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Membranous nephritis

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https://www.readbyqxmd.com/read/27920570/formation-of-tight-junctions-between-neighboring-podocytes-is-an-early-ultrastructural-feature-in-experimental-crescentic-glomerulonephritis
#1
Lena Succar, Ross A Boadle, David C Harris, Gopala K Rangan
PURPOSE: In crescentic glomerulonephritis (CGN), the development of cellular bridges between podocytes and parietal epithelial cells (PECs) triggers glomerular crescent formation. However, the sequential changes in glomerular ultrastructure in CGN are not well defined. This study investigated the time course of glomerular ultrastructure in experimental CGN. METHODS: Transmission electron microscopy (TEM) was performed using kidney samples from rats with nephrotoxic serum nephritis (NSN) from day 1 to day 14...
2016: International Journal of Nephrology and Renovascular Disease
https://www.readbyqxmd.com/read/27899391/atypical-presentation-of-anti-gbm-nephritis-in-a-90-year-old-patient
#2
Julie Omolola Okiro, Chaudhry Adeel Ebad, Amjad Zaman Khan
A 90-year-old woman who had bloody diarrhoea, nausea, weakness and reduced urine output was found to have acute kidney injury. Her inflammatory markers were raised and her chest X-ray suggested an inflammatory process. She was initially suspected to have acute kidney injury secondary to dehydration and sepsis but when her autoimmune screen returned positive for antiglomerular basement membrane antibodies our diagnosis and management strategy was reconsidered. This is a case report of Goodpasture disease presenting in an elderly patient...
November 29, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27884116/kidney-disease-in-the-elderly-biopsy-based-data-from-14-renal-centers-in-poland
#3
Agnieszka Perkowska-Ptasinska, Dominika Deborska-Materkowska, Artur Bartczak, Tomasz Stompor, Tomasz Liberek, Barbara Bullo-Piontecka, Anna Wasinska, Agnieszka Serwacka, Marian Klinger, Jolanta Chyl, Michal Kuriga, Robert Malecki, Krzysztof Marczewski, Bogdan Hryniewicz, Tadeusz Gregorczyk, Monika Wieliczko, Stanislaw Niemczyk, Olga Rostkowska, Leszek Paczek, Magdalena Durlik
BACKGROUND: Longer life expectancy is associated with an increasing prevalence of kidney disease. Aging itself may cause renal damage, but the spectrum of kidney disorders that affect elderly patients is diverse. Few studies, mostly form US, Asia and West Europe found differences in the prevalence of some types of kidney diseases between elderly and younger patients based on renal biopsy findings, with varied proportion between glomerulopathies and arterionephrosclerosis as a dominant injury found...
November 25, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27871079/triptolide-attenuates-inflammatory-response-in-membranous-glomerulo-nephritis-rat-via-downregulation-of-nf-%C3%AE%C2%BAb-signaling-pathway
#4
Ying Zhou, Yan Hong, Haihua Huang
BACKGROUND/AIMS: Triptolide (TPL), a main active ingredient of Tripterygium wilfordii has been shown to exert anti-inflammatory effect. The role of TPL on glomerular diseases remains unclear. METHODS: This study aims to investigate the potential anti-inflammatory effect of TPL in rats with membranous glomerulonephritis (MGN). RESULTS: Our data showed that the pathological kidney damage was significantly alleviated by TPL treatment in MGN rats...
November 23, 2016: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/27864659/immune-complexes-and-complexity-investigating-mechanisms-of-renal-disease
#5
Jonathan A Lindquist, Josephine Hildebrandt, Lars Philipsen, Peter R Mertens
The deposition of immune complexes is the causal factor in distinct renal pathologies, e.g., lupus nephritis and membranous nephritis. The location of these deposits within a tissue biopsy is often the key to establishing a diagnosis. However, how immune complexes come to be deposited below the vascular endothelium was, until now, a mystery, as was their contribution to inducing inflammation. A recent paper in Cell by Stamatiades et al. (Cell 164(4):991-1003, 2016) demonstrates the active transport of immune complexes by the vascular endothelial cells and an Fc receptor-dependent uptake by tissue-resident macrophages...
November 18, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27821911/acute-alloxan-toxicity-causes-granulomatous-tubulointerstitial-nephritis-with-severe-mineralization
#6
Lianshan Zhang, Yui Terayama, Taiki Nishimoto, Yasushi Kodama, Kiyokazu Ozaki
Alloxan had been recognized as having a direct nephrotoxic effect different from its diabetogenic action. We encountered previously unreported granulomatous tubulointerstitial nephritis with severe luminal and interstitial mineralization in one diabetic rat after one week of alloxan administration. Histopathologically, many dilated and occluded proximal and distal tubules were segmentally observed in the cortex and outer medulla. The tubular lumen contained minerals and cell debris. Tubular epithelial cells were degenerated and piled up, and they protruded into the lumen, where they enveloped minerals...
