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Chen X, Duan X, Gao Y. Recent Advances in Acoustofluidics for Point-of-Care Testing. Chempluschem 2024; 89:e202300489. [PMID: 37926688 DOI: 10.1002/cplu.202300489] [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: 08/31/2023] [Revised: 10/31/2023] [Accepted: 11/03/2023] [Indexed: 11/07/2023]
Abstract
Point-of-care testing (POCT) has played important role in clinical diagnostics, environmental assessment, chemical and biological analyses, and food and chemical processing due to its faster turnaround compared to laboratory testing. Dedicated manipulations of solutions or particles are generally required to develop POCT technologies that achieve a "sample-in-answer-out" operation. With the development of micro- and nanotechnology, many tools have been developed for sample preparation, on-site analysis and solution manipulations (mixing, pumping, valving, etc.). Among these approaches, the use of acoustic waves to manipulate fluids and particles (named acoustofluidics) has been applied in many researches. This review focuses on the recent developments in acoustofluidics for POCT. It starts with the fundamentals of different acoustic manipulation techniques and then lists some of representative examples to highlight each method in practical POC applications. Looking toward the future, a compact, portable, highly integrated, low power, and biocompatible technique is anticipated to simultaneously achieve precise manipulation of small targets and multimodal manipulation in POC applications.
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Affiliation(s)
- Xian Chen
- Center for Advanced Measurement Science, National Institute of Metrology, East Beisanhuan Road 18, Chaoyang District, Beijing, 100029, China
| | - Xuexin Duan
- State Key Laboratory of Precision Measuring Technology & Instruments and, College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Weijin Road 92, Nankai District, Tianjin, 300072, China
| | - Yunhua Gao
- Center for Advanced Measurement Science, National Institute of Metrology, East Beisanhuan Road 18, Chaoyang District, Beijing, 100029, China
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Evaluation of Circulating Platelet Extracellular Vesicles and Hypertension Mediated Organ Damage. Int J Mol Sci 2022; 23:ijms232315150. [PMID: 36499475 PMCID: PMC9741224 DOI: 10.3390/ijms232315150] [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] [Received: 10/14/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/04/2022] Open
Abstract
Elevated circulating platelet-derived extracellular vesicles (pEVs) have been associated with arterial hypertension. The role of hypertension-mediated organ damage (HMOD) to induce EV release is still unknown. We studied the micro- and macro-vascular changes (retinal vascular density and pulse wave velocity), endothelial function (flow-mediated vasodilation of brachial artery and finger plethysmography), and assessed the psychosocial status (anxiety and depression) in hypertensive patients to determine their relationship with EV release. Pulse wave velocity showed a significant positive correlation with pEVs (r = 0.33; p = 0.01). Systolic blood pressure (SBP) negatively correlated with retinal vascularity. The superficial retinal vascular plexus density in the whole image showed a significant negative correlation with 24 h SBP (r = −0.38, p < 0.01), day-SBP (r = −0.35, p = 0.01), and night-SBP (r = −0.27, p = 0.04). pEVs did not show significant associations with microvascular damage (retinal vascular density), endothelial function (flow-mediated vasodilation of brachial artery and finger plethysmography), or psychosocial status (anxiety and depression). Our results indicate that the pEV levels were associated with macrovascular damage measured by PWV, whereas no significant association between pEVs and microvascular damage, endothelial function, or emotional status could be detected. The potential utility of pEV in clinical practice in the context of HMOD may be limited to macrovascular changes.
