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https://www.readbyqxmd.com/read/28218952/glomerular-hyperfiltration-is-strongly-correlated-with-age-in-congolese-children-with-sickle-cell-anaemia
#1
Michel Ntetani Aloni, René Makuala Ngiyulu, Pépé Mfutu Ekulu, Fiston IkwaNdol Mbutiwi, Jean Robert Makulo, Jean Lambert Gini-Ehungu, Nazaire Mangani Nseka, François Bompeka Lepira
AIM: Glomerular hyperfiltration is an early marker of sickle cell nephropathy and can lead to microalbuminuria and renal failure. Our aim was to identify the associated risk factors, as these could be of preventative importance. METHODS: We recruited 150 children with sickle cell anaemia (SCA), aged 2-18 years and living in Kinshasa, the Democratic Republic of Congo. Hyperfiltration and microalbuminuria were defined as an estimated glomerular filtration rate of less than 140 ml/min/1...
February 20, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28214961/obesity-and-kidney-disease-hidden-consequences-of-the-epidemic
#2
EDITORIAL
Csaba P Kovesdy, Susan L Furth, Carmine Zoccali
Obesity has become a worldwide epidemic, and its prevalence has been projected to grow by 40% in the next decade. This increasing prevalence has implications for the risk of diabetes, cardiovascular disease and also for Chronic Kidney Disease. A high body mass index is one of the strongest risk factors for new-onset Chronic Kidney Disease. In individuals affected by obesity, a compensatory hyperfiltration occurs to meet the heightened metabolic demands of the increased body weight. The increase in intraglomerular pressure can damage the kidneys and raise the risk of developing Chronic Kidney Disease in the long-term...
February 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28205394/obesity-and-kidney-disease-hidden-consequences-of-the-epidemic
#3
Csaba P Kovesdy, Susan L Furth, Carmine Zoccali
Obesity has become a worldwide epidemic, and its prevalence has been projected to grow by 40% in the next decade. This increasing prevalence has implications for the risks of diabetes, cardiovascular disease and also for Chronic Kidney Disease. A high body mass index is one of the strongest risk factors for new-onset Chronic Kidney Disease. In individuals affected by obesity, a series of complex pathophysiologic changes occur that lead to the development of Chronic Kidney Disease. These include on the one hand effects mediated by the downstream consequences of obesity (such as diabetes mellitus and hypertension), but also direct effects of adipose tissue, via humoral factors such as leptin, adiponectin, resistin and visfatin)...
March 2017: Journal of Renal Care
https://www.readbyqxmd.com/read/28188955/increased-podocyturia-in-pregnant-women-compared-to-non-pregnant-women
#4
Itsuko Furuta, Tianyue Zhai, Takeshi Umazume, Satoshi Ishikawa, Kinuko Nakagawa, Rina Akaishi, Takahiro Yamada, Mamoru Morikawa, Hisanori Minakami
AIM: Hyperfiltration is a cause of podocyturia and occurs physiologically in the kidney of pregnant women. Podocyturia is increased in preeclamptic pregnancies, but it is unclear whether there is also any increase in uncomplicated pregnancies. This study was performed to examine whether podocyturia and urine aquaporin 2 mRNA expression are increased in healthy pregnant women (PW) compared to healthy non-pregnant women (NPW). METHODS: Eleven urines obtained from 11 NPW and longitudinal 76 urines from 40 PW with uncomplicated pregnancies (median number [range] of urine samples/person, 2 [1 - 3]) were studied...
February 11, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28178697/obesity-and-kidney-disease-hidden-consequences-of-the-epidemic
#5
Csaba P Kovesdy, Susan L Furth, Carmine Zoccali
Obesity has become a worldwide epidemic, and its prevalence has been projected to grow by 40% in the next decade. This increasing prevalence has implications for the risk of diabetes, cardiovascular disease, and also for chronic kidney disease. A high body mass index is one of the strongest risk factors for new-onset chronic kidney disease. In individuals affected by obesity, a compensatory hyperfiltration occurs to meet the heightened metabolic demands of the increased body weight. The increase in intraglomerular pressure can damage the kidneys and raise the risk of developing chronic kidney disease in the long-term...
