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Che Z, O'Donovan S, Xiao X, Wan X, Chen G, Zhao X, Zhou Y, Yin J, Chen J. Implantable Triboelectric Nanogenerators for Self-Powered Cardiovascular Healthcare. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207600. [PMID: 36759957 DOI: 10.1002/smll.202207600] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Triboelectric nanogenerators (TENGs) have gained significant traction in recent years in the bioengineering community. With the potential for expansive applications for biomedical use, many individuals and research groups have furthered their studies on the topic, in order to gain an understanding of how TENGs can contribute to healthcare. More specifically, there have been a number of recent studies focusing on implantable triboelectric nanogenerators (I-TENGs) toward self-powered cardiac systems healthcare. In this review, the progression of implantable TENGs for self-powered cardiovascular healthcare, including self-powered cardiac monitoring devices, self-powered therapeutic devices, and power sources for cardiac pacemakers, will be systematically reviewed. Long-term expectations of these implantable TENG devices through their biocompatibility and other utilization strategies will also be discussed.
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Affiliation(s)
- Ziyuan Che
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Sarah O'Donovan
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Xiao Xiao
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Xiao Wan
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Guorui Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Xun Zhao
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yihao Zhou
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Junyi Yin
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Jun Chen
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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Yang Y, Li Y, Zhu L, Xu J, Tang X, Gao P. Blood pressure control and left ventricular echocardiographic progression in hypertensive patients: an 18-month follow-up study. Front Cardiovasc Med 2023; 10:1161993. [PMID: 37564911 PMCID: PMC10410104 DOI: 10.3389/fcvm.2023.1161993] [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: 02/09/2023] [Accepted: 07/11/2023] [Indexed: 08/12/2023] Open
Abstract
Objectives The impact of blood pressure (BP) control and its timing on left ventricular (LV) structure and function remains unclear. The present study was to evaluate whether BP control correlated with conventional LV geometry and function indexes or global longitudinal strain (GLS) progression, and when echocardiographic changes would occur in essential hypertension. Methods and results A total of 62 participants (mean age 55.2 ± 11.5, male 71.0%) with uncontrolled hypertension were enrolled in the longitudinal study. Patients were followed up at the 6-month and 18-month, when echocardiographic measurements were performed and BP control was evaluated during the follow up period. At the 6- and 18-month examination, we divided the hypertensive patients into two groups as BP controlled and uncontrolled group. Patients with BP uncontrolled (n = 33) had higher LV mass index (P = 0.02), higher left atrial volume index (P = 0.01), worse GLS (P = 0.005) and GLS changes (P = 0.003) compared with controlled BP (n = 29) at the 6-month follow-up examination. Patients with uncontrolled BP (n = 25) had higher LV mass index (P = 0.001), higher LV mass index changes (P = 0.01), higher relative wall thickness (P = 0.01), higher E/e' (P = 0.046), worse GLS (P = 0.02) and GLS changes (P = 0.02) compared to BP controlled group (n = 24) at the 18-month follow-up examination. GLS changes were associated with BP control (β = 0.370, P = 0.004 at the 6-month examination and β = 0.324, P = 0.02 at the 18-month examination, respectively) in stepwise multivariate regression analysis. LV mass index changes was corelated with systolic BP (β = 0.426, P = 0.003) at the 18-month follow-up examination in stepwise multivariate regression analysis. Neither was GLS changes nor LV mass index changes were related to antihypertensive medication class, including combination therapy in 6- or 18-month follow up examination. Conclusions Our findings offer new clinical evidence on the association of BP control with echocardiographic changes in hypertensive patients, and, in particular, support the view that GLS progression was earlier and subtler than conventional LV geometry and function parameters. GLS changes were significant between BP controlled and uncontrolled patients even in 6-month follow-up period.
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Affiliation(s)
- Yan Yang
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Li
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Limin Zhu
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianzhong Xu
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaofeng Tang
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Pingjin Gao
- Department of Cardiovascular Medicine, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Laboratory of Vascular Biology, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
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Bertacchini F, Agabiti Rosei C, Buso G, Cappellini S, Stassaldi D, Aggiusti C, Salvetti M, Paini A, De Ciuceis C, Muiesan ML. Subclinical HMOD in Hypertension: Left Ventricular Diastolic Dysfunction. High Blood Press Cardiovasc Prev 2022; 29:585-593. [PMID: 36352335 PMCID: PMC9708770 DOI: 10.1007/s40292-022-00548-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023] Open
Abstract
Arterial hypertension represents an important risk factor for the development of cardiac, vascular and renal events, predisposing to heart failure, acute coronary syndromes, peripheral artery disease, stroke, and chronic renal disease. Arterial hypertension leads to the development of subclinical hypertension mediated organ damage (HMOD) which has prognostic relevance and may influence the choice of treatment options. Alterations of cardiac structure and function represent the more widely assessed form of HMOD. This manuscript will focus on the diagnostic opportunities, prognostic significance and treatment of diastolic dysfunction alterations.
