Abstract:
:IgA1 proteins from sera of patients with IgA nephropathy (IgAN) are galactosylated to a lesser degree than those from healthy controls. The increased reactivity of intact or de-sialylated serum IgA1 with N-acetylgalactosamine (GalNAc)-specific lectins, Helix aspersa (HAA) and Caragana arborescens (CAA) and de-sialylated IgA1 with Helix pomatia (HPA) and Bauhinia purpurea (BPA) indicated that the Gal deficiency is in glycans located in the hinge region of IgA1 molecules. De-sialylated IgA from sera of 81 IgAN patients bound biotin-labeled lectin HAA more effectively than did de-sialylated IgA from 56 healthy controls (P < 0.0001). Similar results were observed for 67 IgAN patients and 52 controls with second lectin, CAA (P < 0.001). The binding patterns for 9 patients with mesangial proliferative glomerulonephritis of non-IgA origin were similar to those for controls. Incompletely galactosylated IgA1 capable of binding GalNAc-specific lectins was detected in complexes with IgG as demonstrated by ELISA, size-exclusion chromatography and sucrose gradient ultracentrifugation. The formation of IgA1-IgG complexes may affect the serum level of IgA1 by reducing the rate of its elimination and catabolic degradation by the liver.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Tomana M,Matousovic K,Julian BA,Radl J,Konecny K,Mestecky Jdoi
10.1038/ki.1997.361subject
Has Abstractpub_date
1997-08-01 00:00:00pages
509-16issue
2eissn
0085-2538issn
1523-1755pii
S0085-2538(15)60201-0journal_volume
52pub_type
杂志文章abstract:BACKGROUND:Diabetic nephropathy is commonly associated with renal salt and water retention and hypertension. The molecular mechanisms involved and how the kidney responds to this volume expansion, in terms of renal transporter regulation, are not understood. METHODS:Targeted proteomics employing semiquantitative immun...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2002.00353.x
更新日期:2002-06-01 00:00:00
abstract:BACKGROUND:High-dose folinic acid is used to accelerate methotrexate elimination to avoid renal toxicity of the drug. The present study was carried out to examine the role of the renal organic anion transporters OAT-K1 and OAT-K2 in the urinary excretion of methotrexate, especially in the methotrexate-folinic acid resc...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2001.0600031058.x
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND:Low dialysate calcium (LdCa) concentration is used to prevent or treat hemodialysis (HD)-induced hypercalcemia, but its use has been complicated by intradialytic hypotension in some patients. Our goal was to explore the possibility that dialysis calcium profiling (dCaP) can ameliorate intradialytic hypotensi...
journal_title:Kidney international
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1523-1755.2002.00100.x
更新日期:2002-01-01 00:00:00
abstract::The molecular mechanism of Na+ and phosphate transport by the intestinal brush border membrane Na+/phosphate cotransporter was examined using anion and cation exchange columns interfaced to a light-activated microsecond timer. The nature of ion:cotransporter interaction was examined for sensitivity to itself versus no...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1996.141
更新日期:1996-04-01 00:00:00
abstract::The acutely injured mammalian kidney mounts a cellular and molecular response to repair itself. However, in patchy regions such intrinsic processes are impaired and dysregulated leading to chronic kidney disease. Currently, no therapy exists to treat established acute kidney injury per se. Strategies to augment human ...