October 2016: Journal of Toxicologic Pathology
https://www.readbyqxmd.com/read/27818460/different-expression-patterns-of-toll-like-receptor-mrnas-in-blood-mononuclear-cells-of-iga-nephropathy-and-iga-vasculitis-with-nephritis
#7
Ayano Saito, Atsushi Komatsuda, Hajime Kaga, Ryuta Sato, Masaru Togashi, Shin Okuyama, Hideki Wakui, Naoto Takahashi
Mucosal immunity may play a key role in IgA nephropathy (IgAN) and IgA vasculitis with nephritis (IgAVN). IgAVN is characterized by the presence of non-thrombocytopenic palpable purpura, associated with glomerulonephritis with IgA-dominant immune deposits. Recent studies have shown the up-regulation of Toll-like receptors (TLRs) in patients with IgAN or IgAVN. Among TLRs that mediate innate immune reactions, TLR2, TLR4, and TRL5 recognize bacterial components, while TLR3, TLR7, and TLR9 recognize viral components...
2016: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27809280/role-of-oxidative-stress-in-drug-induced-kidney-injury
#8
REVIEW
Keiko Hosohata
The kidney plays a primary role in maintaining homeostasis and detoxification of numerous hydrophilic xenobiotics as well as endogenous compounds. Because the kidney is exposed to a larger proportion and higher concentration of drugs and toxins than other organs through the secretion of ionic drugs by tubular organic ion transporters across the luminal membranes of renal tubular epithelial cells, and through the reabsorption of filtered toxins into the lumen of the tubule, these cells are at greater risk for injury...
November 1, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27793432/new-onset-of-lupus-nephritis-in-two-patients-with-sle-shortly-after-initiation-of-treatment-with-belimumab
#9
Chrysanthi Staveri, Dimitrios Karokis, Stamatis-Nick C Liossis
PURPOSE: Belimumab is currently approved for the treatment of patients with active SLE despite standard treatment. However, it has not been formally tested for patients with lupus nephritis because such patients had been excluded from the clinical trials. In this report, we present two patients with SLE who developed lupus nephritis de novo shortly after belimumab treatment initiation; both patients improved rapidly upon belimumab discontinuation. RESULTS: The first patient (a 30-year-old female, with a 15-year disease duration, receiving prednisolone, hydroxychloroquine, and azathioprine, with no previous history of nephritis that was repeatedly anti-dsDNA negative) had exacerbation of a facial butterfly-like rash developed after 3 months of belimumab treatment initiation...
September 28, 2016: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/27788140/the-level-of-iga-antibodies-to-endothelial-cells-correlates-with-histological-evidence-of-disease-activity-in-patients-with-lupus-nephritis
#10
Ayako Kondo, Kazuo Takahashi, Tomohiro Mizuno, Akihiro Kato, Daisuke Hirano, Naoki Yamamoto, Hiroki Hayashi, Shigehisa Koide, Hiroshi Takahashi, Midori Hasegawa, Yoshiyuki Hiki, Shunji Yoshida, Keiji Miura, Yukio Yuzawa
Anti-endothelial cell antibodies (AECA) are frequently detected in patients with systemic lupus erythematosus (SLE), but their pathological role remains unclear. We recently developed a solubilized cell surface protein capture enzyme-linked immunosorbent assay (CSP-ELISA) to detect antibodies against membrane proteins involved in autoimmune reactions. In this study, sera from 51 patients with biopsy-proven lupus nephritis (LN), 25 with SLE without renal involvement (non-LN SLE), 42 disease control (DC) subjects, and 80 healthy control (HC) subjects were tested for IgG- and IgA-AECA for human umbilical vein endothelial cells (HUVEC) and human glomerular EC (HGEC) by using CSP-ELISA...
2016: PloS One
https://www.readbyqxmd.com/read/27785920/a-case-of-igg4-related-tubulointerstitial-nephritis-and-membranous-glomerulonephritis-during-the-clinical-course-of-gastric-cancer-imaging-features-of-igg4-related-kidney-disease
#11
Shigeto Horita, Hiroshi Fujii, Ichiro Mizushima, Yuhei Fujisawa, Satoshi Hara, Kazunori Yamada, Dai Inoue, Kenichi Nakajima, Kenichi Harada, Mitsuhiro Kawano
We describe an 81-year-old man with immunoglobulin G4-related disease (IgG4-RD) presenting with submandibular gland, lymph node, lung, kidney, aortic wall, and prostate lesions with concomitant gastric cancer. After curative surgical treatment of the gastric cancer, corticosteroid therapy for progressively decreasing renal function was started. Before starting steroid therapy, fluorodeoxyglucose positron emission tomography-computed tomography revealed multiple lesions of IgG4-RD but no metastasis of the cancer...
