Abstract:
BACKGROUND:Cardiovascular death continues to be a major problem in renal failure. Structural abnormalities of the heart and the vasculature contribute to the increased cardiovascular risk. They are ameliorated by angiotensin-converting enzyme (ACE) inhibitors, but because of the nonspecifity of ACE inhibition, it is uncertain whether the beneficial effect is mediated by interfering with angiotensin II (Ang II) or by modulating other effector systems, for example, bradykinin. METHODS:To assess a potential role of bradykinin, subtotally nephrectomized Sprague-Dawley rats (SNX) received either the ACE inhibitor Ramipril (Rami, 0.2 mg/kg body weight p.o.), the specific B2 bradykinin receptor antagonist Hoe140 (0.2 mg/kg body weight, s.c.), or a combination of both, and were compared to sham-operated controls. To separately assess the effect of Ramipril on development and reversal of structural abnormalities, animals were either treated from the third day after SNX or from the fourth week after SNX onward (0.01 mg/kg body weight, p.o.). RESULTS:Heart and aorta were evaluated by morphometric and stereologic techniques. The weight of the perfused left ventricle, as an index of cardiac hypertrophy, was significantly higher in untreated SNX. While it was significantly lower in animals with early and late Ramipril treatment, the beneficial effect was completely antagonized by Hoe140. The wall-to-lumen ratio of intramyocardial arterioles was significantly higher in untreated SNX compared with controls, but failed to be modified by administration of either Ramipril or Hoe140. In the heart, the intercapillary distance was significantly higher in SNX, but it was not lowered by either early or late Ramipril or Hoe140 treatment. Treatment of SNX with Hoe140 alone, however, resulted in a marked further increase in intercapillary distance. The wall thickness of the aorta was significantly higher in SNX than in controls; early and late Ramipril treatment prevented such increase, and this effect was antagonized by Hoe140. CONCLUSION:These findings illustrate that bradykinin plays an important role for the beneficial effect of Ramipril in preventing (and potentially reversing) abnormal cardiovascular structure in uremic hypertensive rats.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Amann K,Gassmann P,Buzello M,Orth SR,Törnig J,Gross ML,Magener A,Mall G,Ritz Edoi
10.1046/j.1523-1755.2000.00163.xsubject
Has Abstractpub_date
2000-07-01 00:00:00pages
153-61issue
1eissn
0085-2538issn
1523-1755pii
S0085-2538(15)47084-Xjournal_volume
58pub_type
杂志文章abstract::We describe a rat model of renal failure that separates catabolic and anabolic states from each other. Muscle protein synthesis was compared during the anabolic period between sham (S) operated and renal failure (RF) rats that were fed different levels of dietary protein. Male rats weighing between 60 and 80 g first h...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1991.104
更新日期:1991-05-01 00:00:00
abstract::Focal and segmental glomerulosclerosis (FSGS) is a major cause of end-stage kidney disease. Recent advances in molecular genetics show that defects in the podocyte play a major role in its pathogenesis and mutations in inverted formin 2 (INF2) cause autosomal dominant FSGS. In order to delineate the role of INF2 mutat...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2011.297
更新日期:2012-01-01 00:00:00
abstract::It is unknown whether the association between body mass index (BMI) and chronic kidney disease (CKD) is mediated by genetic confounding or obesity-associated diabetes. We investigated the association between BMI and incident CKD in 29,136 Swedish twins with no history of CKD or diabetes, first using traditional Cox re...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1016/j.kint.2018.12.019
更新日期:2019-05-01 00:00:00
abstract::Urinary exosomes have received considerable attention as a potential biomarker source for the diagnosis of renal diseases. Notwithstanding, their use in protein biomarker research is hampered by the lack of efficient methods for vesicle isolation, lysis, and protein quantification. Here we report an improved ultracent...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2012.25
更新日期:2012-06-01 00:00:00
abstract::Acute kidney injury (AKI) occurs in about half of patients in septic shock and the mortality of AKI with sepsis is extremely high. An effective therapeutic intervention is urgently required. Statins are 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors that also have pleiotropic actions. They have been report...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/sj.ki.5000300
更新日期:2006-05-01 00:00:00
abstract::Epidermal growth factor receptor (EGFR) is a receptor tyrosine kinase. Its activation results in beneficial or detrimental consequences, depending on the particular setting. Earlier studies in the animal model of acute kidney injury showed that EGFR activation promotes renal tubular cell proliferation. Activation of E...
