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Coadă CA, Lupu M, Florea I, Di Constanzo S, Coluccelli S, Şimon I. Association of Glycoprotein IIIa PlA1/A2 Polymorphism with Risk of Stroke: Updated Meta-Analysis. Curr Issues Mol Biol 2024; 46:5364-5378. [PMID: 38920993 PMCID: PMC11201703 DOI: 10.3390/cimb46060321] [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: 05/06/2024] [Revised: 05/24/2024] [Accepted: 05/26/2024] [Indexed: 06/27/2024] Open
Abstract
Cardiovascular diseases are the main cause of death in the world, with ischemic heart disease (i.e., myocardial infarction) and cerebrovascular disease (i.e., stroke) taking the highest toll. Advances in diagnosis and treatment have led to a significant alleviation of ischemic complications, specifically in the realm of pharmacotherapy and interventional devices, while pharmacogenomics has yet to be fully leveraged to improve the burden of disease. Atherothrombotic events might occur earlier or respond worse to treatment in patients with genetic variants of GP IIb/IIIa. Therefore, we aimed to quantitate the involvement of the PlA2 variant in the risk of cerebral stroke events. A systematic search and meta-analysis were performed by pooling the risks of individual studies. A total of 31 studies comprising 5985 stroke patients and 7886 controls were analyzed. A meta-analysis of four studies on hemorrhagic stroke patients showed no association with the PIA2 rs5918(C) polymorphism in both fixed-effect (OR = 0.90 95%CI [0.71; 1.14]; p = 0.398) and random-effect models (OR = 0.86 95%CI [0.62; 1.20]; p-value = 0.386). The power of this analysis was below <30%, indicating a limited ability to detect a true effect. An analysis of the 28 studies on ischemic stroke revealed a significant association with the PIA2 rs5918(C) allele in both fixed-effect (OR = 1.16 95%CI [1.06; 1.27]; p = 0.001) and random-effect models (OR = 1.20 95%CI [1.04; 1.38]; p-value = 0.012), with a power of >80%. The PIA2 allele was associated with an increased risk of ischemic stroke. No association was found with hemorrhagic stroke, most likely due to the small number of available studies, which resulted in a lack of power.
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Affiliation(s)
- Camelia Alexandra Coadă
- Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, 400012 Cluj-Napoca, Romania; (C.A.C.); (I.F.)
| | - Mihai Lupu
- Morpho-Functional Sciences Department, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, 400012 Cluj-Napoca, Romania
| | - Iulia Florea
- Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, 400012 Cluj-Napoca, Romania; (C.A.C.); (I.F.)
| | - Stella Di Constanzo
- Division of Oncologic Gynecology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy;
| | - Sara Coluccelli
- Solid Tumor Molecular Pathology Laboratory, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy;
| | - Ioan Şimon
- Department of Surgery, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, 400012 Cluj-Napoca, Romania;
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Tsamadias V, Vlachadis N, Demeridou S, Kouskouni E, Creatsas G, Vlahos NF, Economou E. Platelet Glycoprotein Receptor Ia-C807T and IIIa-PlA1/PlA2 Genetic Polymorphisms Are Associated With Enhanced Platelet Function in Women With Recurrent Miscarriages. Cureus 2023; 15:e47832. [PMID: 37899902 PMCID: PMC10611447 DOI: 10.7759/cureus.47832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2023] [Indexed: 10/31/2023] Open
Abstract
INTRODUCTION Thrombophilic genetic polymorphisms of the platelet glycoproteins Ia (GpIa) and IIIa (GpIIIa) have been associated with an increased risk of recurrent miscarriages. The aim of this study was to investigate the association of genetic polymorphisms GpIa-C807T and GpIIIa-T1565C-PlA1/PlA2 with platelet function in women with unexplained spontaneous recurrent miscarriages. METHODS This cross-sectional study comprised 196 unrelated nulliparous Greek women with a history of unexplained recurrent miscarriages. Patients were genotyped for the presence of the GpIa-C807T (rs1126643) and GpIIIa-T1565C-PlA1/PlA2 (rs5918) genetic polymorphisms by pyrosequencing, and the collagen/epinephrine closure time (COL/EPI CT) of the subjects was assessed using the platelet function analyzer (PFA)-100. RESULTS In the total population of women with recurrent miscarriages, the COL/EPI CT ranged from 70 to 160 seconds (median: 122 seconds, interquartile range (IQR): 102.3-138 seconds). In comparison with the double homozygotes CC/PlA1PlA1 that had the most prolonged CT (mean: 131.9 ± 17.5 seconds), the COL/EPI CT was statistically significantly shorter for the GpIa-807T single carriers (mean: 120.3 ± 20.9 seconds) (p=0.011) (absolute difference: 11.6 seconds, 95% confidence interval (CI): 21.2 to -2.0 seconds; relative difference: -9%, 95% CI: -16% to -2%), and the GpIIIa-PlA2 single carriers also displayed a trend for shorter COL/EPI CT (mean: 121.3 ± 23.7 seconds) (p=0.141) (absolute difference: -10.6 seconds, relative difference: -8%), whereas the combined carriers of the GpIa-807T and the GpIIIa-PlA2 alleles exhibited the shortest COL/EPI CT (mean: 104.1 ± 19.7 seconds) (absolute difference: -27.7 seconds, 95% CI: -39.1 to -16.3 seconds; relative difference: -21%, 95% CI: -30% to -12%) (p<0.001). In comparing genotype frequencies in the lower half with those in the upper half of the COL/EPI CT range, the GpIa-807T and the GpIIIa-PlA2 single carriers were associated with higher odds of COL/EPI CT < 122 seconds (odds ratio (OR)=3.4, 95% CI: 1.5 to 7.5, p=0.002, and OR=2.6, 95% CI: 1.0 to 7.2, p=0.053, respectively). The association was strongest for the combined carriers with OR of 15.0 (95% CI: 5.2 to 43.2, p<0.001) for COL/EPI CT below the median and OR of 35.5 (95% CI: 4.4 to 284.5, p<0.001) for COL/EPI CT < 100 seconds. CONCLUSION The GpIa-C807T and GpIIIa-PlA1/PlA2 polymorphisms and more pronouncedly the combined carriers of the risk variants are associated with enhanced platelet reactivity expressed via shorter COL/EPI CT. These findings provide further evidence for the role of platelet-associated genetic thrombophilia in the pathogenesis of recurrent miscarriages and promote the analysis of platelet function as a diagnostic tool in the evaluation of this disorder.
