Abstract:
:We have studied the effect of parathyroidectomy on the systolic blood pressure, cardiovascular reactivity and the contractile response of isolated aorta to norepinephrine in the genetically hypertensive Lyon rat strain (LH), parathyroidectomized hypertensive Lyon rats (LH-PTX) and parathyroidectomized hypertensive Lyon rats given a Ca-enriched diet to re-establish normocalcemia (LH-PTX + Ca). Parathyroidectomy significantly lessened (-20%) the development of elevated blood pressure. In the LH-PTX + Ca, the blood pressure was lower than that of LH controls but was higher than that of LH-PTX. At 23 weeks, in vivo responsiveness to norepinephrine and angiotensin II was significantly lower in the LH-PTX and only slightly decreased in the LH-PTX + Ca. In contrast, at the same age, the in vitro contractile response of isolated aortas to norepinephrine was significantly higher in the LH-PTX compared with other groups. Interestingly, without endothelium, this difference disappeared. In conclusion, parathyroidectomy lessened the blood pressure elevation in the Lyon model of hypertensive rats via mechanisms that are partly independent of serum calcium levels.
journal_name
J Hypertensjournal_title
Journal of hypertensionauthors
Pernot F,Schleiffer R,Vincent M,Sassard J,Gairard Adoi
10.1097/00004872-199012000-00007subject
Has Abstractpub_date
1990-12-01 00:00:00pages
1111-7issue
12eissn
0263-6352issn
1473-5598journal_volume
8pub_type
杂志文章abstract:OBJECTIVE:Spontaneously hypertensive rats (SHR) are sensitive to a high salt intake and we investigated the question of whether flow-induced dilation is affected by this type of diet, as flow responses are especially sensitive to small changes in extracellular sodium concentrations. METHODS:We evaluated the effects of...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199816100-00013
更新日期:1998-10-01 00:00:00
abstract:OBJECTIVE:The present study was designed to investigate the effect of nicardipine administration upon systolic blood pressure (SBP) and cardiac hypertrophy in spontaneously hypertensive rats (SHR). DESIGN:SBP, heart: and left ventricle: body weight ratios, the cross-sectional area of cardiocytes, and the ultrastructur...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199206000-00002
更新日期:1992-06-01 00:00:00
abstract:OBJECTIVE:Phenotypic transformation of adventitial fibroblasts is important in the pathogenesis of hypertension. This study was designed to determine whether fibronectin type III domain containing 5 (FNDC5) alleviates the phenotypic transformation of adventitial fibroblasts in hypertension and the underlying mechanisms...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001654
更新日期:2018-05-01 00:00:00
abstract::Use of the aldosterone-to-renin ratio has controversially suggested that approximately 10% of hypertensives have primary aldosteronism, and most of these individuals are thought to have idiopathic hyperaldosteronism. The usual renin-angiotensin system control is intact in these individuals and is similar to that in lo...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/00004872-200201000-00003
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:Reductions in albuminuria of more than 30% are considered a strong marker of delay of chronic kidney disease (CKD) progression. Single renin-angiotensin system (RAS) blockade represents the cornerstone of CKD treatment. However, as CKD progression still occurs, other nephroprotective options were explored; m...
