Abstract：
:Diabetes mellitus is associated with natriuresis, whereas estrogen has been shown to be renoprotective in diabetic nephropathy and may independently regulate renal sodium reabsorption. The aim of this study was to determine the effects of 17-beta estradiol (E(2)) replacement to diabetic, ovariectomized (OVX) female rats on the expression of major renal sodium transporters. Female, Sprague-Dawley rats (210 g) were randomized into four groups: (1) OVX; (2) OVX+E(2); (3) diabetic+ovariectomized (D+OVX); and (4) diabetic+ovariectomized+estrogen (D+OVX+E(2)). Diabetes was induced by a single intraperitoneal injection of streptozotocin (55 mg/kg.body weight (bw)). Rats received phytoestrogen-free diet and water ad libitum for 12 weeks. E(2) attenuated hyperglycemia, hyperalbuminuria, and hyperaldosteronism in D rats, as well as the diabetes-induced changes in renal protein abundances for the bumetanide-sensitive Na-K-2Cl cotransporter (NKCC2), and the alpha- and beta-subunits of the epithelial sodium channel (ENaC), that is, E(2) decreased NKCC2, but increased alpha- and beta-ENaC abundances. In nondiabetic rats, E(2) decreased plasma K(+) and increased urine K(+)/Na(+) ratio, as well as decreased the abundance of NKCC2, beta-ENaC, and alpha-1-Na-K-adenosine triphosphate (ATP)ase in the outer medulla. Finally, the diabetic, E(2) rats had measurably lower final circulating levels of E(2) than the nondiabetic E(2) rats, despite an identical replacement protocol, suggesting a shorter biological half-life of E(2) with diabetes. Therefore, E(2) attenuated diabetes and preserved renal sodium handling and related transporter expression levels. In addition, E(2) had diabetes-independent effects on renal electrolyte handling and associated proteins.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Riazi S,Maric C,Ecelbarger CAdoi
10.1038/sj.ki.5000140subject
Has Abstractpub_date
2006-02-01 00:00:00pages
471-80issue
3eissn
0085-2538issn
1523-1755pii
S0085-2538(15)51516-0journal_volume
69pub_type
杂志文章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
pub_type： 杂志文章
doi：10.1038/ki.1992.174
更新日期：1992-05-01 00:00:00
abstract：BACKGROUND:In a prior study the 21-aminosteroid (lazaroid) U74389F provided in vivo protection from oxidative stress when used as a preventive therapy in ischemia-reperfusion injury in the kidney. As the cell membrane is the principal site for lipoperoxidation, in the current study the very lipophilic 2-methylaminochro...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1998.00072.x
更新日期：1998-09-01 00:00:00
abstract：:Transforming growth factor-β1 (TGF-β1) upregulation occurs in virtually all chronic kidney diseases and is associated with podocyte injury and proteinuria; however, the mechanisms contributing to this in vivo are ambiguous. In vitro, incubation of podocytes with TGF-β1 induced Wnt1 expression, β-catenin activation, an...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2011.255
更新日期：2011-12-01 00:00:00
abstract：BACKGROUND:Aldosterone has been suggested to play a role in the initiation and progression of diabetic nephropathy. Currently recommended treatment with angiotensin-converting enzyme (ACE) inhibitors or angiotensin II receptor blockers [renin-angiotensin system (RAS) blockade] does not suppress circulating aldosterone ...
journal_title：Kidney international
pub_type： 杂志文章,随机对照试验
doi：10.1111/j.1523-1755.2005.00756.x
更新日期：2005-12-01 00:00:00
abstract：:Plasma newly-synthesized cholesteryl ester transfer (NCET) rate and concentrations of lipids, lipoproteins and apolipoproteins A1 and B were measured in chronic renal failure patients (dialysis independent and dialysis dependent), patients with a functioning renal transplant and in healthy control subjects with compar...
journal_title：Kidney international
pub_type： 临床试验,杂志文章
doi：10.1038/ki.1994.378
更新日期：1994-10-01 00:00:00
abstract：BACKGROUND:Since the cloning of the gene for autosomal dominant polycystic kidney disease type 2 (PKD2), approximately 40 different mutations of that gene have been reported to be associated with the disease. The relationship between the PKD2 genotype and phenotype, however, remains unclear. METHODS:Detailed clinical ...
