Abstract:
OBJECTIVES:We examined whether the Rho/Rho-kinase pathway is involved in the pathogenesis of nephrosclerosis in severely hypertensive rats and assessed the effects of long-term treatment with a Rho-kinase inhibitor, fasudil, on kidney function, histological findings, gene expressions, and survival. We also attempted to elucidate the mechanisms involved. METHODS:We studied the following four groups: control Wistar-Kyoto rats (WKY), untreated salt-loaded spontaneously hypertensive stroke-prone rats (SHR-SP), low-dose fasudil (15 mg/kg per day)-treated SHR-SP, and high-dose fasudil (30 mg/kg per day)-treated SHR-SP. After 8 weeks' treatment, the effects of fasudil were examined. RESULTS:Untreated SHR-SP were characterized by increased blood pressure without circadian variation, decreased kidney function, abnormal renal morphological findings, and increased messenger RNA expression levels of transforming growth factor beta, collagen I, collagen III, p40phox, p47phox, plasminogen activator inhibitor 1, and intracellular adhesion molecule 1 in the renal cortex, compared with WKY. Long-term high-dose fasudil treatment significantly improved renal function (serum creatinine -32%, creatine clearance +39%), proteinuria (-92%) and histological findings (glomerular injury score -57%, arteriolar injury score -55%, fibrous area -40%, ED-1-positive cells -43%) without changing blood pressure or circadian variation, compared with untreated SHR-SP. In addition, fasudil significantly improved increased mRNA expression levels in the renal cortex. Furthermore, high-dose fasudil significantly prolonged survival time compared with untreated SHR-SP (P < 0.01). Low-dose fasudil treatment improved these variables slightly, but did not affect most significantly. CONCLUSION:The Rho/Rho-kinase pathway participates in the pathogenesis of nephrosclerosis in SHR-SP independently of blood pressure-lowering activity, partly by upregulation of the gene expressions of extracellular matrix, oxidative stress, adhesion molecules, and antifibrinolysis.
journal_name
J Hypertensjournal_title
Journal of hypertensionauthors
Nishikimi T,Koshikawa S,Ishikawa Y,Akimoto K,Inaba C,Ishimura K,Ono H,Matsuoka Hdoi
10.1097/HJH.0b013e3280825440subject
Has Abstractpub_date
2007-05-01 00:00:00pages
1053-63issue
5eissn
0263-6352issn
1473-5598pii
00004872-200705000-00023journal_volume
25pub_type
杂志文章abstract:INTRODUCTION:QT interval prolongation increases the risk of sudden death in several medical conditions. Patients with primary aldosteronism and salt-sensitive hypertension experience more cardiovascular events than those with normal-renin essential hypertension. QT interval prolongation might represent one of the risk ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/01.hjh.0000251908.93298.a0
更新日期:2006-12-01 00:00:00
abstract:OBJECTIVE:To introduce a new method, the smoothness index, for assessing the homogeneity of 24 h blood pressure reduction by antihypertensive treatment and to compare it with the trough : peak ratio; and to assess the ability of both indices to predict a reduction in the left ventricular mass index induced by treatment...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1097/00004872-199816110-00016
更新日期:1998-11-01 00:00:00
abstract:OBJECTIVE:To examine the effect on quality of life in hypertensive men of a multiple risk factor intervention programme compared with that of usual care. DESIGN:A prospective, open, randomized, parallel-group study with allocation either to a comprehensive multiple risk factor modification programme or to usual care. ...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1995-12-01 00:00:00
abstract:OBJECTIVE:Blood pressure normally declines during the night ('dipping'); a blunted nocturnal decline is an important cardiovascular risk factor. Marriage may be associated with lower ambulatory blood pressure, although this may be confounded by socio-economic and dietary factors. We examined the association of marital ...