journal_title:Journal of hypertension
pub_type: 杂志文章,meta分析
doi:10.1097/HJH.0000000000002187
更新日期:2019-12-01 00:00:00
abstract::To determine the role of the parasympathetic system in the development of essential hypertension, the concentrations of acetylcholine (ACh) as a parasympathetic marker and norepinephrine (NE) as a sympathetic marker were measured simultaneously in the heart of spontaneously hypertensive rats (SHR) at 4, 10 and 27 week...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-198706000-00010
更新日期:1987-06-01 00:00:00
abstract:OBJECTIVE:To examine the association between the graded exercise systolic blood pressure (SBP) response and left ventricular (LV) geometric structure in patients with untreated mild hypertension. PARTICIPANTS:The study included 80 sedentary, overweight patients (43 female and 37 male) with unmedicated high normal bloo...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200402000-00026
更新日期:2004-02-01 00:00:00
abstract:OBJECTIVES:To explore the association of different types of blood pressure (BP) variability measures estimated from either short-term ambulatory reading-to-reading or long-term clinic visit-to-visit BP records with long-term survival in an elderly treated hypertensive population. METHODS:A subset of patients (n = 508)...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001652
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVES:Mean blood pressure varies moderately with outdoor air temperature in many western populations. Substantial uncertainty exists, however, about the strength of the relationship in other populations and its relevance to age, adiposity, medical treatment, climate and housing conditions. METHODS:To investigate ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e32835465b5
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to identify the time of blood pressure (BP) drop in the orthostatic hypotension test, and to propose a realistic and appropriate duration in the orthostatic hypotension test. METHODS:A total of 879 consecutive patients (61-year-old and 44% women) with positive on the orthostatic...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000002554
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:Molecular variants of the angiotensinogen (AGT) and the angiotensin II type 1 receptor (ATR) genes have been associated with the risk of coronary artery disease (CAD) and myocardial infarction (MI), but data so far available are conflicting. The primary object of the paper is to verify this possible associati...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200105000-00007
更新日期:2001-05-01 00:00:00
abstract:OBJECTIVES:Increased endothelial production of reactive oxygen species and decreased nitric oxide bioactivity, associated with the upregulation of monocyte chemoattractant protein (MCP)-1 and lectin-like oxidized low-density lipoprotein receptor (LOX)-1, link hypertension with atherogenesis. We investigated whether the...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3282f3e39d
更新日期:2008-03-01 00:00:00
abstract::Predictive value of arterial stiffness in cardiovascular disease has been recognized for many decades. Carotid-femoral pulse wave velocity (cfPWV), as a noninvasive measurement, has been recommended as a gold standard of arterial stiffness, and we believe that this surrogate of arterial stiffness has been refined to t...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/HJH.0000000000000187
更新日期:2014-08-01 00:00:00
abstract:OBJECTIVES:Previous studies have demonstrated that the time rate of blood pressure (BP) variation was associated with early carotid atherosclerosis, independent of peripheral and central BP levels. We evaluated the association between the rate of BP variation, derived from ambulatory BP monitoring (ABPM) data analysis,...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3283454ff4
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVES:Endothelial dysfunction is established in aged individuals; however, the mechanism(s) are not fully elucidated. We have previously identified l-arginine transport as a potential rate-limiting factor in nitric oxide (NO) production in heart-failure patients, characterized with endothelial dysfunction. We ther...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1097/00004872-200402000-00016
更新日期:2004-02-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Although 24-h urinary measure to estimate sodium and potassium excretion is the gold standard, it is not practical for large studies. We compared estimates of 24-h sodium and potassium excretion from a single morning fasting urine (MFU) using three different formulae in healthy individuals. M...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000000122
更新日期:2014-05-01 00:00:00
abstract:OBJECTIVES:This controlled trial assessed the effect of continuous positive airway pressure (CPAP) on blood pressure (BP) in patients with obstructive sleep apnea (OSA) and resistant hypertension (RH). METHODS:We evaluated 96 patients with resistant hypertension, defined as clinic BP at least 140/90 mmHg despite treat...
journal_title:Journal of hypertension
pub_type: 杂志文章,随机对照试验
doi:10.1097/HJH.0b013e32833b9c63
更新日期:2010-10-01 00:00:00
abstract:BACKGROUND:Across ethnicities, offspring of hypertensive parents (OH) have higher risk of hypertension than offspring of normotensive parents (ON). Sympathetic hyperactivity and reduced nitric oxide availability have been reported in normotensive OH; but the role of vasodilator cyclooxygenase (COX) products is unclear....
