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Albuminuria

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https://www.readbyqxmd.com/read/28550045/pacsin2-accelerates-nephrin-trafficking-and-is-up-regulated-in-diabetic-kidney-disease
#1
Vincent Dumont, Tuomas A Tolvanen, Sara Kuusela, Hong Wang, Tuula A Nyman, Sonja Lindfors, Jukka Tienari, Harry Nisen, Shiro Suetsugu, Markus Plomann, Hiroshi Kawachi, Sanna Lehtonen
Nephrin is a core component of podocyte (glomerular epithelial cell) slit diaphragm and is required for kidney ultrafiltration. Down-regulation or mislocalization of nephrin has been observed in diabetic kidney disease (DKD), characterized by albuminuria. Here, we investigate the role of protein kinase C and casein kinase 2 substrate in neurons 2 (PACSIN2), a regulator of endocytosis and recycling, in the trafficking of nephrin and development of DKD. We observe that PACSIN2 is up-regulated and nephrin mislocalized in podocytes of obese Zucker Diabetic Fatty (ZDF) rats that have altered renal function...
May 26, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28546440/albuminuria-proteinuria-and-renal-disease-progression-in-children-with-ckd
#2
Dana Y Fuhrman, Michael F Schneider, Katherine M Dell, Tom D Blydt-Hansen, Robert Mak, Jeffrey M Saland, Susan L Furth, Bradley A Warady, Marva M Moxey-Mims, George J Schwartz
BACKGROUND AND OBJECTIVES: The role of albuminuria as an indicator of progression has not been investigated in children with CKD in the absence of diabetes. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Children were enrolled from 49 centers of the CKD in Children study between January of 2005 and March of 2014. Cross-sectional multivariable linear regression (n=647) was used to examine the relationship between urine protein-to-creatinine (UP/C [milligrams per milligram]) and albumin-to-creatinine (ACR [milligrams per gram]) with eGFR (milliliters per minute per 1...
May 25, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28542215/treatment-with-enalapril-and-not-diltiazem-ameliorated-progression-of-chronic-kidney-disease-in-rats-and-normalized-renal-at1-receptor-expression-as-measured-with-pet-imaging
#3
Basma Ismail, Rob A deKemp, Etienne Croteau, Tayebeh Hadizad, Kevin D Burns, Rob S Beanlands, Jean N DaSilva
ACE inhibitors are considered first line of treatment in patients with many forms of chronic kidney disease (CKD). Other antihypertensives such as calcium channel blockers achieve similar therapeutic effectiveness in attenuating hypertension-related renal damage progression. Our objective was to explore the value of positron emission tomography (PET) imaging of renal AT1 receptor (AT1R) to guide therapy in the 5/6 subtotal-nephrectomy (Nx) rat model of CKD. Ten weeks after Nx, Sprague-Dawley rats were administered 10mg/kg/d enalapril (NxE), 30mg/kg/d diltiazem (NxD) or left untreated (Nx) for an additional 8-10 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28540855/interest-of-the-combined-measurement-of-selected-urinary-proteins-in-the-diagnosis-approach-in-nephrology
#4
Jean-Philippe Bastard, Soraya Fellahi, François-Xavier Lescure, Jacqueline Capeau, Pierre Ronco, Emmanuelle Plaisier
Determination of the protein composition of urine is a non-invasive method helping to diagnose renal lesions and evaluate therapeutic interventions. We present here five observations that highlight the performance and relevance of urine protein analysis combining selected glomerular and tubular protein measurements. Total urine protein level and measurements of urinary IgG, albumin, transferrin alpha-1 microglobulin and retinol binding protein were performed on a urine sample by immunonephelometry. The results were normalized for urine creatinine concentration and integrated in the MDI interpretation software that provides a "urine protein profile" (UPP)...
June 1, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/28540409/angiotensin-ii-induces-calcium-calcineurin-signaling-and-podocyte-injury-by-downregulating-microrna-30-family-members
#5
Yue Zhao, Junnan Wu, Mingchao Zhang, Minlin Zhou, Feng Xu, Xiaodong Zhu, Xianguang Zhou, Yue Lang, Fan Yang, Shifeng Yun, Shaolin Shi, Zhihong Liu
Angiotensin II (AngII) is capable of inducing calcium/calcineurin signaling and podocyte injury; however, the precise underlying mechanism is not well understood. Because we have previously demonstrated that microRNA-30s (miR-30s) inhibit calcium/calcineurin signaling in podocytes, we hypothesize that AngII may induce podocyte injury by downregulating miR-30s and thereby activating calcium/calcineurin signaling. To test this hypothesis, we used an AngII-induced podocyte injury mouse model. The mice were treated with AngII via infusion for 28 days, which resulted in hypertension, albuminuria, and glomerular damage...