February 8, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28171864/obesity-and-kidney-disease-hidden-consequences-of-the-epidemic
#6
Csaba P Kovesdy, Susan L Furth, Carmine Zoccali
Obesity has become a worldwide epidemic, and its prevalence has been projected to grow by 40% in the next decade. This increasing prevalence has implications for the risk of diabetes, cardiovascular disease, and also for chronic kidney disease. A high body mass index is one of the strongest risk factors for new-onset chronic kidney disease. In individuals affected by obesity, a compensatory hyperfiltration occurs to meet the heightened metabolic demands of the increased body weight. The increase in intraglomerular pressure can damage the kidneys and raise the risk of developing chronic kidney disease in the long-term...
February 8, 2017: Nephron
https://www.readbyqxmd.com/read/28166744/effect-of-large-weight-reductions-on-measured-and-estimated-kidney-function
#7
Bernt Johan von Scholten, Frederik Persson, Maria S Svane, Tine W Hansen, Sten Madsbad, Peter Rossing
BACKGROUND: When patients experience large weight loss, muscle mass may be affected followed by changes in plasma creatinine (pCr). The MDRD and CKD-EPI equations for estimated GFR (eGFR) include pCr. We hypothesised that a large weight loss reduces muscle mass and pCr causing increase in eGFR (creatinine-based equations), whereas measured GFR (mGFR) and cystatin C-based eGFR would be unaffected if adjusted for body surface area. METHODS: Prospective, intervention study including 19 patients...
February 6, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28161263/the-measured-glomerular-filtration-rate-mgfr-before-and-6%C3%A2-months-after-bariatric-surgery-a-pilot-study
#8
Maëva Clerte, Sandra Wagner, Claire Carette, Albane Brodin-Sartorius, Éve Vilaine, Jean-Claude Alvarez, Emuri Abe, Charles Barsamian, Sébastien Czernichow, Ziad A Massy
INTRODUCTION: Over the last few decades, the prevalence of obesity has increased dramatically. This increase has been mirrored by a rise in the risk of a number of health conditions, including hypertension, diabetes and chronic kidney disease. Although the weight loss following bariatric surgery has been shown to relieve the severity of diabetes and reduce hypertension, the effect on renal function has been less extensively evaluated. OBJECTIVE: The aims of the present study were to: (i) compare the estimated glomerular filtration rate (eGFR, using the MDRD and CKD-EPI equations) and the calculated glomerular filtration rate (using the 24-hour urine volume) with the measured glomerular filtration rate (mGFR) assessed with the plasma iohexol clearance method in severely obese patients, and (ii) evaluate the effect of weight loss on the mGFR 6 months after bariatric surgery...
February 1, 2017: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/28159494/compensatory-structural-and-functional-adaptation-after-radical-nephrectomy-for-renal-cell-carcinoma-according-to-preoperative-stage-of-chronic-kidney-disease-choi-dk-jung-sb-park-bh-jeong-bc-seo-si-jeon-ss-lee-hm-choi-hy-jeon-hg-j-urol-2015-oct-194-4-910-5
#9
Raman Jay, S B Jung, B H Park, B C Jeong, S I Seo, S S Jeon, H M Lee, H Y Choi, H G Jeon
PURPOSE: We investigated structural hypertrophy and functional hyperfiltration as compensatory adaptations after radical nephrectomy in patients with renal cell carcinoma according to the preoperative chronic kidney disease stage. MATERIALS AND METHODS: We retrospectively identified 543 patients who underwent radical nephrectomy for renal cell carcinoma between 1997 and 2012. Patients were classified according to preoperative glomerular filtration rate as no chronic kidney disease-glomerular filtration rate 90ml/min/1...