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Affiliation(s)
- Vassilios Tsamadias
- Clinical Laboratory for Therapeutic Individualization, Second Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens Medical School, Aretaieio University Hospital, Athens, GRC
| | - Nikolaos Vlachadis
- Clinical Laboratory for Therapeutic Individualization, Second Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens Medical School, Aretaieio University Hospital, Athens, GRC
| | - Styliani Demeridou
- Department of Biopathology - Microbiology and Biochemistry, National and Kapodistrian University of Athens Medical School, Aretaieio University Hospital, Athens, GRC
| | - Evaggelia Kouskouni
- Department of Biopathology - Microbiology and Biochemistry, National and Kapodistrian University of Athens Medical School, Aretaieio University Hospital, Athens, GRC
| | - George Creatsas
- Second Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens Medical School, Aretaieio University Hospital, Athens, GRC
| | - Nikolaos F Vlahos
- Second Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens Medical School, Aretaieio University Hospital, Athens, GRC
| | - Emmanuel Economou
- Clinical Laboratory for Therapeutic Individualization, Second Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens Medical School, Aretaieio University Hospital, Athens, GRC
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Gao D, Sun CW, Woodley AB, Dong JF. Clot Retraction and Its Correlation with the Function of Platelet Integrin α IIbβ 3. Biomedicines 2023; 11:2345. [PMID: 37760786 PMCID: PMC10525596 DOI: 10.3390/biomedicines11092345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/11/2023] [Accepted: 08/12/2023] [Indexed: 09/29/2023] Open
Abstract
Clot retraction results from retractions of platelet filopodia and fibrin fibers and requires the functional platelet αIIbβ3 integrin. This assay is widely used to test the functions of platelets and fibrinogen as well as the efficacy of fibrinolysis. Changes in clot retraction have been found in a variety of hemostatic abnormalities and, more recently, in arterial thrombosis. Despite its broad clinical use and low cost, many aspects of clot retraction are poorly understood. In the present study, we performed two clinical standard clot retraction assays using whole-blood and platelet-rich plasma (PRP) samples to determine how clot retraction correlates with platelet counts and mean volume, the density of αIIbβ3 integrin and PLA genotypes, and plasma fibrinogen levels. We found that clot retraction was affected by platelet counts, but not mean platelet volume. It correlated with the surface density of the integrin αIibβ3, but not PLA genotypes. These results indicate that clot retraction measures a unique aspect of platelet function and can serve as an additional means to detect functional changes in platelets.
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Affiliation(s)
- Daniel Gao
- Bloodworks Research Institute, 1551 Southlake Ave. E., Seattle, WA 98102, USA;
- Department of Chemistry, Pomona College, Claremont, CA 91711, USA
| | - Caroline W. Sun
- Section of Cardiovascular Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Angela B. Woodley
- Section of Cardiovascular Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jing-fei Dong
- Bloodworks Research Institute, 1551 Southlake Ave. E., Seattle, WA 98102, USA;
- Division of Hematology, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA
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Qureshi K, Farooq MU, Gorelick PB. Genotype-guided dual antiplatelet therapy in cerebrovascular disease: assessing the risk and benefits for ethnic populations. Expert Rev Cardiovasc Ther 2023; 21:621-630. [PMID: 37551687 DOI: 10.1080/14779072.2023.2245754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 07/19/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
INTRODUCTION Cerebrovascular disease is a leading cause of morbidity and mortality in the world and antiplatelet therapy is a main pharmacologic means of secondary prevention. Clinical information has accumulated about benefit of dual antiplatelet therapy in certain clinical scenarios, genetic causes of antiplatelet resistance and its effect on clinical outcomes, and ethnic and geographic distributions of genetic polymorphisms. AREAS COVERED This review covers literature related to the pharmacogenomics of antiplatelet agents with a focus on ethnic variability, antiplatelet resistance, and dual antiplatelet therapy in cerebrovascular disease. EXPERT OPINION Selecting patients for dual antiplatelet therapy and specific agents require consideration of multiple factors. Ethnic factors should be considered in certain circumstances, but additional research is needed to determine the generalizability of the findings.
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Affiliation(s)
- Kasim Qureshi
- Department of Neurology, Trinity Health, Saint Mary's, Grand Rapids, MI, United States
- Department of Neurology, Michigan State University College of Human Medicine, Grand Rapids, MI, United States
| | - Muhammad U Farooq
- Department of Neurology, Trinity Health, Saint Mary's, Grand Rapids, MI, United States
- Department of Neurology, Michigan State University College of Human Medicine, Grand Rapids, MI, United States
| | - Philip B Gorelick
- Department of Neurology, Trinity Health, Saint Mary's, Grand Rapids, MI, United States
- Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
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Influence of genetic polymorphisms in P2Y12 receptor signaling pathway on antiplatelet response to clopidogrel in coronary heart disease. BMC Cardiovasc Disord 2022; 22:575. [PMID: 36581799 PMCID: PMC9801627 DOI: 10.1186/s12872-022-02988-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 08/18/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUNDS Remarkable interindividual variability in clopidogrel response is observed, genetic polymorphisms in P2RY12 and its signal pathway is supposed to affect clopidogrel response in CHD patients. METHODS 539 CHD patients treated with clopidogrel were recruited. The platelet reaction index (PRI) indicated by VASP-P level were detected in 12-24 h after clopidogrel loading dose or within 5-7 days after initiation of maintain dose clopidogrel. A total of 13 SNPs in relevant genes were genotyped in sample A (239 CHD patients). The SNPs which have significant differences in PRI will be validated in another sample (sample B, 300 CHD patients). RESULTS CYP2C19*2 increased the risk of clopidogrel resistance significantly. When CYP2C19*2 and CYP2C19*3 were considered, CYP2C19 loss of function (LOF) alleles were associated with more obviously increased the risk of clopidogrel resistance; P2RY12 rs6809699C > A polymorphism was also associated with increased risk of clopidogrel resistance (AA vs CC: P = 0.0398). This difference still existed after stratification by CYP2C19 genotypes. It was also validated in sample B. The association was also still significant even in the case of stratification by CYP2C19 genotypes in all patients (sample A + B). CONCLUSION Our data suggest that P2RY12 rs6809699 is associated with clopidogrel resistance in CHD patients. Meanwhile, the rs6809699 AA genotype can increase on-treatment platelet activity independent of CYP2C19 LOF polymorphisms.