journal_title:Kidney international
pub_type: 杂志文章,评审
doi:10.1016/j.kint.2017.07.030
更新日期:2018-01-01 00:00:00
abstract::We studied in 32 patients on maintenance hemodialysis (duration of treatment 6 to 133 months) whether duration of dialysis treatment affects blood pressure, plasma noradrenaline levels and alpha 2-adrenoceptor density (assessed in platelet membranes by 3H-yohimbine binding). Plasma noradrenaline levels were a signific...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1987.267
更新日期:1987-11-01 00:00:00
abstract::Renal proximal tubule cells from spontaneously hypertensive rats (SHR), compared with normotensive Wistar-Kyoto rats (WKY), have increased oxidative stress. The contribution of mitochondrial oxidative phosphorylation to the subsequent hypertensive phenotype remains unclear. We found that renal proximal tubule cells fr...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2013.397
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND:In X-linked Alport syndrome, mutations in the COL4A5 gene encoding the alpha 5 chain of type IV collagen result in progressive renal failure. This nephropathy appears to relate to the arrest of a switch from an alpha 1/alpha 2 to an alpha 3/alpha 4/alpha 5 network of type IV collagen in the developing glomer...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.1998.00188.x
更新日期:1998-12-01 00:00:00
abstract::Extracellular fluid volume expansion is known to produce exaggerated natriuresis in essential hypertension. In order to assess the role of hemodynamic and intrarenal physical factors upon natriuretic response to central volume expansion, two hour water immersion (WI) experiments were made in six uncomplicated essentia...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1988.79
更新日期:1988-04-01 00:00:00
abstract::Antibody responses to antigens are impaired in humans and animals with chronic renal failure (CRF), and parathyroid hormone (PTH) inhibits Staphylococcus aureus Cowan I (SAC) or pokeweed mitogen (PWM)-induced antibody production by B cells from normal subjects. Since CRF is associated with secondary hyperparathyroidis...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1991.286
更新日期:1991-11-01 00:00:00
abstract::Previous studies from our laboratory have demonstrated that metabolic clearance rate (MCR) of calcitriol is decreased in experimental renal failure. In this experiment, we examined the effects of calcitriol, 25-hydroxyvitamin D3 (25(OH)D3) and 24,25-dihydroxyvitamin D3 (24,25(OH)2D3) on the MCR of calcitriol in renal ...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1989.185
更新日期:1989-08-01 00:00:00
abstract::The glomerular response to injury displays astonishingly uniform features that include infiltration with professional immune cells, activation and proliferation of resident glomerular cells and matrix expansion. Cross-communication of intrinsic mesangial cells with invading immune cells is crucial for the fate of glom...
journal_title:Kidney international
pub_type: 杂志文章,评审
doi:10.1046/j.1523-1755.2002.00225.x
更新日期:2002-03-01 00:00:00
abstract:BACKGROUND:Cux-1 is a murine homeobox gene that is highly expressed in the nephrogenic zone of the developing kidney. Transgenic mice ectopically expressing Cux-1 develop renal hyperplasia associated with down-regulation of the cyclin kinase inhibitor p27. Because the reduction of p27 has been associated with mesangial...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2003.00889.x
更新日期:2003-04-01 00:00:00
abstract::Acute kidney injury (AKI) is a major complication of cardiac bypass surgery. We examined whether levels of liver fatty acid-binding protein (L-FABP) can be an early biomarker for ischemic injury by measuring this protein in the urine of 40 pediatric patients prior to and following cardiopulmonary bypass surgery. AKI w...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/sj.ki.5002721
更新日期:2008-02-01 00:00:00
abstract::A number of clinical laboratory and biopsy-derived parameters were assessed for their prognostic significance in the short (24 months), intermediate (60 months) and long terms in 45 patients (43 female, 2 male) with diffuse proliferative lupus glomerulonephritis (DPGN). The factors evaluated were serum creatinine (SCr...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1988.211
更新日期:1988-10-01 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::Sustained oliguria during fluid resuscitation represents a perplexing problem in patients undergoing therapy for septic acute kidney injury. Here, we tested whether lipopolysaccharide induces filtrate leakage from the proximal tubular lumen into the interstitium, thus disturbing the recovery of urine output during the...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1016/j.kint.2019.11.024
更新日期:2020-05-01 00:00:00
abstract:BACKGROUND:Angiotensin II (Ang II) can up-regulate nicotinamide adenine dinucleotide phosphate [NAD(P)H] oxidase, whose product superoxide anion (O2-) can interact with nitric oxide (NO) to form peroxynitrite (ONOO-). We tested the hypothesis that Ang II subtype 1 (AT1) receptor activation enhances oxidative stress and...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2002.00123.x
更新日期:2002-01-01 00:00:00
abstract::Monocyte and macrophage markers are among the most highly overexpressed genes in cpk mouse kidneys with severely progressive renal cystic disease. We show here that one of these markers, CD14, is abnormally transcribed, activated and shed in cystic kidneys. However, these abnormalities were not associated with an incr...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2010.175
更新日期:2010-09-01 00:00:00
abstract::Recent studies of timing of dialysis initiation have challenged the recent trend to earlier initiation of therapy. The observed outcomes though are a consequence of the balance between the risks of advanced uremia versus the inherent dangers relating to dialysis therapy itself. Many of these risks are inherent in how ...
