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https://www.readbyqxmd.com/read/29207950/persistent-hematuria-in-patients-with-antineutrophil-cytoplasmic-antibody-associated-vasculitis-during-clinical-remission-chronic-glomerular-lesion-or-low-grade-active-renal-vasculitis
#1
Li Lv, Dong-Yuan Chang, Zhi-Ying Li, Min Chen, Zhao Hu, Ming-Hui Zhao
BACKGROUND: Whether persistent hematuria in patients with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) during clinical remission reflects active disease or chronic glomerular injury is uncertain. This study aimed to investigate the significance of persistent hematuria during clinical remission in a large cohort of AAV patients. METHODS: A cohort of 219 AAV patients in complete clinical remission after induction therapy at our center was retrospectively studied, and their clinical and laboratory data as well as long-term outcomes were analyzed...
December 6, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/29191357/patient-specific-evolution-of-renal-function-in-chronic-heart-failure-patients-dynamically-predicts-clinical-outcome-in-the-bio-shift-study
#2
Milos Brankovic, K Martijn Akkerhuis, Nick van Boven, Sharda Anroedh, Alina Constantinescu, Kadir Caliskan, Olivier Manintveld, Jan Hein Cornel, Sara Baart, Dimitris Rizopoulos, Hans Hillege, Eric Boersma, Victor Umans, Isabella Kardys
Renal dysfunction is an important component of chronic heart failure (CHF), but its single assessment does not sufficiently reflect clinically silent progression of CHF prior to adverse clinical outcome. Therefore, we aimed to investigate temporal evolutions of glomerular and tubular markers in 263 stable patients with CHF, and to determine if their patient-specific evolutions during this clinically silent period can dynamically predict clinical outcome. We determined the risk of clinical outcome (composite endpoint of Heart Failure hospitalization, cardiac death, Left Ventricular Assist Device placement, and heart transplantation) in relation to marker levels, slopes and areas under their trajectories...
November 28, 2017: Kidney International
https://www.readbyqxmd.com/read/29153995/longitudinal-estimated-gfr-trajectories-in-patients-with-and-without-type-2-diabetes-and-nephropathy
#3
Misghina Weldegiorgis, Dick de Zeeuw, Liang Li, Hans-Henrik Parving, Fan Fan Hou, Giuseppe Remuzzi, Tom Greene, Hiddo J L Heerspink
BACKGROUND: In clinical practice and clinical trials, changes in serum creatinine concentrations are used to evaluate changes in kidney function. It has been assumed that these changes follow a linear pattern when serum creatinine concentration is converted to estimated glomerular filtration rate (eGFR). However, the paradigm that kidney function declines linearly over time has been questioned by studies showing either linear or nonlinear patterns. To verify how this impacts on kidney end points in intervention trials, we analyzed eGFR trajectories in multiple clinical trials of patients with and without diabetes...
November 16, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29149476/clinical-parameters-before-and-after-the-transition-to-dialysis
#4
Dugan W Maddux, Len A Usvyat, Terry Ketchersid, Yue Jiao, Tommy C Blanchard, Peter Kotanko, Frank M van der Sande, Jeroen P Kooman, Franklin W Maddux
INTRODUCTION: The transition from pre-dialysis chronic kidney disease (CKD) to post-dialysis start is a critical period associated with high patient mortality and increased hospital admissions. Little is known about the trends of key clinical and laboratory parameters through this time of transition to start dialysis. METHODS: De-identified data including demographics, vital signs, lab results, and eGFR from the Fresenius Medical Care-CKD Registry were analyzed to determine trends in clinical and laboratory parameters through the time of transition from 12 months pre-dialysis start to 12 months post-dialysis start...
November 17, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/29146600/n-glycan-profile-and-kidney-disease-in-type-1-diabetes
#5
Mairead L Bermingham, Marco Colombo, Stuart J McGurnaghan, Luke A K Blackbourn, Frano Vučković, Maja Pučić Baković, Irena Trbojević-Akmačić, Gordan Lauc, Felix Agakov, Anna S Agakova, Caroline Hayward, Lucija Klarić, Colin N A Palmer, John R Petrie, John Chalmers, Andrew Collier, Fiona Green, Robert S Lindsay, Sandra Macrury, John A McKnight, Alan W Patrick, Sandeep Thekkepat, Olga Gornik, Paul M McKeigue, Helen M Colhoun
OBJECTIVE: Poorer glycemic control in type 1 diabetes may alter N-glycosylation patterns on circulating glycoproteins, and these alterations may be linked with diabetic kidney disease (DKD). We investigated associations between N-glycans and glycemic control and renal function in type 1 diabetes. RESEARCH DESIGN AND METHODS: Using serum samples from 818 adults who were considered to have extreme annual loss in estimated glomerular filtration rate (eGFR; i.e., slope) based on retrospective clinical records, from among 6,127 adults in the Scottish Diabetes Research Network Type 1 Bioresource Study, we measured total and IgG-specific N-glycan profiles...
