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Cardoso AM, Aneli NM, Lammers M, Mânica A, Zanini D, Maciel SFVDO, Sévigny J, Corralo VDS, De Sá CA. Resistance training reduces platelet activation in hypertensive women: the role of purinergic signaling. J Hypertens 2023; 41:1745-1752. [PMID: 37796209 DOI: 10.1097/hjh.0000000000003529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
BACKGROUND AND AIM Essential arterial hypertension is a risk factor for stroke, myocardial infarction, heart failure, and arterial aneurysm, which are related to the activation of platelets. Purinergic signaling has a central role in platelet aggregation. Although ATP and ADP can act as a proaggregant agent, adenosine inhibits platelet aggregation and reduces vascular injury. Physical exercise exhibits antiaggregant properties and can modulate purinergic system. The aim of this study was to evaluate the effect of 6 months of resistance training on purinergic system components in platelets and on platelet activation, hemodynamic and anthropometric parameters in hypertensive woman. METHOD A total of 31 hypertensive and 28 normotensive middle-aged sedentary women were submitted to 6 months of resistance training. Purinergic enzymes activities were assessed in platelets; ATP and Tromboxane B2 (TXB2) levels were measured in serum. Blood pressure (BP), BMI, and body fat were also measured. All variables were statistically analyzed, considering P value less than 0.05. RESULTS Six months of resistance training was able to significantly reduce BP, ATP, and TXB2 levels as well as NTPDase, ecto-5'nucleotidase, and ADA activities in hypertensive group. After 6 months of resistance training, purinergic system components and TXB2 of hypertensive group were similar to normotensive group in platelets, demonstrating that resistance training was able to modulate platelet activation. A positive correlation was found between BP, enzyme activities, and levels of ATP and TXB2. CONCLUSION Our findings demonstrated the relationship between purinergic signaling and platelet activation in hypertension and suggests that resistance training serve as tool to reduce platelet aggregation in hypertensive woman by modulating purinergic system.
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Affiliation(s)
| | | | | | - Aline Mânica
- Health Sciences Postgraduate Program, Community University of Chapecó Region, Chapecó, SC, Brazil
| | | | | | - Jean Sévigny
- Département de microbiologie-infectiologie et d'immunologie, Faculté de Médecine and Centre de recherché du CHU de Québec, Université Laval, Québec City, Québec, Canada
| | - Vanessa da Silva Corralo
- Health Sciences Postgraduate Program, Community University of Chapecó Region, Chapecó, SC, Brazil
| | - Clodoaldo Antônio De Sá
- Health Sciences Postgraduate Program, Community University of Chapecó Region, Chapecó, SC, Brazil
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Shawky A, Sabit H, Nazih M, Baraka K, El-Zawahry M. CYP2C19 Polymorphism in Ischemic Heart Disease Patients Taking Clopidogrel After Percutaneous Coronary Intervention in Egypt. J Epidemiol Glob Health 2023; 13:374-383. [PMID: 37202608 PMCID: PMC10272067 DOI: 10.1007/s44197-023-00113-4] [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: 01/13/2023] [Accepted: 05/05/2023] [Indexed: 05/20/2023] Open
Abstract
BACKGROUND Cardiovascular diseases (CVDs) are considered a leading cause of death worldwide. Allelic variation in the CYP2C19 gene leads to a dysfunctional enzyme, and patients with this loss-of-function allele will have an impaired clopidogrel metabolism, which eventually results in major adverse cardiovascular events (MACE). Ischemic heart disease patients (n = 102) who underwent percutaneous cardiac intervention (PCI) followed by clopidogrel were enrolled in the present study. METHODS The genetic variations in the CYP2C19 gene were identified using the TaqMan chemistry-based qPCR technique. Patients were followed up for 1 year to monitor MACE, and the correlations between the allelic variations in CYP2C19 and MACE were recorded. RESULTS During the follow-up, we reported 64 patients without MACE (29 with unstable angina (UA), 8 with myocadiac infarction (MI), 1 patient with non-STEMI, and 1 patient with ischemic dilated cardiomyopathy (IDC)). Genotyping of CYP2C19 in the patients who underwent PCI and were treated with clopidogrel revealed that 50 patients (49%) were normal metabolizers for clopidogrel with genotype CYP2C19*1/*1 and 52 patients (51%) were abnormal metabolizers, with genotypes CYP2C19*1/*2 (n = 15), CYP2C19*1/*3 (n = 1), CYP2C19*1/*17 (n = 35), and CYP2C19*2/*17 (n = 1). Demographic data indicated that age and residency were significantly associated with abnormal clopidogrel metabolism. Moreover, diabetes, hypertension, and cigarette smoking were significantly associated with the abnormal metabolism of clopidogrel. These data shed light on the inter-ethnic variation in metabolizing clopidogrel based on the CYP2C19 allelic distribution. CONCLUSION This study, along with other studies that address genotype variation of clopidogrel-metabolizing enzymes, might pave the way for further understanding of the pharmacogenetic background of CVD-related drugs.
