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 prohormone of hepcidin, and rHuEPO dosage and the rHuEPO/hemoglobin (Hb) ratio in 75 HD patients. We also semiquantatively measured the peak intensity of serum hepcidin-25, the major form of mature hepcidin, in 24 HD patients by using surface-enhanced laser desorption ionization time of flight time mass spectrometry, and compared those between rHuEPO-hyporesponsive (rHuEPO 192 +/- 10 [126-252] IU/kg/week, n = 15) and responsive patients (rHuEPO 40 +/- 9 [0-81] U/kg/week, n = 9). A significant but weak relationship was found between serum prohepcidin and rHuEPO dosage (r = 0.24, p < 0.05) and rHuEPO/Hb ratio (r = 0.22, p = 0.06). However, prohepcidin did not become an indicator of hematopoietic parameters by multiple regression analysis. Serum hepcidin-25 intensity was significantly and positively correlated with ferritin (r = 0.51, p < 0.01) but not with log-transformed C-reactive protein. There was no difference in the intensities of serum hepcidin-25 between rHuEPO-hyporesponsive and responsive patients (64 +/- 10 vs. 52 +/- 16 AU, p = NS). It follows from these findings that the assessment of serum hepcidin using currently available assays was not valid in predicting rHuEPO responsiveness in chronic HD patients.
journal_name
Am J Nephroljournal_title
American journal of nephrologyauthors
Kato A,Tsuji T,Luo J,Sakao Y,Yasuda H,Hishida Adoi
10.1159/000109968subject
Has Abstractpub_date
2008-01-01 00:00:00pages
115-21issue
1eissn
0250-8095issn
1421-9670pii
000109968journal_volume
28pub_type
临床试验,杂志文章abstract:BACKGROUND/AIMS:Patients with chronic kidney disease (CKD) have a high prevalence of periodontal disease that may predispose to tooth loss and inflammation. The goal of this study was to test the hypotheses that a genetic rat model of progressive CKD would exhibit altered oral bone properties and that treatment with ei...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000356335
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND/AIMS:Current status of primary hyperoxaluria (PH) has not been surveyed in Japan. METHODS:Japanese patients with PH were reviewed in the published literature. RESULTS:Fifty-nine patients were diagnosed as PH from 1962 to 2003. The median ages both at diagnosis and at the onset of initial symptoms were 17 (...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000086361
更新日期:2005-05-01 00:00:00
abstract:BACKGROUND:Hepatitis C virus (HCV) infection is highly prevalent among patients on hemodialysis (HD) and is associated with poor prognosis. Treatment with interferon and ribavirin is poorly tolerated, and few data are available on the impact of new direct-acting antivirals (DAAs). This study was intended to analyze the...
journal_title:American journal of nephrology
pub_type: 杂志文章,多中心研究
doi:10.1159/000454819
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Acute kidney injury (AKI) occurs frequently in the intensive care unit. A primary cause is renal ischemia/reperfusion (I/R) injury, during which excess reactive oxygen species (ROS) are produced. ROS subsequently damage renal cells, leading to the development of AKI. Here, we investigated whether renal I/R i...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000327820
更新日期:2011-01-01 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/AIMS:Gastrointestinal (GI) symptoms in renal transplant recipients may be caused due to mycophenolic acid (MPA) toxicity. Using small bowel capsule endoscopy (SBCE) we examined the impact of conversion from Mycophenolate Mofetil (MMF) to enteric-coated formulation of Mycophenolate Sodium (EC-MPS) given to tr...
journal_title:American journal of nephrology
pub_type: 临床试验,杂志文章
doi:10.1159/000365360
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Angiotensin converting enzyme inhibitors (ACEi) and angiotensin receptor blockers (ARB) are increasingly used in uremic patients (pts). However, their effect on serum potassium (sK) concentrations in anuric pts on chronic hemodialysis treatment (HD) is controversial. The aim of the study was to evaluate sK b...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000491552
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Estimating total body water (TBW) is crucial in determining dry weight and dialytic dose for hemodialysis patients. Several anthropometric equations have been used to predict TBW, but a more accurate method is needed. We developed an artificial neural network (ANN) to predict TBW in hemodialysis patients. M...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000088279
更新日期:2005-09-01 00:00:00
abstract:BACKGROUND:It is uncertain whether kidneys from marginal donors are suitable for live kidney transplantation. In deceased donor kidneys, tubular cell senescence affects allograft function. However, the degree of cell senescence in a living donor kidney with marginal factors has not been reported. In this study, we asse...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000485845
更新日期:2018-01-01 00:00:00
abstract::Skin ulceration is a well-characterized thrombotic complication of the heparin-induced thrombocytopenia (HIT) syndrome. We present the case of a 73-year-old diabetic woman nearing end-stage renal failure who developed extensive upper thigh, abdominal and buttock ulceration following initiation of subcutaneous heparin ...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000046263
更新日期:2001-07-01 00:00:00
abstract:BACKGROUND:The value of chronic kidney disease (CKD) screening in the general population remains unclear but may be beneficial in populations with high disease prevalence. We examined risk factors for albuminuria among participants in a state-wide CKD screening program in Hawaii. METHODS:The National Kidney Foundation...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000455389
更新日期:2017-01-01 00:00:00
abstract::Thirty-one renal transplant recipients, submitted to treatment with cyclosporin in association with other immunosuppressive agents, were also treated for 9 months with two hydroxymethylglutaryl coenzyme A reductase inhibitors, simvastatin (10 mg/day) or pravastatin (20 mg/day), for concomitant hypercholesterolemia and...
