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https://www.readbyqxmd.com/read/29316563/visual-outcomes-based-on-early-response-to-anti-vascular-endothelial-growth-factor-treatment-for-diabetic-macular-edema
#1
Yoshito Koyanagi, Shigeo Yoshida, Yoshiyuki Kobayashi, Yuki Kubo, Takahito Nakama, Keijiro Ishikawa, Shintaro Nakao, Toshio Hisatomi, Yasuhiro Ikeda, Yuji Oshima, Tatsuro Ishibashi, Koh-Hei Sonoda
OBJECTIVE: To examine the relationship between early response to anti-vascular endothelial growth factor (VEGF) treatment and visual prognosis. METHODS: We retrospectively separated 20 patients with persistent diabetic macular edema (DME) into two responder status groups based on the reduction of central macular thickness (CMT) from baseline to month 3: a delayed responder group (DRG) (≤25% CMT reduction, n = 11) and an immediate responder group (IRG) (>25% CMT reduction, n = 14)...
January 9, 2018: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/29236796/hyperbaric-oxygenation-and-the-genic-expression-related-to-oxidative-stress-in-the-heart-of-mice-during-intestinal-ischemia-and-reperfusion
#2
Frederico Somaio, Adauto Tsutomo Ikejiri, Paulo Roberto Bertoletto, José Carlos Chaves, Roberto Teruya, Djalma José Fagundes
PURPOSE: To investigate the effects of hyperbaric oxygenation (HBO) on intestinal ischemia and reperfusion (IR) injury, we evaluated the expression of 84 genes related to oxidative stress and the antioxidant response in mouse hearts. METHODS: Four groups were subjected to 60 minutes of intestinal ischemia followed by 60 minutes of reperfusion: IRG, ischemia and reperfusion group without HBO; HBO-IG, which received HBO during ischemia; HBO-RG, which received HBO during reperfusion; and HBO-IRG, which received HBO during ischemia and reperfusion...
November 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29200682/assessment-of-angiogenesis-in-children-with-acute-lymphoblastic-leukemia-based-on-serum-vascular-endothelial-growth-factor-assay
#3
Agnieszka Mizia-Malarz, Grazyna Sobol-Milejska
Introduction: Vascular endothelial growth factor A (VEGFA) is a key proangiogenic cytokine. The role of angiogenesis in acute lymphoblastic leukemia (ALL) is still unclear. The purpose of the study was to assess angiogenesis in children with ALL based on serum VEGFA level determined at diagnosis and at remission with further participant subdivision into different risk groups. Materials and Methods: Forty children, aged 3-12 years (mean age: 8 years) with newly diagnosed ALL, were enrolled in the study...
July 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29181825/a-primary-hepatic-gastrinoma-accompanied-by-hyperplasia-of-multi-nodular-brunner-s-glands
#4
Takaomi Hagi, Yohei Hosoda, Izumi Komoto, Shinji Uemoto, Susumu Hijioka, Yoshiro Taki, Kazuhiro Nishiyama, Masayuki Imamura
BACKGROUND: Primary hepatic gastrinoma causing severe ulcerogenic syndrome is extremely rare. Herein, we report a case of primary hepatic gastrinoma accompanied by hyperplasia of multi-nodular Brunner's glands in a patient who instead, preoperatively, was suspected of having multiple duodenal gastrinomas and hepatic metastasis. CASE PRESENTATION: A 57-year-old woman consulted a clinic complaining of melena, intermittent abdominal pain, diarrhea, and vomiting which had persisted for about 3 years...
November 28, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/29174633/regulation-of-innate-immune-functions-by-guanylate-binding-proteins
#5
REVIEW
Gerrit J K Praefcke
Guanylate-binding proteins (GBP) are a family of dynamin-related large GTPases which are expressed in response to interferons and other pro-inflammatory cytokines. GBPs mediate a broad spectrum of innate immune functions against intracellular pathogens ranging from viruses to bacteria and protozoa. Several binding partners for individual GBPs have been identified and several different mechanisms of action have been proposed depending on the organisms, the cell type and the pathogen used. Many of these anti-pathogenic functions of GBPs involve the recruitment to and the subsequent destruction of pathogen containing vacuolar compartments, the assembly of large oligomeric innate immune complexes such as the inflammasome, or the induction of autophagy...