journal_title：Kidney international
pub_type： 杂志文章,多中心研究
doi：10.1046/j.1523-1755.2000.00989.x
更新日期：2000-04-01 00:00:00
abstract：:We studied renal autoregulation in pancreatectomized Munich-Wistar diabetic rats and in their sham-operated controls. In a second experiment we studied renal autoregulation in untreated and insulin treated streptozotocin diabetic Munich-Wistar rats and their nondiabetic controls. In the first experiment the diabetic r...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1990.65
更新日期：1990-03-01 00:00:00
abstract：BACKGROUND:Genetic polymorphisms of the angiotensinogen (AGT) and angiotensin-converting enzyme (ACE) genes are associated with increased risk of hypertension and left ventricular hypertrophy (LVH) in hypertensive subjects. However, the extent to which these polymorphisms are related to LVH and remodeling in dialysis p...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2003.00933.x
更新日期：2003-05-01 00:00:00
abstract：BACKGROUND:Renal disease is commonly associated with hyperlipidemia and correlates with glomerular accumulation of atherogenic lipoproteins, for example, lipoprotein(a) [Lp(a)], and mesangial hypercellularity. Specific binding of Lp(a) to mesangial cells and induction of c-myc and c-fos expression has been demonstrated...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1999.00367.x
更新日期：1999-04-01 00:00:00
abstract：:In organ donation, the donor, recipient, and transplant team must all accept potential health risks to the donor and any uncertainties. To gauge these risks, we surveyed general altruism and risk-taking behaviors in 112 potential donors, 111 potential recipients, and 51 transplant professionals. Next, participants ind...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2008.65
更新日期：2008-05-01 00:00:00
abstract：:Acute urinary obstruction causes interstitial inflammation with leukocyte accumulation and the secretion of soluble mediators. Here we show that unilateral ureteral ligation caused a progressive increase in renal F4/80(+) and F4/80(-) dendritic cells, monocytes, neutrophils and T-cells 24-72 h following obstruction. D...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2008.394
更新日期：2008-11-01 00:00:00
abstract：:A strong influence of urinary kallikrein excretion on the salt sensitivity of blood pressure has been recently suggested in normotensive patients. To evaluate the relationship between kallikrein and salt sensitivity in essential hypertension, active kallikrein excretion, plasma renin activity, atrial natriuretic pepti...
journal_title：Kidney international
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1038/ki.1994.333
更新日期：1994-09-01 00:00:00
abstract：:The initiation of peritonitis is accompanied by a massive increase in intraperitoneal levels of IL-6. The source of this cytokine and the mechanism by which its levels are increased so dramatically are unknown. We examined the mechanism of IL-6 secretion by HPMC exposed to the milicu present in the peritoneal cavity d...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1996.430
更新日期：1996-10-01 00:00:00
abstract：BACKGROUND:Dendritic cells (DCs) uniquely serve as conduits between innate and cognate arms of the immune system. The normal kidney contains an extensive population of interstitial DCs but their role in the pathogenesis of acute renal injury is not known. METHODS:Renal DCs were studied by flow cytometric analysis of c...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2005.00502.x
更新日期：2005-09-01 00:00:00
abstract：:Only some individuals carrying the high-risk APOL1 genotype go on to develop kidney disease phenotypes. In this issue of Kidney International, Nadkarni and colleagues report the associations of several biomarkers with renal outcomes in individuals with high-risk APOL1 genotypes. In the era of precision medicine, these...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1016/j.kint.2018.03.005
更新日期：2018-06-01 00:00:00
abstract：:The beta-amino acid transport capabilities of rat renal epithelium were assessed using brushborder membrane vesicles (BBMV). Taurine, a metabolically inert sulfur-containing amino acid, was studied with emphasis on the renal adaptation to dietary sulfur amino acid alteration. Three isoproteinic diets were given to Spr...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1983.198
更新日期：1983-11-01 00:00:00
abstract：:The effect of intravenous infusion of angiotensin II on microvascular parameters of the renal microcirculation of rats was studied. With the aid of fluorescence microscopy and a high sensitivity video system we observed the passage of fluorescence-labeled erythrocytes through single glomerular capillaries on the surfa...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1985.4
更新日期：1985-01-01 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：:Intravital multiphoton microscopy is a powerful tool to study kidney physiology in living animals. However, certain technical issues have curbed its usage to date, including limited depth of tissue penetration and high background emission of endogenous signals. Most previous studies have used the excitation range 700–...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2015.323
更新日期：2016-03-01 00:00:00
abstract：:Co-presentation with both ANCA and anti-GBM antibodies is thought to be relatively rare. Current studies of such 'double-positive' cases report small numbers and variable outcomes. To study this further we retrospectively analyzed clinical features and long-term outcomes of a large cohort of 568 contemporary patients ...
