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https://www.readbyqxmd.com/read/28331059/adaptive-changes-in-gfr-tubular-morphology-and-transport-in-subtotal-nephrectomized-kidneys-modeling-and-analysis
#1
Anita T Layton, Aurélie Edwards, Volker Vallon
Removal of renal mass stimulates anatomical and functional adaptations in the surviving nephrons, including elevation in single-nephron glomerular filtration rate (SNGFR) and tubular hypertrophy. A goal of this study is to assess the extent to which the concomitant increases in filtered load and tubular transport capacity preserve homeostasis of water and salt. To accomplish that goal, we developed computational models to simulate solute transport and metabolism along nephron populations in a uninephrectomized (UNX) rat and a 5/6-nephrectomized (5/6-NX) rat...
March 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28329858/cystatin-c-and-the-risk-of-frailty-and-mortality-in-older-men
#2
Allyson Hart, Terri L Blackwell, Misti L Paudel, Brent C Taylor, Eric S Orwoll, Peggy M Cawthon, Kristine E Ensrud
Background: This study examines the association between cystatin C (cysC) levels and risks of progression of frailty status or death in older men. Methods: Prospective study of 2,613 men without overt frailty aged 67 years and older enrolled in the MrOS ancillary sleep study. Baseline measurements included serum cysC, serum creatinine, and frailty status. Repeat frailty status, performed an average of 3.4 years later, was assessed as an ordinal outcome of robust, intermediate stage (prefrail), frail or dead...
November 9, 2016: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28306749/cigarette-smoking-and-cardio-renal-events-in-patients-with-atherosclerotic-renal-artery-stenosis
#3
Christopher A Drummond, Pamela S Brewster, Wencan He, Kaili Ren, Yanmei Xie, Katherine R Tuttle, Steven T Haller, Kenneth Jamerson, Lance D Dworkin, Donald E Cutlip, Timothy P Murphy, Ralph B D'Agostino, William L Henrich, Jiang Tian, Joseph I Shapiro, Christopher J Cooper
Cigarette smoking causes cardiovascular disease and is associated with poor kidney function in individuals with diabetes mellitus and primary kidney diseases. However, the association of smoking on patients with atherosclerotic renal artery stenosis has not been studied. The current study utilized data from the Cardiovascular Outcomes in Renal Atherosclerotic Lesions (CORAL, NCT00081731) clinical trial to evaluate the effects of smoking on the risk of cardio-renal events and kidney function in this population...
2017: PloS One
https://www.readbyqxmd.com/read/28296030/comprehensive-assessment-of-renal-tumor-complexity-in-a-large-percutaneous-cryoablation-cohort
#4
Bimal Bhindi, R Houston Thompson, Ross J Mason, Mustafa M Haddad, Jennifer R Geske, A Nicholas Kurup, James D Hannon, Stephen A Boorjian, Bradley C Leibovich, Thomas D Atwell, Grant D Schmit
OBJECTIVE: To evaluate the association between renal tumor complexity and outcomes in a large cohort of patients undergoing percutaneous cryoablation (PCA). PATIENTS AND METHODS: Patients with renal tumors treated with PCA were identified using our prospectively-maintained ablation registry (2003-2015). Salvage procedures and inherited tumor syndromes were excluded. The associations between R.E.N.A.L. Nephrometry Score (NS) and risk of complications, renal function impairment, local failure, and cancer-specific mortality (CSM) were evaluated using univariate and multivariable logistic, linear and Cox regression models...
March 13, 2017: BJU International
https://www.readbyqxmd.com/read/28287463/stirring-the-pot-can-dietary-modification-alleviate-the-burden-of-ckd
#5
REVIEW
Matthew Snelson, Rachel E Clarke, Melinda T Coughlan
Diet is one of the largest modifiable risk factors for chronic kidney disease (CKD)-related death and disability. CKD is largely a progressive disease; however, it is increasingly appreciated that hallmarks of chronic kidney disease such as albuminuria can regress over time. The factors driving albuminuria resolution remain elusive. Since albuminuria is a strong risk factor for GFR loss, modifiable lifestyle factors that lead to an improvement in albuminuria would likely reduce the burden of CKD in high-risk individuals, such as patients with diabetes...
