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treatment of membranous nephropathy

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https://www.readbyqxmd.com/read/27836988/sphingomyelinase-like-phosphodiesterase-3b-mediates-radiation-induced-damage-of-renal-podocytes
#1
Anis Ahmad, Alla Mitrofanova, Jacek Bielawski, Yidong Yang, Brian Marples, Alessia Fornoni, Youssef H Zeidan
The molecular mechanisms responsible for the development of proteinuria and glomerulosclerosis in radiation nephropathy remain largely unknown. Podocytes are increasingly recognized as key players in the pathogenesis of proteinuria in primary and secondary glomerular disorders. The lipid-modulating enzyme sphingomyelin phosphodiesterase acid-like 3B (SMPDL3b) is a key determinant of podocyte injury and a known off target of the anti-CD20 antibody rituximab (RTX). The current study investigates the role of sphingolipids in radiation-induced podocytopathy...
November 11, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27830156/administration-of-traditional-chinese-blood-circulation-activating-drugs-for-microvascular-complications-in-patients-with-type-2-diabetes-mellitus
#2
REVIEW
Lisha He, Han Wang, Chengjuan Gu, Xinhui He, Linhua Zhao, Xiaolin Tong
Traditional Chinese medicine (TCM) is an important complementary strategy for treating diabetes mellitus (DM) in China. Traditional Chinese blood circulation activating drugs are intended to guide an overall approach to the prevention and treatment of microvascular complications of DM. The core mechanism is related to the protection of the vascular endothelium and the basement membrane. Here, we reviewed the scientific evidence underpinning the use of blood circulation activating drugs to prevent and treat DM-induced microvascular complications, including diabetic nephropathy (DN), diabetic peripheral neuropathy (DPN), and diabetic retinopathy (DR)...
2016: Journal of Diabetes Research
https://www.readbyqxmd.com/read/27816395/-alport-syndrome-hereditary-nephropathy-associated-with-mutations-in-genes-coding-for-type-iv-collagen-chains
#3
Laurence Heidet, Marie-Claire Gubler
Alport syndrome is an inherited disorder characterized by the association of a progressive haematuric nephropathy with ultrastructural abnormalities of the glomerular basement membranes, a progressive sensorineural hearing loss and sometimes ocular involvement. Its incidence is less than 1 per 5000 individuals and the disease is the cause of about 2% of end stage renal disease in Europe and the United States. Alport syndrome is clinically and genetically heterogeneous. It is related to mutations in the genes encoding one of three chains, α3, α4 α5 of type IV collagen, the main component of basement membranes, expressed in the glomerular basement membrane...
November 2, 2016: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/27783276/mizoribine-therapy-combined-with-steroids-and-mizoribine-blood-concentration-monitoring-for-idiopathic-membranous-nephropathy-with-steroid-resistant-nephrotic-syndrome
#4
Takao Saito, Masayuki Iwano, Koichi Matsumoto, Tetsuya Mitarai, Hitoshi Yokoyama, Noriaki Yorioka, Shinichi Nishi, Ashio Yoshimura, Hiroshi Sato, Satoru Ogahara, Yoshie Sasatomi, Yasufumi Kataoka, Shiro Ueda, Akio Koyama, Shoichi Maruyama, Masaomi Nangaku, Enyu Imai, Seiichi Matsuo, Yasuhiko Tomino
BACKGROUND: We designed a prospective and randomized trial of mizoribine (MZR) therapy combined with prednisolone (PSL) for idiopathic membranous nephropathy (IMN) with steroid-resistant nephrotic syndrome (SRNS). METHODS: Patients with IMN were divided into 2 groups, and MZR combined with PSL was administered for 2 years. PSL was initially prescribed at 40 mg/day and tapered. MZR was given once-a-day at 150 mg and 3-times-a-day at 50 mg each to groups 1 and 2...
October 25, 2016: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/27773781/the-na-d-glucose-cotransporters-sglt1-and-sglt2-are-targets-for-the-treatment-of-diabetes-and-cancer
#5
REVIEW
Hermann Koepsell
Orally applied SGLT2 (SLC5A2) inhibitors that enter the blood and decrease renal reabsorption of glucose have been approved as antidiabetic drugs. They decrease blood glucose levels, slightly reduce body weight and blood pressure, and decrease the risk for diabetic nephropathy. The SGLT2 inhibitor empagliflozin has been shown to reduce the risk of severe cardiac failure. This review summarizes knowledge about the functions of SGLT2 and the pathophysiology of type 2 diabetes (T2D) and diabetic follow-up diseases...
