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idiopathic membranous

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https://www.readbyqxmd.com/read/27921164/m-type-phospholipase-a2-receptor-pla2r-glomerular-staining-in-pediatric-idiopathic-membranous-nephropathy
#1
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/27911114/changes-of-tangential-traction-after-macular-peeling-correlation-between-en-face-analysis-and-macular-sensitivity
#2
Mario R Romano, Gilda Cennamo, Ida Cesarano, Domenico Cardone, Giuseppe Nicoletti, Rodolfo Mastropasqua, Giovanni Cennamo
PURPOSE: To assess the epi- and intra-retinal morphology changes of the tangential tractions following vitreoretinal surgery for epiretinal membranes and to investigate the correlation between the depth of retinal changes and functional macular sensitivity (MS). METHODS: This is a prospective cross-sectional interventional study, in which 73 eyes of 73 patients with diagnosis of idiopathic epiretinal membrane (iERM) were evaluated. All patients received complete ophthalmic evaluation, including axial and en-face scanning spectral domain-optical coherence tomography (SD-OCT) analysis and microperimetry...
December 2, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27900480/deep-and-superficial-oct-angiography-changes-after-macular-peeling-idiopathic-vs-diabetic-epiretinal-membranes
#3
Mario R Romano, Gilda Cennamo, Stefano Schiemer, Claudia Rossi, Federica Sparnelli, Giovanni Cennamo
BACKGROUND: To assess changes in deep and superficial perifoveal capillary plexus after macular peeling in idiopathic and diabetic epiretinal membrane (iERM and dERM, respectively). METHODS: Cross-sectional comparative study. We included 40 eyes from 40 patients affected by iERM (20 eyes) and dERM (20 eyes), as well as 34 eyes from 17 healthy, age-matched patients. Patients received a complete ophthalmic evaluation including axial and en-face scanning spectral-domain analysis, optical coherence tomography angiography, and microperimetry...
November 30, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27895460/preoperative-optical-coherence-tomography-visualization-of-epiretinal-membranes-enhances-surgical-strategies
#4
Norihiro Suzuki, Yoshio Hirano, Miyu Ichida, Taneto Tomiyasu, Yuya Esaki, Tsutomu Yasukawa, Yuichiro Ogura
PURPOSE: The aim of this study was to evaluate the usefulness of preoperative optical coherence tomography (OCT) findings in patients with macular epiretinal membrane (ERM) for the planning of surgical strategy. PATIENTS AND METHODS: One hundred twenty-three eyes of 121 patients (49 men, 72 women; mean age, 66 years) with an idiopathic ERM were enrolled. All patients underwent an ophthalmic examination including indirect ophthalmoscopy and OCT (Cirrus HD-OCT 4000 and/or 5000)...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27893098/vitreal-cytokine-profile-differences-between-eyes-with-epiretinal-membranes-or-macular-holes
#5
Souska Zandi, Christoph Tappeiner, Isabel B Pfister, Alain Despont, Robert Rieben, Justus G Garweg
Purpose: Cytokines play an important role in cell signaling in inflammatory and repair processes, also within the posterior segment of the eye. These molecules are thus implicated in the pathophysiology of several vitreoretinal diseases. In the present study, we compared vitreal cytokine profiles in patients with idiopathic epiretinal membranes (ERMs) and idiopathic full-thickness macular holes (MHs) without epiretinal membranes. Methods: Native vitreal humor was collected during elective pars plana vitrectomy for the treatment of macular pathologies (group 1: ERM; group 2: MH) from patients without any other ocular or systemic disease...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27890680/the-putative-role-of-maldi-msi-in-the-study-of-membranous-nephropathy
#6
Andrew Smith, Vincenzo L'Imperio, Elena Ajello, Franco Ferrario, Niccolò Mosele, Martina Stella, Manuel Galli, Clizia Chinello, Federico Pieruzzi, Goce Spasovski, Fabio Pagni, Fulvio Magni
Membranous Nephropathy (MN) is an immunocomplex mediated renal disease that represents the leading cause of nephrotic syndrome in adults and is one of the most frequent glomerulopathies worldwide. This glomerular disease can manifest as primary (idiopathic) or secondary and this distinction is crucial when choosing the most appropriate management of patients. In secondary cases, the best strategy consists in treating the underlying disease whereas in primary forms, the possible identification of confirmatory markers of the idiopathic etiology underlining the process is requested by clinicians...
