Abstract:
BACKGROUND/AIMS:Excessive phosphate concentrations trigger vascular calcification, an active process promoted by osteoinduction of vascular smooth muscle cells (VSMCs) with increased expression and activity of transcription factor RUNX2 (Core-binding factor α1, CBFA1), alkaline phosphatase (ALPL), TGFß1, transcription factor NFAT5, and NFAT5-sensitive transcription factor SOX9. The osteoinductive signaling and vascular calcification of hyperphosphatemic klotho-hypomorphic mice could be reversed by treatment with NH4Cl, effects involving decrease of TGFß1 and inhibition of NFAT5-dependent osteoinductive signaling. Known effects of NH4Cl include alkalinization of acidic cellular compartments. The present study explored whether osteo-/chondrogenic signaling could be influenced by alkalinization of acidic cellular compartments following inhibition of the vacuolar H+ ATPase with bafilomycin A1 or following dissipation of the pH gradient across the membranes of acidic cellular compartments with methylamine. METHODS:Primary human aortic smooth muscle cells (HAoSMCs) were treated with high phosphate to trigger osteo-/chondrogenic signaling and calcification in the absence or presence of bafilomycin A1 or methylamine. Calcium content was determined using a QuantiChrom Calcium assay, ALP activity by a colorimetric assay and transcript levels by quantitative RT-PCR. RESULTS:High phosphate increased significantly the calcium deposition, CBFA1 and ALPL mRNA expression as well as alkaline phosphatase activity in HAoSMCs, all effects ameliorated by both, bafilomycin A1 and methylamine. High phosphate further significantly up-regulated the mRNA levels of TGFB1, NFAT5 and SOX9, effects significantly blunted by additional treatment with bafilomycin A1 or methylamine. Treatment of HAoSMCs with human TGFß1 protein or high phosphate up-regulated NFAT5, SOX9, CBFA1 and ALPL mRNA expression to similarly high levels which could not be further increased by combined treatment with high phosphate and TGFß1. Bafilomycin A1 failed to reverse the osteo-/chondrogenic signaling triggered by high phosphate together with TGFß1. CONCLUSIONS:Inhibition of the vacuolar H+ ATPase or dissipation of the pH gradient across the membranes of acidic cellular compartments both disrupt osteo-/chondrogenic signaling and calcium deposition in VSMCs, observations supporting the hypothesis that vascular calcification requires acidic cellular compartments.
journal_name
Kidney Blood Press Resjournal_title
Kidney & blood pressure researchauthors
Alesutan I,Musculus K,Castor T,Alzoubi K,Voelkl J,Lang Fdoi
10.1159/000368524subject
Has Abstractpub_date
2015-01-01 00:00:00pages
490-9issue
5eissn
1420-4096issn
1423-0143pii
000368524journal_volume
40pub_type
杂志文章abstract:AIMS:The aim of this study was to screen several novel genes associated with renal cell carcinoma (RCC), and analyze the gene functions and signal pathways which were critical to RCCs with DNA microarray. METHODS:The gene expression profile of GSE781 was downloaded from Gene Expression Omnibus database, including 9 RC...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000355726
更新日期:2013-01-01 00:00:00
abstract::NGAL (neutrophil gelatinase-associated lipocalin) is an acute phase protein, participating in antibacterial immunity. NGAL forms a complex with metalloproteinase 9 (MMP-9), thereby increasing its activity and preventing its degradation. NGAL is freely filtered through the glomerular membrane and reabsorbed by endocyto...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章,评审
doi:10.1159/000368474
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND/AIMS:Puumala virus causes nephropathia epidemica (NE), a milder form of hemorrhagic fever with renal syndrome that occurs in Central and Northern Europe. Several studies have sought to identify risk factors for severe NE. However, elevated procalcitonin (PCT) levels have not previously been investigated as a...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000368479
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Fatty acid-bearing albumin [FA(+) albumin] exerts more deleterious effects in tubular cells than albumin alone. We investigated the effect of FA(+) albumin on the vascular cell adhesion molecule-1 (VCAM-1) expression and elucidated the underlying signaling pathways. We further examined the effect of L-carnit...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000289576
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND/AIMS:To gain insight into the effect of arginine vasopressin (AVP) on renal hemodynamics in hypertensive rats, we investigated the vasoconstrictive response to AVP on total renal blood flow (RBF) and total and zonal glomerular filtration rate (GFR) in young and old spontaneously hypertensive rats (SHR). A hy...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000054225
更新日期:2001-01-01 00:00:00
abstract:INTRODUCTION:Renal dysfunction is a frequent complication in patients suffering from β-thalassemia major (β-TM). The aim of this study was to analyze the renal function and urine metabolomic profile of β-TM patients undergoing transfusions and deferasirox (DFX) therapy, in order to better characterize and shed light on...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000507369