November 16, 2017: Diabetes Care
https://www.readbyqxmd.com/read/29142972/a-drug-development-tool-for-trial-enrichment-in-patients-with-autosomal-dominant-polycystic-kidney-disease
#6
Ronald D Perrone, Mohamad-Samer Mouksassi, Klaus Romero, Frank S Czerwiec, Arlene B Chapman, Berenice Y Gitomer, Vicente E Torres, Dana C Miskulin, Steve Broadbent, Jean F Marier
Introduction: Total kidney volume (TKV) is a promising imaging biomarker for tracking and predicting the natural history of patients with autosomal dominant polycystic kidney disease. Methods: A drug development tool was developed by linking longitudinal TKV measurements to the probability of a 30% decline of estimated glomerular filtration rate (eGFR) or end-stage renal disease. Drug development tools were developed based on observational data collected over multiple decades for an eGFR decline and end-stage renal disease in 641 and 866 patients with autosomal dominant polycystic kidney disease, respectively...
May 2017: KI Reports
https://www.readbyqxmd.com/read/29142937/geographic-variation-and-us-county-characteristics-associated-with-rapid-kidney-function-decline
#7
Benjamin Bowe, Yan Xie, Hong Xian, Min Lian, Ziyad Al-Aly
Introduction: Geographic variation in the prevalence of chronic kidney disease and incidence of end-stage renal disease has been previously reported. However, the geographic epidemiology of rapid estimated glomerular filtration rate (eGFR) decline has not been examined. Methods: We built a longitudinal cohort of 2,107,570 US veterans to characterize the spatial epidemiology of and examine the associations between US county characteristics and rapid eGFR decline...
January 2017: KI Reports
https://www.readbyqxmd.com/read/29130991/pre-end-stage-renal-disease-hemoglobin-variability-predicts-post-end-stage-renal-disease-mortality-in-patients-transitioning-to-dialysis
#8
Keiichi Sumida, Charles Dyer Diskin, Miklos Z Molnar, Praveen K Potukuchi, Fridtjof Thomas, Jun Ling Lu, Connie M Rhee, Elani Streja, Kunihiro Yamagata, Kamyar Kalantar-Zadeh, Csaba P Kovesdy
BACKGROUND: Hemoglobin variability (Hb-var) has been associated with increased mortality both in non-dialysis dependent chronic kidney disease (NDD-CKD) and end-stage renal disease (ESRD) patients. However, the impact of Hb-var in advanced NDD-CKD on outcomes after dialysis initiation remains unknown. METHODS: Among 11,872 US veterans with advanced NDD-CKD transitioning to dialysis between October 2007 through September 2011, we assessed Hb-var calculated from the residual SD of at least 3 Hb values during the last 6 months before dialysis initiation (prelude period) using within-subject linear regression models, and stratified into quartiles...
2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/29118087/overweight-and-obesity-are-predictors-of-progression-in-early-autosomal-dominant-polycystic-kidney-disease
#9
Kristen L Nowak, Zhiying You, Berenice Gitomer, Godela Brosnahan, Vincente E Torres, Arlene B Chapman, Ronald D Perrone, Theodore I Steinman, Kaleab Z Abebe, Frederic F Rahbari-Oskoui, Alan S L Yu, Peter C Harris, Kyongtae T Bae, Marie Hogan, Dana Miskulin, Michel Chonchol
The association of overweight/obesity with disease progression in patients with autosomal dominant polycystic kidney disease (ADPKD) remains untested. We hypothesized that overweight/obesity associates with faster progression in early-stage ADPKD. Overall, 441 nondiabetic participants with ADPKD and an eGFR>60 ml/min per 1.73 m(2) who participated in the Halt Progression of Polycystic Kidney Disease Study A were categorized on the basis of body mass index (BMI; calculated using nonkidney and nonliver weight) as normal weight (18...