May 24, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28539383/glomerulosclerosis-induced-by-deficiency-of-membrane-associated-guanylate-kinase-inverted-2-in-kidney-podocytes
#6
Naritoshi Shirata, Kan-Ichiro Ihara, Kanae Yamamoto-Nonaka, Takuto Seki, Shin-Ichi Makino, Juan Alejandro Oliva Trejo, Takafumi Miyake, Hiroyuki Yamada, Kirk Nicholas Campbell, Takahiko Nakagawa, Kiyoshi Mori, Motoko Yanagita, Peter Mundel, Katsuhiko Nishimori, Katsuhiko Asanuma
Membrane-associated guanylate kinase inverted 2 (MAGI-2) is a component of the slit diaphragm (SD) of glomerular podocytes. Here, we investigated the podocyte-specific function of MAGI-2 using newly generated podocyte-specific MAGI-2-knockout (MAGI-2-KO) mice. Compared with podocytes from wild-type mice, podocytes from MAGI-2-KO mice exhibited SD disruption, morphologic abnormalities of foot processes, and podocyte apoptosis leading to podocyte loss. These pathologic changes manifested as massive albuminuria by 8 weeks of age and glomerulosclerosis and significantly higher plasma creatinine levels at 12 weeks of age; all MAGI-2-KO mice died by 20 weeks of age...
May 24, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28538016/hypoxia-inducible-factor-activation-in-diabetic-kidney-disease
#7
Patrik Persson, Fredrik Palm
PURPOSE OF REVIEW: Tissue hypoxia is present in kidneys from diabetic patients and constitutes a central pathway to diabetic kidney disease (DKD). This review summarizes regulation of hypoxia inducible factor (HIF) and interventions towards the same for treatment of DKD. RECENT FINDINGS: In the hypoxic diabetic kidney, HIF activity and the effects of HIF signaling seem to be cell-specific. In mesangial cells, elevated glucose levels induce HIF activity by a hypoxia-independent mechanism...
May 19, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28529721/the-impact-of-antihypertensives-on-kidney-disease
#8
REVIEW
Diego F Marquez, Gema Ruiz-Hurtado, Luis Ruilope
Arterial hypertension and chronic kidney disease (CKD) are intimately related. The control of blood pressure (BP) levels is strongly recommended in patients with CKD in order to protect the kidney against the accompanying elevation in global cardiovascular (CV) risk. Actually, the goal BP in patients with CKD involves attaining values <140/90 mmHg except if albuminuria is present. In this case, it is often recommended to attain values <130/80 mmHg, although some guidelines still recommend <140/90 mmHg...
2017: F1000Research
https://www.readbyqxmd.com/read/28528353/adrenomedullin-ameliorates-podocyte-injury-induced-by-puromycin-aminonucleoside-in-vitro-and-in-vivo-through-modulation-of-rho-gtpases
#9
Nan Dong, Lixia Meng, Ruqun Xue, Meng Yu, Zhonghua Zhao, Xueguang Liu
PURPOSE: Podocyte injury is a key event in proteinuric kidney disease and eventually glomerular scarring. While adrenomedullin (AM), a potent vasodilatory peptide, has been reported to confer renoprotection in several experimental models of kidney diseases, its effect on injured podocytes and the related mechanism is still largely unknown. METHODS: Employing Western blotting analysis, immunoprecipitation and immunofluorescence, we investigated the effects of AM on the expressions of podocyte cytoskeletal proteins and Rho-family small GTPases (Rho GTPases) in puromycin aminonucleoside (PAN)-induced podocyte injury, both in cultured podocytes and in PAN nephrosis rats...
May 20, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28526293/new-biomarkers-defining-a-novel-early-stage-of-fabry-nephropathy-a-diagnostic-test-study
#10
Patrício Aguiar, Olga Azevedo, Rui Pinto, Jacira Marino, Robert Baker, Carlos Cardoso, José Luís Ducla Soares, Derralynn Hughes
BACKGROUND: Renal involvement in Fabry disease is a major determinant of overall disease prognosis and early enzyme replacement therapy seems effective in preventing progression of kidney injury. Gb3 storage, glomerular sclerosis and tubulo-interstitial fibrosis may occur with minimal or no changes on standard renal tests, hence alternative markers of renal dysfunction are crucial. In this study we compared several biomarkers with albuminuria in the identification of incipient Fabry nephropathy and their diagnostic accuracy to identify chronic kidney disease (CKD) stage≥2...