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND/AIMS:To determine the effect of arterial blood pressure (BP) reduction on endocan and soluble cell adhesion molecules' (sCAM) plasma concentration and expression of their ligands on circulatory leukocyte subpopulations. METHODS:24 hypertensive subjects of both sexes (age: 53±8 yrs) were treated with Ca-chan...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000350064
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND/AIMS:Chronic kidney disease (CKD) is one of the major complications of hypertension. It is not only associated with the future burden of end-stage renal disease but also affects mortality and cardiovascular outcomes caused by hypertension. To help understand the pathogenesis and early prevention of progressi...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000443443
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Metabolic acidosis may be diagnosed as chronic (cMA) if it persists for at least 5 days, although an exact definition has not been provided by any guidelines yet. The most common cause is CKD; numerous less-known diseases can also account for cMA. SUMMARY:In recent years, CKD-associated cMA has been propose...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章,评审
doi:10.1159/000510829
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Cardiovascular complications are a major cause of morbidity and mortality in chronic renal failure (CRF) patients. Chronic anemia is a complication of CRF and a cardiovascular risk factor per se. It was the aim of the present study to clarify whether uremia and anemia are additive or supra-additive with resp...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000317943
更新日期:2010-01-01 00:00:00
abstract::Angiotensin-(1-7), (Ang-(1-7)), a metabolite of Ang II and /or Ang I, was infused into the renal artery (i.r.a) of anesthetized dogs in order to demonstrate its possible direct renal action. The dose administered, 15 Ig/kg BW/min in isotonic saline (0.072 ml/kg BW/min) throughout the experiment, did not influence the ...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000025959
更新日期:2000-01-01 00:00:00
abstract::Despite developments in the technology of dialysis procedures and improvements in the understanding of systemic derangements related to chronic kidney disease (CKD), cardiovascular disease is the major cause of death. Unfortunately, the leading subset of cardiovascular disease death is sudden cardiac death (SCD). To d...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章,评审
doi:10.1159/000326904
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND/AIMS:To date, there is no imaging technique to assess tubular function in vivo. Blood oxygen level-dependent magnetic resonance imaging (BOLD MRI) measures tissue oxygenation based on the transverse relaxation rate (R2*). The present study investigates whether BOLD MRI can assess tubular function using a tub...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000485600
更新日期:2017-01-01 00:00:00
abstract:INTRODUCTION:Cardiovascular disease is one of the main causes of morbidity and mortality in patients with autosomal dominant polycystic kidney disease (ADPKD). Autonomic dysfunction is associated with an increased risk for all cardiovascular events in the general population and can be evaluated with heart rate variabil...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000502419
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND/AIMS:Interleukin (IL)-18, a member of the IL-1 cytokine superfamily, is recognized as an important regulator of immune responses. The aim of our study was to investigate the IL-18 levels in serum and urine from children with idiopathic nephrotic syndrome (INS) during relapse and remission, and to evaluate th...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000124284
更新日期:2008-01-01 00:00:00
abstract::Patients affected by end-stage renal disease (ESRD) show quite lower physical activity and exercise capacity when compared to healthy individuals. In addition, a sedentary lifestyle is favoured by lack of a specific counseling on exercise implementation in the nephrology care setting. Increasing physical activity leve...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章,评审
doi:10.1159/000355787
更新日期:2014-01-01 00:00:00
abstract::MicroRNAs (miRNAs) are short, single-stranded, noncoding RNAs that modulate many key biological processes by simultaneously suppressing multiple target genes. Among them, miR-26a, a conserved miRNA among vertebrates, is highly expressed in various tissues. Accumulating evidence demonstrates that miR-26a plays pivotal ...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章,评审
doi:10.1159/000499646
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND/AIMS:To identify the relationship between systemic and local hemodynamics, as well as segmental biomechanical properties in a musculocutaneous resistance artery during angiotensin-II hypertension and its recovery. METHODS:Rats were infused with angiotensin-II using implanted osmotic minipumps (ALZET 2ML4, 1...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000285847