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Affiliation(s)
- Ahmed Shawky
- Department of Cardiology, College of Medicine, Helwan University, Cairo, Egypt
| | - Hussein Sabit
- Department of Medical Biotechnology, College of Biotechnology, Misr University for Science and Technology, P. O. Box 77, Giza, Egypt.
| | - Mahmoud Nazih
- Department of Clinical Pharmacy, Faculty of Pharmacy, Menoufia University, Shibin Al Kawm, Egypt
- Scientific Office, Egyptian Society of Pharmacogenomics and Personalized Medicine (ESPM), Cairo, Egypt
| | - Khalid Baraka
- Department of Cardiology, College of Medicine, Minia University, Minia, Egypt
| | - Mokhtar El-Zawahry
- Department of Medical Biotechnology, College of Biotechnology, Misr University for Science and Technology, P. O. Box 77, Giza, Egypt
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3
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Xu Y, Guo Y. Platelet indices and blood pressure: a multivariable mendelian randomization study. Thromb J 2023; 21:31. [PMID: 36941692 PMCID: PMC10026509 DOI: 10.1186/s12959-023-00475-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/10/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND Platelet indices are blood-based parameters reflecting the activation of platelets. Previous studies have identified an association between platelet indices and blood pressure (BP). However, causal inferences are prone to bias by confounding effects and reverse causation. We performed a Mendelian randomization (MR) study to compare the causal roles between genetically determined platelet indices and BP levels. METHODS Single-nucleotide polymorphisms (SNPs) associated with platelet count (PLT), plateletcrit (PCT), mean platelet volume (MPV), platelet distribution width (PDW), and BP at the level of genome-wide significance (p < 5 × 10- 8) in the UK Biobank were used as instrumental variables. In bidirectional univariable MR analyses, inverse variance-weighted (IVW), MR‒Egger, and weighted median methods were used to obtain estimates for individual causal power. In addition, heterogeneity and sensitivity analyses were performed to examine the pleiotropy of effect estimates. Finally, multivariable MR analyses were undertaken to disentangle the comparative effects of four platelet indices on BP. RESULTS In the univariable MR analyses, increased levels of PLT and PCT were associated with higher BP, and PDW was associated with higher DBP alone. In the reverse direction, SBP had a minor influence on PLT and PCT. In multivariable MR analysis, PDW and PLT revealed an independent effect, whereas the association for PCT and MPV was insignificant after colinear correction. CONCLUSION These findings suggest that platelets and BP may affect each other. PDW and PLT are independent platelet indices influencing BP. Increased platelet activation and aggregation may be involved in the pathogenesis of hypertension, which may provide insights into evaluating thromboembolic events in people with high BP. The necessity of initiating antiplatelet therapy among hypertension groups needs further investigation.
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Affiliation(s)
- Yuhan Xu
- School of Medicine, Southeast University, Nanjing, Jiangsu Province, 210009, China
- Department of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, China
| | - Yijing Guo
- School of Medicine, Southeast University, Nanjing, Jiangsu Province, 210009, China.
- Department of Neurology, Affiliated ZhongDa Hospital of Southeast University, Nanjing, China.
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Gkaliagkousi E, Gavriilaki E, Yiannaki E, Vasileiadis I, Nikolaidou B, Lazaridis A, Dolgyras P, Grigoriadis S, Triantafyllou A, Anyfanti P, Markala D, Zarifis I, Douma S. Platelet microvesicles are associated with the severity of coronary artery disease: comparison between peripheral and coronary circulation. J Thromb Thrombolysis 2020; 51:1138-1143. [PMID: 33043416 DOI: 10.1007/s11239-020-02302-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/28/2020] [Indexed: 01/13/2023]
Abstract
Microvesicles (MVs) have recently emerged as markers of thrombosis. Furthermore, there is an unexplained residual thrombotic risk is observed in patients with acute coronary syndrome (ACS) and/or stable coronary artery disease (CAD), despite treatment. We measured platelet (PMVs) and erythrocyte (ErMVs) in patients with ACS and stable CAD, both in the peripheral and coronary circulation. We studied consecutive eligible patients during a coronary angiography. Blood samples were collected from the stem of the left coronary artery and femoral artery. PMVs were significantly increased in CAD patients compared to controls. ACS patients had also increased PMVs in coronary and peripheral circulation, compared to controls. Furthermore, ACS patients exhibited increased PMVs in coronary compared to peripheral circulation. Lastly, coronary PMVs were associated with the severity of CAD based on the SYNTAX score. No significant differences were observed in the levels of ErMVs among groups. Therefore, PMVs emerge as novel markers of thrombosis in CAD, further augmenting the vicious cycle of inflammation and thrombosis during ACS. Importantly, coronary PMVs may reflect the severity of CAD in this population.
