abstract：:There is mounting evidence that elevated serum phosphorus is an important cardiovascular risk factor in patients with end stage renal disease. Recent work has shown that vascular smooth muscle cells have the ability to undergo osteoblastic differentiation and produce an environment conducive to mineralization. Serum p...

journal_title：Current opinion in nephrology and hypertension

authors： Block GA

更新日期：2001-11-01 00:00:00

abstract：:The present review considers the role that bisphosphonates might have in patients with renal failure. Although bisphosphonates are widely used to reduce fracture risk in patients with osteoporosis, few studies have documented their effect in patients with renal osteodystrophy. The pathogenesis of bone loss after renal...

journal_title：Current opinion in nephrology and hypertension

authors： Fan SL,Cunningham J

更新日期：2001-09-01 00:00:00

abstract：:Magnesium is an important, predominantly intracellular cation that is required for a wide variety of cellular processes. The mammalian kidney plays a key role in whole-body magnesium homeostasis, but the molecular and cellular mechanisms that underlie renal epithelial magnesium reabsorption are poorly understood. Trad...

journal_title：Current opinion in nephrology and hypertension

authors： Yu AS

更新日期：2001-09-01 00:00:00

abstract：:Our basic understanding of sodium mechanisms provides unique insights into epithelial transport processes, and unusual clinical syndromes can arise from mutations of these ion transporters. These genetic disorders affect sodium balance, with both sodium-retaining and sodium-wasting conditions being the consequence. A ...

journal_title：Current opinion in nephrology and hypertension

authors： Warnock DG

更新日期：2001-07-01 00:00:00

abstract：:Elevated serum uric acid is a frequent finding in patients with kidney disease and cardiovascular disease. Intrarenal ischaemia, induced by hypertension, increased sympathetic nervous system activity, and hyperinsulinaemia have all been implicated in reduced renal clearance of urate. This frequently results in elevate...

journal_title：Current opinion in nephrology and hypertension

authors： Culleton BF

更新日期：2001-05-01 00:00:00

abstract：:The complex multifactorial inheritance pattern of systemic lupus erythematosus in various murine models has been dissected via both classic genetic analysis and the use of modern technologies in genomic manipulation. Current information suggests that lupus may be mediated by a multitude of genetic abnormalities that i...

journal_title：Current opinion in nephrology and hypertension

authors： Yim YS,Wakeland EK

更新日期：2001-05-01 00:00:00

abstract：:Ischemic nephropathy is a major cause of chronic renal failure in people over 50 years of age. In addition, renal artery stenosis is associated with increased mortality, particularly if renal or cardiac function is compromised. The diagnosis is made both by clinical characteristics and imaging studies. At present, dup...

journal_title：Current opinion in nephrology and hypertension

authors： Tuttle KR

更新日期：2001-03-01 00:00:00

abstract：:The signalling mechanisms and biological significance of the angiotensin II type 2 receptor have long been unknown. In recent years, studies, first in cell culture models but now increasingly also in vivo, have shed some light on the molecular events occurring after a stimulation of the receptor with its ligand as wel...

journal_title：Current opinion in nephrology and hypertension

authors： Blume A,Kaschina E,Unger T

更新日期：2001-03-01 00:00:00

abstract：:The precise adaptation of renal sodium excretion to systemic needs is to a large extent achieved by the regulation of sodium re-absorption in the aldosterone-sensitive distal nephron. Transcellular sodium re-absorption by the segment-specific cells of the aldosterone-sensitive distal nephron (often called principal ce...

journal_title：Current opinion in nephrology and hypertension

authors： Verrey F

更新日期：2001-01-01 00:00:00

abstract：:Tests have become available that not only give an index of iron stores and availability but also provide an integrated assessment of the efficacy of its utilization. This has allowed the revision of previously accepted criteria of iron deficiency as well as the most appropriate strategies for iron administration. By o...

journal_title：Current opinion in nephrology and hypertension

authors： van Zyl-Smit R

更新日期：2000-11-01 00:00:00

abstract：:Crystals of calcium oxalate and calcium phosphate bind to anionic molecules on the apical surface of renal collecting duct cells. Atomic arrays on crystal faces interact stereospecifically with cell-surface anions to bind crystals that nucleate in tubular fluid, or those that nucleate directly on the plasma membrane. ...