journal_title:Journal of hypertension
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/HJH.0000000000000107
更新日期:2014-04-01 00:00:00
abstract:OBJECTIVE:Inflammation is necessary for successful pregnancy; however, excessive inflammation plays a central role in the development of the pregnancy-specific hypertensive disorder preeclampsia. Numerous anti-inflammatory cytokines are decreased in women with preeclampsia but the role of individual cytokines in blood ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328360ae6c
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND:The Glu298Asp, T786C and 4a/4b genetic polymorphisms within the endothelial nitric oxide synthase (e-NOS) gene may predispose to hypertension, ischaemic heart disease and renal damage, possibly by reducing the generation of nitric oxide (NO), a fundamental substance in renal and cardiovascular biology. That ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3281268548
更新日期:2007-07-01 00:00:00
abstract:OBJECTIVE:We compared diurnal patterns of blood pressure in Wistar-Kyoto (WKY) rats, spontaneously hypertensive rats (SHR) and stroke-prone spontaneously hypertensive rats (SHRSP), and analyzed the relationship between the change in diurnal patterns of blood pressure and target-organ damage in SHRSP. MATERIALS AND MET...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199917020-00005
更新日期:1999-02-01 00:00:00
abstract:OBJECTIVE:We investigated to what extent anthropometric and lifestyle factors contributed to the classification of Chinese individuals into groups with white-coat, masked and sustained hypertension (HT). METHODS:We measured the office and ambulatory blood pressure (BP) in 694 Chinese enrolled in the JingNing populatio...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3282efeee7
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVE:The platelet GPIIIa plays a pivotal role in platelet aggregation. Previous studies showed an association between the GPIIIa Pl(A1/A2) polymorphism and coronary thrombosis, while there is only contrasting evidence about its role in stroke. We explored the possibility that this polymorphism represents a risk fa...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328013cd67
更新日期:2007-03-01 00:00:00
abstract:OBJECTIVES:To examine a possible relationship between baseline albuminuria and effect of losartan versus atenolol on cardiovascular (CV) events in hypertensive patients with left ventricular hypertrophy, the effect of losartan versus atenolol on albuminuria, and whether the benefits of losartan versus atenolol could be...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004872-200409000-00026
更新日期:2004-09-01 00:00:00
abstract:OBJECTIVE:Different radiologists may show considerable variation in their interpretation of renal angiograms. We therefore wished to establish the reliability of their interpretation. DESIGN:Assessment of the intra- and inter-observer agreement of the interpretation of renal angiograms. SETTING:Tertiary referral univ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199917120-00011
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVE:There is ongoing discussion on how best to screen for diabetes mellitus. Previous studies suggest that an abnormal oral glucose tolerance test (OGTT) is better than fasting glucose levels in predicting cardiovascular mortality, which is largely determined by macrovascular complications in type 2 diabetes. We ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e32834e38b6
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVE:To compare retinal arterial bifurcation geometry in normotensive and hypertensive subjects. DESIGN:A retrospective observational study. METHODS:Fluorescein angiograms of normotensive (n = 13) and hypertensive (n = 12) subjects aged 30-80 years with uni-ocular retinal pathology were compared. Quantification ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1995-12-01 00:00:00
abstract:OBJECTIVE:To conduct a longitudinal evaluation of the central haemodynamic adaptations of normal pregnancy. METHODS:This was a prospective longitudinal study involving healthy, normotensive women who were having an uncomplicated, singleton pregnancy. Brachial and central SBP, DBP, mean arterial pressure (MAP), brachia...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001768
更新日期:2018-10-01 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: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:The effect of brief, prehypertensive therapy by angiotensin-converting enzyme inhibition (ACEi) with perindopril on the structure and function of large arteries was studied in rats. METHODS:Spontaneously hypertensive rats (SHR) received perindopril (3 mg/kg per day) between the ages of either 6 and 10 weeks ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3283562e35
