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https://www.readbyqxmd.com/read/29217879/iga-dominant-infection-related-glomerulonephritis-in-india-a-single-center-experience
#1
J Dhanapriya, T Balasubramaniyan, S P Maharajan, T Dineshkumar, R Sakthirajan, N Gopalakrishnan, M Nagarajan
IgA-dominant infection-related glomerulonephritis (IRGN) is a distinct morphologic variant of IRGN, characterized by dominant or codominant glomerular deposits of IgA, mostly in elderly and patients with diabetes. More cases are being reported in recent times due to increased awareness of the disease entity and increased rate of Staphylococcus infection. It usually presents as rapidly progressive renal failure with proteinuria, and treatment guidelines for this disease entity are not well defined. We report here 12 cases of IgA-dominant IRGN seen over a period of 5 years from a single center...
November 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/29207754/clinicopathological-characteristics-and-outcomes-of-diffuse-crescentic-glomerulonephritis-a-single-center-experience-from-southern-india
#2
Shankar Prasad Nagaraju, Sindhura Lakshmi Koulmane Laxminarayana, Srinivas Kosuru, Rajeevalochana Parthasarathy, Ravindra Prabhu Attur, Dharshan Rangaswamy, Uday Venkat Matteti, Vasudeva Guddattu
Introduction: Diffuse Crescentic glomerulonephritis (CrGN) is characterized by rapidly progressive renal failure and has grave prognosis. There is significant regional and temporal variation in aetiology, prevalence and prognosis of diffuse crescentic glomerulonephritis (CrGN) with limited data available in adult Indian population. Aim: This study aims to identify the aetiology, clinico-pathological features and outcomes of diffuse CrGN in south Indian population...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29202929/live-imaging-of-heart-tube-development-in-mouse-reveals-alternating-phases-of-cardiac-differentiation-and-morphogenesis
#3
Kenzo Ivanovitch, Susana Temiño Valbuena, Miguel Torres
During vertebrate heart development two progenitor populations, first and second heart fields (FHF, SHF), sequentially contribute to longitudinal subdivisions of the heart tube (HT), with the FHF contributing the left ventricle and part of the atria, and the SHF the rest of the heart. Here we study the dynamics of cardiac differentiation and morphogenesis by tracking individual cells in live analysis of mouse embryos. We report that during an initial phase, FHF precursors differentiate rapidly to form a cardiac crescent, while limited morphogenesis takes place...
December 5, 2017: ELife
https://www.readbyqxmd.com/read/29197971/comparison-of-long-term-follow-up-outcomes-between-multiple-drugs-combination-therapy-and-tonsillectomy-pulse-therapy-for-pediatric-iga-nephropathy
#4
Yukihiko Kawasaki, Ryo Maeda, Syuto Kanno, Yuichi Suzuki, Shinichiro Ohara, Kazuhide Suyama, Mitsuaki Hosoya
BACKGROUND: To clarify the long-term efficacy of multiple-drugs combination therapy (PWDM) and tonsillectomy pulse therapy (TPT) for pediatric IgA nephropathy (IgAN), we retrospectively evaluated the clinical and laboratory findings as well as the prognosis for IgAN patients treated with each treatment at long-term follow-up. METHODS: We collected data on 61 children who had been diagnosed with severe IgAN. The children were retrospectively divided into two groups...
December 2, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29193529/renal-ultrasound-and-doppler-parameters-as-markers-of-renal-function-and-histopathological-damage-in-children-with-ckd
#5
Happy Sawires, Doaa Salah, Rania Hachem, Wesam Ismail, Amr Salem, Osama Botros, Hadeel Seif
BACKGROUND: Doppler ultrasonography can be used to assess the progression of vascular (arterial sclerosis) and parenchymal (glomerular sclerosis and crescents) renal damage. The aim of this study was to evaluate the significance of some sonographic and Doppler parameters as non-invasive markers of glomerular filtration rate (GFR) and renal histopathological damage in children. METHODOLOGY: A cohort of 84 children were enrolled in a case-control study (42 with CKD stages 2-5 and 42 healthy children)...
November 30, 2017: Nephrology
https://www.readbyqxmd.com/read/29185209/value-of-the-oxford-classification-of-iga-nephropathy-in-children-with-henoch-sch%C3%A3-nlein-purpura-nephritis
#6
Ke Xu, Lili Zhang, Jie Ding, Suxia Wang, Baige Su, Huijie Xiao, Fang Wang, Xuhui Zhong, Yanming Li
BACKGROUND: The widely used International Study of Kidney Disease in Children (ISKDC) classification for Henoch-Schönlein purpura nephritis (HSPN) does not completely correlate with the clinical presentation and long-term prognosis of this disease. Primary IgA nephropathy (IgAN) and HSPN share common features; thus, the Oxford classification of IgAN might be useful in predicting the long-term outcomes of HSPN. However, its value has not been confirmed in children with HSPN. METHODS: We selected children with HSPN diagnosed between 2003 and 2015, and reclassified their renal biopsies according to the Oxford classification scoring system...
