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therapy membranous nephropathy

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
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
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
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
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
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
Yue Yang, Ye-Ping Ma, Da-Peng Chen, Li Zhuo, Wen-Ge Li
Hepatitis B virus-associated membranous nephropathy (HBV-MN) is the most common renal extra-hepatic manifestation in patients with chronic HBV infection. In September 2015, we searched the MEDLINE, EMBASE, and CENTRAL databases, and the reference lists of retrieved articles, to identify relevant studies. Descriptions of antiviral drugs used to treat HBV-MN were included in our review. Two authors independently screened all relevant articles, extracted data, and assessed the risk of bias. Nine hundred and fifty-four papers have been considered after electronic and manual searching, only five relevant studies were identified...
2016: PloS One
Yue Chen, Ping Li, Chunli Cui, Aihong Yuan, Kun Zhang, Chen Yu
OBJECTIVE: To explore the clinical characteristics, renal histopathological spectrum and prognostic factors of biopsy-proven kidney diseases in the elderly. METHODS: A retrospective observational study was conducted in elderly patients who had received renal biopsies. Demographic, clinical and pathological data at the time of the biopsy were collected from the medical records. Follow-up records and prognostic factors were studied. RESULTS: The elderly (≥60 years) accounted for 74 of 434 (17...
September 5, 2016: Journal of International Medical Research
Wei Zhang, Xiangjun Zhou, Hao Zhang, Qisheng Yao, Yutao Liu, Zheng Dong
Extracellular vesicles (EV) are endogenously produced, membrane-bound vesicles that contain various molecules. Depending on their size and origins, EVs are classified into apoptotic bodies, microvesicles, and exosomes. A fundamental function of EVs is to mediate intercellular communication. In kidneys, recent research has begun to suggest a role of EVs, especially exosomes, in cell-cell communication by transferring proteins, mRNAs, and microRNAs to recipient cells as nanovectors. EVs may mediate the cross-talk between various cell types within kidneys for the maintenance of tissue homeostasis...
August 31, 2016: American Journal of Physiology. Renal Physiology
Hong Liu, Weili Luo, Shaomin Gong, Xiaoqiang Ding
BACKGROUND: Glomerular M-type phospholipase A2 receptor (PLA2 R) is important for diagnosing idiopathic membranous nephropathy (IMN). The relation between glomerular PLA2 R expression and response to treatment remained to explore. AIMS: We conducted the study to explore the positive rate and clinical significance of glomerular M-type PLA2 R in IMN patients. METHODS: 122 IMN patients receiving neither glucocorticoid nor immunosuppressant therapy prior to renal biopsies were included and followed for more than 1 year...
August 24, 2016: Internal Medicine Journal
Ashwani K Gupta, Nader Bahri
BACKGROUND: Neurotoxicity is a common side effect of treatment with calcineurin inhibitors. Tremors are frequently reported as the most common manifestation. Variable presentations can include headaches, seizures, visual hallucinations or blindness. Sixth nerve palsy has been reported in previous cases of bone marrow and cardiac transplant patients receiving calcineurin inhibitors. In many of these previously reported cases, the drug was administered intravenously and very high drug levels were found...
2016: BMC Nephrology
Talal Alfaadhel, Daniel Cattran
BACKGROUND: Idiopathic membranous nephropathy (IMN) is a common cause of nephrotic syndrome (NS) in adults in Western countries. In 2012, the KDIGO (Kidney Disease: Improving Global Outcomes) working group published guidelines for the management of glomerulonephritis, thus providing a template for the treatment of this condition. While being aware of the impact of the clinicians' acumen and that patients may choose a different therapeutic option due to the risks of specific drugs and also of the evolving guidelines, this review details our approach to the management of patients with IMN in a Western center (Toronto)...
September 2015: Kidney Diseases
Jing Xu, Xiaofan Hu, Jingyuan Xie, Nan Chen
BACKGROUND: Membranous nephropathy (MN) is the most common cause of nephrotic syndrome (NS) in adults, accounting for about 20.0% of all NS cases. With an increasing prevalence, especially in the elderly, it has received great attention in Asia. SUMMARY: Recently, the prevalence of idiopathic MN (IMN) has significantly increased among the elderly people in Asia and other places in the world. Although the exact mechanism of IMN remains unveiled, the identification of new antigens such as PLA2R and THSD7A has greatly enhanced our understanding of its pathogenesis...
September 2015: Kidney Diseases
Anne-Els van de Logt, Julia M Hofstra, Jack F Wetzels
INTRODUCTION: Therapy in patients with primary membranous nephropathy is debated. The discovery of anti-PLA2R antibodies provides opportunities for new treatment strategies. AREAS COVERED: The PubMed database and Cochrane library were searched for full-text articles published in English before March 2016. The search terms included 'Glomerulonephritis, Membranous' [MESH], 'membranous glomerulonephritis' [tiab] and, 'idiopathic membranous nephropathy' [tiab] and 'membranous nephropathy' [tiab], in combination with 'Therapeutics' [MESH], 'therapeutic*'[tiab], 'immunosuppression' [MESH] and 'immunosuppression' [tiab]...
