Abstract：
:The remnant kidney (RK) exhibits an enhanced fractional excretion of phosphate (FEPi) even in the absence of parathyroid hormone (PTH). Thus, factors other than PTH contribute to this adaptive phosphaturia. Dopamine (DA) infusion is phosphaturic, whereas stimulation of adrenoreceptors is antiphosphaturic. Therefore, the hypothesis that alterations in catecholamines by the RK may be associated with the phosphaturia exhibited by this model was tested. Male Sprague-Dawley rats were subjected to right nephrectomy and surgical ablation of the left renal poles. Four weeks later rats with a RK (N = 10) and control rats with intact kidneys (N = 9) were anesthetized and thyroparathyroidectomized (TPTX). Two hours after TPTX, urine samples were collected for measurements of urinary free DA excretion. Subsequently, 3% inulin in saline was infused for one hour and a 30 minute clearance was taken. The kidneys were then removed and frozen for determination of tissue norepinephrine (NE) and DA concentrations. Glomerular filtration rate was significantly lower in rats with a RK than in controls (0.57 +/- 0.07 vs. 0.83 +/- 0.08 ml/min/g kidney wt), whereas fractional excretion of phosphate (FEPi) was significantly higher (29.4 +/- 4.7 vs. 8.3 +/- 3.4%). Tissue NE concentration was significantly lower in the RK than in the control intact kidney (85.10 +/- 4.95 vs. 129.60 +/- 7.20 ng/g), whereas urinary DA excretion per nephron was significantly higher in the RK (0.12 +/- 0.02 vs. 0.04 +/- 0.006 pg/min).(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Isaac J,Berndt TJ,Thothathri V,Tyce GM,Knox FGdoi
10.1038/ki.1993.144subject
Has Abstractpub_date
1993-05-01 00:00:00pages
1021-6issue
5eissn
0085-2538issn
1523-1755pii
S0085-2538(15)58025-3journal_volume
43pub_type
杂志文章abstract：:31P NMR as a descriptive technique is of interest to nephrologists. Particular contributions of 31P NMR to our understanding of renal function may be enumerated.: "Free" metabolite levels are different from those classically accepted; in particular, ADP and Pi are low with implications for the control of renal metabol...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1038/ki.1986.15
更新日期：1986-01-01 00:00:00
abstract：BACKGROUND:Dialysis efficiency has a great influence on the outcome of patients. Few data are available on the removal of solutes with molecular weights higher than urea and creatinine. The aim of our study was to assess the transport and the removal of substances with molecular weights up to 15 kD and to evaluate the ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2002.00216.x
更新日期：2002-03-01 00:00:00
abstract：:Steroid Resistant Nephrotic Syndrome (SRNS) in children and young adults has differing etiologies with monogenic disease accounting for 2.9-30% in selected series. Using whole exome sequencing we sought to stratify a national population of children with SRNS into monogenic and non-monogenic forms, and further define t...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2016.10.013
更新日期：2017-04-01 00:00:00
abstract：:Early graft loss (EGL) is a feared outcome of kidney transplantation. Consequently, kidneys with an anticipated risk of EGL are declined for transplantation. In the most favorable scenario, with optimal use of available donor kidneys, the donor pool size is balanced by the risk of EGL, with a tradeoff dictated by the ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2020.01.043
更新日期：2020-06-01 00:00:00
abstract：:Recent studies including the current article by Sawinski et al. demonstrate that hepatitis C virus (HCV) infection is associated with worse outcomes in kidney transplant recipients with and without HIV infection. We comment on the significance of these findings in the context of newer options for the treatment of HCV ...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1038/ki.2015.180
更新日期：2015-08-01 00:00:00
abstract：:The intracellular distribution of carbonic anhydrase was studied in nine human donor kidneys by the histochemical method of Hansson and by an immunofluorescence technique using antisera specific against the cytoplasmic isoenzymes HCA B and HCA C. Only HCA C was found in the renal tubules. Convoluted proximal tubules s...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1984.106
更新日期：1984-06-01 00:00:00
abstract：:Hemodialysis has a profound effect on fluid balance. Since fluid is initially withdrawn from the intravascular compartment, blood volume will decrease rapidly. A fluid shift (refill) from the overhydrated interstitium towards the intravascular compartment counteracts hypovolemia. Underestimation of postdialytic dry we...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1993.321
更新日期：1993-10-01 00:00:00
abstract：:We used the perfused hemicorpus preparation to measure individual rates of protein synthesis and degradation. Using fed animals, perfused either with or without insulin, muscle protein synthesis and hemicorpus protein degradation rates were similar, but myofibrillar protein degradation was clearly increased in the ure...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1986.119