journal_title:American journal of nephrology
pub_type: 临床试验,杂志文章
doi:10.1159/000013487
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND/AIMS:Cystic epithelia in polycystic kidney disease display features similar to malignant cells. Thiazolidinediones have been shown to have anti-neoplastic properties, therefore we tested the hypothesis that pioglitazone reduces cyst formation, improves renal function, and prolongs survival in a mouse model o...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000242432
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Serum creatinine (SCr) levels are decreased following traumatic amputation, leading to the overestimation of glomerular filtration rate (GFR). β-Trace protein (BTP) and β2-microglobulin (B2M) strongly correlate with measured GFR and have not been studied following amputation. We hypothesized that BTP and B2M...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000443775
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Tacrolimus is mainly metabolized by cytochrome P450 3A5 (CYP3A5), which is expressed in the liver. However, CYP3A5 is also expressed in the kidney tissue and may contribute to local tacrolimus clearance in the kidney allograft. We aimed to evaluate the association between the allograft CYP3A5 genotype and tr...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000487857
更新日期:2018-01-01 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:Fatigue is an important symptom to patients with advanced chronic kidney disease (CKD). The aim of this study is to examine the prevalence and severity of fatigue among non-dialysis-dependent CKD and end-stage renal disease (ESRD) patients, to examine the association of fatigue with subjective and objective ...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000356939
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND/AIMS:Although HIV-infected persons are at higher risk for acute kidney injury (AKI) during hospitalization compared with their uninfected counterparts, risk factors for AKI are not well-defined. We aimed to describe the evolving incidence of AKI among HIV-infected individuals and to identify important AKI ri...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000337151
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND/AIMS:HFE protein controls iron absorption and cycling, and HFE mutations influence iron status. The aim was to evaluate the effect of the HFE genotype on the need for iron and erythropoietin in Italian hemodialysis patients. METHODS:Ninety-six prevalent patients were evaluated at the time of enrolment and p...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000111387
更新日期:2008-01-01 00:00:00
abstract::The number of patients with end-stage renal disease undergoing kidney transplantation - both cadaveric and living-donor - continues to rise. With long-term graft survival relatively fixed, this trend means that increasing numbers of patients are returning to dialysis after graft loss. Most will never be retransplanted...
journal_title:American journal of nephrology
pub_type: 杂志文章,评审
doi:10.1159/000342626
更新日期:2012-01-01 00:00:00
abstract::A comparative clinicopathological study was retrospectively performed in 61 children and 51 adults with IgA nephropathy. Hematuria and/or proteinuria as a chance finding was the most common initial clinical sign, being observed in 82.0% of the children and in 52.9% of the adults. At renal biopsy, hypertension and seve...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000168080
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND/AIMS:Pseudotumors of the craniovertebral junction (PTCVJ) are observed in long-term hemodialysis (HD) patients. There are neither criteria for diagnosis nor guidelines for screening. We attempted to determine magnetic resonance imaging (MRI) findings that could be used to detect PTCVJ, to determine the preva...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000013516
更新日期:1999-01-01 00:00:00
abstract::The purpose of the present investigation was to determine whether dexamethasone, an agent known to preserve the blood-brain barrier, and colchicine, an agent that impairs mobilization of macrophages, can prevent demyelinating lesions associated with rapid correction of hyponatremia in the experimental animal. Hyponatr...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000168071
更新日期:1990-01-01 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::The relationship between abnormalities in nocturnal penile tumescence (NPT) and autonomic function, measured by the Valsalva maneuver, was evaluated in 25 uremic patients and 22 normal subjects. NPT in uremic patients (45 +/- 6.8 min/night) was lower (p less than 0.01) than in normals (85 +/- 10.4 min/night). Valsalva...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000166629
更新日期:1982-01-01 00:00:00
abstract:BACKGROUND:The objective of this study was to investigate the role of bone morphogenetic protein (BMP) signal transduction in the pathogenesis of calciphylaxis. METHODS:Skin biopsy specimens were obtained from 18 patients with, and 12 patients without, calciphylaxis. Tissue sections were stained with antibodies direct...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000484418
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Apolipoprotein A1 (APOL1) gene variants occurring in people of West African descent contribute to the greater burden of kidney disease among African Americans. These variants are associated with increased risk of nondiabetic nephropathy, more rapid progression of chronic kidney disease, and shorter survival ...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000502675
更新日期:2019-01-01 00:00:00
abstract::This report reviews the features of 149 cases of renal allograft rupture, while adding a detailed description of 3 more cases to the English literature. From November, 1973 to November, 1979, 3 cases of renal allograft rupture occurred in 100 renal transplants performed at Research Medical Center, Kansas City, Mo., an...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000166577
更新日期:1982-01-01 00:00:00
abstract::We carried out a prospective 2-year study on the transmission of human immunodeficiency virus (HIV) infection in a chronic dialysis unit with a high prevalence (11%) of the infection. Only 1 of 45 HIV-negative patients seroconverted, and this was related to the administration of contaminated blood. We conclude that cu...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000167570
更新日期:1988-01-01 00:00:00
abstract:BACKGROUND:Malnutrition-inflammation score (MIS) is a comprehensive and quantitative system to assess malnutrition-inflammation complex syndrome, and a strong correlation between MIS and morbidity/mortality in maintenance hemodialysis (MHD) patients had been demonstrated. However, there is no cut-off value of MIS to ca...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000137684
更新日期:2008-01-01 00:00:00