Abstract：
:To date direct evidence for the presence of a H-K-ATPase in the medulla comes from proton and potassium transport studies performed on K-restricted animals and K dependent ATP hydrolysis and Rb uptake in both normal and K-depleted animals. The present work examines K-dependent acidification in the medulla of rabbits on normal K diets. A membrane vesicle preparation was developed that was enriched for apical membranes derived from the renal medulla. Adenosine triphosphate (ATP)-dependent vesicular acidification was present and the extent of vesicular acidification was dependent on ambient K concentration. Moreover, ATP hydrolysis was dependent on ambient K concentration. K-dependent acidification was inhibited by the specific inhibitor of the gastric H-K-ATPase, SCH28080. However, significant acidification was observed in the absence of K that was not inhibited by SCH28080. The data suggest that an H-K-ATPase similar to the gastric H-K-ATPase is present in the renal medulla of rabbits on a normal K diet. The component of acidification and ATP hydrolysis that is independent of K concentration likely represents the previously characterized vacuolar H-ATPase.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Curran KA,Hebert MJ,Cain BD,Wingo CSdoi
10.1038/ki.1992.392subject
Has Abstractpub_date
1992-11-01 00:00:00pages
1093-8issue
5eissn
0085-2538issn
1523-1755pii
S0085-2538(15)57821-6journal_volume
42pub_type
杂志文章abstract：BACKGROUND:The objectives of this study were to compare the effects of the angiotensin II receptor blocker, losartan, to those of the angiotensin-converting enzyme inhibitor, enalapril, on albuminuria and renal function in relationship to clinic and ambulatory blood pressure (ABP) in hypertensive type 2 diabetic subjec...
journal_title：Kidney international
pub_type： 临床试验,杂志文章
doi：10.1046/j.1523-1755.2000.00224.x
更新日期：2000-08-01 00:00:00
abstract：:Macrophages are inflammatory cells with important roles in the propagation of renal injury. More recently they have also been shown to be important in the resolution of inflammation. Wang et al. show that macrophages can be modulated ex vivo by cytokine stimulation, localize to renal tissue, and slow progression of ex...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1038/sj.ki.5002332
更新日期：2007-08-01 00:00:00
abstract：:Heme oxygenase (HO) is the rate-limiting enzyme in the degradation of heme, converting heme to biliverdin, during which iron is released and carbon monoxide (CO) is emitted; biliverdin is subsequently converted to bilirubin by biliverdin reductase. At least two isozymes possess HO activity: HO-1 represents the isozyme...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1038/sj.ki.5001565
更新日期：2006-08-01 00:00:00
abstract：BACKGROUND:Rho proteins are small guanine 5'-triphosphate (GTP)-binding proteins felt to be important regulators of several aspects of cell function, including the organization of the actin cytoskeleton. The effects of Rho proteins on the regulation of renal tubular epithelial cell function are not known. METHODS:Sele...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2000.00372.x
更新日期：2000-11-01 00:00:00
abstract：:Valproate is an antiepileptic drug known to induce hyperammonemia in humans. This hyperammonemia might result from a reduced detoxification of ammonium in the liver and/or from an accelerated renal ammoniagenesis. Six dogs with normal acid-base equilibrium and eight dogs with chronic metabolic acidosis were infused wi...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1988.229
更新日期：1988-11-01 00:00:00
abstract：:Tubular function studies have shown that nephrectomy leads to a sharp increase in potassium secretion by initial collecting tubules. The aim of this study was to examine the relationship between potassium transport and the cellular morphology of the distal nephron. Clearance and ultrastructural studies were conducted ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1985.58
更新日期：1985-04-01 00:00:00
abstract：:Fibrillary glomerulonephritis (FGN) is a rare glomerular disease. Kidney biopsy is required to establish the diagnosis. Recent studies have identified abundant glomerular deposition of DNAJB9 as a unique histological marker of FGN. We developed an immunoprecipitation-based multiple reaction monitoring method to measur...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2019.01.024
更新日期：2019-05-01 00:00:00
abstract：:To determine whether the induction of immune-mediated glomerular injury influences the formation of cyclooxygenase products by glomerular cells, we determined prostaglandin E2 (PGE2) and thromboxane B2 (TXB2) (as the stable metabolite of TXA2) formation in isolated glomeruli of rats with passive Heymann nephritis (PHN...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1987.118
更新日期：1987-05-01 00:00:00
abstract：:This study examined the utility of interleukin-10 (IL-10), a cytokine with potent anti-macrophage and anti-Th1 activity, in the treatment of experimental anti-glomerular basement membrane (GBM) nephritis in the rat. Accelerated anti-GBM disease was induced in Sprague-Dawley rats by immunization with rabbit IgG, follow...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1997.248
更新日期：1997-06-01 00:00:00
abstract：BACKGROUND:Hyperhomocysteinemia is a risk factor for atherosclerosis that is common in chronic renal failure (CRF), but its cause is unknown. Homocysteine metabolism is linked to betaine-homocysteine methyl transferase (BHMT), a zinc metalloenzyme that converts glycine betaine (GB) to N,N dimethylglycine (DMG). DMG is ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2001.00743.x
更新日期：2001-06-01 00:00:00
abstract：:Crim1 is a cell-surface, transmembrane protein that binds to a variety of cystine knot-containing growth factors, including vascular endothelial growth factor A. In the developing renal glomerulus, Crim1 acts to tether vascular endothelial growth factor A to the podocyte cell surface, thus regulating its release to gl...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2009.345
更新日期：2009-12-01 00:00:00
abstract：:Our genetic hypercalciuric (GH) rats have been selected and inbred for 29 generations to maximize urine calcium (UCa) excretion compared to identical gender controls (Ctl). To determine the effect of the increased UCa on urinary supersaturation and stone formation, we pair fed 15 GH and 15 Ctl rats a standard 1.2% cal...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1995.468
