Abstract:
:IgA nephropathy (IgAN) often shows lesions morphologically identical with those of focal segmental glomerulosclerosis (FSGS). In order to determine the possible role of FSGS in IgAN lesions, we measured glomerular capsular adhesions, often the first step toward FSGS, in biopsies from 127 patients with IgAN, 100 with lupus nephritis, and 26 with primary FSGS. Capsular adhesions with no lesions in the underlying tuft, consistent with podocyte abnormality or loss, were found regularly in FSGS and IgAN, but infrequently in lupus. Fifteen biopsies of patients with IgAN were studied immunohistochemically using markers for podocytes, Bowman's parietal epithelial cells, proliferating cells, and macrophages. Cytokeratins CK-8 and C2562 differentiated normal podocytes (negative) from parietal epithelial cells (variably positive). There was focal loss of the podocyte markers synaptopodin, glomerular epithelial protein 1 (GLEPP-1), nephrin, and vascular endothelial growth factor (VEGF), particularly at sites of capsular adhesions in otherwise histologically normal glomeruli. Cells displaying the parietal epithelial cell markers PAX2 (paired box gene 2) and the cytokeratins were also positive for the proliferating cell marker, proliferating cell nuclear antigen. These cells gathered at sites of adhesion, and in response to active lesions in the tuft, grew inward along the adhesion onto the tuft, forming a monolayer positive for parietal markers and the podocyte marker Wilms tumor protein-1 (WT-1). These cells deposited a layer of collagen over the sclerosing tuft. Thus, all biopsies of patients with IgAN had changes basically identical to those classically described in FSGS. Hence, our study strongly suggests that podocytopathy of a type similar to that in primary FSGS occurs frequently in IgAN.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Hill GS,Karoui KE,Karras A,Mandet C,Van Huyen JD,Nochy D,Bruneval Pdoi
10.1038/ki.2010.466subject
Has Abstractpub_date
2011-03-01 00:00:00pages
635-642issue
6eissn
0085-2538issn
1523-1755pii
S0085-2538(15)54848-5journal_volume
79pub_type
杂志文章abstract::Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pneumonia emerged in Wuhan, China in December 2019. Unfortunately, there is a lack of evidence about the optimal management of novel coronavirus disease 2019 (COVID-19), and even less is available in patients on maintenance hemodialysis therapy than in the g...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1016/j.kint.2020.04.031
更新日期:2020-07-01 00:00:00
abstract:BACKGROUND:Low dietary phosphorus (P) prevents parathyroid gland (PTG) hyperplasia and the development of secondary hyperparathyroidism (SH) in uremic rats. The present study explores the effects of P restriction on parathyroid hormone (PTH) synthesis and secretion and PT cell growth in rats with established SH and PTG...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2002.00265.x
更新日期:2002-04-01 00:00:00
abstract:BACKGROUND:The "intact" parathyroid hormone (PTH) assay recognizes PTH-(1-84) as well as amino terminally truncated PTH fragments, that is, large carboxyterminal PTH fragments (C-PTH fragments). The present study investigated whether the use of the plasma PTH-(1-84)/C-PTH fragment ratio enhances the noninvasive assessm...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2001.00949.x
更新日期:2001-10-01 00:00:00
abstract:BACKGROUND:1,25-Dihydroxyvitamin D3 [1,25(OH)2D3], the active form of vitamin D3, is a potent immunomodulatory agent on several cell types such as monocytes and mesangial cells. Recruitment of inflammatory cells, as well as stimulation of resident cells and mesangial matrix accumulation are key features of various expe...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2001.00775.x
更新日期:2001-07-01 00:00:00
abstract::Sodium depletion has a protective effect on target-organ damage in hypertension independent of blood pressure. Here we tested whether chronic dietary sodium restriction may prevent the development of renal alterations associated with insulin resistance by reducing the inflammatory and oxidant state. Rats were fed norm...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2012.478
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:Macrophages have been regarded as "blackguards" in the generation of glomerular injury. However, it is still unclear what kind of cellular machinery is responsible for their pathogenic actions. To explore this issue, this investigation aims at developing a novel strategy using adoptive transfer of "loss-of-f...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2000.00893.x