journal_title:Kidney international
pub_type: 杂志文章,评审
doi:10.1038/ki.2012.435
更新日期:2013-05-01 00:00:00
abstract:BACKGROUND:Nephrologists report that patients' choice should play an important role in the selection of renal replacement therapy (RRT) for end-stage renal disease (ESRD). In the United States, kidney transplant rates remain low and <10% of patients utilize home dialysis therapies. This study examined the effect of pre...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1111/j.1523-1755.2005.00453.x
更新日期:2005-07-01 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::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::Antioxidants have been used as therapies to decrease oxidative stress and improve CVD risk in hemodialysis (HD) patients. A systematic search of the Medline database (search date 30 April 2011) found 56 studies investigating the effects of antioxidant therapies on biomarkers of oxidative stress (53 studies) or clinica...
journal_title:Kidney international
pub_type: 杂志文章,评审
doi:10.1038/ki.2011.341
更新日期:2012-02-01 00:00:00
abstract::The relationship between body mass index (BMI) and end-stage renal disease (ESRD) is confounded by co-morbidities associated with both conditions. Furthermore, the association at low range BMI is controversial. We studied this association in the Singapore Chinese Health Study, a population-based prospective cohort tha...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1016/j.kint.2017.03.019
更新日期:2017-10-01 00:00:00
abstract::We have developed an immunological procedure for measuring advanced glycosylation end-products (AGEs) in serum. Using this method, we measured AGEs in healthy volunteers, patients with diabetes, renal failure without treatment and in patients with renal failure, treated with hemodialysis (HD) or continuous ambulatory ...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1994.262
更新日期:1994-07-01 00:00:00
abstract::Using a combination of intra-operative digital photography and micro-biopsy we measured renal cortical and papillary changes in five patients with primary hyperparathyroidism and abundant calcium phosphate kidney stones. Major tissue changes were variable papillary flattening and retraction, dilation of the ducts of B...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2008.161
更新日期:2008-07-01 00:00:00
abstract::Inflammation is a protective response to remove dangerous stimuli from the body. The multiprotein complex called the inflammasome regulates inflammation through the cleavage of proinflammatory cytokines into mature forms. Shahzad et al. unravel the importance of the Nlrp3 inflammasome, especially activated in glomerul...
journal_title:Kidney international
pub_type: 评论,杂志文章
doi:10.1038/ki.2014.322
更新日期:2015-01-01 00:00:00
abstract::Tenofovir, a widely prescribed antiretroviral medication for treatment of HIV-1 infection, is infrequently associated with renal dysfunction and biopsy findings of acute tubular necrosis. We examined the clinical and pathological findings in 13 cases of tenofovir nephrotoxicity (7 men and 6 women, mean age of 51.1±9.6...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2010.318
更新日期:2010-12-01 00:00:00
abstract::Stimulation of proximal tubule cell (PTC) growth in a variety of physiological and pathological renal conditions is preceded by increased renal production of transforming growth factor-beta 1 (TGF-beta 1) and by augmented tubular sodium transport via activated sodium hydrogen exchange (NHE). Since TGF-beta 1 has been ...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.1998.00916.x
更新日期:1998-06-01 00:00:00
abstract::Levels of prepro epidermal growth factor (EGF) mRNA in renal cortical tissue and urinary EGF excretion have been determined during cisplatin and ischemia-induced acute renal failure in the rat. Northern analysis of polyadenylated RNAs of kidney cortical tissue showed diminished renal preproEGF mRNA in rats injected wi...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1989.266
更新日期:1989-11-01 00:00:00
abstract:BACKGROUND:A family history increases the risk of kidney stone passage independent of dietary risk factors. However, the metabolic basis for familial aggregation of urolithiasis is unknown. METHODS:We evaluated metabolic risk factors in families with at least two sibs with a history of calcium stones. Sibs underwent o...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1046/j.1523-1755.2001.0600031141.x
更新日期:2001-09-01 00:00:00
abstract::Anti-NDP has been detected in the sera of 38 of 430 patients on regular hemodialysis at the Regional Kidney Disease Program in Minneapolis. It developed in these patients from 7 to 58 months after commencement of dialysis. Bacterial infection appeared temporally related to the development of anti-NDP in 12 patients. H...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1976.133
更新日期:1976-12-01 00:00:00
abstract::The generation of reactive oxygen species has a pivotal role in both acute and chronic glomerular injuries in patients with lupus nephritis. As the transcription factor Nrf2 is a major regulator of the antioxidant response and is a primary cellular defense mechanism, we sought to determine a role of Nrf2 in the progre...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2013.343
更新日期:2014-02-01 00:00:00
abstract::Pathologic calcification is a significant cause of increased morbidity and mortality in patients with chronic kidney disease. The precise mechanisms of ectopic calcification are not fully elucidated, but it is known to be caused by an imbalance of procalcific and anticalcific factors. In the chronic kidney disease pop...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1016/j.kint.2015.12.046
更新日期:2016-05-01 00:00:00
abstract::A genome-wide association scan of the Genetics of Kidneys in Diabetes (GoKinD) collections identified four novel susceptibility loci, located on chromosomes 7p14.3, 9q21.32, 11p15.4, and 13q33.3 associated with type 1 diabetic nephropathy. A recent evaluation of these loci in Japanese patients with type 2 diabetes sup...
