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Awamura T, Nakasone ES, Gangcuangco LM, Subia NT, Bali AJ, Chow DC, Shikuma CM, Park J. Platelet and HIV Interactions and Their Contribution to Non-AIDS Comorbidities. Biomolecules 2023; 13:1608. [PMID: 38002289 PMCID: PMC10669125 DOI: 10.3390/biom13111608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 10/29/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023] Open
Abstract
Platelets are anucleate cytoplasmic cell fragments that circulate in the blood, where they are involved in regulating hemostasis. Beyond their normal physiologic role, platelets have emerged as versatile effectors of immune response. During an infection, cell surface receptors enable platelets to recognize viruses, resulting in their activation. Activated platelets release biologically active molecules that further trigger host immune responses to protect the body against infection. Their impact on the immune response is also associated with the recruitment of circulating leukocytes to the site of infection. They can also aggregate with leukocytes, including lymphocytes, monocytes, and neutrophils, to immobilize pathogens and prevent viral dissemination. Despite their host protective role, platelets have also been shown to be associated with various pathophysiological processes. In this review, we will summarize platelet and HIV interactions during infection. We will also highlight and discuss platelet and platelet-derived mediators, how they interact with immune cells, and the multifaceted responsibilities of platelets in HIV infection. Furthermore, we will give an overview of non-AIDS comorbidities linked to platelet dysfunction and the impact of antiretroviral therapy on platelet function.
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Affiliation(s)
- Thomas Awamura
- Department of Tropical Medicine, Medical Microbiology, and Pharmacology, John A. Burns School Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA; (T.A.); (N.T.S.); (A.-J.B.)
| | - Elizabeth S. Nakasone
- University of Hawai‘i Cancer Center, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA;
- Department of Medicine, John A. Burns School of Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA;
| | - Louie Mar Gangcuangco
- Hawai‘i Center for AIDS, John A. Burns School of Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA; (L.M.G.); (C.M.S.)
| | - Natalie T. Subia
- Department of Tropical Medicine, Medical Microbiology, and Pharmacology, John A. Burns School Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA; (T.A.); (N.T.S.); (A.-J.B.)
| | - Aeron-Justin Bali
- Department of Tropical Medicine, Medical Microbiology, and Pharmacology, John A. Burns School Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA; (T.A.); (N.T.S.); (A.-J.B.)
| | - Dominic C. Chow
- Department of Medicine, John A. Burns School of Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA;
- Hawai‘i Center for AIDS, John A. Burns School of Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA; (L.M.G.); (C.M.S.)
| | - Cecilia M. Shikuma
- Hawai‘i Center for AIDS, John A. Burns School of Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA; (L.M.G.); (C.M.S.)
| | - Juwon Park
- Department of Tropical Medicine, Medical Microbiology, and Pharmacology, John A. Burns School Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA; (T.A.); (N.T.S.); (A.-J.B.)
- Hawai‘i Center for AIDS, John A. Burns School of Medicine, University of Hawai‘i at Mānoa, Honolulu, HI 96813, USA; (L.M.G.); (C.M.S.)
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Mobbs JI, Black KA, Tran M, Burger WAC, Venugopal H, Holman TR, Holinstat M, Thal DM, Glukhova A. Cryo-EM structures of human arachidonate 12S-lipoxygenase bound to endogenous and exogenous inhibitors. Blood 2023; 142:1233-1242. [PMID: 37506345 PMCID: PMC10579047 DOI: 10.1182/blood.2023020441] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/05/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Human 12-lipoxygenase (12-LOX) is a key enzyme involved in platelet activation, and the regulation of its activity has been targeted for the treatment of heparin-induced thrombocytopenia. Despite the clinical importance of 12-LOX, the exact mechanisms by which it affects platelet activation are not fully understood, and the lack of structural information has limited drug discovery efforts. In this study, we used single-particle cryo-electron microscopy to determine high-resolution structures (1.7-2.8 Å) of human 12-LOX. Our results showed that 12-LOX can exist in multiple oligomeric states, from monomer to hexamer, which may affect its catalytic activity and membrane association. We also identified different conformations within the 12-LOX dimer, which likely represent different time points in its catalytic cycle. Furthermore, we identified small molecules bound to 12-LOX. The active site of the 12-LOX tetramer was occupied by an endogenous 12-LOX inhibitor, a long-chain acyl coenzyme A. In addition, we found that the 12-LOX hexamer can simultaneously bind to arachidonic acid and ML355, a selective 12-LOX inhibitor that has passed a phase 1 clinical trial for the treatment of heparin-induced thrombocytopenia and received a fast-track designation by the Food and Drug Administration. Overall, our findings provide novel insights into the assembly of 12-LOX oligomers, their catalytic mechanism, and small molecule binding, paving the way for further drug development targeting the 12-LOX enzyme.
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Affiliation(s)
- Jesse I. Mobbs
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
- ARC Centre for Cryo-Electron Microscopy of Membrane Proteins, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Katrina A. Black
- Structural Biology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
- Department of Biochemistry and Pharmacology, University of Melbourne, Melbourne, VIC, Australia
| | - Michelle Tran
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, CA
| | - Wessel A. C. Burger
- ARC Centre for Cryo-Electron Microscopy of Membrane Proteins, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
- Structural Biology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
- Department of Biochemistry and Pharmacology, University of Melbourne, Melbourne, VIC, Australia
| | - Hariprasad Venugopal
- Ramaciotti Centre for Cryo-Electron Microscopy, Monash University, Clayton, VIC, Australia
| | - Theodore R. Holman
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, CA
| | - Michael Holinstat
- Department of Pharmacology, University of Michigan, Ann Arbor, MI
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - David M. Thal
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
- ARC Centre for Cryo-Electron Microscopy of Membrane Proteins, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Alisa Glukhova
- Drug Discovery Biology, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
- ARC Centre for Cryo-Electron Microscopy of Membrane Proteins, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
- Structural Biology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
- Department of Biochemistry and Pharmacology, University of Melbourne, Melbourne, VIC, Australia
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Andrabi SM, Sharma NS, Karan A, Shahriar SMS, Cordon B, Ma B, Xie J. Nitric Oxide: Physiological Functions, Delivery, and Biomedical Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303259. [PMID: 37632708 PMCID: PMC10602574 DOI: 10.1002/advs.202303259] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Indexed: 08/28/2023]
Abstract
Nitric oxide (NO) is a gaseous molecule that has a central role in signaling pathways involved in numerous physiological processes (e.g., vasodilation, neurotransmission, inflammation, apoptosis, and tumor growth). Due to its gaseous form, NO has a short half-life, and its physiology role is concentration dependent, often restricting its function to a target site. Providing NO from an external source is beneficial in promoting cellular functions and treatment of different pathological conditions. Hence, the multifaceted role of NO in physiology and pathology has garnered massive interest in developing strategies to deliver exogenous NO for the treatment of various regenerative and biomedical complexities. NO-releasing platforms or donors capable of delivering NO in a controlled and sustained manner to target tissues or organs have advanced in the past few decades. This review article discusses in detail the generation of NO via the enzymatic functions of NO synthase as well as from NO donors and the multiple biological and pathological processes that NO modulates. The methods for incorporating of NO donors into diverse biomaterials including physical, chemical, or supramolecular techniques are summarized. Then, these NO-releasing platforms are highlighted in terms of advancing treatment strategies for various medical problems.
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Affiliation(s)
- Syed Muntazir Andrabi
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - Navatha Shree Sharma
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - Anik Karan
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - S. M. Shatil Shahriar
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - Brent Cordon
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
| | - Bing Ma
- Cell Therapy Manufacturing FacilityMedStar Georgetown University HospitalWashington, DC2007USA
| | - Jingwei Xie
- Department of Surgery‐Transplant and Mary & Dick Holland Regenerative Medicine ProgramCollege of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA
- Department of Mechanical and Materials EngineeringCollege of EngineeringUniversity of Nebraska LincolnLincolnNE68588USA
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Hong HJ, Nam GS, Nam KS. Daidzein Inhibits Human Platelet Activation by Downregulating Thromboxane A 2 Production and Granule Release, Regardless of COX-1 Activity. Int J Mol Sci 2023; 24:11985. [PMID: 37569361 PMCID: PMC10418957 DOI: 10.3390/ijms241511985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/17/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023] Open
Abstract
Platelets play crucial roles in cardiovascular diseases (CVDs) by regulating hemostasis and blood coagulation at sites of blood vessel damage. Accumulating evidence indicates daidzein inhibits platelet activation, but the mechanism involved has not been elucidated. Thus, in this study, we investigated the mechanism responsible for the inhibition of collagen-induced platelet aggregation by daidzein. We found that in collagen-induced platelets, daidzein suppressed the production of thromboxane A2 (TXA2), a molecule involved in platelet activation and aggregation, by inhibiting the cytosolic phospholipase A2 (cPLA2) signaling pathway. However, daidzein did not affect cyclooxygenase-1 (COX-1). Furthermore, daidzein attenuated the PI3K/PDK1/Akt/GSK3αβ and MAPK (p38, ERK) signaling pathways, increased the phosphorylation of inositol trisphosphate receptor1 (IP3R1) and vasodilator-stimulated phosphoprotein (VASP), and increased the level of cyclic adenosine monophosphate (cAMP). These results suggest that daidzein inhibits granule release (ATP, serotonin, P-selectin), integrin αIIbβ3 activation, and clot retraction. Taken together, our study demonstrates that daidzein inhibits collagen-induced platelet aggregation and suggests that daidzein has therapeutic potential for the treatment of platelet aggregation-related diseases such as atherosclerosis and thrombosis.
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Affiliation(s)
- Hyun-Jin Hong
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju 38066, Republic of Korea;
| | - Gi-Suk Nam
- Department of Biomedical Laboratory Science, Honam University, 120, Honamdae-gil, Gwangsan-gu, Gwangju 62399, Republic of Korea
| | - Kyung-Soo Nam
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju 38066, Republic of Korea;
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Eligini S, Munno M, Atlas D, Banfi C. N-acetylcysteine Amide AD4/NACA and Thioredoxin Mimetic Peptides Inhibit Platelet Aggregation and Protect against Oxidative Stress. Antioxidants (Basel) 2023; 12:1395. [PMID: 37507934 PMCID: PMC10376080 DOI: 10.3390/antiox12071395] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 06/28/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
In the present study, we tested the effect of small-molecular-weight redox molecules on collagen-induced platelet aggregation. We used N-acetylcysteine amide (AD4/NACA), the amide form of N-acetylcysteine (NAC), a thiol antioxidant with improved lipophilicity and bioavailability compared to NAC, and the thioredoxin-mimetic (TXM) peptides, TXM-CB3, TXM-CB13, and TXM-CB30. All compounds significantly inhibited platelet aggregation induced by collagen, with TXM-peptides and AD4 being more effective than NAC. The levels of TxB2 and 12-HETE, the main metabolites derived from the cyclooxygenase and lipoxygenase pathways following platelet activation, were significantly reduced in the presence of AD4, TXM peptides, or NAC, when tested at the highest concentration (0.6 mM). The effects of AD4, TXM-peptides, and NAC were also tested on the clotting time (CT) of whole blood. TXM-CB3 and TXM-CB30 showed the greatest increase in CT. Furthermore, two representative compounds, TXM-CB3 and NAC, showed an increase in the anti-oxidant free sulfhydryl groups of plasma detected via Ellman's method, suggesting a contribution of plasma factors to the antiaggregating effects. Our results suggest that these small-molecular-weight redox peptides might become useful for the prevention and/or treatment of oxidative stress conditions associated with platelet activation.