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Wei S, Cao Y, Liu D, Zhang D. Cerebral infarction after cardiac surgery. IBRAIN 2022; 8:190-198. [PMID: 37786885 PMCID: PMC10528768 DOI: 10.1002/ibra.12046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 05/04/2022] [Accepted: 05/08/2022] [Indexed: 10/04/2023]
Abstract
Cerebral infarction, a common central nervous system complication after adult cardiac surgery, is one of the main factors leading to the poor prognosis of cardiac surgery patients besides cardiac insufficiency. However, there is currently no effective treatment for cerebral infarction. Therefore, early prevention and diagnosis of postoperative cerebral infarction are particularly important. There are many factors and mechanisms during and after cardiac surgery that play an important role in the occurrence of postoperative cerebral infarction, such as intraoperative embolism, systemic inflammatory response syndrome, atrial fibrillation, temperature regulation, blood pressure control, use of postoperative blood products, and so forth. The mechanism by which most risk factors act on the human body, leading to postoperative cerebral infarction, is not well understood, and further research is needed. Therefore, this paper aims to summarize and explain the relevant risk factors, mechanisms, clinical signs, imaging characteristics, and early diagnosis methods of cerebral infarction complications after cardiac surgery, and provides useful data for the establishment of related diagnosis and treatment standards.
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Affiliation(s)
- Shan Wei
- Department of Cardiovascular SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Yi‐Ran Cao
- Department of Cardiovascular SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Da‐Xing Liu
- Department of Cardiovascular SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
| | - Deng‐Shen Zhang
- Department of Cardiovascular SurgeryAffiliated Hospital of Zunyi Medical UniversityZunyiGuizhouChina
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Rezaei Dezaki Z, Bagheri R, Pourgheysari B. Association between fibrinogen receptor (Glycoprotein IIb) polymorphism and the risk of venous thromboembolism: a systematic review. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2019. [DOI: 10.1186/s43042-019-0042-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The fibrinogen receptor is an integrin on the platelet surface and is shaped from two types of glycoprotein (GP) subunits, GPIIb and GPIIIa. Membrane glycoprotein IIb/IIIa plays an important role in platelet function. The gene encoding the glycoprotein IIIa shows a common polymorphism, PLA2 that increases the binding of the receptor to fibrinogen and enhances the platelet aggregation. The clinical impact of PLA2 polymorphism has been studied in some diseases, but the definition of its exact role on venous thromboembolism complications has been challenging. The present systematic review aimed to clarify the association of PLA2 polymorphism and venous thromboembolism.
Main text
In this study, Electronic databases including PubMed, Embase, Scopus, Web of Science, and Cochrane Library were searched. All the assessed studies focused on the relationship between PLA2 polymorphism and venous thromboembolism. Five studies were eligible for systematic review. One study revealed a significant correlation between PLA2 polymorphism and venous thromboembolism. PLA2 polymorphism was associated with deep vein thrombosis in one study and pulmonary thromboembolism in another one.
Conclusion
The published data supported the hypothesis that having the PLA2 polymorphism of GPIIIa may be a risk factor for venous thromboembolism, but the association cannot be concluded; it needs more clinical investigation.
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Abstract
Pharmacogenetics is an emerging area of medicine, and more work is needed to fully integrate it into a clinical setting for the benefit of patients. Genetic markers can influence the action of many drugs, including those that prevent and treat cardiovascular conditions. Genotyping is not yet commonplace, but guidelines are being put in place to help practitioners determine the effect a genetic marker may have on certain drugs. With advancements in genetic technology and falling costs, genotyping could be available to all patients via a simple saliva test. This would be a cost-effective way for practitioners to determine the most effective treatment for individuals, reducing "trial and error," adverse effects, and rehospitalization rates and increasing patient compliance. Cardiovascular diseases are the leading causes of death worldwide, so using the most effective medication to treat or prevent them is of utmost importance in reducing incidence and mortality.
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A novel ultrasonic method for evaluation of blood clotting parameters. J Med Ultrason (2001) 2018. [PMID: 29536280 DOI: 10.1007/s10396-018-0874-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
PURPOSE For long time, blood clot retraction was measured only by thromboelastographic or platelet contractile force measurement techniques. The purpose of the present study was development of a novel ultrasonic method based on simultaneous monitoring of variations in the ultrasound velocity and the frequency spectrum of the signal propagating in clotting blood and its application for automatic evaluation of blood clotting parameters. METHODS Simultaneous measurement of ultrasound velocity and variations in the frequency spectrum of wideband ultrasonic signals in clotting blood samples was performed. All measurements were performed in pulse-echo mode. Standard clinical data were obtained using routine clinical laboratory methods. RESULTS The amplitudes of ultrasonic signals during native blood coagulation varied up to ten times for different frequencies. The measurement results of the start and duration of blood clot retraction differed between patient samples: different components of the blood coagulation system had significant impact on the blood clot retraction process. CONCLUSIONS Our results showed that during blood clotting, the ultrasound velocity and variations in frequency spectrum should be used simultaneously to determine the beginning and duration of blood clot retraction. Our results also showed that blood clot retraction is controlled by the activity of factor XIII.
