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 tubulointerstitial injury. To separate the role of XO in the initial events of lipid-mediated tubulointerstitial injury, short-term experiments with diet-induced hyperlipidemia over 21 and 35 days were performed in otherwise healthy rats. XO expression in relation to the antioxidant enzymes was examined in the cortical tubulointerstitium (TIS) and proximal tubules (PT). Subsequent experiments with XO inhibition were performed, examining tubulointerstitial infiltration with ED1-positive cells and expression of adhesion molecules and monocyte chemoattractant protein-1 (MCP-1) as indicators of early injurious events. Hyperlipidemia increased XO activity in TIS by 40 and 86%, and in PT by 28 and 90% at days 21 and 35, compared with controls on regular diet. This increased activity was associated with increased reactive oxygen species. Among the antioxidant enzymes, glutathione peroxidase activity increased in TIS by 40% and in PT by 90%. Histological evaluation showed a three-fold increase in ED1-positive cells and increased MCP-1 and vascular cell adhesion molecule-1 (VCAM-1) expression at day 35 in the TIS. Inhibition of XO prevented tubulointerstitial ED1 cell infiltration, together with a decreased expression of MCP-1 and VCAM-1. These results point to an important role for XO in the early stage of hyperlipidemia-associated renal injury, mediating macrophage infiltration by a putatively redox-dependent upregulation of MCP-1 and VCAM-1.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Gwinner W,Scheuer H,Haller H,Brandes RP,Groene HJdoi
10.1038/sj.ki.5000121subject
Has Abstractpub_date
2006-02-01 00:00:00pages
481-7issue
3eissn
0085-2538issn
1523-1755pii
S0085-2538(15)51513-5journal_volume
69pub_type
杂志文章abstract：:An effective therapeutic means to remove relatively large polypeptide uremic toxins seems to be a hemofiltration (HF) or hemodiafiltration (HDF) employing a larger-pore membrane, that is, a protein-permeable membrane. With either method, however, a significant amount of albumin will be lost into the ultrafiltrate or d...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1996.333
更新日期：1996-08-01 00:00:00
abstract：:From August 1987 through February 1995 we performed 42 surgical procedures in 29 patients with occluded or stenotic radiocephalic arteriovenous fistulae. Operations were designed to preserve native veins for cannulation (Group I) or to preserve access in the same forearm, bypassing the failed fistula (Group II). For 2...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1998.00769.x
更新日期：1998-02-01 00:00:00
abstract：:The transition between the glomerulus and the proximal tubule was studied by light and electron microscopy in perfusion-fixed rabbit kidneys. In most nephrons a transitional segment of tubule occurred between the Bowman's capsule and the proximal tubule proper. This initial part of the tubule was lined by flattened ce...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1975.22
更新日期：1975-03-01 00:00:00
abstract：:Medial arterial calcification involves chondrogenic/osteogenic transdifferentiation of vascular smooth muscle cells (VSMCs). Zhao et al. report that phosphate activates the mammalian target of rapamycin (mTOR) cascade in VSMCs, leading to downregulation of Klotho. Furthermore, rapamycin was shown to halt medial calcif...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1038/ki.2015.223
更新日期：2015-10-01 00:00:00
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：:Meprins are zinc-dependent metalloproteinases that are highly expressed in the brush-border membranes of both the kidney and the intestines. Meprins are capable of proteolytically degrading extracellular matrix proteins, proteolytically processing bioactive proteins, and play a role in inflammatory processes. In this ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/sj.ki.5002189
更新日期：2007-05-01 00:00:00
abstract：:The role of calcitonin on the calcemic response to parathyroid hormone (PTH) in renal failure has not been evaluated previously. Often animal studies evaluating the calcemic response to PTH in renal failure are performed in thyroparathyroidectomized (TPTX) animals, and thus eliminate any potential physiologic effect o...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1991.203
更新日期：1991-08-01 00:00:00
abstract：:In seven patients on maintenance hemodialysis, de novo recurrent renal stone formation was observed. In all patients, the underlying disease was glomerulonephritis, with or without the nephrotic syndrome. All patients had considerable persistent proteinuria. The stones consisted predominantly of protein, as revealed b...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1979.188