March 11, 2017: Nutrients
https://www.readbyqxmd.com/read/28285355/technetium-99m-labeled-sulfadiazine-a-targeting-radiopharmaceutical-for-scintigraphic-imaging-of-infectious-foci-due-to-escherichia-coli-in-mouse-and-rabbit-models
#6
Muhammad Tauqeer Ahmed, Syed Ali Raza Naqvi, Rashid Rasheed, Ameer Fawad Zahoor, Muhammad Usman, Zaib Hussain
Bacterial infection is one of the vital reasons of morbidity and mortality, especially in developing countries. It appears silently without bothering the geological borders and imposes a grave threat to humanity. Nuclear medicine technique has an important role in helping early diagnosis of deep-seated infections. The aim of this study was to develop a new radiopharmaceutical (99m)Tc-labeling sulfadiazine as an infection imaging agent. Radiolabeling of sulfadiazine with technetium-99m ((99m)Tc) was carried out using stannous tartrate as a reducing agent in the presence of gentistic acid at pH = 5...
March 11, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28276725/accuracy-diagrams-a-novel-way-to-illustrate-uncertainty-of-estimated-gfr
#7
Jonas Björk, Anders Grubb, Gunnar Sterner, Sten-Erik Bäck, Ulf Nyman
Most studies that validate GFR equations present accuracy results stratified by measured GFR (mGFR; diagnostic correctness) or by estimated GFR (eGFR; diagnostic predictiveness) only, without a clear distinction in interpretation. The accuracy of a GFR equation is normally reported in percent (e.g. P30), but is often misinterpreted when stratified by eGFR. The aim of the study was to develop new accuracy measures and diagrams that allow straightforward interpretations and illustrations of the uncertainty in eGFR in clinical practice...
May 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28256495/the-evaluation-of-renal-parenchymal-scarring-using-static-renal-scintigraphy-after-percutaneous-nephrolithotomy-operations
#8
S Yalcinkaya, N Ates, M Yuksel, E Islamoglu, H Tokgoz, E U Ates, A Yildız, S Yilmaz, M Savas
OBJECTIVE: To analyze whether operative techniques and other variables related to patient and renal stone characteristics affect potential renal parenchymal damage. MATERIALS AND METHODS: The study population comprised 64 patients who underwent percutaneous nephrolithotomy operations (PCNL). Data of the operated renal units, renal stone burden, route and number of entries, dilation techniques, duration of surgery, preoperative and postoperative glomerular filtration rate (GFR) and relative dimercaptosuccinic acid (DMSA) uptakes, as well as the changes in hemoglobin values, were recorded and analyzed for all patients...
March 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28219585/urinary-type-iii-procollagen-is-associated-with-chronic-allograft-dysfunction-and-predicts-graft-survival
#9
R Yılmaz, T Yıldırım, D E Baydar, B Altun, Y Erdem
BACKGROUND: Chronic allograft dysfunction (CAD) is the most important clinical problem in solid organ transplantation. Interstitial fibrosis and tubular atrophy contribute to long-term renal allograft failure. Urinary type III procollagen N-terminal propeptide (PIIINP), has been shown to associate fibrotic processes. METHODS: One hundred sixty patients with CAD who underwent allograft biopsies were evaluated, and 52 patients with chronic or sclerosing allograft nephropathy were enrolled in the study...
March 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28197727/perioperative-morbidity-oncological-outcomes-and-predictors-of-pt3a-upstaging-for-patients-undergoing-partial-nephrectomy-for-ct1-tumors
#10
Pascal Mouracade, Onder Kara, Julien Dagenais, M J Maurice, R J Nelson, Ercan Malkoc, J H Kaouk
OBJECTIVES: To evaluate perioperative morbidity, oncological outcome and predictors of pT3a upstaging after partial nephrectomy (PN). MATERIALS AND METHODS: Retrospective study of 1042 patients who underwent PN for cT1N0M0 renal cell carcinoma between 2007 and 2015. A total of 113 cT1 patients were upstaged to pT3a, while 929 were staged as pT1. Demographic, perioperative and pathological variables were reviewed. We compared the clinico-pathological characteristics, perioperative morbidity and oncological outcomes between pT3a and pT1 groups...
