Abstract：
:Low-density lipoprotein was derived from carbamyl (carbamyl-LDL) by incubating LDL in potassium cyanate (KCNO). The proportion of free amino groups in the carbamyl-LDL was negatively correlated (r = -0.95) with the time of incubation in potassium cyanate (ranged from 5 to 360 min). The carbamylation did not change the chemical composition or the flotation characteristics of the LDL particles. However, the electrophoretic mobility of carbamyl-LDL was distinctly increased with the extent of carbamylation. The carbamyl-LDL had substantially decreased binding to the LDL apoB/E receptors of the bovine adrenocortical membranes when compared to the control-LDL. The reduced binding was already observed when only 9% of the free amino groups were derived from carbamyl. A minor carbamylation of LDL (less than 20% of the free amino groups) decreased the in vivo clearance of LDL from rabbit plasma. However, when more than 20% of the free amino groups were derived the carbamyl-LDL had accelerated clearance compared to the control-LDL. LDL isolated from uremic patients was cleared in rabbits at a slower rate than LDL isolated from a control subject. Providing that carbamylation of LDL could also occur in vivo resulting in similar alterations of the LDL binding to the LDL B/E receptors, as observed in the present study, the uremia-related accelerated atherosclerosis could have one additional mechanistic explanation.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Hörkkö S,Savolainen MJ,Kervinen K,Kesäniemi YAdoi
10.1038/ki.1992.179subject
Has Abstractpub_date
1992-05-01 00:00:00pages
1175-81issue
5eissn
0085-2538issn
1523-1755pii
S0085-2538(15)57608-4journal_volume
41pub_type
杂志文章abstract：:The purpose of this study was to explore risk factors affecting the incidence of chronic kidney disease (CKD) in general population. We conducted a 10-year follow-up study with 123 764 (male: 41 012, female: 82 752) adults aged 40 years and over who received community-based annual examinations. The primary outcome for...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/sj.ki.5002017
更新日期：2007-01-01 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：:Freeze-fracture and thin-section electron microscopy and morphometry were used to characterize further the response of the rat medullary collecting duct to potassium depletion. In freeze-fracture replicas, principal cells and intercalated cells were identified based on the assumption that intercalated cells possess a ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1980.6
更新日期：1980-01-01 00:00:00
abstract：BACKGROUND:Primary collapsing glomerulopathy recurs postransplant, raising the possibility of circulating factors implicated in the pathogenesis of the disease. METHODS:To determine the presence of circulating factors in collapsing glomerulopathy patients, we tested serum from those patients in an in vivo assay. Eleve...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2004.00715.x
更新日期：2004-07-01 00:00:00
abstract：BACKGROUND:Approximately 8% of autosomal-dominant polycystic kidney disease (ADPKD) patients have intracranial aneurysms. The risk of growth and rupture of those discovered by presymptomatic screening is key to the feasibility and success of a screening program. This study was initiated to ascertain this risk. METHODS...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2004.00572.x
更新日期：2004-05-01 00:00:00
abstract：BACKGROUND:Patients with thin basement membrane disease (TBMD) are often from families where hematuria segregates with the COL4A3 and COL4A4 genes. These genes also are affected in autosomal recessive Alport syndrome. The aim of this study was to demonstrate COL4A4 mutations in TBMD. METHODS:Forty-eight unrelated indi...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2003.00780.x
更新日期：2003-02-01 00:00:00
abstract：:The presence of CR1 mRNA in podocytes was investigated using a 35S-labeled CR1 cDNA probe and in situ hybridization in sections from fetal and adult human kidneys. CR1 mRNA was only detected in immature podocytes at early stages of glomerular differentiation in the fetal kidney. In contrast, CR1 antigen was abundantly...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1990.198
更新日期：1990-08-01 00:00:00
abstract：:Early graft loss (EGL) is a feared outcome of kidney transplantation. Consequently, kidneys with an anticipated risk of EGL are declined for transplantation. In the most favorable scenario, with optimal use of available donor kidneys, the donor pool size is balanced by the risk of EGL, with a tradeoff dictated by the ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2020.01.043
更新日期：2020-06-01 00:00:00
abstract：:Tumor necrosis factor-like weak inducer of apoptosis (TWEAK) and its receptor, fibroblast growth factor-inducible 14 (TWEAK-Fn14), are widely expressed and are involved in both injury and repair. Hotta et al. now demonstrate an important role for Fn14 in the common clamp ischemia model of acute kidney injury. Their da...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1038/ki.2010.435
更新日期：2011-01-01 00:00:00
abstract：:Utilizing [5-15N] and [2-15N]-labeled glutamine and gas chromatography mass spectrometry methodology, we examined the pathways of ammoniagenesis under basal and acute acidotic conditions of pH 7.0 and pH 6.8, respectively. LLC-PK1 cultures were incubated for one hour with gentle rocking in a bicarbonate buffer of pH 7...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1994.137
更新日期：1994-04-01 00:00:00
abstract：:Vascular calcification is prevalent in dialysis patients and is associated with a high burden of cardiovascular disease. Fetuin-A is a potent inhibitor of vascular calcification, but the precise mechanism by which it mediates vascular calcification in uremia is unclear. Matsui and colleagues demonstrate that circulati...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1038/ki.2009.52
更新日期：2009-05-01 00:00:00
abstract：BACKGROUND:Low birth weight is an important risk factor for hypertension and unfavorable prognoses of a number of renal diseases. It is also associated with reduced kidney size and nephron number. A differentiation between the effects of low birth weight versus being born premature or small for gestational age has, how...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2005.00451.x
