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 injury could be attenuated by the antioxidant EPC-K1. METHODS:We divided male Wistar rats into the following three groups: (1) a renal I/R group, (2) an EPC-K1 + renal I/R group and (3) a control group. Rats were sacrificed 24 h after treatment (I/R or sham). To measure oxidative stress in renal tissue, histological examinations were performed and serum levels of blood urea nitrogen (BUN) and creatinine were measured. The antioxidant action of EPC-K1 was also evaluated in RAW264.7 cells stimulated with antimycin A. RESULTS:Serum BUN and creatinine levels were elevated in the I/R group; however, this increase was significantly attenuated by EPC-K1 in the EPC-K1 + I/R group. Renal tissue injury was also significantly lower in the EPC-K1 + I/R group compared with the I/R group. In vitro experiments showed that EPC-K1 significantly attenuated the generation of ROS induced by antimycin A. CONCLUSION:In our study, EPC-K1 was able to attenuate AKI due to renal I/R by reducing oxidative stress. These results suggest that EPC-K1 may be effective against various types of I/R injury.
journal_name
Am J Nephroljournal_title
American journal of nephrologyauthors
Yamamoto S,Hagiwara S,Hidaka S,Shingu C,Goto K,Kashima K,Noguchi Tdoi
10.1159/000327820subject
Has Abstractpub_date
2011-01-01 00:00:00pages
485-90issue
6eissn
0250-8095issn
1421-9670pii
000327820journal_volume
33pub_type
杂志文章abstract:BACKGROUND/AIMS:Cisplatin (CIS) induces nephrotoxicity partly through renal vasoconstriction and decreased glomerular filtration effects thought to involve adenosine acting on adenosine A(1) receptors (A1Rs). We studied the effect of the orally active, A1R antagonist tonapofylline (BG9928) on biochemical measures of re...
journal_title:American journal of nephrology
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doi:10.1159/000248762
更新日期:2009-01-01 00:00:00
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journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000013391
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journal_title:American journal of nephrology
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更新日期:2014-01-01 00:00:00
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journal_title:American journal of nephrology
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更新日期:2012-01-01 00:00:00
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journal_title:American journal of nephrology
pub_type: 杂志文章
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journal_title:American journal of nephrology
pub_type: 杂志文章,评审
doi:10.1159/000168637
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journal_title:American journal of nephrology
pub_type: 临床试验,杂志文章
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更新日期:1999-01-01 00:00:00
abstract::Serum levels of vitamin A (VA) were measured in 71 hemodialysis (HD) patients and in 30 normal controls. 65 of the 71 patients were taking multivitamin preparations (MP) containing VA. The HD patients had significantly greater values: 7.81 +/- 2.86 mumol/l (224 +/- 82 micrograms/dl) versus 3.97 +/- 0.97 mumol/l (114 +...
journal_title:American journal of nephrology
pub_type: 杂志文章
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journal_title:American journal of nephrology
pub_type: 杂志文章
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更新日期:1998-01-01 00:00:00
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journal_title:American journal of nephrology
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更新日期:1982-01-01 00:00:00
abstract::Nutrition has been shown to predict clinical outcome in continuous ambulatory peritoneal dialysis (CAPD) patients. However, despite the positive relationship between KT/V (urea) and the normalised protein catabolic rate, the ability of urea kinetic modelling to predict clinical outcome or nutrition remains inconclusiv...
journal_title:American journal of nephrology
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更新日期:1993-01-01 00:00:00
abstract:BACKGROUND:Conditionally immortalized podocytes are valuable research tools but are difficult to efficiently transfect and do not provide graded transgene expression. METHODS:Conditionally immortalized mouse podocyte cell lines were established employing a tetracycline-inducible system. Glomerular cells, isolated from...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000151770
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:A poor nutritional state is associated with an increased risk of cardiovascular events in end-stage renal disease. It is unclear whether malnutrition itself can induce cardiovascular disease (CVD). We examined the impact of nutritional status on patients' arterial stiffness in peritoneal dialysis (PD) patien...