March 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28151912/cystatin-c-is-associated-with-partial-recovery-of-kidney-function-and-progression-to-chronic-kidney-disease-in-living-kidney-donors-observational-study
#10
Ji-Yeon Bang, Seon-Ok Kim, Sae-Gyul Kim, Jun-Gol Song, Gyu Sam Hwang
Donor nephrectomy in living-donor kidney transplantation may result in hyperfiltration injury in remnant kidney; however, its clinical implication in partial recovery of kidney function (PRKF) in remnant kidney and chronic kidney disease (CKD) progression remains unclear. Thus, we investigated the effect of PRKF on CKD development in the residual kidney and the utility of cystatin-C (Cys-C) in evaluating renal function in living-donor kidney transplantation donors.The electronic medical records and laboratory results of 1648 kidney transplant (KT) donors and 13,834 healthy nondonors between January 2006 and November 2014 were reviewed...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28148531/primary-proximal-tubule-hyperreabsorption-and-impaired-tubular-transport-counterregulation-determine-glomerular-hyperfiltration-in-diabetes-a-modeling-analysis
#11
Karen Melissa Hallow, Yeshitila Gebremichael, Gabriel Helmlinger, Volker Vallon
Glomerular hypertension and hyperfiltration in early diabetes is associated with development and progression of diabetic kidney disease. The tubular hypothesis of diabetic hyperfiltration proposes that it is initiated by a primary increase in sodium (Na) reabsorption in the proximal tubule (PT) and the resulting tubuloglomerular feedback (TGF) response and lowering of Bowman space pressure (PBow). Here we utilized a mathematical model of the human kidney to investigate over acute and chronic timescales the mechanisms responsible for the magnitude of the hyperfiltration response...
February 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28143897/glomerular-hyperfiltration-in-diabetes-mechanisms-clinical-significance-and-treatment
#12
Lennart Tonneijck, Marcel H A Muskiet, Mark M Smits, Erik J van Bommel, Hiddo J L Heerspink, Daniël H van Raalte, Jaap A Joles
An absolute, supraphysiologic elevation in GFR is observed early in the natural history in 10%-67% and 6%-73% of patients with type 1 and type 2 diabetes, respectively. Moreover, at the single-nephron level, diabetes-related renal hemodynamic alterations-as an adaptation to reduction in functional nephron mass and/or in response to prevailing metabolic and (neuro)hormonal stimuli-increase glomerular hydraulic pressure and transcapillary convective flux of ultrafiltrate and macromolecules. This phenomenon, known as glomerular hyperfiltration, classically has been hypothesized to predispose to irreversible nephron damage, thereby contributing to initiation and progression of kidney disease in diabetes...
January 31, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28121180/high-ratios-of-kidney-function-to-kidney-size-are-related-to-mortality-and-kidney-function-decline-in-high-risk-patients
#13
Nicolette Gc van der Sande, Peter J Blankestijn, Tim Leiner, Yolanda van der Graaf, Gert Jan de Borst, Maarten Jm Cramer, Frank Lj Visseren
Background The ratio of estimated glomerular filtration rate (eGFR) to kidney size reflects the kidney's capacity for filtration per kidney volume or kidney length. High ratios of eGFR to kidney size, which might indicate glomerular hyperfiltration, could be related to kidney function decline, cardiovascular disease and mortality. Methods In 6926 patients with clinically manifest vascular disease, we evaluated the relationship between eGFR/kidney size and the risk of cardiovascular events and all-cause mortality using Cox regression...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28108282/hyperfiltration-associated-biomechanical-forces-in-glomerular-injury-and-response-potential-role-for-eicosanoids
#14
REVIEW
Mukut Sharma, Ram Sharma, Ellen T McCarthy, Virginia J Savin, Tarak Srivastava
Hyperfiltration is a well-known risk factor in progressive loss of renal function in chronic kidney disease (CKD) secondary to various diseases. A reduced number of functional nephrons due to congenital or acquired cause(s) results in hyperfiltration in the remnant kidney. Hyperfiltration-associated increase in biomechanical forces, namely pressure-induced tensile stress and fluid flow-induced shear stress (FFSS) determine cellular injury and response. We believe the current treatment of CKD yields limited success because it largely attenuates pressure-induced tensile stress changes but not the effect of FFSS on podocytes...
January 17, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28102613/congolese-children-with-sickle-cell-trait-may-exhibit-glomerular-hyperfiltration-a-case-control-study
#15
Michel Ntetani Aloni, René Makwala Ngiyulu, Célestin Ndosimao Nsibu, Pépé Mfutu Ekulu, Jean Robert Makulo, Jean-Lambert Gini-Ehungu, Nazaire Mangani Nseka, François Bompeka Lepira
BACKGROUND: The prevalence of sickle cell trait is extremely high in sub-Saharan Africa. Recent studies have reported the impact of sickle cell carriers on renal function. However, data on renal abnormalities in children with sickle cell trait in this part of the world are unknown. In this report, we assess the glomerular function of children with sickle cell trait (SCT). METHODS: A case control study was conducted to assess the glomerular function in 43 Congolese children with sickle cell trait (Hb-AS) matched for age to 65 children with sickle cell anemia in steady state (Hb-SS) and 67 normal controls (Hb-AA)...