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Yi X, Lin J, Wang Y, Zhou J, Zhou Q. Interaction among CYP2C8, GPIIIa and P2Y12 variants increase susceptibility to ischemic stroke in Chinese population. Oncotarget 2017; 8:70811-70820. [PMID: 29050321 PMCID: PMC5642596 DOI: 10.18632/oncotarget.19991] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 07/13/2017] [Indexed: 01/11/2023] Open
Abstract
PURPOSE Genetic variants in cytochrome P450 (CYP), platelet membrane receptor (P2Y12, P2Y1), and glycoprotein IIIa (GPIIIa) genes are associated with the efficacy of clopidogrel and adverse clinical events on ischemic stroke (IS) patients. However, few studies have assessed whether gene-gene interactions among these genes influence the risk of IS. The aim of the present study was to investigate the association of fifteen variants with IS and to determine whether these gene-gene interactions increase the risk of IS. METHODS Fifteen variants in CYP3A4, CYP3A5, CYP2C8, CYP2C9, CYP2C19, P2Y12, P2Y1 and GPIIIa genes were examined using mass spectrometry methods in 396 patients with IS and 378 controls. Gene-gene interactions were analyzed using generalized multifactor dimensionality reduction (GMDR) methods. RESULTS Single-gene variant analysis showed no significant differences in the genotype distributions of the fifteen variants between IS patients and controls using the single-locus analytical approach. However, GMDR analysis showed a significant gene-gene interaction among rs17110453A>C, rs2317676A>G, and rs16863323C>T, which scored 10 for cross-validation consistency and 9 for the sign test (P = 0.016). Logistic regression analysis showed that high-risk interactions among rs17110453A>C, rs2317676A>G, and rs16863323C>T were independent risk factor for IS after adjusting for age, hypertension, diabetes mellitus, and hemoglobin A1C (OR=2.24, 95% CI: 1.17-5.62, P=0.005). CONCLUSIONS The rs17110453A>C, rs2317676A>G, and rs16863323C>T three-loci interaction may confer a higher risk for IS. The combinatorial analysis used in this study may be helpful to elucidate complex genetic risk factors for IS.
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Affiliation(s)
- Xingyang Yi
- Department of Neurology, People's Hospital of Deyang City, Deyang 618000, Sichuan, China
| | - Jing Lin
- Department of Neurology, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325200, Zhejiang, China
| | - Yanfen Wang
- Department of Neurology, People's Hospital of Deyang City, Deyang 618000, Sichuan, China
| | - Ju Zhou
- Department of Neurology, People's Hospital of Deyang City, Deyang 618000, Sichuan, China
| | - Qiang Zhou
- Department of Neurology, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325200, Zhejiang, China
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Vlachadis N, Tsamadias V, Vrachnis N, Kaparos G, Vitoratos N, Kouskouni E, Economou E. Associations of combined polymorphisms of the platelet membrane glycoproteins Ia and IIIa and the platelet-endothelial cell adhesion molecule-1 and P-Selectin genes with IVF implantation failures. J OBSTET GYNAECOL 2017; 37:363-369. [PMID: 28388872 DOI: 10.1080/01443615.2016.1256978] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The aim of the study was to investigate the combined impact of the genetic heterogeneity of the glycoproteins Ia (GpIa) and IIIa (GpIIIa) and the platelet-endothelial cell adhesion molecule-1 (PECAM-1) and P-Selectin genes on IVF embryo transfer implantation failures (IVF-ET failures). Sixty nulligravida women with previous IVF-ET failures and 60 fertile controls were genotyped for the GpIa-C807T, GpIIIa-PlA1/PA2, PECAM-1-C373G (Leu125Val) and P-Selectin-A37674C (Thr715Pro) polymorphisms by pyrosequencing. Compared with wild-type combined homozygotes, carriers of combinations of risk alleles in two gene loci were at significantly increased risk for IVF-ET failure, whereas carriers of the combination of GpIa-807T, GpIIIa-PlA2 and PECAM-1-373G alleles had OR = 52.50 (95%CI: 4.05-680.95, p < .001). The area under the receiver-operating characteristic curve (AUC) based on the number of polymorphisms and the number of risk alleles per subject was 75.4% (95%CI: 66.7%-82.8%, p < .001) and 72.5% (95%CI: 63.6%-80.3%, p < .001), respectively. The OR per polymorphism and risk allele increase was 4.26 (95%CI: 2.15-8.41, p < .001) and 2.85 (95%CI: 1.71-4.76, p < .001), respectively. The above associations were more robust among younger women. The combined analysis of these polymorphisms revealed strong association of combined carriers with IVF-ET failures especially for younger women and provided a genetic risk score with good diagnostic accuracy in the prediction of IVF-ET failures.
