Abstract:
:The aim of this study was to assess whether an interaction exists between the renin-angiotensin system and the sympathetic nervous system at the level of the adrenal medulla during insulin-induced hypoglycemia in normal humans. Seventeen healthy volunteers were studied in a randomized, single-dose, double-blind, cross-over fashion using 25 mg captopril v placebo followed by an intravenous injection of 0.15 IU/kg insulin. Blood samples were obtained before and at 15 min intervals after insulin injection. Both plasma glucose level and heart rate were identical during captopril and placebo at rest and after insulin. Plasma renin activity increased after insulin and captopril. The increase in plasma epinephrine was lower after insulin and captopril compared to after insulin and placebo. Likewise the increase in plasma norepinephrine was blunted on insulin and captopril. Thus, when the generation of angiotensin II was blocked by captopril the insulin-induced rise in epinephrine and norepinephrine was blunted. This indicates that an interaction exists between the renin-angiotensin system and the sympathoadrenal system.
journal_name
Am J Hypertensjournal_title
American journal of hypertensionauthors
Madsen BK,Hølmer P,Ibsen H,Christensen NJdoi
10.1093/ajh/5.6.361subject
Has Abstractpub_date
1992-06-01 00:00:00pages
361-5issue
6 Pt 1eissn
0895-7061issn
1941-7225journal_volume
5pub_type
临床试验,杂志文章,随机对照试验abstract::This study was designed to evaluate the impact of the protocol-driven antihypertensive therapy on outcomes guided by the Joint National Committee (JNC) on Detection, Evaluation, and Treatment of high blood pressure. In a systematic hypertension control program for union employees conducted in New York City, untreated ...
journal_title:American journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1016/0895-7061(95)00438-6
更新日期:1996-05-01 00:00:00
abstract::In a randomized double-blind, placebo-controlled, crossover study of isradipine (5 mg twice daily), effects on peripheral hemodynamic reflex responses were studied in nine patients (mean age 48 years) at baseline and after six weeks of active treatment. Assessments included vital signs, resting blood flow in the calf ...
journal_title:American journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1093/ajh/4.2.194s
更新日期:1991-02-01 00:00:00
abstract:BACKGROUND:Determinants of exercise capacity have not been clearly defined in hypertensive patients. Doppler tissue imaging (DTI), a recently developed echocardiographic modality, is useful for evaluating left ventricular (LV) function regardless of loading conditions. The present study was performed to identify the de...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(03)00842-2
更新日期:2003-07-01 00:00:00
abstract:BACKGROUND:Myocardial infarction (MI) is commonly associated with cardiac hypertrophy, reduced Ca²(+) uptake into the sarcoplasmic reticulum (SR) and impaired myocardial relaxation. Treatment to prevent MI-associated complications is currently lacking. The purpose of the present study was to investigate the remodeling ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1038/ajh.2010.157
更新日期:2010-11-01 00:00:00
abstract:BACKGROUND:Type B acute aortic dissection (AAD) carries a high short- and midterm mortality rate; however, knowledge related to long-term outcome is largely incomplete. The objective of this study was to identify long-term predictors including antihypertensive medications in type B AAD. METHODS:We conducted a clinical...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1038/ajh.2009.5
更新日期:2009-04-01 00:00:00
abstract::The present study was designed to investigate the role of the autonomic nervous system in experimental hypertension induced by chronic administration of N-nitro-L-arginine methyl ester (L-NAME) in the drinking water (1 mg/mL) over 6 days. L-NAME ingestion caused a large rise in resting mean arterial pressure (MAP) (17...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/6.9.806
更新日期:1993-09-01 00:00:00
abstract::Experimental research using in vitro and in vivo models of vascular injury have delineated several common mechanisms that characterize the arterial damage in diseases such as atherosclerosis and hypertension. Changes in endothelial permeability, smooth muscle cell proliferation, and accumulation of connective tissue m...
