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Membranous nephropathy

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https://www.readbyqxmd.com/read/28102816/clinicopathological-features-diagnosis-and-treatment-of-iga-nephropathy-with-minimal-change-disease-related-to-exposure-to-mercury-containing-cosmetics-a-case-report%C3%A2
#1
Hong-Xin Niu, Shen-Heng Li, Hong-Ying Li, Yi-Hua Chen, Wei-Wei Liu, Pei-Lin Li, Hai-Bo Long
AIM: Membranous nephropathy and minimal change disease (MCD) have been involved in mercury-induced nephrotic syndrome. IgA nephropathy is not known to be a common pathological type. In the present article, we report a case of IgA nephropathy with MCD following exposure to mercury-containing skin lightening cream. MATERIAL AND METHODS: The patient was a 39-year-old woman who presented with nephrotic syndrome. She had a 6-month history of using as many as 8 kinds of skin-lightening creams, and urinary mercury excretion was high...
January 19, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28098102/evaluation-of-renal-lesions-and-clinicopathologic-correlation-in-rheumatoid-arthritis
#2
Periyasamy Muthukumar, Jeyachandran Dhanapriya, Natarajan Gopalakrishnan, Thanigachalam Dineshkumar, Ramanathan Sakthirajan, T Balasubramaniyan
The most common causes of renal disease in rheumatoid arthritis (RA) are glomerulonephritis (GN), amyloidosis, tubulo-interstitial nephritis, and drug toxicity. Our aim was to evaluate the clinicopathologic correlation of renal lesions and to assess the course and prognosis of renal disease in patients with RA. We conducted a prospective observational study in all adult patients with RA between July 2010 and June 2015. The total number of patients studied was 90, with a female:male ratio of 2.3:1. Mean follow-up duration was 30 ± 6...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28090051/different-effects-of-tolvaptan-in-patients-with-idiopathic-membranous-nephropathy-with-nephrotic-syndrome
#3
Atsushi Tanaka, Tsukasa Nakamura, Eiichi Sato, Yoshihiko Ueda, Koichi Node
This case report discusses the clinical indication for immunosuppressants in patients with idiopathic membranous nephropathy (IMN). Because this disease occasionally shows spontaneous remission, it is necessary to determine the predictive values for a therapeutic effect in order to provide appropriate treatment. Two distinct cases described herein illustrate the different effects of tolvaptan in responders and non-responders, according to the pre-treatment levels of AQP-2 immunostaining in the samples from renal biopsy and urinary levels of AQP-2 and osmolality, suggesting that these values may be useful predictors of response to tolvaptan in patients with nephrotic IMN...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28065518/membranous-nephropathy-integrating-basic-science-into-improved-clinical-management
#4
REVIEW
Daniel C Cattran, Paul E Brenchley
Idiopathic membranous nephropathy (INM) remains a common cause of the nephrotic syndrome in adults. The autoimmune nature of IMN was clearly delineated in 2009 with the identification of the glomerular-deposited IgG to be a podocyte receptor, phospholipase A2 receptor (PLA2R) in 70% to 75% of cases. This anti-PLA2R autoantibody, predominantly the IgG4 subclass, has been quantitated in serum using an enzyme-linked immunosorbent assay and has been used to aid diagnosis and monitor response to immunosuppressive therapy...
January 5, 2017: Kidney International
https://www.readbyqxmd.com/read/28056860/evaluating-tacrolimus-treatment-in-idiopathic-membranous-nephropathy-in-a-cohort-of-408-patients
#5
Hua-Zhang Qin, Lei Liu, Shao-Shan Liang, Jing-Song Shi, Chun-Xia Zheng, Qing Hou, Ying-Hui Lu, Wei-Bo Le
BACKGROUND: The KDIGO Clinical Practice Guidelines for Glomerulonephritis recommended tacrolimus as an alternative regimen for the initial therapy for Idiopathic membranous nephropathy (IMN), however, large observational studies evaluating tacrolimus treatment in IMN remains rare. METHODS: A total of 408 consecutive IMN patients with nephrotic syndrome who were treated with tacrolimus in Jinling Hospital were included. The effectiveness and safety of tacrolimus treatment in IMN were analyzed in this study...