更新日期：1986-06-01 00:00:00
abstract：:Tubular atrophy and interstitial fibrosis, important in progression of renal diseases, including diabetic (D) and cyclosporine-induced (CSA) nephropathy, have been considered irreversible. Normoglycemia for 10 years following pancreas transplantation alone (PTA) reversed D glomerulopathy lesions. This study quantified...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/sj.ki.5000153
更新日期：2006-03-01 00:00:00
abstract：:McAdoo et al. propose that patients with both circulating antiglomerular basement membrane antibody and antineutrophil cytoplasm antibody demonstrate a phenotype that lies between that of single-positive antiglomerular basement membrane disease and antineutrophil cytoplasm antibody-associated vasculitis. Specifically,...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1016/j.kint.2017.04.024
更新日期：2017-09-01 00:00:00
abstract：:Many approaches to blocking profibrotic TGFbeta overexpression are under way. Therapeutic targeting of TGFbeta-Smad signaling holds promise for slowing or halting progressive renal disease. In this issue, Fukasawa et al., using the unilateral ureteral obstruction model, provide a new target for therapeutic interventio...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1038/sj.ki.5000260
更新日期：2006-05-01 00:00:00
abstract：:Fibrates, the PPAR alpha ligand-like compounds increase the expression of proximal tubule liver fatty acid binding protein (L-FABP) and significantly decrease cisplatin-induced acute kidney injury. To study whether the bezafibrate-mediated upregulation of renal L-FABP was involved in this cytoprotective effect we trea...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2008.106
更新日期：2008-06-01 00:00:00
abstract：:Dual renin-angiotensin aldosterone (RAAS) blockade is associated with higher risk of hyperkalemia and has not been shown, in any outcome trial of validated renal end points, that is, doubling of creatinine, time to dialysis, or death, to be superior over other approaches. It shows promise in advanced proteinuric nephr...
journal_title：Kidney international
pub_type： 评论,杂志文章,评审
doi：10.1038/ki.2010.226
更新日期：2010-09-01 00:00:00
abstract：:A morphometric study was undertaken to quantitate the morphologic changes induced by ADH availability in the rat kidney. Homozygous Brattleboro rats with hereditary diabetes insipidus (DI) (no ADH) were compared to heterozygous Brattleboro control rats (HZ) and to DI rats after 5 to 6 weeks of continuous ADH infusion ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1985.152
更新日期：1985-09-01 00:00:00
abstract：:Podocyte injury and loss contribute to the progression of glomerular diseases, including diabetic kidney disease. We previously found that the glomerular expression of Sirtuin-1 (SIRT1) is reduced in human diabetic glomeruli and that the podocyte-specific loss of SIRT1 aggravated albuminuria and worsened kidney diseas...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2017.12.008
更新日期：2018-06-01 00:00:00
abstract：:Chronic kidney disease (CKD) is usually associated with interstitial leukocytic cell infiltrates, which may contribute to disease progression by production of proinflammatory, proapoptotic, and profibrotic mediators. Recruiting leukocytes into the kidney involves local expression of chemotactic cytokines, that is, che...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1038/sj.ki.5000053
更新日期：2006-01-01 00:00:00
abstract：:Lithium therapy frequently induces nephrogenic diabetes insipidus; amiloride appears to prevent its occurrence in some clinical cases. Amiloride blocks the epithelial sodium channel (ENaC) located in the apical membrane of principal cells; hence one possibility is that ENaC is the main entry site for lithium and the b...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2009.91
更新日期：2009-07-01 00:00:00
abstract：:Metabolic changes due to chronic renal failure (CRF) were studied in isolated liver cells. In 14 CRF and 14 sham-operated rats, liver cells were isolated by the Berry and Friend method and incubated with various substrates in order to study gluconeogenesis, ureagenesis, ketogenesis, oxygen consumption as well as cytos...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1995.215
更新日期：1995-06-01 00:00:00
abstract：:Spleen tyrosine kinase (SYK) is an important component of the intracellular signaling pathway for various immunoreceptors. Inhibition of SYK has shown promise in preclinical models of autoimmune and glomerular disease. However, the description of SYK expression in human renal tissue, which would be desirable ahead of ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2015.29
更新日期：2015-07-01 00:00:00
abstract：:Reducing proteinuria and blood pressure in chronic kidney disease (CKD) decreases rate of progression. Inhibition of the renin-angiotensin system by angiotensin-converting enzyme inhibitors and/or angiotensin receptor blockers is beneficial in reducing proteinuria but incomplete in suppressing aldosterone production a...
