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https://www.readbyqxmd.com/read/28938678/the-response-of-the-oxford-classification-to-steroid-in-iga-nephropathy-a-systematic-review-and-meta-analysis
#1
Pingping Yang, Xi Chen, Lei Zeng, Hua Hao, Gaosi Xu
BACKGROUND: The present review is aimed to evaluate the correlation between pathological features and the response to steroid in the patients with IgA nephropathy according to the Oxford classification, mesangial hypercellularity (M), endocapillary hypercellularity (E), segmental glomerulosclerosis (S), tubular atrophy and interstitial fibrosis (T). METHODS: We searched Chinese Biomedical Database, EMBASE, Cochrane Library, PubMed and MEDLINE with all spellings of "IgA nephropathy", "Oxford Classification", and "steroid"...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938511/-obesity-and-kidney-disease-renal-consequences-of-an-epidemic
#2
Helmut Schiffl, Susanne Maria Lang
Overweight and obesity are widespread in the German population, affecting not only adults but also a significant number of children and adolescents. The risk to develop chronic kidney disease is markedly increased in overweight or adipose children, adolescents and adults.Overweight and obesity induced risk factors have a direct impact on the development of chronic renal disease (obesity-associated focal segmental glomerulosclerosis). They accelerate the progression of coexistent nephropathies (diabetic or hypertensive nephropathy, primary glomerulonephritides) and are independent risk factors for the development of acute kidney injury in critically ill patients...
September 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28937082/treatment-of-steroid-resistant-focal-segmental-glomerulosclerosis-with-rituximab-a-case-report-and-review-of-literature
#3
Mohamed Hasham Varwani, Ahmed Sokwala
Various immunomodulating agents have been tried for the treatment of steroid-resistant focal segmental glomerulosclerosis (FSGS) in the native kidney. A few case series and small studies have reported mixed results with the use of Rituximab for this indication. We report on the case of a 76-year-old male with steroid-resistant FSGS successfully treated with rituximab and remained in remission at the end of six months. A review of the literature highlights the paucity of data on this subject. We conclude that rituximab is a potentially useful treatment for steroid resistant FSGS and larger controlled studies are needed to further define its role in this setting...
September 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28894114/cinaciguat-ameliorates-glomerular-damage-by-reducing-erk1-2-activity-and-tgf-%C3%A3-expression-in-type-1-diabetic-rats
#4
Szabina Czirok, Lilla Fang, Tamás Radovits, Gábor Szabó, Gábor Szénási, László Rosivall, Béla Merkely, Gábor Kökény
Decreased soluble guanylate cyclase activity and cGMP levels in diabetic kidneys were shown to influence the progression of nephropathy. The regulatory effects of soluble guanylate cyclase activators on renal signaling pathways are still unknown, we therefore investigated the renal molecular effects of the soluble guanylate cyclase activator cinaciguat in type-1 diabetic (T1DM) rats. Male adult Sprague-Dawley rats were divided into 2 groups after induction of T1DM with 60 mg/kg streptozotocin: DM, untreated (DM, n = 8) and 2) DM + cinaciguat (10 mg/kg per os daily, DM-Cin, n = 8)...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28891390/pathology-and-epidemiology-of-oxalate-nephrosis-in-cheetahs
#5
Emily P Mitchell, Molly E Church, Sarah M Nemser, Betsy Jean Yakes, Eric R Evans, Renate Reimschuessel, Karin Lemberger, Peter N Thompson, Karen A Terio
To investigate cases of acute oxalate nephrosis without evidence of ethylene glycol exposure, archived data and tissues from cheetahs ( Acinonyx jubatus) from North America ( n = 297), southern Africa ( n = 257), and France ( n = 40) were evaluated. Renal and gastrointestinal tract lesions were characterized in a subset of animals with ( n = 100) and without ( n = 165) oxalate crystals at death. Crystals were confirmed as calcium oxalate by Raman spectroscopy in 45 of 47 cheetahs tested. Crystals were present in cheetahs from 3...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28879428/difficult-to-treat-idiopathic-nephrotic-syndrome-established-drugs-open-questions-and-future-options
#6
REVIEW
Markus J Kemper, Lisa Valentin, Michael van Husen
The idiopathic nephrotic syndrome in childhood can be classified according to the International Study of Kidney Disease in Children (ISKDC) based on the response to steroids. Typically, steroid-sensitive nephrotic syndrome (SSNS) is characterised by minimal changes in disease (MCD) histology, whereas in steroid-resistant nephrotic syndrome (SRNS) focal segmental glomerulosclerosis (FSGS) is the most prevalent lesion. Patients with SSNS may develop frequent relapses and/or steroid dependency, which can be difficult to treat...
