Abstract:
BACKGROUND:Interleukin-6 (IL-6) exerts its actions through a cell-surface receptor system that consists of two transmembrane subunits: the IL-6 binding glycoprotein gp 80 (IL-6R) and the signal-transducing component (gp 130). Soluble forms of the IL-6R (sIL-6R) are generated by shedding of the membrane-associated proteins. The sIL-6R binds the ligand IL-6 with comparable affinity as the membrane-associated IL-6R and enhances the actions of IL-6. METHODS:Our aim was to evaluate the role of both uremia and different dialysis membranes on peripheral blood mononuclear cell (PBMC) release (either in absence or in presence of mitogen stimulation) and plasma levels of sIL-6R. Ten patients chronically dialyzed with cuprophan membranes (CU), eight patients on regular dialysis treatment with polymethylmethacrylate (PMMA) membranes, 11 uremic nondialyzed patients (UR), and 12 healthy subjects (CON) were included in the study. RESULTS:PBMCs harvested from CU spontaneously released significantly (P < 0.01) greater amounts of sIL-6R (881.8 +/- 80.1 pg/mL), as compared with CON (267.5 +/- 26.5 pg/mL), UR (258.4 +/- 38.1 pg/mL), and PMMA (288.4 +/- 24.6 pg/mL). Under mitogenic stimulation, the sIL-6R release was significantly (P < 0.01) increased in all groups. The greater PBMC production of sIL-6R in CU was followed by significantly (P < 0.01) higher levels of circulating soluble receptors (48.7 +/- 2.5 ng/mL, 60%), as compared with CON (30.5 +/- 1.9 ng/mL). UR also showed high circulating levels of sIL-6R (53.3 +/- 5.9 ng/mL), probably secondary to an impaired urinary excretion. Circulating levels of sIL-6R in PMMA were comparable to CON (30.3 +/- 3.3 ng/mL). Either the absence of monocyte activation or the adsorption of sIL-6R on the hydrophobic PMMA surface could explain this finding. CONCLUSIONS:These results suggest an important role for poor dialysis biocompatibility of CU on the release of sIL-6R, which increases sIL-6R plasma levels, thereby enhancing the inflammatory effects of IL-6.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Memoli B,Postiglione L,Cianciaruso B,Bisesti V,Cimmaruta C,Marzano L,Minutolo R,Cuomo V,Guida B,Andreucci M,Rossi Gdoi
10.1046/j.1523-1755.2000.00181.xsubject
Has Abstractpub_date
2000-07-01 00:00:00pages
417-24issue
1eissn
0085-2538issn
1523-1755pii
S0085-2538(15)47114-5journal_volume
58pub_type
杂志文章abstract:BACKGROUND:Since the cloning of the gene for autosomal dominant polycystic kidney disease type 2 (PKD2), approximately 40 different mutations of that gene have been reported to be associated with the disease. The relationship between the PKD2 genotype and phenotype, however, remains unclear. METHODS:Detailed clinical ...
journal_title:Kidney international
pub_type: 杂志文章,多中心研究
doi:10.1046/j.1523-1755.2000.00989.x
更新日期:2000-04-01 00:00:00
abstract::Monocyte chemoattractant protein 1 (MCP-1) is a C-C chemokine with potent monocyte chemotactic and activating properties that may contribute to glomerular macrophage infiltration in anti-GBM Ab GN. We have previously reported increased glomerular steady state expression of MCP-1 mRNA relative to GAPDH mRNA in the hete...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1996.363
更新日期:1996-08-01 00:00:00
abstract::Chronic kidney disease (CKD) remains one of the leading causes of death in the developed world, and acute kidney injury (AKI) is now recognized as a major risk factor in its development. Understanding the factors leading to CKD after acute injury are limited by current animal models of AKI, which concurrently target v...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2012.20
更新日期:2012-07-01 00:00:00
abstract::The relative importance of sarcopenia and its individual components as independent predictors of mortality in the dialysis population has not been determined. We estimated whole-body muscle mass using pre-dialysis bioimpedance spectroscopy measurements in 645 ACTIVE/ADIPOSE-enrolled prevalent hemodialysis patients fro...
journal_title:Kidney international
pub_type: 杂志文章,多中心研究
doi:10.1016/j.kint.2017.01.024
更新日期:2017-07-01 00:00:00
abstract::One reason for the inadequacy of current renoprotective therapy and the persistent poor renal prognosis in diabetic nephropathy is the large interindividual variation in response to treatment. Genetic as well as non-genetic factors are known to influence treatment efficacy. This Commentary summarizes the impact of the...
