Abstract：
:The effect of glycine on hypoxia- and ionomycin-induced increases in calpain activity in rat proximal tubules was determined. Calpain activity was determined both in vitro and in the intact cell using the fluorescent substrate N-succinyl-Leu-Leu-Val-Tyr-7-amido-4-methyl coumarin (N-succinyl-Leu-Leu-Val-Tyr-AMC) and Western blotting for calpain-specific spectrin breakdown products (BDP), respectively. At 7.5 minutes of hypoxia (prelethal injury model) there was a significant (10-fold) increase in in vitro calpain activity that was not inhibited by glycine. At 15 minutes of hypoxia (postlethal injury model) there was a further increase in calpain activity that was inhibited by glycine. Normoxic tubules incubated with the calcium ionophore ionomycin (5 microM) for two minutes and 10 minutes had a significant increase in calpain activity that was not inhibited by glycine. After 15 minutes of hypoxia in the presence of glycine, there was an increase in calpain-specific spectrin breakdown products (BDP) in both Triton X-100 soluble and cytosolic extracts from proximal tubules. Glycine in concentrations up to 10 mM had no direct effect on the in vitro calpain activity of purified calpains. The present study demonstrates that: (1) prelethal increases in calpain activity stimulated by hypoxia and ionomycin treatment are not affected by glycine; (2) calpain-mediated spectrin breakdown during hypoxia occurs in the presence of glycine; (3) glycine does prevent the additional postlethal increase in calpain activity probably by maintaining membrane integrity to calcium influx.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Edelstein CL,Ling H,Gengaro PE,Nemenoff RA,Bahr BA,Schrier RWdoi
10.1038/ki.1997.452subject
Has Abstractpub_date
1997-11-01 00:00:00pages
1271-8issue
5eissn
0085-2538issn
1523-1755pii
S0085-2538(15)60292-7journal_volume
52pub_type
杂志文章abstract：:Mutations in the complement regulatory proteins are associated with several different diseases. Although these mutations cause dysregulated alternative pathway activation throughout the body, the kidneys are the most common site of injury. The susceptibility of the kidney to alternative pathway-mediated injury may be ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2016.02.036
更新日期：2016-07-01 00:00:00
abstract：BACKGROUND:Lanthanum carbonate has been shown to be a safe, effective phosphate-binding agent. We have shown that an impaired mineralization in chronic renal failure rats treated with high doses of lanthanum carbonate develops secondary to phosphate depletion and is therefore pharmacologically mediated rather than a di...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2005.00281.x
更新日期：2005-05-01 00:00:00
abstract：:Acute kidney injury (AKI) severe enough to require dialysis is increasing and associated with high mortality, yet robust information about temporal epidemiology of AKI requiring dialysis in England is lacking. In this retrospective observational study of the Hospital Episode Statistics (HES) data set covering the enti...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2015.234
更新日期：2015-11-01 00:00:00
abstract：:We have previously suggested that albumin in tubule fluid at concentrations found in the nephrotic syndrome (NS) binds furosemide, thereby diminishing diuretic effect. This mechanism may contribute to diuretic resistance in NS. If this hypothesis is correct, displacement of albumin from furosemide should restore diure...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1991.228
更新日期：1991-09-01 00:00:00
abstract：:The transforming growth factor-beta (TGF-beta) plays a central role in the progression of renal fibrosis. TGF-beta transduces its signal through the activin receptor-like kinase (ALK)5. IN-1130, a novel small molecule ALK5 inhibitor, inhibited the purified kinase domain of ALK5-mediated Smad3 phosphorylation with an I...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/sj.ki.5001775
更新日期：2006-10-01 00:00:00
abstract：:Fibroblasts in parenchymal organs potentially contribute extracellular matrix to local fibrogenic processes. This contribution, in some circumstances, may be initiated by cytokines disseminated from inflammatory lesions. Different populations of fibroblasts, however, might respond distinctively to this cytokine bath d...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1992.3
更新日期：1992-01-01 00:00:00
abstract：BACKGROUND:Human mesothelial cells (HMCs) have an important role in maintaining an adequately functioning fibrinolytic system in the peritoneal cavity by secreting the fibrinolytic enzymes tissue-type and urokinase-type plasminogen activator (t-PA and u-PA), as well as a specific PA inhibitor, PA inhibitor type 1 (PAI-...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1999.00244.x
