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Glomerulonephrities

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https://www.readbyqxmd.com/read/28929317/risk-alleles-for-iga-nephropathy-associated-snps-conferred-completely-opposite-effects-to-idiopathic-membranous-nephropathy-in-chinese-han
#1
Xiaosong Qin, Chen Wang, Guanting Lu, Mengle Peng, Guixue Cheng, Hongquan Zhu, Yun Cao, Jianhua Liu, Yuzhong Li, Hong Cai, Funing Yang, Yanhong Liu, Xiaoyu Chen, Liubing Li, Nan Wan, Xiaoting Wen, Shijun Li, Ruili Nie, Dongchun Qin, Yongzhe Li, Yong Liu
The coexistence of immunoglobulin A nephropathy (IgAN) and idiopathic membranous nephropathy (IMN) in a few cases suggested that there could be existed a similar mechanism in pathogenesis of these two types of primary glomerulonephritis. In order to verify this hypothesis, a total of 23 reported IgAN-associated SNPs were genotyped in a cohort of 485 IMN patients and 569 healthy controls with Chinese Han origin. After Cochran-Armitage test for trend analysis, seven IgAN-associated SNPs located in the major histocompatibility complex (MHC) region were found to be significantly associated with the susceptibility of IMN, with rs9275596 as the top one (p = 1...
September 19, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28927772/-antiglomerular-basement-disease-in-children-literature-review-and-therapeutic-options
#2
G Dorval, S Guérin, L Berteloot, S Krid, R Salomon, L Galmiche-Rolland, O Boyer
Antiglomerular basement membrane glomerulonephritis is a rare autoimmune disease characterized by rapidly progressive glomerulonephritis that may be associated with pulmonary hemorrhage (Goodpasture syndrome). The disease is caused by autoantibodies (classically IgGs) directed against the α3 subunit of type IV collagen. This is a rare disease in the adult population and extremely rare in children, with a reported cumulative annual incidence at 1/10(6) people/year. Among scarce reported pediatric cases (n=31), most are girls (M/F sex ratio, 1:4), and the mean age at diagnoses is 9...
September 15, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28927419/tumor-necrosis-factor-superfamily-ligand-mrna-expression-profiles-differ-between-humans-and-mice-during-homeostasis-and-between-various-murine-kidney-injuries
#3
Satish Kumar Devarapu, Julia Felicitas Grill, Junhui Xie, Marc Weidenbusch, Mohsen Honarpisheh, Volker Vielhauer, Hans-Joachim Anders, Shrikant R Mulay
BACKGROUND: Several tumour necrosis factor (TNF) based therapeutics have already been approved for human use and several others are emerging. Therefore, we determined the mRNA expression levels of the TNF superfamily ligands (TNFSF) - e.g. TNF-α, lymphotoxin (LT)-α, LT-β, Fas-L (CD95-L), TNF-related apoptosis-inducing ligand (TRAIL), TNF-related weak inducer of apoptosis (TWEAK), 4-1BBL, OX40-L (CD252) and amyloid precursor protein (APP) in healthy human and mouse solid organs. METHODS: We used quantitative real time-PCR to analyse mRNA expression levels of TNFSF ligands...
