mellitus Undergoing Percutaneous Coronary Intervention: A Meta-Analysis of Randomized Controlled Trials. Diabetes Ther 2019; 10:937-950. [PMID: 30905057 PMCID: PMC6531549 DOI: 10.1007/s13300-019-0593-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION With recent advances in interventional cardiology where percutaneous coronary intervention (PCI) has become the most preferred invasive strategy and with advances in adjunctive pharmacotherapy, several newer oral P2Y12 inhibitors have reached the market. In this analysis, we aimed to compare the cardiovascular outcomes and bleeding events which were associated with the use of cangrelor versus clopidogrel in patients with type 2 diabetes mellitus (T2DM) 48 h after PCI. METHODS The electronic databases MEDLINE (PubMed), www.ClinicalTrials.gov , EMBASE, and Cochrane central were searched for relevant publications comparing canagrelor with clopidogrel during PCI. Patients with T2DM were extracted. Adverse cardiovascular outcomes and bleeding events at 48 h follow-up were considered as the end points. This meta-analysis was carried out with the latest RevMan software (5.30). Odds ratios (OR) and 95% confidence intervals (CI) were used to represent the data. RESULTS This analysis consisted of a total number of 5031 participants with T2DM (enrolled between the years 2006 and 2012). Compared to clopidgrel, use of cangrelor in these patients with T2DM was not associated with significantly different primary end point (OR 0.94, 95% CI 0.75-1.16; P = 0.55), myocardial infarction (OR 0.96, 95% CI 0.76-1.20; P = 0.71), all-cause death (OR 0.70, 95% CI 0.25-1.96; P = 0.49), ischemia-driven revascularization (OR 0.66, 95% CI 0.32-1.36; P = 0.26), and stent thrombosis (OR 0.45, 95% CI 0.17-1.17; P = 0.10). Thrombolysis in myocardial infarction (TIMI)-defined major and minor bleedings were similarly manifested: (OR 1.02, 95% CI 0.38-2.74; P = 0.96) and (OR 1.39, 95% CI 0.70-2.79; P = 0.35), respectively. Global use of strategies to open occluded arteries (GUSTO)-defined moderate and severe bleeding were also not significantly different: (OR 1.36, 95% CI 0.70-2.67; P = 0.37) and (OR 1.21, 95% CI 0.41-3.59; P = 0.74), respectively. However, GUSTO-defined mild bleeding and acute catheterization and urgent intervention triage strategy (ACUITY)-defined major and minor bleedings were significantly in favor of clopidogrel in comparison to cangrelor in these patients with T2DM: (OR 1.28, 95% CI 1.09-1.50; P = 0.003), (OR 1.43, 95% CI 1.05-1.94; P = 0.02), and (OR 1.23, 95% CI 1.04-1.46; P = 0.02), respectively. Other bleeding outcomes were not significantly different. CONCLUSIONS In these patients with T2DM, cangrelor was comparable to clopidogrel in terms of efficacy at 48 h following PCI. However, it was associated with significantly higher mild GUSTO bleeding and major and minor ACUITY bleeding, therefore requiring further workups on its safety side. This hypothesis should be explored further and confirmed in other forthcoming trials based strictly on patients with T2DM.
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Affiliation(s)
- Hongtao Lu
- Jingzhou Central Hospital of Cardiology, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei, People's Republic of China
| | - Wenjun Guan
- Jingzhou Central Hospital of Cardiology, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei, People's Republic of China
| | - Yanhua Zhou
- Department of Hematology, Jingzhou First People's Hospital, The First Affiliated Hospital of Yangtze University, Jingzhou, People's Republic of China
| | - Zhangui Tang
- Institute of Cardiovascular Disease, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Hong Bao
- Jiangling County People's Hospital of Cardiology, Jingzhou, Hubei, People's Republic of China.
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Oshima S, Higuchi T, Okada S, Takahashi O. The Relationship Between Mean Platelet Volume and Fasting Plasma Glucose and HbA1c Levels in a Large Cohort of Unselected Health Check-Up Participants. J Clin Med Res 2018; 10:345-350. [PMID: 29511424 PMCID: PMC5827920 DOI: 10.14740/jocmr3361w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 02/06/2018] [Indexed: 11/19/2022] Open
Abstract
Background Larger platelets are more active and mean platelet volume (MPV) is an indicator of platelet activation and an independent risk factor of cardiovascular diseases. While MPV is reported to be higher in diabetic patients, the relationship between MPV and glycemic parameters in general population remains inconclusive. Methods In this cross-sectional study, we studied relationship between MPV and fasting plasma glucose (FPG) and HbA1c levels in 38,204 unselected participants of general health check-up aged 20 years or older in the year of 2014 who were considered to be representative of the general population. Individuals with known diabetes, coronary artery disease and/or cerebrovascular disease who were on drug therapy and those with platelet counts below 100 × 109/L or above 400 × 109/L were excluded. Results The mean age of the individuals was 52.3 ± 12.1 years and 46.1% were male. There were positive associations between MPV and both FPG (r = 0.066; P < 0.001) and HbA1c (r = 0.025; P < 0.001) levels when all individuals were analyzed as a whole. While the association was only marginal in individuals with HbA1c levels below 6.5% (r = 0.009; P = 0.068), it was significant in those with HbA1c ≥ 6.5% (r = 0.138; P < 0.001). When the individuals were categorized into four groups according to the HbA1c values: HbA1c < 5.5%, 5.5% ≤ HbA1c < 6.0%, 6.0% ≤ HbA1c < 6.5%, and HbA1c ≥ 6.5%, the mean MPV was virtually same among groups with HbA1c level < 6.5% and that of the individuals with HbA1c ≥ 6.5 was significantly higher than groups with lower HbA1c levels. Multivariate analyses adjusted with age and sex showed the same results. Conclusion FPG and HbA1c appeared to be associated with MPV in unselected health check-up participants; however, the association between glycemic state and MPV was apparent only in individuals with impaired glycemic control and only marginal in those with normal glycemic control. The clinical significance of the associations warrants further study.
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Affiliation(s)
- Shinichiro Oshima
- Department of Internal Medicine, St. Luke's International Hospital, 9-1, Akashi-cho, Chuo-ku, Tokyo 104-8560, Japan
| | - Takakazu Higuchi
- Division of Hematology, St. Luke's International Hospital, 9-1, Akashi-cho, Chuo-ku, Tokyo 104-8560, Japan.,Dokkyo Medical University Saitama Medical Center, 2-1-50, Minami-Koshigaya, Koshigaya 343-8555, Japan
| | - Sadamu Okada
- Division of Hematology, St. Luke's International Hospital, 9-1, Akashi-cho, Chuo-ku, Tokyo 104-8560, Japan
| | - Osamu Takahashi
- Center for Clinical Epidemiology, St. Luke's International Hospital, 9-1, Akashi-cho, Chuo-ku, Tokyo 104-8560, Japan
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12
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Transient receptor potential canonical type 3 channels: Interactions, role and relevance - A vascular focus. Pharmacol Ther 2017; 174:79-96. [DOI: 10.1016/j.pharmthera.2017.02.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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13
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Binay C, Bozkurt Turhan A, Simsek E, Bor O, Akay OM. Evaluation of Coagulation Profile in Children with Type 1 Diabetes Mellitus Using Rotational Thromboelastometry. Indian J Hematol Blood Transfus 2017; 33:574-580. [PMID: 29075072 DOI: 10.1007/s12288-017-0793-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 02/18/2017] [Indexed: 10/20/2022] Open
Abstract
The prothrombotic state in type 1 diabetes mellitus (T1DM) has been reported as a plausible cause of vascular complications. Rotational thromboelastometry (ROTEM) assay enables the global assessment of coagulation status. This study aimed to assess hypercoagulability in children with T1DM using ROTEM. A total of 43 T1DM children (20 females and 23 males) aged 2-18 years and age- and sex-matched 30 healthy control subjects were enrolled in the study group. ROTEM assays [intrinsic TEM (INTEM) and extrinsic TEM (EXTEM)] were used to measure and analyze coagulation time (CT), clot formation time, maximum clot firmness (MCF). Glycated hemoglobin levels (HbA1c), diabetic complications, platelet count, prothrombin time (PT), activated partial thromboplastin time (aPTT), fibrinogen, and dimerized plasmin fragment D (D-dimer) were determined in the study group. The mean duration of T1DM diagnosis was 3.15 ± 2.49 years, and the mean HbA1c level was 8.94 ± 1.88% (74.29 ± 20.59 mmol/mol). None of the patients had macrovascular complications. Nephropathy was present in five patients. In the T1DM group, EXTEM-CT [80.00 (66.75-108.50)] was significantly lower, and EXTEM-MCF [65.00 (64.00-70.00)] and INTEM-MCF [65.00 (62.00-68.00)] were significantly higher than in the controls (p < 0.001, p = 0.026, and p = 0.004, respectively). However, the duration of T1DM and the degree of metabolic control had no influence on these parameters. Platelet count, PT, aPTT, fibrinogen and D-dimer levels were comparable between the diabetic patients and the control group. There were statistically significant correlations between fibrinogen level and INTEM-MCF and EXTEM-MCF (p < 0.001, p = 0.002 and r = 0.545, r = 0.454, respectively) This study shows that decreased levels of CT and increased levels of MCF suggest hypercoagulability in patients with T1DM. Further studies are needed to confirm our findings on a larger number of diabetic patients.