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Affiliation(s)
- Sonia Eligini
- Centro Cardiologico Monzino IRCCS, Unit of Functional Proteomics, Metabolomics, and Network Analysis, 20138 Milan, Italy
| | - Marco Munno
- Centro Cardiologico Monzino IRCCS, Unit of Functional Proteomics, Metabolomics, and Network Analysis, 20138 Milan, Italy
| | - Daphne Atlas
- Department of Biological Chemistry, Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Cristina Banfi
- Centro Cardiologico Monzino IRCCS, Unit of Functional Proteomics, Metabolomics, and Network Analysis, 20138 Milan, Italy
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Silva TMVD, Stein AM, Coelho FGDM, Rueda AV, Camarini R, Galduróz RF. Circulating levels of vascular endothelial growth factor in patients with Alzheimer's disease: A case-control study. Behav Brain Res 2023; 437:114126. [PMID: 36167216 DOI: 10.1016/j.bbr.2022.114126] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 09/21/2022] [Accepted: 09/23/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Vascular endothelial growth factor (VEGF) and platelets seem to reflect the Alzheimer's disease (AD) associated either with vascular impairment or disease. This study aimed to compare the circulating levels of VEGF and platelets between AD patients and healthy older adults. METHODS Seventy-two older adults, divided in 40 older adults (Clinical Dementia Rating Scale - CDR = 0); and 32 Alzheimer's disease patients (clinically diagnosed - CRD = 1) participated in the present study. The groups were paired by sex, age, comorbidities and educational level. The primary outcomes included circulating plasma VEGF and platelet levels obtained by blood collection. RESULTS The VEGF levels were significantly different between the groups (p = 0.03), with having a large effect size ( η2 =18.15), in which the AD patients presented lower levels compared to healthy older adults. For platelets, the comparison showed a tendency to difference (p = 0.06), with a large effect size (η2 =12.95) between the groups. CONCLUSION The VEGF levels and the platelet numbers were reduced in AD patients, suggesting that angiogenic factors could be modified due to AD.
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Affiliation(s)
- Thays Martins Vital da Silva
- Instituto Federal do Triangulo Mineiro, Campus Patos de Minas, Brazil; Institute of Biosciences, UNESP (Universidade Estadual Paulista) Physical Activity and Aging Lab (LAFE), Campus Rio Claro, Brazil
| | - Angelica Miki Stein
- Institute of Biosciences, UNESP (Universidade Estadual Paulista) Physical Activity and Aging Lab (LAFE), Campus Rio Claro, Brazil; UTFPR, Federal University of Technology - Paraná (UTFPR), Campus Curitiba, Brazil; Department of Physical Education, Midwestern Parana State University (UNICENTRO), Guarapuava, Brazil.
| | - Flávia Gomes de Melo Coelho
- Institute of Biosciences, UNESP (Universidade Estadual Paulista) Physical Activity and Aging Lab (LAFE), Campus Rio Claro, Brazil
| | - Andre Veloso Rueda
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, Campus São Paulo, Brazil
| | - Rosana Camarini
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, Campus São Paulo, Brazil
| | - Ruth Ferreira Galduróz
- Institute of Biosciences, UNESP (Universidade Estadual Paulista) Physical Activity and Aging Lab (LAFE), Campus Rio Claro, Brazil; Center of Mathematics, Computing and Cognition, University Federal of ABC (UFABC), Campus São Bernardo, Brazil
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Dziemitko S, Harasim-Symbor E, Chabowski A. How do phytocannabinoids affect cardiovascular health? An update on the most common cardiovascular diseases. Ther Adv Chronic Dis 2023; 14:20406223221143239. [PMID: 36636553 PMCID: PMC9830002 DOI: 10.1177/20406223221143239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 11/17/2022] [Indexed: 01/09/2023] Open
Abstract
Cardiovascular disease (CVD) causes millions of deaths worldwide each year. Despite the great progress in therapies available for patients with CVD, some limitations, including drug complications, still exist. Hence, the endocannabinoid system (ECS) was proposed as a new avenue for CVDs treatment. The ECS components are widely distributed through the body, including the heart and blood vessels, thus the action of its endogenous and exogenous ligands, in particular, phytocannabinoids play a key role in various pathological states. The cardiovascular action of cannabinoids is complex as they affect vasculature and myocardium directly via specific receptors and exert indirect effects through the central and peripheral nervous system. The growing interest in phytocannabinoid studies, however, has extended the knowledge about their molecular targets as well as therapeutical properties; nonetheless, some areas of their actions are not yet fully recognized. Researchers have reported various cannabinoids, especially cannabidiol, as a promising approach to CVDs; hence, the purpose of this review is to summarize and update the cardiovascular actions of the most potent phytocannabinoids and the potential therapeutic role of ECS in CVDs, including ischemic reperfusion injury, arrhythmia, heart failure as well as hypertension.
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Affiliation(s)
| | - Ewa Harasim-Symbor
- Department of Physiology, Medical University of
Bialystok, Bialystok, Poland
| | - Adrian Chabowski
- Department of Physiology, Medical University of
Bialystok, Bialystok, Poland
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Liu G, Zhang Y, Zhang W, Wu X, Huang H, Jiang H, Zhang X. Significance of detailed hematological parameters as markers of arteriogenic erectile dysfunction. Andrology 2022; 10:1556-1566. [DOI: 10.1111/andr.13283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/25/2022] [Accepted: 08/23/2022] [Indexed: 01/10/2023]
Affiliation(s)
- Guodong Liu
- Department of Urology the First Affiliated Hospital of Anhui Medical University Anhui province China
- Institute of Urology the First Affiliated Hospital of Anhui Medical University Anhui province China
- Anhui Province Key Laboratory of Genitourinary Diseases Anhui Medical University Anhui province China
| | - Yuyang Zhang
- Department of Urology the First Affiliated Hospital of Anhui Medical University Anhui province China
- Institute of Urology the First Affiliated Hospital of Anhui Medical University Anhui province China
- Anhui Province Key Laboratory of Genitourinary Diseases Anhui Medical University Anhui province China
| | - Wei Zhang
- Department of Urology the First Affiliated Hospital of Anhui Medical University Anhui province China
- Institute of Urology the First Affiliated Hospital of Anhui Medical University Anhui province China
- Anhui Province Key Laboratory of Genitourinary Diseases Anhui Medical University Anhui province China
| | - Xu Wu
- Department of Urology the First Affiliated Hospital of Anhui Medical University Anhui province China
- Institute of Urology the First Affiliated Hospital of Anhui Medical University Anhui province China
- Anhui Province Key Laboratory of Genitourinary Diseases Anhui Medical University Anhui province China
| | - Houbao Huang
- Department of Urology The First Affiliated Hospital of Wannan Medical College Anhui province China
| | - Hui Jiang
- The department of Urology Peking University Third Hospital Beijing China
| | - Xiansheng Zhang
- Department of Urology the First Affiliated Hospital of Anhui Medical University Anhui province China
- Institute of Urology the First Affiliated Hospital of Anhui Medical University Anhui province China
- Anhui Province Key Laboratory of Genitourinary Diseases Anhui Medical University Anhui province China
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Aynalem M, Adane T, Getawa S. Magnitude of Coagulation Abnormalities and Associated Factors Among Patients with Heart Diseases at the University of Gondar Comprehensive Specialized Hospital. Vasc Health Risk Manag 2022; 18:617-627. [PMID: 35959111 PMCID: PMC9362846 DOI: 10.2147/vhrm.s371912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/01/2022] [Indexed: 11/23/2022] Open
Abstract
Background Heart disease is a leading cause of hospitalization, death, and poor physical function due to comorbid conditions such as atrial fibrillation and stroke. It affects the blood hemostatic system, vasculature, and flow dynamics, causing both arterial and venous thrombosis. Thus, this study aimed to determine the magnitude of coagulation abnormalities among patients with heart disease attending the University of Gondar Comprehensive Specialized hospital. Methods A cross-sectional study was conducted on a total of 98 patients with heart disease. Pretested structured questionnaires were used to collect data on socio-demographic and clinical variables. About 6 mL of venous blood was collected with the vacutainer method and analyzed using Huma cue-due plus and Sysmex KX-21N hematology analyzers for assessing coagulation abnormalities. Stool samples were processed via a direct wet mount. Thin and thick blood films were examined to assess malaria parasites. Data was entered into EPI-Info version 3.5.3 and then transported to SPSS version 20 for analysis. Descriptive statistics were summarized using frequency and percentage. Univariate and multivariate logistic regression models were fitted to identify factors associated with coagulopathy. P-value <0.05 was considered to be statistically significant. Results The overall magnitude of coagulation abnormalities (thrombocytopenia, prolonged prothrombin time, and activated partial thromboplastin time) in patients with heart diseases was 85.7% (95% CI: 81.96, 89.45). Besides, prolonged prothrombin time, prolonged activated partial thromboplastin time, and thrombocytopenia were detected in 83.7%, 33.7%, and 12.2% of the study participants, respectively. Participants who are taking medications for chronic disease (AOR = 0.17; 95% CI: 0.04, 0.69), participants with stroke (AOR = 20; 95% CI: 14.7, 35), and participants taking antibiotics (AOR = 8.17; 95% CI: 1.66, 40.27) were significantly associated with prolonged coagulation time. Conclusion This study showed that patients with heart disease had prolonged prothrombin time, activated partial thromboplastin time, and thrombocytopenia. Therefore, coagulation parameters are required to be checked regularly to monitor coagulation disorders and their complications in heart disease patients.
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Affiliation(s)
- Melak Aynalem
- Department of Hematology and Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Tiruneh Adane
- Department of Hematology and Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Solomon Getawa
- Department of Hematology and Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
- Correspondence: Solomon Getawa, Department of Hematology and Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, P.O. Box: 196, Gondar, Ethiopia, Tel +251-914-665-736, Email
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Klidsar MH, Esfahanizadeh M, Haghverdi P, Amidi S, Kobarfard F. Synthesis, and docking studies of arylhydrazone compounds and evaluation of their platelet aggregation inhibitory effect and cytotoxicity. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02931-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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The association between platelet indices and presence and severity of psoriasis: a systematic review and meta-analysis. Clin Exp Med 2022; 23:333-346. [PMID: 35377095 DOI: 10.1007/s10238-022-00820-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/15/2022] [Indexed: 11/03/2022]
Abstract
The role of platelet function indices-platelet count (PLT), mean platelet volume (MPV), platelet distribution width (PDW), plateletcrit (PCT), immature platelet fraction (IPF), and platelet mass index (PMI)-in psoriasis is uncertain. This systematic review and meta-analysis aimed to evaluate the association of these platelet biomarkers with both presence and severity of psoriasis. We searched MEDLINE (Ovid), Embase (Ovid), and the Cochrane Library from inception to November 2021. To evaluate the association of platelet function indices and psoriasis, we recorded mean differences (MD) and 95% confidence intervals (CI) as well as correlation coefficients (r) for each included study, and generated summary estimates using random-effects inverse-variance modelling. We screened 1,079 unique studies, and included 33 studies with 6724 patients in the quantitative analyses. Compared with controls, patients with psoriasis had higher PLT (MD 12.86 × 109/L, 95% CI 6.34-19.39, p < 0.001), MPV (MD 0.61fL, 95% CI 0.31-0.92, p < 0.001), and PCT (MD 0.05%, 95% CI 0.01-0.09, p = 0.010), but similar PDW (MD 0.16%, 95% CI -0.46-0.79, p = 0.610). Psoriasis Area and Severity Index (PASI) was weakly correlated with PLT (r 0.17, 95% CI 0.06-0.28, p = 0.003), MPV (r 0.36, 95% CI 0.22-0.49, p < 0.001), and PDW (r 0.17, 95% CI 0.08-0.26, p < 0.001). Study numbers were insufficient to judge the relationship of IPF and PMI with psoriasis presence, or PCT, IPF, and PMI with psoriasis severity. In summary, PLT, MPV, and PCT are significantly elevated in patients with psoriasis, and PLT, MPV, and PDW are weakly correlated with PASI. Future studies are needed to evaluate the independent diagnostic and prognostic potentials of these biomarkers in patients with psoriasis.