January 5, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28056338/hanac-col4a1-mutation-in-mice-leads-to-skeletal-muscle-alterations-due-to-a-primary-vascular-defect
#6
Simon Guiraud, Tiffany Migeon, Arnaud Ferry, Zhiyong Chen, Souhila Ouchelouche, Marie-Christine Verpont, Yoshikazu Sado, Valérie Allamand, Pierre Ronco, Emmanuelle Plaisier
Collagen IV is a major component of basement membranes (BMs). The α1(IV) chain, encoded by the COL4A1 gene, is expressed ubiquitously and associates with the α2(IV) chain to form the α1α1α2(IV) heterotrimer. Several COL4A1 mutations affecting a conformational domain containing integrin-binding sites are responsible for the systemic syndrome of hereditary angiopathy, nephropathy, aneurysms, and cramps (HANAC). To analyze the pathophysiology of HANAC, Col4a1 mutant mice bearing the p.Gly498Val mutation were generated...
January 2, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28035718/thsd7a-expression-in-human-cancer
#7
Phillip R Stahl, Elion Hoxha, Thorsten Wiech, Cornelia Schröder, Ronald Simon, Rolf A K Stahl
We recently described a case of a Thrombospondin Type-1 Domain containing 7A (THSD7A) associated membranous nephropathy in a female patient who was synchronously suffering from a THSD7A-positive malignancy. We here investigated the role of THSD7A as a new potential tumor antigen by evaluating over 20,000 tissue spots in more than 70 different tumor entities by immunohistochemistry using tissue microarrays. THSD7A expression was highly variable in different neoplasias with differing staining patterns. Both gain and loss of THSD7A expression compared to expression status in non-tumor tissue were linked to tumor-specific markers in the different tumor entities and were of prognostic value...
December 30, 2016: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28029267/the-pathological-spectrum-associated-with-the-ultrastructural-finding-of-thin-glomerular-basement-membrane-a-tertiary-medical-city-experience-and-review-of-the-literature
#8
Hala Kfoury, Maria Arafah
BACKGROUND: Thin glomerular basement membrane (GBM) has been noted in several glomerular diseases including IgA nephropathy, focal segmental glomerulosclerosis (FSGS), Fabry's disease, and Alport's syndrome. We conducted this study to investigate the pathological ultrastructural spectrum of thin GBMs, to identify associated diseases, and to measure the GBM thickness in thin GBMs in our adult population. MATERIALS AND METHODS: All renal biopsies with thin GBM, diagnosed between 2010 and 2016, were retrieved and reviewed...
December 28, 2016: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28028136/hla-drb1-15-01-and-hla-drb3-02-02-in-pla2r-related-membranous-nephropathy
#9
Wei-Bo Le, Jing-Song Shi, Tao Zhang, Lei Liu, Hua-Zhang Qin, ShaoShan Liang, Yuan-Wei Zhang, Cun-Xia Zheng, Song Jiang, Wei-Song Qin, Hai-Tao Zhang, Zhi-Hong Liu
Idiopathic membranous nephropathy (MN) is associated with HLA; however, the HLA allele involved remains unknown. To identify the HLA risk alleles associated with phospholipase A2 receptor (PLA2R)-related MN in the Chinese population, we sequenced the entire MHC region in DNA samples from 99 patients with PLA2R-related MN, 50 patients with PLA2R-unrelated MN, and 100 healthy subjects. Two HLA risk alleles, HLA-DRB1*15:01 and HLA-DRB3*02:02, independently and strongly associated with an increased risk of PLA2R-related MN...
December 27, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28004272/rice-bran-protein-hydrolysates-attenuate-diabetic-nephropathy-in-diabetic-animal-model
#10
Kampeebhorn Boonloh, Eun Soo Lee, Hong Min Kim, Mi Hye Kwon, You Mi Kim, Patchareewan Pannangpetch, Bunkerd Kongyingyoes, Upa Kukongviriyapan, Supawan Thawornchinsombut, Eun Young Lee, Veerapol Kukongviriyapan, Choon Hee Chung
INTRODUCTION: Diabetic nephropathy (DN) is an important microvascular complication of uncontrolled diabetes. The features of DN include albuminuria, extracellular matrix alterations, and progressive renal insufficiency. Rice bran protein hydrolysates (RBPs) have been reported to have antihyperglycemic, lipid-lowering, and anti-inflammatory effects in diabetic rats. Our study was to investigate the renoprotective effects of RBP in diabetic animals and mesangial cultured cells. METHODS: Eight-week-old male db/m and db/db mice were orally treated with tap water or RBP (100 or 500 mg/kg/day) for 8 weeks...