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Affiliation(s)
- Cigdem Binay
- Division of Pediatric Endocrinology, Department of Pediatrics, Osmangazi University School of Medicine, Eskisehir, Turkey
| | - Ayse Bozkurt Turhan
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Osmangazi University School of Medicine, Eskisehir, Turkey
| | - Enver Simsek
- Division of Pediatric Endocrinology, Department of Pediatrics, Osmangazi University School of Medicine, Eskisehir, Turkey
| | - Ozcan Bor
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Osmangazi University School of Medicine, Eskisehir, Turkey
| | - Olga Meltem Akay
- Department of Hematology and Oncology, Osmangazi University School of Medicine, Eskisehir, Turkey
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Stine JG, Argo CK, Pelletier SJ, Maluf DG, Caldwell SH, Northup PG. Advanced non-alcoholic steatohepatitis cirrhosis: A high-risk population for pre-liver transplant portal vein thrombosis. World J Hepatol 2017; 9:139-146. [PMID: 28217250 PMCID: PMC5295147 DOI: 10.4254/wjh.v9.i3.139] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 10/25/2016] [Accepted: 12/14/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To examine if liver transplant recipients with high-risk non-alcoholic steatohepatitis (NASH) are at increased risk for pre-transplant portal venous thrombosis.
METHODS Data on all liver transplants in the United States from February 2002 through September 2014 were analyzed. Recipients were sorted into three distinct groups: High-risk (age > 60, body mass index > 30 kg/m2, hypertension and diabetes), low-risk and non-NASH cirrhosis. Multivariable logistic regression models were constructed.
RESULTS Thirty-five thousand and seventy-two candidates underwent liver transplantation and of those organ recipients, 465 were transplanted for high-risk and 2775 for low-risk NASH. Two thousand six hundred and twenty-six (7.5%) recipients had pre-transplant portal vein thrombosis; 66 (14.2%) of the high-risk NASH group had portal vein thrombosis vs 328 (11.8%) of the low-risk NASH group. In general, all NASH recipients were less likely to be male or African American and more likely to be obese. In adjusted multivariable regression analyses, high-risk recipients had the greatest risk of pre-transplant portal vein thrombosis with OR = 2.11 (95%CI: 1.60-2.76, P < 0.001) when referenced to the non-NASH group.
CONCLUSION Liver transplant candidates with high-risk NASH are at the greatest risk for portal vein thrombosis development prior to transplantation. These candidates may benefit from interventions to decrease their likelihood of clot formation and resultant downstream hepatic decompensating events. Prospective study is needed.
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15
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Carvalhais V, Ruivães E, Pina-Cabral LB, Mesquita B, Oliveira F, Monteiro MC, Criado MB. Influence of genetic variations in platelet glycoproteins and eNOS in the development of arterial ischaemia of lower limbs in type 2 diabetes mellitus patients. Foot (Edinb) 2016; 29:42-44. [PMID: 27888791 DOI: 10.1016/j.foot.2016.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 10/21/2016] [Accepted: 10/23/2016] [Indexed: 02/04/2023]
Abstract
Endothelial and platelet dysfunction increase the atherothrombotic risk in diabetes mellitus patients. Therefore, arterial ischaemia of lower limbs is an important complication in diabetes mellitus. In the present work, type 2 diabetic patients were classified by a podiatrist into presence or absence of arterial ischaemia of lower limbs. Several polymorphisms in platelet glycoproteins and eNOS genes were evaluated. Our results suggest that the -5CC genotype in Kozak sequence of GPIbα may be associated with a higher risk of developing arterial ischaemia of lower limbs in type 2 diabetes mellitus patients.
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Affiliation(s)
- Virginia Carvalhais
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal.
| | - Ema Ruivães
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
| | - Luis Bernardo Pina-Cabral
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
| | - Bárbara Mesquita
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
| | - Flávio Oliveira
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
| | - Maria Céu Monteiro
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
| | - Maria Begoña Criado
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, 1317, 4585-116 Gandra, PRD, Portugal
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16
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Park SC, Liu-Stratton Y, Medeiros LC, McCune SA, Radin MJ. Effect of Male Sex and Obesity on Platelet Arachidonic Acid in Spontaneous Hypertensive Heart Failure Rats. Exp Biol Med (Maywood) 2016; 229:657-64. [PMID: 15229360 DOI: 10.1177/153537020422900710] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Sexual dimorphism is observed in the progression to congestive heart failure and, ultimately, in longevity in spontaneously hypertensive heart failure (SHHF) rats. As platelet activation may impact development of cardiovascular diseases, we studied the effects of obesity and sex on platelet polyunsaturated fatty acid (PUFA) profile and its relationship to platelet aggregation in 6-month-old SHHF rats. After a 24-hr fast, blood was obtained for measurement of platelet phospholipid omega-6 (n-6) and omega-3 (n-3) PUFA. Collagen-induced platelet aggregation was measured by whole-blood impedance aggregometry. Obese male (OM) SHHF had significantly more platelet arachidonic acid (AA) and total n-6 PUFA than lean males (LMs), lean females (LFs), or obese females (OFs). Platelet aggregation was enhanced in males compared to females, with OMs by 45% compared to OFs and with LMs by 28% compared to LFs. Though no difference was found between OFs and LFs, platelet agregation was increased in OMs by 20% compared to LMs. Though not significantly different, lag time to initiate platelet aggregation tended to be shortest in OMs and then, in Increasing duration, LMs, LFs, and OFs, suggesting that Platelets from male rats were quicker to aggregate than those from females. Platelet aggregation was correlated with platelet AA and total n-6 PUFA content. There was no relationship between n-3 PUFA and platelet aggregation. In SHHF rats, elevated AA and n-6 PUFA levels in platelets are associated with Chanced platelet aggregation. This relationship is potentiated by obesity and male sex.
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Affiliation(s)
- Sonhee C Park
- Department of Veterinary Biosciences, The Ohio State University, 1925 Coffey Road, Columbus, OH 43210, USA
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17
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Akinyemi AJ, Thomé GR, Morsch VM, Bottari NB, Baldissarelli J, de Oliveira LS, Goularte JF, Belló-Klein A, Oboh G, Schetinger MRC. Dietary Supplementation of Ginger and Turmeric Rhizomes Modulates Platelets Ectonucleotidase and Adenosine Deaminase Activities in Normotensive and Hypertensive Rats. Phytother Res 2016; 30:1156-63. [PMID: 27151061 DOI: 10.1002/ptr.5621] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/13/2016] [Accepted: 03/15/2016] [Indexed: 01/15/2023]
Abstract
Hypertension is associated with platelet alterations that could contribute to the development of cardiovascular complications. Several studies have reported antiplatelet aggregation properties of ginger (Zingiber officinale) and turmeric (Curcuma longa) with limited scientific basis. Hence, this study assessed the effect of dietary supplementation of these rhizomes on platelet ectonucleotidase and adenosine deaminase (ADA) activities in Nω-nitro-l-arginine methyl ester hydrochloride (l-NAME) induced hypertensive rats. Animals were divided into seven groups (n = 10): normotensive control rats; induced (l-NAME hypertensive) rats; hypertensive rats treated with atenolol (10 mg/kg/day); normotensive and hypertensive rats treated with 4% supplementation of turmeric or ginger, respectively. After 14 days of pre-treatment, the animals were induced with hypertension by oral administration of l-NAME (40 mg/kg/day). The results revealed a significant (p < 0.05) increase in platelet ADA activity and ATP hydrolysis with a concomitant decrease in ADP and AMP hydrolysis of l-NAME hypertensive rats when compared with the control. However, dietary supplementation with turmeric or ginger efficiently prevented these alterations by modulating the hydrolysis of ATP, ADP and AMP with a concomitant decrease in ADA activity. Thus, these activities could suggest some possible mechanism of the rhizomes against hypertension-derived complications associated to platelet hyperactivity. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ayodele Jacob Akinyemi
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology Akure, Private Mail Bag 704, Akure, 340001, Nigeria
- Department of Biochemistry, Afe Babalola University, Private Mail Bag 5454, Ado-Ekiti, Nigeria
- Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900, Santa Maria, RS, Brazil
| | - Gustavo Roberto Thomé
- Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900, Santa Maria, RS, Brazil
| | - Vera Maria Morsch
- Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900, Santa Maria, RS, Brazil
| | - Nathieli B Bottari
- Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900, Santa Maria, RS, Brazil
| | - Jucimara Baldissarelli
- Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900, Santa Maria, RS, Brazil
| | - Lizielle Souza de Oliveira
- Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900, Santa Maria, RS, Brazil
| | - Jeferson Ferraz Goularte
- Health Basic Sciences Institute, Department of Physiology, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Adriane Belló-Klein
- Health Basic Sciences Institute, Department of Physiology, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Ganiyu Oboh
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology Akure, Private Mail Bag 704, Akure, 340001, Nigeria
| | - Maria Rosa Chitolina Schetinger
- Programa de Pós Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Campus Universitário, Camobi, CEP 97105-900, Santa Maria, RS, Brazil
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18
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El Haouari M, Rosado JA. Medicinal Plants with Antiplatelet Activity. Phytother Res 2016; 30:1059-71. [PMID: 27062716 DOI: 10.1002/ptr.5619] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 02/29/2016] [Accepted: 03/12/2016] [Indexed: 12/25/2022]
Abstract
Blood platelets play an essential role in the hemostasis and wound-healing processes. However, platelet hyperactivity is associated to the development and the complications of several cardiovascular diseases. In this sense, the search for potent and safer antiplatelet agents is of great interest. This article provides an overview of experimental studies performed on medicinal plants with antiplatelet activity available through literature with particular emphasis on the bioactive constituents, the parts used, and the various platelet signaling pathways modulated by medicinal plants. From this review, it was suggested that medicinal plants with antiplatelet activity mainly belong to the family of Asteraceae, Rutaceae, Fabaceae, Lamiaceae, Zygophyllaceae, Rhamnaceae, Liliaceae, and Zingiberaceae. The antiplatelet effect is attributed to the presence of bioactive compounds such as polyphenols, flavonoids, coumarins, terpenoids, and other substances which correct platelet abnormalities by interfering with different platelet signalization pathways including inhibition of the ADP pathway, suppression of TXA2 formation, reduction of intracellular Ca(2+) mobilization, and phosphoinositide breakdown, among others. The identification and/or structure modification of the plant constituents and the understanding of their action mechanisms will be helpful in the development of new antiplatelet agents based on medicinal plants which could contribute to the prevention of thromboembolic-related disorders by inhibiting platelet aggregation. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Mohammed El Haouari
- Centre Régional des Métiers de l'Education et de la Formation de Taza (CRMEF - Taza), B.P. 1178, Taza Gare, Morocco.,Faculté Polydisciplinaire de Taza, Laboratoire des Matériaux, Substances Naturelles, Environnement et Modélisation (LMSNEM), Université Sidi Mohamed Ben Abdellah, B.P. 1223, Taza Gare, Morocco
| | - Juan A Rosado
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003, Cáceres, Spain
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Abstract
Store-operated Ca(2+) entry (SOCE) is mediated by the store-operated Ca(2+) channel (SOC) that opens upon depletion of internal Ca(2+) stores following activation of G protein-coupled receptors or receptor tyrosine kinases. Over the past two decades, the physiological and pathological relevance of SOCE has been extensively studied. Recently, accumulating evidence suggests associations of altered SOCE with diabetic complications. This review focuses on the implication of SOCE as it pertains to various complications resulting from diabetes. We summarize recent findings by us and others on the involvement of abnormal SOCE in the development of diabetic complications, such as diabetic nephropathy and diabetic vasculopathy. The underlying mechanisms that mediate the diabetes-associated alterations of SOCE are also discussed. The SOCE pathway may be considered as a potential therapeutic target for diabetes-associated diseases.