September 6, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28878938/presentation-pathology-and-prognosis-of-renal-disease-in-type-2-diabetes
#7
Jasmine Tan, L Jonathan Zwi, John F Collins, Mark R Marshall, Tim Cundy
OBJECTIVE: Non-diabetic renal disease (NDRD) is common in patients with type 2 diabetes (T2D), but the relationship between its presentation and prognosis is unknown. RESEARCH DESIGN AND METHODS: In a retrospective cohort study, we compared renal and patient survival among 263 patients with T2D who had native renal biopsies between 2002 and 2008 from three Auckland hospitals in New Zealand. The presence of diabetic nephropathy (DN), NDRD or mixed (DN and NDRD) was determined from biopsy...
2017: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/28878342/inhibition-of-ship2-in-cd2ap-deficient-podocytes-ameliorates-reactive-oxygen-species-generation-but-aggravates-apoptosis
#8
Pauliina Saurus, Tuomas A Tolvanen, Sonja Lindfors, Sara Kuusela, Harry Holthöfer, Eero Lehtonen, Sanna Lehtonen
Lack of CD2-associated protein (CD2AP) in mice increases podocyte apoptosis and leads to glomerulosclerosis and renal failure. We showed previously that SHIP2, a negative regulator of the PI3K/AKT signalling pathway, interacts with CD2AP. Here, we found that the expression level and activity of SHIP2 and production of reactive oxygen species (ROS) are increased in cultured CD2AP knockout (CD2AP-/-) mouse podocytes. Oxidative stress was also increased in CD2AP-/- mouse glomeruli in vivo. We found that puromycin aminonucleoside (PA), known to increase ROS production and apoptosis, increases SHIP2 activity and reduces CD2AP expression in cultured human podocytes...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28868299/tubuloreticular-inclusions-in-the-absence-of-systemic-lupus-erythematosus-and-hiv-infection-a-report-of-three-pediatric-cases
#9
Ayah Elmaghrabi, Elizabeth Brown, Ei Khin, Jared Hassler, Allen R Hendricks
Tubuloreticular inclusions (TRIs) are subcellular structures located within the cisternae of endoplasmic reticulum. Formation of TRIs has been linked to the exposure of excess interferon (IFN), either from endogenous or exogenous sources. In renal disease, TRIs have been most commonly associated with systemic lupus erythematosus (SLE), and human immunodeficiency virus-associated nephropathy (HIVAN). Case reports of patients with renal biopsies showing TRIs without underlying SLE or HIV are infrequent in adults, and to our knowledge none have been reported in children...
May 2017: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/28860935/usefulness-of-urinary-collagen-iv-excretion-for-predicting-the-severity-of-henoch-sch%C3%A3-nlein-nephropathy-children
#10
Małgorzata Mizerska-Wasiak, Karolina Cichoń-Kawa, Jadwiga Małdyk, Elżbieta Górska, Urszula Demkow, Małgorzata Pańczyk-Tomaszewska
THE AIM OF THE STUDY: The aim of the study was to evaluate the usefulness of urinary collagen IV (Col IV) excretion for predicting the severity of autoimmune renal inflammation in children with HSN (Henoch-Schönlein nephritis). MATERIAL AND METHODS: We studied 26 children, in whom HSN was diagnosed based on kidney biopsy. In all patients, urinalysis was performed and 24-hour urinary protein excretion was measured at the onset of the disease. All kidney biopsies were also scored using the Oxford classification: M - mesangial hypercellularity score (M0 absent, M1 present); E - presence of endocapillary proliferation (E0 absent, E1 present), S - segmental glomerulosclerosis/adhesion (S0 absent, S1 present), T - tubular atrophy/interstitial fibrosis (T0 ≤ 25%, T1 26-50%, T2 > 50%)...
