Abstract:
OBJECTIVE:Anemia is common in patients with heart failure and several factors have been thought to cause anemia in heart failure. Despite vigorous studies, the mechanism underlying the pathophysiology of anemia in heart failure is unknown. We investigated the iron regulating system in Dahl salt-sensitive heart failure rats to elucidate the mechanism of anemia in heart failure. METHODS:Dahl salt-sensitive rats were provided either a normal or high-salt diet to initiate heart failure progression. A further subset of Dahl salt-sensitive rats underwent an iron-deficient diet to induce iron deficiency anemia (IDA). RESULTS:Dahl salt-sensitive rats, which develop diastolic heart failure, gradually showed hypertension and anemia after 8 weeks of high-salt diet. Although serum iron levels were decreased, erythropoietin levels were increased in the IDA and heart failure groups. Hepatic expression of hepcidin, a central regulator of iron metabolism, was downregulated in both IDA and heart failure groups. Duodenal cytochrome b (Dcyt-b), divalent metal transporter 1 (DMT-1), and ferroportin are the crucial regulators of intestinal iron transport and absorption. Duodenal expression levels of these molecules were markedly upregulated in the IDA group, but not in the heart failure group. Moreover, intestinal expression of hypoxia-inducible factor-2α, a critical regulator of the transcription of Dcyt-b and DMT-1, was upregulated in the IDA group, but not in the heart failure group. CONCLUSION:Duodenal iron transporters expression was impaired in Dahl heart failure rats. Our data suggest that impaired duodenal iron absorption may occur in Dahl heart failure rats. Understanding the mechanism of abnormal iron regulating system may lead to new therapeutic strategies in anemia with heart failure.
journal_name
J Hypertensjournal_title
Journal of hypertensionauthors
Naito Y,Tsujino T,Fujimori Y,Sawada H,Akahori H,Hirotani S,Ohyanagi M,Masuyama Tdoi
10.1097/HJH.0b013e3283434784subject
Has Abstractpub_date
2011-04-01 00:00:00pages
741-8issue
4eissn
0263-6352issn
1473-5598journal_volume
29pub_type
杂志文章abstract:OBJECTIVE:The increase in blood pressure that accompanies the obese state is almost invariably associated with alterations in metabolism (insulin resistance and dyslipidaemia) and the neurohumoral profile (activation of the renin-angiotensin system, sympathetic overactivity), which potentiate the cardiovascular risk as...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00004872-200309000-00027
更新日期:2003-09-01 00:00:00
abstract:OBJECTIVE:To audit the performances of the analytes used in the diagnosis of pheochromocytoma and to present a graphical guideline to help the diagnosis. DESIGN:A 5 year retrospective study. SETTINGS:Laboratory and departments of a university hospital. PARTICIPANTS:In-patients, suspected of bearing a pheochromocytom...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200106000-00006
更新日期:2001-06-01 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:BACKGROUND:As a new category of blood pressure (BP) classification according to the Seventh Report of The Joint National Committee, prehypertension has aroused people's great concern in recent years due to its associations with increased incidence of cardiovascular disease. However, there is little information about th...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e32834f9dd3
更新日期:2012-03-01 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
abstract:OBJECTIVES:The antihypertensive effect of thiazide diuretics in angiotensin II induced hypertension has never been characterized. In the current study, we sought to determine the effect of a thiazide diuretic on arterial pressure and renal fluid excretion in rats receiving a chronic intravenous infusion of angiotensin ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200109000-00012
更新日期:2001-09-01 00:00:00
abstract:INTRODUCTION:Recent randomized controlled trials have confirmed the ability of renal denervation to lower blood pressure (BP) in patients, resistant to the BP-lowering effect of multiple antihypertensive drug administration. Evidence is limited, however, in patients with end-stage renal disease (ESRD) and haemodialysis...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000002358
更新日期:2020-05-01 00:00:00
abstract:OBJECTIVE:To investigate the effect of angiotensin-converting enzyme inhibitors and angiotensin II receptor blockers on pneumonia hospitalization in patients with stroke history in Taiwan. METHODS:We conducted a case-crossover study using the National Health Insurance Research Database in Taiwan during the period from...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328357a87a
