Abstract:
BACKGROUND:The effects of salt intake on renal regulation have been investigated for decades. To find new pathways and to demonstrate the utility of oligonucleotide expression arrays, we studied whole kidneys. METHODS:Eight Sprague-Dawley rats were divided into two groups. One group received a 6% salt (by weight) diet, while the other group received a 0.3%, otherwise identical, salt diet for 7 days. The rats were sacrificed after 7 days and the left kidney was subjected to RNA extraction. Oligonucleotide expression arrays (Affymetrix) were used to determine downregulation and upregulation, comparing high with low salt intake. Four rats from each group were studied separately. RESULTS:The experiments were reproducible. Thirty genes were downregulated with the high-salt diet, while 35 genes were upregulated. The renin gene, beta-2 glycoprotein-1, retinol binding protein, annexin VI, and the PTP2C protein tyrosine phosphatase were among the downregulated genes. The angiotensin II receptor type 1B receptor, HMG-CoA reductase, B7 antigen, and the rat calcium channel beta subunit III were among the upregulated genes. Differentially regulated were the p55 subunit (upregulated) and the p50 subunit (downregulated) of the phosphatidyl inositol 3-kinase enzyme complex. We verified our results by selecting a high-salt downregulated gene (renin) and an upregulated gene (B7 antigen) and subjecting these genes to real-time polymerase chain reaction. The results were consistent. CONCLUSION:Oligonucleotide expression arrays can detect novel genes encoding for proteins not generally associated with responses to varied salt intake. Experiments of this nature have substantial limitations and require detailed verification. However, overall, the utility is promising.
journal_name
J Hypertensjournal_title
Journal of hypertensionauthors
Barta P,Monti J,Maass PG,Gorzelniak K,Müller DN,Dechend R,Luft FC,Hübner N,Sharma AMdoi
10.1097/00004872-200206000-00022subject
Has Abstractpub_date
2002-06-01 00:00:00pages
1115-20issue
6eissn
0263-6352issn
1473-5598journal_volume
20pub_type
杂志文章abstract:BACKGROUND:The usefulness of the hypertensive retinopathy classification by Keith-Wagener-Barker (KWB) in clinical practice remains controversial. The simplified Mitchell-Wong grading, combining the two initial KWB' grades in one stage, is proposed as an alternative method; both systems are poorly validated regarding t...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000000702
更新日期:2015-11-01 00:00:00
abstract:OBJECTIVE:Various studies have suggested that a delay in the time between diagnosing hypertension and its correct control (D-C, diagnostic-control time) is linked to a worse prognosis. The aim of this study was to examine the relationship between D-C time and all-cause mortality, or the incidence of cardiovascular even...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001896
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVE:Daily exposure to air-jet stress (AJS) causes sustained elevations of blood pressure in borderline hypertensive rats (BHR). It is known that the renin-angiotensin system is activated during episodes of behavioral stress, and the purpose of this study was to assess the involvement of renin-angiotensin system i...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1995-12-01 00:00:00
abstract::Experimental models of genetic hypertension are used to develop paradigms to study human essential hypertension while removing some of the complexity inherent in the study of human subjects. Since 1991 several quantitative trait loci responsible for blood pressure regulation have been identified in various rat crosses...