September 19, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28925480/the-role-of-pten-up-regulation-in-suppressing-glomerular-mesangial-cells-proliferation-and-nephritis-pathogenesis
#4
H-Y Gao, C-X Han
OBJECTIVE: Over-proliferation of mesangial cells is the major pathological change of mesangial proliferative glomerulonephritis (MPGN). PTEN-PI3K/AKT pathway plays a role in regulating proliferation of mesangial cells. Anti-thymocyte serum nephritis (ATSN) is a widely used animal model for studying MPGN. This study established ATSN model, on which the role of PTEN-PI3K/AKT signal pathway in MPGN pathogenesis was investigated. MATERIALS AND METHODS: ASTN rat model was established in parallel with control group...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28918828/crescentic-glomerulonephritis-with-immunoglobulin-g4-related-disease
#5
Inbar Raber, Asiri Ediriwickrema, John Higgins, Neeraja Kambham, Alan C Pao
Immunoglobulin G4 (IgG4)-related disease is an uncommon autoimmune disease that affects multiple organ systems. Renal involvement typically presents as tubulointerstitial nephritis and less commonly as membranous glomerulonephritis. In this case report, we discuss a 68-year-old patient who presented with rapidly progressive glomerulonephritis. His renal biopsy revealed a membranoproliferative pattern of injury with fibrocellular crescents and extensive infiltration of the tubulointerstitium with IgG4-positive plasma cells...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28913747/primary-sj%C3%A3-gren-s-syndrome-extraglandular-manifestations-and-hydroxychloroquine-therapy
#6
J Demarchi, S Papasidero, M A Medina, D Klajn, R Chaparro Del Moral, O Rillo, V Martiré, G Crespo, A Secco, A Catalan Pellet, C Amitrano, C Crow, C Asnal, P Pucci, F Caeiro, N Benzanquen, J P Pirola, M Mayer, F Zazzetti, S Velez, J Barreira, N Tamborenea, L Santiago, L Raiti
The use of hydroxychloroquine (HCQ) in Primary Sjögren's Syndrome (pSS) has been assessed in different studies over the last years, with conflicting results regarding its efficacy in sicca syndrome and extraglandular manifestations (EGM). The goal of this study was to compare the incidence rate of EGM in pSS patients with and without HCQ therapy.We performed a multicenter retrospective study, including patients with pSS (European classification criteria) with at least 1 year of follow-up. Subjects with concomitant fibromyalgia, autoimmune hepatitis, primary biliary cirrhosis, and primary sclerosing cholangitis were excluded...
September 14, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28912820/granulomatosis-with-polyangiitis-with-myocarditis-and-ventricular-tachycardia
#7
Ramy Magdy Hanna, Eduardo Lopez, James Wilson
Granulomatosis with polyangiitis (GPA), previously known as Wegener's granulomatosis, is a pulmonary-renal syndrome affecting small and medium sized blood vessels. The disease has a prevalence in studies ranging from 3 to 15.7 cases per 100,000, with a noted increasing incidence and prevalence in more recent studies. Pulmonary manifestations include hemorrhage, lung cavitary lesions, and pulmonary fibrosis. Within the kidney, GPA is known to cause rapidly progressive pauci-immune crescentic glomerulonephritis...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28904428/collapsing-glomerulopathy-a-troublemaker-for-the-renal-allograft-lessons-learnt
#8
K V Kanodia, A V Vanikar, L K Nigam, R D Patel, K S Suthar, H V Patel, H L Trivedi
Collapsing glomerulopathy (CG) is a well-recognized distinct morphological pattern of proliferative parenchymal injury leading to rapid graft failure. We conducted a single-center retrospective study to evaluate the prevalence, clinicopathological features, and prognosis of CG in renal transplant recepient. We analyzed 2518 renal allograft biopsies performed from 2007 to 2015 and correlated their clinicopathological features. The prevalence of CG was 0.83% (21 out of 2518) of allograft biopsies with a higher prevalence of 1...
September 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28892995/concurrent-acute-glomerulonephritis-and-retropharyngeal-abscess-in-10-year-boy-a-case-report
#9
Sudha Yadav, Deepali Garg, Narain Das Vaswani, Jaya Shankar Kaushik, Seema Rohilla
Postinfectious Glomerulonephritis (PIGN) usually follows 1-2 weeks after respiratory tract infection and 4-6 weeks after skin infection. Acute Glomerulonephritis (AGN) is uncommon with simultaneous severe throat infections. We describe a 10-year-old boy who was presented with high grade fever, dysphagia and tender swelling over left side of neck. Examination also revealed enlarged multiple cervical lymph nodes on the same side of neck. Magnetic Resonance Imaging (MRI) of soft tissue of neck revealed evidence of retropharyngeal abscess...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28892427/norwegian-or-crusted-sarcoptic-mange-in-two-leishmanial-dogs
#10
Flora Kaltsogianni, Rania Farmaki, Alexander F Koutinas
Norwegian or crusted scabies (N/CS) is a rare skin disease with very few cases reported in the dog or the cat. Two adult, stray dogs were admitted in our clinic with a generalized, multifocal to diffuse and nonpruritic dermatitis that was characterized by severe crusting, scaling, and ulceration. In both instances, leishmaniosis and N/CS were diagnosed by immunofluorescent antibody test serology, lymph node cytology, and skin scrapings in which high numbers of Sarcoptes mites were found. The combination of miticidal and antileishmanial treatment, supported by topical treatment and nutritional support, resulted in the complete resolution of the skin lesions and spectacular improvement of the body condition in both cases...