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVE:To investigate the effects of hypertension and diabetes mellitus on vascular albumin permeability and hypertrophy in 11-week-old Wistar-Kyoto (WKY) rats and spontaneously hypertensive rats (SHR) with and without 3 weeks of streptozotocin-induced diabetes. METHODS:Vascular albumin permeability was measured as...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199505000-00008
更新日期:1995-05-01 00:00:00
abstract:OBJECTIVE:The main objective was to examine the role of hemodynamics in rat aortic and left ventricular hypertrophy produced by sinoaortic denervation (SAD). DESIGN AND METHODS:Rats were examined at different times after SAD or sham operation (Sham). Hemodynamics were recorded continuously in conscious unrestrained ra...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200209000-00033
更新日期:2002-09-01 00:00:00
abstract::The purpose of this study was to examine pressor responsiveness in a rabbit model with adrenal perturbation. Adrenals in rabbits were stabbed with a needle, and the rabbits were given water (adrenal-water group) or 0.9% NaCl (adrenal-salt) to drink; additional rabbits were sham-operated and given water (sham-water gro...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-198502000-00014
更新日期:1985-02-01 00:00:00
abstract:OBJECTIVES:Human adrenomedullin precursor is converted to glycine-extended adrenomedullin (AM-Gly), an intermediate inactive form of adrenomedullin. Subsequently, AM-Gly is converted to active form of mature adrenomedullin (AM-m). The aim of the present study was to investigate (i) whether sex or age influences plasma ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200104000-00014
更新日期:2001-04-01 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:BACKGROUND:We examined the relation between cardiovascular reactivity (the response of the cardiovascular system to psychological stress) and the severity and progression of carotid atherosclerosis. METHODS:Using duplex ultrasonography, we measured the change in the area of all detectable plaques in the extracranial c...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199715010-00004
更新日期:1997-01-01 00:00:00
abstract:BACKGROUND:Haemostatic factors may play a part in the development of acute coronary heart disease. OBJECTIVE:To evaluate as predictors of major coronary events (fatal and non-fatal myocardial infarctions and sudden death) levels of fibrinogen, von Willebrand factor, prothrombin fragment 1+2, thrombin-antithrombin comp...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199816040-00016
更新日期:1998-04-01 00:00:00
abstract:INTRODUCTION:Chronic kidney disease (CKD) in which the disease cannot be attributed to any known cause is named CKD of uncertain aetiology (CKDu). The main aims of this analysis were to estimate the prevalence of hypertension and to identify the associated factors in a rural community vulnerable to CKDu and to identify...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000002107
更新日期:2019-09-01 00:00:00
abstract:OBJECTIVE:To test the hypothesis that in the stroke-prone spontaneously hypertensive rat (SHRSP), the pressor effect of selective dietary chloride loading depends on a positive external sodium balance. METHODS:In 43 male SHRSP fed a Japanese style diet containing a low normal amount of NaCl (0.4%), we compared the eff...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3283316cfc
更新日期:2010-01-01 00:00:00
abstract:OBJECTIVE:The genetic background of orthostatic hypotension, an important risk factor for future cardiovascular morbidity and mortality, was investigated. DESIGN AND METHODS:The study subjects comprised 415 community-dwelling individuals, who were free from any cardiovascular complications, aged 50 years or older (mea...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200204000-00022
更新日期:2002-04-01 00:00:00
abstract:OBJECTIVE:The mechanisms underlying the relationship between the vascular complications of diabetes and the glycaemic control are not well understood. We tested whether glycaemic control influences the functioning of the nitric oxide system in type 1 diabetic patients and the role for oxidative stress. METHODS:The cha...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1097/00004872-200306000-00013
更新日期:2003-06-01 00:00:00