November 28, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/29184126/genetic-and-pharmacological-inhibition-of-microrna-92a-maintains-podocyte-cell-cycle-quiescence-and-limits-crescentic-glomerulonephritis
#7
Carole Henique, Guillaume Bollée, Xavier Loyer, Florian Grahammer, Neeraj Dhaun, Marine Camus, Julien Vernerey, Léa Guyonnet, François Gaillard, Hélène Lazareth, Charlotte Meyer, Imane Bensaada, Luc Legrès, Takashi Satoh, Shizuo Akira, Patrick Bruneval, Stefanie Dimmeler, Alain Tedgui, Alexandre Karras, Eric Thervet, Dominique Nochy, Tobias B Huber, Laurent Mesnard, Olivia Lenoir, Pierre-Louis Tharaux
Crescentic rapidly progressive glomerulonephritis (RPGN) represents the most aggressive form of acquired glomerular disease. While most therapeutic approaches involve potentially toxic immunosuppressive strategies, the pathophysiology remains incompletely understood. Podocytes are glomerular epithelial cells that are normally growth-arrested because of the expression of cyclin-dependent kinase (CDK) inhibitors. An exception is in RPGN where podocytes undergo a deregulation of their differentiated phenotype and proliferate...
November 28, 2017: Nature Communications
https://www.readbyqxmd.com/read/29180420/structures-and-enzymatic-mechanisms-of-phycobiliprotein-lyases-cpce-f-and-pece-f
#8
Cheng Zhao, Astrid Höppner, Qian-Zhao Xu, Wolfgang Gärtner, Hugo Scheer, Ming Zhou, Kai-Hong Zhao
The light-harvesting phycobilisome in cyanobacteria and red algae requires the lyase-catalyzed chromophorylation of phycobiliproteins. There are three functionally distinct lyase families known. The heterodimeric E/F type is specific for attaching bilins covalently to α-subunits of phycocyanins and phycoerythrins. Unlike other lyases, the lyase also has chromophore-detaching activity. A subclass of the E/F-type lyases is, furthermore, capable of chemically modifying the chromophore. Although these enzymes were characterized >25 y ago, their structures remained unknown...
November 27, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29178575/serum-iga-c3-and-glomerular-c3-staining-predict-severity-of-iga-nephropathy
#9
Yukihiko Kawasaki, Ryo Maeda, Shinichiro Ohara, Kazuhide Suyama, Mitsuaki Hosoya
BACKGROUND: We evaluated whether the serum IgA/C3 ratio and glomerular C3 staining predict prognosis in IgA nephropathy. METHODS: We collected data for 44 IgA nephropathy children treated with multi-drug combination therapy. The children were retrospectively divided into four groups based on the serum IgA/C3 ratio and glomerular C3 staining. Group A consisted of 9 children with a higher than median IgA/C3 ratio and glomerular C3 staining ≧2.0, Group B consisted of 7 children with a higher than median IgA/C3 ratio and glomerular C3 staining <2...
November 27, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29173548/haemonchus-contortus-%C3%AE-tubulin-isotype-1-gene-f200y-and-f167y-snps-are-both-selected-by-ivermectin-and-oxfendazole-treatments-with-differing-impacts-on-anthelmintic-resistance
#10
Jessica Maria Leite Dos Santos, Janaelia Ferreira Vasconcelos, Gracielle Araújo Frota, Wesley Lyeverton Correia Ribeiro, Weibson Paz Pinheiro André, Luiz da Silva Vieira, Marcel Teixeira, Claudia Maria Leal Bevilaqua, Jomar Patrício Monteiro
Parasitism by Haemonchus contortus is one of the main limiting factors in small ruminant production in tropical areas. Benzimidazoles (BZ) and macrocyclic lactones (ML) are the most used anthelmintic classes in gastrointestinal nematodes control. There is considerable scientific evidence of a possible relation between the anthelmintic resistance to BZ and ML. This study aimed to characterize the dynamics of anthelmintic resistance in an H. contortus susceptible isolate under selection pressure for BZ and ML alone or in combination and the role of isotype 1 β-tubulin gene SNPs in these situations...