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Affiliation(s)
- Sarika Chaudhari
- Department of Integrative Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth 76107, TX, USA
| | - Rong Ma
- Department of Integrative Physiology and Anatomy, University of North Texas Health Science Center, Fort Worth 76107, TX, USA
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Merighi S, Borea PA, Gessi S. Adenosine receptors and diabetes: Focus on the A2B adenosine receptor subtype. Pharmacol Res 2015; 99:229-36. [DOI: 10.1016/j.phrs.2015.06.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Revised: 06/23/2015] [Accepted: 06/23/2015] [Indexed: 12/21/2022]
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21
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Smani T, Shapovalov G, Skryma R, Prevarskaya N, Rosado JA. Functional and physiopathological implications of TRP channels. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2015; 1853:1772-82. [DOI: 10.1016/j.bbamcr.2015.04.016] [Citation(s) in RCA: 289] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 04/22/2015] [Accepted: 04/24/2015] [Indexed: 10/23/2022]
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Soma P, Pretorius E. Interplay between ultrastructural findings and atherothrombotic complications in type 2 diabetes mellitus. Cardiovasc Diabetol 2015; 14:96. [PMID: 26228646 PMCID: PMC4521497 DOI: 10.1186/s12933-015-0261-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 07/19/2015] [Indexed: 12/27/2022] Open
Abstract
Accelerated atherosclerosis is the main underlying factor contributing to the high risk of atherothrombotic events in patients with diabetes mellitus and atherothrombotic complications are the main cause of mortality. Like with many bodily systems, pathology is observed when the normal processes are exaggerated or uncontrolled. This applies to the processes of coagulation and thrombosis as well. In diabetes, in fact, the balance between prothrombotic and fibrinolytic factors is impaired and thus the scale is tipped towards a prothrombotic and hypofibrinolytic milieu, which in association with the vascular changes accompanying plaque formation and ruptures, increases the prevalence of ischaemic events such as angina and myocardial infarction. Apart from traditional, modifiable risk factors for cardiovascular disease like hypertension, smoking, elevated cholesterol; rheological properties, endogenous fibrinolysis and impaired platelet activity are rapidly gaining significance in the pathogenesis of atherosclerosis especially in diabetic subjects. Blood clot formation represents the last step in the athero-thrombotic process, and the structure of the fibrin network has a role in determining predisposition to cardiovascular disease. It is no surprise that just like platelets and fibrin networks, erythrocytes have been shown to play a role in coagulation as well. This is in striking contrast to their traditional physiological role of oxygen transport. In fact, emerging evidence suggests that erythrocytes enhance functional coagulation properties and platelet aggregation. Among the spectrum of haematological abnormalities in diabetes, erythrocyte aggregation and decreased deformability of erythrocytes predominate. More importantly, they are implicated in the pathogenesis of microvascular complications of diabetes. The morphology of platelets, fibrin networks and erythrocytes are thus essential role players in unravelling the pathogenesis of cardiovascular complications in diabetic subjects.
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Affiliation(s)
- Prashilla Soma
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.
| | - Etheresia Pretorius
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.
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Malachowska B, Tomasik B, Szadkowska A, Baranowska-Jazwiecka A, Wegner O, Mlynarski W, Fendler W. Altered platelets' morphological parameters in children with type 1 diabetes – a case-control study. BMC Endocr Disord 2015; 15:17. [PMID: 25886514 PMCID: PMC4391729 DOI: 10.1186/s12902-015-0011-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 03/26/2015] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Platelet hyperreactivity is a factor which contributes towards increased risk of cardiovascular events in adults with type 2 diabetes (T2DM). However, little is known about platelets' disturbances among children with type 1 diabetes (T1DM). The aim of the study was to investigate whether platelets' morphology or function are altered in children with type 1 diabetes, potentially predisposing them to cardiovascular events in the future. METHODS The study group consisted of 389 children with T1DM during the 2008-2010 period. Patients with acute diabetes complications and ongoing infections were excluded from the study. An equinumerous (N = 389), age and sex-matched control group was assembled from children undergoing routine, minor surgical procedures in the same hospital. Platelet: count (PLT), mean volume (MPV), distribution width (PDW) and platelet large cell ratio (P-LCR) as well as HbA1c levels were measured. For statistical analysis we used Chi-square tests, the student's t-test, one-way analysis of variance (ANOVA), the Pearson's correlation coefficient and linear regression models in order to adjust for covariates. RESULTS MPV, PDW and P-LCR were significantly higher among children with diabetes in comparison with the control group (MPV 10.47+/-0.85 fL vs 10.23+/-0.94 fL, p = 0.0007; PDW 12.09+/-1.80% vs 11.66+/-1.90%, p = 0.0032; P-LCR 28.21+/-6.15% vs 26.29+/-6.38%, p < 0.0001). PLT however, were shown to be similar (263.55+/-60.04 vs 268.77+/-65.78 10(3)/μl; p = 0.5637). In both cases and controls age was inversely correlated with platelet count (for study group: r = -0.30, p < 0.0001; for control group: r = -0.34, p < 0.0001), positively correlated with MPVs (r = 0.20, p < 0.0001; r = 0.26, p < 0.0001), PDW (r = 0.25, p < 0.0001 and r = 0.24, p < 0.0001) and P-LCR (r = 0.26, p < 0.0001; r = 0.26, p < 0.0001). After adjustment for confounding factors, higher platelet counts were associated with poorer metabolic control (beta = 0.20; 0.0001). CONCLUSIONS Platelets of paediatric patients with T1DM show morphological evidence of hyperreactivity (higher MPV, PDW and P-LCR), while poorer metabolic control increases their number potentially predisposing the patients to future cardiovascular events.
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Affiliation(s)
- Beata Malachowska
- Department of Paediatrics, Oncology, Haematology and Diabetology, Medical University of Lodz, 36/50 Sporna St., 91-738, Lodz, Poland.
| | - Bartlomiej Tomasik
- Department of Paediatrics, Oncology, Haematology and Diabetology, Medical University of Lodz, 36/50 Sporna St., 91-738, Lodz, Poland.
| | - Agnieszka Szadkowska
- Department of Paediatrics, Oncology, Haematology and Diabetology, Medical University of Lodz, 36/50 Sporna St., 91-738, Lodz, Poland.
| | - Anna Baranowska-Jazwiecka
- Department of Paediatrics, Oncology, Haematology and Diabetology, Medical University of Lodz, 36/50 Sporna St., 91-738, Lodz, Poland.
| | - Olga Wegner
- Department of Paediatrics, Oncology, Haematology and Diabetology, Medical University of Lodz, 36/50 Sporna St., 91-738, Lodz, Poland.
| | - Wojciech Mlynarski
- Department of Paediatrics, Oncology, Haematology and Diabetology, Medical University of Lodz, 36/50 Sporna St., 91-738, Lodz, Poland.
| | - Wojciech Fendler
- Department of Paediatrics, Oncology, Haematology and Diabetology, Medical University of Lodz, 36/50 Sporna St., 91-738, Lodz, Poland.