更新日期：1999-01-01 00:00:00
abstract：:We have recently presented evidence that endogenous nitric oxide (NO) and prostaglandins (PGs) modulate angiotensin II (Ang II) action in microperfused afferent arterioles (Af-Arts). Because flow may be a physiological stimulus of endothelial release of NO and PGs, we tested the hypothesis that flow through the lumen ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1996.55
更新日期：1996-02-01 00:00:00
abstract：:Hemodynamic factors may play a role in the development of acute renal failure following administration of contrast media (CM). In this study the effect of intravenous injection of contrast media and mannitol on red blood cell velocity (VRBC) and red blood cell aggregation in renal medullary vessels was studied in 58 r...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1996.181
更新日期：1996-05-01 00:00:00
abstract：BACKGROUND:The substitution of tryptophan for glycine at amino acid 460 (Gly460Trp polymorphism) of the alpha-subunit of the heterodimeric cytoskeleton protein adducin increases renal sodium reabsorption and may be involved in the pathophysiology of essential hypertension. In the present study, we investigated in multi...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2002.00691.x
更新日期：2002-12-01 00:00:00
abstract：BACKGROUND:Rats that recover from acute puromycin nephrosis later develop widespread glomerular and tubulointerstitial injury. The current study sought to identify structural changes present in the recovery phase that could precipitate progressive renal disease. METHODS:Stereologic studies were performed 10 weeks afte...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2002.00481.x
更新日期：2002-08-01 00:00:00
abstract：:Alport syndrome is experiencing a remarkable increase in preclinical investigations. To proactively address the needs of the Alport syndrome community, as well as offer clarity for future clinical research sponsors, the Alport Syndrome Foundation hosted a workshop to generate consensus recommendations for prospective ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2020.02.029
更新日期：2020-06-01 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：BACKGROUND:The characteristic feature of Goodpasture disease is the occurrence of an autoantibody response to the noncollagenous domain of the alpha3 chain of type IV collagen [alpha3(IV)NC1] in the alveolar and glomerular basement membrane. These antibodies are associated with the development of a rapidly progressive ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1999.055003936.x
更新日期：1999-03-01 00:00:00
abstract：:Organomercurial diuretics stimulate renin secretion although the underlying cellular mechanisms remain undefined. Since organomercurials are also known to react with sulfhydryl groups, the present studies determined the effects of sulfhydryl reagents on renin secretion. The effects of the non-diuretic mercurial agent,...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1989.57
更新日期：1989-03-01 00:00:00
abstract：BACKGROUND:Aldosterone has been known for many years to increase sodium (Na(+)) reabsorption by the distal nephron. The present in vitro experiments investigated the effect of the hormone on calcium (Ca(2+)) transport by the luminal membrane of the rabbit nephron, independent of any systemic influence. METHODS:Proxima...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2004.00725.x
更新日期：2004-07-01 00:00:00
abstract：BACKGROUND:There is growing evidence pointing to an involvement of cytokines and growth factors in renal osteodystrophy. In this study, the expression of interleukin-l beta (IL-1 beta), tumor necrosis factor-alpha (TNF-alpha), transforming growth factor-beta (TGF-beta), and basic fibroblast growth factor (bFGF) in bone...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2003.00835.x
更新日期：2003-03-01 00:00:00
abstract：:Adoptive immunotherapy in patients with advanced cancer produces significant regression of metastatic disease in selected patients, but it is complicated by severe side effects. Prevention of these complications is still limited because their precise mechanisms remain unknown. For this reason we have investigated rena...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1991.215
更新日期：1991-08-01 00:00:00
abstract：:Experimental studies have demonstrated the cardinal role played by the mononuclear phagocyte system in the removal of antigen-antibody complexes. To assess the functional capacity of phagocytes in patients with renal disease, 33 normal subjects, 10 patients with mesangial proliferative glomerulonephritis, 8 patients w...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1983.105
