Abstract:
OBJECTIVES:To determine whether 'slow pressor' hypertension from systemic angiotensin (Ang II) infusion was associated with renal vascular structural remodeling of the renal resistance vessels and glomerulus. METHODS:Ang II (4.5-10 ng/kg per min) or vehicle was infused for 10 days. Renal resistance vascular lumen changes were assessed at 10 days as changes in renal pressure flow and pressure-glomerular filtration rate (GFR) and pressure-Na+ excretion in maximally dilated, isotonically perfused kidneys. RESULTS:Low-dose, initially subpressor Ang II infusion for 10 days increased conscious arterial pressure by 27 mmHg compared to vehicle-infused rats (140 +/- 7 and 113 +/- 2 mmHg, respectively). There was no change in the pressure-flow relationship but the slope of the pressure-GFR relationship was reduced in the rats treated with Ang II. These changes are consistent with equal and opposite pre-and post-glomerular effects (i.e., increased pre-glomerular vessel resistance and reduced post-glomerular vessel resistance) and reduced glomerular ultrafiltration coefficient. There was also a significant reduction in pressure-dependent Na+ excretion. CONCLUSIONS:Slow pressor Ang II-induced hypertension was associated with apparent pro-hypertensive changes in the kidney involving pre/post-glomerular vessel remodeling as indicated by an apparent reduction in pre-glomerular lumen dimensions, a reduced glomerular filtration capacity and a reduction in the pressure natriuresis relationship.
journal_name
J Hypertensjournal_title
Journal of hypertensionauthors
Edgley AJ,Kett MM,Anderson WPdoi
10.1097/00004872-200307000-00031subject
Has Abstractpub_date
2003-07-01 00:00:00pages
1401-6issue
7eissn
0263-6352issn
1473-5598journal_volume
21pub_type
杂志文章abstract:BACKGROUND:Ambulatory blood pressure (BP) monitoring (ABPM) detects subjects with normal clinic but high ambulatory 24-h BP, that is, masked hypertension. METHODS:One hundred and thirty newly diagnosed obstructive sleep apnea syndrome (OSAS) patients, free of recognized cardiovascular disease were included (111 men, a...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3282f55049
更新日期:2008-05-01 00:00:00
abstract:OBJECTIVES:To assess the impact of various criteria used to define hypertension in community surveys on estimates of prevalence, treatment and control. In particular, this paper examines the effect of using mean versus minimum values; one, two or three examinations; and three different blood pressure levels. DESIGN:A ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199715030-00004
更新日期:1997-03-01 00:00:00
abstract:OBJECTIVE:To examine a possible involvement of a regulatory protein of Na+/H+ exchanger (NHE) in the increased renal NHE activity in spontaneously hypertensive rats (SHR), we investigated mRNA expression of inhibitory members of the NHE regulatory protein family, NHERF1 and NHERF2, in the kidney. DESIGN:Prehypertensiv...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200409000-00016
更新日期:2004-09-01 00:00:00
abstract:OBJECTIVE:To compare the elastic properties of the ascending aorta and ventricular-arterial coupling (VAC) in women with a previous pregnancy complicated by hemolysis, elevated liver enzymes, and low platelets (HELLP) syndrome, women who experienced preeclampsia, and healthy controls. METHODS:Women with a history of p...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001888
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVES:Renal tubular sodium handling was measured in healthy subjects submitted to acute and chronic salt-repletion/salt-depletion protocols. The goal was to compare the changes in proximal and distal sodium handling induced by the two procedures using the lithium clearance technique. METHODS:In nine subjects, acu...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004872-200018110-00018
更新日期:2000-11-01 00:00:00
abstract::The European Society of Hypertension and the European Society of Cardiology have started the preparation of the third edition of their joint guidelines on the management of arterial hypertension. The authors have focused on the new edition of the UK NICE guidelines to learn about the difficulties of disentangling evid...