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Kallionpää H, Elo LL, Laajala E, Mykkänen J, Ricaño-Ponce I, Vaarma M, Laajala TD, Hyöty H, Ilonen J, Veijola R, Simell T, Wijmenga C, Knip M, Lähdesmäki H, Simell O, Lahesmaa R. Innate immune activity is detected prior to seroconversion in children with HLA-conferred type 1 diabetes susceptibility. Diabetes 2014; 63:2402-14. [PMID: 24550192 DOI: 10.2337/db13-1775] [Citation(s) in RCA: 136] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The insult leading to autoantibody development in children who will progress to develop type 1 diabetes (T1D) has remained elusive. To investigate the genes and molecular pathways in the pathogenesis of this disease, we performed genome-wide transcriptomics analysis on a unique series of prospective whole-blood RNA samples from at-risk children collected in the Finnish Type 1 Diabetes Prediction and Prevention study. We studied 28 autoantibody-positive children, out of which 22 progressed to clinical disease. Collectively, the samples covered the time span from before the development of autoantibodies (seroconversion) through the diagnosis of diabetes. Healthy control subjects matched for date and place of birth, sex, and HLA-DQB1 susceptibility were selected for each case. Additionally, we genotyped the study subjects with Immunochip to identify potential genetic variants associated with the observed transcriptional signatures. Genes and pathways related to innate immunity functions, such as the type 1 interferon (IFN) response, were active, and IFN response factors were identified as central mediators of the IFN-related transcriptional changes. Importantly, this signature was detected already before the T1D-associated autoantibodies were detected. Together, these data provide a unique resource for new hypotheses explaining T1D biology.
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Affiliation(s)
- Henna Kallionpää
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, FinlandTurku Doctoral Programme of Biomedical Sciences, Turku, FinlandThe Finnish Centre of Excellence in Molecular Systems Immunology and Physiology Research, Helsinki, Finland
| | - Laura L Elo
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, FinlandBiomathematics Research Group, Department of Mathematics, University of Turku, Turku, Finland
| | - Essi Laajala
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, FinlandThe Finnish Centre of Excellence in Molecular Systems Immunology and Physiology Research, Helsinki, FinlandDepartment of Information and Computer Science, Aalto University School of Science, Aalto, FinlandThe National Graduate School in Informational and Structural Biology, Turku, Finland
| | - Juha Mykkänen
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, FinlandThe Finnish Centre of Excellence in Molecular Systems Immunology and Physiology Research, Helsinki, FinlandDepartment of Pediatrics, University of Turku, Turku, FinlandDepartment of Pediatrics, Turku University Hospital, Turku, Finland
| | - Isis Ricaño-Ponce
- Department of Genetics, University of Groningen, University Medical Centre, Groningen, the Netherlands
| | - Matti Vaarma
- Department of Signal Processing, Tampere University of Technology, Tampere, Finland
| | - Teemu D Laajala
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland
| | - Heikki Hyöty
- Department of Virology, University of Tampere, Tampere, FinlandFimlab Laboratories, Pirkanmaa Hospital District, Tampere, Finland
| | - Jorma Ilonen
- Immunogenetics Laboratory, University of Turku, Turku, FinlandDepartment of Clinical Microbiology, University of Eastern Finland, Kuopio, Finland
| | - Riitta Veijola
- Department of Pediatrics, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Tuula Simell
- The Finnish Centre of Excellence in Molecular Systems Immunology and Physiology Research, Helsinki, FinlandDepartment of Pediatrics, University of Turku, Turku, Finland
| | - Cisca Wijmenga
- Department of Genetics, University of Groningen, University Medical Centre, Groningen, the Netherlands
| | - Mikael Knip
- The Finnish Centre of Excellence in Molecular Systems Immunology and Physiology Research, Helsinki, FinlandChildren's Hospital, University of Helsinki and Helsinki University Central Hospital, Helsinki, FinlandFolkhälsan Research Center, Helsinki, FinlandDepartment of Pediatrics, Tampere University Hospital, Tampere, Finland
| | - Harri Lähdesmäki
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, FinlandThe Finnish Centre of Excellence in Molecular Systems Immunology and Physiology Research, Helsinki, FinlandDepartment of Information and Computer Science, Aalto University School of Science, Aalto, Finland
| | - Olli Simell
- The Finnish Centre of Excellence in Molecular Systems Immunology and Physiology Research, Helsinki, FinlandDepartment of Pediatrics, University of Turku, Turku, FinlandDepartment of Pediatrics, Turku University Hospital, Turku, Finland
| | - Riitta Lahesmaa
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, FinlandThe Finnish Centre of Excellence in Molecular Systems Immunology and Physiology Research, Helsinki, Finland
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25
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Kongkhum S, Fungkrajai M, Prajan S, Bordeerat NK, Piumngam K, Siripurkpong P. High glucose enhances CD39 expression in vascular endothelial cells. ASIAN BIOMED 2014. [DOI: 10.5372/1905-7415.0802.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Abstract
Background: Diabetes mellitus (DM) patients lose their ability to control normal blood glucose levels, resulting in high blood glucose levels (hyperglycemia). Hyperglycemia causes DM complications. This involves responses of vascular endothelial cells (VECs) to hyperglycemia, affecting inflammatory process and platelet activity. Ecto-enzyme CD39 is expressed on VECs, catalyzing the hydrolysis of ATP and ADP to AMP and, consequently, regulating inflammatory process and platelet activation.
Objective: We studied whether high glucose concentration has an effect on CD39 expression on VECs.
Methods: Cultured human umbilical vein endothelial cells (HUVEC) were used as a model of study. HUVEC were cultured in different glucose conditions (4, 9, 24, and 34 mM) for 24 hours. Cell viability was assessed using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT)-based assay and expression of CD39 was examined by using SDS-PAGE and western blot techniques.
Results: HUVEC were cultured in normal (4 and 9 mM) or high (24 and 34 mM) glucose concentrations for short term (24 hours). The results showed that high glucose (24 and 34 mM) reduced cell viability to 89.5 ± 11.3 and 86.3 ± 13.5 (mean ± SD), compared with control (4 mM), respectively. High glucose also induced increases in CD39 expression in HUVEC.
Conclusion: High glucose decreases cell viability and increases CD39 expression in HUVEC, suggesting involvement of CD39 in cell responses to high glucose.
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Affiliation(s)
- Sudawadee Kongkhum
- Faculty of Allied Health Sciences, Thammasat University, Pathum Thani 12120, Thailand
| | - Mudtika Fungkrajai
- Faculty of Allied Health Sciences, Thammasat University, Pathumthani 12120, Thailand
| | - Sompoch Prajan
- Faculty of Allied Health Sciences, Thammasat University, Pathumthani 12120, Thailand
| | | | - Kanyanath Piumngam
- Faculty of Allied Health Sciences, Thammasat University, Pathumthani 12120, Thailand
| | - Pilaiwan Siripurkpong
- Faculty of Allied Health Sciences, Thammasat University, Pathumthani 12120, Thailand
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26
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Suzuki S, Kudo H, Koyama T. Assessment of spontaneous platelet aggregation using laser light scattering in healthy subjects: an attempt to standardize. Int J Lab Hematol 2014; 36:676-85. [PMID: 24661348 DOI: 10.1111/ijlh.12208] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 02/10/2014] [Indexed: 11/30/2022]
Abstract
INTRODUCTION When measuring platelet aggregation using laser light scattering, small aggregates forming without the addition of agonists may be observed. This event is called 'spontaneous platelet aggregation (SPA)'. The platelet hyperactivity observed in arterial thrombotic diseases can be detected with relative ease by measuring SPA. Standardization is urgently needed because of differences between measurement conditions among various laboratories. METHODS We conducted a systematic study of factors that affect SPA measurement, compared SPA results to flow cytometry detection of surface antigens expressed on activated platelet membranes (P-selectin, activated glycoprotein IIb/IIIa), and determined conditions that yield stable measurements. RESULTS AND CONCLUSIONS We evaluated results from 125 healthy volunteers and established conditions for a stable measurement of SPA. As the occurrence of SPA tended to increase with age, we determined conditions valid for subjects aged 20-60 years. Blood should be collected using a syringe, and the sample should be prepared after allowing the whole blood to rest for 30 min after collection. To isolate platelet-rich plasma, a 2-mL tube should be used and centrifuged at 150 g. The sample should be stored at room temperature, the platelet count of the sample should be (250 ± 10) × 10(9) /L, and the measurement should be completed within 90 min of blood collection.
