Abstract:
:Plasma plasminogen activator inhibitor type 1 (PAI-1) and tissue plasminogen activator (tPA) antigens and activities were measured in 28 patients with hypertension and 12 normal controls. Steady state plasma glucose (SSPG) concentrations were also determined after an infusion of somatostatin, insulin and glucose. Patients with hypertension were further subdivided into two groups: insulin resistance (SSPG > 190 mg/dL, n = 14) and no insulin resistance (SSPG < 190 mg/dL, n = 14). As compared to normal controls, hypertensive patients, either with or without insulin resistance, had a significant (P < .005) increases in PAI-1 activity (18.6 +/- 1.3 upsilon 8.1 +/- 0.8 IU/mL), PAI-1 antigen (31.1 +/- 2.0 upsilon 12.7 +/- 0.9 ng/mL) and tPA antigen (15.5 +/- 0.9 upsilon 8.8 +/- 0.9 ng/mL), and significant decrease in tPA activity (0.43 +/- 0.05 upsilon 1.02 +/- 0.16 IU/mL) than normotensive controls. Furthermore, hypertensive patients with insulin resistance had significantly higher PAI-1 activity (22.0 +/- 2.2 upsilon 15.3 +/- 0.8 IU/mL, P = .006) and tPA antigen (17.4 +/- 1.2 upsilon 13.6 +/- 1.3 ng/mL, P = .02) than did hypertensive patients without insulin resistance. However, PAI-1 antigen was insignificantly higher (34.1 +/- 2.9 upsilon 28.1 +/- 2.4 ng/mL, P = .06) and tPA activity insignificantly lower (0.42 +/- 0.08 upsilon 0.43 +/- 0.08 IU/mL, P = .47) in hypertensive patients with insulin resistance than in those without insulin resistance. In addition, PAI-1 activity and tPA antigen were significantly correlated with blood pressure, SSPG, triglyceride, HDL-cholesterol and integrated glucose response to an oral load of 75 g glucose. Thus, patients with hypertension have impaired fibrinolytic activity due to increased PAI-1 when compared to normotensive controls, and the magnitude of this fibrinolytic defect is greater in hypertensive patients who have insulin resistance. Insulin resistance with associated metabolic abnormalities may be one of the causes for impaired fibrinolysis in hypertension.
journal_name
Am J Hypertensjournal_title
American journal of hypertensionauthors
Jeng JR,Sheu WH,Jeng CY,Huang SH,Shieh SMdoi
10.1016/0895-7061(95)00442-4subject
Has Abstractpub_date
1996-05-01 00:00:00pages
484-90issue
5eissn
0895-7061issn
1941-7225pii
0895-7061(95)00442-4journal_volume
9pub_type
临床试验,杂志文章abstract:BACKGROUND:Little is known about hypertension in the HIV-infected population. This study aimed to assess the prevalence of hypertension and related factors in HIV-infected patients. METHODS:In this prospective cross-sectional study, 710 HIV-infected patients (626 on combination antiretroviral therapy and 84 naive) man...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2005.05.016
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:There may be a link among stress, adrenal medullary activation, and the development of hypertension. Obesity is characterized by sympathetic activation and predisposes to hypertension, but may be associated with low or normal adrenal medullary activity. We hypothesized that plasma epinephrine (E) levels and ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2004.03.676
更新日期:2004-07-01 00:00:00
abstract::Angiotensin II (AII) has many potential effects on blood pressure regulation in addition to direct vasoconstriction. This study tested the hypothesis that minimally pressor infusions of AII, which themselves exert minimal effects on blood pressure, might significantly perturb the pressure response to hypertonic volume...