December 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/29172819/arias-stella-reaction-with-signet-ring-like-cell-histomorphology
#11
Andrea Hernandez, Jeanine Chiaffarano, Khushbakhat Mittal, Alan Marcus
Cells with their nucleus pushed to the periphery in a crescent-like fashion by intracytoplasmic vacuole(s) are referred to as signet ring cells when the vacuole(s) contain mucin and signet ring-like cells when they are empty or contain a material other than mucin. Signet ring cells are commonly associated with adenocarcinomas. These cells are uncommon in the endometrium and have been found to be associated with both malignant and benign processes. We report the first case of signet ring-like cells within endometrial glands with Arias-Stella reaction...
November 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29170179/anca-positive-iga-nephropathy-without-necrotising-or-crescentic-glomerulonephritis-a-clinical-conundrum
#12
Abhilash Koratala, Xu Zeng, Amir Kazory
IgA nephropathy, the most prevalent form of primary glomerular disease, usually portends a favourable outcome. Antineutrophil cytoplasmic autoantibodies (ANCAs) have been reported in association with IgA nephropathy in a small subset of patients, mostly presenting with rapidly progressive glomerulonephritis and necrotising crescentic lesions. Herein, we describe a case of IgA nephropathy, positive serum cytoplasmic and perinuclear ANCAs with anti-myeloperoxidase antibody, and preserved renal function without any histological evidence of necrotising or crescentic glomerulonephritis...
November 23, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29167986/amidase-activity-is-essential-for-medial-localization-of-amic-in-caulobacter-crescentus
#13
Amrita Dubey, Richa Priyadarshini
Bacterial cell division is a complex process brought about by the coordinated action of multiple proteins. Separation of daughter cells during the final stages of division involves cleavage of new cell wall laid down at the division septum. In E. coli, this process is governed by the action of N-acetylmuramoyl-L-alanine amidases AmiA/B/C, which are regulated by their LytM activators EnvC and NlpD. While much is known about the regulation of septum cleavage in E. coli, the mechanism of daughter cell separation is not clear in Caulobacter crescentus, a dimorphic crescent-shaped bacterium...
November 22, 2017: Current Genetics
https://www.readbyqxmd.com/read/29165676/structure-of-mycobacterial-3-to-5-rna-dna-helicase-lhr-bound-to-a-ssdna-tracking-strand-highlights-distinctive-features-of-a-novel-family-of-bacterial-helicases
#14
Anam Ejaz, Heather Ordonez, Agata Jacewicz, Ryan Ferrao, Stewart Shuman
Mycobacterial Lhr is a DNA damage-inducible superfamily 2 helicase that uses adenosine triphosphate (ATP) hydrolysis to drive unidirectional 3'-to-5' translocation along single-stranded DNA (ssDNA) and to unwind RNA:DNA duplexes en route. ATPase, translocase and helicase activities are encompassed within the N-terminal 856-amino acid segment. The crystal structure of Lhr-(1-856) in complex with AMPPNP•Mg2+ and ssDNA defines a new helicase family. The enzyme comprises two N-terminal RecA-like modules, a winged helix (WH) domain and a unique C-terminal domain...
November 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29162595/predicting-outcome-in-patients-with-anti-gbm-glomerulonephritis
#15
Emma E van Daalen, J Charles Jennette, Stephen P McAdoo, Charles D Pusey, Marco A Alba, Caroline J Poulton, Ron Wolterbeek, Tri Q Nguyen, Roel Goldschmeding, Bassam Alchi, Meryl Griffiths, Janak R de Zoysa, Beula Vincent, Jan A Bruijn, Ingeborg M Bajema
BACKGROUND AND OBJECTIVES: Large studies on long-term kidney outcome in patients with anti-glomerular basement membrane (anti-GBM) GN are lacking. This study aimed to identify clinical and histopathologic parameters that predict kidney outcome in these patients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: This retrospective analysis included a total of 123 patients with anti-GBM GN between 1986 and 2015 from six centers worldwide. Their kidney biopsy samples were classified according to the histopathologic classification for ANCA-associated GN...
November 21, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29158928/discontinuation-of-hemodialysis-in-a-patient-with-anti-gbm-disease-by-the-treatment-with-corticosteroids-and-plasmapheresis-despite-several-predictors-for-dialysis-dependence
#16
Yoshihide Fujigaki, Chikayuki Morimoto, Risa Iino, Kei Taniguchi, Yosuke Kawamorita, Shinichiro Asakawa, Daigo Toyoki, Shinako Miyano, Wataru Fujii, Tatsuru Ota, Shigeru Shibata, Shunya Uchida
A 26-year-old man highly suspected of having antiglomerular basement membrane (GBM) disease was treated with corticosteroid pulse therapy 9 days after initial infection-like symptoms with high procalcitonin value. The patient required hemodialysis the next day of the treatment due to oliguria. In addition to corticosteroid therapy, plasmapheresis was introduced and the patient could discontinue hemodialysis 43 days after the treatment. Kidney biopsy after initiation of hemodialysis confirmed anti-GBM disease with 86...