2017: Central-European Journal of Immunology
https://www.readbyqxmd.com/read/28858296/ccn3-suppresses-tgf-%C3%AE-1-induced-extracellular-matrix-accumulation-in-human-mesangial-cells-in-vitro
#11
Hai-Fei Liu, Hong Liu, Lin-Li Lv, Kun-Ling Ma, Yi Wen, Long Chen, Bi-Cheng Liu
Glomerular sclerosis is characterized by mesangial cell proliferation and progressive extracellular matrix (ECM) accumulation. CCN3 belongs to the CCN family of matrix proteins; increasing evidence suggests that CCN3 is an endogenous negative regulator of the ECM and fibrosis. However, the exact role of CCN3 in the accumulation of ECM remains unknown. The aim of the present study was to investigate the effects of CCN3 on TGF-β1-induced production of ECM in human mesangial cells (HMCs) in vitro. Treatment with TGF-β1 (0...
August 31, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28857521/igm-as-a-novel-predictor-of-disease-progression-in-secondary-focal-segmental-glomerulosclerosis
#12
Arijana Pačić, Petar Šenjug, Jasna Bacalja, Miroslav Tišljar, Ivica Horvatić, Stela Bulimbašić, Mladen Knotek, Krešimir Galešić, Danica Galešić Ljubanović
AIM: To determine the role of immunoglobulin M (IgM) deposits in clinical manifestations, disease outcome, and treatment response of idiopathic and secondary focal segmental glomerulosclerosis (FSGS). METHODS: Kidney biopsy specimens of 171 patients diagnosed with FSGS (primary and secondary) and 50 control patients were retrospectively included in the study. For each patient, clinical and outcome data were obtained and compared to morphological parameters, including immunofluorescence analysis of mesangial IgM and complement 3 (C3) deposits analyzed on kidney biopsy samples...
August 31, 2017: Croatian Medical Journal
https://www.readbyqxmd.com/read/28855604/studying-the-role-of-fascin-1-in-mechanically-stressed-podocytes
#13
Felix Kliewe, Christian Scharf, Henrik Rogge, Katrin Darm, Maja T Lindenmeyer, Kerstin Amann, Clemens D Cohen, Karlhans Endlich, Nicole Endlich
Glomerular hypertension causes glomerulosclerosis via the loss of podocytes, which are challenged by increased mechanical load. We have demonstrated that podocytes are mechanosensitive. However, the response of podocytes to mechanical stretching remains incompletely understood. Here we demonstrate that the actin-bundling protein fascin-1 plays an important role in podocytes that are exposed to mechanical stress. Immunofluorescence staining revealed colocalization of fascin-1 and nephrin in mouse kidney sections...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28852884/clinicopathological-and-long-term-prognostic-features-of-membranous-nephropathy-with-crescents-a-japanese-single-center-experience
#14
Masaya Saito, Atsushi Komatsuda, Ryuta Sato, Ayano Saito, Hajime Kaga, Fumito Abe, Masato Sawamura, Mizuho Nara, Masaru Togashi, Shin Okuyama, Hideki Wakui, Naoto Takahashi
BACKGROUND: Three recent studies from the United States and China reported the clinicopathological features and short-term prognosis in patients with membranous nephropathy (MN) and crescents in the absence of secondary MN, anti-glomerular basement membrane (GBM) antibodies, and anti-neutrophil cytoplasmic antibodies (ANCA). METHODS: We compared clinicopathological and prognostic features in 16 MN patients with crescents (crescent group) and 38 MN patients without crescents (control group), in the absence of secondary MN, anti-GBM antibodies, and ANCA...
August 29, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28852486/diabetes-deafness-and-renal-disease
#15
Iolanda Godinho, Joana Gameiro, Sofia Jorge, Fernando Abreu, Marta Neves, José António Lopes, António Gomes da Costa
Deafness, kidney disease and diabetes are not a usual association, neither is a family history of these diseases. We present the case of a 47-year-old woman with non-nephrotic proteinuria, no haematuria, normal renal function, sensorineural hearing loss, recently diagnosed diabetes and maculopathy. There was a maternal family history of deafness, diabetes and renal disease. Renal biopsy revealed focal and segmental glomerulosclerosis (FSGS), leading to the pursuit of an m.3243A > G mitochondrial mutation and diagnosis of maternally inherited diabetes and deafness...