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Affiliation(s)
- Nikolaos Vlachadis
- a Clinical Laboratory of Therapeutic Individualization, Second Department of Obstetrics and Gynecology , National and Kapodistrian University of Athens, School of Medicine, Aretaieio Hospital , Athens , Greece
| | - Vasileios Tsamadias
- a Clinical Laboratory of Therapeutic Individualization, Second Department of Obstetrics and Gynecology , National and Kapodistrian University of Athens, School of Medicine, Aretaieio Hospital , Athens , Greece
| | - Nikolaos Vrachnis
- b Second Department of Obstetrics and Gynecology , National and Kapodistrian University of Athens, School of Medicine, Aretaieio Hospital , Athens , Greece
| | - Georgios Kaparos
- c Department of Microbiology and Biochemistry , National and Kapodistrian University of Athens, School of Medicine, Aretaieio Hospital , Athens , Greece
| | - Nikolaos Vitoratos
- b Second Department of Obstetrics and Gynecology , National and Kapodistrian University of Athens, School of Medicine, Aretaieio Hospital , Athens , Greece
| | - Evaggelia Kouskouni
- a Clinical Laboratory of Therapeutic Individualization, Second Department of Obstetrics and Gynecology , National and Kapodistrian University of Athens, School of Medicine, Aretaieio Hospital , Athens , Greece.,c Department of Microbiology and Biochemistry , National and Kapodistrian University of Athens, School of Medicine, Aretaieio Hospital , Athens , Greece
| | - Emmanuel Economou
- a Clinical Laboratory of Therapeutic Individualization, Second Department of Obstetrics and Gynecology , National and Kapodistrian University of Athens, School of Medicine, Aretaieio Hospital , Athens , Greece
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Fawzy MS, Toraih EA, Aly NM, Fakhr-Eldeen A, Badran DI, Hussein MH. Atherosclerotic and thrombotic genetic and environmental determinants in Egyptian coronary artery disease patients: a pilot study. BMC Cardiovasc Disord 2017; 17:26. [PMID: 28086795 PMCID: PMC5237236 DOI: 10.1186/s12872-016-0456-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 12/22/2016] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Coronary artery disease (CAD) is the leading cause of morbidity and mortality worldwide. Multiple genetic variants in combination with various environmental risk factors have been implicated. This study aimed to investigate the association of twelve thrombotic and atherosclerotic gene variants in combination with other environmental risk factors with CAD risk in a preliminary sample of Egyptian CAD patients. METHODS Twenty three consecutive CAD patients undergoing diagnostic coronary angiography and 34 unrelated controls, have been enrolled in the study. Genotyping was based on polymerase chain reaction and reverse multiplex hybridization. Five genetic association models were tested. Data distribution and variance homogeneity have been checked by Shapiro-Wilk test and Levene test, respectively; then the appropriate comparison test was applied. Spearman's rank correlation coefficient was used for correlation analysis and logistic regression has been performed to adjust for significant risk factors. Clustering the study participants according to gene-gene and gene-environment interaction has been done by Detrended Correspondence Analysis (DCA). RESULTS The univariate analysis indicated that the five variants; rs1800595 (FVR2; factor 5), rs1801133 (MTHFR; 5,10-methylenetetrahydrofolate reductase), rs5918 (HPA-1; human platelet antigen 1), rs1799752 (ACE; angiotensin-converting enzyme), and rs7412 and rs429358 (ApoE; apolipoprotein E) were significantly associated with CAD susceptibility under different genetic models. Multivariate analysis revealed clustering of the study population into three patient groups (P) and one control group. FVR2 was the most variant associated with CAD patients, combined with the factor V Leiden (FVL) variant in P1 cluster and with both ACE and MTHFR 667C > T in P2. Whereas, P3 was mostly affected by both MTHFR 667C > T and FXIII (factor 13) V89L mutations. When combined with traditional risk factors, P1 was mostly affected by dyslipidemia, smoking and hypertension, while P2 was mostly affected by their fasting blood sugar levels and ApoE variant. CONCLUSIONS Taken together, these preliminary results could have predictive value to be applied in refining a risk profile for our CAD patients, in order to implement early preventive interventions including specific antithrombotic therapy. Further large scale and follow-up studies are highly recommended to confirm the study findings.
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Affiliation(s)
- Manal S Fawzy
- Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.
| | - Eman A Toraih
- Department of Histology and Cell Biology (Genetics Unit), Faculty of Medicine, Suez Canal University, Ismailia, Egypt.
| | - Nagwa M Aly
- Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Abeer Fakhr-Eldeen
- Clinical Pathology Department, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Dahlia I Badran
- Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
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Todinova S, Komsa-Penkova R, Krumova S, Taneva SG, Golemanov G, Georgieva G, Tonchev P, Tsankov B, Beshev L, Balashev K, Andreeva TD. PlA2 Polymorphism in Glycoprotein IIb/IIIa Modulates the Morphology and Nanomechanics of Platelets. Clin Appl Thromb Hemost 2017; 23:951-960. [PMID: 28081621 DOI: 10.1177/1076029616687847] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Glycoprotein IIb/IIIa (GPIIb/IIIa) is the most abundant platelet surface receptor for fibrinogen and von Willebrand factor. Polymorphism PlA1/A2 in the gene of GPIIb/IIIa is among the risk factors for the development of arterial and venous thrombosis. The aim of this study is to evaluate the effect of the carriage of PlA1/A2 on the size, topographic features, and membrane stiffness of platelets from healthy controls and patients with deep venous thrombosis (DVT). Atomic force microscopy (AFM) imaging and nanoindentation (force-distance curves) were applied to investigate the morphological and nanomechanical properties (Young's modulus) of platelets immobilized on glass surface. The surface roughness ( Ra) and height ( h) of platelets from patients with DVT, carriers of mutant allele PlA2 ( Ra = 30.2 ± 6 nm; h = 766 ± 182 nm) and noncarriers ( Ra = 28.6 ± 6 nm; h = 865 ± 290 nm), were lower than those of healthy carriers of allele PlA2 ( Ra = 48.1 ± 12 nm; h = 1072 ± 338 nm) and healthy noncarriers ( Ra = 49.7 ± 14 nm; h = 1021 ± 433 nm), respectively. Platelets isolated from patients with DVT, both carriers and noncarriers, exhibit much higher degree of stiffness at the stage of spreading ( E = 327 ± 85 kPa and 341 ± 102 kPa, respectively) compared to healthy noncarriers ( E = 198 ± 50 kPa). In addition, more pronounced level of platelet activation was found in polymorphism carriers. In conclusion, the carriage of PlA2 allele modulates the activation state, morphology, and membrane elasticity of platelets.