更新日期：1995-12-01 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：:Measures related to red cell oxygen transport were evaluated in 17 hemodialysis patients receiving androgen therapy, 15 untreated hemodialysis patients and 15 normal subjects. Hemoglobin levels were higher in androgen-treated patients than in the untreated population and were directly related to the reticulocyte index...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1987.15
更新日期：1987-01-01 00:00:00
abstract：BACKGROUND:Transforming growth factor-beta (TGF-beta) is known to play an important role in the pathophysiology of renal tubular disease. Researchers have recently identified a novel mitogen-activated protein kinase kinase kinase (MAPKKK), TAK (TGF-beta activated kinase)1, which stimulates the MKK3/6-p38K pathway. The ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1999.00665.x
更新日期：1999-10-01 00:00:00
abstract：:Incompatible donor/recipient pairs with broadly sensitized recipients have difficulty finding a crossmatch-compatible match, despite a large kidney paired donation pool. One approach to this problem is to combine kidney paired donation with lower-risk crossmatch-incompatible transplantation with intravenous immunoglob...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2013.206
更新日期：2013-11-01 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：:Effect of varying concentrations (0 to 800 microM) of three different light chains on sodium-dependent L-(14C)alanine and D-(14C)glucose uptake by rat renal brush border membrane vesicles were studied. One kappa and two lambda type light chains (lambda-1 and lambda-2) were isolated from urines of patients with multipl...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1986.237
更新日期：1986-11-01 00:00:00
abstract：BACKGROUND:We have recently demonstrated an increase in apoptosis in Han:SPRD rat kidneys with autosomal-dominant polycystic kidney disease (ADPKD). Caspase-3 and caspase-7 are major mediators of apoptosis. There are two pathways of caspase-3 and caspase-7-mediated apoptosis: (1) the "extrinsic" pathway involving the d...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2005.00155.x
更新日期：2005-03-01 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：:Micropuncture studies were carried out in surface nephrons of rats with nephrotoxic-serum (NTS)-induced nephrotic syndrome during a period of active sodium and water retention. It was found that hydrostatic pressure and tubular diameter were increased in the proximal tubules (13.4 +/- 0.2 vs. 10.4 +/- 0.2 mm Hg; 31.3 ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1979.166
更新日期：1979-11-01 00:00:00
abstract：:The interaction of 15-hydroxyeicosatetraenoic acid (15-HETE) and cultured MDCK renal tubular epithelial cells was investigated to determine whether incorporation of this lipoxygenase product will affect polyphosphoinositide formation. MDCK cells were incubated with 1 microM [3H]-15-HETE for 15 to 120 minutes. Maximum ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1994.131
更新日期：1994-04-01 00:00:00
abstract：:Diabetic nephropathy shows a higher incidence in male subjects, which may in part be owing to genetic factors. The angiotensin II type 2 receptor (AT2), present in the renal glomerulus, may oppose the deleterious effects of the type I receptor (AT1) through vasodilatation and growth inhibition. We determined whether t...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/sj.ki.5000348
更新日期：2006-05-01 00:00:00
abstract：:Nephropathia epidemica (NE) caused by Puumala hantavirus is one type of hemorrhagic fever with renal syndrome (HFRS). There is considerable variability in the clinical severity of NE. Many infections are subclinical but the disease can even be fatal. We questioned whether the wide spectrum in the outcome of NE is depe...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1996.29
更新日期：1996-01-01 00:00:00
abstract：:Clinical trials and experimental studies have highlighted the importance of epigenetic processes in the development of diabetic complications. One of the earliest features of diabetic nephropathy is renal enlargement. The epidermal growth factor (EGF) has a pivotal role in the development of diabetic nephromegaly and ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2011.39
更新日期：2011-06-01 00:00:00
abstract：BACKGROUND:Podocytes play an important role in the development of proteinuria and focal glomerulosclerosis. Previously we have demonstrated that a combination of two monoclonal antibodies (mAb) against aminopeptidase A (APA), an enzyme present on podocytes, induces a massive acute albuminuria in mice. The present study...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2002.00428.x
更新日期：2002-07-01 00:00:00
abstract：:The involvement of cysteinyl leukotrienes (LT) in the etiology of glomerulonephritis (GN) was investigated in a rat model of nephrotoxic serum nephritis in which renal function, morphology, LTC4 synthase activity and urinary cysteinyl LT excretion were monitored over seven days. Significant alterations in renal functi...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1994.401
更新日期：1994-11-01 00:00:00
abstract：BACKGROUND:Podocyte loss contributes to the development of glomerulosclerosis. Although podocytes have been detected in the urine in certain glomerular diseases, the viability of detached cells is not known. METHODS:Urine was collected from rats with experimental membranous nephropathy [passive Heymann nephritis (PHN)...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2003.00217.x
更新日期：2003-10-01 00:00:00
abstract：:The Executive Summary of the KDIGO Clinical Practice Guideline for the Care of Kidney Transplant Recipients is presented in this issue of Kidney International. This guideline will require careful attention for implementation in the context of available resources within each country, especially those with underdevelope...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1038/ki.2009.468
更新日期：2010-02-01 00:00:00
abstract：BACKGROUND:Pre-eclampsia is characterized by hypertension, proteinuria and edema. Simultaneous studies of kidney function and structure have not been reported. We wished to explore the degree and nature of glomerular dysfunction in pre-eclampsia. METHODS:Physiologic techniques were used to estimate glomerular filtrati...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1998.00097.x
更新日期：1998-10-01 00:00:00
