Abstract:
BACKGROUND:There is increasing evidence implicating atrial mitochondrial dysfunction in the pathogenesis of atrial fibrillation. In this study, we explored whether alogliptin, a dipeptidyl peptidase-4 inhibitor, can prevent mitochondrial dysfunction and atrial remodeling in a diabetic rabbit model. METHODS AND RESULTS:A total of 90 rabbits were randomized into 3 groups as follows: control group (n=30), alloxan-induced diabetes mellitus group (n=30), and alogliptin-treated (12.5 mg/kg per day for 8 weeks) diabetes mellitus group (n=30). Echocardiographic and hemodynamic assessments were performed in vivo. The serum concentrations of glucagon-like peptide-1, insulin, and inflammatory and oxidative stress markers were measured. Electrophysiological properties of Langendorff-perfused rabbit hearts were assessed. Mitochondrial morphology, respiratory function, membrane potential, and reactive oxygen species generation rate were assessed. The protein expression of transforming growth factor β1, nuclear factor κB p65, and mitochondrial biogenesis-related proteins were measured by Western blot analysis. Diabetic rabbits exhibited left ventricular hypertrophy and left atrial dilation without obvious hemodynamic abnormalities, and all of these changes were attenuated by alogliptin. Compared with the control group, higher atrial fibrillation inducibility in the diabetes mellitus group was observed, and markedly reduced by alogliptin. Alogliptin decreased mitochondrial reactive oxygen species production rate, prevented mitochondrial membrane depolarization, and alleviated mitochondrial swelling in diabetic rabbits. It also improved mitochondrial biogenesis by peroxisome proliferator-activated receptor-γ coactivator 1α/nuclear respiratory factor-1/mitochondrial transcription factor A signaling regulated by adiponectin/AMP-activated protein kinase. CONCLUSIONS:Dipeptidyl peptidase-4 inhibitors can prevent atrial fibrillation by reversing electrophysiological abnormalities, improving mitochondrial function, and promoting mitochondrial biogenesis.
journal_name
J Am Heart Assocjournal_title
Journal of the American Heart Associationauthors
Zhang X,Zhang Z,Zhao Y,Jiang N,Qiu J,Yang Y,Li J,Liang X,Wang X,Tse G,Li G,Liu Tdoi
10.1161/JAHA.117.005945subject
Has Abstractpub_date
2017-05-15 00:00:00issue
5issn
2047-9980pii
JAHA.117.005945journal_volume
6pub_type
杂志文章abstract::Background In the 2000s, adults with HIV had a higher risk for atherosclerotic cardiovascular disease (ASCVD) compared with those without HIV. There is uncertainty if this excess risk still exists in the United States given changes in antiretroviral therapies and increased statin use. Methods and Results We compared t...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.119.013744
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abstract:BACKGROUND:Inappropriate sinus tachycardia (IST) and postural tachycardia syndrome (POTS) are 2 disorders characterized by sinus tachycardia. It is debated whether the pathophysiology of IST and POTS results from abnormal autonomic regulation or abnormal sinus node function. We hypothesized that intrinsic heart rate (I...
journal_title:Journal of the American Heart Association
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doi:10.1161/JAHA.113.000700
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journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.116.004547
更新日期:2017-01-06 00:00:00
abstract:BACKGROUND:Optimal thromboprophylaxis after cardiac surgery is uncertain. This systematic review aimed to define the incidence and risk factors for deep vein thrombosis (DVT), fatal and nonfatal pulmonary embolism (PE), and assess whether venous thromboembolism (VTE) prophylaxis was effective in reducing VTE without co...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章,meta分析,评审
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更新日期:2015-10-26 00:00:00
abstract::Background Recently, direct oral anticoagulants have been introduced for venous thromboembolism (VTE), which might change the management strategies of VTE. However, there have been limited data on the current real-world practice pattern for VTE in Asian countries. Methods and Results The JROAD-DPC (Japanese Registry o...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.119.014582
更新日期:2020-01-21 00:00:00
abstract:BACKGROUND:The p.Gln554X mutation in desmocollin-2 (DSC2) is prevalent in ≈10% of the Hutterite population. While the homozygous mutation causes severe biventricular arrhythmogenic right ventricular cardiomyopathy, the phenotypic features and prognosis of heterozygotes remain incompletely understood. METHODS AND RESUL...