journal_title：Kidney international
pub_type： 杂志文章,多中心研究
doi：10.1016/j.kint.2017.03.014
更新日期：2017-09-01 00:00:00
abstract：:The aging process in humans and in the rat is associated with an impairment in renal tubular reabsorption of Pi and renal tubular adaptation to a low Pi diet. The purposes of the present study were to determine whether changes in the abundance of type II Na-Pi contransporter (NaPi-2) protein and/or mRNA play a role in...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1996.385
更新日期：1996-09-01 00:00:00
abstract：:A morphometric technique is used to estimate the absolute and relative surface areas of the brush border microvilli and cell walls bordering lateral intercellular spaces. In isolated, perfused proximal tubule from rabbit, the luminal and lateral surfaces are equal in area. For proximal convoluted tubules (PCT) each su...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1975.125
更新日期：1975-12-01 00:00:00
abstract：:While it is known that risk of death from sepsis is higher in patients with pre-existing chronic kidney disease its mechanism is unknown. To study this we established a two-stage mouse model where renal disease was first induced by folic acid injection followed by sub-lethal cecal ligation and puncture to induce sepsi...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2008.346
更新日期：2008-10-01 00:00:00
abstract：:Major temporal changes in the case mix of patients accepted for renal replacement therapy impede analysis of long-term mortality trends in end-stage renal disease patients. A record linkage study of 2 large electronic hospital inpatient data sets with national mortality data used standardization by age, sex, and comor...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1016/j.kint.2018.01.002
更新日期：2018-05-01 00:00:00
abstract：:The loss of interstitial capillaries is a feature of several experimental models of renal disease and this contributes to secondary kidney injury. Angiopoietin-1 is a secreted growth factor which binds to Tie-2 present on endothelia to enhance cell survival thereby stabilizing capillary architecture in-vitro. Previous...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2008.179
更新日期：2008-08-01 00:00:00
abstract：:Segerer et al. report the expression and localization of macrophage and dendritic-cell markers in human renal biopsies and indicate that both cell types express CD68, findings that resonate with murine studies. The functional and phenotypic distinction between macrophages and dendritic cells is discussed. ...
journal_title：Kidney international
pub_type： 评论,杂志文章,评审
doi：10.1038/ki.2008.189
更新日期：2008-07-01 00:00:00
abstract：:A second generation hepatitis C virus recombinant immunoblot assay (RIBA) was used to screen stored perioperative serum from 641 renal allograft recipients. One hundred and nine (17%) were anti-HCV positive at the time of transplant. RIBA positivity was found to be an independent predictor of post-transplant liver dis...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1994.29
更新日期：1994-01-01 00:00:00
abstract：BACKGROUND:Our preliminary studies indicate that chronic caffeine consumption has adverse renal effects in nephropathy associated with high blood pressure and insulin resistance. The purpose of this study was to investigate the effects of early (beginning at 8 weeks of age) and long-term (30 weeks) caffeine treatment (...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2002.00278.x
更新日期：2002-04-01 00:00:00
abstract：BACKGROUND:Susceptibility to skin cancer after transplantation is multifactorial, and risk factors include skin type, sun exposure, and level of immunosuppression. A major mechanism of carcinogenesis is ultraviolet radiation-induced free radical damage, and genetically determined ability to metabolize free radicals may...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2000.00392.x
更新日期：2000-11-01 00:00:00
abstract：:The monoclonal antibody (mAb) 3G5 was found, by indirect immunofluorescence, to bind to renal cortical structures in frozen sections of human, rat and calf kidneys. Double indirect immunofluorescence studies on frozen sections of rat kidneys showed that 3G5 stained only the glomerulus and the distribution of the 3G5 a...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1992.236
更新日期：1992-06-01 00:00:00