October 20, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27764902/urinary-n-acetyl-%C3%AE-glucosaminidase-and-egfr-may-identify-patients-to-be-treated-with-immuno-suppression-at-diagnosis-in-idiopathic-membranous-nephropathy
#6
Claudio Bazzi, Tomoko Usui, Virginia Rizza, Daniela Casellato, Maurizio Gallieni, Masaomi Nangaku
BACKGROUND: The clinical course of idiopathic membranous nephropathy (IMN) varies from spontaneous remission of nephrotic syndrome (NS) to end-stage renal disease (ESRD). Selecting patients with high risk of progression for immunosuppressive therapy is mandatory. METHODS: 86 IMN subjects were followed for median of 69 months (range 6-253). Receiver operating characteristic curve and Cox proportional hazards model were used to evaluate prognostic factors for progression, defined as ESRD or eGFR reduction ≥50% of baseline...
October 20, 2016: Nephrology
https://www.readbyqxmd.com/read/27737530/igg4-related-disease-and-idiopathic-membranous-nephropathy-%C3%A2-the-clothes-do-not-make-the-man-%C3%A2
#7
Mercedes Acevedo Ribó, Francisco Javier Ahijado Hormigos, Francisco Díaz, Marta Romero Molina, Maria Angeles Fernandez Rojo, Maria Antonia Garcia Rubiales, Eugenio García Diaz
This case report describes a patient with a previous history of autoimmune pancreatitis secondary to IgG4-related disease, who developed an overt nephrotic syndrome due to membranous nephropathy, surprisingly idiopathic. In all the previously described cases with both concurrent diseases, membranous nephropathy was considered to be secondary to the IgG4-related disease based on the absence of anti-PLA2R1 autoantibodies, and nephrotic syndrome usually remitted after treatment with steroids alone. However, in our patient positivity of serum anti-PLA2R1 autoantibodies together with a normal serum IgG4 level, and the absence of the other most commonly associated diseases were compatible with an idiopathic membranous nephropathy...
October 14, 2016: Clinical Nephrology
https://www.readbyqxmd.com/read/27725943/reversal-of-early-diabetic-nephropathy-by-islet-transplantation-under-the-kidney-capsule-in-a-rat-model
#8
Yunqiang He, Ziqiang Xu, Mingshi Zhou, Minmin Wu, Xuehai Chen, Silu Wang, Kaiyan Qiu, Yong Cai, Hongxing Fu, Bicheng Chen, Mengtao Zhou
Objective. Diabetic nephropathy (DN) is a common microvascular complication of diabetes mellitus, and insulin therapy has many side effects in the treatment of DN. Islet transplantation has emerged as a promising therapy for diabetic patients. This study was established to investigate its advantageous effects in a rat model of early DN. Methods. Streptozotocin was administered to the rats to induce diabetes. Twelve weeks later, the diabetic rats were divided into 3 groups: the islet-transplanted group (IT group), the insulin-treated group (IN group), and the untreated group (DN group)...
2016: Journal of Diabetes Research
https://www.readbyqxmd.com/read/27721233/treatment-of-ormond-disease-and-idiopathic-membranous-glomerulonephritis-by-using-rituximab
#9
Ivana Dedinská, Daniel Svetlík, Katarina Adamicova, Katarina Machalekova, Pavel Makovicky, Alena Jezikova, Ludovít Laca, Juraj Miklusica, Peter Galajda, Marian Mokan
Treatment of retroperitoneal fibrosis usually involves corticosteroids with or without other immunomodulating medications or tamoxifen.  Rituximab, a monoclonal antibody that specifically targets CD20 on the surface of B-cells, is effective in achieving complete remission of proteinuria in patients with idiopathic membranous nephropathy. We describe a case of a 45 years old man with idiopathic membranous glomerulonephritis (with proteinuria of more than 30 grams/24 hours) and simultaneously with idiopathic retroperitoneal fibrosis (with large number of cells CD20 in the histologic image)...
September 2016: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/27721232/restoration-of-mimecan-expression-by-grape-seed-procyanidin-b2-through-regulation-of-nuclear-factor-kappab-in-mice-with-diabetic-nephropathy
#10
Yi Zhou, Bao-Ying Li, Xiao-Li Li, Ya-Juan Wang, Zhen Zhang, Fei Pei, Quan-Zhen Wang, Jun Zhang, Ya-Wei Cai, Mei Cheng, Hai-Qing Gao
Grape seed procyanidin B2 (GSPB2) exerts a variety of potent protective pharmacological effects on diabetic complications. The renal protective effects of GSPB2 and the target protein mimecan regulated by GSPB2, discovered in a previous quantitative proteomic analysis, were assessed in mice with diabetic nephropathy Twenty-four db/db mice were divided into 2 groups of the vehicle-treated and GSPB2-treated (30 mg/kg/d) diabetic groups. All animals were observed for 10 weeks. Treatment with GSPB2 resulted in an improvement in body weight increase and serum levels of triglyceride, total cholesterol, advanced glycation end products, and urinary albumin excretion in comparison with the vehicle-treated diabetic mice (P < ...