更新日期：1983-06-01 00:00:00
abstract：:Recent advances have led to a greater appreciation of how mitochondrial dysfunction contributes to diverse acute and chronic pathologies. Indeed, mitochondria have received increasing attention as a therapeutic target in a variety of diseases because they serve as key regulatory hubs uniquely situated at crossroads be...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1016/j.kint.2017.05.034
更新日期：2017-11-01 00:00:00
abstract：:Major features of a long-standing inflammation in the kidney are vascular proliferation, glomerulosclerosis, interstitial fibrosis and tubular atrophy, leading to a gradual deterioration of the renal function. In this study we have investigated the expression of B-type receptors for platelet-derived growth factor (PDG...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1989.306
更新日期：1989-12-01 00:00:00
abstract：:As the worldwide prevalence of end-stage renal disease increases it is important to evaluate the rate of living kidney donation in various countries; however there is no comprehensive global assessment of these rates. To measure this, we compiled data from representatives, renal registries, transplant networks, publis...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2009.20
更新日期：2009-05-01 00:00:00
abstract：:The presence of nitric oxide (NO) in the kidney has been implicated in the pathogenesis of human glomerulonephritis. However, the exact type of glomerular cells that express NO synthase (NOS) and the NOS isoform involved in the local production of NO has not been identified in the human diseased kidney. We examined th...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1998.00907.x
更新日期：1998-06-01 00:00:00
abstract：BACKGROUND:Edaravone (3-methyl-1-phenyl-2-pyrazolin-5-one) is a potent scavenger of free radicals and has the antioxidant ability to inhibit lipid peroxidation. Its protective effect on brain ischemia has been shown. This study aimed to elucidate its possible therapeutic effects on renal oxidative stress in a rat ische...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2004.00567.x
更新日期：2004-05-01 00:00:00
abstract：:Primary hyperoxaluria is characterized by severe urolithiasis, nephrocalcinosis, and early renal failure. As treatment options are scarce, we aimed for a new therapeutic tool using colonic degradation of endogenous oxalate by Oxalobactor formigenes. Oxalobacter was orally administered for 4 weeks as frozen paste (IxOC...
journal_title：Kidney international
pub_type： 临床试验,杂志文章
doi：10.1038/sj.ki.5001707
更新日期：2006-10-01 00:00:00
abstract：:The vascular endothelium normally is maintained in a quiescent state, but under certain conditions it is induced to undergo marked changes in behavior and form new vascular structures. A complex interaction among various growth and differentiation factors and the extracellular milieu regulates this behavior. One serie...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1038/ki.1993.5
更新日期：1993-01-01 00:00:00
abstract：:Iron is critical for cellular, organismal, and possibly universal existence. Use of iron complexes to treat human diseases is ancient and is described in detail in Ayurveda/Siddha systems of medicine. Old aphorisms from Siddha medicine ("Alavukku Minjinal Amirdhamum Nanjagum," an elixir turns poisonous when taken in e...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1016/j.kint.2016.02.035
更新日期：2016-07-01 00:00:00
abstract：:The autoregulatory ability of the renal vascular system in the split hydronephrotic kidney was quantitated with intravital microscopy. The luminal diameters of the arcuate and interlobular arteries as well as the afferent and efferent arterioles were measured. Glomerular blood flow was determined by the dual slit tech...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1989.104
更新日期：1989-05-01 00:00:00
abstract：:The effects of intravenous (i.v.) and intracarotid (IC) angiotensin II (AII) infusion on systemic and renal hemodynamics, renal water excretion, and plasma antidiuretic hormone (ADH) levels were examined in six conscious dogs under water loaded and hydropenic conditions. In the first group of seven studies, AII in a m...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1986.214
更新日期：1986-10-01 00:00:00
abstract：:Anti-neutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis involves innate and adaptive immune cells in the induction of autoimmunity and in autoimmune effector responses. Most Fcγ receptors (FcγRs) activate immune cells, but FcγRIIB, found in humans and mice on B cells and innate cells, is an inhibitor...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2014.189
更新日期：2014-12-01 00:00:00