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Affiliation(s)
- Svetla Todinova
- 1 Department of Biomacromolecules and Biomolecular Interactions, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | | | - Sashka Krumova
- 1 Department of Biomacromolecules and Biomolecular Interactions, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Stefka G Taneva
- 1 Department of Biomacromolecules and Biomolecular Interactions, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Georgy Golemanov
- 2 Department of Biochemistry, Medical University, Pleven, Bulgaria
| | - Galia Georgieva
- 2 Department of Biochemistry, Medical University, Pleven, Bulgaria
| | - Pencho Tonchev
- 3 Department of Surgery, University Hospital, Pleven, Bulgaria
| | - Boris Tsankov
- 3 Department of Surgery, University Hospital, Pleven, Bulgaria
| | - Lyubomir Beshev
- 3 Department of Surgery, University Hospital, Pleven, Bulgaria
| | - Konstantin Balashev
- 4 Department of Physical Chemistry, Faculty of Chemistry and Pharmacy, Sofia University, Sofia, Bulgaria
| | - Tonya D Andreeva
- 1 Department of Biomacromolecules and Biomolecular Interactions, Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia, Bulgaria
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Identification of ITGA2B and ITGB3 Single-Nucleotide Polymorphisms and Their Influences on the Platelet Function. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5675084. [PMID: 27965976 PMCID: PMC5124636 DOI: 10.1155/2016/5675084] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 04/18/2016] [Indexed: 12/20/2022]
Abstract
The aim of the study was to investigate ITGA2B and ITGB3 genetic polymorphisms and to evaluate the variability in the platelet function in healthy Chinese subjects. The genetic sequence of the entire coding region of the ITGA2B and ITGB3 genes was investigated. Adenosine diphosphate-induced platelet aggregation, glycoprotein IIb/IIIa content, bleeding time, and coagulation indexes were detected. Thirteen variants in the ITGA2B locus and 29 variants in the ITGB3 locus were identified in the Chinese population. The rs1009312 and rs2015049 were associated with the mean platelet volume. The rs70940817 was significantly correlated with the prothrombin time. The rs70940817 and rs112188890 were related with the activated partial thromboplastin time, and ITGB3 rs4642 was correlated with the thrombin time and fibrinogen. The minor alleles of rs56197296 and rs5919 were associated with decreased ADP-induced platelet aggregation, and rs55827077 was related with decreased GPIIb/IIIa per platelet. The rs1009312, rs2015049, rs3760364, rs567581451, rs7208170, and rs117052258 were related with bleeding time. Further studies are needed to explore the clinical importance of ITGA2B and ITGB3 SNPs in the platelet function.
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15
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Liu H, Wang Y, Zheng J, Li G, Chen T, Lei J, Mao Y, Wang J, Liu W, Zhao G, Tacey M, Yan B. Platelet glycoprotein gene Ia C807T, HPA-3, and Ibα VNTR polymorphisms are associated with increased ischemic stroke risk: Evidence from a comprehensive meta-analysis. Int J Stroke 2016; 12:46-70. [PMID: 28004990 DOI: 10.1177/1747493016672085] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background/aims Platelet glycoproteins play a crucial role in the initial stage of thrombus formation and may contribute to the pathophysiology of atherosclerosis. Polymorphisms in glycoprotein genes alter the function of the protein, possibly leading to increased risk of ischemic stroke. However, previous genetic association studies that examined the relationship between glycoprotein genes polymorphisms and ischemic stroke have yielded inconsistent results. This study aimed to evaluate the association between glycoprotein genes and ischemic stroke by the application of meta-analysis. Methods Relevant studies were identified by an extensive search through databases. The quality of included studies was assessed independently using the Newcastle–Ottawa Scale. Allele and genotype frequencies for each included study were extracted. The odds ratio (OR) with 95% confidence interval (95%CI) was calculated using a random-effects or fixed-effects model. Q statistic was used to evaluate homogeneity, and a meta-regression model was used to explore the study-level variables and to describe the heterogeneity in included studies. Egger’s test and funnel plot were used to assess publication bias. Results A total of 60 studies (9 polymorphisms) were included and identified in the current meta-analysis. The Newcastle–Ottawa Scale scores ranged from 7 to 9 except for two studies with Newcastle–Ottawa Scale scores of 6. The T allele or TT genotype of the glycoprotein Ia C807T polymorphism were associated with an increased susceptibility to ischemic stroke in combined population (807T allele: OR, 95%CI: 1.24, 1.03–1.50, p = 0.02) or Asian populations (807T allele: OR, 95%CI: 1.31, 1.10–1.54, p = 0.002 and 807TT genotype: OR, 95%CI: 1.53, 1.13–2.08, p = 0.006, respectively), and the Ser allele of HPA-3 was associated with increased risk of ischemic stroke in combined population or in Asians (OR, 95%CI: 1.21, 1.04–1.40, p = 0.01 or 1.54, 1.18–2.01, p = 0.001). Of note, the Ser/Ser genotype was more common in Asians (OR, 95%CI: 2.09, 1.40–3.13, p < 0.001). For glycoprotein Ibα variable number tandem repeat, only B allele showed a mild significant association with ischemic stroke risk in combined population or in Caucasians (OR, 95%CI: 2.17, 1.04–4.55, p = 0.04 or 1.79, 1.02–3.13, p = 0.04). There was no significant association between HPA-1, HPA-2, HPA-4, HPA-5, glycoprotein Ibα-5 T/C as well as Ia G873A polymorphisms and increased risk of ischemic stroke. Conclusions We found that glycoprotein Ia C807T T allele or the TT genotype, the Ser-allele of HPA-3 and B allele of glycoprotein Ibα variable number tandem repeat polymorphisms were associated with increased risk for ischemic stroke. Future studies with larger sample sizes will be necessary to confirm the results. In addition, analyses of ischemic stroke subtypes and gene–gene and gene–environment interactions are warranted.