September 11, 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28891817/neutrophil-fc%C3%AE-riia-promotes-igg-mediated-glomerular-neutrophil-capture-via-abl-src-kinases
#11
Hiroshi Nishi, Kazuhiro Furuhashi, Xavier Cullere, Gurpanna Saggu, Mark J Miller, Yunfeng Chen, Florencia Rosetti, Samantha L Hamilton, Lihua Yang, Spencer P Pittman, Jiexi Liao, Jan M Herter, Jeffrey C Berry, Daniel J DeAngelo, Cheng Zhu, George C Tsokos, Tanya N Mayadas
The kidney glomerular capillaries are frequent sites of immune complex deposition and subsequent neutrophil accumulation in post-infectious and rapidly progressive glomerulonephritis. However, the mechanisms of neutrophil recruitment remain enigmatic, and there is no targeted therapeutic to avert this proximal event in glomerular inflammation. The uniquely human activating Fc receptor FcγRIIA promotes glomerular neutrophil accumulation and damage in anti-glomerular basement membrane-induced (anti-GBM-induced) glomerulonephritis when expressed on murine neutrophils...
September 11, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28891413/post-infectious-glomerulonephritis
#12
Ramnath Balasubramanian, Stephen D Marks
Post-infectious glomerulonephritis (PIGN) is one of the most common causes of acute glomerulonephritis in children. Although post-streptococcal glomerulonephritis (PSGN) is still common, there is a wide spectrum of causative agents of PIGN. Non-streptococcal organisms are emerging as the main aetiological agents in high-income countries. Nephritis-associated plasmin receptor (NAPlr) and streptococcal pyrogenic exotoxin B (SPeB) are the two common antigens implicated in the pathogenesis of PSGN. Both NAPlr and SPeB activate the alternative complement pathway, resulting in low serum complement levels, and have an affinity to plasmin and glomerular proteins...
September 11, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28886586/a-murine-ig-light-chain-transgene-reveals-igkv3-gene-contributions-to-anti-collagen-types-iv-and-ii-specificities
#13
Amy G Clark, Inge M Worni-Schudel, Francesca M Korte, Mary H Foster
A subset of autoimmune diseases result from autoantibodies targeting epitopes on matrix collagen. The most extensively studied are anti-glomerular basement membrane glomerulonephritis (or its systemic counterpart Goodpasture's disease) that destroys kidneys and lungs, and rheumatoid arthritis that leads to disabling arthritis. Autoantibodies in these disorders bind evolutionarily conserved conformational epitopes on the noncollagenous domain 1 (NC1) of the alpha3 chain of type IV [alpha3(IV)NC1] collagen in glomerular and alveolar basement membranes, and on native or citrullinated type II collagen (CII) in joint cartilage, respectively...
September 5, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28884034/snakebite-induced-thrombotic-microangiopathy-leading-to-renal-cortical-necrosis
#14
Ying Mao Gn, Arvind Ponnusamy, Vikram Thimma
Renal complications from snakebite result in high mortality and morbidity. Acute kidney injury (AKI) occurs in 5-30% of cases. Renal manifestation could include acute tubular necrosis, cortical necrosis, interstitial nephritis, glomerulonephritis, and vasculitis. We present a case of thrombotic microangiopathy (TMA) resulting in renal cortical necrosis. Renal biopsy showed fibrin thrombi in glomeruli and arterioles with cortical necrosis. Our patient progressed to end-stage renal disease.
2017: Case Reports in Nephrology
https://www.readbyqxmd.com/read/28883245/the-sequential-development-of-antiglomerular-basement-membrane-nephritis-and-myeloperoxidase-antineutrophil-cytoplasmic-antibody-associated-vasculitis
#15
Naro Ohashi, Akio Namikawa, Masafumi Ono, Takamasa Iwakura, Shinsuke Isobe, Takayuki Tsuji, Akihiko Kato, Hideo Yasuda
A 55-year-old woman presented with deafness, increased levels of myeloperoxidase (MPO)-antineutrophil cytoplasmic antibody (ANCA), and renal insufficiency with proteinuria and hematuria. Renal biopsy revealed crescentic glomerulonephritis with the linear deposition of immunoglobulin G along the glomerular basement membrane (GBM) and peritubular capillaritis. The anti-GBM antibody levels on admission and 10 days after admission were 11.7 U/mL and 127 U/mL, respectively. These results indicated the sequential development of anti-GBM nephritis and MPO-ANCA-associated vasculitis...