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Nazeri M, Chamanara M, Yousefi Zoshk M, Aghsami M, Noroozi Aghide A, Khajeh-Amiri A, Nassireslami E. Design, Docking Study, Synthesis, and Platelet Aggregometry Assay of Novel N'-Benzylidene-7-(4-Methoxyphenyl)-2,4-Dioxo-1,2,3,4-Tetrahydropyrido[2,3-d]Pyrimidine-5-Carbohydrazide Derivatives as Antiplatelet Agents. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2041679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mohamad Nazeri
- Department of Pharmacology and Toxicology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Mohsen Chamanara
- Department of Pharmacology and Toxicology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran
| | - Mojtaba Yousefi Zoshk
- AJA University of Medical Sciences, Tehran, Iran
- Trauma Research Center, AJA University of Medical Sciences, Tehran, Iran
| | - Mehdi Aghsami
- Department of Pharmacology and Toxicology, School of Pharmacy, Iran University of Medical Sciences, Tehran, Iran
| | | | | | - Ehsan Nassireslami
- Department of Pharmacology and Toxicology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
- Toxicology Research Center, AJA University of Medical Sciences, Tehran, Iran
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Pathogenesis of Two Faces of DVT: New Identity of Venous Thromboembolism as Combined Micro-Macrothrombosis via Unifying Mechanism Based on “Two-Path Unifying Theory” of Hemostasis and “Two-Activation Theory of the Endothelium”. Life (Basel) 2022; 12:life12020220. [PMID: 35207507 PMCID: PMC8874373 DOI: 10.3390/life12020220] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/17/2022] [Accepted: 01/21/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary DVT is an intravascular blood clotting disorder that can be a life-threatening disease, particularly if it occurs in critically ill patients. Typically, distal DVT develops following a vascular injury associated with incidental trauma commonly involving lower extremities, which is transient and benign condition localized in the lower legs as solitary lesion. However, proximal/central DVT (i.e., venous thromboembolism) typically occurs in association with critical illnesses such as sepsis, diabetes, hypertension, cancer, autoimmune disease and others in the hospitalized patient, especially in the ICU. Recognition of different pathogenesis between distal DVT and proximal/central DVT is critically important because the prognosis is poorer in VTE. Its therapeutic approach should be different from distal DVT. The aim of this review is to identify the pathogenesis of two different types of DVT based on in vivo hemostatic mechanisms, which can explain their distinct phenotypes by clinical characteristics, laboratory data and imaging findings. An appropriate preventive measure can be put into the practice to avoid the onset of VTE. Additionally, should VTE be developed, proper and rational therapeutic regimen based on its pathogenesis can be designed for clinical trials to improve the outcome. Abstract Venous thrombosis includes deep venous thrombosis (DVT), venous thromboembolism (VTE), venous microthrombosis and others. Still, the pathogenesis of each venous thrombosis is not clearly established. Currently, isolated distal DVT and multiple proximal/central DVT are considered to be the same macrothrombotic disease affecting the venous system but with varying degree of clinical expression related to its localization and severity. The genesis of two phenotypes of DVT differing in clinical features and prognostic outcome can be identified by their unique hemostatic mechanisms. Two recently proposed hemostatic theories in vivo have clearly defined the character between “microthrombi” and “macrothrombus” in the vascular system. Phenotypic expression of thrombosis depends upon two major variables: (1) depth of vascular wall damage and (2) extent of the injury affecting the vascular tree system. Vascular wall injury limited to endothelial cells (ECs) in sepsis produces “disseminated” microthrombi, but intravascular injury due to trauma extending from ECs to subendothelial tissue (SET) produces “local” macrothrombus. Pathogen-induced sepsis activates the complement system leading to generalized endotheliopathy, which releases ultra large von Willebrand factor (ULVWF) multimers from ECs and promotes ULVWF path of hemostasis. In the venous system, the activated ULVWF path initiates microthrombogenesis to form platelet-ULVWF complexes, which become “microthrombi strings” that produce venous endotheliopathy-associated vascular microthrombotic disease (vEA-VMTD) and immune thrombocytopenic purpura (ITP)-like syndrome. In the arterial system, endotheliopathy produces arterial EA-VMTD (aEA-VMTD) with “life-threatening” thrombotic thrombocytopenic purpura (TTP)-like syndrome. Typically, vEA-VMTD is “silent” unless complicated by additional local venous vascular injury. A local venous vessel trauma without sepsis produces localized macrothrombosis due to activated ULVWF and tissue factor (TF) paths from damaged ECs and SET, which causes distal DVT with good prognosis. However, if a septic patient with “silent” vEA-VMTD is complicated by additional vascular injury from in-hospital vascular accesses, “venous combined micro-macrothrombosis” may develop as VTE via the unifying mechanism of the “two-path unifying theory” of hemostasis. This paradigm shifting pathogenetic difference between distal DVT and proximal/central DVT calls for a reassessment of current therapeutic approaches.
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Carbone MG, Pagni G, Tagliarini C, Imbimbo BP, Pomara N. Can platelet activation result in increased plasma Aβ levels and contribute to the pathogenesis of Alzheimer's disease? Ageing Res Rev 2021; 71:101420. [PMID: 34371202 DOI: 10.1016/j.arr.2021.101420] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/18/2021] [Accepted: 08/02/2021] [Indexed: 12/12/2022]
Abstract
One of the central lesions in the brain of subjects with Alzheimer's disease (AD) is represented by aggregates of β-amyloid (Aβ), a peptide of 40-42 amino acids derived from the amyloid precursor protein (APP). The reasons why Aβ accumulates in the brain of individuals with sporadic forms of AD are unknown. Platelets are the primary source of circulating APP and, upon activation, can secrete significant amounts of Aβ into the blood which can be actively transported to the brain across the blood-brain barrier and promote amyloid deposition. Increased platelet activity can stimulate platelet adhesion to endothelial cells, trigger the recruitment of leukocytes into the vascular wall and cause perivascular inflammation, which can spread inflammation in the brain. Neuroinflammation is fueled by activated microglial cells and reactive astrocytes that release neurotoxic cytokines and chemokines. Platelet activation is also associated with the progression of carotid artery disease resulting in an increased risk of cerebral hypoperfusion which may also contribute to the AD neurodegenerative process. Platelet activation may thus be a pathophysiological mechanism of AD and for the strong link between AD and cerebrovascular diseases. Interfering with platelet activation may represent a promising potential adjunct therapeutic approach for AD.
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Affiliation(s)
- Manuel Glauco Carbone
- Department of Medicine and Surgery, Division of Psychiatry, University of Insubria, Viale Luigi Borri 57, 21100, Varese, Italy; Pisa-School of Experimental and Clinical Psychiatry, University of Pisa, Via Roma 57, 56100, Pisa, Italy.
| | - Giovanni Pagni
- Pisa-School of Experimental and Clinical Psychiatry, University of Pisa, Via Roma 57, 56100, Pisa, Italy.
| | - Claudia Tagliarini
- Pisa-School of Experimental and Clinical Psychiatry, University of Pisa, Via Roma 57, 56100, Pisa, Italy.
| | | | - Nunzio Pomara
- Geriatric Psychiatry Department, Nathan Kline Institute, and Departments of Psychiatry and Pathology, NYU Grossman School of Medicine, 140 Old Orangeburg Road Orangeburg, New York, 10962, United States.
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15
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Mao S, Sarkar A, Wang Y, Song C, LeVine D, Wang X, Que L. Microfluidic chip grafted with integrin tension sensors for evaluating the effects of flowing shear stress and ROCK inhibitor on platelets. LAB ON A CHIP 2021; 21:3128-3136. [PMID: 34180491 PMCID: PMC8353964 DOI: 10.1039/d1lc00259g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
Integrins are key players in platelet adhesion and aggregation. Integrin molecular tensions, the forces transmitted by integrin molecules, are regulated by both mechanical and biochemical cues, and the outside-in and inside-out signaling has been extensively studied. While the mechanical properties of platelets at static status have been studied by atomic force microscopy, traction force microscopy and tension sensors, the biomechanical properties of flowing platelets remain elusive. Herein, we report microfluidic chips grafted with integrin tension sensors for microfluidic-force mapping in platelets. Specifically, the process of integrin αIIbβ3 mediating tension transmission and platelet adhesion under low flow rates has been obtained, and the process of platelet clustering at post-stenotic regions has been demonstrated. We found that flowing shear force can postpone the integrin-mediated tension transmission and platelet adhesion. We further evaluated the effect of Y-27632, a ROCK inhibitor that has been proven to reduce integrin-mediated platelet adhesion, at a series of concentrations and demonstrated that microfluidic chips with integrin tension sensors are sensitive to the concentration-dependent effects of Y-27632. Given their low cost and scalable throughput, these chips are ideal technical platforms for biological studies of platelets at flowing status and for platelet inhibitor or potential antiplatelet drug screening.
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Affiliation(s)
- Subin Mao
- Electrical and Computer Engineering Department, Iowa State University, Ames, USA50011.
| | - Anwesha Sarkar
- Electrical and Computer Engineering Department, Iowa State University, Ames, USA50011. and Department of Physics and Astronomy, Iowa State University, Ames, USA50011.
| | - Yongliang Wang
- Department of Physics and Astronomy, Iowa State University, Ames, USA50011.
| | - Chao Song
- Electrical and Computer Engineering Department, Iowa State University, Ames, USA50011.
| | - Dana LeVine
- Veterinary Clinical Sciences, Iowa State University, Ames, USA50011
| | - Xuefeng Wang
- Department of Physics and Astronomy, Iowa State University, Ames, USA50011.
| | - Long Que
- Electrical and Computer Engineering Department, Iowa State University, Ames, USA50011.
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Chumachenko MS, Waseem TV, Fedorovich SV. Metabolomics and metabolites in ischemic stroke. Rev Neurosci 2021; 33:181-205. [PMID: 34213842 DOI: 10.1515/revneuro-2021-0048] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/09/2021] [Indexed: 12/27/2022]
Abstract
Stroke is a major reason for disability and the second highest cause of death in the world. When a patient is admitted to a hospital, it is necessary to identify the type of stroke, and the likelihood for development of a recurrent stroke, vascular dementia, and depression. These factors could be determined using different biomarkers. Metabolomics is a very promising strategy for identification of biomarkers. The advantage of metabolomics, in contrast to other analytical techniques, resides in providing low molecular weight metabolite profiles, rather than individual molecule profiles. Technically, this approach is based on mass spectrometry and nuclear magnetic resonance. Furthermore, variations in metabolite concentrations during brain ischemia could alter the principal neuronal functions. Different markers associated with ischemic stroke in the brain have been identified including those contributing to risk, acute onset, and severity of this pathology. In the brain, experimental studies using the ischemia/reperfusion model (IRI) have shown an impaired energy and amino acid metabolism and confirmed their principal roles. Literature data provide a good basis for identifying markers of ischemic stroke and hemorrhagic stroke and understanding metabolic mechanisms of these diseases. This opens an avenue for the successful use of identified markers along with metabolomics technologies to develop fast and reliable diagnostic tools for ischemic and hemorrhagic stroke.
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Affiliation(s)
- Maria S Chumachenko
- Department of Biochemistry, Faculty of Biology, Belarusian State University, Kurchatova St., 10, Minsk220030, Belarus
| | | | - Sergei V Fedorovich
- Department of Biochemistry, Faculty of Biology, Belarusian State University, Kurchatova St., 10, Minsk220030, Belarus
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New Markers of Platelet Activation and Reactivity and Oxidative Stress Parameters in Patients Undergoing Coronary Artery Bypass Grafting. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:8915253. [PMID: 34257821 PMCID: PMC8257340 DOI: 10.1155/2021/8915253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 06/05/2021] [Indexed: 12/25/2022]
Abstract
Objective Recent studies have shown that the red cell distribution width- (RDW-) to-platelet (PLT) count ratio (i.e., RPR) and the mean platelet volume (MPV)/PLT ratio (i.e. MPR) are more sensitive markers of atherosclerosis-connected risk than RDW and PLT alone. The present study is aimed at investigating the oxidative stress status and these two new markers of platelet activation in two different heart surgery modalities: cardiopulmonary bypass (CPB) and off-pump coronary artery bypass (OPCAB). We also aimed to test the possible relationship between RPR and MPR, respectively, and the severity and complexity of atherosclerotic plaque, measured as Syntax Score. Patients and Methods. A total of 107 patients encompassed this prospective study (i.e., 60 patients in CPB group and 47 patients in OPCAB). Blood samples were drawn at several time intervals: before skin incision (t1), immediately after intervention (t2), 6 h (t3), 24 h (t4), 48 h (t5), and 96 h after cessation of the operation (t6). Results The values of RPR and MPR were similar in CPB and OPCAB before surgery and started to rise in t2 (i.e., immediately after the intervention). This increase lasted to t5 (i.e., 48 hours after the intervention), when it became the highest. After that, both markers started to regress about the 96th hour after the beginning of surgery. Nominal values of both indices were higher in CPB than in OPCAB in all study points after the surgery. Furthermore, a significantly higher level of antioxidative parameters (i.e., total sulfhydryl groups and paraoxonase 1) in the OPCAB group compared to the CPB group was noted at t5 study point (i.e., 48 hours after the surgery), whereas no significant difference was noted in prooxidant levels (i.e., lipid hydroperoxides and advanced oxidation protein products) between these groups at this study point. MPR and RPR correlated positively with Syntax Score at several study points after the surgery completion. Syntax Score, MPR, and RPR showed good clinical accuracy in surgery-related complication prediction ((AUC = 0.736), 95th CI (0.616-0.856), P = 0.003)). Conclusion When combined, MPV, RDW, and platelet count, such as MPR and RPR, could be good predictors of coronary artery disease status, regarding the aspect of joint inflammation, oxidative stress, and thrombosis.