更新日期:2000-02-01 00:00:00
abstract:BACKGROUND:In a prior study the 21-aminosteroid (lazaroid) U74389F provided in vivo protection from oxidative stress when used as a preventive therapy in ischemia-reperfusion injury in the kidney. As the cell membrane is the principal site for lipoperoxidation, in the current study the very lipophilic 2-methylaminochro...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.1998.00072.x
更新日期:1998-09-01 00:00:00
abstract::Renal dysfunction is a common and serious complication in multiple myeloma (MM) patients. Renal proximal tubule injury is characteristic in MM, and may result in disturbed renal handling of various vitamins. The abnormal excretion of vitamins in urine may result in their low serum levels. The goal of this study was to...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/sj.ki.5000024
更新日期:2006-01-01 00:00:00
abstract::Germ free rats provide a unique model in which to assess biological response to environment. In 48 germ-free male, Sprague-Dawley rats we examined the consequences of oral exposure to nordihydroguaiaretic acid (NDGA), a nephrotoxin; to Staphylococcus epidermidis and bacillus species, non-endotoxin-containing bacteria;...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1987.213
更新日期:1987-09-01 00:00:00
abstract::We used the perfused hemicorpus preparation to measure individual rates of protein synthesis and degradation. Using fed animals, perfused either with or without insulin, muscle protein synthesis and hemicorpus protein degradation rates were similar, but myofibrillar protein degradation was clearly increased in the ure...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1986.119
更新日期:1986-06-01 00:00:00
abstract::The following bone density measurements have limited utility in determining bone strength because they do not include bone quality: microarchitecture, mineralization, ability to repair damage, collagen structure, crystal size, or marrow composition. Patients with kidney disease have poor bone quality. Newman et al. no...
journal_title:Kidney international
pub_type: 评论,杂志文章
doi:10.1016/j.kint.2015.11.004
更新日期:2016-01-01 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:BACKGROUND:It is not known whether angiotensin-converting-enzyme (ACE) inhibitors slow the progression of polycystic kidney disease (PKD). We performed a patient-level meta-analysis to compare the effect of antihypertensive regimens, including ACE inhibitors, to those without ACE inhibitors (controls) on kidney disease...
journal_title:Kidney international
pub_type: 杂志文章,meta分析
doi:10.1111/j.1523-1755.2005.00077.x
更新日期:2005-01-01 00:00:00
abstract::Autosomal dominant polycystic kidney disease (ADPKD) is an inherited, progressive nephropathy accounting for 4-10% of end stage renal disease worldwide. PKD1 and PKD2 are the most common disease loci, but even accounting for other genetic causes, about 7% of families remain unresolved. Typically, these unsolved cases ...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1016/j.kint.2019.08.038
更新日期:2020-02-01 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::Efficacy and safety of antibiotic 'locks', in prevention of thrombotic and infectious complication-related morbidity and mortality, among diabetics dialyzed through tunneled-cuffed catheters (TCCs) has not been effectively investigated. This trial was designed to investigate the outcome of TCCs (n = 109), inserted amo...
journal_title:Kidney international
pub_type: 杂志文章,随机对照试验
doi:10.1038/sj.ki.5001776
更新日期:2006-11-01 00:00:00
abstract::We compared the effects of calcitriol and doxercalciferol, in combination with either calcium carbonate or sevelamer, on bone, mineral, and fibroblast growth factor-23 (FGF-23) metabolism in patients with secondary hyperparathyroidism. A total of 60 pediatric patients treated with peritoneal dialysis were randomized t...
journal_title:Kidney international
pub_type: 杂志文章,随机对照试验
doi:10.1038/ki.2010.352
更新日期:2011-01-01 00:00:00
abstract::The parathyroid hormone response to hypocalcemia was investigated in hemodialysis patients with osteomalacia and compared to those with osteitis fibrosa. Hypocalcemia was induced during hemodialysis by employing a dialysate devoid of calcium. Patients with osteomalacia had a blunted maximum amino terminal parathyroid ...
