Abstract：
:Females across their lifespan and certain male populations are susceptible to urinary tract infections (UTI). The influence of female vs. male sex on UTI is incompletely understood, in part because preclinical modeling has been performed almost exclusively in female mice. Here, we employed established and new mouse models of UTI with uropathogenic Escherichia coli (UPEC) to investigate androgen influence on UTI pathogenesis. Susceptibility to UPEC UTI in both male and female hosts was potentiated with 5α-dihydrotestosterone, while males with androgen receptor deficiency and androgenized females treated with the androgen receptor antagonist enzalutamide were protected from severe pyelonephritis. In androgenized females and in males, UPEC formed dense intratubular, biofilm-like communities, some of which were sheltered from infiltrating leukocytes by the tubular epithelium and by peritubular fibrosis. Abscesses were nucleated by small intratubular collections of UPEC first visualized at five days postinfection and briskly expanded over the subsequent 24 hours. Male mice deficient in Toll-like receptor 4, which fail to contain UPEC within abscesses, were susceptible to lethal dissemination. Thus, androgen receptor activation imparts susceptibility to severe upper-tract UTI in both female and male murine hosts. Visualization of intratubular UPEC communities illuminates early renal abscess pathogenesis and the role of abscess formation in preventing dissemination of infection. Additionally, our study suggests that androgen modulation may represent a novel therapeutic route to combat recalcitrant or recurrent UTI in a range of patient populations.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Olson PD,McLellan LK,Hreha TN,Liu A,Briden KE,Hruska KA,Hunstad DAdoi
10.1016/j.kint.2018.04.023subject
Has Abstractpub_date
2018-09-01 00:00:00pages
502-513issue
3eissn
0085-2538issn
1523-1755pii
S0085-2538(18)30351-Xjournal_volume
94pub_type
杂志文章abstract：BACKGROUND:Metabolic acidosis caused by increased rates of fixed acid production is associated with increased urinary excretion of Ca and negative Ca balances. Metabolic acidosis caused by a reduced capacity of the kidneys to excrete acid contributes to the development of bone disease in the course of chronic renal fai...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2000.00282.x
更新日期：2000-09-01 00:00:00
abstract：:Residual renal function is a major survival determinant for peritoneal dialysis patients. Hypovolemia can cause acute kidney injury and loss of residual renal function, and it has been suggested that patients receiving peritoneal dialysis should preferably be maintained hypervolemic to preserve residual renal function...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2013.273
更新日期：2014-01-01 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：:Unilateral ureteral obstruction results in marked changes in renal function throughout the nephron, including impaired acid and potassium secretion and salt wastage. The nephron site believed responsible for the acidification defect is the collecting duct. It has been presumed, although not demonstrated, that the cell...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1990.11
更新日期：1990-01-01 00:00:00
abstract：BACKGROUND:C-peptide has been reported to have biological effects on renal function early in the course of diabetes. This investigation was initiated to elucidate and amplify these findings with respect to protein leakage, hyperfiltration and renal functional reserve in diabetic rats. METHODS:Acute effects of 140 minu...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1998.00074.x
更新日期：1998-09-01 00:00:00
abstract：:It is unknown whether mild chronic kidney disease (CKD) is associated with adverse cardiovascular (CV) prognosis after accounting for coronary artery disease (CAD). Here we evaluated the interplay between CKD and CAD in predicting CV death or myocardial infarction (MI) and all-cause death. We included 1541 consecutive...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2014.426
更新日期：2015-07-01 00:00:00
abstract：:Most epidemiologic data, thus far, have focused on short-term outcomes of acute kidney injury (AKI). Lo et al. correlate AKI with long-term outcomes. The concept of 'uremic memory' sheds light on the importance of AKI and its permanent imprint. The focus of research should be on prevention of an episode of AKI, when p...
