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van Diemen JJK, Madsen MC, Vrancken P, de Bie K, van der Bom JG, Veen G, Bonten TN, Fuijkschot WW, Smulders YM, Thijs A. Evening aspirin intake results in higher levels of platelet inhibition and a reduction in reticulated platelets - a window of opportunity for patients with cardiovascular disease? Platelets 2020; 32:821-827. [PMID: 32838616 DOI: 10.1080/09537104.2020.1809643] [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] [Indexed: 01/08/2023]
Abstract
Cardiovascular events occur most frequently in the early morning. Similarly, the release of reticulated platelets (RP) by megakaryocytes has a peak in the late night and early morning. Which aspirin regimen most effectively inhibits platelets during these critical hours is unknown. Hence, the primary objective of this trial was to assess platelet function and RP levels at 8.00 AM, in stable cardiovascular (CVD) patients, during three different aspirin regimens. In this open-label randomized cross-over study subjects were allocated to three sequential aspirin regimens: once-daily (OD) 80 mg morning; OD-evening, and twice-daily (BID) 40 mg. Platelet function was measured at 8.00 AM & 8.00 PM by serum Thromboxane B2 (sTxB2) levels, the Platelet Function Analyzer (PFA)-200® Closure Time (CT), Aspirin Reaction Units (ARU, VerifyNow®), and RP levels. In total, 22 patients were included. At 8.00 AM, sTxB2 levels were the lowest after OD-evening in comparison with OD-morning (p = <0.01), but not in comparison with BID. Furthermore, RP levels were similar at 8.00 AM, but statistically significantly reduced at 8.00 PM after OD-evening (p = .01) and BID (p = .02) in comparison with OD-morning. OD-evening aspirin intake results in higher levels of platelet inhibition during early morning hours and results in a reduction of RP levels in the evening. These findings may, if confirmed by larger studies, be relevant to large groups of patients taking aspirin to reduce cardiovascular risk.
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Affiliation(s)
- J J K van Diemen
- Department of Internal Medicine, Amsterdam UMC, Location VU University, Amsterdam, The Netherlands
| | - M C Madsen
- Department of Internal Medicine, Amsterdam UMC, Location VU University, Amsterdam, The Netherlands
| | - P Vrancken
- Department of Internal Medicine, Amsterdam UMC, Location VU University, Amsterdam, The Netherlands
| | - K de Bie
- Department of Internal Medicine, Amsterdam UMC, Location VU University, Amsterdam, The Netherlands
| | - J G van der Bom
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.,JJ Van Rood Center for Clinical Transfusion Research, Sanquin Research, Leiden, The Netherlands
| | - G Veen
- Department of Cardiology, Amsterdam UMC, Location VU University, Amsterdam, The Netherlands
| | - T N Bonten
- Department of Public Health & Primary Care, Leiden University Medical Center, Leiden, The Netherlands
| | - W W Fuijkschot
- Department of Internal Medicine, Amsterdam UMC, Location VU University, Amsterdam, The Netherlands
| | - Y M Smulders
- Department of Internal Medicine, Amsterdam UMC, Location VU University, Amsterdam, The Netherlands
| | - A Thijs
- Department of Internal Medicine, Amsterdam UMC, Location VU University, Amsterdam, The Netherlands
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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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Racca C, van Diemen JJK, Fuijkschot WW, Spit K, Bonten TN, Numans ME, van der Bom JG, Smulders YM, Thijs A. Aspirin intake in the morning is associated with suboptimal platelet inhibition, as measured by serum Thromboxane B2, during infarct-prone early-morning hours. Platelets 2018; 30:871-877. [DOI: 10.1080/09537104.2018.1528347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Cati Racca
- Department of Internal Medicine, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
| | | | - Wessel Willem Fuijkschot
- Department of Internal Medicine, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
| | - Karlinde Spit
- Department of Internal Medicine, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
| | - Tobias Nicolaas Bonten
- Department of Public Health & Primary Care, Leiden University Medical Center, Leiden, The Netherlands
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Mattijs Everard Numans
- Department of Public Health & Primary Care, Leiden University Medical Center, Leiden, The Netherlands
| | - Johanna Gerarda van der Bom
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
- JJ van Rood Center for Clinical Transfusion Research, Sanquin Research, Leiden, The Netherlands
| | - Yvo Michiel Smulders
- Department of Internal Medicine, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
| | - Abel Thijs
- Department of Internal Medicine, Amsterdam University Medical Center, VU University, Amsterdam, The Netherlands