October 27, 2016: Modern Rheumatology
https://www.readbyqxmd.com/read/27780843/binding-of-anti-dsdna-antibodies-to-proximal-tubular-epithelial-cells-contribute-s-to-renal-tubulo-interstitial-inflammation
#12
Susan Yung, Claudia Yc Ng, Kin Yi Au, Kwok Fan Cheung, Qing Zhang, Chenzhu Zhang, Desmond Yh Yap, Mel Km Chau, Tak Mao Chan
Immune deposits are often observed along the tubular basement membrane in patients with lupus nephritis, but the role of anti-dsDNA antibody deposition on tubulo-interstitial inflammation remains to be investigated. We examined the effect of human polyclonal anti-dsDNA antibodies on inflammatory processes in cultured proximal renal tubular epithelial cells (HK-2 cells) and their association with serum levels of IL-6, IL-8 and MCP-1 in patients. Binding of anti-dsDNA antibodies to HK-2 cells was investigated by cellular ELISA, flow cytometry and immunohistochemistry...
October 25, 2016: Clinical Science (1979-)
https://www.readbyqxmd.com/read/27769947/chemical-composition-antibacterial-activity-and-related-mechanism-of-the-essential-oil-from-the-leaves-of-juniperus-rigida-sieb-et-zucc-against-klebsiella-pneumoniae
#13
Xiaxia Meng, Dengwu Li, Dan Zhou, Dongmei Wang, Qiaoxiao Liu, Sufang Fan
ETHNOPHARMACOLOGICAL RELEVANCE: Juniperus rigida is used as Tibetan and Mongolian medicine in China for the treatment of rheumatoid arthritis, nephritis, brucellosis and other various inflammatory diseases. AIM OF THE STUDY: To evaluate antibacterial potential of essential oils from J. rigida leaves against Klebsiella pneumoniae and to examine its possible related mechanisms. The study was undertaken in order to scientifically validate the traditional use of J. rigida...
October 18, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27752010/a-clinicopathologic-study-of-glomerular-disease-a-single-center-five-year-retrospective-study-from-northwest-india
#14
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
https://www.readbyqxmd.com/read/27707584/epithelial-mesenchymal-transition-in-pediatric-nephropathies
#15
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...
December 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27691976/nephropathies-in-the-european-captive-cheetah-acinonyx-jubatus-population
#16
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
https://www.readbyqxmd.com/read/27667580/insights-into-the-pathogenesis-of-mycoplasma-pneumoniae-review
#17
Jun He, Mihua Liu, Zhufeng Ye, Tianping Tan, Xinghui Liu, Xiaoxing You, Yanhua Zeng, Yimou Wu
Mycoplasma are the smallest prokaryotic microbes present in nature. These wall‑less, malleable organisms can pass through cell filters, and grow and propagate under cell‑free conditions in vitro. Of the pathogenic Mycoplasma Mycoplasma pneumoniae has been examined the most. In addition to primary atypical pneumonia and community‑acquired pneumonia with predominantly respiratory symptoms, M. pneumoniae can also induce autoimmune hemolytic anemia and other diseases in the blood, cardiovascular system, gastrointestinal tract and skin, and can induce pericarditis, myocarditis, nephritis and meningitis...
November 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27663040/membranous-lupus-nephritis-the-same-but-different
#18
Frank Ward, Joanne M Bargman
Membranous lupus nephritis (MLN) has a favorable prognosis compared to proliferative lupus nephritis (PLN) or combined MLN/PLN, although a significant proportion of cases will progress to end-stage kidney disease. There is considerable morbidity associated with thrombotic complications and treatment. Nondirected care includes renin-angiotensin-aldosterone system blockade, cardiovascular risk management, and antimalarial agents. There may be a role for corticosteroid monotherapy in some patients, but this requires further investigation...
September 20, 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27648410/immunofluorescence-on-paraffin-embedded-renal-biopsies-experience-of-a-tertiary-care-center-with-review-of-literature
#19
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/27630215/anti-c1q-autoantibodies-from-patients-with-systemic-lupus-erythematosus-induce-c1q-production-by-macrophages
#20
Sophia Thanei, Marten Trendelenburg
Antibodies against C1q (anti-C1q) are frequently found in patients with systemic lupus erythematosus (SLE). The anti-C1q antibodies strongly correlate with the occurrence of lupus nephritis and low-circulating C1q levels. Previous studies have demonstrated that myeloid cells, i.e., dendritic cells and macrophages, are a major source of C1q. However, a direct effect of anti-C1q on C1q secretion by macrophages has not yet been established. In the present study, we investigated the C1q secretion profile of in vitro human monocyte-derived macrophages (HMDMs) obtained from healthy donors and from patients with SLE...
September 14, 2016: Journal of Leukocyte Biology
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