February 14, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28166298/estimation-of-chronic-kidney-disease-incidence-from-prevalence-and-mortality-data-in-american-indians-with-type-2-diabetes
#11
Pavithra Vijayakumar, Annika Hoyer, Robert G Nelson, Ralph Brinks, Meda E Pavkov
The objective was to estimate chronic kidney disease (CKD) incidence rates from prevalence and mortality data, and compare the estimates with observed (true) incidence rates in a well-characterized population with diabetes. Pima Indians aged 20 years and older with type 2 diabetes were followed from 1982 through 2007. CKD was defined by estimated GFR (eGFR) <60 ml/min/1.72 m2 or albumin-to-creatinine ratio (ACR) ≥30 mg/g. True CKD incidence and mortality rates were computed for the whole study period, and prevalence for the intervals 1982-1994 and 1995-2007...
2017: PloS One
https://www.readbyqxmd.com/read/28133528/effects-of-ellagic-acid-pretreatment-on-renal-functions-disturbances-induced-by-global-cerebral-ischemic-reperfusion-in-rat
#12
Khojasteh Hoseiny Nejad, Mohammad Kazem Gharib-Naseri, Alireza Sarkaki, Mahin Dianat, Mohammad Badavi, Yaghoub Farbood
OBJECTIVES: Global cerebral ischemia-reperfusion (GCIR) causes disturbances in brain functions as well as other organs such as kidney. Our aim was to evaluate the protective effects of ellagic acid (EA) on certain renal disfunction after GCIR. MATERIALS AND METHODS: Adult male Wistar rats (n=32, 250-300 g) were used. GCIR was induced by bilateral vertebral and common carotid arteries occlusion (4-VO). Animal groups were: 1) received DMSO/saline (10%) as solvent of EA, 2) solvent + GCIR, 3) EA + GCIR, and 4) EA...
January 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28116101/prevalence-of-anemia-in-renal-insufficiency-among-hiv-infected-patients-initiating-art-at-a-hospital-in-northeast-ethiopia
#13
Temesgen Fiseha, Zemenu Tamir, Abdurahaman Seid, Wondmagegn Demsiss
BACKGROUND: Anemia is a strong predictor of mortality and poor quality of life among persons with either renal impairment or HIV infection. In this study, we investigated the prevalence of anemia and its association with renal insufficiency among HIV infected patients initiating ART at a hospital in Northeast Ethiopia. METHODS: In this retrospective cohort study, records of 373 patients on ART were selected in Dessie Referral hospital, South Wollo, Northeast Ethiopia from September 2010 to August 2013...
2017: BMC Hematology
https://www.readbyqxmd.com/read/28114169/outcomes-of-pregnancies-after-kidney-transplantation-lessons-learned-from-ckd-a-comparison-of-transplanted-nontransplanted-chronic-kidney-disease-patients-and-low-risk-pregnancies-a-multicenter-nationwide-analysis
#14
Giorgina Barbara Piccoli, Gianfranca Cabiddu, Rossella Attini, Martina Gerbino, Paola Todeschini, Maria Luisa Perrino, Ana Maria Manzione, Gian Benedetto Piredda, Elisa Gnappi, Flavia Caputo, Giuseppe Montagnino, Vincenzo Bellizzi, Pierluigi Di Loreto, Francesca Martino, Domenico Montanaro, Michele Rossini, Santina Castellino, Marilisa Biolcati, Federica Fassio, Valentina Loi, Silvia Parisi, Elisabetta Versino, Antonello Pani, Tullia Todros
BACKGROUND: Kidney transplantation (KT) may restore fertility in CKD. The reasons why materno-foetal outcomes are still inferior to the overall population are only partially known. Comparison with the CKD population may offer some useful insights for management and counselling.Aim of this study was to analyse the outcomes of pregnancy after KT, compared with a large population of non-transplanted CKD patients and with low-risk control pregnancies, observed in Italy the new millennium...
January 21, 2017: Transplantation
https://www.readbyqxmd.com/read/28096442/kinetic-modeling-of-incremental-ambulatory-peritoneal-dialysis-exchanges
#15
Steven Guest, John K Leypoldt, Michelle E Cassin, Martin J Schreiber
♦ Background: Incremental peritoneal dialysis (PD), the gradual introduction of dialysate exchanges at less than full-dose therapy, has been infrequently described in clinical reports. One concern with less than full-dose dialysis is whether urea clearance targets are achievable with an incremental regimen. In this report, we used a large database of PD patients, across all membrane transport types, and performed urea kinetic modeling determinations of possible incremental regimens for an individual membrane type...