journal_title：Current opinion in nephrology and hypertension

authors： Lieske JC,Toback FG

更新日期：2000-07-01 00:00:00

abstract：:The pathogenesis of acute renal failure has been attributed to persistent vasoconstriction and leukocyte-endothelial interactions, resulting in inflammation and compromise of local blood flow to the outer medulla, the loss of tubular epithelial cell polarity with multiple functional sequelae, necrosis or apoptosis of ...

journal_title：Current opinion in nephrology and hypertension

authors： Sheridan AM,Bonventre JV

更新日期：2000-07-01 00:00:00

abstract：:The prevalence of hypertension is extremely high in end-stage renal disease, and is a probable contributor to the epidemic of cardiovascular disease in end-stage renal disease. However, the paucity of prospective, randomized clinical trials makes it difficult to precisely define treatment strategies. Therefore, at pre...

journal_title：Current opinion in nephrology and hypertension

authors： Zager P,Nikolic J,Raj DS,Tzamaloukas A,Campbell M

更新日期：2000-05-01 00:00:00

abstract：:Acute hypertension provokes a rapid decrease in proximal tubule salt and water reabsorption that increases the levels of sodium chloride at the macula densa, the error signal to increase arteriolar resistance to autoregulate renal blood flow and glomerular filtration rate, and contributes to pressure natriuresis. The ...

journal_title：Current opinion in nephrology and hypertension

authors： Magyar CE,McDonough AA

更新日期：2000-03-01 00:00:00

abstract：:Renal synthesis of the active form of vitamin D, 1,25-dihydroxyvitamin D3 [1,25(OH)2D3], is a pivotal step in calcium and phosphate homeostasis. Production of 1,25(OH)2D3 is catalyzed by the mitchondrial cytochrome P450, 25-hydroxyvitamin D3-1alpha-hydroxylase (1alpha-HYD). As a consequence of the tight regulation of ...

journal_title：Current opinion in nephrology and hypertension

authors： Bland R,Zehnder D,Hewison M

更新日期：2000-01-01 00:00:00

abstract：:After renal transplantation, acute allograft dysfunction secondary to acute rejection occurs in around 30-40% of patients. Although in the majority of patients these episodes are reversible, acute rejection remains a major risk factor for the development of chronic rejection. Remarkably, prior episodes of acute allogr...

journal_title：Current opinion in nephrology and hypertension

authors： Chandraker A

更新日期：1999-11-01 00:00:00

abstract：:The target hematocrit to be achieved when treating anemia in hemodialysis patients with erythropoietin is controversial. Current evidence-based recommendations suggest a target hematocrit range of 33% to 36%. Small studies suggest that normalization of hematocrit with erythropoietin may benefit hemodialysis patients i...

journal_title：Current opinion in nephrology and hypertension

authors： Murphy ST,Parfrey PS

更新日期：1999-09-01 00:00:00

abstract：:The characteristic structure of polarized proximal tubule cells is drastically altered by the onset of ischemic acute renal failure. Distinctive apical brush border microvilli disruption occurs rapidly and in a duration-dependent fashion. Microvillar membranes internalize into the cytosol of the cell or are shed into ...

journal_title：Current opinion in nephrology and hypertension

authors： Ashworth SL,Molitoris BA

更新日期：1999-07-01 00:00:00

abstract：:The cardinal feature of systemic lupus erythematosus is the formation of anti-nuclear antibodies. In recent years, it has become clear that the nucleosome is a major autoantigen that drives this T cell-dependent autoimmune response, as exemplified by the presence of nucleosome-specific T helper cells and the high prev...

journal_title：Current opinion in nephrology and hypertension

authors： Berden JH,Licht R,van Bruggen MC,Tax WJ

更新日期：1999-05-01 00:00:00

abstract：:Aldosterone plays a major role in the regulation of renal sodium reabsorption, of extracellular fluid volume and blood pressure. Such specific mineralocorticoid physiological adaptations occur despite the large prevalence of glucocorticoid hormones over aldosterone in the plasma. Indeed both classes of hormones bind w...