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Affiliation(s)
- E Gkaliagkousi
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - E Gavriilaki
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - E Yiannaki
- Hematology Laboratory, Theagenion Cancer Center, Thessaloniki, Greece
| | - I Vasileiadis
- Cardiology Department, G Papanicolaou Hospital, Thessaloniki, Greece
| | - B Nikolaidou
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - A Lazaridis
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - P Dolgyras
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - S Grigoriadis
- Cardiology Department, General Hospital of Veria, Veria, Greece
| | - A Triantafyllou
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - P Anyfanti
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - D Markala
- Hematology Laboratory, Theagenion Cancer Center, Thessaloniki, Greece
| | - I Zarifis
- Cardiology Department, G Papanicolaou Hospital, Thessaloniki, Greece
| | - S Douma
- 3rd Department of Internal Medicine, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Nemcsik J, László A, Lénárt L, Eörsi D, Torzsa P, Kőrösi B, Cseprekál O, Tislér A, Tabák Á, Gonda X, Rihmer Z, Hodrea J, Nemcsik-Bencze Z, Fekete A. Hyperthymic affective temperament and hypertension are independent determinants of serum brain-derived neurotrophic factor level. Ann Gen Psychiatry 2016; 15:17. [PMID: 27478486 PMCID: PMC4966794 DOI: 10.1186/s12991-016-0104-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 06/30/2016] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) has neuroprotective, proangiogenic and myogenic effects and, therefore, possibly acts as a psychosomatic mediator. Here, we measured serum BDNF (seBDNF) level in hypertensive patients (HT) and healthy controls (CONT) and its relation to affective temperaments, depression and anxiety scales, and arterial stiffness parameters. METHODS In this cross-sectional study, affective temperaments, anxiety, and depression were studied with questionnaires (TEMPS-A, HAM-A, and BDI, respectively). SeBDNF level and routine laboratory parameters were measured as well. Arterial stiffness was evaluated with a tonometric method. RESULTS Allover, 151 HT, and 32 CONT subjects were involved in the study. SeBDNF level was significantly higher in HT compared to CONT (24880 ± 8279 vs 21202.6 ± 6045.5 pg/mL, p < 0.05). In the final model of regression analysis, hyperthymic temperament score (Beta = 405.8, p = 0.004) and the presence of hypertension (Beta = 6121.2, p = 0.001) were independent determinants of seBDNF. In interaction analysis, it was found that in HT, a unit increase in hyperthymic score was associated with a 533.3 (95 %CI 241.3-825.3) pg/mL higher seBDNF. This interaction was missing in CONT. CONCLUSIONS Our results suggest a complex psychosomatic involvement of BDNF in the pathophysiology of hypertension, where hyperthymic affective temperament may have a protective role. BDNF is not likely to have an effect on large arteries.
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Affiliation(s)
- János Nemcsik
- Department of Family Medicine, Semmelweis University Budapest, Budapest, Hungary.,Health Service of Zugló (ZESZ), Budapest, Hungary
| | - Andrea László
- Department of Family Medicine, Semmelweis University Budapest, Budapest, Hungary
| | - Lilla Lénárt
- Ist Department of Pediatrics, Semmelweis University, Budapest, Hungary.,MTA-SE "Lendület" Diabetes Research Group Budapest, Budapest, Hungary
| | - Dániel Eörsi
- Department of Family Medicine, Semmelweis University Budapest, Budapest, Hungary
| | - Péter Torzsa
- Department of Family Medicine, Semmelweis University Budapest, Budapest, Hungary
| | - Beáta Kőrösi
- Department of Family Medicine, Semmelweis University Budapest, Budapest, Hungary
| | - Orsolya Cseprekál
- Department of Transplantation and Surgery, Semmelweis University, Budapest, Hungary
| | - András Tislér
- Ist Department of Internal Medicine, Semmelweis University, Budapest, Hungary
| | - Ádám Tabák
- Ist Department of Internal Medicine, Semmelweis University, Budapest, Hungary.,Department of Epidemiology and Public Health, University College London, London, UK
| | - Xenia Gonda
- Department of Pharmacodynamics, Semmelweis University, Budapest, Hungary.,Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary.,National Institute of Psychiatry and Addictions, Budapest, Hungary
| | - Zoltán Rihmer
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary.,National Institute of Psychiatry and Addictions, Budapest, Hungary
| | - Judit Hodrea
- Ist Department of Pediatrics, Semmelweis University, Budapest, Hungary.,MTA-SE "Lendület" Diabetes Research Group Budapest, Budapest, Hungary
| | - Zsófia Nemcsik-Bencze
- Magnetic Resonance Imaging Research Center, Semmelweis University, Budapest, Hungary
| | - Andrea Fekete
- Ist Department of Pediatrics, Semmelweis University, Budapest, Hungary.,MTA-SE "Lendület" Diabetes Research Group Budapest, Budapest, Hungary
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