journal_title：Kidney international
pub_type： 评论,杂志文章
doi：10.1038/ki.2009.314
更新日期：2009-10-01 00:00:00
abstract：:The transition between the glomerulus and the proximal tubule was studied by light and electron microscopy in perfusion-fixed rabbit kidneys. In most nephrons a transitional segment of tubule occurred between the Bowman's capsule and the proximal tubule proper. This initial part of the tubule was lined by flattened ce...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1975.22
更新日期：1975-03-01 00:00:00
abstract：:The proximal tubule uses a complex process of apical acid secretion and basolateral bicarbonate absorption to regulate both luminal acidification and fluid absorption. One of the primary regulators of apical acid secretion is the luminal sodium-hydrogen exchanger expressed along the apical membrane of the proximal tub...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2013.137
更新日期：2013-08-01 00:00:00
abstract：BACKGROUND:Altered mineral metabolism contributes to bone disease, cardiovascular disease, and other clinical problems in patients with end-stage renal disease. METHODS:This study describes the recent status, significant predictors, and potential consequences of abnormal mineral metabolism in representative groups of ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1111/j.1523-1755.2005.00185.x
更新日期：2005-03-01 00:00:00
abstract：:Renal fibrosis is a common pathway leading to the progression of chronic kidney disease, and bone marrow-derived fibroblasts contribute significantly to the development of renal fibrosis. However, the signaling mechanisms underlying the activation of these fibroblasts are not completely understood. Here, we examined t...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2017.04.021
更新日期：2017-12-01 00:00:00
abstract：BACKGROUND:Torsemide has predictable absorption compared to furosemide. Thereby, torsemide results in more constant exposure to active drug. Our hypothesis was that this pharmacokinetic difference between these commonly used loop diuretics may translate into disparate antihypertensive responses in patients with chronic...
journal_title：Kidney international
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1046/j.1523-1755.2003.00124.x
更新日期：2003-08-01 00:00:00
abstract：BACKGROUND:The tissue renin-angiotensin system (RAS) may modulate the structural and functional changes that occur in the diabetic kidney. METHODS:Hypertensive transgenic (mREN-2)27 rat (TGR) that exhibit increased tissue renin expression were administered streptozotocin (STZ, diabetic) or citrate buffer (non-diabetic...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1998.00019.x
更新日期：1998-08-01 00:00:00
abstract：BACKGROUND:Crystals of calcium oxalate monohydrate (COM) and excess oxalate ions (OX) stimulate an array of responses inducing localized injury and inflammation in the kidneys. These inflammatory responses are key regulators of development of nephrolithiasis. We propose that monocyte chemoattractant protein-1 (MCP-1), ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2002.00106.x
更新日期：2002-01-01 00:00:00
abstract：:Measures related to red cell oxygen transport were evaluated in 17 hemodialysis patients receiving androgen therapy, 15 untreated hemodialysis patients and 15 normal subjects. Hemoglobin levels were higher in androgen-treated patients than in the untreated population and were directly related to the reticulocyte index...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1987.15
更新日期：1987-01-01 00:00:00
abstract：:Precise immunofluorescence criteria for C3 glomerulopathy remain to be defined. Here we tested hierarchical immunofluorescence criteria with varying stringency for C3 glomerulopathy in a cohort with dense deposit disease as the gold standard and then applied these criteria to analyze the incidence of C3 glomerulopathy...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.2013.340
更新日期：2014-02-01 00:00:00
abstract：:Renal stone disease, which affects 12% of males and 5% of females by the seventh decade, occurs as an inherited disorder in 45% of patients and is most commonly associated with hypercalciuria. The biochemical basis for hereditary nephrolithiasis and hypercalciuria is unknown, and this has therefore been investigated b...