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/7.8.767
更新日期:1994-08-01 00:00:00
abstract::This study found that pigs in the early stages of perinephritic hypertension had enhanced plasma norepinephrine (NE) and heart rate (HR) responses to behaviorally arousing stimuli (lifting in a canvas sling) and exercise. In the hypertensive animals, the increase in plasma NE in response to behavioral arousal caused b...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/6.10.844
更新日期:1993-10-01 00:00:00
abstract:BACKGROUND:We postulated that acute hypoxemia increases susceptibility to orthostatic hypotension by increasing the sensitivity of cardiovascular baroreceptors. METHODS:Hemodynamics were measured noninvasively in 17 healthy, normotensive subjects while being subjected to decreasing venous return by exposure to lower b...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2006.02.005
更新日期:2006-09-01 00:00:00
abstract::Cocaine causes acute hypertension by blocking catecholamine reuptake. There is evidence that it also impairs the peripheral endothelial nitric oxide system, which is normally vasodilatory. We further explored the role of nitric oxide in cocaine-induced vasoconstriction in anesthetized rats, and in vitro by using isola...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(98)00041-7
更新日期:1998-06-01 00:00:00
abstract:BACKGROUND:Recently, the central augmentation index (AIx) has been reported to show a nonlinear correlation with age. We investigated whether the AIx of the central artery changes with the progression of atherosclerosis in Kurosawa and Kusanagi-hypercholesterolemic (KHC) rabbits. METHODS:We simultaneously recorded pre...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hps037
更新日期:2013-03-01 00:00:00
abstract::The nonpeptide angiotensin II (AII)-receptor antagonist losartan is a selective blocker of the pressor effects of AII. It is now being evaluated as an anti-hypertensive drug in multicenter clinical trials in the United States and other countries. Preliminary inpatient studies have shown that after 5 days of treatment,...
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:10.1093/ajh/5.12.247s
更新日期:1992-12-01 00:00:00
abstract:BACKGROUND:The risk for cardiovascular events increases within hours of near-roadway exposures. We aimed to determine the traffic-related air pollution (TRAP) and biological mechanisms involved and if reducing particulate matter <2.5 µm (PM2.5) inhalation is protective. METHODS:Fifty healthy-adults underwent multiple ...
journal_title:American journal of hypertension
pub_type: 杂志文章,随机对照试验
doi:10.1093/ajh/hpz113
更新日期:2019-10-16 00:00:00
abstract:BACKGROUND:Obstructive sleep apnea (OSA) induces inflammation and vascular damage that might contribute to an increased risk of cardiovascular disease (CVD). However, the mechanisms linking OSA and CVD are not fully understood. Pentraxin3 may play a significant role in vascular inflammation and damage. Currently, there...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1038/ajh.2010.248
更新日期:2011-04-01 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:BACKGROUND:Recent studies have shown that tamoxifen, which belongs to a group called selective estrogen receptor modulators (SERM), may exert protective effects against cardiovascular diseases and stroke in postmenopausal women. On the other hand, abnormalities in physical properties of the cell membranes may underlie ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2005.02.009
更新日期:2005-08-01 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:BACKGROUND:The adverse association between blood pressure and carotid artery intima-media thickness (IMT), a surrogate measure of subclinical atherosclerosis, is well-known. However, whether the G-6A polymorphism of the angiotensinogen (AGT) gene, a candidate gene of hypertension and vascular remodeling, modulates this...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/j.amjhyper.2007.06.001
更新日期:2007-10-01 00:00:00
abstract::The aim of this study was to compare the efficacy (lowering diastolic blood pressure to 90 mm Hg or less) of urapidil, a postsynaptic alpha-blocker with central action with that of captopril in a randomized, double-blind, multicenter study. Two hundred ninety-five essential hypertensives (WHO I/II) (140 male, 155 fema...
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/1.3.233s
更新日期:1988-07-01 00:00:00
abstract::Longitudinal studies in children have tracked blood pressure through childhood and from childhood into adult life. However, many children do not maintain their rank during these periods of observation. Several of the factors contributing to maintenance of rank order are reviewed, such as initial level of blood pressur...
journal_title:American journal of hypertension
pub_type: 杂志文章,评审
doi:10.1093/ajh/4.11s.608s
更新日期:1991-11-01 00:00:00
abstract:BACKGROUND:This birth cohort study was conducted to investigate the contribution of prenatal and antenatal environmental exposures to later-life hypertensive status. METHODS:Two thousand five hundred and three individuals born in 1921-1954 at the Peking Union Medical College Hospital (PUMCH) were targeted; 2,081 (83.1...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1038/ajh.2011.262
更新日期:2012-04-01 00:00:00
abstract::We have previously reported that myocardial microsomal Na+,K(+)-ATPase activity, arterial wall ouabain-sensitive 86Rb uptake, and arterial smooth muscle cell membrane potentials are decreased and plasma Na(+)-K+ pump inhibitory activity is increased in rats during the fifth week of one-kidney, one-clip hypertension. W...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract:BACKGROUND:Left ventricular (LV) hypertrophy and impaired diastolic function may occur early in systemic hypertension, but longitudinal studies are missing. METHODS:We performed an echocardiographic follow-up study in young initially normotensive male offspring of hypertensive (OHyp) (n = 25) and normotensive (ONorm) ...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(00)01245-0
更新日期:2001-02-01 00:00:00
abstract::Body sodium works together with the plasma renin-angiotensin system to ensure adequate blood flow to the tissues. Body sodium content determines the extracellular fluid (ECF) volume ensuring that, with each heart beat, a sufficient volume of fluid is delivered into the arterial space. At the same time the kidneys moni...