journal_title：Current opinion in nephrology and hypertension

authors： Farman N

更新日期：1999-01-01 00:00:00

abstract：:Patient non-compliance with the dialysis treatment prescription has often been overlooked as an important variable that contributes to outcomes in end-stage renal disease. This review discusses evidence from a limited number of researchers that such behavior may be as important as the traditional medical indicators th...

journal_title：Current opinion in nephrology and hypertension

authors： Bander SJ,Walters BA

更新日期：1998-11-01 00:00:00

abstract：:Increasing evidence implicates reactive oxygen species in the pathogenesis of hypertension and its cardiovascular complications. By altering the balance in the endothelium between vasoconstrictors such as thromboxane and isoprostanes and vasodilators such as nitric oxide, reactive oxygen species contribute to endothel...

journal_title：Current opinion in nephrology and hypertension

authors： Kitiyakara C,Wilcox CS

更新日期：1998-09-01 00:00:00

abstract：:Heat shock proteins, or stress proteins, are molecular chaperones responsible for protein processing and protection against cellular injury through the prevention of inappropriate peptide interactions. The distribution of individual stress proteins varies between regions of the kidney and within subcellular compartmen...

journal_title：Current opinion in nephrology and hypertension

authors： Van Why SK,Siegel NJ

更新日期：1998-07-01 00:00:00

abstract：:Acute ischemic or toxic injury to the kidney induces alterations in the expression of many genes. Some of these molecular responses have been termed 'maladaptive' because they exacerbate the tubular damage induced by the initiating insult. Some maladaptive responses include alterations in the activity of nitric oxide ...

journal_title：Current opinion in nephrology and hypertension

authors： Lieberthal W

更新日期：1998-05-01 00:00:00

abstract：:During the past 12 months additional evidence has emerged from several studies, indicating that hepatitis C virus infection is the most important liver disease after renal transplantation. A new, severe and rare entity called fibrosing cholestatic hepatitis can lead to early liver failure, although the most important ...

journal_title：Current opinion in nephrology and hypertension

authors： Morales JM,Campistol JM,Andrés A,Rodicio JL

更新日期：1998-03-01 00:00:00

abstract：:The mitochondrial enzyme monoamine oxidases A and B are among the major metabolic agents for the degradation of the biogenic amines adrenaline, noradrenaline, dopamine and serotonin. The fact that the kidney contains a large amount of monoamine oxidase suggests that the renal effects of biogenic amines might depend in...

journal_title：Current opinion in nephrology and hypertension

authors： Pizzinat N,Remaury A,Parini A

更新日期：1998-01-01 00:00:00

abstract：:Several lines of evidence indicate a significant association between insulin and cardiovascular disease. This association might be explained by direct (cardio) vascular effects of insulin. Two hemodynamic actions of insulin are discussed in this review; it induces direct vasodilation in skeletal muscle and stimulation...

journal_title：Current opinion in nephrology and hypertension

authors： Tack CJ,Lenders JW,Goldstein DS,Lutterman JA,Smits P,Thien T

更新日期：1998-01-01 00:00:00

abstract：:Ischemic heart disease is the major cause of death in dialysis patients. Efforts at coronary artery disease detection in end-stage renal disease patients have primarily focused on the cardiac evaluation of 'high-risk' renal transplant candidates. Despite their high cardiac risk, no data exist on the results of reperfu...

journal_title：Current opinion in nephrology and hypertension

authors： Herzog CA

更新日期：1997-11-01 00:00:00

abstract：:Cells in renal medullas are exposed to a high concentration of salt during antidiuresis. They adapt in part by accumulating myo-inositol, glycine betaine, taurine, and other amino acids by transporting them from the interstitial fluid. This transport is osmotically regulated by changes in transcription of the transpor...

journal_title：Current opinion in nephrology and hypertension

authors： Burg MB

更新日期：1997-09-01 00:00:00

abstract：:Chronic renal disease evolves to end-stage renal failure through events, including enhanced intraglomerular pressure and plasma protein ultrafiltration, mediated at least in part by angiotensin II. Angiotensin-converting enzyme inhibitors reduce intracapillary pressure and ameliorate glomerular size-selective function...