journal_title:Journal of hypertension
pub_type: 杂志文章,评审
doi:10.1097/00004872-199816121-00003
更新日期:1998-12-01 00:00:00
abstract:BACKGROUND:We have previously described anatomical changes in pulmonary blood flow distribution in chronic hypoxic rats, associated with pulmonary arterial hypertension (PAH). METHOD:In this study, we utilized synchrotron radiation microangiography to compare these changes in pulmonary blood flow with a PAH-model indu...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e32832af6a1
更新日期:2009-07-01 00:00:00
abstract:OBJECTIVE:To evaluate the prognostic significance of cardiovascular risk factors including 24-h ambulatory blood pressure level and rhythm for all-cause mortality in type 2 diabetic patients. METHODS:In a prospective observational study, 104 patients with type 2 diabetes were followed: 51 patients with diabetic nephro...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3282f06428
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVES:Calcium blockade has been reported to inhibit the contraction of the vascular smooth muscle and the liberation of vasoactive substances by endothelial cells. We tested the effects of calcium blockade on the mechanical properties of the carotid artery in normotensive Wistar-Kyoto (WKY) rats and spontaneously ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199301000-00009
更新日期:1993-01-01 00:00:00
abstract:PURPOSE:Cardiovascular reactivity to mental stress has been used as a tool to predict short-term hypertension risk in adults but the impact of cardiovascular reactivity in childhood on hypertension in adulthood is unknown. Using the 1970 British Cohort study, we examined the association between pulse rate reactivity in...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001023
更新日期:2016-09-01 00:00:00
abstract:OBJECTIVE(S):To study the changes in macrophage inducible nitric oxide synthase (iNOS) activity, plasma levels of nitrite, lipid peroxidation (LPO) and melatonin in human essential hypertension before and 6 months after 4 mg/day lacidipine treatment. DESIGN:The study was carried out in a total of 25 subjects--11 healt...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1097/00004872-200403000-00027
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:Several cytokines and adhesion molecules released from endothelium play an important role in inflammation, immune responses, and probably atherogenesis. OBJECTIVE:To determine whether the transcription factor nuclear factor-kappaB mediated expression of these genes involved in the inflammatory response of e...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199816070-00013
更新日期:1998-07-01 00:00:00
abstract:OBJECTIVE:Phenotypic transformation of adventitial fibroblasts is important in the pathogenesis of hypertension. This study was designed to determine whether fibronectin type III domain containing 5 (FNDC5) alleviates the phenotypic transformation of adventitial fibroblasts in hypertension and the underlying mechanisms...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001654
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Little data is available concerning the prognostic implications of renal function abnormalities, their evolution over time and the effects of nifedipine on such abnormalities in patients with stable angina pectoris. METHODS:The previously published ACTION trial compared long-acting nifedipine GITS 60 mg onc...
journal_title:Journal of hypertension
pub_type: 杂志文章,随机对照试验
doi:10.1097/HJH.0b013e3281c49d93
更新日期:2007-08-01 00:00:00
abstract::To evaluate factors influencing hemodynamic responses to psychological and physical stress, 117 normotensive college students were studied. The standardized tests included arithmetic, Stroop word-color, mirror draw, isometric handgrip and cold pressor challenges. The responses of blood pressure and pulse during the te...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1097/00004872-199010000-00012
更新日期:1990-10-01 00:00:00
abstract:OBJECTIVE:To assess the dilatory effectiveness of nitric oxide donors in resistance arteries of patients with arterial hypertension in comparison with that in those of normotensive controls. BACKGROUND:Endothelium-dependent vasodilation has been demonstrated to be impaired in arterial hypertension. Besides disturbance...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199607000-00014
更新日期:1996-07-01 00:00:00
abstract:OBJECTIVES:It is well known that among hypertensive patients, an increased left ventricular mass (LVM) is a powerful predictor of cardiovascular morbidity and mortality. However, the mechanisms underlying LVM in hypertension are not completely understood, as the absolute value of blood pressure and other risk factors a...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e3283581f7e
更新日期:2012-11-01 00:00:00
abstract::We have studied the effect of parathyroidectomy on the systolic blood pressure, cardiovascular reactivity and the contractile response of isolated aorta to norepinephrine in the genetically hypertensive Lyon rat strain (LH), parathyroidectomized hypertensive Lyon rats (LH-PTX) and parathyroidectomized hypertensive Lyo...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199012000-00007
更新日期:1990-12-01 00:00:00
abstract::Haemorheological characteristics were measured in a group of 52 patients with essential arterial hypertension (HT), and were compared with those of a group of normotensive subjects. The relationships between the arterial blood pressure (BP), the echocardiographic indices of left ventricular hypertrophy (LVH), and the ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:
更新日期:1988-04-01 00:00:00
abstract:OBJECTIVE:To determine if the contribution of the sympathetic nervous system to blood pressure could be evidenced by low-frequency oscillations of systolic blood pressure (LF(SBP)), reflecting vascular sympathetic modulation, or by the decrease in blood pressure after autonomic blockade. DESIGN:We studied multiple sys...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章
doi:10.1097/00004872-200309000-00017
更新日期:2003-09-01 00:00:00
abstract:BACKGROUND:In a previous study, we found that neonatal sympathectomy prevented the development of angiotensin II (ANG II)-induced hypertension but not the development of structural changes in small mesenteric arteries. OBJECTIVES:To investigate further the dissociation between hypertension and structural vascular chan...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-199816010-00012
更新日期:1998-01-01 00:00:00
abstract:OBJECTIVE:Patients with essential hypertension exhibit several red blood cell (RBC) ion transport abnormalities, insulin resistance (IR) and increased risk of developing type 2 diabetes. The aims of this study were to assess RBC ion transport activities under basal conditions and to test the in vivo effect of acute hyp...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200307000-00021
更新日期:2003-07-01 00:00:00
abstract:OBJECTIVES:Rapid growth velocity in early life may be a risk factor for obesity, elevated blood pressure, and adverse metabolic markers in childhood, but results are not consistent. We analysed the association between peak growth velocity during the first 2 years of life and blood pressure, fasting glucose and insulin ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0b013e328352d699
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVES:Renal denervation (RDN) can reduce sympathetic activity and blood pressure (BP) in patients with hypertension. The effects on resting and ambulatory heart rate (HR), also regulated by the sympathetic nervous system, are not established. METHODS:Herein, we report 12-month outcomes from the Global SYMPLICITY ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001085
更新日期:2016-12-01 00:00:00
abstract:OBJECTIVE:To verify the benefit of renin-angiotensin system blockade in hypertension, the effects of 24 weeks' losartan and ramipril treatment, both alone and in combination, on urinary albumin excretion (UAE) and circulating transforming growth factor beta1 (TGF beta1) have been evaluated in hypertensive subjects with...
journal_title:Journal of hypertension
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/01.hjh.0000160225.01845.26
更新日期:2005-03-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to identify, describe, and evaluate the available cardiovascular disease risk prediction models developed or validated in the hypertensive population. METHODS:MEDLINE and the Web of Science were searched from database inception to March 2019, and all reference lists of included arti...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000002442
更新日期:2020-09-01 00:00:00
abstract:OBJECTIVE:Blood pressure (BP) control is the most established practice for preventing the progression of chronic kidney disease (CKD). We examined the BP control and nocturnal dipping pattern changes in hypertensive patients with CKD and their effects on target organ damages. METHODS:We recruited 378 hypertensive CKD ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001185
更新日期:2017-03-01 00:00:00
abstract:OBJECTIVE:Recently, an apparently novel, specific endothelin-1 inactivating metalloendopeptidase (ET-1 peptidase) has been isolated from the rat kidney. In this study we attempted to determine whether the same or a similar peptidase is present in the human kidney, and whether the enzyme is excreted into the urine. The ...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200018040-00018
更新日期:2000-04-01 00:00:00
abstract:OBJECTIVE:Excess oxidative stress is one of the major metabolic abnormalities on vascular walls in hypertension and atherosclerosis. In order to further elucidate the endothelial function under oxidative stress, the effect of hydrogen peroxide (H2O2) on expression of two novel endothelium-derived vasorelaxing peptides,...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200018050-00010
更新日期:2000-05-01 00:00:00
abstract:BACKGROUND:Left ventricular (LV) remodeling and aortic stiffness have independent predictive value for all causes and cardiovascular mortality. Because elastic properties of the arterial wall vary along the aortic pathway, we hypothesized that local and regional aortic stiffness could differently impact on LV remodelin...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/HJH.0000000000001597
更新日期:2018-03-01 00:00:00
abstract:OBJECTIVE:To investigate gender-dependent difference in the free cytosolic calcium concentration ([Ca2+ ]i ) response to angiotensin II (Ang II) in vascular smooth muscle cells (VSMC) isolated from spontaneously hypertensive rats (SHR). To further evaluate this gender-dependent difference by studying the role of thapsi...
journal_title:Journal of hypertension
pub_type: 杂志文章
doi:10.1097/00004872-200211000-00021
更新日期:2002-11-01 00:00:00
abstract:BACKGROUND:Hypertension control is often inadequate in HIV patients. In a contemporary, nationwide cohort of Italian HIV-infected adults, we assessed time trends in hypertension prevalence, awareness, treatment, and control. We also evaluated predictors of cardiovascular events and of new-onset hypertension. METHODS:M...
journal_title:Journal of hypertension
pub_type: 杂志文章,多中心研究
doi:10.1097/HJH.0000000000001150
更新日期:2017-02-01 00:00:00