更新日期：2005-08-01 00:00:00
abstract：:We studied the specific binding of radiolabeled bradykinin ([3H]BK) and vasopressin ([3H]AVP) to membrane preparations of bovine and porcine kidney medulla. [3H]BK reversibly labeled a single site (Kd = 1.06 nM) in bovine kidney medulla independently of [Mg2+]. The number of BK receptors in bovine kidney medulla, Bmax...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1996.353
更新日期：1996-08-01 00:00:00
abstract：:In this mini review, we would like to challenge the well-established 'fact' that lead exposure causes chronic renal failure (CRF). Even though only scarce evidence exists of the relationship between lead and renal failure, a World Health Organization Environmental Health Criteria document summarizes that 'Lead has bee...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1038/ki.2010.394
更新日期：2011-02-01 00:00:00
abstract：BACKGROUND:A nationwide survey of urolithiasis in Japan was made in order to evaluate the chronological trend of upper urinary tract stones in the Japanese. It succeeded previous studies done in 1955, 1966, 1979, and 1990. METHODS:All outpatient visits to urologists that resulted in a diagnosis of first-episode upper ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1999.00754.x
更新日期：1999-11-01 00:00:00
abstract：:Hypercalciuria is one of the early manifestations of diabetic nephropathy. We explored here the role of α-Klotho, a protein expressed predominantly in distal convoluted tubules that has a role in calcium reabsorption. We studied 31 patients with early diabetic nephropathy and compared them with 31 patients with IgA ne...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2011.423
更新日期：2012-03-01 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：:Proteinuric diabetic patients have an increased risk of cardiovascular disease and almost always have hypertension. In the early stages of diabetic renal disease (microalbuminuria) when renal function is well preserved, systemic arterial blood pressure is already elevated compared to insulin-dependent diabetic patient...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1038/ki.1994.56
更新日期：1994-02-01 00:00:00
abstract：:Kidney transplant patients receiving phenytoin or phenobarbital may have decreased graft survival. These drugs have been shown to enhance the metabolism of glucocorticoids. We determined the disposition of total and unbound prednisolone in six stable kidney transplant patients receiving prednisone for immunosuppressio...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1984.17
更新日期：1984-01-01 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：:Severe segmental glomerulonephritis (Seg GN) (greater than or equal to 50% involvement) in systemic lupus erythematosus (SLE) is classified as diffuse GN (DPGN) in the WHO classification. We tested the validity of the assumption that severe Seg GN and DPGN have the same prognosis by determining the proportion of glome...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1987.203
更新日期：1987-08-01 00:00:00
abstract：BACKGROUND:Bioimpedance, a noninvasive technique to analyze body composition, has attracted interest in determining body hydration in hemodialysis patients. However, the so-called whole-body (wrist-to-ankle) bioimpedance analysis (WBIA) is sensitive to changes in regional fluid distribution and tends to underestimate f...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1999.00588.x
更新日期：1999-08-01 00:00:00
abstract：:Healthy male rats were exposed to a chronic ingesta of an isotonic NaCl solution during a period of four months. Two different preparations were utilized to study the effect of this treatment on the active mechanisms of Na+ reabsorption of kidney proximal tubular cells: outermost kidney cortex slices (rich in proximal...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1986.216
更新日期：1986-10-01 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 role of peritoneal dialysis (PD) in renal replacement therapy (RRT) remains unclear. There are no controlled trials to provide hard evidence of its efficacy. Comparative studies with haemodialysis from different centres and countries have given conflicting results even when allowing for case mix. Data from the Uni...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1046/j.1523-1755.1998.00183.x
更新日期：1998-12-01 00:00:00
abstract：:The application of our evolving knowledge of adhesion receptors to experimental models of immune complex glomerulonephritis has led to substantial advances in our understanding of how leukocytes emigrate from the vasculature into glomeruli and produce glomerular dysfunction. With respect to neutrophil (PMN) migration ...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1038/ki.1997.201
更新日期：1997-05-01 00:00:00
abstract：:Fixed anionic sites within the glomerular capillary wall influence the permeation of serum proteins, the localization of various antigens, and the deposition of antibody in the subepithelial space. In anti-GBM nephritis antibody deposition occurs very rapidly to antigenic sites located relatively proximal in the glome...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1984.188
更新日期：1984-10-01 00:00:00
abstract：:While hemodialysis therapy in its present form is capable of sustaining life, dialysis patients are not metabolically normal and we are unable to say what technical factors contribute adequate therapy. Recent efforts to resolve these problems have led to the assumption that substances in the molecular weight range of ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1976.126
更新日期：1976-11-01 00:00:00
abstract：:To investigate mechanisms underlying GFR control in diabetes mellitus, renal hemodynamics and segmental tubular handling of sodium, using lithium clearance, were assessed in 41 insulin-dependent diabetics (IDD) treated by insulin for 11 +/- 8 days, and in 19 normal controls. Average GFR and effective renal plasma flow...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1990.95
更新日期：1990-04-01 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
