Abstract:
OBJECTIVE:Metabolic syndrome (MetS) is associated with insulin resistance and increases the cardiovascular risk. Oxidative stress constitutes a potential mechanism that links insulin resistance and cardiovascular disease. The aim of this study was to analyze the relationship of NADPH oxidase activation with insulin resistance, and the effect of this interaction on the cardiovascular risk in MetS patients. METHODS:NADPH oxidase-dependent superoxide production and expression was evaluated by luminescence and western blot, respectively, in peripheral blood mononuclear cells obtained from 125 patients with MetS. Insulin resistance was defined by the homeostasis model assessment index. Matrix metalloproteinase-9 was quantified by enzyme-linked immunosorbent assay in plasma samples. To ascertain the mechanisms involved in vivo, we performed in-vitro experiments in cultured macrophages. RESULTS:Fifty-six percent of patients with MetS showed insulin resistance. Plasma matrix metalloproteinase-9 levels were higher (P < 0.05) in insulin-resistant patients than in patients with insulin sensitivity. NADPH oxidase-dependent superoxide production was augmented (P < 0.05) in insulin-resistant patients with respect to insulin-sensitive patients. The interaction between insulin resistance and abnormally high NADPH oxidase-mediated superoxide production was associated with the highest matrix metalloproteinase-9 values. Increased NADPH oxidase-dependent superoxide production was significantly associated with higher NADPH oxidase p22phox expression in insulin-resistant than in insulin-sensitive patients. Interestingly, insulin upregulated p22phox in peripheral blood mononuclear cells and in murine macrophages. CONCLUSION:Insulin resistance is associated with phagocytic NADPH oxidase activation. This association results in the highest cardiovascular risk in MetS patients.
journal_name
J Hypertensjournal_title
Journal of hypertensionauthors
Fortuño A,Bidegain J,San José G,Robador PA,Landecho MF,Beloqui O,Díez J,Zalba Gdoi
10.1097/HJH.0b013e32832b1e8fsubject
Has Abstractpub_date
2009-07-01 00:00:00pages
1420-30issue
7eissn
0263-6352issn
1473-5598journal_volume
27pub_type
杂志文章abstract::Several myosin isoforms are expressed in smooth muscle, based upon both heavy and light chain polymorphisms. These myosin isoenzymes reveal distinct detachment rate constants, thus regulating the responsiveness of the VSMC contractile apparatus to Ca2+, as well as its energetical and mechanical behavior. ...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/00004872-199205000-00002
更新日期:1992-05-01 00:00:00
abstract:OBJECTIVE:To estimate the sensitivity and specificity of self-reported hypertension (HTN) as compared with the clinical diagnosis in epidemiological studies. METHODS:We searched MEDLINE, Embase, Scopus, Web of Science, LILACS, Google Scholar, and ProQuest Dissertations & Theses Global: Health & Medicine databases. In ...
journal_title:Journal of hypertension
pub_type: 杂志文章,meta分析
doi:10.1097/HJH.0000000000001648
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVE:The pregnant spontaneously hypertensive rat (SHR) exhibits a decrease in arterial blood pressure shortly before delivery; however, the mechanisms are unknown. Nitric oxide may be involved. DESIGN:Blood pressure in stroke-prone SHR (SHRSP) and Wistar-Kyoto control rats (WKY) was telemetrically measured. Four ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200202000-00015
更新日期:2002-02-01 00:00:00
abstract:OBJECTIVES:Lower parental education is associated with higher adolescent blood pressure (BP). We examined the contribution of modifiable risk factors from infancy to adolescence that could potentially explain the link between parental education and SBP and DBP in the offspring. METHODS:In a prospective Chinese birth c...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001003
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:There are no studies that relate BsmI polymorphism of the vitamin D receptor (VDR) gene and with vitamin D to blood pressure (BP). OBJECTIVE:To analyze if this polymorphism and 25-hydroxyvitamin D levels (25OHD3) influence BP in a population of healthy subjects. DESIGN:Transversal study on healthy populati...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/01.hjh.0000098139.70956.21
更新日期:2003-11-01 00:00:00
abstract:OBJECTIVE:Studies of experimental animals show glomerular hypertension to be important in the progression of glomerular disease. We evaluated this connection clinically by examining the relationship between glomerular hemodynamics and histological changes in patients with immunoglobulin (Ig)A nephropathy. METHODS:The ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200018010-00015
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVE:To investigate the interrelationship between arrhythmias provoked by acute pressure changes, and the presence of left ventricular hypertrophy and electrolyte imbalances. DESIGN:An isolated working rat heart model was used in a prospective comparison of the effects of acute pressure changes in hypertensive an...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199202000-00010
更新日期:1992-02-01 00:00:00
abstract:OBJECTIVE:Genome-wide association studies have linked variants of fat mass and obesity-associated protein (FTO) to obesity. However, the molecular function of FTO remains unclear. In this study, we sought to investigate the potential effects of FTO in modulating cholesterol deposition in macrophage foam cells, as well ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001255
