Abstract:
:The regulation of atrial natriuretic peptide (ANP) synthesis within cardiac atrial myocytes was investigated in 8 patients undergoing cardiac surgery (valve replacement or coronary bypass graft). Hemodynamic data were obtained during cardiac catheterization and venous plasma samples for ANP were withdrawn prior to surgery. Probes for determination of tissue ANP levels and ANPmRNA concentrations were taken from the right atrium. Both plasma ANP (r = 0.75; P less than .05) and ANPmRNA (r = 0.86; P less than .01) were closely related to mean pulmonary artery pressure. ANPmRNA was also related to plasma ANP (r = 0.60; P less than .07). However, no significant relationships were obtained between either plasma ANP or ANPmRNA and right atrial ANP concentrations. These data suggest that right atrial ANP synthesis is regulated by cardiac filling pressures and possibly by plasma ANP levels, independent from corresponding ANP tissue concentrations.
journal_name
Am J Hypertensjournal_title
American journal of hypertensionauthors
Haass M,Fischer TA,Hänze J,Saggau W,Lang RE,Dietz Rdoi
10.1093/ajh/3.3.234subject
Has Abstractpub_date
1990-03-01 00:00:00pages
234-6issue
3eissn
0895-7061issn
1941-7225journal_volume
3pub_type
杂志文章abstract::We sought to determine whether reductions in blood pressure in hypertensives after acute exercise persist for more than the 2 to 3 h found in controlled laboratory settings. Subjects (n = 11) were obese (32 +/- 4% body fat), sedentary (VO2max 27 +/- 4 mL/kg/min) 60 +/- 6-year-old men with stage 1 or 2 essential hypert...
journal_title:American journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1016/s0895-7061(99)00141-7
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND:Ryanodine receptor (RyR) dysfunction in skeletal muscle (RyR1) leads to malignant hyperthermia, and in cardiac muscle (RyR2) triggers cardiac arrhythmias. We hypothesized that RyR dysfunction in vascular smooth muscle could increase vascular resistance and hypertension, and may contribute to increased atrial...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpaa021
更新日期:2020-04-29 00:00:00
abstract:BACKGROUND:Left ventricular (LV) concentric geometry and hypertrophy, depressed wall mechanics, and abnormal diastolic properties have been described in the diabetic heart. However, the cardiac response to dynamic exercise in diabetic patients remains controversial. The present study assessed strain rate (SR) imaging d...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2006.12.009
更新日期:2007-05-01 00:00:00
abstract::The role of renal sympathetic nerve activity (RSNA) in the maintenance phase of essential hypertension has not yet been clearly defined. Renal function and mean arterial pressure (MAP) were studied in four Yucatan miniature swine (YMS) with established DOCA hypertension prior to and for 3 weeks after surgical renal de...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/3.1.62
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:Although the acute increase of arterial stiffness and blood pressure (BP) after cigarette smoking in healthy smokers is considered a possible mechanism of increased cardiovascular risk, the acute effect of smoking on arterial stiffness in hypertensive smokers is unknown. We investigated the acute effects of ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2006.12.017
更新日期:2007-06-01 00:00:00
abstract::In a retrospective study we investigated the effects of altering treatment of type II diabetes mellitus from insulin to tolazamide on weight and blood pressure. In 17 patients, weight decreased from 136 +/- 6 to 131 +/- 6% of ideal body weight (P = .01). Even though weight loss occurred, mean systolic blood pressure i...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/0895-7061(95)00046-R
更新日期:1995-05-01 00:00:00
abstract::Several classes of antihypertensive drugs have been shown to improve vascular function through mechanisms other than reducing blood pressure (BP) alone. Certain dihydropyridine calcium channel blockers (CCBs) and inhibitors of the renin-angiotensin system (RAS) increase nitric oxide (NO) bioavailability and decrease o...