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Alves-Silva JM, Zuzarte M, Girão H, Salgueiro L. The Role of Essential Oils and Their Main Compounds in the Management of Cardiovascular Disease Risk Factors. Molecules 2021; 26:molecules26123506. [PMID: 34207498 PMCID: PMC8227493 DOI: 10.3390/molecules26123506] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/01/2021] [Accepted: 06/02/2021] [Indexed: 12/28/2022] Open
Abstract
Cardiovascular diseases (CVDs) are a global health burden that greatly impact patient quality of life and account for a huge number of deaths worldwide. Despite current therapies, several side effects have been reported that compromise patient adherence; thus, affecting therapeutic benefits. In this context, plant metabolites, namely volatile extracts and compounds, have emerged as promising therapeutic agents. Indeed, these compounds, in addition to having beneficial bioactivities, are generally more amenable and present less side effects, allowing better patient tolerance. The present review is an updated compilation of the studies carried out in the last 20 years on the beneficial potential of essential oils, and their compounds, against major risk factors of CVDs. Overall, these metabolites show beneficial potential through a direct effect on these risk factors, namely hypertension, dyslipidemia and diabetes, or by acting on related targets, or exerting general cellular protection. In general, monoterpenic compounds are the most studied regarding hypotensive and anti-dyslipidemic/antidiabetic properties, whereas phenylpropanoids are very effective at avoiding platelet aggregation. Despite the number of studies performed, clinical trials are sparse and several aspects related to essential oil’s features, namely volatility and chemical variability, need to be considered in order to guarantee their efficacy in a clinical setting.
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Affiliation(s)
- Jorge M. Alves-Silva
- Univ Coimbra, Coimbra Institute for Clinical and Biomedical Research, Faculty of Medicine, 3000-548 Coimbra, Portugal; (J.M.A.-S.); (M.Z.); (H.G.)
- Univ Coimbra, Faculty of Pharmacy, 3000-548 Coimbra, Portugal
- Univ Coimbra, Center for Innovative Biomedicine and Biotechnology, 3000-548 Coimbra, Portugal
- Clinical Academic Centre of Coimbra, 3000-548 Coimbra, Portugal
| | - Mónica Zuzarte
- Univ Coimbra, Coimbra Institute for Clinical and Biomedical Research, Faculty of Medicine, 3000-548 Coimbra, Portugal; (J.M.A.-S.); (M.Z.); (H.G.)
- Univ Coimbra, Center for Innovative Biomedicine and Biotechnology, 3000-548 Coimbra, Portugal
- Clinical Academic Centre of Coimbra, 3000-548 Coimbra, Portugal
| | - Henrique Girão
- Univ Coimbra, Coimbra Institute for Clinical and Biomedical Research, Faculty of Medicine, 3000-548 Coimbra, Portugal; (J.M.A.-S.); (M.Z.); (H.G.)
- Univ Coimbra, Center for Innovative Biomedicine and Biotechnology, 3000-548 Coimbra, Portugal
- Clinical Academic Centre of Coimbra, 3000-548 Coimbra, Portugal
| | - Lígia Salgueiro
- Univ Coimbra, Faculty of Pharmacy, 3000-548 Coimbra, Portugal
- Univ Coimbra, Chemical Process Engineering and Forest Products Research Centre, Department of Chemical Engineering, 3030-790 Coimbra, Portugal
- Correspondence:
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Garcia A, Dunoyer-Geindre S, Nolli S, Reny JL, Fontana P. An Ex Vivo and In Silico Study Providing Insights into the Interplay of Circulating miRNAs Level, Platelet Reactivity and Thrombin Generation: Looking beyond Traditional Pharmacogenetics. J Pers Med 2021; 11:jpm11050323. [PMID: 33919053 PMCID: PMC8143175 DOI: 10.3390/jpm11050323] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/14/2021] [Accepted: 04/19/2021] [Indexed: 12/18/2022] Open
Abstract
Platelet reactivity (PR), a key pharmacodynamic (PD) component of the action of antiplatelet drugs in cardiovascular disease (CVD) patients, is highly variable. PR is associated with occurrence or recurrence of thrombotic and bleeding events, but this association is modulated by several factors. Conventional pharmacogenetics explains a minor part of this PR variability, and among determinants of PR, circulating microRNAs (miRNAs) have been the focus of attention during these last years as biomarkers to predict PR and clinical outcomes in CVD. This being said, the impact of miRNAs on platelet function and the mechanisms behind it are largely unknown. The level of a set of candidate miRNAs including miR-126-3p, miR-150-5p, miR-204-5p and miR-223-3p was quantified in plasma samples of stable CVD patients and correlated with PR as assessed by light-transmission aggregometry and in vivo thrombin generation markers. Finally, miRNA target networks were built based on genes involved in platelet function. We show that all candidate miRNAs were associated with platelet aggregation, while only miR-126-3p and miR-223-3p were positively correlated with in vivo thrombin generation markers. In silico analysis identified putative miRNA targets involved in platelet function regulation. Circulating miRNAs were associated with different aspects of platelet reactivity, including platelet aggregation and platelet-supported thrombin generation. This paves the way to a personalized antithrombotic treatment according to miRNA profile in CVD patients.
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Affiliation(s)
- Alix Garcia
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland; (A.G.); (S.D.-G.); (S.N.); (J.-L.R.)
| | - Sylvie Dunoyer-Geindre
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland; (A.G.); (S.D.-G.); (S.N.); (J.-L.R.)
| | - Séverine Nolli
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland; (A.G.); (S.D.-G.); (S.N.); (J.-L.R.)
| | - Jean-Luc Reny
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland; (A.G.); (S.D.-G.); (S.N.); (J.-L.R.)
- Division of General Internal Medicine, Geneva University Hospitals, 1205 Geneva, Switzerland
| | - Pierre Fontana
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland; (A.G.); (S.D.-G.); (S.N.); (J.-L.R.)
- Division of Angiology and Haemostasis, Geneva University Hospitals, 1205 Geneva, Switzerland
- Correspondence: ; Tel.: +41-22-372-97-51
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Braune S, Küpper JH, Jung F. Effect of Prostanoids on Human Platelet Function: An Overview. Int J Mol Sci 2020; 21:ijms21239020. [PMID: 33260972 PMCID: PMC7730041 DOI: 10.3390/ijms21239020] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/19/2020] [Accepted: 11/23/2020] [Indexed: 12/11/2022] Open
Abstract
Prostanoids are bioactive lipid mediators and take part in many physiological and pathophysiological processes in practically every organ, tissue and cell, including the vascular, renal, gastrointestinal and reproductive systems. In this review, we focus on their influence on platelets, which are key elements in thrombosis and hemostasis. The function of platelets is influenced by mediators in the blood and the vascular wall. Activated platelets aggregate and release bioactive substances, thereby activating further neighbored platelets, which finally can lead to the formation of thrombi. Prostanoids regulate the function of blood platelets by both activating or inhibiting and so are involved in hemostasis. Each prostanoid has a unique activity profile and, thus, a specific profile of action. This article reviews the effects of the following prostanoids: prostaglandin-D2 (PGD2), prostaglandin-E1, -E2 and E3 (PGE1, PGE2, PGE3), prostaglandin F2α (PGF2α), prostacyclin (PGI2) and thromboxane-A2 (TXA2) on platelet activation and aggregation via their respective receptors.
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21
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Goswami C, Chawla S, Thakral D, Pant H, Verma P, Malik PS, ▮ J, Gupta R, Ahuja G, Sengupta D. Molecular signature comprising 11 platelet-genes enables accurate blood-based diagnosis of NSCLC. BMC Genomics 2020; 21:744. [PMID: 33287695 PMCID: PMC7590669 DOI: 10.1186/s12864-020-07147-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 10/12/2020] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Early diagnosis is crucial for effective medical management of cancer patients. Tissue biopsy has been widely used for cancer diagnosis, but its invasive nature limits its application, especially when repeated biopsies are needed. Over the past few years, genomic explorations have led to the discovery of various blood-based biomarkers. Tumor Educated Platelets (TEPs) have, of late, generated considerable interest due to their ability to infer tumor existence and subtype accurately. So far, a majority of the studies involving TEPs have offered marker-panels consisting of several hundreds of genes. Profiling large numbers of genes incur a significant cost, impeding its diagnostic adoption. As such, it is important to construct minimalistic molecular signatures comprising a small number of genes. RESULTS To address the aforesaid challenges, we analyzed publicly available TEP expression profiles and identified a panel of 11 platelet-genes that reliably discriminates between cancer and healthy samples. To validate its efficacy, we chose non-small cell lung cancer (NSCLC), the most prevalent type of lung malignancy. When applied to platelet-gene expression data from a published study, our machine learning model could accurately discriminate between non-metastatic NSCLC cases and healthy samples. We further experimentally validated the panel on an in-house cohort of metastatic NSCLC patients and healthy controls via real-time quantitative Polymerase Chain Reaction (RT-qPCR) (AUC = 0.97). Model performance was boosted significantly after artificial data-augmentation using the EigenSample method (AUC = 0.99). Lastly, we demonstrated the cancer-specificity of the proposed gene-panel by benchmarking it on platelet transcriptomes from patients with Myocardial Infarction (MI). CONCLUSION We demonstrated an end-to-end bioinformatic plus experimental workflow for identifying a minimal set of TEP associated marker-genes that are predictive of the existence of cancers. We also discussed a strategy for boosting the predictive model performance by artificial augmentation of gene expression data.
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Affiliation(s)
- Chitrita Goswami
- Department of Computer Science and Engineering, Indraprastha Institute of Information Technology, New Delhi, India
| | - Smriti Chawla
- Department of Computational Biology, Indraprastha Institute of Information Technology, New Delhi, India
| | - Deepshi Thakral
- Laboratory Oncology Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Himanshu Pant
- Department of Electrical Engineering, Indian Institute of Technology, New Delhi, India
| | - Pramod Verma
- Laboratory Oncology Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Prabhat Singh Malik
- Department of Medical Oncology, All India Institute of Medical Sciences, New Delhi, India
| | - Jayadeva ▮
- Department of Electrical Engineering, Indian Institute of Technology, New Delhi, India
| | - Ritu Gupta
- Laboratory Oncology Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Gaurav Ahuja
- Department of Computational Biology, Indraprastha Institute of Information Technology, New Delhi, India
| | - Debarka Sengupta
- Department of Computer Science and Engineering, Indraprastha Institute of Information Technology, New Delhi, India
- Department of Computational Biology, Indraprastha Institute of Information Technology, New Delhi, India
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
- Centre for Artificial Intelligence, Indraprastha Institute of Information Technology, New Delhi, India
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Neu CT, Gutschner T, Haemmerle M. Post-Transcriptional Expression Control in Platelet Biogenesis and Function. Int J Mol Sci 2020; 21:ijms21207614. [PMID: 33076269 PMCID: PMC7589263 DOI: 10.3390/ijms21207614] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/06/2020] [Accepted: 10/13/2020] [Indexed: 02/06/2023] Open
Abstract
Platelets are highly abundant cell fragments of the peripheral blood that originate from megakaryocytes. Beside their well-known role in wound healing and hemostasis, they are emerging mediators of the immune response and implicated in a variety of pathophysiological conditions including cancer. Despite their anucleate nature, they harbor a diverse set of RNAs, which are subject to an active sorting mechanism from megakaryocytes into proplatelets and affect platelet biogenesis and function. However, sorting mechanisms are poorly understood, but RNA-binding proteins (RBPs) have been suggested to play a crucial role. Moreover, RBPs may regulate RNA translation and decay following platelet activation. In concert with other regulators, including microRNAs, long non-coding and circular RNAs, RBPs control multiple steps of the platelet life cycle. In this review, we will highlight the different RNA species within platelets and their impact on megakaryopoiesis, platelet biogenesis and platelet function. Additionally, we will focus on the currently known concepts of post-transcriptional control mechanisms important for RNA fate within platelets with a special emphasis on RBPs.