更新日期：1979-12-01 00:00:00
abstract：:Urinary peptidomics focuses on endogenous urinary peptide content. Many studies now show the usefulness of this approach for the discovery and validation of biomarkers in kidney diseases that are as varied as chronic kidney disease, acute kidney injury, congenital anomalies of the kidney and the urinary tract, and pol...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1016/j.kint.2015.10.010
更新日期：2016-03-01 00:00:00
abstract：:To determine whether Cyclosporine A (CsA) alters the intrarenal expression of the renin and type 1 angiotensin II receptor genes, male adult Sprague-Dawley rats were given 25 mg/kg/day CsA s.c. for three weeks (CsA, N = 20) and were compared to pair-fed vehicle treated rats (Con, N = 20). The intrarenal distribution o...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1993.90
更新日期：1993-03-01 00:00:00
abstract：:Reducing proteinuria and blood pressure in chronic kidney disease (CKD) decreases rate of progression. Inhibition of the renin-angiotensin system by angiotensin-converting enzyme inhibitors and/or angiotensin receptor blockers is beneficial in reducing proteinuria but incomplete in suppressing aldosterone production a...
journal_title：Kidney international
pub_type： 评论,杂志文章,评审
doi：10.1038/sj.ki.5002007
更新日期：2006-12-01 00:00:00
abstract：:The loss of interstitial capillaries is a feature of several experimental models of renal disease and this contributes to secondary kidney injury. Angiopoietin-1 is a secreted growth factor which binds to Tie-2 present on endothelia to enhance cell survival thereby stabilizing capillary architecture in-vitro. Previous...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2008.179
更新日期：2008-08-01 00:00:00
abstract：:We evaluated short- and long-term effects of high-dose recombinant human erythropoietin (rHuEPO) in kidney transplantation in a prospective double-blind, placebo-controlled study. Patients with chronic kidney disease following receipt of a deceased donor kidney allograft were randomized to 3 doses of 40,000 units rHuE...
journal_title：Kidney international
pub_type： 杂志文章,随机对照试验
doi：10.1038/ki.2011.349
更新日期：2012-02-01 00:00:00
abstract：:The purpose of these studies was to quantitatively assess the role of endogenous angiotensin II activity in controlling transport in the proximal convoluted tubule (PCT) and whole nephron. We used the nonpeptide angiotensin II receptor antagonist DuP 753, which lacks the agonist and kinin/prostaglandin-inducing proper...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1990.228
更新日期：1990-09-01 00:00:00
abstract：:The hypoxia-inducible factor-1 (HIF-1) was first described as a DNA binding activity that specifically recognizes an 8 bp hypoxia response element (HRE) known to be essential for oxygen-regulated erythropoietin gene expression. In electrophoretic mobility shift assays (EMSAs) HIF-1 DNA binding activity is only detecta...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1997.80
更新日期：1997-02-01 00:00:00
abstract：:The neonatal proximal tubule has a lower rate of bicarbonate absorption than that of adults. This is due, in part, to a lower rate of apical membrane Na+/H+ antiporter activity. The purpose of these studies was to examine if thyroid hormone could be a factor in the maturational increase in Na+/H+ antiporter activity. ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1998.00879.x
更新日期：1998-05-01 00:00:00
abstract：:Spontaneous and aspirated blood samples were collected from the welling points of surface efferent arterioles in the rat kidney. The amount of tubular reabsorbate in each sample was calculated from measurements of the inulin concentration in the sample and systemic arterial plasma. Both spontaneous and aspirated sampl...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1984.44
更新日期：1984-03-01 00:00:00
abstract：BACKGROUND:C-peptide has been reported to have biological effects on renal function early in the course of diabetes. This investigation was initiated to elucidate and amplify these findings with respect to protein leakage, hyperfiltration and renal functional reserve in diabetic rats. METHODS:Acute effects of 140 minu...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1998.00074.x
更新日期：1998-09-01 00:00:00