更新日期:2012-09-01 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:OBJECTIVES:Recently, the nanomechanical properties (i.e. stiffness) of endothelial cells have been identified as crucial for appropriate endothelial function. One major determinant of endothelial stiffness is the endothelial sodium channel (EnNaC). EnNaC-dependent stiffening leads to reduced nitric oxide release, which...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000000736
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVES:Increased central artery stiffness associates with cardiovascular disease. Among other factors, hypertension and aging are strong contributors to central artery stiffening, yet it has been difficult to separate their effects. Herein, we study isolated and combined effects of hypertension and aging on central...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000002400
更新日期:2020-07-01 00:00:00
abstract::The haemodynamic effects associated with the onset of hypertension induced by infusion of adrenocorticotrophin (ACTH) were investigated in sheep. Analysis of haemodynamic data collected over 24 h by a computer-based monitoring system revealed that mean arterial pressure (MAP) was significantly increased after 4 h. Car...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1989-04-01 00:00:00
abstract:OBJECTIVE:Preeclampsia is associated with an elevated risk of cardiovascular disease later in life. Women with a history of preeclampsia are at risk of developing hypertension as well as ischemic heart disease. Identification of women at the highest risk is important to initiate preventive strategies. We investigated w...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000002497
更新日期:2020-10-01 00:00:00
abstract::Hypertension in children and adolescents has gained ground in cardiovascular medicine, thanks to the progress made in several areas of pathophysiological and clinical research. These guidelines represent a consensus among specialists involved in the detection and control of high blood pressure in children and adolesce...
journal_title:Journal of hypertension
pub_type: 杂志文章,实务指引
doi:10.1097/HJH.0b013e32832f4f6b
更新日期:2009-09-01 00:00:00
abstract:OBJECTIVE:Nifedipine, an L-type calcium channel blocker, is widely used in the treatment of hypertension and coronary heart diseases, and also exhibits an antiplatelet activity. Activation of peroxisome proliferator-activated receptors (PPARs; α, β/δ, and γ) inhibits the platelet aggregation. Therefore, the purpose of ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000000007
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVES:Stroke is elevated in people of black African descent, but evidence for excess subclinical cerebrovascular disease is conflicting, and the role of risk factors in determining any ethnic differences observed unexplored. METHODS:We compared prevalence of brain infarcts, and severe white matter hyperintensitie...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328364f5bc
更新日期:2013-12-01 00:00:00
abstract::We have previously reported that pressor doses of angiotensin II induce atrial natriuretic factor (ANF) release. Since the number of glomerular and vascular ANF receptors may vary inversely with plasma ANF levels, we investigated whether they are modified by angiotensin II. Male rats were infused intraperitoneally for...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1991-12-01 00:00:00
abstract::Several myosin isoforms are expressed in smooth muscle, based upon both heavy and light chain polymorphisms. These myosin isoenzymes reveal distinct detachment rate constants, thus regulating the responsiveness of the VSMC contractile apparatus to Ca2+, as well as its energetical and mechanical behavior. ...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/00004872-199205000-00002
更新日期:1992-05-01 00:00:00
abstract:OBJECTIVES:Globally, healthcare policy promotes supported self-management as a strategy for people with long-term conditions. This meta-review aimed to explore how people with hypertension make sense of their condition, to assess the effectiveness of supported self-management in hypertension, and to identify effective ...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/HJH.0000000000001867
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND:The oral contraceptive pill (OCP) is widely prescribed throughout the world. Although it is associated with a small but significant increase in blood pressure, the influence of the OCP on large artery stiffness and wave reflection is unclear. The aim of this study was to determine the relationship between us...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328346a5af
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVES:Brachial artery flow-mediated dilation (FMD) is a popular technique to examine endothelial function in humans. Identifying volunteer and methodological factors related to variation in FMD is important to improve measurement accuracy and applicability. METHODS:Volunteer-related and methodology-related parame...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001012
更新日期:2016-09-01 00:00:00