September 2016: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/27706190/influence-of-different-levels-of-lipoic-acid-synthase-gene-expression-on-diabetic-nephropathy
#11
Longquan Xu, Sylvia Hiller, Stephen Simington, Volker Nickeleit, Nobuyo Maeda, Leighton R James, Xianwen Yi
Oxidative stress is implicated in the pathogenesis of diabetic nephropathy (DN) but outcomes of many clinical trials are controversial. To define the role of antioxidants in kidney protection during the development of diabetic nephropathy, we have generated a novel genetic antioxidant mouse model with over- or under-expression of lipoic acid synthase gene (Lias). These models have been mated with Ins2Akita/+ mice, a type I diabetic mouse model. We compare the major pathologic changes and oxidative stress status in two new strains of the mice with controls...
2016: PloS One
https://www.readbyqxmd.com/read/27701137/oxidative-stress-histopathological-and-electron-microscopic-alterations-induced-by-dimethylnitrosamine-in-renal-male-mice-and-the-protective-effect-of-%C3%AE-lipoic-acid
#12
Reham Z Hamza, Hayat A A Ismail, Nahla S El-Shenawy
BACKGROUND: Dimethylnitrosamine (DMN) is a waste product of several industrial processes. Alpha-lipoic acid (ALA) is a vitamin-like chemical also called as an antioxidant. Therefore, the study was designed to investigate the potential benefits of ALA in reducing the nephropathy of DMN in male mice. METHODS: Animals were divided into 6 groups (n=8) and received their treatment for 4 weeks as follows: groups 1-4 served as control, ALA-treatment (16.12 mg/kg), DMN low dose treatment and DMN high dose treatment, respectively...
October 4, 2016: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/27692613/-membranous-nephropathy-diagnosis-new-insights-in-pathophysiology-and-therapeutic-approach
#13
K Dahan
Membranous nephropathy (MN) accounts for about 20% of cases of nephrotic syndrome in the adult. Thickening of glomerular capillary walls results from subepithelial formation of immune deposits containing IgG and the membrane attack complex of complement, which is the major mediator of proteinuria, and antigens. Idiopathic forms of MN (IMN) represent 70 to 80% of all cases. A major breakthrough was the identification of the podocyte antigen PLA2R as the target of circulating antibodies in about 70% of IMN, which confirmed that the disease was auto-immune in nature...
May 25, 2016: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/27684203/how-to-study-basement-membrane-stiffness-as-a-biophysical-trigger-in-prostate-cancer-and-other-age-related-pathologies-or-metabolic-diseases
#14
Mercedes Rodriguez-Teja, Claudia Breit, Mitchell Clarke, Kamil Talar, Kai Wang, Mohammad A Mohammad, Sage Pickwell, Guillermina Etchandy, Graeme J Stasiuk, Justin Sturge
Here we describe a protocol that can be used to study the biophysical microenvironment related to increased thickness and stiffness of the basement membrane (BM) during age-related pathologies and metabolic disorders (e.g. cancer, diabetes, microvascular disease, retinopathy, nephropathy and neuropathy). The premise of the model is non-enzymatic crosslinking of reconstituted BM (rBM) matrix by treatment with glycolaldehyde (GLA) to promote advanced glycation endproduct (AGE) generation via the Maillard reaction...
September 20, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27676651/rituximab-in-membranous-nephropathy-not-all-studies-are-created-equal
#15
Paolo Cravedi
Many prospective studies and a recent randomized controlled trial have shown that the B-cell-depleting monoclonal antibody, rituximab, safely promotes the remission of nephrotic syndrome in approximately 65% of patients with membranous nephropathy (MN). Mechanistic studies have indicated that rituximab-induced proteinuria reduction is associated with clearance of anti-podocyte antigens phospholipase 2 receptor autoantibodies and subepithelial immune complexes, the hallmarks of the disease. A recently published study reported results which, at first sight, looked less favorable and implied that, due to a publication bias against negative results, the efficacy of rituximab in MN might be overestimated...