journal_title：Kidney international
pub_type： 评论,杂志文章,评审
doi：10.1038/sj.ki.5002007
更新日期：2006-12-01 00:00:00
abstract：:Adynamic bone disease (ABD) is increasingly recognized, especially in dialysis patients treated with oral calcium carbonate, vitamin D supplements, or supraphysiological dialysate calcium. We undertook this study to assess the effect of lowering dialysate calcium on episodes of hypercalcemia, serum parathyroid hormone...
journal_title：Kidney international
pub_type： 杂志文章,随机对照试验
doi：10.1038/sj.ki.5001666
更新日期：2006-09-01 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
pub_type： 杂志文章
doi：10.1038/ki.1991.228
更新日期：1991-09-01 00:00:00
abstract：:In studying the metabolic effects of diet potassium (K+) variation in normal humans, we noted that varying diet K+ within its normal range influenced inorganic phosphorus (Pi) homeostasis and serum calcitriol (1,25-dihydroxyvitamin D) levels. In six men who ingested a constant whole-foods diet containing (per 70 kg bo...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1990.120
更新日期：1990-05-01 00:00:00
abstract：:High glucose evokes a variety of signals in mesangial cells that alter cellular functions responsible for the development of diabetic glomerulopathy. The hypoxia-inducible factor-1alpha (HIF-1alpha) regulates cellular homeostasis under hypoxic conditions, but it also has pleiotropic effects in response to cellular str...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2010.99
更新日期：2010-07-01 00:00:00
abstract：:The parathyroid hormone response to hypocalcemia was investigated in hemodialysis patients with osteomalacia and compared to those with osteitis fibrosa. Hypocalcemia was induced during hemodialysis by employing a dialysate devoid of calcium. Patients with osteomalacia had a blunted maximum amino terminal parathyroid ...
journal_title：Kidney international
pub_type： 临床试验,杂志文章
doi：10.1038/ki.1983.168
更新日期：1983-09-01 00:00:00
abstract：:To assess in vitro erythropoietic cultures as a tool to discriminate between patients whose anemia improves with and those whose anemia fails to improve with androgens, bone marrows of 24 anemic patients receiving maintenance hemodialysis in hormone-depleted plasma clots were cultured. While erythroid colony prolifera...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1982.186
更新日期：1982-10-01 00:00:00
abstract：:X-ray crystal interferometer-based X-ray phase-contrast microtomography (phase-contrast microtomography) is able to image microstructures within soft tissue without the use of a contrast agent. Here we determined the feasibility of using this technique in the non-destructive inspection of formalin-fixed kidney tissue ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2009.42
更新日期：2009-05-01 00:00:00
abstract：:Glomerular deposition of hepatitis B virus (HBV) antigens are observed in chronic HBsAg carriers with different glomerulonephritides yet the etiologic role of HBV remains uncertain. We examined the paraffin section of kidney biopsies from 40 chronic HBsAg carriers with membranous nephropathy (MGN), mesangiocapillary g...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1996.519
更新日期：1996-12-01 00:00:00
abstract：:The present experiments were performed to examine the effect of variation in protein intake on renal function and morphology in the non-clipped kidneys of Goldblatt hypertensive rats. After renal artery clipping, rats were put on diets containing 5 (LP), 17.5 (NP), or 51% (HP) protein. After 4 to 5 weeks, all rats had...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1986.30
更新日期：1986-02-01 00:00:00
abstract：:Recent studies of timing of dialysis initiation have challenged the recent trend to earlier initiation of therapy. The observed outcomes though are a consequence of the balance between the risks of advanced uremia versus the inherent dangers relating to dialysis therapy itself. Many of these risks are inherent in how ...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1038/ki.2012.133
更新日期：2012-08-01 00:00:00