November 23, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27889928/elucidating-the-role-of-cyclooxygenase-2-in-the-pathogenesis-of-oral-lichen-planus-an-immunohistochemical-study-with-supportive-histochemical-analysis
#7
Pratyush Singh, Jasleen Grover, Aditi Amit Byatnal, Vasudeva Guddattu, Raghu Radhakrishnan, Monica Charlotte Solomon
OBJECTIVE: Oral lichen planus (OLP) is a chronic, inflammatory disorder that affects the oral mucous membrane. During an inflammatory response, several chemokines and cytokines are released by the cells of the immune system. Activation of MMPs, along with mast cell-derived chymase and tryptase, degrades the basement membrane structural proteins, resulting in basement membrane breaks. AIM: To investigate the association between the COX-2 expressions, presence of intact or degranulating mast cells within the connective tissue and the extent of basement membrane discontinuity in OLP cases...
November 7, 2016: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/27888806/decreased-dach1-expression-in-glomerulopathy-is-associated-with-disease-progression-and-severity
#8
Qing-Quan Liu, Ya-Qun Zhou, Hui-Quan Liu, Wen-Hui Qiu, Hui Liu, Ting-Yang Hu, Qing Xu, Yong-Man Lv, Kong-Ming Wu
Cell fate determination factor dachshund1 (DACH1) is a chromosome-associated protein that regulates cellular differentiation throughout development. Recent genome-wide association studies have show that missense mutation in DACH1 leads to hereditary renal hypodysplasia. Renal DACH1 expression can be used to estimate glomerular filtration rate (eGFR). We firstly characterized the function of DACH1 in normal and diseased renal tissue using immunohistochemistry to assess DACH1 in human renal biopsy specimens from 40 immunoglobulin A nephropathy (IgAN) patients, 20 idiopathic membranous nephropathy (IMN) patients, and 15 minimal change disease (MCD) patients...
November 19, 2016: Oncotarget
https://www.readbyqxmd.com/read/27876629/improvement-of-idiopathic-membranous-nephropathydiagnosis-with-ultrasensitive-quantitative-detection-of-anti-phospholipase-a2-receptor
#9
Biao Huang, Liang Wang, Ya-Nan Cao, Yi Zhang, Jue Zhang, Hualong Xiao, Qiuhua Zhang, Weidong Wang, Zhuxing Sun, Yu Chen, Huiming Sheng, Zhigang Hu
The work focused on development of a sensitive, quantitative assay for serum PLA2R-IgG with wide dynamic working range, as an aid to differential diagnosis of IMN and to exclude secondary Membranous Nephropathy with slight elevation of anti-PLA2R-IgG from IMN.
November 19, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27876003/pla2r-antibodies-and-pla2r-glomerular-deposits-in-psoriasis-patients-with-membranous-nephropathy
#10
Yong-Chun Ge, Bo Jin, Cai-Hong Zeng, Ming-Chao Zhang, Da-Cheng Chen, Ru Yin, Wei-Bo Le
BACKGROUND: The association between psoriasis and membranous nephropathy (MN) remains largely unclear. We examined the prevalence of serum PLA2R antibody and characterized the expression of PLA2R and THSD7A in glomeruli in patients with MN and psoriasis. METHODS: A total of 24 patients with MN without evidence of a secondary cause except psoriasis were enrolled. The clinical and pathological features were retrospectively analyzed. Serum anti-PLA2R antibody was measured using IFA Mosaic...
November 22, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27870800/postoperative-inner-nuclear-layer-microcysts-affecting-long-term-visual-outcomes-after-epiretinal-membrane-surgery
#11
Shih-Jen Chen, Fang-Yi Tsai, Han-Chung Liu, Yu-Chien Chung, Tai-Chi Lin
PURPOSE: To investigate the risk factors and long-term visual impact of microcysts in the inner nuclear layer developed after epiretinal membrane (ERM) surgery. METHODS: This study used a retrospective review of medical records, operative video and images of patients who had undergone idiopathic ERM surgery with more than 12 months of follow-up. RESULTS: This study enrolled 44 patients (44 eyes) with ERM and a mean follow-up period of 30.2 months...