September 28, 2016: Nephron
https://www.readbyqxmd.com/read/27648410/immunofluorescence-on-paraffin-embedded-renal-biopsies-experience-of-a-tertiary-care-center-with-review-of-literature
#16
Geetika Singh, Lavleen Singh, Ranajoy Ghosh, Devajit Nath, Amit Kumar Dinda
AIM: To describe the technique of immunofluorescence on paraffin embedded tissue sections and discuss the potential pitfalls with an in depth review of literature. METHODS: Immunofluorescence is integral to diagnostic renal pathology. Immunofluorescence on paraffin embedded renal biopsies (IF-P) after enzyme treatment has been described in literature, however has not found widespread use in renal pathology laboratories. In our laboratory proteinase K digestion of paraffin embedded renal biopsy material was standardized and applied prospectively in cases where immunofluorescence on fresh frozen tissue was non contributory or not possible...
September 6, 2016: World Journal of Nephrology
https://www.readbyqxmd.com/read/27646819/current-treatments-for-renal-failure-due-to-multiple-myeloma
#17
Maria Gavriatopoulou, Evangelos Terpos, Efstathios Kastritis, Meletios A Dimopoulos
INTRODUCTION: Renal impairment (RI) is one of the most common complication of multiple myeloma (MM). RI is present in almost 20% of MM patients at diagnosis and in 40%-50% of patients during the course of their disease. AREAS COVERED: Biology along with tools for diagnosis and management of RI are reported in this paper. Papers published in PubMed and reported abstracts up to May 2016 were used. EXPERT OPINION: Moderate and severe RI increases the risk of early death; thus rapid intervention and initiation of anti-myeloma treatment is essential and improves renal outcomes in RI patients...
September 27, 2016: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/27646575/membranous-nephropathy-in-the-kidney-allograft
#18
REVIEW
Edward J Filippone, John L Farber
Membranous nephropathy (MN) may occur in a kidney transplant as recurrence of the original disease (rMN) or as a de novo MN (dnMN). rMN often occurs early, within the first year, and often in a mild or subclinical fashion. Recurrence cannot be predicted by clinical features at the time of transplantation. The natural history is increasing proteinuria over time, with less chance for spontaneous remission compared to primary MN (pMN). Antiphospholipase A2 receptor (PLA2R) antibodies should be evaluated in all patients with pMN at the time of transplantation and serially...
November 2016: Clinical Transplantation
https://www.readbyqxmd.com/read/27621641/rituximab-use-in-adult-primary-glomerulopathy-where-is-the-evidence
#19
REVIEW
Samir G Mallat, Houssam S Itani, Rana M Abou-Mrad, Rima Abou Arkoub, Bassem Y Tanios
Rituximab is a chimeric anti-CD20 antibody that results in depletion of B-cell lymphocytes. It is currently used in the treatment of a variety of autoimmune diseases, in addition to CD20-positive lymphomas. The use of rituximab in the treatment of the adult primary glomerular diseases has emerged recently, although not yet established as first-line therapy in international guidelines. In patients with steroid-dependent minimal change disease or frequently relapsing disease, and in patients with idiopathic membranous nephropathy (IMN), several retrospective and prospective studies support the use of rituximab to induce remission, whereas in idiopathic focal and segmental glomerulosclerosis (FSGS), the use of rituximab has resulted in variable results...
2016: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/27612997/hyperoxaluria-requires-tnf-receptors-to-initiate-crystal-adhesion-and-kidney-stone-disease
#20
Shrikant R Mulay, Jonathan N Eberhard, Jyaysi Desai, Julian A Marschner, Santhosh V R Kumar, Marc Weidenbusch, Melissa Grigorescu, Maciej Lech, Nuru Eltrich, Lisa Müller, Wolfgang Hans, Martin Hrabě de Angelis, Volker Vielhauer, Bernd Hoppe, John Asplin, Nicolai Burzlaff, Martin Herrmann, Andrew Evan, Hans-Joachim Anders
Intrarenal crystals trigger inflammation and renal cell necroptosis, processes that involve TNF receptor (TNFR) signaling. Here, we tested the hypothesis that TNFRs also have a direct role in tubular crystal deposition and progression of hyperoxaluria-related CKD. Immunohistochemical analysis revealed upregulated tubular expression of TNFR1 and TNFR2 in human and murine kidneys with calcium oxalate (CaOx) nephrocalcinosis-related CKD compared with controls. Western blot and mRNA expression analyses in mice yielded consistent data...
September 9, 2016: Journal of the American Society of Nephrology: JASN
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