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Affiliation(s)
- Hua Liu
- Department of Neurology, the Second Clinical Medical College of North Sichuan Medical College & Nanchong Central Hospital, Nanchong, P R China
- Department of Neurology, The First Affiliated Hospital, Kunming Medical University, Kunming, PR China
- Melbourne Brain Centre, Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia
| | - Yi Wang
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai, P R China
| | - Jian Zheng
- Department of Neurology, Xinqiao Hospital, the Third Military Medical University, Chongqing, PR China
| | - Guangming Li
- Department of Neurology, the Second Clinical Medical College of North Sichuan Medical College & Nanchong Central Hospital, Nanchong, P R China
| | - Tao Chen
- Department of Neurology, The First Affiliated Hospital, Kunming Medical University, Kunming, PR China
| | - Jianguo Lei
- Department of Neurology, the Fifth people's Hospital of Chengdu, North Sichuan Medical College, Chengdu, P R China
| | - Yiting Mao
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai, P R China
| | - Jun Wang
- Department of Neurology, the Fifth people's Hospital of Chengdu, North Sichuan Medical College, Chengdu, P R China
| | - Wei Liu
- Department of Neurology, the Second Clinical Medical College of North Sichuan Medical College & Nanchong Central Hospital, Nanchong, P R China
| | - Ge Zhao
- Department of Neurology, the Fifth people's Hospital of Chengdu, North Sichuan Medical College, Chengdu, P R China
| | - Mark Tacey
- Melbourne EpiCentre, Royal Melbourne Hospital and Department of Medicine, The University of Melbourne, Parkville, Victoria, Australia
| | - Bernard Yan
- Melbourne Brain Centre, Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia
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16
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Postula M, Janicki PK, Milanowski L, Pordzik J, Eyileten C, Karlinski M, Wylezol P, Solarska M, Czlonkowka A, Kurkowska-Jastrzebka I, Sugino S, Imamura Y, Mirowska-Guzel D. Association of frequent genetic variants in platelet activation pathway genes with large-vessel ischemic stroke in Polish population. Platelets 2016; 28:66-73. [DOI: 10.1080/09537104.2016.1203404] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Marek Postula
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland
- Perioperative Genomics Laboratory, Penn State University, College of Medicine, Hershey, PA, USA
| | - Piotr K. Janicki
- Perioperative Genomics Laboratory, Penn State University, College of Medicine, Hershey, PA, USA
| | - Lukasz Milanowski
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland
| | - Justyna Pordzik
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland
| | - Ceren Eyileten
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland
| | - Michal Karlinski
- 2nd Department of Neurology, Institute of Psychiatry and Neurology, Warsaw, Poland
| | - Pawel Wylezol
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland
| | - Marta Solarska
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland
| | - Anna Czlonkowka
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland
- 2nd Department of Neurology, Institute of Psychiatry and Neurology, Warsaw, Poland
| | | | - Shigekazu Sugino
- Perioperative Genomics Laboratory, Penn State University, College of Medicine, Hershey, PA, USA
| | - Yuka Imamura
- Genome Sciences Facility, Penn State University, College of Medicine, Hershey, PA, USA
| | - Dagmara Mirowska-Guzel
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland
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17
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Vlachadis N, Tsamadias V, Vrachnis N, Kaparos G, Vitoratos N, Kouskouni E, Economou E. Genetic heterogeneity of platelet glycoproteins Ia and IIIa and the risk of spontaneous miscarriages. J Matern Fetal Neonatal Med 2016; 30:1309-1313. [DOI: 10.1080/14767058.2016.1212330] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Pillois X, Nurden AT. Linkage disequilibrium amongst ITGA2B and ITGB3 gene variants in patients with Glanzmann thrombasthenia confirms that most disease-causing mutations are recent. Br J Haematol 2016; 175:686-695. [PMID: 27469266 DOI: 10.1111/bjh.14283] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 06/22/2016] [Indexed: 12/11/2022]
Abstract
We recently reported mutation analysis of the largest cohort of Glanzmann thrombasthenia (GT) patients so far examined. Sanger sequencing of coding regions, splice sites, upstream and downstream regions of the ITGA2B and ITGB3 genes identified 78 causal genetic variants (55 novel); 4 large deletions or duplications were also detected. We have now analysed the expression of non-causal gene polymorphisms in the sequenced regions of both genes in selected members of this cohort. We identified 10 mostly silent variants in ITGA2B and 37 in ITGB3; all were present in control donor databases. Three non-synonymous single nucleotide polymorphisms present were human platelet alloantigen (HPA) variants. A series of haplogroups, often including HPA-3b in ITGA2B, repeated with little variation across unrelated families of wide geographical origins and with different GT-causing mutations whether in ITGA2B or ITGB3. In contrast, a deleterious heterozygous c.1440-13_c.1440-1del in intron 14 of ITGA2B shared a common ITGA2B haplogroup composed of at least five gene polymorphisms and re-occurred in seven European families with no known family relationships. Our results highlight the value of gene polymorphism analysis in GT and are consistent with the bulk of disease-causing mutations in GT being of recent origin.
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Affiliation(s)
- Xavier Pillois
- Institut de Rhythmologie et de Modélisation Cardiaque, Plateforme Technologique d'Innovation Biomédicale, Hôpital Xavier Arnozan, Pessac, France.,Université de Bordeaux, INSERM U1034, Pessac, France
| | - Alan T Nurden
- Université de Bordeaux, INSERM U1034, Pessac, France
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19
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Milanowski L, Pordzik J, Janicki PK, Postula M. Common genetic variants in platelet surface receptors and its association with ischemic stroke. Pharmacogenomics 2016; 17:953-71. [PMID: 27269246 DOI: 10.2217/pgs.16.21] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ischemic stroke has been named one of the leading causes of death worldwide. Whereas numerous biological mechanisms and molecules were found to be associated with stroke, platelets are particularly contributive to its pathogenesis. Recent data indicate considerable variability in platelet phenotype which accounts for differences in platelet surface receptor function, count and reactivity. These features collectively influence both the events leading to a disease and effectiveness of antiplatelet therapies. Consequently, genetic variants predisposing to cerebrovascular diseases can be sequenced using a wide array of techniques and become a useful tool in clinical setting. In this review, we provide an outline of common platelet polymorphisms that impose risk on ischemic stroke development and should be evaluated as targets to improve treatment. As study results are often inconsistent, partly due to differences in demographic characteristics between study populations and the fact that the functional impact of these variants has been relatively small, we conclude that both rare, low-frequency and common variants might account for genetic contribution on abnormal platelet response to antiplatelet drugs.