journal_title:American journal of nephrology
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doi:10.1159/000206697
更新日期:2009-01-01 00:00:00
abstract::A 22-year-old woman presented glomerulonephritis with Schönlein-Henoch-like syndrome and monoclonal abnormality. One month later, she developed a rapidly progressive glomerulonephritis with hypertension and persistent purpura. In the two renal biopsies performed during the first and the second attack, mesangial expans...
journal_title:American journal of nephrology
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更新日期:1991-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1159/000443775
更新日期:2015-01-01 00:00:00
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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:Serum phosphorus levels have been associated with adverse long-term outcome in several populations, however, no prior studies evaluated short-term postoperative outcome. The present study evaluated the predictive value of phosphorus levels on 30-day outcome after vascular surgery. METHODS:The study inc...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000315856
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Most studies evaluating predictors of renal replacement therapy (RRT) following cardiac surgery use arbitrary defined limits of preoperative serum creatinine. The aim of this study was to evaluate the effect of preoperative renal function using either estimated-glomerular filtration rate (eGFR) derived using...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000492182
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Serum protein profiling patterns can reflect the pathological state of a patient and therefore may be useful for clinical diagnostics. Here, we present results from a pilot study of proteomic expression patterns in hemodialysis patients designed to evaluate the range of serum proteomic alterations in this po...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000077409
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:Used in a variety of approved and off-label indications, there are several intravenous immunoglobulin (IVIG) preparations available which differ in the excipients (e.g. sucrose, glucose, maltose, D-sorbitol, glycine or L-proline) used to stabilize the protein in the solution. A very rare, but severe adverse ...
journal_title:American journal of nephrology
pub_type: 杂志文章,评审
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更新日期:2013-01-01 00:00:00
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journal_title:American journal of nephrology
pub_type: 杂志文章
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更新日期:2005-05-01 00:00:00
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journal_title:American journal of nephrology
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更新日期:2015-01-01 00:00:00
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journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000329081
更新日期:2011-01-01 00:00:00
abstract::Obese Zucker rats spontaneously develop lipoprotein abnormalities, proteinuria, mesangial expansion and glomerulosclerosis. Previous studies have implicated these lipoprotein abnormalities in the pathogenesis of the progressive renal injury which these rats develop. The present study was designed to examine the chrono...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000168588
更新日期:1993-01-01 00:00:00
abstract::Tuberculosis associated with dialysis was studied at the Artificial Kidney Unit (AKU) in Abha, Saudi Arabia. There were 13 tuberculosis patients out of 270 patients on maintenance hemodialysis from August 1986 to July 1993, a prevalence of 4.8%. Ten (77%) were female and 3 (23%) were male, mean age of 51.23 +/- 11.62 ...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000169068
更新日期:1997-01-01 00:00:00
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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::Investigations of biopsy material from human kidneys with different forms of glomerulonephritis (n = 1,240) and with diabetic glomerulosclerosis (n = 406) performed in order to find changes caused by hyperperfusion of the kidney tissue gave the following results: (1) Hyperperfusion injury occurs in the different forms...
journal_title:American journal of nephrology
pub_type: 杂志文章
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更新日期:1988-01-01 00:00:00
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journal_title:American journal of nephrology
pub_type: 临床试验,杂志文章
doi:10.1159/000108358
更新日期:2007-01-01 00:00:00
abstract::In hypoaldosteronemic patients with chronic renal insufficiency, administration of a mineralocorticoid steroid such as fludrocortisone can ameliorate hyperkalemia and metabolic acidosis, but this therapy is not always safe owing to the deleterious consequences of extracellular fluid volume expansion resulting from min...
journal_title:American journal of nephrology
pub_type: 杂志文章
doi:10.1159/000166827
更新日期:1984-01-01 00:00:00
abstract::Bicarbonate dialysate is claimed to be superior to acetate for both chronic and acute hemodialysis. We compared acetate and bicarbonate dialysates in 30 acute renal failure patients during 120 dialyses. 4 patients were diabetic and 2 had liver failure. Patients were dialyzed alternating acetate and bicarbonate dialysa...
journal_title:American journal of nephrology
pub_type: 临床试验,杂志文章
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更新日期:1981-01-01 00:00:00