Abstract:
BACKGROUND:Vitamin D deficiency, sympathetic activation and endothelial dysfunction are associated with increased cardiovascular risk in patients with chronic kidney disease (CKD). Studies have so far failed to establish the role of vitamin D and vitamin D receptor activator (VDRA) treatment in moderate CKD. This trial was designed to assess whether VDRA treatment can ameliorate sympathetic activation and macro- and microvascular dysfunction in non-diabetic patients with moderate CKD. METHODS:We conducted a randomized controlled double-blind trial using placebo, 1 or 2 μg of paricalcitol, a VDRA, for 3 months. We assessed muscle sympathetic nerve activity (MSNA) by microneurography, pulse wave velocity (PWV) by tonometry, flow mediated vasodilatation (FMD) by brachial ultrasound, skin microcirculation assessed by iontophoresis and capillary blood velocity (CBV) by videophotometric capillaroscopy. RESULTS:Thirty-six patients with a mean age of 65 years and mean estimated glomerular filtration rate of 40 ml/min/1.73 m2 were included. We found a significant decline in endothelial function after 3 months, except in the group receiving 2 μg of paricalcitol. The higher dose (2 μg) seemed to attenuate the decline in microvascular endothelial function, assessed by iontophoresis of acetylcholine (p=0.06 for all groups, p=0.65 for the 2 μg group) and for FMD (p=0.006 for all groups, p=0.54 for the 2 μg group). We found a borderline significance (p=0.05) for improved CBV in the treated groups. We found no significant changes between treatments in MSNA, PWV or albuminuria. CONCLUSIONS:Endothelial function declined significantly over 3 months in patients with moderate CKD, and this decline could be ameliorated by VDRA treatment (NCT01204528).
journal_name
Am J Nephroljournal_title
American journal of nephrologyauthors
Lundwall K,Jörneskog G,Jacobson SH,Spaak Jdoi
10.1159/000441364subject
Has Abstractpub_date
2015-01-01 00:00:00pages
265-73issue
4eissn
0250-8095issn
1421-9670pii
000441364journal_volume
42pub_type
杂志文章,随机对照试验abstract::The pathogenesis of calciphylaxis, a potentially life-threatening condition, is not well understood. Several factors such as end-stage renal disease (azotemia), hyperparathyroidism, hyperphosphatemia, hypercalcemia, a high calcium-phosphate product, and the use of steroids and cytotoxic drugs after kidney transplantat...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000169021
更新日期:1996-01-01 00:00:00
abstract:AIM:To study the role of the caliceal system in urine flow. METHODS:Eight patients (6 men, 2 women; mean age 42.6 +/- 7.6 years) with an upper polar renal mass (6 renal cysts; 2 hypernephromas) which did not encroach on the pelvicaliceal system were studied. After mass removal, a manometric catheter was introduced int...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000013391
更新日期:1998-01-01 00:00:00
abstract::Hyperlipidemia is common in patients with glomerular proteinuria. It may contribute to atherosclerotic complications and accelerate glomerular damage. Early trials of the fibric acid derivative clofibrate led to a myositis syndrome causing many nephrologists to abandon attempts at treatment of nephrotic hyperlipidemia...
journal_title:American journal of nephrology
pub_type: 临床试验,杂志文章,评审
doi:10.1159/000168204
更新日期:1990-01-01 00:00:00
abstract::The medical history of salt begins in ancient times and is closely related to different aspects of human history. Salt may be extracted from sea water, mineral deposits, surface encrustations, saline lakes and brine springs. In many inland areas, wood was used as a fuel source for evaporation of brine and this practic...