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND/AIMS:Apparent treatment resistant hypertension (aTRH) is highly prevalent in patients with type 2 diabetes (T2D) and chronic kidney disease (CKD). The impact of aTRH and achievement of recommended blood pressure (BP) values on the rate of glomerular filtration rate (eGFR) loss in CKD patients is poorly known...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000488255
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND/AIMS:IgA nephropathy is the most prevalent form of primary glomerulonephritis worldwide. Among patients with kidney disease, hypertension is one of the most important risk factors of disease progression. Considering the limited evidence regarding the appropriate blood pressure (BP) goal for patients with IgA...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章,多中心研究
doi:10.1159/000495636
更新日期:2018-01-01 00:00:00
abstract::Although primary cilia are increasingly recognized to play sensory roles in several cellular systems, their role in vascular smooth muscle cells (VSMCs) has not been defined. We examined in situ position/orientation of primary cilia and ciliary proteins in VSMCs and tested the hypothesis that primary cilia of VSMCs ex...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000132462
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND/AIMS:This study aimed to investigate the potential beneficial anti-proteinuric effect of an add-on aldosterone blockade and the impact of the aldosterone escape phenomenon. METHODS:We retrospectively analyzed data of 304 patients with persistent proteinuria, who were administered spironolactone (25 mg/day) ...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000368470
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Hypertension in the elderly is commonly characterized by an elevation of pulse pressure. With regard to advanced arteriosclerosis and limited physical fitness, doubt was casted whether elderly patients still achieve relevant cardiovascular benefits by physical exercise. The present work examines the impact o...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章,随机对照试验
doi:10.1159/000104093
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND/AIMS:High mobility group box 1 (HMGB1) is an important mediator of the inflammatory response. It has been implicated in the pathogenesis of autoimmune diseases, atherosclerosis, and obesity. However, the effects of HMGB1 on diabetic nephropathy remain unclear. Here, we investigated the potential roles and me...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000485045
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:The antiproteinuric effect of angiotensin-converting enzyme (ACE) inhibitors appears to vary depending on the ACE insertion (I)/deletion (D) genotype in non-diabetic nephropathy. This interaction may be overcome by using an angiotensin II receptor blocker. We evaluated the short-term antiproteinuric effect o...
journal_title:Kidney & blood pressure research
pub_type: 临床试验,杂志文章
doi:10.1159/000095736
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND:1,25-Dihydroxyvitamin D(3) is mainly synthesized by renal proximal tubular cells. More recently, it has been shown to affect cell growth and TGF-beta(1) synthesis in glomerular and tubular renal cells in vitro, and to prevent glomerulosclerosis in vivo in subtotally nephrectomized rats. The mechanisms involv...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000054213
更新日期:2001-01-01 00:00:00
abstract:BACKGROUND/AIMS:This study aimed to report the clinical efficacy of continuous renal replacement therapy (CRRT) in combination with ultrasound-guided percutaneous transhepatic gallbladder drainage (PTGD) (CRRT+PTGD) in the treatment of acute severe biliary pancreatitis (ASBP). METHODS:Between January 2010 and January ...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000485437
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND/AIMS:ET-1 has independent effects on blood pressure regulation in vivo, it is involved in tubular water and salt excretion, promotes constriction of smooth muscle cells, modulates sympathetic nerve activity, and activates the liberation of nitric oxide. To determine the net effect of these partially countera...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章,meta分析,评审
doi:10.1159/000450567
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND/AIMS:Kidney function is critical for homocysteine (Hcy) clearance, and plasma Hcy levels are frequently increased in patients with renal failure. Microalbuminuria (MAU) is an important marker of early renal damage caused by hypertension. At present, there is insufficient evidence on the relationship between ...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章
doi:10.1159/000486013
更新日期:2017-01-01 00:00:00
abstract:OBJECTIVES:This prospective, randomized study was to investigate the role of nicorandil in the prevention of contrast-induced nephropathy (CIN) in patients with chronic renal dysfunction undergoing an elective coronary procedure. METHODS:A total of 252 eligible patients were enrolled in this study and allocated into t...
journal_title:Kidney & blood pressure research
pub_type: 杂志文章,随机对照试验
doi:10.1159/000503160
更新日期:2019-01-01 00:00:00