journal_title:Kidney international
pub_type: 杂志文章,评审
doi:10.1038/ki.2012.133
更新日期:2012-08-01 00:00:00
abstract::Since 1992 and the discovery of an MIP (major intrinsic protein of lens fiber cell) homologue protein that selectively permeates water, aquaporin (AQP), there has been an explosion of research in this field. Early research speculated that aquaporins played indispensible physiological roles in bacteria and plants, as w...
journal_title:Kidney international
pub_type: 杂志文章,评审
doi:10.1046/j.1523-1755.1998.00123.x
更新日期:1998-10-01 00:00:00
abstract::A model of glomerular dynamics has been developed by using network thermodynamics and the SPICE 2 computer program to further explore the determinants of glomerular filtration. The model is designed to be holistic and self-adjusting, taking cognizance of and permitting quantitation of the secondary alterations in indi...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1981.27
更新日期:1981-02-01 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::Besides its procoagulant activity, thrombin has been shown to stimulate cell proliferation and to regulate the fibrinolytic pathway. We report here the effect of purified human alpha thrombin on the synthesis of tissue-type plasminogen activator (t-PA) and plasminogen activator inhibitor 1 (PAI-1) by cultured human me...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1990.297
更新日期:1990-11-01 00:00:00
abstract::Lithium therapy frequently induces nephrogenic diabetes insipidus; amiloride appears to prevent its occurrence in some clinical cases. Amiloride blocks the epithelial sodium channel (ENaC) located in the apical membrane of principal cells; hence one possibility is that ENaC is the main entry site for lithium and the b...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2009.91
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Familial nephrotic syndrome (NS) has both autosomal dominant and recessive forms of inheritance. Recent studies in families with an autosomal dominant form of focal segmental glomerulosclerosis (FSGS) have been at odds concerning linkage to chromosome 19q13 (Mathis et al, Kidney Int 53:282-286, 1998; Winn et...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2000.057003875.x
更新日期:2000-03-01 00:00:00
abstract::An expression profile is a list based on a large scale sequencing of 1000 cDNA clones, showing the expressed genes and the abundance of their transcripts in a given cell or tissue (Okubo K et al: Nature Genet 2:173, 1992). We constructed an expression profile of mouse renal proximal tubules (PT) carefully isolated by ...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.1998.00808.x
更新日期:1998-03-01 00:00:00
abstract::The improvement in the anemia in patients with end-stage renal disease (ESRD) on continuous ambulatory peritoneal dialysis (CAPD) suggests that dialyzable substances present in the sera of uremic patients either inhibit erythropoiesis directly or inactivate erythropoietin (EPO). In the present study predialysis sera f...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1991.88
更新日期:1991-04-01 00:00:00
abstract::Chronic kidney disease is characterized as impaired renal function along with the imbalance and dysregulation of mineral metabolism; recognized as chronic kidney disease-mineral and bone disorder. Hyperphosphatemia, characterized by altered phosphate homeostasis along with elevated fibroblast growth factor-23 and inta...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1016/j.kint.2020.02.040
更新日期:2020-08-01 00:00:00
abstract::A newly described glomerulotubular feedback loop may explain the relationship between glomerular damage, epitope spreading, tubulointerstitial nephritis, proteinuria as a progression factor, and the importance of the local milieu in kidney damage. It also opens the horizons for exciting innovative approaches to therap...
journal_title:Kidney international
pub_type: 杂志文章,评审
doi:10.1038/ki.2009.489
更新日期:2010-03-01 00:00:00