November 8, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29112764/sleep-apnea-and-kidney-function-trajectory-results-from-a-20-year-longitudinal-study-of-healthy-middle-aged-adults
#10
Muna T Canales, Erika W Hagen, Jodi H Barnet, Paul E Peppard, Stephen F Derose
Objective: To determine whether sleep apnea, defined by polysomnography, accelerates kidney function decline in generally healthy adults not selected for sleep apnea or kidney disease. Methods: We performed a retrospective cohort study 855 participants from the Wisconsin Sleep Cohort Study (WSCS), a large 20-year population-based study of sleep apnea, who had at least one polysomnogram and serial measurements of serum creatinine over time. Sleep apnea was defined as an apnea-hypopnea index ≥15 or positive airway pressure (PAP) use at baseline...
November 3, 2017: Sleep
https://www.readbyqxmd.com/read/29077658/early-conversion-to-belatacept-in-kidney-transplant-recipient-with-low-glomerular-filtration-rate
#11
Dina Abdelwahab Elhamahmi, Raymond L Heilman, Byron Smith, Janna Huskey, Hasan Khamash, Bruce Kaplan
BACKGROUND: Our aim was to determine the impact of converting from tacrolimus to belatacept in patients with stable low eGFR early after kidney transplant. METHODS: This is a single center retrospective case control study. During this study period we had a clinical protocol to convert patients to belatacept if they had a stable but low GFR and they were at least 1-month posttransplant. Eligible patients had stable but low eGFR usually < 40 ml/min/1.73m2. We used direct matching to select 1 control case for each patient converted to belatacept...
October 26, 2017: Transplantation
https://www.readbyqxmd.com/read/29037450/tissue-expression-of-tubular-injury-markers-is-associated-with-renal-function-decline-in-diabetic-nephropathy
#12
Subin Hwang, Jeeeun Park, Jinhae Kim, Hye Ryoun Jang, Ghee Young Kwon, Wooseong Huh, Yoon-Goo Kim, Dae Joong Kim, Ha Young Oh, Jung Eun Lee
AIMS: The pathogenesis of diabetic kidney disease (DKD) is complex and multifactorial; increasing evidence suggests that tubular injury and inflammatory process are involved in disease progression. We investigated the potential association of renal expression of tubular injury markers, neutrophil gelatinase-associated lipocalin (NGAL), kidney injury molecule-1 (KIM-1), and inflammatory markers, tumor necrosis factor receptor (TNFR) 1 and 2 with renal progression in pathologically proven diabetic nephropathy (DN)...
August 24, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/29036269/longitudinal-blood-pressure-changes-and-kidney-function-decline-in-persons-without-chronic-kidney-disease-findings-from-the-mesa-study
#13
Gregory L Judson, Anna D Rubinsky, Michael G Shlipak, Ronit Katz, Holly Kramer, David R Jacobs, Michelle C Odden, Carmen A Peralta
Background: While changes in blood pressure (BP) are independently associated with cardiovascular events, less is known about the association between changes in BP and subsequent changes in renal function in adults with an estimated glomerular filtration rate (eGFR) of > 60 ml/min/1.73 m2. Methods: The present study included 3,920 participants in the Multi-Ethnic Study of Atherosclerosis (MESA) study who had ≥2 BP measurements during the first 5 years of MESA and had eGFR measurements at both year 5 and 10...
October 5, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28992073/urinary-peptide-biomarker-panel-associated-with-an-improvement-in-estimated-glomerular-filtration-rate-in-chronic-kidney-disease-patients
#14
Katerina Markoska, Martin Pejchinovski, Claudia Pontillo, Petra Zürbig, Lotte Jacobs, Andrew Smith, Jelka Masin-Spasovska, Olivera Stojceva-Taneva, Momir Polenakovic, Fulvio Magni, Harald Mischak, Goce Spasovski
Background: An improvement in the glomerular filtration rate (GFR) of chronic kidney disease patients has been an underestimated clinical outcome. Although this may be considered as an unexpected disease course, it may provide some insights into possible mechanisms underlying disease remission and/or regression. Therefore, our aim was to identify urinary peptide biomarkers associated with an improvement in estimated GFR (eGFR) over time and to improve patient stratification. Methods: Capillary electrophoresis coupled with mass spectrometry (CE-MS) was employed to evaluate the urine peptidome of patients with different types of renal diseases...
September 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28980397/gfr-%C3%A2-25-years-postdonation-in-donors-with-vs-without-a-1-st-degree-relative-with-esrd
#15
Arthur J Matas, David M Vock, Hassan N Ibrahim
An increased risk of ESRD has been reported for living kidney donors, and appears to be higher for those donating to a relative. The reasons for this are not clear. One possibility is that ESRD may be due the nephrectomy-related reduction in GFR, followed by an age-related decline that may be more rapid in related donors. Between 1/1/1990 - 12/31/2014, we did 2002 living donor nephrectomies. We compared long-term postdonation eGFR trajectory for donors with (n=1245) versus without (n=757) a first-degree relative with ESRD...