May 13, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28522654/diabetic-kidney-disease-challenges-progress-and-possibilities
#11
Radica Z Alicic, Michele T Rooney, Katherine R Tuttle
Diabetic kidney disease develops in approximately 40% of patients who are diabetic and is the leading cause of CKD worldwide. Although ESRD may be the most recognizable consequence of diabetic kidney disease, the majority of patients actually die from cardiovascular diseases and infections before needing kidney replacement therapy. The natural history of diabetic kidney disease includes glomerular hyperfiltration, progressive albuminuria, declining GFR, and ultimately, ESRD. Metabolic changes associated with diabetes lead to glomerular hypertrophy, glomerulosclerosis, and tubulointerstitial inflammation and fibrosis...
May 18, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28521876/renoprotective-effect-of-a-novel-selective-ppar%C3%AE-modulator-k-877-in-db-db-mice-a-role-of-diacylglycerol-protein-kinase-c-nad-p-h-oxidase-pathway
#12
Toshinobu Maki, Yasutaka Maeda, Noriyuki Sonoda, Hiroaki Makimura, Shinichiro Kimura, Sayaka Maeno, Ryoichi Takayanagi, Toyoshi Inoguchi
OBJECTIVE: Several clinical studies have shown the beneficial effects of peroxisome proliferator-activated receptor α (PPARα) agonists on diabetic nephropathy. However, the molecular mechanism is not fully understood. Here we show that K-877, a novel selective PPARα modulator, ameliorates nephropathy in db/db mice via inhibition of renal lipid content and oxidative stress. METHODS AND RESULTS: K-877 (0.5mg/kg/day) was administered to db/db mice for 2 or 12weeks...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28515176/acute-exercise-does-not-impair-renal-function-in-non-dialysis-chronic-kidney-disease-patients-regardless-of-disease-stage
#13
Davi Alves de Santana, Jacques R Poortmans, Egidio L Dorea, Juliana Bannwart de Andrade Machado, Alan L Fernandes, Ana Lúcia de Sá Pinto, Bruno Gualano, Hamilton Roschel
Exercise has been overlooked as a potential therapy in chronic kidney disease (CKD), mainly due to a lack of understanding on its safety aspects. Notably, there is no data on renal function after exercise in CKD considering its stages. We investigated the acute effects of a 30-minute moderate-intensity aerobic exercise bout on glomerular filtration rate (GFR) and albuminuria in twenty-two non-dialysis CKD patients divided into: CKD stages 1 and 2 (CKD1-2) and; CKD stages 3 and 4 (CKD3-4). Eleven body mass index-, age-, and sex-matched healthy individuals served as control (CON)...
May 17, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28515118/risk-factors-for-heart-failure-in-patients-with-chronic-kidney-disease-the-cric-chronic-renal-insufficiency-cohort-study
#14
Jiang He, Michael Shlipak, Amanda Anderson, Jason A Roy, Harold I Feldman, Radhakrishna Reddy Kallem, Radhika Kanthety, John W Kusek, Akinlolu Ojo, Mahboob Rahman, Ana C Ricardo, Elsayed Z Soliman, Myles Wolf, Xiaoming Zhang, Dominic Raj, Lee Hamm
BACKGROUND: Heart failure is common in patients with chronic kidney disease. We studied risk factors for incident heart failure among 3557 participants in the CRIC (Chronic Renal Insufficiency Cohort) Study. METHODS AND RESULTS: Kidney function was assessed by estimated glomerular filtration rate (eGFR) using serum creatinine, cystatin C, or both, and 24-hour urine albumin excretion. During an average of 6.3 years of follow-up, 452 participants developed incident heart failure...
May 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28511711/sglt2-inhibitors-a-novel-choice-for-the-combination-therapy-in-diabetic-kidney-disease
#15
REVIEW
Honghong Zou, Baoqin Zhou, Gaosi Xu
Diabetic kidney disease (DKD) is the most common cause of end stage renal disease. The comprehensive management of DKD depends on combined target-therapies for hyperglycemia, hypertension, albuminuria, and hyperlipaemia, etc. Sodium-glucose co-transporter 2 (SGLT2) inhibitors, the most recently developed oral hypoglycemic agents acted on renal proximal tubules, suppress glucose reabsorption and increase urinary glucose excretion. Besides improvements in glycemic control, they presented excellent performances in direct renoprotective effects and the cardiovascular (CV) safety by decreasing albuminuria and the independent CV risk factors such as body weight and blood pressure, etc...
