Abstract:
OBJECTIVE:To determine whether acutely lowering insulin levels with somatostatin in obese, insulin-resistant hypertensive individuals reduces arterial pressure and forearm vascular resistance; and whether these changes are reversed by restoring insulin levels during continuing somatostatin infusion. SUBJECTS:Subjects were 11 obese (body mass index 36 +/- 4 kg/m2) insulin-resistant, hypertensive men (systolic/diastolic blood pressures 153 +/- 6/94 +/- 2 mmHg, aged 51 +/- 7 years, fasting insulin level 17 +/- 8 mU/l). METHODS:Arterial pressure, forearm blood flow and vascular resistance were measured during 2 h of somatostatin infusion and during 2h of somatostatin plus insulin infusion (hyperinsulinemic or euglycemic clamp). RESULTS:Somatostatin infusion decreased plasma insulin levels from 17 +/- 2 to <3 mU/l. Insulin infusion raised plasma insulin levels to 86 +/- 7 mU/l. The forearm vascular resistance decreased significantly during somatostatin infusion and increased significantly during infusion of somatostatin plus insulin. Somatostatin also caused small but significant reductions in arterial pressure whereas insulin infusion during somatostatin infusion increased arterial pressure. Control experiments in six obese hypertensives indicated that the changes in forearm vascular resistance (but not in arterial pressure) were caused neither by time nor by vehicle. Control studies in six young normotensives indicated that somatostatin does not block the vasodilator response to insulin previously demonstrated in this group. CONCLUSIONS:The present results suggest that insulin causes forearm vasoconstriction in obese, insulin-resistant hypertensive humans.
journal_name
J Hypertensjournal_title
Journal of hypertensionauthors
Gudbjörnsdottir S,Elam M,Sellgren J,Anderson EAsubject
Has Abstractpub_date
1996-01-01 00:00:00pages
91-7issue
1eissn
0263-6352issn
1473-5598journal_volume
14pub_type
杂志文章abstract:OBJECTIVE:Different radiologists may show considerable variation in their interpretation of renal angiograms. We therefore wished to establish the reliability of their interpretation. DESIGN:Assessment of the intra- and inter-observer agreement of the interpretation of renal angiograms. SETTING:Tertiary referral univ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199917120-00011
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVES:To discuss changes during the past decades in the prevalence and in the patterns of detection, treatment and control of arterial hypertension in the general Belgian population aged 25-64 years. DESIGN:Data from two cross-sectional cardiovascular disease risk factor surveys of the general population aged 25-...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199816030-00004
更新日期:1998-03-01 00:00:00
abstract:OBJECTIVE:Cardiovascular risk prediction is deemed fundamental and the assessment of organ damage is emerging as a potentially 'downstream' picture of individual risk. Our aim was to assess the feasibility and value of prediction of coronaropathy [coronary artery disease (CAD)] of integrated cardiovascular ultrasound e...
journal_title:Journal of hypertension
pub_type: 杂志文章,多中心研究
doi:10.1097/HJH.0000000000000543
更新日期:2015-06-01 00:00:00
abstract:INTRODUCTION:QT interval prolongation increases the risk of sudden death in several medical conditions. Patients with primary aldosteronism and salt-sensitive hypertension experience more cardiovascular events than those with normal-renin essential hypertension. QT interval prolongation might represent one of the risk ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/01.hjh.0000251908.93298.a0
更新日期:2006-12-01 00:00:00
abstract:OBJECTIVE AND DESIGN:Remodelling in the media and decreases in connexin (Cx) expression and size of endothelial cells occur in the caudal artery of spontaneously hypertensive rats (SHR). The objective of this study was to determine whether similar changes are found in the aorta and whether effects in both aorta and cau...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200502000-00014
更新日期:2005-02-01 00:00:00
abstract::Over the last few years, much progress has been made in understanding the genetic basis of primary aldosteronism. This has led to the diagnosis of the familial forms and has aided the understanding of the basis of sporadic forms of the disease. Such information can be exploited to improve the therapeutic approaches us...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/00004872-200404000-00001
更新日期:2004-04-01 00:00:00
abstract:OBJECTIVES:Brachial artery flow-mediated dilation (FMD) is a popular technique to examine endothelial function in humans. Identifying volunteer and methodological factors related to variation in FMD is important to improve measurement accuracy and applicability. METHODS:Volunteer-related and methodology-related parame...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001012
更新日期:2016-09-01 00:00:00
abstract:OBJECTIVE:Blood pressure (BP) increases both in winter and in the last trimester of pregnancy. Some interaction seems to exist between season and gestational age. The present study observed home BP values during pregnancy with adjustment for seasonal variation and gestational age. METHODS:We observed 10353 home BP mea...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e32831364a7
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVES:To review, on a genome-wide scale, a linkage result obtained in an earlier candidate gene analysis in this same study sample, and to look for other possible contributing genetic loci predisposing to hypertension in this population. DESIGN:An affected sibpair linkage study with highly polymorphic genetic mar...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200018110-00008
更新日期:2000-11-01 00:00:00
abstract::The benefit of blood pressure-lowering therapy in individuals with normal blood pressure who are at high cardiovascular risk creates a challenge in how best to advocate such therapy. Arguments based on a putative causal role for blood pressure and the need to reduce blood pressure may be less likely to succeed than ar...