journal_title:American journal of hypertension
pub_type: 杂志文章,评审
doi:10.1038/ajh.2011.171
更新日期:2011-11-01 00:00:00
abstract::Increased insulinemic response to an oral glucose load has been demonstrated in Dahl salt-sensitive hypertensive rats. To determine whether this abnormality is mediated at the level of the insulin receptor, we compared insulin receptor binding and mRNA levels in tissues of Dahl salt-sensitive rats (DS) and in their no...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1016/s0895-7061(97)00220-3
更新日期:1997-11-01 00:00:00
abstract:BACKGROUND:Population-level sociologic studies have suggested that adverse societal conditions may affect fetal viability in a sex-specific manner and thereby modify the ratio of male vs. female babies. This concept suggests that there may exist certain physiologic features in a woman that relate to her likelihood of d...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpw165
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:It is not known whether strict control of blood pressure (BP) in mild post-transplant hypertension gives any benefit. Our primary objective was to test the antihypertensive effects of lisinopril added to standard therapy on ambulatory BP (ABP) of post-transplant patients. The secondary objective was to monit...
journal_title:American journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0895-7061(02)02992-8
更新日期:2002-10-01 00:00:00
abstract:BACKGROUD:Declining renal function is an independent risk factor for all-cause mortality in cardiovascular disease. Visfatin has been described as a marker of inflammation and endothelial dysfunction, but whether circulating visfatin levels are predictive to a subsequent decline in renal function remains unclear. METH...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpv132
更新日期:2016-04-01 00:00:00
abstract::Post-transplant hypertension remains an important risk factor for cardiovascular mortality and graft function. There are multiple mechanisms responsible for post-transplant hypertension. The details of these mechanisms are poorly understood. Steroids, acute and chronic rejection, recurrent renal disease, native kidney...
journal_title:American journal of hypertension
pub_type: 杂志文章,评审
doi:10.1093/ajh/3.9.721
更新日期:1990-09-01 00:00:00
abstract::We tested the reproducibility of ambulatory blood pressure monitoring (ABPM) by the use of agreement plots. Thirty-two normotensive volunteers underwent ABPM on four separate days (interval 28 days), on the same typical weekday. Sleeping time was restricted to the ABPM nighttime subperiod from 11:00 PM to 7:00 AM. Twe...
journal_title:American journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1016/s0895-7061(97)00126-x
更新日期:1997-08-01 00:00:00
abstract:BACKGROUND:Previous autopsy studies suggested that a reduced nephron number is associated with increased risk of hypertension and chronic kidney disease. However, the significance of the nephron number estimated from a renal biopsy in patients with hypertensive nephrosclerosis (HNS) has not yet been elucidated. METHOD...
journal_title:American journal of hypertension
pub_type: 杂志文章
doi:10.1093/ajh/hpu267
更新日期:2015-09-01 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:Nocturnal blood pressure (BP) is associated with risk for cardiovascular events. However, the relationship between nocturnal BP in young adults and cognitive function in midlife remains unclear. METHODS:We used data from the ambulatory BP monitoring substudy of the Coronary Artery Risk Development in Young ...
journal_title:American journal of hypertension
pub_type: 杂志文章,多中心研究
doi:10.1093/ajh/hpv028
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:The angiotensin II type 1 receptor A1166C polymorphism has been associated with increased risks of hypertension and myocardial infarction in several small studies. We examined the association between this polymorphism and new-onset hypertension, blood pressure (BP) control, and incident cardiovascular events...
journal_title:American journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0895-7061(02)03063-7
更新日期:2002-12-01 00:00:00