May 16, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28508457/effects-of-canagliflozin-on-cardiovascular-risk-factors-in-patients-with-type-2-diabetes-mellitus
#16
REVIEW
Matthew J Budoff, John P H Wilding
BACKGROUND AND AIMS: Cardiovascular disease is the most common cause of morbidity and mortality among people with type 2 diabetes mellitus (T2DM). The main contributors to cardiovascular risk in T2DM are chronic hyperglycaemia, reduced insulin sensitivity, hypertension and dyslipidaemia. Other cardiovascular risk factors include obesity and visceral adiposity, increased arterial stiffness and renal dysfunction. Results from clinical trials, including a long-term cardiovascular outcome study, have shown that sodium glucose co-transporter 2 (SGLT2) inhibitors can provide multiple cardiometabolic benefits beyond glycaemic control including inducing mild osmotic diuresis, natriuresis and weight loss...
May 2017: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/28507626/follow-up-of-value-of-the-intrarenal-resistivity-indices-and-different-renal-biomarkers-for-early-identification-of-diabetic-nephropathy-in-type-1-diabetic-patients
#17
Soha Abd El Dayem, Abo El Magd El Bohy, Mona Hamed, Solaf Ahmed
AIM: To evaluate intrarenal resistivity index (RI) and different biomarkers of diabetic nephropathy (DN) with clinical signs of DN and its progression over time as early detection of DN. PATIENTS AND METHODS: This longitudinal study included 48 type 1 diabetic patients who were studied at baseline and after three years. A blood sample was taken for assessment of glycosylated haemoglobin (HbA1), lipid profile and a urine sample was taken for assessment of albumin/creatinine ratio, Neutrophil gelatinase-associated lipocalin (NGAL), liver-type fatty acid binding protein (L-FABP) and kidney injury molecule-1 (Kim-1) at baseline and after three years...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28506691/urinary-lysophopholipids-are-increased-in-diabetic-patients-with-nephropathy
#18
Jean-Sébastien Saulnier-Blache, Eva Feigerlova, Jean Michel Halimi, Pierre Gourdy, Ronan Roussel, Bruno Guerci, Aude Dupuy, Justine Bertrand-Michel, Jean-Loup Bascands, Samy Hadjadj, Joost P Schanstra
Diabetic nephropathy (DN) is a major cause of chronic kidney disease that frequently leads to end stage renal failure. Lysophosphatidic acid (LPA) and lysophosphatidylcholine (LPC) are lysophospholipid mediators shown to accumulate in kidney and to promote renal inflammation and tubulo-interstitial fibrosis in diabetic rodent models. Here we assessed whether LPA and LPC were associated to the development of nephropathy in diabetic human patients. Several molecular species of LPA and LPC were quantified by LC/MS-MS in urine and plasma from type 2 diabetic patients with (cases; n=41) or without (controls, n=41) nephropathy symptoms (micro/macro-albuminuria and eGFR<60ml/min/1...
May 10, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28503987/prevalence-of-chronic-kidney-disease-and-its-determinants-in-coronary-heart-disease-patients-in-24-european-countries-insights-from-the-euroaspire-iv-survey-of-the-european-society-of-cardiology
#19
Martin Wagner, Christoph Wanner, Kornelia Kotseva, David Wood, Dirk De Bacquer, Lars Rydén, Stefan Störk, Peter U Heuschmann
Aims Chronic kidney disease (CKD) is associated with the development and progression of coronary heart disease (CHD), in addition to classic cardiovascular risk factors. We analysed the prevalence of CKD in CHD patients from 24 European countries in the ambulatory setting and in a preceding hospital stay for CHD (index). Methods and results A total of 7998 EUROASPIRE IV participants (median 65 years of age, 76% male) attended a study visit 6-36 months after the index hospitalisation. CKD was classified according to stages of estimated glomerular filtration rate (eGFR) and albuminuria (urinary albumin/creatinine ratio)...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28503768/the-contribution-of-cardio-metabolic-risk-factors-to-estimated-glomerular-filtration-rate-egfr-decline-in-indigenous-australians-with-and-without-albuminuria-the-egfr-follow-up-study
#20
Elizabeth Barr, Federica Barzi, Jaquelyne T Hughes, George Jerums, Kerin O'Dea, Alex Brown, Elif I Ekinci, Graham Rd Jones, Paul D Lawton, Ashim Sinha, Richard J MacIsaac, Alan Cass, Louise J Maple-Brown
BACKGROUND: Risk factors for estimated glomerular filtration rate (eGFR) decline beyond albuminuria are not fully understood in Indigenous Australians who have a 6-fold risk of end-stage kidney disease. We assessed associations between cardio-metabolic risk factors and eGFR decline according to baseline albuminuria status to identify potential treatment targets. METHODS: The eGFR Follow-up study is a longitudinal cohort of 520 Indigenous Australians. Linear mixed regression was used to estimate associations between baseline cardio-metabolic risk factors and annual Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) eGFR change (ml/min/1...
May 14, 2017: Nephrology
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