journal_title:American journal of nephrology
pub_type: 历史文章,杂志文章
doi:10.1159/000168759
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND/AIMS:Thiazolidinediones (TZD) are ligands known to bind to and activate the nuclear peroxisome proliferator-activated receptor gamma (PPARgamma), and are currently used as insulin sensitizers in type 2 diabetes. Recently, several studies have shown that TZD may have a role in renal protection in various expe...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000105125
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND/AIMS:Ischemia/reperfusion (I/R) injury is characterized by cytoskeletal reorganization and loss of polarity in proximal tubule epithelial cells. Previously, we showed that myofibrillogenesis regulator (MR)-1 promoted actin organization in cardiomyocytes. MR-1 is also expressed in the kidney. METHODS:In this...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000360141
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:The proinflammatory cytokine S100A12 (also known as EN-RAGE) is associated with cardiovascular morbidity and mortality in hemodialysis patients. In the current study, we tested the hypothesis that S100A12 expressed in vascular smooth muscle in nonatherosclerosis-prone C57BL/6J mice on normal rodent chow diet...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000324693
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Although there is a very high mortality rate (>50%) with acute renal failure (ARF) in the intensive care unit (ICU), there is no general consensus on the best dialysis treatment for this condition. METHODS:We surveyed by mail questionnaire, all adult academic and community registered Canadian nephrology cen...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000046671
更新日期:2002-01-01 00:00:00
abstract::Hepcidin is a key regulator of iron metabolism. In this study, we examined whether measurement of hepcidin is useful in assessing recombinant human erythropoietin (rHuEPO) responsiveness in regular hemodialysis (HD) patients in a cross-sectional fashion. We examined the association between serum prohepcidin, a prohorm...
journal_title:American journal of nephrology
pub_type: 临床试验,杂志文章
doi:10.1159/000109968
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:While chronic dialysis treatment has been suggested to increase pulmonary pressure values, right ventricular dysfunction (RVD) is a major cause of death in patients with end-stage renal disease. We investigated the impact of different dialysis treatments on right ventricular function. METHODS:We examined 22...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000320755
更新日期:2010-01-01 00:00:00
abstract::Several medical inventors in Europe and North America brought the artificial kidney (hemodialysis) to practical usefulness in the late 1940s, but there were very few early successes. It was used at first for only desperate cases of acute renal failure. Renal authorities in the 'metabolic' tradition favored newly quant...
journal_title:American journal of nephrology
pub_type: 历史文章,杂志文章
doi:10.1159/000169117
更新日期:1997-01-01 00:00:00
abstract::Chronic kidney disease affects approximately 10% of the world's adult population: it is within the top 20 causes of death worldwide, and its impact on patients and their families can be devastating. World Kidney Day and International Women's Day in 2018 coincide, thus offering an opportunity to reflect on the importan...
journal_title:American journal of nephrology
pub_type: 社论
doi:10.1159/000486408
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Three million people in the United States are estimated to have chronic kidney disease (CKD). Management of these CKD patients in the outpatient primary care clinic setting has not been well studied. HYPOTHESIS:Primary care management of CKD can be assessed and opportunities for improvement can be identifie...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000066296
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND/AIMS:The present study tested the hypothesis that chronic hypoxia adversely affects renal development in the ovine fetus. METHODS:Kidneys were collected from near-term fetuses of pregnant ewes maintained at sea level or high altitude (3,801 m, PaO(2): approx. 60 mm Hg) for 110 days (n = 6 for each group). ...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000259901
更新日期:2010-01-01 00:00:00
abstract::A patient with unilateral gross hematuria was found to have mesangial proliferation and IgM deposition on renal biopsy, consistent with the entity of primary renal hematuria. This case refutes previous assumptions that renal biopsy is normal in patients with unilateral hematuria. Glomerular lesions may be more common ...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000167127
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:We determined the familial aggregation of end-stage renal disease (ESRD) in a large, population-based sample of incident ESRD cases to assess the feasibility of developing a targeted screening and prevention program directed at members of families at high risk for kidney disease. METHODS:Between January 1, ...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000088491
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND/AIMS:Anthropometric measures such as body mass index (BMI) and waist circumference (WC) have differential associations with incident chronic kidney disease (CKD) and mortality. We examined the associations of BMI and WC with various CKD complications. METHODS:We conducted a cross-sectional analysis of 2,853...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000341862
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:Patients with chronic kidney disease (CKD) show increased cardiovascular morbidity. We hypothesized that vascular properties which can be routinely evaluated noninvasively are related to different stages of CKD and their clinical and biochemical characteristics. METHODS:Arterial vascular properties were qua...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000110091
更新日期:2008-01-01 00:00:00
abstract::During the period from April 4, 1988, to April 20, 1988, nine pyrogenic reactions and five gram-negative bacteremias occurred in 11 patients undergoing dialysis. All pyrogenic reactions and gram-negative bacteremias occurred among patients in whom a reprocessed dialyzer was used. The rate of pyrogenic reactions or bac...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000168155
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:Telomere attrition is a novel risk factor for cardiovascular disease. Studies of telomere length in relation to kidney function are limited. We explored the association of kidney function with telomere length and telomere shortening. METHODS:The Heart and Soul Study is a longitudinal study of patients with ...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000343495
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND/AIMS:The susceptibility of patients on maintenance hemodialysis (MHD) to infections is a major cause of mortality and morbidity. Natural resistance-associated macrophage protein 1 (Nramp1) regulates intracellular pathogen proliferation, and its mRNA expression is highest in polymorphonuclear leukocytes (PMNL...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000337742
更新日期:2012-01-01 00:00:00
abstract:PURPOSE:To explore the association between CYP3A4 and CYP3A5 gene polymorphisms and blood pressure response to amlodipine among participants from the African-American Study of Kidney Disease and Hypertension Trial randomized to amlodipine (n = 164). METHODS:Cox proportional hazards models were used to determine the ri...