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Affiliation(s)
- S Suzuki
- Laboratory Molecular Genetics of Hematology, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan; Department of Clinical Laboratory Medicine, Faculty of Health Science Technology, Bunkyo Gakuin University, Bunkyo-ku, Tokyo, Japan
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27
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Fuentes E, Rojas A, Palomo I. Role of multiligand/RAGE axis in platelet activation. Thromb Res 2014; 133:308-14. [PMID: 24296115 DOI: 10.1016/j.thromres.2013.11.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/08/2013] [Accepted: 11/12/2013] [Indexed: 02/07/2023]
Abstract
In the context of plaque progression, platelet hyperactivity associated with hyperlipidemia contributes to the development of a pro-thrombotic state. In this context, it has been demonstrated that advanced glycation end products (AGEs) significantly increases platelet activation and receptor for AGEs (RAGE) expression at the platelet surface membrane. In addition to AGEs, other ligands (S100, HMGB1 and amyloid β, among others) of RAGE have raised particular attention in platelet activation. Therefore, in this article we describe platelet hyperactivity by AGEs via RAGE-independent and RAGE-dependent pathways.
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Affiliation(s)
- Eduardo Fuentes
- 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
- 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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Abstract
Atherothrombotic complications are important causes of morbidity and mortality in diabetic patients. Diabetes has been considered to be a prothrombotic status. Several factors contribute to the prothrombotic condition, such as increasing coagulation, impaired fibrinolysis, endothelial dysfunction, and platelet hyperreactivity. Among the factors that contribute to the prothrombotic status in diabetes, altered platelet function plays a crucial role. Although understanding platelet function abnormalities in diabetes still remains as a challenge, more attention should be focused on platelet function for effective management and the prediction of atherothrombotic events in diabetic patients. This review will provide an overview on the current status of knowledge of platelet function abnormalities and clinical marker of platelet hyperreactivity in patients with diabetes.
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Affiliation(s)
- Jin Hwa Kim
- Department of Endocrinology and Metabolism, Chosun University Hospital, Chosun University School of Medicine, Gwangju, Korea
| | - Hak Yeon Bae
- Department of Endocrinology and Metabolism, Chosun University Hospital, Chosun University School of Medicine, Gwangju, Korea
| | - Sang Yong Kim
- Department of Endocrinology and Metabolism, Chosun University Hospital, Chosun University School of Medicine, Gwangju, Korea
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29
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Santhakumar AB, Bulmer AC, Singh I. A review of the mechanisms and effectiveness of dietary polyphenols in reducing oxidative stress and thrombotic risk. J Hum Nutr Diet 2013; 27:1-21. [PMID: 24205990 DOI: 10.1111/jhn.12177] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Dietary sources of polyphenols, which are derivatives and/or isomers of flavones, isoflavones, flavonols, catechins and phenolic acids, possess antioxidant properties and therefore might be important in preventing oxidative-stress-induced platelet activation and attenuating adverse haemostatic function. Free radicals, including reactive oxygen and nitrogen species, promote oxidative stress, leading to platelet hyperactivation and the risk of thrombosis. The consumption of antioxidant/polyphenol rich foods might therefore impart anti-thrombotic and cardiovascular protective effects via their inhibition of platelet hyperactivation or aggregation. Most commonly-used anti-platelet drugs such as aspirin block the cyclooxygenase (COX)-1 pathway of platelet activation, similar to the action of antioxidants with respect to neutralising hydrogen peroxide (H2 O2 ), with a similar effect on thromboxane production via the COX-1 pathway. Polyphenols also target various additional platelet activation pathways (e.g. by blocking platelet-ADP, collagen receptors); thus alleviating fibrinogen binding to platelet surface (GPIIb-IIIa) receptors, reducing further platelet recruitment for aggregation and inhibiting platelet degranulation. As a result of the ability of polyphenols to target additional pathways of platelet activation, they may have the potential to substitute or complement currently used anti-platelet drugs in sedentary, obese, pre-diabetic or diabetic populations who can be resistant or sensitive to pharmacological anti-platelet therapy.
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Affiliation(s)
- A B Santhakumar
- Heart Foundation Research Centre, Griffith Health Institute, Griffith University, Gold Coast Campus, Qld, Australia
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30
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Diabetes Mellitus. Platelets 2013. [DOI: 10.1016/b978-0-12-387837-3.00035-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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31
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Zhu W, Li W, Silverstein RL. Advanced glycation end products induce a prothrombotic phenotype in mice via interaction with platelet CD36. Blood 2012; 119:6136-44. [PMID: 22431576 PMCID: PMC3383021 DOI: 10.1182/blood-2011-10-387506] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Accepted: 03/12/2012] [Indexed: 12/16/2022] Open
Abstract
Diabetes mellitus has been associated with platelet hyperreactivity, which plays a central role in the hyperglycemia-related prothrombotic phenotype. The mechanisms responsible for this phenomenon are not established. In the present study, we investigated the role of CD36, a class-B scavenger receptor, in this process. Using both in vitro and in vivo mouse models, we demonstrated direct and specific interactions of platelet CD36 with advanced glycation end products (AGEs) generated under hyperglycemic conditions. AGEs bound to platelet CD36 in a specific and dose-dependent manner, and binding was inhibited by the high-affinity CD36 ligand NO(2)LDL. Cd36-null platelets did not bind AGE. Using diet- and drug-induced mouse models of diabetes, we have shown that cd36-null mice had a delayed time to the formation of occlusive thrombi compared with wild-type (WT) in a FeCl(3)-induced carotid artery injury model. Cd36-null mice had a similar level of hyperglycemia and a similar level of plasma AGEs compared with WT mice under this condition, but WT mice had more AGEs incorporated into thrombi. Mechanistic studies revealed that CD36-dependent JNK2 activation is involved in this prothrombotic pathway. Therefore, the results of the present study couple vascular complications in diabetes mellitus with AGE-CD36-mediated platelet signaling and hyperreactivity.
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MESH Headings
- Animals
- Asymptomatic Diseases
- Blood Platelets/drug effects
- Blood Platelets/metabolism
- CD36 Antigens/genetics
- CD36 Antigens/metabolism
- CD36 Antigens/physiology
- Diabetes Mellitus, Experimental/blood
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetic Angiopathies/blood
- Diabetic Angiopathies/genetics
- Diabetic Angiopathies/metabolism
- Diabetic Angiopathies/pathology
- Diet, Atherogenic
- Glycation End Products, Advanced/metabolism
- Glycation End Products, Advanced/pharmacology
- Glycation End Products, Advanced/physiology
- Hyperglycemia/blood
- Hyperglycemia/etiology
- Hyperglycemia/genetics
- Hyperglycemia/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Phenotype
- Platelet Aggregation/genetics
- Platelet Aggregation/physiology
- Protein Binding
- Streptozocin
- Thrombosis/etiology
- Thrombosis/metabolism
- Thrombosis/pathology
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Affiliation(s)
- Weifei Zhu
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
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32
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Jardín I, López JJ, Zbidi H, Bartegi A, Salido GM, Rosado JA. Attenuated store-operated divalent cation entry and association between STIM1, Orai1, hTRPC1 and hTRPC6 in platelets from type 2 diabetic patients. Blood Cells Mol Dis 2011; 46:252-60. [PMID: 21303733 DOI: 10.1016/j.bcmd.2010.12.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Revised: 11/08/2010] [Accepted: 12/20/2010] [Indexed: 12/11/2022]
Abstract
Agonist-evoked Ca(2+) entry has been reported to be enhanced in platelets from type 2 diabetic patients, which results in altered platelet responsiveness and cardiovascular complications. The present study is aimed to investigate whether store-operated divalent cation entry, a major Ca(2+) entry pathway, is altered in platelets from diabetic patients. Store-operated divalent cation entry was estimated by determination of Mn(2+) entry. Association between STIM1, Orai1, hTRPC1 and hTRPC6 was detected by co-immunoprecipitation and Western blotting. In the presence of specific purinergic and serotoninergic receptor antagonists Mn(2+) entry, induced by thapsigargin (TG), was reduced in platelets from diabetic donors as compared to healthy controls. Treatment with TG or the agonist thrombin enhanced co-immunoprecipitation of STIM1 with Orai1, hTRPC1 and hTRPC6 in platelets from healthy donors, a response that was significantly reduced in platelets from diabetic patients. Our results indicate that store-operated divalent cation entry is reduced in platelets from type 2 diabetic subjects, which is likely mediated by impairment of the association of STIM1 with the channel subunits Orai1, hTRPC1 and hTRPC6 and might be involved in the pathogenesis of the altered platelet responsiveness observed in diabetic patients.
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Affiliation(s)
- Isaac Jardín
- Department of Physiology, Cell Physiology Research Group, University of Extremadura, Cáceres. Spain
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33
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Beijers HJBH, Ferreira I, Spronk HMH, Bravenboer B, Dekker JM, Nijpels G, ten Cate H, Stehouwer CDA. Impaired glucose metabolism and type 2 diabetes are associated with hypercoagulability: potential role of central adiposity and low-grade inflammation--the Hoorn Study. Thromb Res 2011; 129:557-62. [PMID: 21851966 DOI: 10.1016/j.thromres.2011.07.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Revised: 06/30/2011] [Accepted: 07/18/2011] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Type 2 diabetes (DM2) is associated with greater risk for cardiovascular disease (CVD), which may, at least partially, be explained by prothrombotic alterations. We therefore investigated; first, the extent to which individuals with impaired glucose metabolism (IGM) and/or DM2 had greater levels of thrombin generation than those with normal glucose metabolism (NGM); and second, whether any differences were independent of other cardiovascular risk factors, such as smoking, hypertension, dyslipidaemia, (micro)albuminuria, glycemic control and (central) adiposity, and/or were potentially 'mediated' by low-grade inflammation (high-sensitivity C-reactive protein (hsCRP)). MATERIALS AND METHODS We studied 744 individuals from the Hoorn Study (275 NGM, 176 IGM and 293 DM2, mean age 68.6 ± 7.1 years). Thrombin generation in platelet-poor plasma was measured using the Calibrated Automated Thrombogram and three parameters were derived: lag time, peak height and endogenous thrombin potential (ETP). Data were analyzed with multiple linear regression analyses. RESULTS After adjustment for age, sex, prior CVD and smoking status, individuals with IGM or DM2 had a longer lag time [ß = 0.14 min (95% CI: 0.02; 0.26)], higher peak height [ß = 7.29 nM (-1.33; 15.91)] and ETP [ß = 35.65 nM*min (0.97; 70.34)] than those with NGM. These differences were attenuated to ß = 0.06 min (-0.07; 0.19), 3.82 nM (-5.46; 13.10) and 16.34 nM*min (-20.92; 53.59), respectively, when further adjusted for waist circumference and hsCRP. CONCLUSION Individuals with IGM or DM2 had up to 4% higher thrombin generation compared with NGM, which may be explained, to a great extent, by the greater levels of central adiposity and related low-grade inflammation characterizing these individuals.