December 2016: Retina
https://www.readbyqxmd.com/read/27867361/calcium-sensing-receptor-regulates-cytosolic-ca-2-and-plays-a-major-role-in-the-development-of-pulmonary-hypertension
#12
REVIEW
Kimberly A Smith, Ramon J Ayon, Haiyang Tang, Ayako Makino, Jason X-J Yuan
Pulmonary arterial hypertension (PAH) is a progressive disease characterized by elevated pulmonary vascular resistance (PVR) leading to right heart failure and premature death. The increased PVR results in part from pulmonary vascular remodeling and sustained pulmonary vasoconstriction. Excessive pulmonary vascular remodeling stems from increased pulmonary arterial smooth muscle cell (PASMC) proliferation and decreased PASMC apoptosis. A rise in cytosolic free Ca(2+) concentration ([Ca(2+)]cyt) in PASMC is a major trigger for pulmonary vasoconstriction and a key stimulus for PASMC proliferation and migration, both contributing to the development of pulmonary vascular remodeling...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27855469/right-sided-heart-failure-and-extracorporeal-life-support-in-patients-undergoing-pericardiectomy-for-constrictive-pericarditis-a-risk-factor-analysis-for-adverse-outcome
#13
Erik Beckmann, Issam Ismail, Serghei Cebotari, Alexander Busse, Andreas Martens, Malakh Shrestha, Christian Kühn, Axel Haverich, Christine Fegbeutel
Background Right ventricular failure is a life-threatening postoperative complication after pericardiectomy. We conducted a retrospective study with a special emphasis on right ventricular failure. Methods Between June 1997 and September 2011, 69 patients underwent surgical pericardiectomy at our center. Mean age was 59 ( ±  15.5) years, and 49 (71%) patients were male. Causes of constrictive pericarditis included idiopathic (52%, n = 36), tuberculosis (9%, n = 6), postcardiotomy (12%, n = 8), radiation (4%, n = 3), renal insufficiency (12%, n = 8), and autoimmune disease (12%, n = 8)...
November 17, 2016: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/27853954/spectral-domain-optical-coherence-tomography-findings-in-idiopathic-lamellar-macular-hole
#14
Elena Zampedri, Federica Romanelli, Francesco Semeraro, Barbara Parolini, Rino Frisina
BACKGROUND: To evaluate demographic, functional, and morphological parameters of idiopathic lamellar macular hole (ILMH). METHODS: Observational longitudinal retrospective study. Optical coherence tomography examinations and corresponding clinical charts of a series of consecutive patients affected by ILMH, between January 2010 and March 2015, from the database of the Department of Ophthalmology of Trento Hospital, Italy, have been collected and examined. Demographic and functional parameters were: age (year), gender (male/female), eye (right/left), lens status, best-corrected visual acuity (BCVA) in logarithm of the minimum angle of resolution (LogMAR)...
November 16, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27852637/mhc-class-ii-risk-alleles-and-amino-acid-residues-in-idiopathic-membranous-nephropathy
#15
Zhao Cui, Li-Jun Xie, Fang-Jin Chen, Zhi-Yong Pei, Li-Jie Zhang, Zhen Qu, Jing Huang, Qiu-Hua Gu, Yi-Miao Zhang, Xin Wang, Fang Wang, Li-Qiang Meng, Gang Liu, Xu-Jie Zhou, Li Zhu, Ji-Cheng Lv, Fan Liu, Hong Zhang, Yun-Hua Liao, Lu-Hua Lai, Pierre Ronco, Ming-Hui Zhao
Epitopes of phospholipase A2 receptor (PLA2R), the target antigen in idiopathic membranous nephropathy (iMN), must be presented by the HLA-encoded MHC class II molecules to stimulate autoantibody production. A genome-wide association study identified risk alleles at HLA and PLA2R loci, with the top variant rs2187668 within HLA-DQA1 showing a risk effect greater than that of the top variant rs4664308 within PLA2R1. How the HLA risk alleles affect epitope presentation by MHC class II molecules in iMN is unknown...