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Affiliation(s)
- Carolin T. Neu
- Institute of Pathology, Section for Experimental Pathology, Medical Faculty, Martin-Luther University Halle-Wittenberg, 06120 Halle/Saale, Germany;
| | - Tony Gutschner
- Junior Research Group ‘RNA Biology and Pathogenesis’, Medical Faculty, Martin-Luther University Halle-Wittenberg, 06120 Halle/Saale, Germany;
| | - Monika Haemmerle
- Institute of Pathology, Section for Experimental Pathology, Medical Faculty, Martin-Luther University Halle-Wittenberg, 06120 Halle/Saale, Germany;
- Correspondence: ; Tel.: +49-345-557-3964
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The Antimicrobial Cathelicidin CRAMP Augments Platelet Activation during Psoriasis in Mice. Biomolecules 2020; 10:biom10091267. [PMID: 32887440 PMCID: PMC7565973 DOI: 10.3390/biom10091267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/24/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023] Open
Abstract
Platelet-associated complications including thrombosis, thrombocytopenia, and haemorrhage are commonly observed during various inflammatory diseases such as psoriasis. Although several mechanisms that may contribute to the dysfunction of platelets during inflammatory diseases have been reported, knowledge on the primary molecules/mechanisms that underpin platelet-associated complications in such conditions is not fully established. Here, we report the significance of the mouse antimicrobial cathelicidin, mouse cathelicidin-related antimicrobial peptide (mCRAMP) (an orthologue of LL37 in humans), on the modulation of platelet reactivity during psoriasis using Imiquimod-induced psoriasis in mice as an inflammatory disease model for psoriasis vulgaris in humans. The activation of platelets during psoriasis is increased as evidenced by the elevated levels of fibrinogen binding and P-selectin exposure on the surface of platelets, and the level of soluble P-selectin in the plasma of psoriatic mice. The skin and plasma of psoriatic mice displayed increased levels of mCRAMP. Moreover, the plasma of psoriatic mice augmented the activation of platelets obtained from healthy mice. The effect of mCRAMP is partially mediated through formyl peptide receptor 2/3 (Fpr2/3, the orthologue to human FPR2/ALX) in platelets as a significant reduction in their activation was observed when FPR2/ALX-selective inhibitors such as WRW4 or Fpr2/3-deficient mouse platelets were used in these assays. Since the level of antimicrobial cathelicidin is increased in numerous inflammatory diseases such as psoriasis, atherosclerosis, and inflammatory bowel disease, the results of this study point towards a critical role for antimicrobial cathelicidin and FPR2/ALX in the development of platelet-related complications in such diseases.
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Alarcón M, Bustos M, Mendez D, Fuentes E, Palomo I, Lutz M. In Vitro Assay of Quinoa (Chenopodium quinoa Willd.) and Lupin (Lupinus spp.) Extracts on Human Platelet Aggregation. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2020; 75:215-222. [PMID: 32086676 DOI: 10.1007/s11130-019-00786-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Cardiovascular disease (CVD) is the leading cause of death throughout the world. A major risk factor for CVD is platelet aggregation. Various plant extracts exhibit anti-aggregatory action in vitro. The dietary intake of traditional plant crops such as quinoa (Chenopodium quinoa Willd) and lupin (Lupinus spp., Fabaceae family), highly recognized for their high nutritional value, is increasing worldwide. The aim of the study was to assay possible antiplatelet effects of quinoa and lupin bean extracts in vitro. The proximate chemical composition of quinoa grains and the three most widely known lupin cultivars: blue (L. angustifolius), yellow (L. luteus or mutabilis) and white (L. albus) grown in Chile were analyzed. The anti-aggregation activity of the ethanol extracts of the crops was assayed using flow cytometry in ADP-stimulated human platelets, and their inhibition of the maximal platelet aggregation was measured. All the lupin extracts exhibited a significant anti-aggregatory effect (p < 0.0001), while quinoa extracts did not exert this effect compared to control platelets. In conclusion, lupin beans extracts exhibited an anti-aggregatory effect on activated human platelets.
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Affiliation(s)
- Marcelo Alarcón
- Thematic Task Force on Aging, CUECH Research Network, Santiago, Chile
- Thrombosis Research Center, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences and Interdisciplinary Excellence Research Program on Healthy Ageing (PIEI-ES), Universidad de Talca, 2 Norte 685, Talca, Chile
| | - Michelle Bustos
- Thrombosis Research Center, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences and Interdisciplinary Excellence Research Program on Healthy Ageing (PIEI-ES), Universidad de Talca, 2 Norte 685, Talca, Chile
| | - Diego Mendez
- Thrombosis Research Center, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences and Interdisciplinary Excellence Research Program on Healthy Ageing (PIEI-ES), Universidad de Talca, 2 Norte 685, Talca, Chile
| | - Eduardo Fuentes
- Thematic Task Force on Aging, CUECH Research Network, Santiago, Chile
- Thrombosis Research Center, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences and Interdisciplinary Excellence Research Program on Healthy Ageing (PIEI-ES), Universidad de Talca, 2 Norte 685, Talca, Chile
| | - Ivan Palomo
- Thematic Task Force on Aging, CUECH Research Network, Santiago, Chile.
- Thrombosis Research Center, Department of Clinical Biochemistry and Immunohematology, Faculty of Health Sciences and Interdisciplinary Excellence Research Program on Healthy Ageing (PIEI-ES), Universidad de Talca, 2 Norte 685, Talca, Chile.
| | - Mariane Lutz
- Thematic Task Force on Aging, CUECH Research Network, Santiago, Chile.
- Interdisciplinary Center for Health Studies, CIESAL, Faculty of Medicine, Universidad de Valparaíso, Viña del Mar, Chile.
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Szőke H, Kovács Z, Bókkon I, Vagedes J, Szabó AE, Hegyi G, Sterner MG, Kiss Á, Kapócs G. Gut dysbiosis and serotonin: intestinal 5-HT as a ubiquitous membrane permeability regulator in host tissues, organs, and the brain. Rev Neurosci 2020; 31:415-425. [DOI: 10.1515/revneuro-2019-0095] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 12/16/2019] [Indexed: 12/12/2022]
Abstract
AbstractThe microbiota and microbiome and disruption of the gut-brain axis were linked to various metabolic, immunological, physiological, neurodevelopmental, and neuropsychiatric diseases. After a brief review of the relevant literature, we present our hypothesis that intestinal serotonin, produced by intestinal enterochromaffin cells, picked up and stored by circulating platelets, participates and has an important role in the regulation of membrane permeability in the intestine, brain, and other organs. In addition, intestinal serotonin may act as a hormone-like continuous regulatory signal for the whole body, including the brain. This regulatory signal function is mediated by platelets and is primarily dependent on and reflects the intestine’s actual health condition. This hypothesis may partially explain why gut dysbiosis could be linked to various human pathological conditions as well as neurodevelopmental and neuropsychiatric disorders.
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Affiliation(s)
- Henrik Szőke
- Department of CAM, Faculty of Health Sciences, University of Pécs, Pécs, Hungary
- Doctorate School, Faculty of Health Sciences, University of Pécs, Pécs, Hungary
| | - Zoltán Kovács
- Doctorate School, Faculty of Health Sciences, University of Pécs, Pécs, Hungary
| | - István Bókkon
- Vision Research Institute, Neuroscience and Consciousness Research Department, Lowell, MA, USA
- Psychosomatic Outpatient Clinics, Budapest, Hungary
| | - Jan Vagedes
- University of Tübingen, Children’s Hospital, Tübingen, Germany
- ARCIM Institute (Academic Research in Complementary and Integrative Medicine), Filderstadt, Germany
| | | | - Gabriella Hegyi
- Department of CAM, Faculty of Health Sciences, University of Pécs, Pécs, Hungary
- Doctorate School, Faculty of Health Sciences, University of Pécs, Pécs, Hungary
| | | | - Ágnes Kiss
- Doctorate School, Faculty of Health Sciences, University of Pécs, Pécs, Hungary
| | - Gábor Kapócs
- Buda Family-Centered Mental Health Centre, Department of Psychiatry and Psychiatric Rehabilitation, Teaching Department of Semmelweis University, New Saint John Hospital, Budapest, Hungary
- Institute for Behavioral Sciences, Semmelweis University, Budapest, Hungary
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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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Kosareva A, Abou-Elkacem L, Chowdhury S, Lindner JR, Kaufmann BA. Seeing the Invisible-Ultrasound Molecular Imaging. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:479-497. [PMID: 31899040 DOI: 10.1016/j.ultrasmedbio.2019.11.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 06/10/2023]
Abstract
Ultrasound molecular imaging has been developed in the past two decades with the goal of non-invasively imaging disease phenotypes on a cellular level not depicted on anatomic imaging. Such techniques already play a role in pre-clinical research for the assessment of disease mechanisms and drug effects, and are thought to in the future contribute to earlier diagnosis of disease, assessment of therapeutic effects and patient-tailored therapy in the clinical field. In this review, we first describe the chemical composition and structure as well as the in vivo behavior of the ultrasound contrast agents that have been developed for molecular imaging. We then discuss the strategies that are used for targeting of contrast agents to specific cellular targets and protocols used for imaging. Next we describe pre-clinical data on imaging of thrombosis, atherosclerosis and microvascular inflammation and in oncology, including the pathophysiological principles underlying the selection of targets in each area. Where applicable, we also discuss efforts that are currently underway for translation of this technique into the clinical arena.
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Affiliation(s)
- Alexandra Kosareva
- Cardiovascular Molecular Imaging, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Lotfi Abou-Elkacem
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford, California, USA
| | - Sayan Chowdhury
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford, California, USA
| | - Jonathan R Lindner
- Knight Cardiovascular Institute, Portland, Oregon, USA; Oregon National Primate Research Center, Oregon Health & Science University, Portland, Oregon, USA
| | - Beat A Kaufmann
- Cardiovascular Molecular Imaging, Department of Biomedicine, University of Basel, Basel, Switzerland; Department of Cardiology, University Hospital and University of Basel, Basel, Switzerland.
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Jasinska AJ, Pandrea I, He T, Benjamin C, Newton M, Lee JC, Freimer NB, Coppola G, Jentsch JD. Immunosuppressive effect and global dysregulation of blood transcriptome in response to psychosocial stress in vervet monkeys (Chlorocebus sabaeus). Sci Rep 2020; 10:3459. [PMID: 32103041 PMCID: PMC7044305 DOI: 10.1038/s41598-020-59934-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/03/2020] [Indexed: 11/09/2022] Open
Abstract
Psychosocial stressors - life events that challenge social support and relationships - represent powerful risk factors for human disease; included amongst these events are relocation, isolation and displacement. To evaluate the impact of a controlled psychosocial stressor on physiology and underlying molecular pathways, we longitudinally studied the influence of a 28-day period of quarantine on biomarkers of immune signalling, microbial translocation, glycaemic health and blood transcriptome in the wild-born vervet monkey. This event caused a coordinated, mostly transient, reduction of circulating levels of nine immune signalling molecules. These were paralleled by a massive dysregulation of blood transcriptome, including genes implicated in chronic pathologies and immune functions. Immune and inflammatory functions were enriched among the genes downregulated in response to stress. An upregulation of genes involved in blood coagulation, platelet activation was characteristic of the rapid response to stress induction. Stress also decreased neutrophils and increased CD4 + T cell proportions in blood. This model of psychosocial stress, characterised by an immune dysregulation at the transcriptomic, molecular and cellular levels, creates opportunities to uncover the underlying mechanisms of stress-related diseases with an immune component, including cardiovascular diseases and susceptibility to infections.
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Affiliation(s)
- Anna J Jasinska
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, The University of California Los Angeles, California, USA.
