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Membranous glomerulonephritis

Pankaj Beniwal, Lalit Pursnani, Sanjeev Sharma, R K Garsa, Mohit Mathur, Prasad Dharmendra, Vinay Malhotra, Dhanajai Agarwal
Studies published from centers across India have reported different and contradicting patterns of glomerular disease. In this retrospective study, we report our experience from a Tertiary Care Center in Northwest India. A total of 702 renal biopsies performed between 2008 and 2013 were reviewed of which 80 were excluded from the study because of having insufficient records or if the biopsies were taken from an allograft. The study included 411 males (66.1 %) and 211 females (33.9%) with an age range of 12-70 years (mean 30...
September 2016: Saudi Journal of Kidney Diseases and Transplantation
Naohiro Toda, Hideki Yokoi, Kiyoshi Mori, Masashi Mukoyama
CCN2 has been shown to be closely involved in the progression of renal fibrosis, indicating the potential of CCN2 inhibition as a therapeutic target. Although the examination of the phenotypes of adult CCN2 knockout mice with renal diseases has yielded valuable scientific insights, perinatal death has limited studies of CCN2 in vivo. Conditional knockout technology has become widely used for the deletion of genes in the desired cell populations and time points through the use of cell-specific Cre recombinase-expressing mice...
2017: Methods in Molecular Biology
Mathews V Noble, S Sajeesh, S Renuka, T Kurian
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
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
Laura Penna Rocha, Samuel Cavalcante Xavier, Fernanda Rodrigues Helmo, Juliana Reis Machado, Fernando Silva Ramalho, Marlene Antônia Dos Reis, Rosana Rosa Miranda Corrêa
INTRODUCTION: Epithelial-mesenchymal transition (EMT) is a process in which epithelial cells may express mesenchymal cell markers with subsequent change in their functions, and it may be part of the etiopathogenesis of kidney disease. OBJECTIVE: The aim of this study was to evaluate the immunexpression of some EMT inducers and markers in frequent nephropathies in pediatric patients. METHODS: 59 patients aged 2-18 years old were selected and divided into 6 groups of frequent nephropathies in children and adolescents, as well as one control group...
September 22, 2016: Pathology, Research and Practice
F Alby-Laurent, N Honoré-Goldman, A Cavau, N Bellon, S Allali, V Abadie
INTRODUCTION: Exposure to metallic mercury can cause severe accidental intoxications in children, whose clinical symptoms can vary depending on the route of administration, the dose, as well as the time and duration of the exposure. It has become unusual in France, yet it must be considered when taking a patient's medical history in cases of multisystemic involvement without a clear explanation. CLINICAL CASE: We report the case of a 12-year-old patient hospitalized because of a cough, poor general condition, chills, night sweats, psychomotor retardation, and skin lesions that had been developing for several weeks...
September 27, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
Angelika Url, Verena Krutak, Anna Kübber-Heiss, Sonja Chvala-Mannsberger, Nadia Robert, Nora Dinhopl, Peter Schmidt, Chris Walzer
According to previous studies in captive cheetah ( Acinonyx jubatus ) populations, one of the most threatening diseases besides amyloidosis, myelopathy, veno occlusive disease, and gastritis, is renal failure. Contrary to captive cheetahs in North America and South Africa, morphological data concerning renal lesions in the cheetah European Endangered Species Program (EEP) are lacking. This study details the histological characterization as well as immunohistochemical and morphometrical analysis of nephropathies in 35 captive cheetahs from the EEP, which were necropsied between 1985 and 2003...
September 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Nobuya Yoshida, Denis Comte, Masayuki Mizui, Kotaro Otomo, Florencia Rosetti, Tanya N Mayadas, José C Crispín, Sean J Bradley, Tomohiro Koga, Michihito Kono, Maria P Karampetsou, Vasileios C Kyttaris, Klaus Tenbrock, George C Tsokos
Inducible cAMP early repressor (ICER) has been described as a transcriptional repressor isoform of the cAMP response element modulator (CREM). Here we report that ICER is predominantly expressed in Th17 cells through the IL-6-STAT3 pathway and binds to the Il17a promoter, where it facilitates the accumulation of the canonical enhancer RORγt. In vitro differentiation from naive ICER/CREM-deficient CD4(+) T cells to Th17 cells is impaired but can be rescued by forced overexpression of ICER. Consistent with a role of Th17 cells in autoimmune and inflammatory diseases, ICER/CREM-deficient B6...
