abstract：:Transport and metabolism of adenosine were studied in the S1, S2, and S3 segments of the rabbit proximal renal tubule. Isolated segments were perfused in vitro with uniformly labelled 14C-adenosine to measure the lumen-to-bath flux of adenosine. This flux rate was measured by the disappearance of 14C from the luminal ...

journal_title：Kidney international

authors： Barfuss DW,McCann WP,Katholi RE

更新日期：1992-05-01 00:00:00

abstract：:Low-density lipoprotein was derived from carbamyl (carbamyl-LDL) by incubating LDL in potassium cyanate (KCNO). The proportion of free amino groups in the carbamyl-LDL was negatively correlated (r = -0.95) with the time of incubation in potassium cyanate (ranged from 5 to 360 min). The carbamylation did not change the...

journal_title：Kidney international

authors： Hörkkö S,Savolainen MJ,Kervinen K,Kesäniemi YA

更新日期：1992-05-01 00:00:00

abstract：:This study was undertaken to test the hypothesis that, given equal arterial pressure reductions, the combination of an angiotensin converting enzyme (ACE) inhibitor and calcium antagonist slows declines in renal function and yields greater reductions in albuminuria over either agent alone. This hypothesis was evaluate...

journal_title：Kidney international

authors： Bakris GL,Barnhill BW,Sadler R

更新日期：1992-04-01 00:00:00

abstract：:The prevalence of raised Na+/Li+ countertransport (CT) activity (greater than 0.41 mmol/liter RBC/hr) was assessed in 185 consecutive insulin-dependent diabetic patients attending an outpatient diabetic clinic. Normoalbuminuria was defined as an overnight albumin excretion rate (AER) of less than 20 micrograms/min (N ...

journal_title：Kidney international

authors： Lopes de Faria JB,Friedman R,Tariq T,Viberti G

更新日期：1992-04-01 00:00:00

abstract：:These studies were undertaken to examine effects of elevated glucose levels on glycolysis, sorbitol pathway activity, and the cytosolic redox state of NADH/NAD+ in isolated glomeruli. Blood-free glomeruli were isolated from kidneys of male, Sprague-Dawley rats using standard sieving techniques, then incubated for one ...

journal_title：Kidney international

authors： Tilton RG,Baier LD,Harlow JE,Smith SR,Ostrow E,Williamson JR

更新日期：1992-04-01 00:00:00

abstract：:Methods for estimating glomerular volume were compared in Zenker-fixed, paraffin-embedded biopsies from 10 patients with insulin-dependent diabetes mellitus and 6 normal kidney donors. Two methods of measurement of individual glomerular volumes were used: the Cavalieri method (considered the "gold standard") and the m...

journal_title：Kidney international

authors： Lane PH,Steffes MW,Mauer SM

更新日期：1992-04-01 00:00:00

abstract：:In hemodialysis patients with hyperkalemia, i.v. sodium bicarbonate has recently been found to be ineffective in lowering plasma potassium within one hour. In the present study the effect of a prolonged bicarbonate infusion on plasma potassium was investigated. Twelve patients with terminal renal failure who were on h...

journal_title：Kidney international

authors： Blumberg A,Weidmann P,Ferrari P

更新日期：1992-02-01 00:00:00

abstract：:Since the kidney medulla was reported to generate platelet activating factor (PAF), we investigated a possible effect of this agent on the reabsorptive function of in vitro microperfused medullary thick ascending limbs from mouse kidney (mTAL). PAF, 10(-7) M in the bath, significantly decreased the net chloride flux (...

journal_title：Kidney international

authors： Bailly C,Barlet-Bas C,Amiel C

更新日期：1992-02-01 00:00:00

abstract：:Transgenic rats [TGR; strain name TGR(mRen2)27] harboring the mouse Ren-2 renin gene have been recently generated as a model for the study of primary hypertension that offers the advantage of a clearly-defined genetic alteration. Expression of the mouse Ren-2 gene causes severe hypertension (200 to 260 mm Hg) which is...