journal_title:Kidney international
pub_type: 评论,杂志文章
doi:10.1038/sj.ki.5000283
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND:Edaravone (3-methyl-1-phenyl-2-pyrazolin-5-one) is a potent scavenger of free radicals and has the antioxidant ability to inhibit lipid peroxidation. Its protective effect on brain ischemia has been shown. This study aimed to elucidate its possible therapeutic effects on renal oxidative stress in a rat ische...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1111/j.1523-1755.2004.00567.x
更新日期:2004-05-01 00:00:00
abstract::Neutrophil gelatinase-associated lipocalin (Ngal, 24p3, SIP24, lipocalin 2, or siderocalin) was originally purified from neutrophils, but with unknown function. Recently, it was identified that Ngal activates nephron formation in the embryonic kidney, is rapidly and massively induced in renal failure and possesses kid...
journal_title:Kidney international
pub_type: 杂志文章,评审
doi:10.1038/sj.ki.5002165
更新日期:2007-05-01 00:00:00
abstract::E-64d, a membrane-permeable cysteine protease inhibitor, was tested for its ability to inhibit PTH-induced contraction in intact mouse MC-3T3-E1 osteoblastic cells. Incubation of MC-3T3-E1 cells with vehicle (DMSO) or E-64c, a nonpermeant cysteine protease inhibitor, in the presence or in the absence of PTH had no eff...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1993.99
更新日期:1993-03-01 00:00:00
abstract::The aging process in humans and in the rat is associated with an impairment in renal tubular reabsorption of Pi and renal tubular adaptation to a low Pi diet. The purposes of the present study were to determine whether changes in the abundance of type II Na-Pi contransporter (NaPi-2) protein and/or mRNA play a role in...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1996.385
更新日期:1996-09-01 00:00:00
abstract::Adenosine is known to be a potent inhibitor of renin release from the kidneys. The aim of this study was to investigate the transmembrane signalling avenue that the second messenger of adenosine causes inhibition of renal renin release. Using short term cultures of juxtaglomerular cells isolated from rat kidneys, we f...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1988.70
更新日期:1988-04-01 00:00:00
abstract::Podocytes are highly differentiated cells that play an important role in maintaining glomerular filtration barrier integrity; a function regulated by small GTPase proteins of the Rho family. To investigate the role of Rho A in podocyte biology, we created transgenic mice expressing doxycycline-inducible constitutively...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2011.472
更新日期:2012-06-01 00:00:00
abstract::Albuminuria and a reduced glomerular filtration rate are conventional predictors of a future decline in kidney function in patients with type 2 diabetes mellitus. Using a nested case-control study we assessed whether circulating transforming growth factor-β1 (TGF-β1) and bone morphogenetic protein-7 (BMP-7) levels mor...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2012.383
更新日期:2013-02-01 00:00:00
abstract::Urinary exosomes containing apical membrane and intracellular fluid are normally secreted into the urine from all nephron segments, and may carry protein markers of renal dysfunction and structural injury. We studied methods for collection, storage, and preservation of urinary exosomal proteins. We collected urine fro...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/sj.ki.5000273
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND:Population-genetic studies investigating genetic polymorphisms of Mendelian inheritance should always test whether the measured genotype frequencies deviate from the expected one. For this purpose Hardy-Weinberg (HW) criteria are generally used. If genotype distribution of control population misses HW equili...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1111/j.1523-1755.2004.00596.x
更新日期:2004-05-01 00:00:00
abstract:BACKGROUND:The relationship between low hematocrit and contrast-induced nephropathy has not been investigated. METHODS:Of 6,773 consecutive patients treated with percutaneous coronary intervention, contrast-induced nephropathy (an increase of >/=25% or >/=0.5 mg/dL in preprocedure serum creatinine, at 48 hours postpro...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1111/j.1523-1755.2005.67131.x
更新日期:2005-02-01 00:00:00
abstract::Fourteen Center hemodialysis (CHD) patients, 13 continuous ambulatory peritoneal dialysis (CAPD) patients, and 10 normals matched by group for age and sex were compared using a battery of evoked (EP) and event-related (ERP) brain potential measures to determine the effects on central nervous system (CNS) functioning o...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1986.279
更新日期:1986-12-01 00:00:00
abstract:BACKGROUND:Home nocturnal hemodialysis is an intensive form of hemodialysis, where patients perform their treatments at home for about 7 hours approximately 6 nights a week. Compared with in-center conventional hemodialysis, home nocturnal hemodialysis has been shown to improve physiologic parameters and reduce health ...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2003.00157.x
更新日期:2003-09-01 00:00:00
