Abstract:
BACKGROUND:Coenzyme Q10 (CoQ10) is essential for ATP generation and has antioxidant properties. Decreased CoQ10 levels have been reported in human heart failure (CHF), but it remains unclear if this is a conserved feature of CHF. The objective of the study was to determine if tachycardia-induced CHF in the dog is associated with reduced CoQ10 levels. Furthermore, it was hypothesized that CoQ10 supplementation may improve CHF severity by preventing CoQ10 deficiency (if present) or via antioxidant effects. METHODS AND RESULTS:Serum and myocardial levels of CoQ10 were examined in normal dogs (n = 6), dogs with CHF (control, n = 5), and dogs with CHF treated with CoQ10 (CoQ10; 10 mg/kg/day, n = 5). Serum CoQ10 levels did not change with CHF in control dogs, and myocardial levels were similar to those of normal dogs. CoQ10 therapy increased serum but not myocardial levels of CoQ10. In early CHF, CoQ10-treated dogs had lower filling pressures, and, in severe CHF, CoQ10-treated dogs had less hypertrophy as compared with untreated dogs. Other indices of CHF severity were similar in control and CoQ10-treated dogs. CONCLUSION:These data indicate that CoQ10 deficiency is not present in this model of CHF. Although dramatic effects on hemodynamics were not observed, CoQ10 supplementation did appear to attenuate the hypertrophic response associated with CHF. Key words: enzymes, cardiomyopathy, hormones, antioxidant.
journal_name
J Card Failjournal_title
Journal of cardiac failureauthors
Harker-Murray AK,Tajik AJ,Ishikura F,Meyer D,Burnett JC,Redfield MMdoi
10.1054/jcaf.2000.8839keywords:
subject
Has Abstractpub_date
2000-09-01 00:00:00pages
233-42issue
3eissn
1071-9164issn
1532-8414pii
S1071-9164(00)71566-1journal_volume
6pub_type
杂志文章abstract:BACKGROUND:The effect of hospital quality of care on hospital readmission for patients with congestive heart failure (CHF) has not been widely studied. METHODS AND RESULTS:We examined the effects of clinical factors, hospital quality of care, and cardiologist involvement on 3-month readmission rates in patients with C...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1054/jcaf.2001.28931
更新日期:2001-12-01 00:00:00
abstract:BACKGROUND:The beneficial effects of the early use of angiotensin-converting enzyme inhibitors (ACEis) in patients with acute myocardial infarction (MI) are well documented. However, the effects of ACEis in patients with an old MI and preserved cardiac function have not yet been studied. We examined the effects of 12 m...
journal_title:Journal of cardiac failure
pub_type: 临床试验,杂志文章
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更新日期:1999-12-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2016.11.006
更新日期:2017-04-01 00:00:00
abstract:OBJECTIVE:The aim of this work was to determine whether adrenergic-induced left ventricular (LV) dilation and eccentric remodeling in pressure-overload hypertrophy is sex specific. METHODS AND RESULTS:Chronic β-adrenoreceptor activation was produced in male and female spontaneously hypertensive rats (SHRs) by means of...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2016.09.017
更新日期:2017-02-01 00:00:00
abstract:BACKGROUND:Cardiac resynchronization therapy (CRT) has been shown to improve heart failure (HF) symptoms and survival. We hypothesized that a greater improvement in left-ventricular ejection fraction (LVEF) after CRT is associated with greater survival benefit. METHODS AND RESULTS:In 693 patients across 2 internationa...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,多中心研究
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abstract:BACKGROUND:Recent advances in cardiac multi-detector computed tomography (MDCT) technology now permits entire coronary tree evaluation in a single breath hold with submillimeter slice collimation and improved temporal resolution. METHODS AND RESULTS:Besides excellent correlation with invasive angiogram for the detecti...
journal_title:Journal of cardiac failure
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更新日期:2007-04-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2007.04.009
更新日期:2007-09-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章,评审
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更新日期:2016-10-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章,多中心研究
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journal_title:Journal of cardiac failure
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更新日期:2020-06-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2011.01.014
更新日期:2011-06-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2020.02.006
更新日期:2020-07-01 00:00:00
abstract::Propionyl-L-carnitine (PLC) is a naturally occurring compound that has been considered for the treatment of congestive heart failure (CHF). The rationale for its use in this pathology is related to its effects on cardiac and skeletal muscle. Chronic treatment with PLC improves the contraction of isolated and aerobic p...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,评审
doi:10.1016/s1071-9164(97)90018-x
更新日期:1997-09-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2009.09.001
更新日期:2010-01-01 00:00:00
abstract::Since the introduction of biomarkers in the late 1980s, considerable research has been dedicated to their validation and application. As a result, many biomarkers are now commonly used in clinical practice. However, the role of biomarkers in the prediction of right ventricular failure (RVF) and in the prognostication ...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2019.09.007
更新日期:2020-09-01 00:00:00
abstract:BACKGROUND:Wolff-Parkinson-White (WPW) has been associated with left ventricular noncompaction (LVNC) in children. Little is known about the prevalence of this association, clinical outcomes, and treatment options. METHODS:Retrospective review of subjects with LVNC. LVNC was defined by established criteria; those with...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2019.09.014
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND:A link between diabetes mellitus (DM) and heart failure (HF) has been well-recognized for more than a century. HF is also closely linked to abnormal glucose regulation (AGR) and insulin resistance (IR) in patients without DM and, similarly, these conditions commonly coexist. In epidemiological studies, each ...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,评审
doi:10.1016/j.cardfail.2010.05.027
更新日期:2010-09-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章,多中心研究
doi:10.1016/j.cardfail.2009.05.011
更新日期:2009-11-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2004-12-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章,多中心研究
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更新日期:2013-04-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章,随机对照试验
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更新日期:2011-09-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章
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更新日期:2020-03-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章,多中心研究
doi:10.1016/j.cardfail.2014.05.003
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND:Ventilatory efficiency, commonly assessed by the minute ventilation (VE)-carbon dioxide production (VCO2) slope, has proven to be a strong prognostic marker in the heart failure (HF) population. Recently, the oxygen uptake efficiency slope (OUES) has demonstrated prognostic value, but additional comparisons ...
journal_title:Journal of cardiac failure
pub_type: 杂志文章,多中心研究
doi:10.1016/j.cardfail.2007.03.004
更新日期:2007-08-01 00:00:00
abstract:BACKGROUND:It remains unclear whether coronary microvascular response to alpha-adrenergic activation alters in chronic heart failure (CHF). METHODS AND RESULTS:We investigated the alpha-adrenergic receptor-mediated effects on coronary pressure-flow relationship (CPFR) in a tachycardia-induced canine heart failure mode...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2005.01.003
更新日期:2005-06-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2018.07.003
更新日期:2018-08-01 00:00:00
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journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2013.08.002
更新日期:2013-09-01 00:00:00
abstract:BACKGROUND:Heart failure (HF) guidelines recommend treatment with multiple medications to improve survival, functioning, and quality of life. Yet, HF treatments can be costly, resulting in significant economic burden for some patients. To date, there are few data on the impact of patients' perceived difficulties in aff...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2006.03.004
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND:Peak oxygen consumption (peak VO₂) and late gadolinium enhancement (LGE) on cardiovascular magnetic resonance (CMR) are prognostic in heart failure. We investigated whether LGE-CMR and peak VO₂combined had additive value in risk stratifying patients with nonischemic dilated cardiomyopathy (DCM). METHODS AND...
journal_title:Journal of cardiac failure
pub_type: 杂志文章
doi:10.1016/j.cardfail.2014.08.005
更新日期:2014-11-01 00:00:00