journal_title：Kidney international
pub_type： 杂志文章,评审
doi：10.1046/j.1523-1755.2000.00916.x
更新日期：2000-03-01 00:00:00
abstract：BACKGROUND:Atherosclerotic vascular disease is the leading cause of death in patients with diabetes mellitus and end-stage renal disease. Advanced glycation end products (AGEs) are strongly suggested to be involved in the pathogenesis of atherosclerosis in these patients who also frequently experience infectious compli...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1998.00157.x
更新日期：1998-11-01 00:00:00
abstract：BACKGROUND:Nephrotic syndrome is associated with abnormal lipoprotein metabolism and increased risk of coronary heart disease. Endothelial dysfunction, an early phase of atherogenesis that manifests as impaired flow-mediated dilation (FMD) of the peripheral circulation, may link these associations. METHODS:We examined...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2001.00785.x
更新日期：2001-07-01 00:00:00
abstract：:Cardiac surgery associated-acute kidney injury (CS-AKI) occurs in 30-50% of patients undergoing surgery for congenital heart disease. Here we determine if CS-AKI is associated with chronic kidney disease (CKD) in patients with congenital heart disease. Using Danish regional population-based registries, our cohort stud...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2017.02.021
更新日期：2017-09-01 00:00:00
abstract：:Cells from RCCT-28A cell line, which exhibited the highest peanut-lectin binding capacity [RCCT-28A(P+)] were separated and cultured attempting to obtain a population of HCO3- secreting cells. The mechanisms of apical solution acid or base extrusion were studied in confluent monolayers. In RCCT-28A (P+) cells net H+ f...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1993.30
更新日期：1993-01-01 00:00:00
abstract：:The microvillus brush border on the renal proximal tubule epithelium allows the controlled reabsorption of solutes that are filtered through the glomerulus and thus participates in general body homeostasis. Here, using the lipid 5-phosphatase Ship2 global knockout mice, proximal tubule-specific Ship2 knockout mice, an...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2017.01.008
更新日期：2017-07-01 00:00:00
abstract：BACKGROUND:The amount of oxalate excreted in urine has a significant impact on calcium oxalate supersaturation and stone formation. Dietary oxalate is believed to make only a minor (10 to 20%) contribution to the amount of oxalate excreted in urine, but the validity of the experimental observations that support this co...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.2001.00488.x
更新日期：2001-01-01 00:00:00
abstract：BACKGROUND:Pre-eclampsia is characterized by hypertension, proteinuria and edema. Simultaneous studies of kidney function and structure have not been reported. We wished to explore the degree and nature of glomerular dysfunction in pre-eclampsia. METHODS:Physiologic techniques were used to estimate glomerular filtrati...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1998.00097.x
更新日期：1998-10-01 00:00:00
abstract：BACKGROUND:Hemodialysis access thrombosis is a significant cause of morbidity for hemodialysis patients and results from decreased access flow caused by venous outflow tract stenosis. Ultrasound dilution (UD) is a practical, noninvasive, and reliable indicator of access flow and is effective in predicting venous stenos...
journal_title：Kidney international
pub_type： 临床试验,杂志文章
doi：10.1046/j.1523-1755.2001.00753.x
更新日期：2001-06-01 00:00:00
abstract：BACKGROUND:Nitric oxide (NO) has been shown to be a paracrine/autocrine regulator of proximal tubular transport. In this study, we investigated the effect of NO on the paracellular permeability of opossum kidney (OK) cells, a proximal tubule cell line that possesses a leaky paracellular pathway resembling that of the i...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1046/j.1523-1755.1999.00465.x
更新日期：1999-06-01 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
pub_type： 杂志文章
doi：10.1038/ki.1992.134
更新日期：1992-04-01 00:00:00
abstract：:Bikunin is a chondroitin-sulphate containing serum protein with a Stokes-Einstein radius and a negative net charge close to those of serum albumin. The plasma half life of bikunin is about 10 minutes, and approximately half of its clearance occurs in the kidneys. The quantitative role of glomerular filtration in the r...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1038/ki.1997.147
更新日期：1997-04-01 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：:Emerging evidence of crosstalk between glomerular cells in pathological settings provides opportunities for novel therapeutic discovery. Here we investigated underlying mechanisms of early events leading to filtration barrier defects of podocyte and glomerular endothelial cell crosstalk in the mouse models of primary ...
journal_title：Kidney international
pub_type： 杂志文章
doi：10.1016/j.kint.2019.05.007
更新日期：2019-10-01 00:00:00