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Grove EL, Würtz M, Thomas MR, Kristensen SD. Antiplatelet therapy in acute coronary syndromes. Expert Opin Pharmacother 2015; 16:2133-47. [DOI: 10.1517/14656566.2015.1079619] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Freynhofer MK, Gruber SC, Grove EL, Weiss TW, Wojta J, Huber K. Antiplatelet drugs in patients with enhanced platelet turnover: biomarkers versus platelet function testing. Thromb Haemost 2015; 114:459-68. [PMID: 26272640 DOI: 10.1160/th15-02-0179] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 07/27/2015] [Indexed: 12/18/2022]
Abstract
Platelets are key players in atherothrombosis. Antiplatelet therapy comprising aspirin alone or with P2Y12-inhibitors are effective for prevention of atherothrombotic complications. However, there is interindividual variability in the response to antiplatelet drugs, leaving some patients at increased risk of recurrent atherothrombotic events. Several risk factors associated with high on-treatment platelet reactivity (HTPR), including elevated platelet turnover, have been identified. Platelet turnover is adequately estimated from the fraction of reticulated platelets. Reticulated platelets are young platelets, characterised by residual messenger RNA. They are larger, haemostatically more active and there is evidence that platelet turnover is a causal and prognostic factor in atherothrombotic disease. Whether platelet turnover per se represents a key factor in pathogenesis, progression and prognosis of atherothrombotic diseases (with focus on acute coronary syndromes) or whether it merely facilitates insufficient platelet inhibition will be discussed in this state-of-the art review.
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Affiliation(s)
- Matthias K Freynhofer
- Matthias K. Freynhofer, MD, 3rd Department of Medicine, Cardiology, Wilhelminen Hospital, Montleartstraße 37, A-1160, Vienna, Austria, Tel.: +43 1 49150 2301, Fax: +43 1 49150 2309, E-mail:
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Neergaard-Petersen S, Hvas AM, Grove EL, Larsen SB, Gregersen S, Kristensen SD. The Influence of Haemoglobin A1c Levels on Platelet Aggregation and Platelet Turnover in Patients with Coronary Artery Disease Treated with Aspirin. PLoS One 2015; 10:e0132629. [PMID: 26148094 PMCID: PMC4493028 DOI: 10.1371/journal.pone.0132629] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 06/16/2015] [Indexed: 12/23/2022] Open
Abstract
Background Hyperglycaemia may attenuate the antiplatelet effect of aspirin and thereby increase the risk of cardiovascular events. We investigated the influence of increased haemoglobin A1c (HbA1c) levels on platelet aggregation and turnover in a large cohort of patients with coronary artery disease (CAD) with type 2 diabetes, prediabetes or no diabetes. Methods In this observational study, we included 865 stable CAD patients on 75 mg aspirin as mono-therapy of whom 242 patients had type 2 diabetes and were receiving antidiabetic drugs. Among 623 patients without diabetes, we classified 303 patients with prediabetes (HbA1c ≥5.7–6.4% [39–47 mmol/mol]) naive to antidiabetic drugs. Platelet aggregation was evaluated by the Multiplate Analyzer using arachidonic acid and collagen and by the VerifyNow Aspirin. Platelet turnover was evaluated by immature platelets using flow cytometry and platelet activation by soluble P-selectin. Results CAD patients with type 2 diabetes had higher platelet aggregation (all p-values <0.01), platelet turnover (immature platelet count, p<0.01) and platelet activation (p<0.001) than patients without diabetes. CAD patients with prediabetes had increased platelet aggregation (p = 0.02) and platelet count (p = 0.02) compared with patients without diabetes. Increased levels of HbA1c correlated positively with increased platelet aggregation using arachidonic acid (r = 0.19, p<0.0001), collagen (r = 0.10, p<0.01) and VerifyNow (r = 0.15, p<0.0001), and with platelet count (r = 0.08, p = 0.01), immature platelet count (r = 0.11, p<0.001) and soluble P-selectin (r = 0.15, p<0.0001). These associations were mainly evident in non-diabetic and prediabetic CAD patients. Conclusions CAD patients with prediabetes and diabetes may have attenuated antiplatelet effect of aspirin compared with CAD patients without diabetes. This may be related to increased platelet count in patients with prediabetes. Increased levels of HbA1c correlated positively, though weakly, with increased platelet aggregation, platelet turnover and platelet activation.
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Affiliation(s)
| | - Anne-Mette Hvas
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Søren Gregersen
- Department of Endocrinology and Internal Medicine MEA, Aarhus University Hospital, Aarhus, Denmark
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