2016: Nature Communications
Turki Al Hussain, Hadeel Al Mana, Maged H Hussein, Mohammed Akhtar
The glomerulus has 3 resident cells namely mesangial cells that produce the mesangial matrix, endothelial cells that line the glomerular capillaries, and podocytes that cover the outer surface of the glomerular basement membrane. Parietal epithelial cells (PrECs), which line the Bowman's capsule are not part of the glomerular tuft but may have an important role in the normal function of the glomerulus. A significant progress has been made in recent years regarding our understanding of the role and function of these cells in normal kidney and in kidneys with various types of glomerulopathy...
September 26, 2016: Advances in Anatomic Pathology
Alastair J Rankin, Emily P McQuarrie, Jonathan G Fox, Colin C Geddes, Bruce MacKinnon
BACKGROUND: The reported incidence of venous thromboembolism (VTE) in patients with nephrotic syndrome (NS) varies widely, as does the approach to prophylactic anticoagulation. We aimed to assess the incidence of VTE in patients with primary NS in order to inform a sample size calculation to determine if a future clinical trial will ever be feasible. METHODS: All adults undergoing native renal biopsy for NS between 2008 and 2013 yielding a diagnosis of primary glomerulonephritis were identified...
September 24, 2016: Nephron
Maria G Detsika, Pu Duann, Vassilios Atsaves, Apostolos Papalois, Elias A Lianos
Complement-activation controllers, including decay accelerating factor (DAF), are gaining emphasis as they minimize injury in various dysregulated complement-activation disorders, including glomerulopathies. Heme oxygenase (HO)-1 overexpression or induction has been shown to attenuate injury in complement-dependent models of glomerulonephritis. This study investigated whether up-regulation of DAF by heme oxygenase 1 (HO-1) is an underlying mechanism by using Hmox-1-deficient rats (Hmox1(+/-); Hmox1(-/-)) or rats with Hmox-1 overexpression targeted to glomerular epithelial cells (GEC(Hmox-1)), which are particularly vulnerable to complement-mediated injury owing to their terminally differentiated nature...
September 20, 2016: American Journal of Pathology
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
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
Ju Hyung Kang, Haing Woon Baik, Seung-Min Yoo, Joo Heon Kim, Hae Il Cheong, Chung-Gyu Park, Hee Gyung Kang, Il-Soo Ha
BACKGROUND: Renin, in addition to its activation of the renin-angiotensin system, binds to the (pro)renin receptor (PRR) and triggers inflammatory and fibrogenic signaling in tissue. In addition, aliskiren, a direct renin inhibitor, has been shown to affect IgG metabolism by altering PRR and neonatal Fc receptors (FcRns). METHODS: We investigated the effect of aliskiren on proteinuria, glomerular extracellular matrix, expressions of fibronectin, transforming growth factor β1 (TGF-β1), PRR, FcRn and renal metabolism of IgG in a mice model of anti-glomerular basement membrane glomerulonephritis (anti-GBM GN)...
August 25, 2016: Nephron
Yuan Yang, Min Luo, Li Xiao, Xue-Jing Zhu, Chang Wang, Xiao Fu, Shu-Guang Yuan, Fang Xiao, Hong Liu, Zheng Dong, Fu-You Liu, Lin Sun
In the clinic, the pathological types of chronic kidney diseases (CKD) are considered references for choosing treatment protocols. From a statistical viewpoint, a non-invasive method to predict pathological types of CKD is a focus of our work. In the current study, following a frequency analysis of the clinical indices of 588 CKD patients in the department of nephrology, a third-grade class-A hospital, a novel theory is proposed: "bi-directional cumulative probability dichotomy". Further, two models for the prediction and differential diagnosis of CKD pathological type are established...
2016: Scientific Reports
Mariachiara Mei, Paolo Menè, Antonella Stoppacciaro
The aim of this retrospective study is to investigate the prevalence and pathological features of kidney inflammatory nephropathies diagnosed in Sant'Andrea Hospital, from January 2003 to April 2015. In this period, 246 kidney biopsies have been diagnosed in our Hospital. Excluding cases of kidney neoplasms and non-diagnostic samples, 195 cases were reviewed. Primary glomerulonephritis (GN) is the most common diagnosis. Among these, Membranous GN represents the majority of cases (20.4%), followed by IgA Nephropathy (12...
July 2016: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
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
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
N Dikopoulos, E Zizer
Chronic hepatitis C infection may be associated with several features of autoimmunity (i. e., detection of different kinds of autoantibodies in the serum). Hepatitis C is also associated with different autoimmune diseases, such as autoimmune thyroiditis, lichen ruber planus, and membranous glomerulonephritis being the most relevant. There are very few cases of a coincidence of chronic hepatitis C with an autoimmune hepatitis, that is usually diagnosed by detection of specific autoantibodies and typical histological features...
August 2016: Zeitschrift Für Gastroenterologie
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