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland.
| | - Ivona Pandrea
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Tianyu He
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Cassandra Benjamin
- St. Kitts Biomedical Research Foundation, St. Kitts, West Indies, Saint Kitts and Nevis
| | - Maurice Newton
- St. Kitts Biomedical Research Foundation, St. Kitts, West Indies, Saint Kitts and Nevis
| | - Jen Chieh Lee
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, The University of California Los Angeles, California, USA
| | - Nelson B Freimer
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, The University of California Los Angeles, California, USA
| | - Giovanni Coppola
- Center for Neurobehavioral Genetics, Semel Institute for Neuroscience and Human Behavior, The University of California Los Angeles, California, USA
- Department of Neurology, The University of California Los Angeles, California, USA
| | - James D Jentsch
- Department of Psychology, Binghamton University, Binghamton, NY, 13902, USA
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Increased Cardiovascular Risk Associated with Chemical Sensitivity to Perfluoro-Octanoic Acid: Role of Impaired Platelet Aggregation. Int J Mol Sci 2020; 21:ijms21020399. [PMID: 31936344 PMCID: PMC7014465 DOI: 10.3390/ijms21020399] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/20/2019] [Accepted: 01/03/2020] [Indexed: 02/06/2023] Open
Abstract
Perfluoro–alkyl substances (PFAS), particularly perfluoro–octanoic acid (PFOA), are persisting environmental chemicals showing bioaccumulation in human tissues. Recently, exposure to PFAS has been associated with increased prevalence of cardiovascular diseases (CVDs). However, a causal role of PFAS in atherosclerosis pathogenesis is under-investigated. Here, we investigated the effect of PFOA exposure on platelets’ function, a key player in atherosclerosis process. PFOA accumulation in platelets was evaluated by liquid chromatography-mass spectrometry. Changes in platelets’ membrane fluidity and activation after dose-dependent exposure to PFOA were evaluated by merocyanine 540 (MC540) and anti P-Selectin immune staining at flow cytometry, respectively. Intracellular calcium trafficking was analyzed with Fluo4M probe, time-lapse live imaging. Platelets’ aggregation state was also evaluated with Multiplate® aggregometry analyzer in 48 male subjects living in a specific area of the Veneto region with high PFAS environmental pollution, and compared with 30 low-exposure control subjects. Platelets’ membrane was the major target of PFOA, whose dose-dependent accumulation was associated in turn with increased membrane fluidity, as expected by a computational model; increased activation at resting condition; and both calcium uptake and aggregation upon activation. Finally, exposed subjects had higher serum and platelets levels of PFOA, together with increased aggregation parameters at Multiplate®, compared with controls. These data help to explain the emerging association between PFAS exposure and CVD.
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Nam GS, Lee KS, Nam KS. Anti‑platelet activity of mineral‑balanced deep sea water is mediated via the regulation of Akt and ERK pathway crosstalk. Int J Mol Med 2020; 45:658-668. [PMID: 31894254 DOI: 10.3892/ijmm.2019.4424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 11/14/2019] [Indexed: 11/06/2022] Open
Abstract
Mineral‑balanced deep sea water (MBDSW), an unlimited natural sea source, has been demonstrated to minimize the risk of developing cardiovascular diseases, such as obesity, hypertension, inflammation and hyperlipidemia. This study investigated the effects of MBDSW [magnesium (Mg):calcium (Ca) ratio, 3:1] on platelet activation. MBDSW significantly inhibited the collagen‑ and thrombin‑induced platelet aggregation of human platelets. In collagen‑induced platelets, MBDSW inhibited intracellular calcium mobilization, granule secretion [serotonin, adenosine triphosphate (ATP) and P‑selectin expression] and thromboxane A2 (TXA2) production. Moreover, MBDSW markedly inhibited Akt and extracellular signal‑regulated kinase (ERK) phosphorylation, but not that of c‑Jun N‑terminal kinase (JNK) and p38. Moreover, MBDSW phosphorylated inositol 1,4,5‑triphosphate receptor (IP3R) and vasodilator‑stimulated phosphoprotein (VASP), and it increased the cyclic adenosine monophosphate (cAMP) level in collagen‑induced human platelets. Dipyridamole, a phosphodiesterase (PDE) inhibitor, significantly increased the cAMP level and regulated the Akt, ERK and VASP (Ser157) levels in a manner similar to that of MBDSW. In addition, LY294002, an Akt inhibitor, inhibited the phosphorylation of ERK, and U0126, an ERK inhibitor, inhibited the phosphorylation of Akt. Taken together, the results of the present investigation suggest that the inhibitory effects of MBDSW on platelet aggregation may be associated with the cross‑inhibition of Akt and ERK phosphorylation. These results strongly indicate that MBDSW may have preventive or therapeutic potential for platelet aggregation‑mediated diseases, such as thrombosis, atherosclerosis and myocardial infarction.
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Affiliation(s)
- Gi Suk Nam
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk‑do 38066, Republic of Korea
| | - Kyu-Shik Lee
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk‑do 38066, Republic of Korea
| | - Kyung-Soo Nam
- Department of Pharmacology and Intractable Disease Research Center, School of Medicine, Dongguk University, Gyeongju, Gyeongsangbuk‑do 38066, Republic of Korea
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Park JH, Dehaini D, Zhou J, Holay M, Fang RH, Zhang L. Biomimetic nanoparticle technology for cardiovascular disease detection and treatment. NANOSCALE HORIZONS 2020; 5:25-42. [PMID: 32133150 PMCID: PMC7055493 DOI: 10.1039/c9nh00291j] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Cardiovascular disease (CVD), which encompasses a number of conditions that can affect the heart and blood vessels, presents a major challenge for modern-day healthcare. Nearly one in three people has some form of CVD, with many suffering from multiple or intertwined conditions that can ultimately lead to traumatic events such as a heart attack or stroke. While the knowledge obtained in the past century regarding the cardiovascular system has paved the way for the development of life-prolonging drugs and treatment modalities, CVD remains one of the leading causes of death in developed countries. More recently, researchers have explored the application of nanotechnology to improve upon current clinical paradigms for the management of CVD. Nanoscale delivery systems have many advantages, including the ability to target diseased sites, improve drug bioavailability, and carry various functional payloads. In this review, we cover the different ways in which nanoparticle technology can be applied towards CVD diagnostics and treatments. The development of novel biomimetic platforms with enhanced functionalities is discussed in detail.
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Affiliation(s)
| | | | - Jiarong Zhou
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Maya Holay
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Ronnie H. Fang
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Liangfang Zhang
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
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Alves-Silva JM, Zuzarte M, Marques C, Girão H, Salgueiro L. Protective Effects of Phenylpropanoids and Phenylpropanoid-rich Essential Oils on the Cardiovascular System. Mini Rev Med Chem 2019; 19:1459-1471. [PMID: 31218957 DOI: 10.2174/1389557519666190620091915] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 05/31/2019] [Accepted: 06/06/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND Cardiovascular diseases are the leading cause of global mortality with a tendency to increase due to population ageing as well as an increase in associated risk factors. Although current therapies improve survival rates, they are associated with several side effects, thus justifying the development of novel preventive and/or therapeutic approaches. In this way, plant metabolites such as essential oils have emerged as promising agents due to their biological effects. OBJECTIVE Bearing in mind that several essential oils are characterized by high amounts of phenylpropanoids, which may play a crucial role in the activity of these volatile extracts, a comprehensive and systematic review focusing on the cardiovascular effects of phenylpropanoid-rich essential oils is presented. METHODS Popular search engines including PubMed, Science Direct, Scopus and Google Scholar were consulted and papers from 2000 onwards were selected. Non-volatile phenylpropanoids were not considered in this review. RESULTS A compilation of the current knowledge on this thematic pointed out beneficial effects for volatile phenylpropanoids namely hypotensive, vasorelaxant, antiplatelet aggregation, antidyslipidaemic and antidiabetic, as well as protective properties against ischemia/reperfusion injury and heart hypertrophy. CONCLUSION A better understanding of the protective effects of phenylpropanoids on the cardiovascular system is presented, thus paving the way towards future research on plant-based therapies for cardiovascular diseases.
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Affiliation(s)
- Jorge M Alves-Silva
- iCBR, Faculty of Medicine, University of Coimbra, Azinhaga de Sta Comba, Coimbra, Portugal.,CIEPQPF and Faculty of Pharmacy, University of Coimbra, Azinhaga de Sta Comba, Coimbra, Portugal
| | - Mónica Zuzarte
- iCBR, Faculty of Medicine, University of Coimbra, Azinhaga de Sta Comba, Coimbra, Portugal
| | - Carla Marques
- iCBR, Faculty of Medicine, University of Coimbra, Azinhaga de Sta Comba, Coimbra, Portugal
| | - Henrique Girão
- iCBR, Faculty of Medicine, University of Coimbra, Azinhaga de Sta Comba, Coimbra, Portugal
| | - Lígia Salgueiro
- CIEPQPF and Faculty of Pharmacy, University of Coimbra, Azinhaga de Sta Comba, Coimbra, Portugal
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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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Melchinger H, Jain K, Tyagi T, Hwa J. Role of Platelet Mitochondria: Life in a Nucleus-Free Zone. Front Cardiovasc Med 2019; 6:153. [PMID: 31737646 PMCID: PMC6828734 DOI: 10.3389/fcvm.2019.00153] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 10/08/2019] [Indexed: 12/19/2022] Open
Abstract
Platelets are abundant, small, anucleate circulating cells, serving many emerging pathophysiological roles beyond hemostasis; including active critical roles in thrombosis, injury response, and immunoregulation. In the absence of genomic DNA transcriptional regulation (no nucleus), platelets require strategic prepackaging of all the needed RNA and organelles from megakaryocytes, to sense stress (e.g., hyperglycemia), to protect themselves from stress (e.g., mitophagy), and to communicate a stress response to other cells (e.g., granule and microparticle release). Distinct from avian thrombocytes that have a nucleus, the absence of a nucleus allows the mammalian platelet to maintain its small size, permits morphological flexibility, and may improve speed and efficiency of protein expression in response to stress. In the absence of a nucleus, platelet lifespan of 7–10 days, is largely determined by the mitochondria. The packaging of 5–8 mitochondria is critical in aerobic respiration and yielding metabolic substrates needed for function and survival. Mitochondria damage or dysfunction, as observed with several disease processes, results in greatly attenuated platelet survival and increased risk for thrombovascular events. Here we provide insights into the emerging roles of platelets despite the lack of a nucleus, and the key role played by mitochondria in platelet function and survival both in health and disease.
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Affiliation(s)
- Hannah Melchinger
- Department of Internal Medicine, Yale Cardiovascular Research Center, Yale School of Medicine, New Haven, CT, United States
| | - Kanika Jain
- Department of Internal Medicine, Yale Cardiovascular Research Center, Yale School of Medicine, New Haven, CT, United States
| | - Tarun Tyagi
- Department of Internal Medicine, Yale Cardiovascular Research Center, Yale School of Medicine, New Haven, CT, United States
| | - John Hwa
- Department of Internal Medicine, Yale Cardiovascular Research Center, Yale School of Medicine, New Haven, CT, United States
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Trostchansky A, Moore-Carrasco R, Fuentes E. Oxidative pathways of arachidonic acid as targets for regulation of platelet activation. Prostaglandins Other Lipid Mediat 2019; 145:106382. [PMID: 31634570 DOI: 10.1016/j.prostaglandins.2019.106382] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 08/12/2019] [Accepted: 09/03/2019] [Indexed: 12/17/2022]
Abstract
Platelet activation plays an important role in acute and chronic cardiovascular disease states. Multiple pathways contribute to platelet activation including those dependent upon arachidonic acid. Arachidonic acid is released from the platelet membrane by phospholipase A2 action and is then metabolized in the cytosol by specific arachidonic acid oxidation enzymes including prostaglandin H synthase, 12-lipoxygenase, and cytochrome P450 to produce pro- and anti-inflammatory eicosanoids. This review aims to analyze the role of arachidonic acid oxidation on platelet activation, the enzymes that use it as a substrate associated as novel therapeutics target for antiplatelet drugs.
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Affiliation(s)
- Andres Trostchansky
- Departamento de Bioquimica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
| | - Rodrigo Moore-Carrasco
- Departamento de Bioquímica Clínica e Inmunohematología, Facultad de Ciencias de la Salud, Programa de Investigación Asociativa en Cáncer Gástrico (PIA-CG), Universidad de Talca, Chile
| | - Eduardo Fuentes
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Interdisciplinary Center on Aging, Universidad de Talca, Talca, Chile.
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Role of Inflammatory Cell Subtypes in Heart Failure. J Immunol Res 2019; 2019:2164017. [PMID: 31565659 PMCID: PMC6745095 DOI: 10.1155/2019/2164017] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 07/25/2019] [Indexed: 02/07/2023] Open
Abstract
Inflammation is a well-known feature of heart failure. Studies have shown that while some inflammation is required for repair during injury and is protective, prolonged inflammation leads to myocardial remodeling and apoptosis of cardiac myocytes. Various types of immune cells are implicated in myocardial inflammation and include neutrophils, macrophages, eosinophils, mast cells, natural killer cells, T cells, and B cells. Recent clinical trials have targeted inflammatory cascades as therapy for heart failure with limited success. A better understanding of the temporal course of the infiltration of the different immune cells and their contribution to the inflammatory process may improve the success for therapy. This brief review outlines the major cell types involved in heart failure, and some of their actions are summarized in the supplementary figure.