journal_title：Current opinion in nephrology and hypertension

authors： Ruggenenti P,Remuzzi G

更新日期：1997-09-01 00:00:00

abstract：:The parathyroid normally has very few cells in mitosis but it retains the potential to proliferate. In-vivo studies in rats have demonstrated that hypocalcaemia and high serum phosphate both lead to an increase in the number of proliferating cells, which is relevant to the increased parathyroid cell proliferation in c...

journal_title：Current opinion in nephrology and hypertension

authors： Silver J,Sela SB,Naveh-Many T

更新日期：1997-07-01 00:00:00

abstract：:Overexpression of the cytokine transforming growth factor-beta has been identified as the key mediator of chronic progressive kidney fibrosis in experimental and human kidney diseases. The renoprotective effects of angiotensin II blockade and low-protein diets have recently been linked to downregulation of transformin...

journal_title：Current opinion in nephrology and hypertension

authors： Peters H,Noble NA,Border WA

更新日期：1997-07-01 00:00:00

abstract：:Recent insights into the etiopathogenesis of nephritogenic immune responses are derived primarily from experimental models of systemic and organ-specific autoimmunity. Genetic analyses and immune-related gene ablation studies indicate that multiple independent mechanisms determine disease susceptibility. However, full...

journal_title：Current opinion in nephrology and hypertension

authors： Fitzsimons MM,Foster MH

更新日期：1997-05-01 00:00:00

abstract：:The recognition that cell death in the myocardium is not only necrotic in nature but is also mediated by activation of the suicide program of myocytes has raised several questions concerning the magnitude of this phenomenon, and whether these two distinct forms of cell death are disease-dependent or coexist in the pat...

journal_title：Current opinion in nephrology and hypertension

authors： Anversa P,Olivetti G,Leri A,Liu Y,Kajstura J

更新日期：1997-03-01 00:00:00

abstract：:The proximal tubule in the kidney is a main organ for the metabolic clearance of small peptide hormones, and is intensively involved in reabsorption, storage and homeostatic regulation of different vitamins. Recently, the endocytic membrane protein megalin has been shown to bind several smaller peptides, including ins...

journal_title：Current opinion in nephrology and hypertension

authors： Christensen EI,Birn H

更新日期：1997-01-01 00:00:00

abstract：:The vasculature wall is an active, integrated organ composed of endothelial cells and vascular smooth muscle cells, as well as other cell types depending on the specific vascular segment (e.g. fibroblasts in many vascular regions). The vascular wall is not static; the vascular components (cells and extracellular matri...

journal_title：Current opinion in nephrology and hypertension

authors： Dubey RK,Jackson EK,Rupprecht HD,Sterzel RB

更新日期：1997-01-01 00:00:00

abstract：:Volume regulatory mechanisms are reviewed for both short- and long-term adaptation of renal cells to anisotonic media. Within minutes after exposure to hypotonic solutions a common feature of many renal cells is the increase in plasma membrane potassium and chloride conductances. Although extrusion of intracellular po...

journal_title：Current opinion in nephrology and hypertension

authors： Laprade R,Noulin JF,Lapointe JY

更新日期：1996-09-01 00:00:00

abstract：:It is well known that hyperparathyroidism begins early in renal failure and progresses, probably not linearly, throughout the natural course of renal diseases and dialysis therapy. Recent progress in basic medical science has improved our understanding of the mechanisms by which the classically known stimuli for parat...

journal_title：Current opinion in nephrology and hypertension

authors： Argilés A,Mourad G,Mion C

更新日期：1996-07-01 00:00:00

abstract：:Historically, studies in humans have not shown conclusively that low-protein diets ameloriate the progression of renal disease. However, recent trials have demonstrated that, in patients with advanced renal insufficiency, low-protein diets may slow the loss of renal function and defer the onset of end-stage renal dise...

journal_title：Current opinion in nephrology and hypertension

authors： Klahr S

更新日期：1996-07-01 00:00:00

abstract：:Experimental animal models and cell culture techniques, highlighting the central role of glucose metabolism, have provided important insight into the pathogenesis of diabetic nephropathy. Microalbuminuria and other candidate phenotypic or genotypic markers for the early onset of disease are discussed. Management recom...

journal_title：Current opinion in nephrology and hypertension

authors： Mogyorósi A,Ziyadeh FN

更新日期：1996-05-01 00:00:00