journal_title:American journal of hypertension
pub_type: 杂志文章,评审
doi:10.1038/ajh.2008.258
更新日期:2008-10-01 00:00:00
abstract:BACKGROUND:We have recently shown that the renin enhancer, a regulatory element of renin gene transcription, is important in the long-term control of basal blood pressure (BP). In this study, we examined whether the renin enhancer deficit alters the acute pressor response to emotional stress in mice. METHODS:Under flu...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2007.02.010
更新日期:2007-08-01 00:00:00
abstract::Surveys taken of blood pressure in Greenland indicated prevailing levels similar to those in the USA. Morphometrically measured renovasculopathies in 88 autopsies confirmed blood pressure levels comparable to the survey findings. At clinic visits, the recorded blood pressures in 48 of the autopsies verified the morpho...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/0895-7061(95)00440-8
更新日期:1996-06-01 00:00:00
abstract:BACKGROUND:Pulse pressure, a measure of central arterial stiffness and a predictor of cardiovascular mortality, has known genetic components. METHODS:To localize the genetic effects of pulse pressure, we conducted a genome-wide linkage analysis of 1,892 American-Indian participants of the Strong Heart Family Study (SH...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1038/ajh.2007.34
更新日期:2008-02-01 00:00:00
abstract:BACKGROUND:Epidemiologic analysis of family data on blood pressure (BP) is often compromised by the effects of antihypertensive medications. A review of numerous clinical trials that investigated the effects of BP-lowering medications is summarized here. METHODS:Published clinical trials, including 137 clinical trials...
journal_title:American journal of hypertension
pub_type: 杂志文章,meta分析
doi:10.1016/j.amjhyper.2005.01.011
更新日期:2005-07-01 00:00:00
abstract::Hypertensive renal injury is a major identifiable cause of end-stage renal disease in African-Americans. A complex nexus of sociologic, biologic, environmental, and sociocultural variables are involved in mediating this risk and interrelate with dietary salt consumption and salt sensitivity. It is likely that dietary ...
journal_title:American journal of hypertension
pub_type: 杂志文章,评审
doi:10.1016/0895-7061(95)00048-T
更新日期:1995-06-01 00:00:00
abstract::Hypertension is a common finding among obstructive sleep apnea (OSA) patients, and is thought to be caused by sympathetic hyperactivity. The present study compares the contributions of the respiratory disturbance index (RDI) as a reflection of sleep fragmentation, and the magnitude of oxygen desaturation, to sympathet...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(98)00159-9
更新日期:1998-11-01 00:00:00
abstract:BACKGROUND:Hypertension treatment is important in managing chronic renal insufficiency (CRI). Little is known, however, about the blood pressure (BP) control achieved or the pattern of antihypertensive drug prescription among CRI patients. METHODS:Using computerized medical records, we studied 3,089 adult hypertensive...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(01)02202-6
更新日期:2001-12-01 00:00:00
abstract::Recent findings related to the renin-angiotensin system have provided a more elaborated understanding of the pathophysiology of hypertension and kidney diseases. These findings have led to unique concepts and issues regarding the intrarenal renin-angiotensin system. Angiotensinogen is the only known substrate for reni...
journal_title:American journal of hypertension
pub_type:
doi:10.1016/j.amjhyper.2005.11.014
更新日期:2006-05-01 00:00:00
abstract::The effects of dietary Na+ on 5 alpha- and 5 beta-reductase pathways of aldosterone metabolism in the liver were studied in male rats maintained on low, control, and high Na+ diets. A high Na+ diet caused significant increases in the synthesis of 5 beta-reduced metabolites, primarily 3 alpha, 5 beta-tetrahydroaldoster...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/1.3.272
更新日期:1988-07-01 00:00:00
abstract:BACKGROUND:Schlager inbred hypertensive mice (BPH/2J) have been suggested to have high blood pressure (BP) due to an overactive sympathetic nervous system (SNS). The brain nuclei associated with the hypertension are also those involved in the integration of the cardiovascular responses to stress. Therefore, in the pres...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1038/ajh.2010.69
更新日期:2010-08-01 00:00:00
abstract::It is known that calcium induces the formation of potent vasodilators in endothelial cells and vasoconstriction in smooth muscle cells, whereas in the renal parenchyma, it modulates sodium excretion through vascular and tubular mechanisms. Consequently, an increased concentration of calcium in renal circulation may in...
journal_title:American journal of hypertension
pub_type: 杂志文章,评审
doi:10.1093/ajh/4.7.473s
更新日期:1991-07-01 00:00:00
abstract::Thromboembolic complications such as ischemic stroke and myocardial infarction are significantly more frequent in patients with arterial hypertension. From the available intervention studies, it appears that pharmacologic treatment of hypertension-at least with diuretics and beta-blockers-may more effectively protect ...