September 16, 2016: Expert Review of Clinical Pharmacology
S K Rampelli, N G Rajesh, B H Srinivas, K T Harichandra Kumar, R P Swaminathan, P S Priyamvada
There is limited data on the etiology, clinical and histopathological spectrum and outcomes of crescentic glomerulonephritis (CrGN) in adult Indian population. This prospective study was done to evaluate the etiology, clinicohistological patterns and predictors of outcome of CrGN in South Indian population. All the patients received standard protocol based immunosuppression in addition to supportive care. Immune-complex glomerulonephritis (ICGN) was the most common etiology (n = 31; 77.5%) followed by pauci-immune glomerulonephritis (PauciGN; n = 8; 20%) and anti-glomerular basement membrane disease (n = 1; 2...
July 2016: Indian Journal of Nephrology
Terry King-Wing Ma, Stephen P McAdoo, Frederick Wai-Keung Tam
Spleen tyrosine kinase (Syk), a 72 kDa cytoplasmic non-receptor protein-tyrosine kinase, plays an important role in signal transduction in a variety of cell types. Ever since its discovery in the early 1990s, there has been accumulating evidence to suggest a pathogenic role of Syk in various allergic disorders, autoimmune diseases and malignancies. Additionally, there is emerging data from both pre-clinical and clinical studies that Syk is implicated in the pathogenesis of proliferative glomerulonephritis (GN), including anti-glomerular basement membrane disease, anti-neutrophil cytoplasmic antibody-associated GN, lupus nephritis and immunoglobulin A nephropathy (IgAN)...
2016: Nephron
Juan Manuel Mejía-Vilet, Bertha M Córdova-Sánchez, Norma O Uribe-Uribe, Ricardo Correa-Rotter
Optimal treatment for pure membranous lupus nephritis (MLN) remains unknown. The aim of this study was to evaluate the response to immunosuppressive treatment of Hispanics with pure MLN. This was a retrospective cohort analysis from a tertiary care center. Pure MLN patients were segregated into three groups according to the received induction treatment. All patients received adjunctive steroids. Outcomes included complete remission (CR), partial remission (PR), flare incidence, adverse events, and renal and patient survival...
September 2016: Clinical Rheumatology
Alana M Karp, Rasheed A Gbadegesin
The pathogenesis of childhood-onset nephrotic syndrome (NS), disparity in incidence of NS among races, and variable responses to therapies in children with NS have defied explanation to date. In the last 20 years over 50 genetic causes of steroid-resistant nephrotic syndrome (SRNS) have been identified, and at least two disease loci for two pathologic variants of SRNS (focal segmental glomerulosclerosis and membranous nephropathy) have been defined. However, the genetic causes and risk loci for steroid-sensitive nephrotic syndrome (SSNS) remain elusive, partly because SSNS is relatively rare and also because cases of SSNS vary widely in phenotypic expression over time...
July 29, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Edward J Filippone, Shirley J Dopson, Denise M Rivers, Rebeca D Monk, Suneel M Udani, Golriz Jafari, Solomon C Huang, Arafat Melhem, Bassim Assioun, Paul G Schmitz
BACKGROUND: Adrenocorticotropic hormone is being increasingly studied for treatment of various glomerulopathies, most notably membranous nephropathy. Less data are available regarding its use in idiopathic nephrotic syndrome (INS) secondary to minimal change disease (MCD) or focal segmental glomerulosclerosis (FSGS). We report here our experience with H.P. Acthar(®) Gel (repository corticotropin injection) as first-line or subsequent therapy in patients with INS. METHODS: Data were taken from three patients with MCD and ten patients with FSGS from around the US, who were treated with Acthar Gel as initial or subsequent therapy...
2016: International Medical Case Reports Journal
Gabriella Moroni, Federica Depetri, Lucia Del Vecchio, Beniamina Gallelli, Francesca Raffiotta, Elisa Giglio, Francesca Brunini, Marco D'Amico, Selena Longhi, Antonella Radice, Piergiorgio Messa, Renato Alberto Sinico
BACKGROUND: The optimal dosing and the efficacy of rituximab for primary membranous nephropathy (PMN) has not been established. This multicentric prospective study evaluates the efficacy and safety of low-dose rituximab (RTX) therapy in patients with PMN in clinical practice. METHODS: Thirty-four consecutive patients with PMN and nephrotic syndrome were included and received RTX (375 mg/m(2)) once (18 patients) or twice (16 patients). RTX was the first-line therapy for 19 (56%) and the second line for 15 (44%) patients...
July 6, 2016: Nephrology, Dialysis, Transplantation
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