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Zbidi H, Jardin I, Bartegi A, Salido GM, Rosado JA. Ca2+ leakage rate from agonist-sensitive intracellular pools is altered in platelets from patients with type 2 diabetes. Platelets 2011; 22:284-93. [PMID: 21526890 DOI: 10.3109/09537104.2010.528813] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Platelets from patients with type 2 diabetes show abnormalities in intracellular Ca(2+) homeostasis that are involved in platelet hyperaggregability and the development of thrombotic complications. Different Ca(2+) transport mechanisms have been reported to be altered in platelets from patients with type 2 diabetes, including the sarcoendoplasmic and plasma membrane Ca(2+)-ATPases, plasma membrane Ca(2+) channels, or the Na(+)/Ca(2+) exchanger. Here, we have investigated whether passive Ca(2+) leak from the stores is altered in platelets from patients with type 2 diabetes. Resting cytosolic Ca(2+) concentration ([Ca(2+)](i)) was found to be greater in platelets from patients with type 2 diabetes than in healthy controls. In a Ca(2+)-free medium, platelet stimulation with thrombin or ADP evokes a rapid and transient increase in [Ca(2+)](i) that was found to be greater in patients with diabetes than in healthy controls. Sequential or combined inhibition of Ca(2+) extrusion and Ca(2+) sequestration into the stores reduced the difference between the responses to agonists in patients with diabetes and healthy controls, although agonist-induced Ca(2+) efflux from the stores was still significantly greater in patients with diabetes. Ca(2+) leak from the dense tubular system or the acidic stores, induced by a low concentration of thapsigargin or 2,5-di-(t-butyl)-1,4-hydroquinone (TBHQ), respectively, was clearly greater in patients with diabetes than in controls, and was not significantly modified by treatment with 2-APB. These findings indicate that passive Ca(2+) leakage rate from the intracellular stores in platelets is significantly enhanced in patients with type 2 diabetes mellitus and this might explain the increased resting [Ca(2+)](i).
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Affiliation(s)
- Hanene Zbidi
- Unité de Recherche de Biochimie, Institute Supérieur de Biotechnologie, 5019-Monastir, Tunisia
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35
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Losso JN, Bawadi HA, Chintalapati M. Inhibition of the formation of advanced glycation end products by thymoquinone. Food Chem 2011; 128:55-61. [PMID: 25214329 DOI: 10.1016/j.foodchem.2011.02.076] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2009] [Revised: 02/18/2011] [Accepted: 02/21/2011] [Indexed: 01/01/2023]
Abstract
The inhibitory activity of thymoquinone, a major quinone from black seeds (Nigella sativa) against the formation of advanced glycation end products was studied using the hemoglobin-δ-gluconolactone, human serum albumin-glucose, and the N-acetyl-glycyl-lysine methyl ester-ribose assays. A comparison was made with the inhibitory activity of aminoguanidine. The cytotoxicity of thymoquinone was studied by the release of lactate dehydrogenase from platelets and the levels of plasma thiols. At 20μM, thymoquinone inhibited 39% of hemoglobin glycation, 82% of post-Amadori glycation products, reduced methyglyoxal-mediated human serum albumin glycation by 68%, inhibited 78% of late glycation end products. Aminoguanidine at 10mM was less effective than thymoquinone. The IC50 for thymoquinone and aminoguanidine were 7.2μM and 1.25mM, respectively. Thymoquinone at 20-50μM was not toxic to platelet lactate dehydrogenase and plasma thiols. The potential of thymoquinone in food applications is discussed.
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Affiliation(s)
- Jack N Losso
- Food Protein Biotechnology Laboratory, Department of Food Science, Louisiana State University Agricultural Center, 111 Food Science Building, Baton Rouge, LA 70803, United States.
| | - Hiba A Bawadi
- Food Protein Biotechnology Laboratory, Department of Food Science, Louisiana State University Agricultural Center, 111 Food Science Building, Baton Rouge, LA 70803, United States
| | - Madhavi Chintalapati
- Food Protein Biotechnology Laboratory, Department of Food Science, Louisiana State University Agricultural Center, 111 Food Science Building, Baton Rouge, LA 70803, United States
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36
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Galan C, Jardín I, Dionisio N, Salido G, Rosado JA. Role of oxidant scavengers in the prevention of Ca²+ homeostasis disorders. Molecules 2010; 15:7167-87. [PMID: 20953160 PMCID: PMC6259185 DOI: 10.3390/molecules15107167] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 09/09/2010] [Accepted: 10/14/2010] [Indexed: 02/07/2023] Open
Abstract
A number of disorders, such as Alzheimer disease and diabetes mellitus, have in common the alteration of the redox balance, resulting in an increase in reactive oxygen species (ROS) generation that might lead to the development of apoptosis and cell death. It has long been known that ROS can significantly alter Ca²+ mobilization, an intracellular signal that is involved in the regulation of a wide variety of cellular functions. Cells have a limited capability to counteract the effects of oxidative stress, but evidence has been provided supporting the beneficial effects of exogenous ROS scavengers. Here, we review the effects of oxidative stress on intracellular Ca²+ homeostasis and the role of antioxidants in the prevention and treatment of disorders associated to abnormal Ca²+ mobilization induced by ROS.
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Affiliation(s)
| | | | | | | | - Juan A. Rosado
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +34 927257139; Fax: +34 927257110
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37
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Kudolo GB, Wang W, Dorsey S, Blodgett J. Oral Ingestion ofGinkgo bilobaExtract Reduces Thiobarbituric Acid Reacting (TBAR) Substances in Washed Platelets of Healthy Subjects. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/j157v03n04_01] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Malondialdehyde and coenzyme Q10 in platelets and serum in type 2 diabetes mellitus: correlation with glycemic control. Blood Coagul Fibrinolysis 2009; 20:248-51. [PMID: 19530339 DOI: 10.1097/mbc.0b013e3283254549] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This study investigated the level of platelet malondialdehyde (MDA) as a marker of oxidative stress and coenzyme Q10 (CoQ10) as an index of antioxidant capacity in patients with type 2 diabetes mellitus and their relation to glycemic control. The study group consisted of 28 patients with type 2 diabetes mellitus (10 men and 18 women) with mean age of 48 +/- 2 years. Ten healthy individuals, age and sex matched with the patients, were used as a control group. Laboratory investigations in the form of lipid profile, glycosylated hemoglobin, plasma MDA, platelet MDA and plasma CoQ10 were assessed for all patients and controls. The study revealed that plasma and platelet MDA, as a marker of oxidative stress, were significantly higher in diabetic patients than in controls. The level of CoQ10, as antioxidant capacity, was significantly lower in diabetic patients than in controls. There was a negative correlation between plasma CoQ10 concentrations and glycosylated hemoglobin. Type 2 diabetic patients are at increased risk of oxidative stress manifested by increased plasma MDA as well as platelet MDA and decreased CoQ10, and this oxidative stress increases with poor glycemic control.
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Hanai Y, Adachi S, Yasuda I, Takai S, Matsushima-Nishiwaki R, Kato H, Enomoto Y, Akamatsu S, Sakakibara S, Ogura S, Iwama T, Kozawa O, Tokuda H. Collagen-induced p38 MAP kinase activation is a biomarker of platelet hyper-aggregation in patients with diabetes mellitus. Life Sci 2009; 85:386-94. [PMID: 19631227 DOI: 10.1016/j.lfs.2009.07.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2009] [Revised: 06/29/2009] [Accepted: 07/09/2009] [Indexed: 11/17/2022]
Abstract
AIMS We developed a novel method for diagnosing platelet hyper-aggregation in patients with type 2 diabetes mellitus (DM). MAIN METHODS By measuring the dose response of platelet aggregation to collagen, an individual ED(50) was determined. Based on the normal range identified in non-DM controls (mean+/-two SEM=0.460+/-0.082 microg/ml, n=47), type 2 DM patients were divided into high ED(50) (ED(50)>0.542 microg/ml; n=32: group I) or low ED(50) groups (ED(50)<0.378 microg/ml; n=32; group II). In these patients, collagen-induced levels of phospho-p38 MAPK and phospho-p44/p42 MAPK were measured using Western blots and enzyme-linked immunosorbent assays (ELISA). KEY FINDINGS In group II, the collagen (0.3 and 1 microg/ml)-induced levels of both phospho-p38 MAPK and phospho-p44/p42 MAPK measured by western blot analysis were found to be significantly higher than those in group I. The individual ED(50) was found to be significantly correlated with the collagen-induced levels of phospho-p38 MAPK and phospho-p44/p42 MAPK. This correlation was also observed when ELISA was used to measure phospho-p38 MAPK levels in a different population of DM patients (n=90). SIGNIFICANCE These results strongly suggest that the phosphorylation levels of collagen-induced p38 MAPK and p44/p42 MAPK represent the hyperaggregability of platelets and that the quantification of phospho-p38 MAPK can be a new and useful diagnostic biomarker of platelet hyper-aggregation in DM patients.