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Hernández B, Fuentes E, Palomo I, Alarcón M. Increased platelet function during frailty. Exp Hematol 2019; 77:12-25.e2. [DOI: 10.1016/j.exphem.2019.08.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 08/24/2019] [Accepted: 08/26/2019] [Indexed: 12/19/2022]
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Le Blanc J, Lordkipanidzé M. Platelet Function in Aging. Front Cardiovasc Med 2019; 6:109. [PMID: 31448291 PMCID: PMC6692461 DOI: 10.3389/fcvm.2019.00109] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 07/22/2019] [Indexed: 12/20/2022] Open
Abstract
Aging is associated with an increased incidence of cardiovascular disease and thrombosis. Platelets play a major role in maintaining hemostasis and in thrombus formation, making them a key player in thrombotic disorders. Whereas it is well-known that platelet aggregability is increased in vascular diseases, the contribution of age-related changes in platelet biology to cardiovascular risk is not well-understood. Several lines of evidence support that platelets from older subjects differ in their function and structure, making platelets more prone to activation and less sensitive to inhibition. These age-related changes could lead to platelet hyperactivity and to the development of a prothrombotic state in advanced age. This review will focus on platelet biochemical modifications during aging and on the mechanisms by which these alterations could lead to thrombotic disease.
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Affiliation(s)
- Jessica Le Blanc
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
| | - Marie Lordkipanidzé
- Research Center, Montreal Heart Institute, Montreal, QC, Canada.,Faculty of Pharmacy, Université de Montréal, Montreal, QC, Canada
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Esmaeili S, Azizian S, Shahmoradi B, Moradi S, Shahlaei M, Khodarahmi R. Dipyridamole inhibits α-amylase/α-glucosidase at sub-micromolar concentrations; in-vitro, in-vivo and theoretical studies. Bioorg Chem 2019; 88:102972. [DOI: 10.1016/j.bioorg.2019.102972] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 01/20/2023]
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40
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Buurma M, van Diemen JJK, Thijs A, Numans ME, Bonten TN. Circadian Rhythm of Cardiovascular Disease: The Potential of Chronotherapy With Aspirin. Front Cardiovasc Med 2019; 6:84. [PMID: 31281821 PMCID: PMC6595227 DOI: 10.3389/fcvm.2019.00084] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/04/2019] [Indexed: 01/05/2023] Open
Abstract
Almost all the systems in our body adhere to a daily 24 h rhythm. The cardiovascular system is also affected by this 24 h rhythm. In the morning there is a change in various cardiovascular processes, including platelet aggregability. These changes may play a role in the relative excess of early morning cardiovascular events. The number of recurrent cardiovascular diseases (CVD) could, in theory, be reduced by responding to this 24 h rhythm with timed medication intake (chronotherapy), which also applies to aspirin. Multiple studies on chronotherapy with low-dose aspirin are promising, showing a decrease in early morning platelet activity with evening intake compared with morning intake. However, in order to further demonstrate its clinical impact, randomized trials with cardiovascular events as a primary outcome are needed. This review discusses the available evidence of the effects of circadian rhythm on CVD and the potential positive effect of chronotherapy with aspirin.
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Affiliation(s)
- Marleen Buurma
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, Netherlands
| | - Jeske J. K. van Diemen
- Department of Internal Medicine, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Abel Thijs
- Department of Internal Medicine, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Mattijs E. Numans
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, Netherlands
| | - Tobias N. Bonten
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, Netherlands
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41
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Read RW, Schlauch KA, Elhanan G, Metcalf WJ, Slonim AD, Aweti R, Borkowski R, Grzymski JJ. GWAS and PheWAS of red blood cell components in a Northern Nevadan cohort. PLoS One 2019; 14:e0218078. [PMID: 31194788 PMCID: PMC6564422 DOI: 10.1371/journal.pone.0218078] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 05/21/2019] [Indexed: 01/20/2023] Open
Abstract
In this study, we perform a full genome-wide association study (GWAS) to identify statistically significantly associated single nucleotide polymorphisms (SNPs) with three red blood cell (RBC) components and follow it with two independent PheWASs to examine associations between phenotypic data (case-control status of diagnoses or disease), significant SNPs, and RBC component levels. We first identified associations between the three RBC components: mean platelet volume (MPV), mean corpuscular volume (MCV), and platelet counts (PC), and the genotypes of approximately 500,000 SNPs on the Illumina Infimum DNA Human OmniExpress-24 BeadChip using a single cohort of 4,673 Northern Nevadans. Twenty-one SNPs in five major genomic regions were found to be statistically significantly associated with MPV, two regions with MCV, and one region with PC, with p<5x10-8. Twenty-nine SNPs and nine chromosomal regions were identified in 30 previous GWASs, with effect sizes of similar magnitude and direction as found in our cohort. The two strongest associations were SNP rs1354034 with MPV (p = 2.4x10-13) and rs855791 with MCV (p = 5.2x10-12). We then examined possible associations between these significant SNPs and incidence of 1,488 phenotype groups mapped from International Classification of Disease version 9 and 10 (ICD9 and ICD10) codes collected in the extensive electronic health record (EHR) database associated with Healthy Nevada Project consented participants. Further leveraging data collected in the EHR, we performed an additional PheWAS to identify associations between continuous red blood cell (RBC) component measures and incidence of specific diagnoses. The first PheWAS illuminated whether SNPs associated with RBC components in our cohort were linked with other hematologic phenotypic diagnoses or diagnoses of other nature. Although no SNPs from our GWAS were identified as strongly associated to other phenotypic components, a number of associations were identified with p-values ranging between 1x10-3 and 1x10-4 with traits such as respiratory failure, sleep disorders, hypoglycemia, hyperglyceridemia, GERD and IBS. The second PheWAS examined possible phenotypic predictors of abnormal RBC component measures: a number of hematologic phenotypes such as thrombocytopenia, anemias, hemoglobinopathies and pancytopenia were found to be strongly associated to RBC component measures; additional phenotypes such as (morbid) obesity, malaise and fatigue, alcoholism, and cirrhosis were also identified to be possible predictors of RBC component measures.
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Affiliation(s)
- Robert W. Read
- Applied Innovation Center, Renown Institute for Health Innovation, Desert Research Institute, Reno, NV, United States of America
| | - Karen A. Schlauch
- Applied Innovation Center, Renown Institute for Health Innovation, Desert Research Institute, Reno, NV, United States of America
| | - Gai Elhanan
- Applied Innovation Center, Renown Institute for Health Innovation, Desert Research Institute, Reno, NV, United States of America
| | - William J. Metcalf
- Applied Innovation Center, Renown Institute for Health Innovation, Desert Research Institute, Reno, NV, United States of America
| | | | - Ramsey Aweti
- 23andMe, Inc., Mountain View, CA, United States of America
| | | | - Joseph J. Grzymski
- Applied Innovation Center, Renown Institute for Health Innovation, Desert Research Institute, Reno, NV, United States of America
- Renown Health, Reno, NV, United States of America
- * E-mail:
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42
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Huang HL, Chen CH, Kung CT, Li YC, Sung PH, You HL, Lin YH, Huang WT. Clinical utility of mean platelet volume and immature platelet fraction in acute coronary syndrome. Biomed J 2019; 42:107-115. [PMID: 31130246 PMCID: PMC6541877 DOI: 10.1016/j.bj.2018.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 10/16/2018] [Accepted: 12/17/2018] [Indexed: 01/30/2023] Open
Abstract
Background Platelets play an important role in the pathogenesis of acute coronary syndrome (ACS). Patients with ACS have an increased mean platelet volume (MPV) and immature platelet fraction (IPF) resulting in elevation of thrombotic ability. In this study, we evaluated the diagnostic performance of MPV and IPF in identifying suspected ACS patients at emergency department. Moreover, we investigated the correlation between MPV or IPF with initial troponin I (TnI), one of the current ACS biomarkers. Methods This was a single-center study recruiting suspected ACS patients who had acute chest pain at the emergency department. Whole blood samples were obtained from all participants and MPV and IPF were measured by Sysmex XE-5000 hematology analyzer within 20 min of blood sampling. The diagnostic values of MPV and IPF in identifying ACS were analyzed retrospectively. Result In this study, 63 in 104 suspected ACS patients were diagnosed as ACS (65.3%). MPV and IPF were higher in ACS patients compared to non-ACS patients (MPV: 10.7 ± 0.80 fL vs 10.0 ± 0.64 fL, p < 0.001; IPF: 3.7 ± 2.64% vs 3.1 ± 2.69%, p = 0.030). MPV and IPF were similar in unstable angina and acute myocardial infarction patients. We showed that elevation of MPV could be an independent predictive factor of ACS (odds ratio: 5.038). At the optimal cut-off value of 10.55 fL (AUC 95% CI: 0.637–0.836), the diagnostic performance of MPV in predicting ACS had an area under a receiver operating characteristic curve (AUC) of 0.736 with sensitivity and specificity of 54.2% and 82.8%, respectively. Patients with both of initial TnI and MPV higher than the established cut-off value had increased incidence (3.792 fold) for ACS development compared to patients with TnI below the cut-off value. Furthermore, diagnosing ACS with both MPV and initial TnI increased the positive predictive value from 84.2% to 86.7%. No correlation was observed between MPV or IPF and the mortality rate of ACS patients (MPV: 3.8% vs 11.1%, p = 0.300; IPF: 12.0% vs 37.5%, p = 0.054). Conclusion Here we show that ACS patients have higher MPV and IPF compared to non-ACS patients. We further demonstrate that MPV can be utilized as an independent predictor for early diagnosis of low-risk ACS patients who have acute chest pain.
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Affiliation(s)
- Hsien-Li Huang
- Department of Laboratory Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chih-Hung Chen
- Divisions of General Medicine, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Chia-Te Kung
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yi-Chen Li
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Pei-Hsun Sung
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Huey-Ling You
- Department of Laboratory Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Medical Laboratory Sciences and Biotechnology, Fooyin University, Kaohsiung, Taiwan
| | - Yu-Hung Lin
- Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Wan-Ting Huang
- Department of Laboratory Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Medical Laboratory Sciences and Biotechnology, Fooyin University, Kaohsiung, Taiwan; Department of Pathology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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43
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Cámara M, Fernández-Ruiz V, Sánchez-Mata MC, Domínguez Díaz L, Kardinaal A, van Lieshout M. Evidence of antiplatelet aggregation effects from the consumption of tomato products, according to EFSA health claim requirements. Crit Rev Food Sci Nutr 2019; 60:1515-1522. [DOI: 10.1080/10408398.2019.1577215] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Montaña Cámara
- Department of Nutrition and Food Science, Faculty of Pharmacy, Complutense University, Madrid, Spain
| | - Virginia Fernández-Ruiz
- Department of Nutrition and Food Science, Faculty of Pharmacy, Complutense University, Madrid, Spain
| | - María-Cortes Sánchez-Mata
- Department of Nutrition and Food Science, Faculty of Pharmacy, Complutense University, Madrid, Spain
| | - Laura Domínguez Díaz
- Department of Nutrition and Food Science, Faculty of Pharmacy, Complutense University, Madrid, Spain
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44
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Carubbi C, Masselli E, Pozzi G, Mattioli M, Martini S, Goldoni M, Aloe R, Cervellin G, Vitale M, Gobbi G. Combination of Platelet expression of PKCepsilon and cardiac troponin-I for early diagnosis of chest pain patients in the emergency department. Sci Rep 2019; 9:2125. [PMID: 30765820 PMCID: PMC6375996 DOI: 10.1038/s41598-019-38624-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 12/28/2018] [Indexed: 01/02/2023] Open
Abstract
A rapid differential diagnosis of the clinical conditions underlying chest pain is a relevant clinical issue. Specifically, a fast rule-in or -out of acute myocardial infarction (AMI) is mandatory to improve diagnostic outcome and cost-effectiveness of patient management. We demonstrated that Protein Kinase C (PKC) epsilon is selectively expressed by platelets from AMI patients, accounting for increased platelet activation. Thus, we hypothesized that PKCepsilon-expressing platelets may represent a pathophysiological marker of AMI that could be utilized in combination with troponin-I, the conventional marker of cardiac injury, to add diagnostic information in chest pain workup. In 94 chest pain patients consecutively admitted to Parma University Hospital, we tested the diagnostic performance of flow-cytometric detection of PKCepsilon expressing platelets in discriminating AMI vs. non-AMI conditions. We demonstrated that PKCepsilon-expressing platelets were significantly higher in patients with AMI. Flow cytometry detection of PKCepsilon-expressing platelets showed high sensitivity and specificity (87.5% and 84.4%, respectively) and good diagnostic accuracy (AUC: 0.875). The combination of PKCepsilon expressing platelets and cardiac troponin clearly discriminates patients with 100% and 0% of probability to be affected by AMI. Overall, we highlighted a dual marker strategy potentially useful for a rapid rule-in or -out of myocardial infarction in chest pain patients.