journal_title:Journal of hypertension
pub_type: 社论
doi:10.1097/HJH.0b013e328351b4e4
更新日期:2012-04-01 00:00:00
abstract:RATIONALE:Cicletanine (CIC), an anti-hypertensive compound with direct vascular and natriuretic actions, is especially effective in salt-sensitive hypertension, in which dysregulation of the sodium pump plays an important pathogenic role, and digitalis-like cardiotonic steroids contribute to increased vascular tone. Th...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200018020-00012
更新日期:2000-02-01 00:00:00
abstract::Endothelin-1 was infused into the non-dominant brachial artery in two male subjects. We then monitored intra-arterial mean blood pressure, right atrial pressure, the heart rate and forearm blood flow (by plethysmography). Endothelin-1 at a dose of 5 x 10(-14) to 5 x 10(-9) mol, infused over 5 min periods, elicited no ...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1097/00004872-199009000-00004
更新日期:1990-09-01 00:00:00
abstract:OBJECTIVE:Cardiac hypertrophy arises as an adaptive response to increased afterload. Studies in knockout mice have shown that catecholamines, but not alpha1-adrenergic receptors, are necessary for such an adaptation to occur. However, whether beta-adrenergic receptors are critical for the development of cardiac hypertr...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/01.hjh.0000203843.41937.2a
更新日期:2006-03-01 00:00:00
abstract:OBJECTIVES:Recent epidemiological studies have reported inverse associations between vitamin D status and blood pressure. The study aim is to determine if exposure to ultraviolet B radiation, which synthesizes vitamin D, lowers blood pressure, compared with ultraviolet A radiation. METHODS:Men and women (n = 119) with...
journal_title:Journal of hypertension
pub_type: 杂志文章,随机对照试验
doi:10.1097/HJH.0b013e328349666d
更新日期:2011-09-01 00:00:00
abstract::Systolic (SBP), diastolic (DBP) and mean [MBP = diastolic + 1/3 (systolic - diastolic)] blood pressures were compared as predictors of all causes of death (ALL) and of deaths from atherosclerotic cardiovascular disease (ACVD) in 2480 men, aged 40-59 years, belonging to three cohorts followed up for 20 years. Both univ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-198907000-00011
更新日期:1989-07-01 00:00:00
abstract::Reduction of large artery distensibility has several adverse consequences for the cardiovascular system. This paper reviews the evidence obtained by measuring distensibility through quantification of changes in arterial diameter versus blood pressure changes at large elastic and middle size muscle artery sites. Eviden...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/00004872-200210000-00001
更新日期:2002-10-01 00:00:00
abstract:OBJECTIVES:To compare the reproducibility of clinic and ambulatory blood pressure measurements in elderly hypertensive subjects. SUBJECTS:Twenty-two untreated elderly hypertensives, with a clinic systolic blood pressure (SBP) > 160 mmHg and/or diastolic blood pressure (DBP) > 95 mmHg, and a mean age of 76 years (range...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199305000-00014
更新日期:1993-05-01 00:00:00
abstract::Nitric oxide formed by neuronal nitric oxide synthase (nNOS) in the brain, autonomic inhibitory (nitrergic) nerves, and heart plays important roles in the control of blood pressure. Activation of nitrergic nerves innervating the systemic vasculature elicits vasodilatation, decreases peripheral resistance, and lowers b...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/HJH.0b013e32832e8ddf
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:Choice of antihypertensive drugs is also based on the expected burden of adverse events associated with each class of agents, and we have recently identified treatment discontinuation for adverse events as a measure of treatment tolerability frequently reported in randomized controlled trials (RCTs). OBJECT...
journal_title:Journal of hypertension
pub_type: 杂志文章,meta分析,评审
doi:10.1097/HJH.0000000000001052
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVE:To determine whether obese hypertensive patients manifest a diminished regional vasodilator response to an oral glucose challenge. METHODS:Nineteen obese hypertensives (body mass index 34.1 +/- 1.3 kg/m2, blood pressure 144 +/- 3/96 +/- 2 mmHg) and 13 lean controls (23.6 +/- 0.3 kg/m2, 127 +/- 4/83 +/- 3 mmH...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1994-09-01 00:00:00
abstract:OBJECTIVE:Using an aortic constriction model in mice, we studied whether the increase in pressure or the activation of the renin-angiotensin system (RAS) and its main receptors is the main driving force for plaque progression. METHODS:Male ApoE mice underwent sham surgery or placement of a suprarenal silver clip aroun...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/01.hjh.0000244949.65040.de
更新日期:2006-10-01 00:00:00
abstract::Conscious male beagle dogs were given constant intravenous infusions of noradrenaline for 14 days, four receiving 125 ng/kg/min and four 250 ng/kg/min. Before, during and after these infusions dose-response studies were done in which additional noradrenaline was infused at 500, 1000 and 2000 ng/kg/min, each rate for 1...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1983-06-01 00:00:00