journal_title:Journal of the American Heart Association
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doi:10.1161/JAHA.114.001407
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abstract::BACKGROUND The development of congenital heart disease (CHD) is multifactorial with genetic and environmental influences. We sought to determine the relationship between socioeconomic and environmental factors with the incidence of CHD among live-born infants in California and to determine whether maternal comorbiditi...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
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abstract:BACKGROUND:Psychosocial characteristics have a strong effect on risk of depression, and their direct treatment with behavioral interventions reduces rates of depression. Because new-onset poststroke depression (NPSD) is frequent, devastating, and often treatment-resistant, novel preventive efforts are needed. As a firs...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章,多中心研究
doi:10.1161/JAHA.116.003828
更新日期:2017-02-01 00:00:00
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journal_title:Journal of the American Heart Association
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journal_title:Journal of the American Heart Association
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更新日期:2016-04-22 00:00:00
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journal_title:Journal of the American Heart Association
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abstract:BACKGROUND:The impact of the 2013 American College of Cardiology/American Heart Association cholesterol guidelines on statin eligibility in individuals otherwise destined to experience cardiovascular disease (CVD) events is unclear. METHODS AND RESULTS:We analyzed a prospective cohort of consecutive ST-segment elevati...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
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更新日期:2017-04-12 00:00:00
abstract::Background Left ventricular (LV) recovery in takotsubo syndrome (TTS) occurs over a wide-ranging interval, varying from hours to weeks. We sought to investigate the clinical predictors and prognostic impact of recovery time for TTS patients. Methods and Results TTS patients from the International Takotsubo Registry we...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章,多中心研究
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更新日期:2019-11-05 00:00:00
abstract::Background Detection of flow reserve ( FR ) by dobutamine stress echocardiography is used for risk stratification in low-gradient aortic stenosis ( AS ). Prognostic significance of dobutamine stress echocardiography in the transcatheter aortic valve replacement era is unclear. We aimed to assess the current relevance ...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.011168
更新日期:2019-03-19 00:00:00
abstract::Background To determine if accelerometer measured sedentary behavior (SED), light-intensity physical activity (LPA), and moderate-to-vigorous-intensity physical activity (MVPA) in midlife is prospectively associated with cognitive function. Methods and Results Participants were 1970 adults enrolled in the CARDIA (Coro...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.120.018350
更新日期:2021-01-20 00:00:00
abstract:BACKGROUND:Cardiovascular disease is the leading cause of death in the United States, making improving cardiovascular health a key population health goal. As part of efforts to achieve this, the American Heart Association has developed the first comprehensive cardiovascular health index (CVHI). Our objective was to inv...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.114.001650
更新日期:2015-09-22 00:00:00
abstract::Background Ticagrelor reduces ischaemic end points in acute coronary syndromes. However, outcomes of ticagrelor versus clopidogrel in real-world patients with acute coronary syndromes treated with percutaneous coronary intervention (PCI) remain unclear. We sought to examine whether treatment with ticagrelor is superio...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.119.015990
更新日期:2020-07-21 00:00:00
abstract::Background Young women with coronary artery disease ( CAD ), a group with high psychosocial burden, were previously shown to have higher levels of interleukin-6 ( IL -6) compared with men of similar age. We sought to examine IL -6 response to acute stress in CAD patients across sex and age, and contrast results to hea...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.010329
更新日期:2018-12-04 00:00:00
abstract::Background Sex-specific differences may influence prognosis after deferred revascularization following fractional flow reserve (FFR) measurement. This study sought to investigate the sex differences in long-term prognosis of patients with deferred revascularization following FFR assessment. Methods and Results A total...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.119.014458
更新日期:2020-02-18 00:00:00
abstract:BACKGROUND:Extracellular fluid (ECF) excess is an independent predictor of cardiovascular morbidity in patients undergoing dialysis. This study aimed to investigate the relationship between ECF status, which is affected by renal function, and coronary artery calcification (CAC), which is a marker of cardiovascular dise...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.008935
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pub_type: 杂志文章,多中心研究
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更新日期:2020-02-04 00:00:00
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journal_title:Journal of the American Heart Association
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更新日期:2015-05-14 00:00:00
abstract::[This corrects the article DOI: 10.1161/JAHA.117.005967.]. ...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章,已发布勘误
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更新日期:2017-12-23 00:00:00
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journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.115.002828
更新日期:2016-03-18 00:00:00
abstract:BACKGROUND:Left ventricular noncompaction (LVNC) has since been classified as a primary genetic cardiomyopathy, but the genetic basis is not fully evaluated. The aim of the present study was to identify the genetic spectrum using next-generation sequencing and to evaluate genotype-phenotype correlations in LVNC patient...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.117.006210
更新日期:2017-08-30 00:00:00
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journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.120.017728
更新日期:2020-10-20 00:00:00
abstract:BACKGROUND:MYBPC3 dysfunctions have been proven to induce dilated cardiomyopathy, hypertrophic cardiomyopathy, and/or left ventricular noncompaction; however, the genotype-phenotype correlation between MYBPC3 and restrictive cardiomyopathy (RCM) has not been established. The newly developed next-generation sequencing m...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.115.001879
更新日期:2015-07-10 00:00:00
abstract:BACKGROUND:Platelet-derived growth factor BB, a potent mitogen of pulmonary artery smooth muscle cells (PASMCs), has been implicated in pulmonary arterial remodeling, which is a key pathogenic feature of pulmonary arterial hypertension. Previous microRNA profiling in platelet-derived growth factor BB-treated PASMCs fou...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.117.007572
更新日期:2018-03-07 00:00:00
abstract::Background Turner syndrome ( TS ) is the most common sex chromosome abnormality in women and is associated with increased morbidity and mortality. We describe long-term outcomes in a large cohort of patients with TS . Methods and Results Retrospective review of patients with TS followed at Mayo Clinic Rochester from 1...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.118.011501
更新日期:2019-06-04 00:00:00
abstract::Background Short-term variability of the QT interval (STVQT) has been proposed as a novel electrophysiological marker for the prediction of imminent ventricular arrhythmias in animal models. Our aim is to study whether STVQT can predict imminent ventricular arrhythmias in patients. Methods and Results In 2331 patients...
journal_title:Journal of the American Heart Association
pub_type: 杂志文章
doi:10.1161/JAHA.120.018133
更新日期:2020-12-01 00:00:00