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Affiliation(s)
- Cecilia Carubbi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Elena Masselli
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Giulia Pozzi
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Maria Mattioli
- Division of Cardiology, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Silvia Martini
- Protein Phosphorylation Laboratory, Francis Crick Institute, London, United Kingdom
| | - Matteo Goldoni
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Rosalia Aloe
- Dipartimento di Biochimica ad Elevata Automazione, Dipartimento Diagnostico, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | | | - Marco Vitale
- Department of Medicine and Surgery, University of Parma, Parma, Italy. .,Sport and exercise medicine center (SEM), University of Parma, Parma, Italy. .,CoreLab, Azienda Ospedaliero-Universitaria di Parma, University of Parma, Parma, Italy.
| | - Giuliana Gobbi
- Department of Medicine and Surgery, University of Parma, Parma, Italy.,Sport and exercise medicine center (SEM), University of Parma, Parma, Italy
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45
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Identification of Sex-Specific Transcriptome Responses to Polychlorinated Biphenyls (PCBs). Sci Rep 2019; 9:746. [PMID: 30679748 PMCID: PMC6346099 DOI: 10.1038/s41598-018-37449-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 11/30/2018] [Indexed: 12/16/2022] Open
Abstract
PCBs are classified as xenoestrogens and carcinogens and their health risks may be sex-specific. To identify potential sex-specific responses to PCB-exposure we established gene expression profiles in a population study subdivided into females and males. Gene expression profiles were determined in a study population consisting of 512 subjects from the EnviroGenomarkers project, 217 subjects who developed lymphoma and 295 controls were selected in later life. We ran linear mixed models in order to find associations between gene expression and exposure to PCBs, while correcting for confounders, in particular distribution of white blood cells (WBC), as well as random effects. The analysis was subdivided according to sex and development of lymphoma in later life. The changes in gene expression as a result of exposure to the six studied PCB congeners were sex- and WBC type specific. The relatively large number of genes that are significantly associated with PCB-exposure in the female subpopulation already indicates different biological response mechanisms to PCBs between the two sexes. The interaction analysis between different PCBs and WBCs provides only a small overlap between sexes. In males, cancer-related pathways and in females immune system-related pathways are identified in association with PCBs and WBCs. Future lymphoma cases and controls for both sexes show different responses to the interaction of PCBs with WBCs, suggesting a role of the immune system in PCB-related cancer development.
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Simard T, Jung R, Labinaz A, Faraz MA, Ramirez FD, Di Santo P, Pitcher I, Motazedian P, Gaudet C, Rochman R, Marbach J, Boland P, Sarathy K, Alghofaili S, Russo JJ, Couture E, Beanlands RS, Hibbert B. Adenosine as a Marker and Mediator of Cardiovascular Homeostasis: A Translational Perspective. Cardiovasc Hematol Disord Drug Targets 2019; 19:109-131. [PMID: 30318008 DOI: 10.2174/1871529x18666181011103719] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 08/08/2018] [Accepted: 09/25/2018] [Indexed: 06/08/2023]
Abstract
Adenosine, a purine nucleoside, is produced broadly and implicated in the homeostasis of many cells and tissues. It signals predominantly via 4 purinergic adenosine receptors (ADORs) - ADORA1, ADORA2A, ADORA2B and ADOosine signaling, both through design as specific ADOR agonists and antagonists and as offtarget effects of existing anti-platelet medications. Despite this, adenosine has yet to be firmly established as either a therapeutic or a prognostic tool in clinical medicine to date. Herein, we provide a bench-to-bedside review of adenosine biology, highlighting the key considerations for further translational development of this proRA3 in addition to non-ADOR mediated effects. Through these signaling mechanisms, adenosine exerts effects on numerous cell types crucial to maintaining vascular homeostasis, especially following vascular injury. Both in vitro and in vivo models have provided considerable insights into adenosine signaling and identified targets for therapeutic intervention. Numerous pharmacologic agents have been developed that modulate adenmising molecule.
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Affiliation(s)
- Trevor Simard
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Canada
| | - Richard Jung
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Canada
| | - Alisha Labinaz
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | | | - F Daniel Ramirez
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Pietro Di Santo
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Ian Pitcher
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Pouya Motazedian
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario, ON, Canada
| | - Chantal Gaudet
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Rebecca Rochman
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Jeffrey Marbach
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Paul Boland
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Kiran Sarathy
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Saleh Alghofaili
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Juan J Russo
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Etienne Couture
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
| | - Rob S Beanlands
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Canada
| | - Benjamin Hibbert
- CAPITAL research group, Division of Cardiology, University of Ottawa Heart Institute, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Canada
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Individual variations in platelet reactivity towards ADP, epinephrine, collagen and nitric oxide, and the association to arterial function in young, healthy adults. Thromb Res 2018; 174:5-12. [PMID: 30543988 DOI: 10.1016/j.thromres.2018.12.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/13/2018] [Accepted: 12/05/2018] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Platelet aggregation and secretion can be induced by a large number of endogenous activators, such as collagen, adenosine diphosphate (ADP) and epinephrine. Conversely, the blood vessel endothelium constitutively release platelet inhibitors including nitric oxide (NO) and prostacyclin. NO and prostacyclin are also well-known vasodilators and contribute to alterations in local blood flow and systemic blood pressure. MATERIALS AND METHODS In this study we investigated individual variations in platelet reactivity and arterial functions including blood pressure and flow-mediated vasodilation (FMD) in 43 young, healthy individuals participating in the Lifestyle, Biomarkers and Atherosclerosis (LBA) study. Platelet aggregation and dense granule secretion were measured simultaneously by light transmission and luminescence. FMD was measured with ultrasound. RESULTS The platelet function assay showed inter-individual differences in platelet reactivity. Specifically, a sub-group of individuals had platelets with an increased response to low concentrations of ADP and epinephrine, but not collagen. When the NO-donor S-nitroso-N-acetyl-DL-penicillamine (SNAP) was combined with high doses of these platelet activators, the results indicated for sub-groups of NO-sensitive and NO-insensitive platelets. The individuals with NO-sensitive platelets in response to SNAP in combination with collagen had a higher capacity of FMD of the arteria brachialis. CONCLUSIONS Platelet reactivity towards ADP, epinephrine and NO differs between young, healthy individuals. Some individuals have a more effective response towards NO, both in the aspect of platelet inhibition ex vivo, as well as vasodilation in vivo.
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El Haouari M, Rosado JA. Phytochemical, Anti-diabetic and Cardiovascular Properties of Urtica dioica L. (Urticaceae): A Review. Mini Rev Med Chem 2018; 19:63-71. [DOI: 10.2174/1389557518666180924121528] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 07/17/2018] [Accepted: 07/20/2018] [Indexed: 12/26/2022]
Abstract
Type 2 diabetes mellitus and cardiovascular diseases (CVD) have become the main cause of morbidity and death worldwide. In addition, current anti-diabetic and cardiovascular therapy is based on conventional drugs that have limited effectiveness and adverse side effects. In this regard, the role of medicinal herbs as a complementary or an alternative medicine is of great interest. Urtica dioica L. (Urticaceae), which is the focus of this review, has been widely used in traditional medicine to treat a variety of ailments, including, diabetes, hypertension and prostate cancer. The aim of this article is to review current knowledge related to the anti-diabetic and cardiovascular properties of U. dioica, with particular emphasis on the bioactive compounds, the plant parts used, and the action mechanism behind lowering blood glucose level and reducing risk of CVD. We also discuss the chemical composition and toxicological properties of the plant. From this review, it was suggested that the anti-diabetic and the cardiovascular effects of U. dioica are attributed to different classes of compounds, such as polyphenols, triterpens, sterols, flavonoids, and lectin which reduce the blood glucose level and the risk of CVD by their antihypertensive, antioxidant and anti-inflammatory properties and/or by interfering with different cellular signalization pathways, including increase of NO, inhibition of α-amylase and α-glycosidase, modulation of GLUT4 and protection of pancreatic β-cells, among others. The identification of the plant constituents and the understanding of their exact action mechanisms are necessary to prove the efficacy of the plant and develop it as pharmacological drug.
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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
| | - Juan A. Rosado
- Department of Physiology (Cell Physiology Research Group), University of Extremadura, 10003-Caceres, Spain
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Bangalore S, Shah R, Pappadopulos E, Deshpande CG, Shelbaya A, Prieto R, Stephens J, McIntyre RS. Cardiovascular hazards of insufficient treatment of depression among patients with known cardiovascular disease: a propensity score adjusted analysis. EUROPEAN HEART JOURNAL. QUALITY OF CARE & CLINICAL OUTCOMES 2018; 4:258-266. [DOI: 10.1093/ehjqcco/qcy023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/06/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Sripal Bangalore
- Cardiovascular Outcomes Group, Leon H. Charney Division of Cardiology, New York University School of Medicine, 550 First Avenue, SKI 9R/109, New York, NY, USA
| | - Ruchitbhai Shah
- Pharmerit International, LP, 4350 East West Hwy, Suite #1110, Bethesda, MD, USA
| | | | - Chinmay G Deshpande
- Pharmerit International, LP, 4350 East West Hwy, Suite #1110, Bethesda, MD, USA
| | - Ahmed Shelbaya
- Pfizer Inc., 235 E 42nd St, New York, NY, USA
- Mailman School of Public Health, Columbia University, 722 W 168th St, New York, NY, USA
| | - Rita Prieto
- Pfizer GEP, S.L.U., AVENIDA DE EUROPA (PQ EMP LA MORALEJA), 20 - B, ALCOBENDAS, MADRID, Spain
| | - Jennifer Stephens
- Pharmerit International, LP, 4350 East West Hwy, Suite #1110, Bethesda, MD, USA
| | - Roger S McIntyre
- MDPU, UHN University of Toronto, 399 Bathurst Street, MP 9-325, Toronto, Ontario, Canada
- Brain and Cognition Discovery Foundation, University Health Network, 399 Bathurst Street, MP 9-325, Toronto, Ontario, Canada
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Platelets release pathogenic serotonin and return to circulation after immune complex-mediated sequestration. Proc Natl Acad Sci U S A 2018; 115:E1550-E1559. [PMID: 29386381 DOI: 10.1073/pnas.1720553115] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
There is a growing appreciation for the contribution of platelets to immunity; however, our knowledge mostly relies on platelet functions associated with vascular injury and the prevention of bleeding. Circulating immune complexes (ICs) contribute to both chronic and acute inflammation in a multitude of clinical conditions. Herein, we scrutinized platelet responses to systemic ICs in the absence of tissue and endothelial wall injury. Platelet activation by circulating ICs through a mechanism requiring expression of platelet Fcγ receptor IIA resulted in the induction of systemic shock. IC-driven shock was dependent on release of serotonin from platelet-dense granules secondary to platelet outside-in signaling by αIIbβ3 and its ligand fibrinogen. While activated platelets sequestered in the lungs and leaky vasculature of the blood-brain barrier, platelets also sequestered in the absence of shock in mice lacking peripheral serotonin. Unexpectedly, platelets returned to the blood circulation with emptied granules and were thereby ineffective at promoting subsequent systemic shock, although they still underwent sequestration. We propose that in response to circulating ICs, platelets are a crucial mediator of the inflammatory response highly relevant to sepsis, viremia, and anaphylaxis. In addition, platelets recirculate after degranulation and sequestration, demonstrating that in adaptive immunity implicating antibody responses, activated platelets are longer lived than anticipated and may explain platelet count fluctuations in IC-driven diseases.
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