journal_title:Journal of hypertension
pub_type: 社论
doi:10.1097/HJH.0b013e3280127961
更新日期:2007-05-01 00:00:00
abstract:OBJECTIVES:To assess the expression of early cardiac genes, implicated in the hypertrophic growth response of the adult heart, in peripheral blood mononuclear cells in patients with essential hypertension and its relationship to ambulatory blood pressure monitoring (ABPM) parameters and to echocardiographic left ventri...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3283424bc4
更新日期:2011-04-01 00:00:00
abstract:OBJECTIVE:The objective of the present studies is to investigate if the enhanced expression of Gs alpha protein and their mRNA observed in various models of hypertensive rats is due to the expressed hypertrophy or hypertension. METHODS:Hypertension, in Sprague-Dawley rats was induced by the oral administration of the ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200018080-00013
更新日期:2000-08-01 00:00:00
abstract:OBJECTIVE:Considering the growing body of evidence that indicates the contribution of superoxide anions (O2) and other reactive oxygen species (ROS) to the development of hypertension, we assessed whether animal models of hypertension have a benefic effect with tempol, a superoxide dismutase mimetic, to help augment th...
journal_title:Journal of hypertension
pub_type: 杂志文章,meta分析,评审
doi:10.1097/HJH.0000000000000422
更新日期:2015-01-01 00:00:00
abstract:AIM:Studies addressing the association between a reduced drop of heart rate (HR) at night with subclinical organ damage and cardiovascular events in the general population are scanty. We evaluated this issue in individuals enrolled in the Pressioni Monitorate E Loro Associazioni study. METHODS:At entry, 2021 individua...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001703
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVE:To investigate the effect of angiotensin II on cyclooxygenase-2 (COX-2) expression in aortic adventitial fibroblasts from normotensive [Wistar-Kyoto (WKY)] rats and spontaneously hypertensive rats (SHRs). METHODS:Protein expression was determined by western blot, mRNA levels by real-time PCR, transcriptional...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/hjh.0b013e328317a730
更新日期:2009-01-01 00:00:00
abstract:AIMS:Selenium is an antioxidant micronutrient with potential associations with hypertension. Few studies have investigated the association of serum selenium concentrations with blood pressure and hypertension in countries with low dietary selenium intake such as Germany, with inconsistent findings. METHODS:We undertoo...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e32835414df
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVE:Experimental data show that ouabain is a modulator of the sodium-potassium pump, which plays an important role in sodium homeostasis and blood pressure regulation. We investigated the distribution of plasma ouabain in the general population in relation to blood pressure and other determinants of sodium homeos...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200308000-00010
更新日期:2003-08-01 00:00:00
abstract:OBJECTIVE:To investigate whether nondipping and diabetes are independently related to metabolic risk profile and prevalence of target organ damage in a population setting. METHODS:A population-based cohort of 70-year-old men (n = 1057) was examined with 24-h ambulatory blood pressure monitoring, euglycemic hyperinsuli...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200208000-00011
更新日期:2002-08-01 00:00:00
abstract:BACKGROUND:The sleep apnea syndrome (SAS) is a common health problem with a 30% prevalence among patients with so-called essential hypertension. OBJECTIVE:Prompted by this epidemiologic link we tried to find out whether there is a cause-effect relationship between SAS and systemic hypertension. DESIGN:We developed an...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199715120-00060
更新日期:1997-12-01 00:00:00
abstract:OBJECTIVE:The optimal time to initiate antihypertensive therapy among patients with acute ischemic stroke remains uncertain. We tested the effects of blood pressure reduction among patients with acute ischemic stroke according to time from onset to initiation of antihypertensive treatment. METHODS:We randomly assigned...