January 19, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28090231/effects-of-ipragliflozin-on-diabetic-nephropathy-and-blood-pressure-in-patients-with-type-2-diabetes-an-open-label-study
#16
Daisuke Ito, Emi Ikuma-Suwa, Kazuyuki Inoue, Kimie Kaneko, Morifumi Yanagisawa, Kouichi Inukai, Mitsuhiko Noda, Akira Shimada
BACKGROUND: Sodium-glucose cotransporter 2 (SGLT2) inhibitors are novel agents used to treat type 2 diabetic patients. We investigated the efficacy of the SGLT2 inhibitor ipragliflozin on diabetic nephropathy in Japanese patients with type 2 diabetes. METHODS: A 50 mg dose of ipragliflozin was administered for 24 weeks to 50 patients with type 2 diabetes who were concomitantly managed with diet and exercise therapy alone or antidiabetic medications other than SGLT2 inhibitors...
February 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28031170/the-influence-of-sex-on-hyperfiltration-in-patients-with-uncomplicated-type-1-diabetes
#17
Marko Škrtić, Yuliya Lytvyn, Petter Bjornstad, Heather N Reich, James W Scholey, Paul M Yip, Etienne B Sochett, Bruce A Perkins, David Z I Cherney
The aim of this analysis was to examine sex-based differences in renal segmental resistances in healthy controls (HC) and patients with type 1 diabetes (T1D). We hypothesized that hyperfiltration - an early hemodynamic abnormality associated with diabetic nephropathy (DN) - would disproportionately affect women with T1D, thereby attenuating protection against the development of renal complications. Glomerular hemodynamic parameters were evaluated in HC (n=30) and in normotensive, normoalbuminuric patients with T1D and either baseline normofiltration (n=36, T1D-N, glomerular filtration rate [GFR] 90-134 ml/min/1...
December 28, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28005707/high-glomerular-filtration-rate-is-associated-with-arterial-stiffness-in-chinese-population
#18
Lin Lin, Kui Peng, Rui Du, Xiaolin Huang, Wanwan Sun, Lin Ding, Po Wang, Ya Huang, Yu Xu, Min Xu, Yuhong Chen, Yufang Bi, Weiqing Wang, Jieli Lu
OBJECTIVES: Decreased glomerular filtration rate (GFR) has been suspected as a risk factor for arterial stiffness. Whether high GFR is the risk factor of arterial stiffness and cardiovascular disease remains uncertain. We aim to evaluate the association between high estimated GFR (eGFR) and arterial stiffness in Chinese adults. METHODS: We performed a cross-sectional study involving 9136 Chinese adults without chronic kidney disease. Arterial stiffness was measured by brachial-ankle pulse wave velocity (baPWV) and pulse pressure (PP)...
February 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/27999101/back-to-the-future-glomerular-hyperfiltration-and-the-diabetic-kidney
#19
Katherine R Tuttle
No abstract text is available yet for this article.
January 2017: Diabetes
https://www.readbyqxmd.com/read/27988210/neuropilin1-regulates-glomerular-function-and-basement-membrane-composition-through-pericytes-in-the-mouse-kidney
#20
Monika Wnuk, Manuel A Anderegg, Werner A Graber, Regula Buergy, Daniel G Fuster, Valentin Djonov
Neuropilin1 (Nrp1) is a co-receptor best known to regulate the development of endothelial cells and is a target of anticancer therapies. However, its role in other vascular cells including pericytes is emergent. The kidney is an organ with high pericyte density and cancer patients develop severe proteinuria following administration of NRP1B-neutralizing antibody combined with bevacizumab. Therefore, we investigated whether Nrp1 regulates glomerular capillary integrity after completion of renal development using two mouse models; tamoxifen-inducible NG2Cre to delete Nrp1 specifically in pericytes and administration of Nrp1-neutralizing antibodies...
December 14, 2016: Kidney International
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