abstract:BACKGROUND:Hypertensive nephrosclerosis is one of the most frequent causes of chronic kidney failure. Proteome analysis potentially improves the pathophysiological understanding and diagnostic precision of this disorder. In the present exploratory study, we investigated experimental nephrosclerosis in the two-kidney, o...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000000370
更新日期:2015-01-01 00:00:00
abstract::The function of the renin-angiotensin system (RAS) is influenced by changes in sodium balance and angiotensin II (ANG II) levels. In previous studies it has been difficult to assess the physiological effects on blood pressure homeostasis of different rates of ANG II infusion and of different levels of sodium in the di...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1985-10-01 00:00:00
abstract:CONTEXT:There is a growing prevalence of cardiovascular disease (CVD) risk factors in West Africa and among its migrants to industrialized countries. Despite this, no study has reviewed CVD risk factor prevalence among West Africans in Africa and industrialized countries. OBJECTIVE:To appraise studies on the prevalenc...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/HJH.0000000000000061
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND:Childhood hypertension is an established predictor of adult hypertension and organ damage, an underestimated problem in developing countries. The aim of the study was to assess the prevalence of arterial hypertension, as well as the relationship of blood pressure values and weight class and urinary abnormali...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3283407fe3
更新日期:2011-02-01 00:00:00
abstract::Isolated tail arteries from stroke-prone spontaneously hypertensive rats (SHRSP), but not from normotensive Wistar-Kyoto rats (WKY), exhibit oscillatory contractions in response to norepinephrine. Previous studies indicate that the mechanism for these oscillations involves altered membrane calcium and/or potassium han...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-198901000-00005
更新日期:1989-01-01 00:00:00
abstract:OBJECTIVES:Whether the C-344T polymorphism of the aldosterone synthase gene is important for blood pressure control remains controversial. It has been proposed that an association between this polymorphism and blood pressure might be evident in elderly subjects. The aim of the present study was to test this hypothesis ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/01.hjh.0000183119.92455.a7
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:The aldosterone synthase gene (CYP1B2) locus is a candidate region involved in the development of hypertension. OBJECTIVE:To study the relationship between the C-344T CYP1B2 polymorphism, plasma aldosterone, renin activity and blood pressure in a multi-ethnic population. DESIGN:Population-based, cross-sect...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200410000-00011
更新日期:2004-10-01 00:00:00
abstract:OBJECTIVES:The present study was designed to examine whether or not excessive Zn intake affects systemic blood pressure (BP) levels in a normotensive state. METHODS:Systolic BP (SBP) and mean arterial pressure (MAP) before and after administration of the nitric oxide synthase (NOS) inhibitor, N-nitro-L-arginine methyl...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200403000-00017
更新日期:2004-03-01 00:00:00
abstract:OBJECTIVE:To evaluate the contribution of the haem oxygenase-carbon monoxide (CO) system to renal vascular tone in normotensive Wistar rats and in the stroke-prone spontaneously hypertensive rats (SHR-SPs). METHODS:An isolated perfused rat kidney preparation was used in which perfusion pressure/phenylephrine dose-vaso...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200106000-00016
更新日期:2001-06-01 00:00:00
abstract:OBJECTIVE AND DESIGN:The early phase of weight loss induced by fasting is associated with diuresis, natriuresis and reduction in blood pressure through unclear mechanisms. Atrial natriuretic peptide (ANP) is a cardiac hormone with potent natriuretic, diuretic and hypotensive effects mediated by 'biologically active' re...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199511000-00004
更新日期:1995-11-01 00:00:00
abstract::: High blood pressure (BP) is a highly prevalent modifiable cause of cardiovascular disease, stroke, and death. Accurate BP measurement is critical, given that a 5-mmHg measurement error may lead to incorrect hypertension status classification in 84 million individuals worldwide. This position statement summarizes pro...
journal_title:Journal of hypertension
pub_type: 杂志文章,实务指引
doi:10.1097/HJH.0000000000002112
更新日期:2019-09-01 00:00:00