December 21, 2016: European Journal of Nutrition
https://www.readbyqxmd.com/read/27999961/long-term-outcomes-of-initial-therapy-for-idiopathic-membranous-nephropathy
#11
Masayo Sato, Takashi Takei, Takahito Moriyama, Mitsuyo Itabashi, Kosaku Nitta
BACKGROUND: The objective of this study is to determine whether initial steroid therapy is actually effective for the treatment of iMN, and we examined a 40% reduction in estimated glomerular filtration rate (eGFR) and remission rates. METHODS: This was a retrospective study between 1993 and 2013. First, we divided patients with iMN having a urinary protein level of ≥1 g/gCre into two groups: those who had received steroid therapy (Group S1; n = 52) within 6 months of diagnosis and those who had received supportive therapy (Group H1; n = 31)...
December 20, 2016: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/27994855/treatment-with-rituximab-in-idiopathic-membranous-nephropathy
#12
Marco Fiorentino, Francesco Tondolo, Francesca Bruno, Barbara Infante, Giuseppe Grandaliano, Loreto Gesualdo, Carlo Manno
BACKGROUND: Rituximab represents a valid therapeutic option to induce remission in patients with primary glomerulonephritis. Despite several studies proving its efficacy in improving outcomes in patients with membranous nephropathy (MN), its role in therapeutic protocols is not yet defined. METHODS: We studied 38 patients with idiopathic MN treated with rituximab (in 13 patients as first-line therapy, in the remaining 25 after conventional immunosuppressive therapy)...
December 2016: Clinical Kidney Journal
https://www.readbyqxmd.com/read/27988512/urine-epidermal-growth-factor-monocyte-chemoattractant-protein-1-or-their-ratio-as-biomarkers-for-interstitial-fibrosis-and-tubular-atrophy-in-primary-glomerulonephritis
#13
Supanat Worawichawong, Suchin Worawichawong, Piyanuch Radinahamed, Dittapol Muntham, Nuankanya Sathirapongsasuti, Arkom Nongnuch, Montira Assanatham, Chagriya Kitiyakara
BACKGROUND/AIMS: The degree of tubular atrophy and interstitial fibrosis (IFTA) is an important prognostic factor in glomerulonephritis. Imbalance between pro-inflammatory cytokines such as monocyte chemoattractant protein- 1 (MCP-1) and protective cytokines such as epidermal growth factor (EGF) likely determine IFTA severity. In separate studies, elevated MCP-1 and decreased EGF have been shown to be associated with IFTA severity. In this study, we aim to evaluate the predictive value of urinary EGF/MCP-1 ratio compared to each biomarker individually for moderate to severe IFTA in primary glomerulonephritis (GN)...
2016: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/27988429/calcineurin-inhibitors-versus-cyclophosphamide-for-idiopathic-membranous-nephropathy-a-systematic-review-and-meta-analysis-of-21-clinical-trials
#14
REVIEW
Ting Ting Qiu, Chao Zhang, Hong Wei Zhao, Jun Wen Zhou
OBJECTIVE: To compare the efficacy and safety of calcineurin inhibitors (CNIs) with cyclophosphamide (CTX) in the treatment of idiopathic membranous nephropathy (IMN). METHODS: A literature search was carried out using PubMed, EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL), and three Chinese databases (WanFang Data, Chongqing VIP and China National Knowledge Infrastructure) from inception through June 2016. Randomized controlled trials (RCTs) comparing the efficacy and safety of CNIs with CTX in IMN patients were included...
December 15, 2016: Autoimmunity Reviews
https://www.readbyqxmd.com/read/27974710/clinical-predictors-of-response-to-prednisone-plus-cyclophosphamide-in-patients-with-idiopathic-membranous-nephropathy
#15
Shu Li, Ling Wang, Minfang Zhang, Wenyan Zhou, Wei Fang, Qin Wang, Chaojun Qi, Shan Mou, Xinghua Shao, Zhaohui Ni
BACKGROUND: Complete remission (CR) and partial remission (PR) are beneficial to the long-term outcome of patients with idiopathic membranous nephropathy (iMN). However, we are lacking in studies that evaluate the clinical predictors of response to treatment with prednisone plus cyclophosphamide (CP). The objectives of the study are to identify clinical factors that could predict clinical remission or relapse in patients with iMN who were treated with prednisone plus i.v. CP therapy. METHODS: This retrospective study recruited a total of 102 eligible patients diagnosed with biopsy-proven iMN between January 2010 and December 2013 in our center...