journal_title：Kidney international

authors： Bachmann S,Peters J,Engler E,Ganten D,Mullins J

更新日期：1992-01-01 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

authors： Alvarez RJ,Sun MJ,Haverty TP,Iozzo RV,Myers JC,Neilson EG

更新日期：1992-01-01 00:00:00

abstract：:Osteonectin (SPARC, culture shock protein, BM-40) is a widely distributed glycoprotein which binds calcium and several extracellular matrix proteins, including interstitial collagens and thrombospondin, but whose physiologic role remains undefined. In the present studies, we have demonstrated that immunoreactive osteo...

journal_title：Kidney international

authors： Kopp JB,Bianco P,Young MF,Termine JD,Robey PG

更新日期：1992-01-01 00:00:00

abstract：:To investigate whether the administration of cimetidine can improve the reliability of creatinine as a marker of GFR, we compared the creatinine clearance (CCr) to the clearance of the true filtration markers 51Cr-EDTA (CEDTA) and inulin (CIn), after oral ingestion of cimetidine in 10 healthy men and 29 patients with ...

journal_title：Kidney international

authors： Hilbrands LB,Artz MA,Wetzels JF,Koene RA

更新日期：1991-12-01 00:00:00

abstract：:The impacts of IgA nephropathy and pregnancy on each other were evaluated in 118 women who conceived 168 times between 1970 and 1988. Rates of spontaneous abortion, normal delivery, live birth and perinatal death were 9, 66, 87 and 4%, respectively. Infants born to women with glomerular filtration rates (GFR) lower th...

journal_title：Kidney international

authors： Abe S

更新日期：1991-12-01 00:00:00

abstract：:In normal subjects, beta-adrenergic stimulation lowers the serum potassium, whereas alpha-stimulation raises it. Epinephrine, a mixed alpha and beta agonist, acutely lowers the blood potassium in normal subjects, but not in patients with end-stage renal disease. This study was designed to determine whether the resista...

journal_title：Kidney international

authors： Allon M,Shanklin N

更新日期：1991-12-01 00:00:00

abstract：:Antibody responses to antigens are impaired in humans and animals with chronic renal failure (CRF), and parathyroid hormone (PTH) inhibits Staphylococcus aureus Cowan I (SAC) or pokeweed mitogen (PWM)-induced antibody production by B cells from normal subjects. Since CRF is associated with secondary hyperparathyroidis...

journal_title：Kidney international

authors： Gaciong Z,Alexiewicz JM,Massry SG

更新日期：1991-11-01 00:00:00

abstract：:To maintain nitrogen equilibrium when prescribed a low protein diet (LPD), metabolic adaptations occur involving a reduction protein turnover, principally decreased muscle protein degradation. Studies suggest that in patients with chronic renal failure (CRF) uncomplicated by metabolic acidosis (MA), these adaptive res...

journal_title：Kidney international

authors： Williams B,Hattersley J,Layward E,Walls J

更新日期：1991-10-01 00:00:00

abstract：:Calcitonin secretion is stimulated by acute hypercalcemia. Furthermore, in the rat, the calcemic response to parathyroid hormone (PTH) is decreased by calcitonin stimulation. However, in renal failure, it is not known if an increase in the serum calcium concentration within the physiologic range of serum calcium stimu...

journal_title：Kidney international

authors： Torres A,Rodriguez M,Felsenfeld A,Martin-Malo A,Llach F

更新日期：1991-10-01 00:00:00

abstract：:The widths of slit diaphragms in rat glomeruli were quantitatively measured on electron micrographs obtained by the rapid-freezing and freeze-substitution (FS) fixation method and compared to those prepared by conventional chemical fixation procedures, such as tannic acid, glutaraldehyde and osmium tetroxide (TGO) or ...

journal_title：Kidney international

authors： Furukawa T,Ohno S,Oguchi H,Hora K,Tokunaga S,Furuta S

更新日期：1991-10-01 00:00:00

abstract：:Angiotensin converting enzyme (ACE) inhibitors are known to lower urinary protein excretion in human renal disease. This proteinuria lowering effect of ACE inhibition has been hypothesized to be a result of renal hemodynamic changes due to the inhibition of angiotensin II (Ang II) production. To test this hypothesis w...