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Affiliation(s)
- Yoshiteru Hanai
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, Japan
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Jardín I, Redondo PC, Salido GM, Pariente JA, Rosado JA. Endogenously generated reactive oxygen species reduce PMCA activity in platelets from patients with non-insulin-dependent diabetes mellitus. Platelets 2009; 17:283-8. [PMID: 16928598 DOI: 10.1080/09537100600745187] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Intracellular Ca2+ homeostasis in platelets of patients with non-insulin-dependent diabetes mellitus (NIDDM) has been reported to be altered, leading to an increased adhesiveness and spontaneous aggregation. Among the disturbed Ca2+ mechanism in platelets from NIDDM subjects, a reduced Ca2+ extrusion by the plasma membrane Ca2+-ATPase (PMCA) is especially relevant, maintaining an elevated cytosolic free Ca2+ concentration that results in platelet hypersensitivity. Here we show that treatment of platelets from NIDDM patients with 300 U/mL catalase or 5 mM D-mannitol, which prevent H2O2- and hydroxyl radicals-mediated oxidative stress, respectively, increases Ca2+ extrusion after treatment with thapsigargin (TG) plus ionomycin (Iono). In contrast, 1 mM trolox, a scavenger of ONOO-, did not alter TG + Iono-induced response. Catalase and D-mannitol reversed the enhanced tyrosine phosphorylation of PMCA induced by TG + Iono in NIDDM patients. These findings open up new horizon for the development of therapeutic strategies to palliate cardiovascular disorders in NIDDM.
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Affiliation(s)
- Isaac Jardín
- Department of Physiology, University of Extremadura, 10071 Cáceres, Spain
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41
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Schmatz R, Schetinger MRC, Spanevello RM, Mazzanti CM, Stefanello N, Maldonado PA, Gutierres J, Corrêa MDC, Girotto E, Moretto MB, Morsch VM. Effects of resveratrol on nucleotide degrading enzymes in streptozotocin-induced diabetic rats. Life Sci 2009; 84:345-50. [DOI: 10.1016/j.lfs.2008.12.019] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2008] [Revised: 11/12/2008] [Accepted: 12/29/2008] [Indexed: 01/25/2023]
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Zbidi H, Salido S, Altarejos J, Perez-Bonilla M, Bartegi A, Rosado JA, Salido GM. Olive tree wood phenolic compounds with human platelet antiaggregant properties. Blood Cells Mol Dis 2009; 42:279-85. [PMID: 19195914 DOI: 10.1016/j.bcmd.2009.01.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2008] [Accepted: 01/07/2009] [Indexed: 12/23/2022]
Abstract
Oleuropein and (+)-cycloolivil are natural polyphenolic compounds with a significant radical scavenging activity present in olive tree. We have investigated the antiaggregant effects of oleuropein and (+)-cycloolivil isolated from an ethyl acetate extract of olive tree wood. Oleuropein and (+)-cycloolivil reduced the ability of thrombin to stimulate platelet aggregation. Both compounds reduced thrombin-evoked Ca(2+) release and entry to a similar extent to hydroxytyrosol. This effect was greater in platelets from patients with type 2 diabetes mellitus than in controls. Thrombin-, thapsigargin- and 2,5-di-(tert-butyl)-1,4-hydroquinone (TBHQ)-evoked protein tyrosine phosphorylation, which is involved in Ca(2+) signalling and platelet aggregation, is inhibited by oleuropein and (+)-cycloolivil. oleuropein and (+)-cycloolivil are natural oxygen radical scavengers that reduce thrombin-induced protein tyrosine phosphorylation, Ca(2+) signalling and platelet aggregation. These observations suggest that oleuropein and (+)-cycloolivil may prevent thrombotic complications associated to platelet hyperaggregability and be the base for the development of antiaggregant therapeutic strategies.
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Affiliation(s)
- Hanene Zbidi
- Unité de Recherche de Biochimie, Institut Supérieur de Biotechnologie, 5019-Monastir, Tunisia
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Gibbins JM. Tweaking the gain on platelet regulation: the tachykinin connection. Atherosclerosis 2008; 206:1-7. [PMID: 19150714 DOI: 10.1016/j.atherosclerosis.2008.12.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2008] [Revised: 11/30/2008] [Accepted: 12/08/2008] [Indexed: 01/18/2023]
Abstract
Soluble factors such as ADP and thromboxane (TX) A(2) that are secreted or released by platelets at sites of tissue injury, mediate autocrine and paracrine regulation of platelet function, resulting in rapid localised thrombus formation. The suppression of platelet function, particularly through targeting such secondary regulatory mechanisms, that serve to 'fine-tune' the platelet response, has proven effective in the prevention of inappropriate platelet activation that results in thrombosis. The most commonly used anti-platelet approaches (ADP receptor antagonism or inhibition of TXA(2) synthesis), however, lack efficacy in many patients, suggesting the existence of additional uncharacterised mechanisms for the regulation of platelet function. Recent data, which form a focus of this review, have identified peripheral tachykinin peptide family members, such as substance P and the newly identified endokinins, as physiologically important positive feedback regulators of platelet function. The actions of tachykinins that are released from platelets during activation are mediated by the neurokinin-1 receptor. Initial analysis of the role of this receptor in platelet thrombus formation, and thrombosis in the mouse, indicate this to be a promising new target for the development of anti-thrombotic drugs.
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Affiliation(s)
- Jonathan M Gibbins
- Institute for Cardiovascular & Metabolic Research, School of Biological Sciences, University of Reading, Hopkins Building, Whiteknights, Reading, Berkshire, UK.
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Lunkes GI, Lunkes DS, Leal D, Araújo MDC, Corrêa M, Becker L, Rosa CSD, Morsch VM, Schetinger MRC. Effect of high glucose levels in human platelet NTPDase and 5'-nucleotidase activities. Diabetes Res Clin Pract 2008; 81:351-7. [PMID: 18644642 DOI: 10.1016/j.diabres.2008.06.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2007] [Revised: 05/29/2008] [Accepted: 06/05/2008] [Indexed: 10/21/2022]
Abstract
OBJECTIVES The objective of this work was to evaluate the effect of different glucose levels on the ATP, ADP and AMP hydrolysis in the platelets of diabetic, hypertensive and diabetic/hypertensive participants. METHODS The activities of the enzymes NTPDase (ATP and ADP hydrolysis) and 5'-nucleotidase (AMP hydrolysis), and CD39 expression were analyzed in human blood platelets of diabetic (DM-2), hypertensive (HT) and diabetic/hypertensive (DM-2/HT) patients. To evaluate the interference of glucose and fructose in NTPDase and 5'-nucleotidase activities, experiments were performed with glucose, fructose and mannitol concentrations ranging from 5 to 30 mM in platelet-rich plasma (PRP). Pre-incubation times of 10, 120 min and 24h were used. RESULTS NTPDase and 5'-nucleotidase activities increased with increasing glucose and fructose concentrations (P<0.001) and the different times of pre-incubation did not interfere in ectonucleotidases activities (P>0.5). NTPDase and 5'-nucleotidase activities demonstrated a positive correlation between serum glucose levels and ATP and ADP hydrolysis in DM-2 and DM-2/HT patients. CD39 expression demonstrated that DM-2, HT and DM-2/HT groups presented a significant increase when compared to the control group (P<0.004). CONCLUSION The hydrolysis of adenine nucleotides is enhanced in platelets of patients with diabetes and hypertension. We observed that an increasing glucose concentration had a direct effect on ATP, ADP and AMP hydrolysis. Furthermore, CD39 expression was enhanced in all patients groups, indicating that these enzyme activities are related with diabetes and hypertension.
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Affiliation(s)
- Gilberto Inácio Lunkes
- Departamento de Química, Centro de Ciências Naturais e Exatas, Programa de Pós-Graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, RS 97105-900, Brazil
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El Haouari M, Rosado JA. Platelet signalling abnormalities in patients with type 2 diabetes mellitus: a review. Blood Cells Mol Dis 2008; 41:119-23. [PMID: 18387322 DOI: 10.1016/j.bcmd.2008.02.010] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2008] [Accepted: 02/27/2008] [Indexed: 11/29/2022]
Abstract
The hyperactivation of platelets is involved in the cardiovascular complications associated with type 2 diabetes mellitus. Altered platelet behavior contributes to the angiopathies associated with diabetes. A number of mechanisms involved in platelet activation are altered in diabetes. Platelets from type 2 diabetic patients show an enhanced endogenous reactive oxygen species production and a reduced antioxidant capability, which increase the activity of several tyrosine kinases, such as the Bruton's tyrosine kinase, MAP kinases or proteins of the SRC family. Oxidative stress is also involved in the abnormal intracellular calcium homeostasis observed in platelets from type 2 diabetics, including an enhanced resting cytosolic calcium concentration and calcium release and entry in response to agonists. Moreover, diabetes alters the bioavailability of nitric oxide in platelets. Basal nitric oxide synthase activity is reduced in homogenates of platelets obtained from patients with type 2 diabetes mellitus. The study of these abnormalities might be helpful in the development of new pharmacological strategies to reduce platelet activation in type 2 diabetes mellitus.