journal_title:American journal of hypertension
pub_type: 杂志文章,评审
doi:10.1016/s0895-7061(97)00496-2
更新日期:1998-03-01 00:00:00
abstract:BACKGROUND:Whether left ventricular (LV) geometric remodeling, as indexed by relative wall thickness (RWT), aggregates in families and is inherited independent of LV mass (LVM) and additional confounders is uncertain. METHODS:We determined whether RWT as assessed from 2D targeted M-mode echocardiography shows intrafam...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpu202
更新日期:2015-05-01 00:00:00
abstract:BACKGROUND:This study evaluated the effect of chronic sucrose feeding on hemodynamic parameters and renal sympathetic nervous activity. In addition, angiotensin I, II, and 1-7 levels were determined in plasma, heart, kidney, and the epididymal adipose tissue. METHODS:Male Wistar rats were treated for 30 days with 20% ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2007.01.014
更新日期:2007-06-01 00:00:00
abstract:BACKGROUND:Marinobufagenin (MBG) is an endogenous Na/K-ATPase inhibitor, a natriuretic and a vasoconstrictor. MBG is implicated in salt-sensitive hypertension, cardiac hypertrophy, and initiate the pro-fibrotic signaling. Previously it was demonstrated that immunoneutralization of an endogenous MBG by 3E9 anti-MBG-anti...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpv155
更新日期:2016-05-01 00:00:00
abstract::The objective of this study was to evaluate whether the major histocompatibility complex of the rat can be related to blood pressure (BP) level and BP response to stress. Blood pressure was determined under light ether anesthesia or during moderate restraint stress in normotensive Lewis rats, in rat strains congenic w...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/0895-7061(96)00023-4
更新日期:1996-07-01 00:00:00
abstract::The ambulatory blood pressure load is generally defined as the proportion of elevated systolic or diastolic pressures over a 24 h period. This value represents the chronic pressure overload that induces myocardial and vascular damage associated with the hypertensive disease process. Blood pressure load has been define...
journal_title:American journal of hypertension
pub_type: 杂志文章,评审
doi:10.1016/0895-7061(96)87761-2
更新日期:1996-10-01 00:00:00
abstract:BACKGROUND:Blood pressure (BP) and low-density lipoprotein cholesterol (LDL-C) are risk factors for coronary artery disease (CAD) and ischemic stroke. However, the hazards of their coexistence are not fully understood in Asian populations. We investigated whether the relationship between BP and cardiovascular disease (...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpu059
更新日期:2014-11-01 00:00:00
abstract:BACKGROUND:Blood pressure (BP) responses to dietary sodium and potassium intake vary among individuals. We examined the correlation between BP responses to dietary low-sodium, high-sodium, and potassium supplementation interventions in a feeding study. METHODS:A total of 1,906 Chinese aged > or = 16 years participated...
journal_title:American journal of hypertension
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1038/ajh.2009.176
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND:Large artery stiffness is increased in diabetes mellitus and causes an excessive pulsatile load to the heart and to the microvasculature. The identification of pathways related to arterial stiffness may provide novel therapeutic targets to ameliorate arterial stiffness in diabetes. Matrix Gla-Protein (MGP) i...
journal_title:American journal of hypertension
pub_type: 杂志文章,多中心研究
doi:10.1093/ajh/hpw146
更新日期:2017-02-01 00:00:00
abstract:BACKGROUND:The prevalence of childhood elevated blood pressure (BP) has increased in the United States, particularly among African Americans. The influence of maternal plasma folate levels, alone or in combination with maternal cardiometabolic risk factors (hypertensive disorders, diabetes, and prepregnancy obesity), o...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpx003
更新日期:2017-05-01 00:00:00
abstract::The influence of increased lability of blood pressure on the development of aortic atherosclerosis was examined. Because sinoaortic denervation (SAD) produced increased lability of blood pressure without blood pressure elevation, the development of atheromatous plaque was examined in SAD rats. These rats were fed a hi...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/7.5.453
更新日期:1994-05-01 00:00:00
abstract:BACKGROUND:Angiotensin-converting enzyme (ACE) inhibitors have been widely used in the treatment of hypertension, but the comparative effectiveness in reducing mortality among different drugs is seldom reported. METHODS:We identified hypertensive patients who started captopril, enalapril, lisinopril, fosinopril, perin...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpu237
更新日期:2015-06-01 00:00:00