journal_title:American journal of hypertension
pub_type: 杂志文章,评审
doi:10.1093/ajh/2.3.205
更新日期:1989-03-01 00:00:00
abstract:BACKGROUND:We aimed to assess the predictive value of circulating levels of des-acyl ghrelin, an abundant form of ghrelin in humans, for the risk of cardiovascular disease (CVD) in older hypertensive patients. We simultaneously evaluated other biomarkers, such as high-molecular-weight (HMW) adiponectin, high-sensitivit...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpt232
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:Whether microvascular disease contributes to the development of left ventricular hypertrophy (LVH) is unclear. We examined the relationship of retinal microvascular signs with LVH in an African-American population. METHODS:A population-based, cross-sectional study of 1,439 middle-aged African-American parti...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1038/ajh.2007.57
更新日期:2008-03-01 00:00:00
abstract::Ambulatory blood pressure (BP) and heart rate (HR) were measured in a physically fit, normotensive postmenopausal African American woman, before and after 15 weeks of aerobic training. Mean BP, HR, and HR variability were normal at the outset and were further improved by training. Training had no effect on circadian B...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(02)02973-4
更新日期:2002-09-01 00:00:00
abstract::The nature of the cardiovascular response to isometric exercise is still debated. An adequate blood supply to exercising muscles at the onset of contraction seems to be an important factor controlling the extent of pressor response to isometric contraction. In comparison to normotensive subjects without familiar hyper...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/1.3.106s
更新日期:1988-07-01 00:00:00
abstract:BACKGROUND:Different methods of normalizing left ventricular (LV) mass for body size identify generally similar relative risks of adverse cardiovascular outcome but with variable prevalences of LV hypertrophy (H). Preliminary results from a population with high prevalence of obesity suggest that the population attribut...
journal_title:American journal of hypertension
pub_type: 杂志文章,多中心研究
doi:10.1016/j.amjhyper.2005.05.027
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND:The association of adiposity during childhood with future risk of elevated blood pressure (BP) in South Asian children is not known. We aimed to investigate the relationship between waist circumference (WC) and body mass index (BMI) with BP over a 2-year period, independent of the baseline BP. METHODS:We an...
journal_title:American journal of hypertension
pub_type: 杂志文章,随机对照试验
doi:10.1038/ajh.2011.67
更新日期:2011-08-01 00:00:00
abstract::Angiotensin II (Ang II) and transforming growth factor-beta (TGF-beta) modulate cell growth and metabolism. Our objective was to evaluate the effect of Ang II on the characteristics and expression of TGF-beta receptors on vascular smooth muscle cells (VSMC) from Wistar-Kyoto rats. The addition of TGF-beta1 elicited a ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(99)00152-1
更新日期:2000-02-01 00:00:00
abstract:BACKGROUND:Renal angiography (RA) is considered to be the gold standard for the diagnosis of renal artery stenosis (RAS). However, it is invasive and potentially harmful; hence there is a need for an optimal noninvasive test. Magnetic resonance angiography (MRA) is currently accepted as the optimal noninvasive test by ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2003.07.016
更新日期:2003-12-01 00:00:00
abstract::Previous studies showed that alpha 2-adrenergic receptors and imidazoline-guanidinium receptive sites (IGRS) are colocalized in rabbit and human renal proximal tubule. In the present study we investigated the localization of these two binding sites in the renal medulla from human kidney. Binding studies performed with...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/5.4.69s
更新日期:1992-04-01 00:00:00
abstract:BACKGROUND:Both increased night blood pressure (BP) and nondipping are associated with worse cardiovascular risk and prognosis. However, as they are often related features, their relative importance has been difficult to assess separately. In this study we address separate associations of nocturnal hypertension and non...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpt175
更新日期:2014-05-01 00:00:00
abstract::Changes in the lipid composition of the membrane affect its fluidity and function. These variables are altered in various forms of hypertension. Our hypothesis was that the rapid increase in blood pressure (BP) caused by inhibition of nitric oxide production would lead to alterations in membrane fluidity similar to th...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(00)01184-5
更新日期:2000-11-01 00:00:00
abstract:BACKGROUND:Circulating blood levels of human urotensin II (U-II), the most potent vasoconstrictor peptide identified to date, are increased in patients with essential hypertension. Our previous studies showed that U-II accelerates human macrophage foam cell formation and vascular smooth muscle cell proliferation, sugge...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2006.08.001
更新日期:2007-02-01 00:00:00
abstract:BACKGROUND:Erectile dysfunction (ED) is common among men taking antihypertensive drugs to control blood pressure. We evaluated the safety and efficacy of sildenafil citrate for treating ED in men taking multiple antihypertensive medications in a randomized, double-blind, placebo-controlled trial. METHODS:A total of 56...