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.0000000000001288
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:We examined the effects of a calcium antagonist and an angiotensin converting enzyme (ACE) inhibitor on contractile and non-contractile protein metabolism and cardiac function in a monocrotaline-induced right ventricular hypertrophy model, in order to define the effects of these drugs on cardiac hypertrophy. ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1994-10-01 00:00:00
abstract:BACKGROUND:Elevated plasma glucocorticoid level is an independent predictor of increased mortality risk in chronic heart failure, but local biosynthesis and pathophysiological roles of glucocorticoids in the heart remain unclear. METHODS:Dahl salt-sensitive rats on high-salt diet and mice with transthoracic aortic ban...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328326cb04
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Patients with type-2 diabetes have a high prevalence of hypertension and show an elevated incidence of cardiovascular events and nephropathy. OBJECTIVES:Recent randomized trials of antihypertensive therapy providing information about cardiovascular and renal risk in diabetes, blood pressure goals and best s...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/00004872-200211000-00001
更新日期:2002-11-01 00:00:00
abstract::Recently, there has been an explosion of knowledge on vasopressin, including its neuro-anatomy, biochemistry and physiology. Recent work demonstrates extensive extra-hypothalamic vasopressinergic projections from the SON and PVN. Of particular importance are projections to the cardiovascular medullary centres. Convers...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/00004872-198512000-00001
更新日期:1985-12-01 00:00:00
abstract:BACKGROUND:Bradykinin is a potent cardioprotective hormone, the beneficial role of which in vivo appears to be limited by its rapid metabolism. Inhibitors of peptidases that degrade endogenously formed bradykinin are themselves cardioprotective, presumably by increasing local bradykinin concentrations. As bradykinin-de...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200107000-00015
更新日期:2001-07-01 00:00:00
abstract::To establish the role of angiotensin converting enzyme inhibitors in the management of hypertension in the elderly, 16 patients were treated with captopril in a randomized double-blind placebo-controlled cross-over study. Clinic blood pressure, ambulatory blood pressure, renal function and mental performance, with emp...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1989-04-01 00:00:00
abstract:OBJECTIVE:To determine the role of current weight in mediating the relationship between birth weight and blood pressure within the context of the 'fetal origins' hypothesis. DESIGN:Prospective cohort study of 2507 pregnant women and their singleton offspring, delivered live at term, in Perth, Western Australia between...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1097/00004872-200018080-00003
更新日期:2000-08-01 00:00:00
abstract::Many physiological variables known or thought to affect erythrocyte Na+,K+-cotransport are altered in pregnancy. The interrelationships of Na+,K+-cotransport and pregnancy were therefore examined. Values were elevated by more than 30% in both second and third trimesters with a return towards non-pregnant levels in the...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1988-02-01 00:00:00
abstract::Angioplasty of renal artery stenosis has been used extensively in the last two decades for treating renovascular hypertension, and, more recently, for preserving the jeopardized renal function. A large body of evidence has accumulated indicating that this approach is by far the most convenient for patients with fibrom...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/00004872-199917120-00001
更新日期:1999-12-01 00:00:00
abstract:BACKGROUND:Left-ventricular hypertrophy (LVH) is a marker of organ damage in hypertension and helps stratifying cardiovascular risk. Initial left-ventricular mass (LVM) is also a predictor of progression to hypertension, independently of initial blood pressure (BP) and other confounders. OBJECTIVES:To evaluate whether...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328343ce32
更新日期:2011-04-01 00:00:00