abstract：:The International Pediatric Peritonitis Registry (IPPR) was created to assess and evaluate the validity of the pediatric peritonitis treatment guidelines issued by the International Society for Peritoneal Dialysis. The study by Schaefer et al., one of the first to emerge from the IPPR, describes regional variability i...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1038/sj.ki.5002529
更新日期：2007-12-01 00:00:00
abstract：BACKGROUND:The development of strategies to enhance the survival of transplanted organs and to potentially lower or even discontinue immunosuppressive therapy would represent a significant advancement in post-transplant patient care. METHODS:We studied the effect of pretransplant infusion of donor leukocytes alone or ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1999.00631.x
更新日期：1999-09-01 00:00:00
abstract：:Membranous nephropathy is a major cause of nephrotic syndrome in adults where podocyte injuries were found to mediate the development of proteinuria. Triptolide, a major active component of Tripterygium wilfordii Hook F, has potent immunosuppressive, anti-inflammatory and antiproteinuric effects. To study its antiprot...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2010.41
更新日期：2010-06-01 00:00:00
abstract：:The possibility that the rabbit collecting tubule is heterogeneous with respect to electrical and morphologic properties was examined in isolated segments. Collecting tubules from rabbits treated with desoxycorticosterone acetate were dissected from various locations within the cortex and outer medulla, and the transe...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1978.167
更新日期：1978-12-01 00:00:00
abstract：BACKGROUND:While the progression of renal disease to end stage is strongly correlated with tubulointerstitial changes, the control of the fibrotic process within the interstitium is poorly understood. Basic fibroblast growth factor (FGF-2) has been implicated as a major growth factor involved in fibroblast activation a...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2001.00723.x
更新日期：2001-06-01 00:00:00
abstract：BACKGROUND:Disorders that manifest hypokalemic metabolic alkalosis, such as Bartter's syndrome and Gitelman's syndrome, are caused by the malfunction of renal tubular electrolyte transporters. Bartter's syndrome may be linked to dysfunction of Na-K-2Cl cotransporter (NKCC2), renal outer medullary K channel (ROMK), or C...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2003.00163.x
更新日期：2003-09-01 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：:Previously, uremic toxins were sometimes regarded as a large, mysterious, but also anonymous group of factors potentially contributing to morbidity and mortality in end-stage renal disease. By identifying the protein-bound solute p-cresol as a risk factor for mortality in dialysis patients, Bammens and colleagues for ...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1038/sj.ki.5000236
更新日期：2006-03-01 00:00:00
abstract：:Human transitional B cells express relatively high IL-10 and low TNF-α levels, which correlate with B regulatory activity in vitro. Herein, we aim to further define B regulatory phenotype and determine whether B regulatory activity can serve as a prognostic marker for renal allograft dysfunction (graft loss or 2-fold ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2016.08.028
更新日期：2017-01-01 00:00:00
abstract：:We analyzed clinical and pathologic data from 36 recipients of 38 renal allografts who developed nephrotic syndrome following transplantation. Three groups were identified on the basis of histologic changes in the graft, and each group had a distinct clinical course. Nine grafts (23.7%) had recurrent glomerulonephriti...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1980.146
更新日期：1980-09-01 00:00:00
abstract：:Platelet-derived growth factor (PDGF)-D, a specific PDGF receptor β (PDGFR-β) ligand, mediates mesangial proliferation in vitro and in vivo. However, its role in renal development, physiology, and fibrosis is relatively unknown. In healthy murine kidneys, PDGF-D was found to be expressed on renal mesenchymal cells (me...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2015.12.037
更新日期：2016-04-01 00:00:00
abstract：BACKGROUND:Although apoptosis has been linked to the renal cell deletion and ensuing renal fibrosis, its regulating mechanisms remain obscure. Of the known regulators of apoptosis, the best characterized is the Bax to Bcl-2 ratio. However, its importance in controlling apoptosis in glomerulonephritis is unclear. Here, ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2002.kid587.x
更新日期：2002-10-01 00:00:00