August 2017: Clinical Kidney Journal
https://www.readbyqxmd.com/read/28852062/farnesoid-x-receptor-activation-protects-the-kidney-from-ischemia-reperfusion-damage
#16
Zhibo Gai, Lei Chu, Zhenqiang Xu, Xiaoming Song, Dongfeng Sun, Gerd A Kullak-Ublick
Farnesoid X receptor (FXR) activation has been reported to reduce inflammation and oxidative stress. Because both inflammation and oxidative stress are critical for tissue destruction during kidney ischemia reperfusion (I/R) injury, we investigated the protective role of FXR against kidney damage induced by I/R in mice. Mice undergoing renal I/R developed the typical features of acute kidney injury (AKI): increased creatinine, albuminuria, tubular necrosis and apoptosis. Inflammatory cytokine production and oxidative stress were also markedly increased...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28845162/induced-pluripotent-stem-cells-reduce-progression-of-experimental-chronic-kidney-disease-but-develop-wilms-tumors
#17
Heloisa Cristina Caldas, Fernando Henrique Lojudice, Cinthia Dias, Ida Maria Maximina Fernandes-Charpiot, Maria Alice Sperto Ferreira Baptista, Rosa Sayoko Kawasaki-Oyama, Mari Cleide Sogayar, Christina Maeda Takiya, Mario Abbud-Filho
The therapeutic effect of induced pluripotent stem cells (iPSs) on the progression of chronic kidney disease (CKD) has not yet been demonstrated. In this study, we sought to assess whether treatment with iPSs retards progression of CKD when compared with bone marrow mesenchymal stem cells (BMSCs). Untreated 5/6 nephrectomized rats were compared with CKD animals receiving BMSCs or iPSs. Renal function, histology, immunohistochemistry, and gene expression were studied. Implanted iPSs were tracked by the SRY gene expression analysis...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28842513/transcription-and-translation-of-apol1-variants-commentary
#18
Samina Ejaz
It is highly significant to document molecular alterations existing in the normal cells prior to the onset of any disease. Knowledge of genetic mutations and associated molecular mechanisms will be helpful for better diagnosis and management of diseases. Major focus of this commentary is to provide a comprehensive understanding about apolipoprotein 1 gene (APOL1), protein encoded by this gene (apoL1) and mechanistic details regarding role of apoL1 in the lysis of Trypanosoma brucei Information about APOL1 genetic variants, APOL1G1 and APOL1G2, is provided along with the association of these variants with hypertension-attributed end-stage renal disease (ESRD) and focal segmental glomerulosclerosis (FSGS)...
August 25, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28842487/loss-of-mucin-type-o-glycans-impairs-the-integrity-of-the-glomerular-filtration-barrier-in-the-mouse-kidney
#19
Kai Song, Jianxin Fu, Jianhua Song, Brett H Herzog, Kirk Bergstrom, Yuji Kondo, J Michael McDaniel, Samuel McGee, Robert Silasi-Mansat, Florea Lupu, Hong Chen, Harini Bagavant, Lijun Xia
The kidney filtration activity is essential for removing toxins and waste products from the body. The vascular endothelial cells of the glomerulus are fenestrated, flattened and are surrounded by podocytes, specialized cells that support the glomerular endothelial cells. Mucin-type core 1-derived O-glycans are highly expressed on both glomerular capillary endothelial cells and their supporting podocytes, but their biological role is unclear. Biosynthesis of core 1-derived O-glycans is catalyzed by the glycosyltransferase C1galt1...
August 25, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28835419/glomerular-mesangial-cell-recruitment-and-function-requires-the-co-receptor-neuropilin-1
#20
Christina Swan Bartlett, Rizaldy Paz Scott, Isabel Anna Carota, Monika L Wnuk, Yashpal S Kanwar, Jeffrey H Miner, Susan E Quaggin
Proteinuria has been reported in cancer patients receiving agents that target the transmembrane receptor neuropilin-1 (Nrp1) suggesting potential adverse effects on glomerular function. Here we show that Nrp1 is highly expressed by mesangial cells and that genetic deletion of the Nrp1 gene from PDGFR+ mesangial cells results in proteinuric disease and glomerulosclerosis, leading to renal failure and death within 6 weeks of age in mice. The major defect is a failure of mesangial cell migration that is required to establish the mature glomerular tuft...
August 23, 2017: American Journal of Physiology. Renal Physiology
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