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Affiliation(s)
- Mohammed El Haouari
- Laboratoire de Physiologie et d'Ethnopharmacologie, Département de Biologie, Université Mohamed 1er, Faculté des Sciences, Bd. Mohamed VI, BP 717, Oujda 60000, Morocco
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Leal CAM, Schetinger MRC, Leal DBR, Bauchspiess K, Schrekker CML, Maldonado PA, Morsch VM, da Silva JEP. NTPDase and 5'-nucleotidase activities in platelets of human pregnants with a normal or high risk for thrombosis. Mol Cell Biochem 2007; 304:325-30. [PMID: 17557193 DOI: 10.1007/s11010-007-9515-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2007] [Accepted: 05/16/2007] [Indexed: 10/23/2022]
Abstract
The nucleotide degrading enzymes, ectonucleotidases, present on the platelet surface of human pregnant with a normal (without complications) or high risk for thrombosis (hypertension and gestational diabetes) were studied. NTPDase (E.C. 3.6.1.5, CD39) and 5'-nucleotidase (E.C. 3.1.3.5, CD73) activities of four patient groups, non-pregnant (NP, n = 18), pregnant without complications (P, n = 25), pregnant with hypertension (HP, n = 15) and pregnant with gestational diabetes mellitus (GDP, n = 10), were analyzed. Increased NTPDase activities were observed in the groups P (37.0%, S.D. = 2.03 and 34.0%, S.D. = 3.19), HP (40.0%, S.D. = 3.32 and 56.0%, S.D. = 3.25) and GDP (23.0%, S.D. = 2.30 and 42.0%, S.D. = 2.26) in comparison to the control group NP (p < 0.01, S.D. = 1.92 and S.D. = 2.48) when ATP and ADP were used as substrate, respectively. AMP was used as substrate to determine the 5'-nucleotidase activities, which showed to be elevated in the groups P (45.0%, S.D. = 1.73), HP (54.0%, S.D. = 2.64) and GDP (68.0%, S.D. = 1.69) when compared to the control group NP (p < 0.01, S.D. = 1.26). However, no statistically significant differences were observed between the groups P, HP and GDP. As a consequence, the enhanced ATP, ADP and AMP hydrolysis was ascribed to the pregnancy itself, independent of a normal or high risk for thrombosis. The enhanced NTPDase and 5'-nucleotidase activities in platelets suggest that these enzymes are involved in the thromboregulation process in the pregnancy.
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Affiliation(s)
- Claudio A M Leal
- Departamento de Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Av. Roraima, Santa Maria, RS 97105-900, Brazil
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Paul W, Queen LR, Page CP, Ferro A. Increased platelet aggregation in vivo in the Zucker Diabetic Fatty rat: differences from the streptozotocin diabetic rat. Br J Pharmacol 2006; 150:105-11. [PMID: 17099716 PMCID: PMC2013856 DOI: 10.1038/sj.bjp.0706957] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND AND PURPOSE Diabetes mellitus, especially type 2, is associated with increased arterial thrombosis. Our aims were (i) to characterize and compare platelet aggregation in vivo and in vitro in a type 2 diabetes model; and (ii) to determine whether these results differ from those in a type 1 diabetes model. EXPERIMENTAL APPROACH Platelet aggregation to ADP in lean or obese Zucker Diabetic Fatty (ZDF) rats and in streptozotocin (STZ)-treated or control Wistar rats was measured in vitro, using Born aggregometry, and in vivo, by (111)Indium-labelled pulmonary platelet accumulation. KEY RESULTS In vivo, ADP responses were higher in obese (type 2 model) than lean ZDF rats. However, in vitro, ADP aggregation did not differ between platelet-rich plasma from ZDF lean or obese rats; nor was any difference seen in ADP responses when platelets from either lean or obese ZDF rats were suspended in plasma from obese or lean ZDF rats, respectively. In vivo, ADP responses were similar in STZ treated (type 1 model) and control rats whereas, in vitro, isolated platelets from STZ diabetic rats were more responsive to ADP aggregation than controls. Platelets from control or STZ-treated rats suspended in plasma from STZ-treated rats exhibited reduced ADP aggregation, compared to when suspended in plasma from control rats. CONCLUSIONS AND IMPLICATIONS The platelet aggregation results obtained in vitro do not reflect those in vivo, therefore in vitro aggregation data should be interpreted with caution. Moreover, both in vitro and in vivo, different diabetic models exhibit important differences in platelet responsiveness.
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Affiliation(s)
- W Paul
- Sackler Institute of Pulmonary Pharmacology, School of Biomedical and Health Sciences, King's College London, London, UK
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Bouaziz A, Salido S, Linares-Palomino PJ, Sanchez A, Altarejos J, Bartegi A, Salido GM, Rosado JA. Cinnamtannin B-1 from bay wood reduces abnormal intracellular Ca2+ homeostasis and platelet hyperaggregability in type 2 diabetes mellitus patients. Arch Biochem Biophys 2006; 457:235-42. [PMID: 17118329 DOI: 10.1016/j.abb.2006.10.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2006] [Revised: 10/18/2006] [Accepted: 10/18/2006] [Indexed: 12/28/2022]
Abstract
Type 2 diabetes mellitus induces a number of cardiovascular disorders, including platelet hyperactivity and hyperaggregability, which is associated to an increased oxidant production and abnormal cytosolic Ca2+ mobilization. In the present study, we have investigated the effect of cinnamtannin B-1 obtained from bay wood on oxidants production, Ca2+ mobilization and aggregation in platelets from type 2 diabetic donors. Pretreatment of platelets with cinnamtannin B-1 reversed the enhanced oxidants production and Ca2+ mobilization, including Ca2+ entry, evoked by thapsigargin plus ionomycin or thrombin, observed in platelets from diabetic subjects, so that in the presence of cinnamtannin B-1 Ca2+ entry was similar in platelets from healthy and diabetic subjects. In addition, cinnamtannin B-1 reduced thrombin-induced aggregation in platelets from type 2 diabetic subjects. We conclude that cinnamtannin B-1 exerts an effective antioxidant action in platelets from patients with type 2 diabetes mellitus and reverses the enhanced Ca2+ mobilization and hyperaggregability.
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Affiliation(s)
- A Bouaziz
- Unité de Recherche de Biochimie, Institut Supérieur de Biotechnologie, 5019 Monastir, Tunisia
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Simandle SA, Erdös B, Snipes JA, Miller AW, Busija DW. Insulin resistance does not impair contractile responses of cerebral arteries. Life Sci 2006; 77:2262-72. [PMID: 15958270 DOI: 10.1016/j.lfs.2005.01.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2004] [Accepted: 01/31/2005] [Indexed: 11/21/2022]
Abstract
Insulin resistance (IR) impairs endothelium-mediated vasodilation in cerebral arteries as well as K+ channel function in vascular smooth muscle. Peripheral arteries also show an impaired endothelium-dependent vasodilation in IR and concomitantly show an enhanced contractile response to endothelin-1 (ET-1). However, the contractile responses of the cerebral arteries in IR have not been examined systematically. This study examined the contractile responses of pressurized isolated middle cerebral arteries (MCAs) in fructose-fed IR and control rats. IR MCAs showed no difference in pressure-mediated (80 mmHg) vasoconstriction compared to controls, either in time to develop spontaneous tone (control: 61+/-3 min, n=30; IR: 63+/-2 min, n=26) or in the degree of that tone (control: 60 min: 33+/-2%, n=22 vs. IR 60 min: 34+/-3%, n=17). MCAs treated with ET-1 (10(-8.5) M) constrict similarly in control (53+/-3%, n=14) and IR (53+/-3%, n=14) arteries. Constrictor responses to U46619 (10(-6) M) are also similar in control (48+/-9%, n=8) and IR (42+/-5%, n=6) MCAs as are responses to extraluminal uridine 5'-triphosphate (UTP; 10(-4.5) M) (control: 35+/-7%, n=11 vs. IR: 38+/-3%, n=10). These findings demonstrate that constrictor responses remain intact in IR despite a selective impairment of dilator responses and endothelial and vascular smooth muscle K+ channel function in cerebral arteries. Thus, it appears that the increased susceptibility to cerebrovascular abnormalities associated with IR and diabetes (including cerebral ischemia, stroke, vertebrobasilar transient ischemic attacks) is not due to an enhanced vasoreactivity to constrictor agents.
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Affiliation(s)
- Steve A Simandle
- Department of Physiology and Pharmacology, Wake Forest University Health Sciences, Winston-Salem, North Carolina 27157, United States.
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50
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Affiliation(s)
- J A Colwell
- Medical University of South Carolina, Charleston, SC 29425, USA.
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