journal_title:Kidney international
pub_type: 杂志文章,meta分析
doi:10.1038/ki.2011.64
更新日期:2011-07-01 00:00:00
abstract::An open, randomized trial study on the therapeutic effect of recombinant alpha-interferon (IFN alpha) in 40 patients with hepatitis B virus membranous nephropathy (HBVMN) was conducted. All were pathologically proven to have HBVMN which showed no response to corticosteroid treatment represented by persistent heavy pro...
journal_title:Kidney international
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1038/ki.1995.27
更新日期:1995-01-01 00:00:00
abstract::Atypical hemolytic uremic syndrome (aHUS) is a form of thrombotic microangiopathy (TMA) caused by dysregulated complement activation. Clinically, aHUS is effectively treated by an anti-C5 monoclonal antibody (mAb) but whether the disease is mediated by the C5a receptor (C5aR) or C5b-9 pathway, or both, is unknown. Her...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1016/j.kint.2019.01.009
更新日期:2019-07-01 00:00:00
abstract::Mice chronically infected with the virus of lymphocytic choriomeningitis (LCM) develop immune complex glomerulonephritis. Others have shown that adoptive immunization of these mice by the i.p. injection of syngeneic immune spleen cells terminates the chronic viral carrier state. The present studies were designed to de...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1977.49
更新日期:1977-05-01 00:00:00
abstract::The microcirculation is regulated by oxygen gradients and by endothelial release of nitric oxide, which can react with hemoglobin to form S-nitroso derivatives. Here we induced flow-mediated dilatation of the brachial artery in response to ischemia in 141 non-diabetic patients with stage 3-4 chronic kidney disease who...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2009.63
更新日期:2009-06-01 00:00:00
abstract::Ischemia-reperfusion injury is an important cause of graft failure. Because carnitine regulates substrate flux and energy balance across membranes which may be deranged in ischemia we determined whether its use was effective in preventing kidney injury in an allogeneic transplant model. Brown Norway rats received a Le...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.2008.399
更新日期:2008-12-01 00:00:00
abstract::Renal toxicity, possibly due to vasoconstriction and vascular injury, is the most relevant side-effect of chronic cyclosporine (CsA) therapy given to prevent graft rejection. In kidney transplant recipients each oral dose of CsA is invariably followed by a transient reduction in renal plasma flow (RPF) and glomerular ...
journal_title:Kidney international
pub_type: 临床试验,杂志文章
doi:10.1038/ki.1993.101
更新日期:1993-03-01 00:00:00
abstract::In the present study we assessed the prevalence of thin glomerular basement membrane (TGBM) in a large group of native kidney biopsies done for evaluation of renal disease. TGBM was present in 54 of 1078 biopsies (5%). In 12 of 54 biopsies (24%), TGBM was the only abnormality present. In the remaining biopsies TGBM wa...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1994.296
更新日期:1994-08-01 00:00:00
abstract::To evaluate the effect of continuous ambulatory peritoneal dialysis (CAPD) on the anemia of endstage renal disease, serial measurements of red cell mass and other hematological parameters were performed in 34 patients. Twenty-five patients were measured at the start and at 6 months (group 1), 13 at the start, at 6 and...
journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1983.88
更新日期:1983-05-01 00:00:00