November 16, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27831903/calciprotein-particles-as-potential-etiologic-agents-of-idiopathic-preterm-birth
#16
Lydia L Shook, Catalin S Buhimschi, Antonette T Dulay, Megan E McCarthy, John T Hardy, Christina M Duzyj Buniak, Guomao Zhao, Irina A Buhimschi
Preterm birth (PTB) is a leading cause of neonatal morbidity and mortality and is often preceded by preterm premature rupture of the membranes (PPROM) without an identifiable cause. Pathological calcification, the deposition of hydroxyapatite (HA) in nonskeletal tissues, has been implicated in degenerative diseases including atherosclerosis and aneurism rupture. Among pathogenic mechanisms, the aberrant aggregation of HA into calciprotein particles (CPPs) and the HA-induced differentiation of mesenchymal cells into osteoblasts (ectopic osteogenesis) have been implicated...
November 9, 2016: Science Translational Medicine
https://www.readbyqxmd.com/read/27816054/increased-age-rage-ratio-in-idiopathic-pulmonary-fibrosis
#17
Carlos Machahua, Ana Montes-Worboys, Roger Llatjos, Ignacio Escobar, Jordi Dorca, Maria Molina-Molina, Vanesa Vicens-Zygmunt
BACKGROUND: The abnormal epithelial-mesenchymal restorative capacity in idiopathic pulmonary fibrosis (IPF) has been recently associated with an accelerated aging process as a key point for the altered wound healing. The advanced glycation end-products (AGEs) are the consequence of non-enzymatic reactions between lipid and protein with several oxidants in the aging process. The receptor for AGEs (RAGEs) has been implicated in the lung fibrotic process and the alveolar homeostasis. However, this AGE-RAGE aging pathway has been under-explored in IPF...
November 5, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27803812/transient-increase-of-retinal-nerve-fiber-layer-thickness-after-vitrectomy-with-ilm-peeling-for-idiopathic-macular-hole
#18
Kouichi Ohta, Atsuko Sato, Nami Senda, Emi Fukui
Purpose. The purpose of this study was to determine the long-term changes in the circumpapillary retinal nerve fiber layer (RNFL) thickness following macular hole surgery with internal limiting membrane (ILM) peeling combined with phacoemulsification. Methods. Thirty-eight eyes of 37 patients who had pars plana vitrectomy (n = 36) between 2010 and 2014 were studied. The average thicknesses of the global and the six sectors of the RNFL were determined before and at 1, 3, 6, 12, and 24 (n = 22) months (M) after the surgery by spectral-domain optical coherent tomography...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27800456/successful-lung-transplant-after-prolonged-extracorporeal-membrane-oxygenation-ecmo-in-a-child-with-pulmonary-hypertension-a-case-report
#19
Cecile Tissot, Walid Habre, Paola Soccal, Maja Isabel Hug, Dominique Bettex, Michel Pellegrini, Yacine Aggoun, Anne Mornand, Afksendyios Kalangos, Peter Rimensberger, Maurice Beghetti
INTRODUCTION: The use of extracorporeal membrane oxygenation (ECMO) is considered a risk factor for, or even a potential contraindication to, lung transplantation. However, only a few pediatric cases have been described thus far. CASE PRESENTATION: A 9-year-old boy with idiopathic pulmonary arterial hypertension developed cardiac arrest after the insertion of a central catheter. ECMO was used as a bridge to lung transplantation. However, after prolonged resuscitation, he developed medullary ischemia and medullary syndrome...
August 2016: Research in Cardiovascular Medicine
https://www.readbyqxmd.com/read/27800248/late-closure-of-a-stage-iii-idiopathic-macular-hole-after-pars-plana-vitrectomy
#20
Filiz Afrashi, Zafer Öztaş, Serhad Nalçacı
A 57-year-old female presented to our hospital with decreased vision in her right eye. Detailed ocular examination was performed, and a macular hole was detected in the right eye. The presence of a full-thickness stage III macular hole was confirmed with optical coherence tomography (OCT) imaging. Pars plana vitrectomy followed by long-acting gas tamponade (C3F8) was performed as treatment. One month after surgery, clinical examination revealed a persistent macular hole, confirmed by an OCT scan. Although the patient was scheduled for reoperation, the surgery was postponed due to personal reasons of the patient...
December 2015: Turkish Journal of Ophthalmology
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