January 17, 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/28092350/long-term-renal-survival-in-patients-undergoing-t-cell-depleted-versus-conventional-hematopoietic-stem-cell-transplants
#16
I G Glezerman, S Devlin, M Maloy, M Bui, E A Jaimes, S A Giralt, A A Jakubowski
Calcineurin inhibitor (CNI)-sparing T-cell depleted (TCD) hematopoietic stem cell transplants (HSCTs) are presumed to be less nephrotoxic than conventional HSCTs. We evaluated incidence and risk factors for kidney failure and chronic kidney disease (CKD) in 231 TCD and 212 conventional HSCT recipients. Kidney failure required a median glomerular filtration rate (GFR) <60 ml/min/1.73 m(2) for ⩾100 days anytime after 180-days post-HSCT. Two-year cumulative incidence (CI) of kidney failure was 42% in the conventional versus 31% in the TCD group (P=0...
January 16, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28073780/chronic-kidney-disease-and-obesity-bias-surrogate-estimates-of-insulin-sensitivity-compared-with-the-hyperinsulinemic-euglycemic-clamp
#17
Iram Ahmad, Leila R Zelnick, Nicole R Robinson, Adriana M Hung, Bryan Kestenbaum, Kristina M Utzschneider, Steven E Kahn, Ian H de Boer
Insulin sensitivity can be measured by procedures such as the hyperinsulinemic euglycemic clamp or by using surrogate indices. Chronic kidney disease (CKD) and obesity may differentially affect these measurements because of changes in insulin kinetics and organ-specific effects on insulin sensitivity. In a cross-sectional study of 59 subjects with nondiabetic CKD [estimated glomerular filtration rate: (GFR) <60 ml·min(-1)·1.73 m(2)] and 39 matched healthy controls, we quantified insulin sensitivity by clamp (SIclamp), oral glucose tolerance test, and fasting glucose and insulin...
March 1, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28070716/pharmacokinetics-and-saturable-absorption-of-gabapentin-in-nursing-home-elderly-patients
#18
Ghada F Ahmed, Sai Praneeth R Bathena, Richard C Brundage, Ilo E Leppik, Jeannine M Conway, Janice B Schwartz, Angela K Birnbaum
Pharmacokinetic data of gabapentin (GBP) in community-dwelling elderly patients show a significant effect of advanced age on GBP pharmacokinetics due to altered renal function. However, there are no data in elderly nursing home (NH) patients to evaluate gabapentin absorption and elimination. Our objective was to characterize the pharmacokinetics of GBP in elderly nursing home patients maintained on GBP therapy. This was a prospective pharmacokinetic study in elderly nursing home patients (≥60 years) receiving GBP for the management of chronic pain or epilepsy from seven nursing homes...
March 2017: AAPS Journal
https://www.readbyqxmd.com/read/28060893/positioning-of-tacrolimus-for-the-treatment-of-diabetic-nephropathy-based-on-computational-network-analysis
#19
Constantin Aschauer, Paul Perco, Andreas Heinzel, Judith Sunzenauer, Rainer Oberbauer
OBJECTIVE: To evaluate tacrolimus as therapeutic option for diabetic nephropathy (DN) based on molecular profile and network-based molecular model comparisons. MATERIALS AND METHODS: We generated molecular models representing pathophysiological mechanisms of DN and tacrolimus mechanism of action (MoA) based on literature derived data and transcriptomics datasets. Shared enriched molecular pathways were identified based on both model datasets. A newly generated transcriptomics dataset studying the effect of tacrolimus on mesangial cells in vitro was added to identify mechanisms in DN pathophysiology...
2017: PloS One
https://www.readbyqxmd.com/read/28049448/international-collaboration-for-the-epidemiology-of-egfr-in-low-and-middle-income-populations-rationale-and-core-protocol-for-the-disadvantaged-populations-egfr-epidemiology-study-degree
#20
Ben Caplin, Kristina Jakobsson, Jason Glaser, Dorothea Nitsch, Vivekanand Jha, Ajay Singh, Ricardo Correa-Rotter, Neil Pearce
BACKGROUND: There is an increasing recognition of epidemics of primarily tubular-interstitial chronic kidney disease (CKD) clustering in agricultural communities in low- and middle-income countries (LMICs). Although it is currently unclear whether there is a unified underlying aetiology, these conditions have been collectively termed CKD of undetermined cause (CKDu). CKDu is estimated to have led to the premature deaths of tens to hundreds of thousands of young men and women over the last 2 decades...
January 3, 2017: BMC Nephrology
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