journal_title：Kidney international

authors： Heeg JE,de Jong PE,van der Hem GK,de Zeeuw D

更新日期：1991-10-01 00:00:00

abstract：:In experimental membranous nephropathy, antibody binding to glomerular epithelial cell membrane antigens results in complement activation and formation of complement C5b-9 membrane attack complexes in glomeruli. During active disease, the C5b-9 complexes are shed into the urine. To test the hypothesis that a similar m...

journal_title：Kidney international

authors： Schulze M,Donadio JV Jr,Pruchno CJ,Baker PJ,Johnson RJ,Stahl RA,Watkins S,Martin DC,Wurzner R,Gotze O

更新日期：1991-09-01 00:00:00

abstract：:The candidacidal activity of kidneys, liver, and spleen's phagocytic systems was studied in mouse. Different strains of mice were inoculated intravenously (i.v.) with 1 to 2.6 x 10(4) viable Candida albicans. Elimination of the microorganisms from the kidneys, liver, and spleen were evaluated by enumeration of colony ...

journal_title：Kidney international

authors： Baghian A,Lee KW

更新日期：1991-09-01 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

authors： Kirchner KA,Voelker JR,Brater DC

更新日期：1991-09-01 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

authors： Mercatello A,Hadj-Aïssa A,Négrier S,Allaouchiche B,Coronel B,Tognet E,Bret M,Favrot M,Pozet N,Moskovtchenko JF

更新日期：1991-08-01 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

authors： Rodriguez M,Felsenfeld AJ,Torres A,Pederson L,Llach F

更新日期：1991-08-01 00:00:00

abstract：:Human mesangial cells (MC) in culture, when stimulated by interleukin 1 alpha(IL-1 alpha) or tumour necrosis factor (TNF alpha), but not with lipopolysaccharide (LPS), express interleukin 8 (IL-8) mRNA, and both cell associated and extracellular IL-8. Dexamethasone treatment of mesangial cells induced partial inhibiti...

journal_title：Kidney international

authors： Brown Z,Strieter RM,Chensue SW,Ceska M,Lindley I,Neild GH,Kunkel SL,Westwick J

更新日期：1991-07-01 00:00:00

abstract：:Class II gene products of the major histocompatibility complex (MHC) are not expressed usually in abundance on normal epithelium. The cell surface visibility of such proteins for the immune system is thought to be limited protectively in order to minimize inflammation consequent to the recognition of self-antigens in ...

journal_title：Kidney international

authors： Albert SE,Shelton K,Sun MJ,Neilson EG

更新日期：1991-07-01 00:00:00

abstract：:Antibodies against purified rat-kidney-cortex pyruvate carboxylase were raised in rabbits. These polyspecific antibodies recognize pyruvate carboxylase enzymes alone without cross reactivity with other carboxylases as detected by immunoblotting. The abundance of pyruvate carboxylase in the various renal fractions was ...

journal_title：Kidney international

authors： Salto R,Oliver J,del Mar Sola M,Vargas AM

更新日期：1991-06-01 00:00:00

abstract：:Recent studies suggest the presence of local angiotensin generating system in the kidney. By using in situ hybridization technique, mRNA for angiotensinogen has been shown to be present in the proximal tubule. In the present study, we have attempted to examine the production of angiotensinogen and renin-like activity ...

journal_title：Kidney international

authors： Yanagawa N,Capparelli AW,Jo OD,Friedal A,Barrett JD,Eggena P

更新日期：1991-05-01 00:00:00

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

authors： Baliga R,George VT,Ray PE,Holliday MA

更新日期：1991-05-01 00:00:00

abstract：:The improvement in the anemia in patients with end-stage renal disease (ESRD) on continuous ambulatory peritoneal dialysis (CAPD) suggests that dialyzable substances present in the sera of uremic patients either inhibit erythropoiesis directly or inactivate erythropoietin (EPO). In the present study predialysis sera f...

journal_title：Kidney international

authors： Kushner D,Beckman B,Nguyen L,Chen S,Della Santina C,Husserl F,Rice J,Fisher JW