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Affiliation(s)
- Fabio Bertacchini
- Department of Clinical and Experimental Sciences, 2a Medicina-ASST Spedali Civili Brescia, University of Brescia, 25100, Brescia, Italy
| | - Claudia Agabiti Rosei
- Department of Clinical and Experimental Sciences, 2a Medicina-ASST Spedali Civili Brescia, University of Brescia, 25100, Brescia, Italy
| | - Giacomo Buso
- Department of Clinical and Experimental Sciences, 2a Medicina-ASST Spedali Civili Brescia, University of Brescia, 25100, Brescia, Italy
| | - Sara Cappellini
- Department of Clinical and Experimental Sciences, 2a Medicina-ASST Spedali Civili Brescia, University of Brescia, 25100, Brescia, Italy
| | - Deborah Stassaldi
- Department of Clinical and Experimental Sciences, 2a Medicina-ASST Spedali Civili Brescia, University of Brescia, 25100, Brescia, Italy
| | - Carlo Aggiusti
- Department of Clinical and Experimental Sciences, 2a Medicina-ASST Spedali Civili Brescia, University of Brescia, 25100, Brescia, Italy
| | - Massimo Salvetti
- Department of Clinical and Experimental Sciences, 2a Medicina-ASST Spedali Civili Brescia, University of Brescia, 25100, Brescia, Italy
| | - Anna Paini
- Department of Clinical and Experimental Sciences, 2a Medicina-ASST Spedali Civili Brescia, University of Brescia, 25100, Brescia, Italy
| | - Carolina De Ciuceis
- Department of Clinical and Experimental Sciences, 2a Medicina-ASST Spedali Civili Brescia, University of Brescia, 25100, Brescia, Italy
| | - Maria Lorenza Muiesan
- Department of Clinical and Experimental Sciences, 2a Medicina-ASST Spedali Civili Brescia, University of Brescia, 25100, Brescia, Italy.
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Thongsroy J, Mutirangura A. The association between Alu hypomethylation and the severity of hypertension. PLoS One 2022; 17:e0270004. [PMID: 35802708 PMCID: PMC9269909 DOI: 10.1371/journal.pone.0270004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 06/02/2022] [Indexed: 11/18/2022] Open
Abstract
Introduction Epigenetic changes that cause genomic instability may be the basis of pathogenic processes of age-associated noncommunicable diseases (NCDs). Essential hypertension is one of the most common NCDs. Alu hypomethylation is an epigenetic event that is commonly found in elderly individuals. Epigenomic alterations are also found in age-associated NCDs such as osteoporosis and diabetes mellitus. Alu methylation prevents DNA from being damaged. Therefore, Alu hypomethylated DNA accumulates DNA damage and, as a result, causes organ function deterioration. Here, we report that Alu hypomethylation is a biomarker for essential hypertension. Results We investigated Alu methylation levels in white blood cells from normal controls, patients with prehypertension, and patients with hypertension. The hypertension group possessed the lowest Alu methylation level when classified by systolic blood pressure and diastolic blood pressure (P = 0.0002 and P = 0.0088, respectively). In the hypertension group, a higher diastolic blood pressure and a lower Alu methylation level were observed (r = -0.6278). Moreover, we found that changes in Alu hypomethylation in the four years of follow-up in the same person were directly correlated with increased diastolic blood pressure. Conclusions Similar to other age-associated NCDs, Alu hypomethylation is found in essential hypertension and is directly correlated with severity, particularly with diastolic blood pressure. Therefore, Alu hypomethylation may be linked with the molecular pathogenesis of high blood pressure and can be used for monitoring the clinical outcome of this disease.
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Affiliation(s)
- Jirapan Thongsroy
- School of Medicine, Walailak University, Nakhon Si Thammarat, Thailand
- * E-mail:
| | - Apiwat Mutirangura
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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Abstract
AIM Evidence on the impact of blood pressure (BP)-lowering drugs on left ventricular (LV) mechanics in hypertension is still limited. We performed a meta-analysis of speckle-tracking echocardiographic studies in order to provide a new piece of information on this topic. METHODS The PubMed, OVID-MEDLINE, and Cochrane library databases were analysed to search for articles published from the inception up to 31 October 2021. Studies were identified by using MeSH terms and crossing the following search items: 'myocardial strain', 'left ventricular mechanics', 'speckle tracking echocardiography', 'systolic dysfunction', 'left ventricular hypertrophy', 'systemic hypertension', 'BP lowering drugs,' 'antihypertensive therapy'. RESULTS A total of 1140 hypertensive patients (mean age 55.4 years, 50% men, follow-up 6-36 months) were included in eight studies. Pretreatment and posttreatment pooled SBP/DBPs were 148.4 ± 3.5/88.7 ± 2 vs. 127.4 ± 1.9/77.8 ± 0.9 mmHg. Corresponding values for ejection fraction (EF), LV mass (LVM) index, and global longitudinal strain (GLS) were 64 ± 2.3 vs. 65.9 ± 1.7% (SMD: 0.14 ± 0.03, CI 0.08- 0.20, P = 0.001); 108.4 ± 11.2 vs. 100.2 ± 11.0 g/m2 (SMD: -0.27 ± 0.10, CI -0.46 to -0.08, P < 0.01); -17.7 ± 0.6 vs. -19.6 ± 0.4%, (SMD 0.26 ± 0.03, CI 0.20-0.32, P < 0.0001), respectively. A meta-regression analysis showed a significant relation between GLS improvement and the extent of reduction of LVMI (P = 0.0003), but not of SBP (P = 0.27). CONCLUSION Our meta-analysis suggests that antihypertensive treatment has a clear beneficial effect on LV mechanisms, and the improvement in GLS is mainly related to the reduction in LVMI rather than SBP.
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