September 6, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28881523/-further-understanding-of-membranoproliferative-glomerulonephritis
#16
W Wu, X Yang, R F Zhang
No abstract text is available yet for this article.
September 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28881339/interstitial-immunostaining-and-renal-outcomes-in-antineutrophil-cytoplasmic-antibody-associated-glomerulonephritis
#17
Duvuru Geetha, Sanjeev Sethi, An S De Vriese, Ulrich Specks, Cees G M Kallenberg, Noha Lim, Robert Spiera, E William St Clair, Peter A Merkel, Philip Seo, Paul A Monach, Nicola Lepori, Barri J Fessler, Carol A Langford, Gary S Hoffman, Rishi Sharma, John H Stone, Fernando C Fervenza
BACKGROUND: Immunopathologic features predict renal function at baseline and follow-up in antineutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis (GN). The interstitial infiltrate consists predominantly of T lymphocytes, but their pathophysiologic significance is unclear, especially in light of the success of B-cell-directed therapy. METHODS: Renal biopsies from 33 patients treated with cyclophosphamide (CYC; n = 17) or rituximab (RTX; n = 16) in the RTX in ANCA-associated vasculitis (RAVE) trial were classified according to the new ANCA GN classification...
September 8, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28881045/diagnostic-accuracy-of-immunofluorescence-versus-immunoperoxidase-staining-to-distinguish-immune-complex-mediated-glomerulonephritis-and-c3-dominant-glomerulopathy
#18
Yassine Bouatou, Jesper Kers, Marie S N Chevalier-Florquin, Nike Claessen, Tri Q Nguyen, Jeffrey Damman, Henrique Proença, Joris J T H Roelofs, Sandrine Florquin
AIMS: Membranoproliferative glomerulonephritis (MPGN) has been reclassified from an electron microscopy to an immunofluorescence (IF) based semi quantitative classification with immunoperoxidase (IP) technique as a backup option when IF is not possible. However, no data are available on the interobserver variability, the correlation and the reclassification of MPGN based on these two techniques. METHODS & RESULTS: We retrospectively analyzed cases of type 1 MPGN...
September 7, 2017: Histopathology
https://www.readbyqxmd.com/read/28880680/the-effect-and-possible-clinical-efficacy-of-in-vivo-inhibition-of-neutrophil-extracellular-traps-by-blockade-of-pi3k-gamma-on-the-pathogenesis-of-microscopic-polyangiitis
#19
Hirotaka Kimura, Yasushi Matsuyama, Sachiko Araki, Atsushi Koizumi, Yumi Kariya, Shunsuke Takasuga, Satoshi Eguchi, Hiroki Nakanishi, Junko Sasaki, Takehiko Sasaki
OBJECTIVE: Neutrophil extracellular traps (NETs) are peculiar structures composed of the externalized chromatin with intracellular proteins and formed by activated neutrophils in a reactive oxygen species (ROS)-dependent manner. Aberrant NETs are considered to be autoantigens for anti-neutrophil cytoplasmic antibodies (ANCAs) underling the development of microscopic polyangiitis (MPA). However, little is known regarding the therapeutic efficacy of in vivo inhibition of NET formation (NETosis) on MPA pathogenesis...
September 7, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28880016/-5r-5-hydroxytriptolide-ameliorates-anti-glomerular-basement-membrane-glomerulonephritis-in-nzw-mice-by-regulating-fc%C3%AE-receptor-signaling
#20
Qing Qi, Heng Li, Ze-Min Lin, Xiao-Qian Yang, Feng-Hua Zhu, Yu-Ting Liu, Mei-Juan Shao, Lu-Yao Zhang, Yan-Sheng Xu, Yu-Xi Yan, Lan-Lan Sun, Shi-Jun He, Wei Tang, Jian-Ping Zuo
(5R)-5-hydroxytriptolide (LLDT-8) is a novel triptolide analog that has been identified as a promising candidate for treating autoimmune diseases and has been shown to be effective in treating murine collagen-induced arthritis and lupus nephritis. In the present study, we investigated the therapeutic effect and possible mechanism of action of LLDT-8 in a murine anti-glomerular basement membrane (GBM) glomerulonephritis model. NZW mice were injected with rabbit anti-GBM serum (500 μL, ip). The mice were orally treated with LLDT-8 (0...
September 7, 2017: Acta Pharmacologica Sinica
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