2017: Case Reports in Nephrology
https://www.readbyqxmd.com/read/29153070/-the-importance-of-the-contribution-of-rapid-test-serological-and-molecular-methods-in-the-diagnosis-of-two-imported-malaria-cases-with-atypical-microscopy
#17
Orçun Zorbozan, Hüsnü Pullukçu, Esra Atalay Şahar, Muhammet Karakavuk, Hüseyin Can, Varol Tunali, Mert Döşkaya, Nevin Turgay, Seray Töz, Ahmet Özbilgin
Malaria is a widespread and life-threatening disease in tropical and subtropical regions. In patients with typical clinical symptoms, malaria is considered as a preliminary diagnosis if there is a travel history to malaria-endemic areas. The basis of the laboratory diagnosis of malaria is the microscopic examination of Giemsa stained smears. On the other hand, the diagnosis and differentiation of Plasmodium species with microscopic examination may have some difficulties. In the first case, adifferent appearance from the classical Plasmodium vivax erythrocytic forms in infected erythrocytes were detected in 1% of all erythrocytes in thin smear blood preparations of a 26-year-old male with complaints of fever and chills and a story of travel to Nigeria...
October 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/29143119/infectious-and-non-infectious-diseases-causing-the-air-crescent-sign-a-state-of-the-art-review
#18
REVIEW
Joyce Betta Sevilha, Rosana Souza Rodrigues, Miriam Menna Barreto, Gláucia Zanetti, Bruno Hochhegger, Edson Marchiori
Aspergilloma, also known as mycetoma or fungus ball, is characterized by a round or oval mass with soft-tissue attenuation within a preexisting lung cavity. The typical computed tomography (CT) aspect of an aspergilloma is a mass separated from the wall of the cavity by an airspace of variable size and shape, resulting in the air crescent sign, also known as the meniscus sign. This CT feature is non-specific and can be simulated by several other entities that result in intracavitary masses. This review describes the main clinical and imaging aspects of the infectious and non-infectious diseases that may present with fungus-ball appearance, including pulmonary hydatid cyst, Rasmussen aneurysm, pulmonary gangrene, intracavitary clot, textiloma, lung cancer, metastasis, and teratoma, focusing on the differential diagnosis...
November 15, 2017: Lung
https://www.readbyqxmd.com/read/29141316/-a-clinical-analysis-of-micafungin-treatment-of-pulmonary-invasive-fungal-infection-in-pediatric-patients-with-acute-leukemia-or-post-hematopoietic-stem-cells-transplantation
#19
K Huang, K Y Qiu, L L Deng, J P Fang, Y Li, H X Guo, D H Zhou
Objective: To investigate the efficacy and safety of micafungin (MCF) for pulmonary invasive fungal disease (PIFD) in pediatric patients with acute leukemia or post hematopoietic stem cells transplantation. Method: Twenty-five neutropenic PIFD children with acute leukemia or post hematopoietic stem cells transplantation in Sun Yat-sen Memorial Hospital of Sun Yat-sen University were selected from January 2012 to June 2015, including 12 males and 13 females, age range 2-15 (average 6.2±2.0) years. There were 12 cases of acute leukemia (AL) after chemotherapy, 4 cases of acute leukemia (AL) after allogeneic hematopoietic stem cell transplantation (allo-HSCT) and 9 cases of β-thalassemia major after allo-HSCT...
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29135472/crystal-growth-and-transport-properties-of-weyl-semimetal-taas
#20
Raman Sankar, Peramaiyan G, Panneer Muthuselvam Irulandi, Suyang Xu, M Zahid Hasan, Fang-Cheng Chou
We report single crystal growth and transport properties of a Weyl semimetal TaAs. Unsaturated large MR about 22100 % at 2 K and 9 T is observed. From the Hall measurement, carrier concentrations n = 4.608×1024 m-3 and p = 3.099×1024 m-3, and mobilities μp = 2.502 m2 V-1 s-1 and μn = 16.785 m2 V-1 s-1 at 2 K are extracted. The de Haas-van Alphen (dHvA) oscillations at 2 K and 9 T suggest the presence of a Fermi surface, and the quantum electronic parameters such as effective cyclotron mass and Dingle temperature were obtained using Lifshitz-Kosevich (L-K) fitting...
November 14, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
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