journal_title:Kidney international
pub_type: 临床试验,杂志文章
doi:10.1038/ki.1983.168
更新日期:1983-09-01 00:00:00
abstract::Polycystic kidney disease progresses more rapidly in men than in women. To investigate the basis for this sexual dimorphism, we exposed Madin-Darby canine kidney (MDCK) cells grown on collagen-coated cell culture inserts to control media, or to estradiol or testosterone (1 nM-1 microM). Compared to control and estradi...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1997.211
更新日期:1997-05-01 00:00:00
abstract:BACKGROUND:Several examinations have been performed to identify the genes involved in chronic renal failure using 5/6 nephrectomized rats. Recently, many systematic techniques for examining molecular expression have been developed. They might also be effective in elucidating the molecular mechanism of progressive renal...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1111/j.1523-1755.2004.00704.x
更新日期:2004-07-01 00:00:00
abstract::Most epidemiologic data, thus far, have focused on short-term outcomes of acute kidney injury (AKI). Lo et al. correlate AKI with long-term outcomes. The concept of 'uremic memory' sheds light on the importance of AKI and its permanent imprint. The focus of research should be on prevention of an episode of AKI, when p...
journal_title:Kidney international
pub_type: 评论,杂志文章
doi:10.1038/ki.2009.314
更新日期:2009-10-01 00:00:00
abstract::Exosomes are small membrane vesicles that are secreted from a variety of cell types into various body fluids including the blood and urine. These vesicles are thought to play a role in cell-cell interactions. CD24 is a small but extensively glycosylated protein linked to the cell surface by means of a glycosyl-phospha...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/sj.ki.5002486
更新日期:2007-11-01 00:00:00
abstract::The purpose of this investigation is to analyze changes in plasma 1,25-(OH)2D and 24,25-(OH)2D after successful renal transplantation in 20 children and young adults. Studies were performed on 8 subjects between the 1st and 10th month and on 12 others between the 20th and 30th to 36th month. Samples were assayed for p...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1981.153
更新日期:1981-09-01 00:00:00
abstract::Although the goal glomerular filtration rate (GFR) for chronic dialysis initiation is currently above 5 ml/min per 1.73 m(2), there is no convincing evidence that patients will benefit from this approach. With close follow-up of advanced chronic kidney disease patients, aiming to start dialysis at an estimated GFR (eG...
journal_title:Kidney international
pub_type: 评论,杂志文章
doi:10.1038/ki.2014.164
更新日期:2014-10-01 00:00:00
abstract::This very brief summary of the various possible contributions of PG to normal and abnormal renal function should highlight the problem of assigning a specific role to PG in overall renal physiology and pathophysiology. PG produced in specific segments of the nephron will affect specific functions occurring in this seg...
journal_title:Kidney international
pub_type: 杂志文章,评审
doi:10.1038/ki.1986.13
更新日期:1986-01-01 00:00:00
abstract::Genetic deletion of the adenosine A1 receptor (A1AR) increased renal injury following ischemia-reperfusion injury suggesting that receptor activation is protective in vivo. Here we tested this hypothesis by expressing the human-A(1)AR in A(1)AR knockout mice. Renal ischemia-reperfusion was induced in knockout mice 2 d...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2008.699
更新日期:2009-04-01 00:00:00
abstract:BACKGROUND:Gentamicin is commonly used in hemodialysis patients. Gentamicin pharmacokinetics during traditional hemodialysis have been described. Slow daily home (SDH) hemodialysis (7 to 9 hours a day/6 days a week) use is increasing due to benefits observed with increased hemodialysis. We determined gentamicin pharmac...
journal_title:Kidney international
pub_type: 临床试验,杂志文章
doi:10.1046/j.1523-1755.2003.00819.x
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND:Hemodialysis access thrombosis is a significant cause of morbidity for hemodialysis patients and results from decreased access flow caused by venous outflow tract stenosis. Ultrasound dilution (UD) is a practical, noninvasive, and reliable indicator of access flow and is effective in predicting venous stenos...
journal_title:Kidney international
pub_type: 临床试验,杂志文章
doi:10.1046/j.1523-1755.2001.00753.x
更新日期:2001-06-01 00:00:00
abstract::From September 9 to October 3, 1994, five patients on maintenance hemodialysis in a dialysis unit in Tokyo contracted hepatitis B virus (HBV) infection successively, and four of them died of fulminant hepatitis. The unit treated 181 patients three times a week on eight shifts, and all five afflicted patients were on t...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1995.499
更新日期:1995-12-01 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