December 15, 2016: Nephron
https://www.readbyqxmd.com/read/27942609/membranous-nephropathy-pilot-study-of-a-novel-regimen-combining-cyclosporine-and-rituximab
#16
Meryl Waldman, Laurence H Beck, Michelle Braun, Kenneth Wilkins, James E Balow, Howard A Austin
INTRODUCTION: There is broad consensus that high grade basal proteinuria and failure to achieve remission of proteinuria are key determinants of adverse renal prognosis in patients with primary membranous nephropathy. Based on the fact that current regimens are not ideal due to short and long-term toxicity and propensity to relapse after treatment withdrawal, we developed a treatment protocol based on a novel combination of rituximab and cyclosporine which targets both the B and T cell limbs of the immune system...
July 2016: KI Reports
https://www.readbyqxmd.com/read/27942176/identification-of-urinary-proteins-potentially-associated-with-diabetic-kidney-disease
#17
R K Marikanty, M K Gupta, S V B Cherukuvada, S S S Kompella, A K Prayaga, S Konda, R V Polisetty, M M Idris, P V Rao, G R Chandak, K V Dakshinamurty
Diabetic nephropathy (DN) is the most common cause of chronic kidney disease. Although several parameters are used to evaluate renal damage, in many instances, there is no pathological change until damage is already advanced. Mass spectrometry-based proteomics is a novel tool to identify newer diagnostic markers. To identify urinary proteins associated with renal complications in diabetes, we collected urine samples from 10 type 2 diabetes patients each with normoalbuminuria, micro- and macro-albuminuria and compared their urinary proteome with that of 10 healthy individuals...
November 2016: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/27934873/high-density-association-mapping-and-interaction-analysis-of-pla2r1-and-hla-regions-with-idiopathic-membranous-nephropathy-in-japanese
#18
Myo Thiri, Kenjiro Honda, Koichi Kashiwase, Akihiko Mabuchi, Hodaka Suzuki, Kimio Watanabe, Masaaki Nakayama, Tsuyoshi Watanabe, Kent Doi, Katsushi Tokunaga, Eisei Noiri
Although recent studies showed anti-PLA2R antibody plays a crucial role in idiopathic membranous nephropathy (IMN), detailed HLA mapping and interaction between the HLA genes and PLA2R1 have not been investigated in IMN. We genotyped across the PLA2R1 gene and the HLA region, using 183 IMN patients and 811 healthy controls. Five SNPs around the PLA2R1 gene were significantly associated with IMN. In addition to the two SNPs previously reported to be strongly associated with IMN, rs3749119 and rs35771982 (OR 3...
December 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921164/m-type-phospholipase-a2-receptor-pla2r-glomerular-staining-in-pediatric-idiopathic-membranous-nephropathy
#19
Shoichiro Kanda, Shigeru Horita, Takeshi Yanagihara, Akira Shimizu, Motoshi Hattori
BACKGROUND: Identifying M-type phospholipase A2 receptor (PLA2R) is a landmark breakthrough for understanding adult idiopathic membranous nephropathy (iMN). However, potential roles for PLA2R in pediatric iMN have not been well investigated. METHODS: A total of 34 pediatric iMN patients who underwent kidney biopsy between 1972 and 2015 were enrolled in this study. The study cohort consisted of 15 children aged from 3 to 9 years and 19 aged from 10 to 15 years...
December 5, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/27920152/toll-like-receptor-9-stimulation-induces-aberrant-expression-of-a-proliferation-inducing-ligand-by-tonsillar-germinal-center-b-cells-in-iga-nephropathy
#20
Masahiro Muto, Benoit Manfroi, Hitoshi Suzuki, Kensuke Joh, Masaaki Nagai, Sachiko Wakai, Christian Righini, Masayuki Maiguma, Shozo Izui, Yasuhiko Tomino, Bertrand Huard, Yusuke Suzuki
The TNF family member a proliferation-inducing ligand (APRIL; also known as TNFSF13), produced by myeloid cells, participates in the generation and survival of antibody-producing plasma cells. We studied the potential role of APRIL in the pathogenesis of IgA nephropathy (IgAN). We found that a significant proportion of germinal centers (GCs) in tonsils of patients with IgAN contained cells aberrantly producing APRIL, contributing to an overall upregulation of tonsillar APRIL expression compared with that in tonsils of control patients with tonsillitis...
December 5, 2016: Journal of the American Society of Nephrology: JASN
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