更新日期：1991-04-01 00:00:00

abstract：:Chronic cyclosporine nephrotoxicity is a poorly understood drug side-effect characterized by renal cortical interstitial scarring. To evaluate procollagen mRNA levels as an early factor in the development of this form of renal fibrosis, we measured renal procollagen alpha 1 (I), alpha 1 (III), alpha 1 (IV) and beta-ac...

journal_title：Kidney international

authors： Nast CC,Adler SG,Artishevsky A,Kresser CT,Ahmed K,Anderson PS

更新日期：1991-04-01 00:00:00

abstract：:In rodents, mercuric chloride (HgCl2) causes an autoimmune disorder with glomerulonephritis (GN), and represents an animal model for the pathogenesis of GN. We have tested the hypothesis that HgCl2 induces major histocompatibility complex (MHC) expression in renal parenchymal cells, and studied the kinetics of this in...

journal_title：Kidney international

authors： Madrenas J,Parfrey NA,Halloran PF

更新日期：1991-02-01 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

authors： Kniaz D,Pahlavan P,Valaitis D,Arruda JA

更新日期：1991-02-01 00:00:00

abstract：:The contractile properties of recombinant human erythropoietin (rHuEPO) on isolated resistance vessels of renal and mesenteric vascular beds were studied in an in vitro model using a small vessel myograph. Under isometric conditions, rHuEPO caused a contraction of this vasculature in a concentration range between 10 U...

journal_title：Kidney international

authors： Heidenreich S,Rahn KH,Zidek W

更新日期：1991-02-01 00:00:00

abstract：:Insulin-like growth factor I (IGF-I) has been found in the kidney, particularly in the collecting duct in the rat. Since cultured rabbit collecting duct cells constitute a convenient system for in vitro studies, we have examined whether these cells secrete IGF-I. Culture medium conditioned by collecting duct cells was...

journal_title：Kidney international

authors： Aron DC,Saadi HF,Nye CN,Douglas JG

更新日期：1991-01-01 00:00:00

abstract：:The present study was undertaken to evaluate some pathophysiological mechanisms of edema formation in diabetic nephropathy. Sixty-three subjects were investigated: 9 normal subjects (I), 9 normoalbuminuric Type 1 (insulin-dependent) diabetic patients (II), 15 microalbuminuric Type 1 diabetic patients (III), 16 Type 1 ...

journal_title：Kidney international

authors： Hommel E,Mathiesen ER,Aukland K,Parving HH

更新日期：1990-12-01 00:00:00

abstract：:We studied the effect of three antihypertensive drugs on the growth of glomeruli in four- to five-week-old Munich-Wistar rats (N = 24), which were undergoing rapid maturation processes. Young rats were given an angiotensin converting enzyme inhibitor (ACEI, enalapril, 50 mg/liter drinking water), verapamil (50 mg/lite...

journal_title：Kidney international

authors： Fogo A,Yoshida Y,Yared A,Ichikawa I

更新日期：1990-12-01 00:00:00

abstract：:In a double-blind, randomized, placebo-controlled cross-over study, we investigated in seven patients with chronic renal failure the effect of conjugated estrogens (0.6 mg/kg/day for 5 days) on template bleeding time and on thromboxane A2 (TxA2), beta-thromboglobulin (beta-TG) and prostacyclin (PGI2) concentrations in...

journal_title：Kidney international

authors： Heistinger M,Stockenhuber F,Schneider B,Pabinger I,Brenner B,Wagner B,Balcke P,Lechner K,Kyrle PA

更新日期：1990-12-01 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

authors： Villamediana LM,Rondeau E,He CJ,Medcalf RL,Peraldi MN,Lacave R,Delarue F,Sraer JD

更新日期：1990-11-01 00:00:00

abstract：:We studied the adaptation to early (72 hr) and late (20 days) K loading (400 mmol/day, 4 equal meals every 6 hour) in six healthy humans. Throughout the study, each single K meal was followed by an acute transient rise in plasma K, aldosterone and kaliuresis. "K balance" (urinary K excretion approximately 80% of intak...

journal_title：Kidney international

authors： Rabelink TJ,Koomans HA,Hené RJ,Dorhout Mees EJ

更新日期：1990-11-01 00:00:00