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Lugo-Gavidia LM, Burger D, Nolde JM, Carnagarin R, Chan J, Bosio E, Matthews VB, Schlaich MP. Platelet-derived extracellular vesicles correlate with therapy-induced nocturnal blood pressure changes. J Hypertens 2022; 40:2210-2218. [PMID: 35950995 DOI: 10.1097/hjh.0000000000003248] [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: 11/26/2022]
Abstract
INTRODUCTION Elevated nocturnal blood pressure (BP) is closely associated with increased risk of cardiovascular (CV) events. Circulating extracellular vesicles (EVs) have been proposed as a potential CV risk biomarker and shown to correlate with BP. The present study aimed to assess whether a reduction in BP is paralleled by respective changes in EVs. METHODS Fifty-five hypertensive patients (age: 57.7 ± 14.1 years) were included in the study. EVs and BP were assessed at baseline and at 12 weeks follow-up. Interventions to lower BP included advice on life-style modification only or life-style advice combined with additional pharmacotherapy. EVs were evaluated by flow cytometry (CD41+/Annexin V+) and BP by unobserved automated office BP and ambulatory BP monitoring. RESULTS Nocturnal systolic BP correlated with EV levels at baseline ( P = 0.01). Multivariable regression models showed that changes in nocturnal systolic BP (adjusted R2 = 0.23; P = 0.01) and diastolic BP (adjusted R2 = 0.18; P = 0.02) were associated with respective changes in EV levels. Furthermore, intervention-induced improvement of systolic dipping was associated with a reduction in EVs in the univariate analysis (adjusted R2 = 0.06; P = 0.03). In contrast, systolic office, 24 h- and daytime-BP did not show significant associations with EVs. Patients whose medication was up-titrated at baseline showed a trend towards lower EV levels at follow-up (absolute change of -1.7 ± 1.3 EV/μl; P = 0.057). CONCLUSIONS Circulating platelet-derived EVs were positively associated with nocturnal BP and therapy-induced changes over a 12-week treatment period. EVs may provide an integrated measure of BP changes achieved with pharmacotherapy.
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Affiliation(s)
- Leslie Marisol Lugo-Gavidia
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, Royal Perth Hospital Medical Research Foundation, The University of Western Australia, Perth, Australia
| | - Dylan Burger
- Kidney Research Centre, The Ottawa Hospital Research Institute, Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Canada
| | - Janis M Nolde
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, Royal Perth Hospital Medical Research Foundation, The University of Western Australia, Perth, Australia
| | - Revathy Carnagarin
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, Royal Perth Hospital Medical Research Foundation, The University of Western Australia, Perth, Australia
| | - Justine Chan
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, Royal Perth Hospital Medical Research Foundation, The University of Western Australia, Perth, Australia
| | - Erika Bosio
- Centre for Clinical Research in Emergency Medicine, Harry Perkins Institute of Medical Research
| | - Vance B Matthews
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, Royal Perth Hospital Medical Research Foundation, The University of Western Australia, Perth, Australia
| | - Markus P Schlaich
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, Royal Perth Hospital Medical Research Foundation, The University of Western Australia, Perth, Australia
- Department of Internal Medicine
- Departments of Cardiology and Nephrology, Royal Perth Hospital, Perth, Australia
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Association of Circulating Platelet Extracellular Vesicles and Pulse Wave Velocity with Cardiovascular Risk Estimation. Int J Mol Sci 2022; 23:ijms231810524. [PMID: 36142436 PMCID: PMC9505165 DOI: 10.3390/ijms231810524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
Elevated circulating platelet-derived extracellular vesicles (EVs) have been reported in conditions associated with thrombotic risk. The present study aimed to assess the relationship between circulating platelet-derived EV levels, cardiovascular risk stratification and vascular organ damage, as assessed by pulse wave velocity (PWV). A total of 92 patients were included in the present analysis. Platelet EV were evaluated by flow cytometry (CD41+/Annexin v+). The cardiovascular risk was determined using the 2021 ESC guideline stratification and SCORE2 and SCORE-OP. PWV was performed as a surrogate to assess macrovascular damage. Risk stratification revealed significant group differences in EV levels (ANOVA, p = 0.04). Post hoc analysis demonstrated significantly higher levels of EVs in the very high-risk group compared with the young participants (12.53 ± 8.69 vs. 7.51 ± 4.67 EV/µL, p = 0.03). Linear regression models showed SCORE2 and SCORE-OP (p = 0.04) was a predictor of EV levels. EVs showed a significant association with macrovascular organ damage measured by PWV (p = 0.01). PWV progressively increased with more severe cardiovascular risk (p < 0.001) and was also associated with SCORE2 and SCORE-OP (p < 0.001). Within the pooled group of subjects with low to moderate risk and young participants (<40 years), those with EV levels in the highest tertile had a trend towards higher nocturnal blood pressure levels, fasting glucose concentration, lipid levels, homocysteine and PWV. Levels of platelet-derived EVs were highest in those patients with very high CV risk. Within a pooled group of patients with low to moderate risk, an unfavourable cardiometabolic profile was present with higher EV levels.