更新日期:2017-04-01 00:00:00
abstract:OBJECTIVE:Hypertension affects cerebrovascular autoregulation and increases the risk of cerebrovascular events and dementia. Notably, it is associated with cerebrovascular remodeling and lower resting cerebral blood flow (CBF). We wanted to determine, using arterial spin-labeling-MRI, the impact of a head-down tilt (HD...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000002709
更新日期:2020-12-09 00:00:00
abstract:OBJECTIVE:To investigate the role of an activated endothelin system in the renal dysfunction observed in chronic heart failure after myocardial infarction. METHODS:In rats with heart failure after myocardial infarction and in sham-operated animals (Sham), we investigated the effect on renal function of long-term oral ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200018100-00020
更新日期:2000-10-01 00:00:00
abstract:OBJECTIVE:Adenosine dilates rabbit renal arteries by an endothelium-dependent, nitric oxide (NO)- and prostaglandin-independent mechanism. The aim was to identify the responsible P1-purinoceptor subtype and to investigate the involvement of K+-channels. METHODS:Rabbit renal arteries were perfused with medium containin...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199917121-00032
更新日期:1999-12-01 00:00:00
abstract::A10 vascular smooth muscle cells were placed in a flow chamber and exposed to the circulation of foetal calf serum at different rates and pressures. Under unidirectional laminar flow, physiological flow rates and pressures had almost no effect on internal sodium content. Indeed, pressure values greater than 150 mmHg w...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199111000-00008
更新日期:1991-11-01 00:00:00
abstract::: Altered blood pressure (BP) is a common phenomenon in acute ischemic stroke (AIS), with high BP being the most frequent scenario. The pathophysiology of BP changes in AIS is complex and only partially understood. The available evidence indicates that extremely high BP during AIS is associated with a poor outcome. Im...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001704
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND:Arterial stiffness is an independent predictor of cardiovascular events and mortality in hypertensive patients. The influence of different antihypertensive drug classes on improving arterial stiffness beyond blood pressure reduction is not widely available. We aimed to determine whether the artery stiffness ...
journal_title:Journal of hypertension
pub_type: 杂志文章,meta分析
doi:10.1097/HJH.0b013e328346a583
更新日期:2011-06-01 00:00:00
abstract:AIMS:Baroreflex activation therapy (BAT) has recently been shown to reduce muscle sympathetic nerve activity and hospitalization rate while improving clinical variables through 6 months of therapy in patients with heart failure and reduced ejection fraction (HFrEF). The objective of the present study is to extend the i...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1097/HJH.0000000000000603
更新日期:2015-08-01 00:00:00
abstract:OBJECTIVE:To determine whether the decision to treat uncomplicated mild hypertension with drugs, in accordance with the World Health Organization - International Society of Hypertension (WHO/ISH) guidelines based on a series of blood pressure (BP) measurements over 6 months, resulted in the treatment of patients at hig...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199917060-00014
更新日期:1999-06-01 00:00:00
abstract::Plasma viscosity and fibrinogen concentrations were measured in 70 diabetics (35 hypertensive and 35 normotensive) and compared with those of 35 age- and sex-matched normotensive healthy subjects in relation to body weight. The body weight, body mass index, blood pressure (systolic and diastolic), mean arterial pressu...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199008000-00004
更新日期:1990-08-01 00:00:00
abstract:OBJECTIVE:Construction of prognostically relevant endpoints for clinical trials in hypertension has increasingly included coronary revascularization with myocardial infarction (MI) as manifestations of coronary artery disease. However, whether coronary revascularization and MI predict other cardiovascular events simila...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:
更新日期:2010-06-01 00:00:00
abstract:OBJECTIVE:During the Candesartan Antihypertensive Survival Evaluation in Japan (CASE-J) trial, patients with hypertension who received amlodipine had similar cardiovascular risks as those who received candesartan. We conducted a post-trial study, the Candesartan Antihypertensive Survival Evaluation in Japan 10-year fol...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001780
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Secondary prevention of stroke with antihypertensive drugs is now standard practice, but it is unclear how soon after a cerebrovascular event antihypertensive therapy should be initiated or re-started. Due to impaired cerebral autoregulation, changes in systemic blood pressure may be reflected in cerebral pe...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004872-200405000-00022
更新日期:2004-05-01 00:00:00
abstract:OBJECTIVE:High blood pressure is common in acute stroke and is associated independently with poor outcome. Lowering blood pressure might improve outcome, provided it does not reduce cerebral blood flow in the presence of dysfunctional cerebral autoregulation. METHODS:We performed a systematic review of clinical contro...