abstract:OBJECTIVE:To determine the relationship between endothelin-1 (ET-1), human atrial natriuretic peptide (hANP), plasma-renin activity (PRA) and 24-h urinary excretion of aldosterone (U-Ald) in pregnancy-induced hypertension (PIH). DESIGN AND METHODS:Plasma hANP (pg/ml), ET-1 (pg/ml), PRA (ng/ml per h) and U-Ald (microg/...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1097/00004872-199917090-00012
更新日期:1999-09-01 00:00:00
abstract:BACKGROUND:Childhood hypertension is an established predictor of adult hypertension and organ damage, an underestimated problem in developing countries. The aim of the study was to assess the prevalence of arterial hypertension, as well as the relationship of blood pressure values and weight class and urinary abnormali...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3283407fe3
更新日期:2011-02-01 00:00:00
abstract:PURPOSE:To study the feasibility of vascular mechanics at the aortic arch with two-dimensional speckle tracking echocardiography, as well as to define normal values and to compare results between hypertensive patients and healthy patients. METHODS:We included 107 patients (61 healthy patients and 46 hypertensive patie...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001336
更新日期:2017-07-01 00:00:00
abstract:OBJECTIVE:The pathogenesis of nonalcoholic fatty liver disease (NAFLD) is multifactorial, and the presence of insulin resistance is recognized as the pathophysiological hallmark of this condition. Arterial hypertension is referred as an insulin-resistant state, and insulin resistance may substantially contribute to the...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e32830dfe4b
更新日期:2008-11-01 00:00:00
abstract:OBJECTIVE:To test the hypothesis that vascular beta 2-adrenoceptor hyporesponsiveness in spontaneously hypertensive rats (SHR) is not induced by increased blood pressure or venous hypertrophy. DESIGN:We compared the attenuating effects or isoprenaline, sodium nitroprusside and verapamilon the portal veins from Wistar-...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199509000-00013
更新日期:1995-09-01 00:00:00
abstract:OBJECTIVE:To investigate the effect of angiotensin-converting enzyme inhibitors and angiotensin II receptor blockers on pneumonia hospitalization in patients with stroke history in Taiwan. METHODS:We conducted a case-crossover study using the National Health Insurance Research Database in Taiwan during the period from...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328357a87a
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVES:Female sexual dysfunction (FSD) is increasingly attracting more scientific and public interest, and represents a poorly investigated issue in patients with essential hypertension. We evaluated the prevalence of sexual dysfunction in hypertensive women compared with normotensive women according to age, hypert...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/01.hjh.0000251898.40002.5b
更新日期:2006-12-01 00:00:00
abstract:BACKGROUND:The screening for primary aldosteronism is based on the aldosterone-renin ratio calculated with the plasma renin activity (PRA) value as denominator. A direct measurement of active renin (DRA) is being used as an alternative to PRA, but its diagnostic performance remains unclear. METHOD:We, therefore compar...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e32833d2192
更新日期:2010-09-01 00:00:00
abstract:OBJECTIVES:To assess the predictive role of changes in albuminuria on the loss of renal function under antihypertensive treatment in patients with type 2 diabetes (T2D). METHODS:Clinical records from a total of 12 611 patients with hypertension and T2D, attending 100 antidiabetic centers in Italy, with normal estimate...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001749
更新日期:2018-08-01 00:00:00
abstract:OBJECTIVES:When assessing arterial stiffness, heart rate (HR) and blood pressure (BP) are potential confounders. It appears that the HR/BP dependences of pulse wave velocity (PWV) and distensibility are different, even though both assess arterial stiffness. This study aims to compare aortic PWV as measured using pulse ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000002608
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVE:Night-time ambulatory blood pressure (nABP) is the most important aspect of the blood pressure profile in terms of prognosis. Novel low-cost home monitors allow automated night-time blood pressure monitoring (nHBP). This study reviewed the evidence on the association of nHBP with nABP and preclinical organ da...
journal_title:Journal of hypertension
pub_type: 杂志文章,meta分析,评审
doi:10.1097/HJH.0000000000001189
更新日期:2017-03-01 00:00:00
abstract:OBJECTIVE:Hypertension and fractures related to osteoporosis are major public health problems that often coexist. This study examined the associations between exposure to different antihypertensive drug classes and the risk of hip fracture in hypertensive patients. METHOD:We included 59 246 individuals, 50 years and o...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000002245
更新日期:2020-01-01 00:00:00