journal_title:American journal of hypertension
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/j.amjhyper.2004.07.004
更新日期:2004-12-01 00:00:00
abstract:BACKGROUND:Obstructive sleep apnea (OSA) and left ventricular (LV) hypertrophy are considered to be closely associated. However, the relationship has not yet been fully demonstrated and is hence still controversial. The purpose of this study was to assess in hypertensive male patients the relationship between OSA and c...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpv115
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND:Elastin microfibril interfacer 1 (EMILIN-1) is a negative regulator of the transforming growth factor-beta (TGF-beta) signaling, which is involved in blood pressure (BP) homeostasis. Emilin1 knockout mice display elevated BP. The aim of the present study was to assess the association between the human EMILIN...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1038/ajh.2010.16
更新日期:2010-05-01 00:00:00
abstract::Platelet intracellular free calcium concentration [Ca2+]i from patients with essential hypertension has been found to be elevated, but the intracellular effects of this increase are still unclear. As protein phosphorylation is an important regulatory step in cell activation and increased protein phosphorylation has be...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/5.3.117
更新日期:1992-03-01 00:00:00
abstract:BACKGROUND:This study investigated the relationship of ethnicity to the differences between blood pressure (BP) measured in a clinic setting and by ambulatory blood pressure monitoring (ABPM) in individuals with a previous diagnosis of hypertension (HT) and without a previous diagnosis of hypertension (NHT). METHODS:A...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpu211
更新日期:2015-06-01 00:00:00
abstract::Three hundred eight outpatients referred for hypertension were studied. A continuous beat-to-beat noninvasive recording (Finapres) of blood pressure evaluated the blood pressure increase (9 mm Hg systolic and 4 mm Hg diastolic) induced by office sphygmomanometry. Thereafter, patients underwent a 24-h ambulatory blood ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/0895-7061(95)00354-1
更新日期:1996-04-01 00:00:00
abstract::Insulin resistance and hypertension, as well as dyslipidemia, frequently cooccur. Evidence that nitric oxide (NO) plays a crucial role in the long-term regulation of systolic blood pressure led us to examine whether enhanced vasoconstriction and hypertension induced by NO synthase inhibitor could lead to insulin and l...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(98)00089-2
更新日期:1998-09-01 00:00:00
abstract:BACKGROUND:Liddle syndrome (LS), an autosomal dominant disorder, is a common monogenic hypertension in pediatrics. In this study, we reported a novel SCNN1G variant in a Chinese family with pediatric LS, and conduct a systematic review of epithelial sodium channel (ENaC)-gene-positive LS cases to conclude the clinical ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpaa037
更新日期:2020-07-18 00:00:00
abstract:BACKGROUND:Genetic factors may influence blood pressure (BP) responses to dietary potassium intake. We examined the association of genetic variants in the apelin-APJ system and angiotensin-converting enzyme 2 (ACE2) with BP responses to potassium supplementation. METHODS:We conducted a 7-day potassium supplementation ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1038/ajh.2010.36
更新日期:2010-06-01 00:00:00
abstract::Pneumonia is a major direct cause of death in the elderly. Although aspiration based on a reduced cough reflex is one of the causes of pneumonia in the elderly, there are few studies of angiotensin-I converting enzyme inhibitors (ACE inhibitors), which are antihypertensive drugs that induce cough, as a factor influenc...
journal_title:American journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1016/s0895-7061(99)00035-7
更新日期:1999-08-01 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