journal_title:Journal of hypertension
pub_type: 杂志文章,meta分析
doi:10.1097/HJH.0b013e3282fbd240
更新日期:2008-06-01 00:00:00
abstract:OBJECTIVE:The present study aimed to characterize the influence of salt intake on the gene expression of the kidney specific chloride channels CLC-K1 and CLC-K2 in the kidneys of salt-resistant and salt-sensitive Dahl rats. DESIGN:For this purpose Dahl salt-resistant (Dahl-R) and Dahl salt-sensitive rats (Dahl-S) were...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200018090-00015
更新日期:2000-09-01 00:00:00
abstract:OBJECTIVE:We hypothesized that downregulation of the antioxidant thioredoxin system contributes to oxidative stress in angiotensin II-induced hypertension. As oestrogen may protect against oxidative stress, we also evaluated whether the thioredoxin system, particularly in the heart, is differentially regulated between ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3280acac60
更新日期:2007-06-01 00:00:00
abstract:OBJECTIVES:It is estimated that there are more than 16 million adults with drug-resistant hypertension in China. Nevertheless, the prevalence of and risk factors for primary aldosteronism, a highly curable condition among adults with drug-resistant hypertension, has not been fully investigated. METHODS:Between January...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328360ddf6
更新日期:2013-07-01 00:00:00
abstract:OBJECTIVES:Reflection of the finger pulse wave form is a valid measure of arterial stiffness, which may be continuously assessed during sleep. We investigated the relationships between sleep, sleep-disordered breathing, hypertension, and pulse propagation time (PPT) in patients with suspected sleep apnea. METHODS:The ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001111
更新日期:2016-12-01 00:00:00
abstract:OBJECTIVE:Dietary sodium and potassium intakes are factors known to influence blood pressure (BP) through different pathways. These mechanisms likely result in differential effects on parameters characterizing BP. The aim of the study was to evaluate relationships between both sodium and potassium intake and all BP par...
journal_title:Journal of hypertension
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/hjh.0b013e328329bc08
更新日期:2009-06-01 00:00:00
abstract:OBJECTIVE:We investigated the contribution of reduced nicotinamide-adenine dinucleotide phosphate (NADPH) oxidase-dependent reactive oxygen species (ROS) generation to the pathogenesis of diastolic heart failure (DHF) in Dahl salt-sensitive (DS) hypertensive rats, with the aim of testing our hypothesis that the cardiop...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/01.hjh.0000226200.73065.5d
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND:We previously showed that young transgenic mice overexpressing preproendothelin-1 specifically in endothelial cells had hypertrophic remodeling, endothelial dysfunction, increased vascular NADPH oxidase activity, and inflammation in mesenteric small arteries without blood pressure (BP) elevation compared to ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328338bb8b
更新日期:2010-06-01 00:00:00
abstract::We have demonstrated high concentrations of inactive renin in mouse amniotic fluid compared with mouse plasma and other organs. Its molecular weight was similar to that of prorenin from the mouse submaxillary gland (42 000 daltons). The activated renin had a Km value of 1.48 greater than M which is identical to that o...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-198410000-00012
更新日期:1984-10-01 00:00:00
abstract:OBJECTIVE:It is not well known which exercise intensity is needed to obtain blood pressure reductions in response to endurance training. We therefore compared the effect of training at lower and higher intensity on blood pressure, and, in addition on other cardiovascular risk factors, in at least 55-year-old sedentary ...
journal_title:Journal of hypertension
pub_type: 杂志文章,随机对照试验
doi:10.1097/HJH.0b013e328322cf60
更新日期:2009-04-01 00:00:00