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Lugo-Gavidia LM, Carnagarin R, Burger D, Nolde JM, Chan J, Robinson S, Bosio E, Matthews VB, Schlaich MP. Circulating platelet-derived extracellular vesicles correlate with night-time blood pressure and vascular organ damage and may represent an integrative biomarker of vascular health. J Clin Hypertens (Greenwich) 2022; 24:738-749. [PMID: 35502649 PMCID: PMC9180329 DOI: 10.1111/jch.14479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/10/2022] [Accepted: 03/22/2022] [Indexed: 12/11/2022]
Abstract
Elevated office blood pressure (BP) has previously been associated with increased levels of circulating extracellular vesicles (EVs). The present study aimed to assess the relationship between levels of platelet derived EVs, ambulatory BP parameters, and pulse wave velocity as a marker of macrovascular organ damage. A total of 96 participants were included in the study. Platelet-derived extracellular vesicles (pEVs) were evaluated by flow cytometry (CD41+/Annexin v+). BP evaluation included unobserved automated office BP and ambulatory BP monitoring. Carotid-femoral pulse wave velocity (PWV) was measured as a marker of macrovascular damage. pEVs correlated with nocturnal systolic BP (r = 0.31; p = .003) and nocturnal dipping (r = -0.29; p = .01) in univariable analysis. Multivariable regression models confirmed robustness of the association of EVs and nocturnal blood pressure (p = .02). In contrast, systolic office, 24h- and daytime-BP did not show significant associations with pEVs. No correlations were found with diastolic BP. Circulating pEVs correlated with pulse wave velocity (r = 0.25; p = .02). When comparing different hypertensive phenotypes, higher levels of EVs and PWV were evident in patients with sustained hypertension compared to patients with white coat HTN and healthy persons. Circulating platelet derived EVs were associated with nocturnal BP, dipping, and PWV. Given that average nocturnal BP is the strongest predictor of CV events, platelet derived EVs may serve as an integrative marker of vascular health, a proposition that requires testing in prospective clinical trials.
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Affiliation(s)
- Leslie Marisol Lugo-Gavidia
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, RPH Research Foundation, The University of Western Australia, Perth, Australia
| | - Revathy Carnagarin
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, RPH Research Foundation, The University of Western Australia, Perth, Australia
| | - Dylan Burger
- Kidney Research Centre, The Ottawa Hospital Research Institute, Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Janis M Nolde
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, RPH Research Foundation, The University of Western Australia, Perth, Australia
| | - Justine Chan
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, RPH Research Foundation, The University of Western Australia, Perth, Australia
| | - Sandi Robinson
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, RPH Research Foundation, The University of Western Australia, Perth, Australia
| | - Erika Bosio
- Centre for Clinical Research in Emergency Medicine, Harry Perkins Institute of Medical Research, Perth, Western Australia, Australia
| | - Vance B Matthews
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, RPH Research Foundation, The University of Western Australia, Perth, Australia
| | - Markus P Schlaich
- Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit, RPH Research Foundation, The University of Western Australia, Perth, Australia.,Neurovascular Hypertension & Kidney Disease Laboratory, Baker Heart and Dabetes Institute, Melbourne, Victoria, Australia.,Departments of Cardiology and Nephrology, Royal Perth Hospital, Perth, Australia
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