abstract::In male Wistar rats, renal adenosine triphosphate (ATP), inorganic phosphate (Pi) and intracellular pH were measured by 31phosphorus nuclear magnetic resonance (31P NMR) and correlated with renal function before, during, and for one hour after a period of 30 to 40 minutes hemorrhagic hypotension. In animals which suff...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1986.192
更新日期:1986-09-01 00:00:00
abstract::Leukocytes play a major role in the development and progression of autoimmune diseases. We measured gene expression differences in leukocytes from patients that were antineutrophil cytoplasmic autoantibody (ANCA) positive, patients with systemic lupus erythematosus (SLE) or rheumatoid arthritis (RA), and healthy donor...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/sj.ki.5002371
更新日期:2007-10-01 00:00:00
abstract::Polycystin-1 (PC1) and -2 (PC2), products of the PKD1 and PKD2 genes, are mutated in autosomal dominant polycystic kidney disease (ADPKD). They localize to the primary cilia; however, their ciliary function is in dispute. Loss of either the primary cilia or PC1 or PC2 causes cyst formation. However, loss of both cilia...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1016/j.kint.2020.05.049
更新日期:2020-11-01 00:00:00
abstract::We studied binding and degradation of vasoactive intestinal peptide (VIP) by highly purified brush border and basolateral membranes from rabbit kidney cortex. Brush border and basolateral membranes were capable of 73 and 49% degradation of VIP after 20 minutes, and the degradation was totally prevented by bacitracin. ...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1991.32
更新日期:1991-02-01 00:00:00
abstract::The renal 11beta-hydroxysteroid dehydrogenase type 2 (11betaHSD2) enzyme inactivates 11-hydroxy steroids in the kidney, thus protecting the nonselective mineralocorticoid receptor (MR) from occupation by glucocorticoids. The gene is highly expressed in all sodium-transporting epithelia, but also in human placenta, pan...
journal_title:Kidney international
pub_type: 杂志文章,评审
doi:10.1046/j.1523-1755.2000.00978.x
更新日期:2000-04-01 00:00:00
abstract::Congenital chloride diarrhea is due to mutations in the intestinal Cl(-)/HCO(3)(-) exchange (SLC26A3) which results in sodium chloride and fluid depletion leading to hypochloremic and hypokalemic metabolic alkalosis. Although treatment with sodium and potassium chloride offers protection from renal involvement in chil...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2008.401
更新日期:2008-10-01 00:00:00
abstract::Prostaglandin E2 (PGE2) may be an important negative feedback modulator of endothelin-1 (ET-1)-stimulated mesangial cell proliferation and contraction. Recent studies suggest that ET-1 may induce prolonged mesangial cell PGE2 production, however the mechanism of this effect is unknown. The current study was undertaken...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1995.6
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:There is accumulating evidence that adult bone marrow (BM) cells show unexpected plasticity, and can differentiate into a wide range of specialized cells. In the case of intrinsic renal glomerular cells, BM-derived cells have been reported to differentiate into both mesangial cells and podocytes. However, th...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1111/j.1523-1755.2005.00291.x
更新日期:2005-05-01 00:00:00
abstract::Factor H is a regulator of the alternative pathway of complement, and genetic studies have shown that patients with mutations in factor H are at increased risk for several types of renal disease. Pathogenic activation of the alternative pathway in acquired diseases, such as ischemic acute kidney injury, suggests that ...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2011.115
更新日期:2011-07-01 00:00:00
abstract::Cystinosis as a clinical entity is a progressive dysfunction of multiple organs caused by the accumulation of cystine in the tissues, leading, for example, to end-stage renal failure, diabetes, hypothyroidism, myopathy, and central nervous system deterioration. Brodin-Sartorius and colleagues present a long-term study...
journal_title:Kidney international
pub_type: 评论,杂志文章
doi:10.1038/ki.2011.301
更新日期:2012-01-01 00:00:00
abstract::Hyperlipidemia can induce or aggravate renal tubulointerstitial injury. Experiments in a complex rat model with chronic glomerulonephritis and long-standing, coexisting hyperlipidemia suggested that induction of xanthine oxidase (XO), with increased oxygen radical generation, is involved in aggravation of tubulointers...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/sj.ki.5000121
更新日期:2006-02-01 00:00:00
abstract:BACKGROUND:Systematic studies on safety and efficacy of enteral nutrition in patients with acute renal failure (ARF) are lacking. METHODS:We studied enteral nutrition-related complications and adequacy of nutrient administration during 2525 days of artificial nutrition in 247 consecutive patients fed exclusively by th...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1111/j.1523-1755.2004.00459.x
更新日期:2004-03-01 00:00:00
abstract::This study was undertaken to test the hypothesis that, given equal arterial pressure reductions, the combination of an angiotensin converting enzyme (ACE) inhibitor and calcium antagonist slows declines in renal function and yields greater reductions in albuminuria over either agent alone. This hypothesis was evaluate...
journal_title:Kidney international
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1038/ki.1992.139
更新日期:1992-04-01 00:00:00