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Affiliation(s)
- Lukasz Milanowski
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland
| | - Justyna Pordzik
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland
| | - Piotr K Janicki
- Perioperative Genomics Laboratory, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Marek Postula
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Warsaw, Poland.,Perioperative Genomics Laboratory, Penn State College of Medicine, Hershey, PA 17033, USA
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20
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The PlA2 variant of the platelet glycoprotein IIIa as a genetic risk factor for IVF implantation failure: accumulating evidence. J Assist Reprod Genet 2016; 33:967-8. [PMID: 27131499 DOI: 10.1007/s10815-016-0722-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 04/25/2016] [Indexed: 10/21/2022] Open
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21
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Williams DJP. The great ESCAPE - a clinical pharmacologist's journey in stroke research. Br J Clin Pharmacol 2016; 82:334-9. [PMID: 27062549 DOI: 10.1111/bcp.12966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 04/04/2016] [Accepted: 04/04/2016] [Indexed: 11/30/2022] Open
Affiliation(s)
- David J P Williams
- Royal College of Surgeons in Ireland (RCSI) and Beaumont Hospital Dublin, Dublin, Ireland
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22
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Aspirin resistance in cerebrovascular disease and the role of glycoprotein IIIa polymorphism in Turkish stroke patients. Blood Coagul Fibrinolysis 2016; 27:169-75. [DOI: 10.1097/mbc.0000000000000404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Floyd CN, Ferro A, Warner TD. Expression of the PlA2 allele of glycoprotein IIIa and its impact on platelet function. JRSM Cardiovasc Dis 2016; 4:2048004015610252. [PMID: 26858830 PMCID: PMC4734162 DOI: 10.1177/2048004015610252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 08/04/2015] [Accepted: 08/06/2015] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The platelet fibrinogen receptor represents the final common pathway of platelet activation, and is formed from two glycoprotein (GP) subunits (GPIIb/IIIa). Carriage of the mutant PlA2 allele of GPIIIa has been shown to confer an increased risk of cardiovascular events, but published studies have disagreed as to the mechanism for this association. OBJECTIVES To assess whether carriage of the PlA2 allele conforms to Mendelian patterns of expression and to identify whether carriage of the mutant allele modulates platelet function. METHODS Expression of the PlA2 allele was assessed in both healthy subjects (n = 25) and patients with known coronary artery disease (n = 90) through the development and validation of a liquid chromatography, tandem mass spectrometry (LC-MS/MS) assay. Platelet function was assessed in the patient cohort in response to multiple agonists, and these data were analysed in the context of the proteomic data. RESULTS Expression of the wild-type PlA1 allele and mutant PlA2 alleles was readily quantifiable and conformed to Mendelian patterns in both healthy and patient cohorts. Patients who were homozygous for the mutant PlA2 allele had an increased aggregatory response to adenosine diphosphate, collagen, adrenaline, ristocetin, thrombin receptor-activating peptide 6 and U46619, when assessed using agonist-concentration response curves. CONCLUSIONS These findings support the hypothesis that carriage of the mutant PlA2 allele mediates an increased risk of cardiovascular events through the modulation of platelet reactivity.
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Affiliation(s)
- Christopher N Floyd
- Department of Clinical Pharmacology, Cardiovascular Division, British Heart Foundation Centre of Research Excellence, King's College London, London, UK
| | - Albert Ferro
- Department of Clinical Pharmacology, Cardiovascular Division, British Heart Foundation Centre of Research Excellence, King's College London, London, UK
| | - Timothy D Warner
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, London, UK
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24
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Rajkumar CA, Floyd CN, Ferro A. Antiplatelet therapy as a modulator of stroke aetiology: a meta-analysis. Br J Clin Pharmacol 2015; 80:331-41. [PMID: 25784356 DOI: 10.1111/bcp.12630] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 03/09/2015] [Accepted: 03/13/2015] [Indexed: 11/28/2022] Open
Abstract
AIMS Antiplatelet therapy reduces the incidence of ischaemic stroke. Platelet-mediated thrombosis contributes variably to the major subtypes of stroke as defined by the TOAST criteria: large artery atherosclerosis (LAA), cardioembolic (CE) and small vessel occlusion (SVO). The effect of antiplatelet therapy on the incidence of each subtype is unknown and is the subject of this meta-analysis. METHODS Electronic databases were searched for articles comparing the effect of antiplatelet therapy on the incidence of stroke according to aetiological subtype. Studies containing subjects prescribed anticoagulant therapy or solely investigating subjects with atrial fibrillation were excluded. Pooled odds ratios (ORs) were calculated using a fixed effects model. RESULTS Nine studies were included (n = 5739). In patients who had an ischaemic stroke, pre-event antiplatelet therapy was associated with significantly decreased incidence of LAA (OR 0.88, 95% CI 0.79, 0.99; P = 0.026), increased incidence of CE (OR 1.23, 95% CI 1.08, 1.41; P = 0.002) and no effect on SVO (OR 0.99, 95% CI 0.88, 1.11; P = 0.806). Concordant non-significant trends were observed in primary prevention populations (n = 751): LAA (OR 0.81, 95% CI 0.57, 1.15; P = 0.240), CE (OR 1.29, 95% CI 0.89, 1.87; P = 0.179) and SVO (OR 0.99, 95% CI 0.73, 1.36; P = 0.970). Subgroup analysis of aspirin monotherapy (n = 3786) demonstrated a significant reduction in LAA (OR 0.87, 95% CI 0.76, 1.00; P = 0.046), but non-significant effects on the incidence of CE (OR 1.17, 95% CI 0.99, 1.39; P = 0.068) and SVO (OR 1.04, 95% CI 0.91, 1.20; P = 0.570). Probability of publication bias was low (P > 0.05). CONCLUSIONS Antiplatelet therapy preferentially reduces the incidence of LAA stroke compared with CE and SVO subtypes.
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Affiliation(s)
- Christopher A Rajkumar
- Department of Clinical Pharmacology, Cardiovascular Division, British Heart Foundation Centre of Research Excellence, King's College London, London, United Kingdom
| | - Christopher N Floyd
- Department of Clinical Pharmacology, Cardiovascular Division, British Heart Foundation Centre of Research Excellence, King's College London, London, United Kingdom
| | - Albert Ferro
- Department of Clinical Pharmacology, Cardiovascular Division, British Heart Foundation Centre of Research Excellence, King's College London, London, United Kingdom
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25
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Floyd CN, Ferro A. Antiplatelet drug resistance: Molecular insights and clinical implications. Prostaglandins Other Lipid Mediat 2015; 120:21-7. [DOI: 10.1016/j.prostaglandins.2015.03.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 03/22/2015] [Accepted: 03/29/2015] [Indexed: 01/05/2023]
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