journal_title:American journal of nephrology
pub_type: 杂志文章,随机对照试验
doi:10.1159/000258688
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Chronic kidney disease (CKD) impairs intestinal barrier function which by allowing influx of noxious products causes systemic inflammation. We have recently shown that intestinal barrier dysfunction in CKD is due to degradation of epithelial tight junction (TJ) which is, in part, mediated by influx of urea a...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000351171
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:This study aimed at evaluating the after effects of a single bout of aerobic exercise on muscle sympathetic nerve activity (MSNA), peripheral vascular resistance and blood pressure (BP) in stages 2-3 chronic kidney disease (CKD) patients. We hypothesized that CKD patients present a greater decline in these v...
journal_title:American journal of nephrology
pub_type: 杂志文章,随机对照试验
doi:10.1159/000445443
更新日期:2016-01-01 00:00:00
abstract::Maimonides (Moses ben Maimon) was born in 1135 in Cordoba, the son of a Jewish rabbi. After a seminomadic upbringing in Spain and North Africa during the rule of the Almohades, Maimonides settled in Fostate (Old Cairo), where he became renowned as a physician, eventually being appointed as court physician to Saladin a...
journal_title:American journal of nephrology
pub_type: 传,历史文章,杂志文章
doi:10.1159/000168739
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND/AIM:Nephropathy after ingestion of Chinese herbs is known as a rapidly progressive form of interstitial renal fibrosis after a slimming regimen containing aristolochic acid that was identified first in Belgium. Intake of traditional Chinese herbal medicines is very popular in Taiwan. So we looked for similar...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000046647
更新日期:2001-11-01 00:00:00
abstract::This study was carried out to find out whether Ramadan fasting would affect the renal function in kidney transplant recipients with normal or impaired graft function. Twenty-three transplant recipients, 17 with a normal function and 6 with an impaired but stable function with plasma creatinine levels not exceeding 300...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000013316
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:There is a higher risk of gastrointestinal (GI) bleeding in patients treated with dabigatran versus warfarin. We analyzed the impact of renal function on the relative risk of bleeding in patients converted to dabigatran. METHODS:Patients aged ≥65 years who received anticoagulation with warfarin for a minimu...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000446848
更新日期:2016-01-01 00:00:00
abstract::Recent studies have focused attention on the possible role of zinc depletion in the pathogenesis of uremic symptoms such as dysgeusia and impotence. The present studies were undertaken to evaluate the prevalence of zinc deficiency and abnormalities of zinc metabolism in patients with end-stage renal disease. A total o...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000167247
更新日期:1986-01-01 00:00:00
abstract::We have recently described that in the erythrocytes from uremic patients on chronic hemodialysis, the pentose-phosphate shunt is defective, the membrane concentrations of malonyldialdehyde, resulting from peroxidation of polyunsaturated fatty acids in the membranes themselves, are increased, and the concentrations of ...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000167061
更新日期:1986-01-01 00:00:00