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001794
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVE:An excess morning blood pressure surge (MBPS) may portend an increased cardiovascular risk, but the mechanisms thereof have been little investigated. The link between MBPS, short-term blood pressure (BP) variability, and arterial stiffness has not been entirely defined. METHODS:In 602 consecutive untreated h...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001153
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:To estimate the compliance rate and associated factors among a population of hypertensive subjects registered in hospitals and primary health care centres. DESIGN:A prospective study carried out on a sample of hypertensive subjects. METHOD:Compliance with treatment by the study sample was measured using the...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199715050-00013
更新日期:1997-05-01 00:00:00
abstract::BMI represents an internal metabolic and physiological environment that plays a key role in development of high blood pressure (BP) for many Americans. African-American women have a higher prevalence of high BP and being overweight than men or other ethnic groups. This study examines the genetic-environmental interact...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3283110402
更新日期:2008-12-01 00:00:00
abstract::Precapillary resistance arteries from spontaneously hypertensive rats (SHR) and Wistar-Kyoto normotensive rats (WKY) were found to contain three inositol lipids and to produce five inositol phosphate peaks. These were assessed by a highly sensitive procedure which involved the separation of radiolabelled inositol-cont...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199006000-00009
更新日期:1990-06-01 00:00:00
abstract::Seventeen essential hypertensive patients with normal renal function were treated with a new non-sulphydryl orally active angiotensin converting enzyme (ACE) inhibitor, benazepril, 10 mg given once or twice daily, according to diastolic blood pressure levels, for 6 weeks. In all patients, changes in blood pressure, sy...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199011000-00003
更新日期:1990-11-01 00:00:00
abstract:OBJECTIVE:Age, hypertension, diabetes mellitus and a history of cardiovascular disease are the most important factors related to the presence of cerebral white matter lesions (WML), which are a common finding in elderly people. This study investigates which factors related to hypertension per se are associated with the...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200203000-00028
更新日期:2002-03-01 00:00:00
abstract::Twenty-four adolescent boys with a positive and 40 boys with a negative parental history of hypertension (PH+ and PH-, respectively) were studied at rest and during exercise on a bicycle ergometer at work loads ranging from 25 to 150 W. Each group was divided into fit and unfit categories on the basis of oxygen consum...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1988-05-01 00:00:00
abstract:OBJECTIVE:Reduction in capillary density or rarefaction is a hallmark of essential hypertension. We measured the retinal capillary density using noninvasive optical coherence tomographic angiography (OCT-A) in adults with treated systemic hypertension and determined possible correlations with ambulatory blood pressure ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001916
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVES:To assess the consequences of malignant hypertension and its evolution with antihypertensive treatment. BACKGROUND:Malignant hypertension can be considered as a model of the effects of very high blood pressure and renin-angiotensin levels on target organs. However, the consequences on the heart have been li...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3283430b12
更新日期:2011-04-01 00:00:00
abstract:OBJECTIVES:The long-term consequences of extreme prematurity are becoming increasingly important, given recent improvements in neonatal intensive care. The aim of the current study was to examine the cardiovascular consequences of extreme prematurity in 11-year-olds born at or before 25 completed weeks of gestation. M...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328347e333
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND:Some patients with essential hypertension manifest greater than normal urinary excretion of albumin (UAE). Authors of a few retrospective studies have suggested that there is an association between microalbuminuria and cardiovascular risk. OBJECTIVE:To evaluate whether microalbuminuria is associated with a ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199816090-00014
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVE:To investigate the effect of cyclosporine A (CsA; Sandimmun Neoral) on systemic and renal hemodynamics, tubular function, and sodium excretion in healthy volunteers. Furthermore, we studied whether CsA enhances the systemic and renal hemodynamic sensitivity to norepinephrine. METHODS:Eighteen healthy volunte...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004872-199715030-00014
更新日期:1997-03-01 00:00:00