October 5, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28912373/the-association-of-sleep-duration-and-quality-with-ckd-progression
#16
Ana C Ricardo, Kristen Knutson, Jinsong Chen, Lawrence J Appel, Lydia Bazzano, Eunice Carmona-Powell, Janet Cohan, Manjula Kurella Tamura, Susan Steigerwalt, John Daryl Thornton, Matthew Weir, Nicolas F Turek, Mahboob Rahman, Eve Van Cauter, James P Lash
Evidence suggests that sleep disorders are common in individuals with CKD, but the influence of sleep duration and quality on CKD progression is unknown. We examined the association of habitual sleep duration and quality with CKD progression in 431 Chronic Renal Insufficiency Cohort (CRIC) Study participants, of whom 48% were women and 50% had diabetes (mean age of 60 years old, mean eGFR =38 ml/min per 1.73 m2, and median urine protein-to-creatinine ratio [UPCR] =0.20 g/g). We assessed sleep duration and quality by 5-7 days of wrist actigraphy and self-report...
September 14, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28893924/changes-in-albuminuria-and-subsequent-risk-of-incident-kidney-disease
#17
Keiichi Sumida, Miklos Z Molnar, Praveen K Potukuchi, Koshy George, Fridtjof Thomas, Jun Ling Lu, Kunihiro Yamagata, Kamyar Kalantar-Zadeh, Csaba P Kovesdy
BACKGROUND AND OBJECTIVES: Albuminuria is a robust predictor of CKD progression. However, little is known about the associations of changes in albuminuria with the risk of kidney events outside the settings of clinical trials. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: In a nationwide cohort of 56,946 United States veterans with an eGFR≥60 ml/min per 1.73 m2, we examined the associations of 1-year fold changes in albuminuria with subsequent incident CKD (>25% decrease in eGFR reaching <60 ml/min per 1...
September 11, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28867309/b-cell-activating-factor-baff-reflects-patients-immunological-risk-profile-after-kidney-transplantation
#18
A Schuster, B Jung, J Hofbauer, L Kühne, D Zecher, B Banas, T Bergler
The B-cell activating factor BAFF plays an important role in the development and maturation of B-lymphocytes, which can contribute to the generation of donor-specific antibodies and thus may influence graft function and graft survival. Inconsistent data on the role of BAFF levels after renal transplantation for the formation of donor-specific antibodies and the contribution for allograft rejection exist. The aim of the current study was to determine to what extent the degree of pre-immunization is reflected by each patient's BAFF levels before transplantation and in the follow-up...
September 1, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28775248/clinical-outcome-of-rituximab-and-intravenous-immunoglobulin-combination-therapy-in-kidney-transplant-recipients-with-chronic-active-antibody-mediated-rejection
#19
Tae Hyun Ban, Ji Hyun Yu, Byung Ha Chung, Bum Soon Choi, Cheol Whee Park, Yong-Soo Kim, Chul Woo Yang
BACKGROUND We previously reported that rituximab (RIT) and intravenous immunoglobulin (IVIg) combination therapy is effective in deterring the progression of chronic active antibody-mediated rejection (CAMR), but that report was based on the assessment of a small number of cases for a short period. MATERIAL AND METHODS Forty-three patients with CAMR were recruited during the study period after 2010. The patients were divided into high (n=17, 39.5%) and low proteinuria groups (n=26, 60.5%) based on spot urine protein-to-creatinine ratio of > or <3...
August 4, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28765150/heart-failure-increases-the-risk-of-adverse-renal-outcomes-in-patients-with-normal-kidney-function
#20
Lekha K George, Santhosh K G Koshy, Miklos Z Molnar, Fridtjof Thomas, Jun L Lu, Kamyar Kalantar-Zadeh, Csaba P Kovesdy
BACKGROUND: Heart failure (HF) is associated with poor cardiac outcomes and mortality. It is not known whether HF leads to poor renal outcomes in patients with normal kidney function. We hypothesized that HF is associated with worse long-term renal outcomes. METHODS AND RESULTS: Among 3 570 865 US veterans with estimated glomerular filtration rate (eGFR) ≥60 mL min(-1) 1.73 m(-2) during October 1, 2004 to September 30, 2006, we identified 156 743 with an International Classification of Diseases, Ninth Revision, diagnosis of HF...
August 2017: Circulation. Heart Failure
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