November 2, 2017: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/29154856/comparative-study-of-two-immunity-related-gtpase-genes-in-chinese-soft-shell-turtle-reveals-their-molecular-characteristics-and-functional-activity-in-immune-defense
#6
Yan Shi, Sixian Shen, Sufei Hu, Tie Ding, Xiaoyou Hong, Chen Chen, Xinping Zhu, Zhe Zhao
The immunity-related GTPases (IRGs) are a family of proteins that play critical roles in innate resistance to intracellular pathogens. The number and diversity of IRG genes differ greatly in different species. Although IRG proteins have been well studies in mammals, they remain poorly characterized in lower vertebrates. In this study, we cloned two IRG genes, PsIRG5 and PsIRG8, from the Chinese soft-shelled turtle and compared their characterization and functional activity with mammalian IRGs. The PsIRG5 is a gene of 1896 bp that encodes a protein of 413 amino acid and PsIRG8 is 1543 bp in length encoding another 413 aa protein...
November 14, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29067635/interferon-regulated-gene-irg-expression-signature-in-a-mouse-model-of-chikungunya-virus-neurovirulence
#7
Sreeja R Nair, Rachy Abraham, Sankar Sundaram, Easwaran Sreekumar
Interferon regulated genes (IRGs) are critical in controlling virus infections. Here, we analyzed the expression profile of IRGs in the brain tissue in a mouse model of chikungunya virus (CHIKV) neurovirulence. Neurovirulence is one of the newer complications identified in disease caused by re-emerging strains of CHIKV, an alphavirus with positive-strand RNA in the Togaviridae family. In microarray analysis, we identified significant upregulation of 269 genes, out of which a predominant percentage (76%) was IRGs...
October 24, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28975702/mechanisms-and-functions-of-guanylate-binding-proteins-and-related-interferon-inducible-gtpases-roles-in-intracellular-lysis-of-pathogens
#8
REVIEW
Chinh C Ngo, Si Ming Man
Guanylate-binding proteins (GBPs) are a group interferon-inducible GTPases within the constellation of the dynamin GTPase superfamily. These proteins restrict the replication of intracellular pathogens in both immune and non-immune cells. GBPs and their related family members immunity-related GTPases target and lyse the membrane of the pathogen-containing vacuole, destroying the residential niche of vacuolar protozoal and bacterial pathogens. They also prevent virion infectivity and target replication complexes of ribonucleic acid viruses...
October 3, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28955618/application-of-customised-bacterial-inoculants-for-grass-haylage-production-and-its-effectiveness-on-nutrient-composition-and-fermentation-quality-of-haylage
#9
Ilavenil Soundharrajan, Da Hye Kim, Srigopalram Srisesharam, Palaniselvam Kuppusamy, Hyung Soo Park, Yong Hee Yoon, Won Ho Kim, Young Gil Song, Ki Choon Choi
The present study aimed to investigate the efficacy of customised Lactobacillus plantarum KCC-10, KCC-19 and K-46 on nutrient composition and fermentation quality of low moisture Italian ryegrass (IRG) forage. An addition of customised bacterial inoculants (CBI) did not affect the nutrient compositions and digestibility rates of haylage. The lactic acid content was higher in CBI-inoculated haylage, whereas the amount of acetic acid and butyric acid production was significantly reduced than the control. CBI-inoculated haylage exhibited higher numbers of bacterial colonies that reduced the pH of the haylage...
October 2017: 3 Biotech
https://www.readbyqxmd.com/read/28827704/transcriptional-dysregulation-of-interferome-in-experimental-and-human-multiple-sclerosis
#10
Sundararajan Srinivasan, Martina Severa, Fabiana Rizzo, Ramesh Menon, Elena Brini, Rosella Mechelli, Vittorio Martinelli, Paul Hertzog, Marco Salvetti, Roberto Furlan, Gianvito Martino, Giancarlo Comi, Eliana Coccia, Cinthia Farina
Recent evidence indicates that single multiple sclerosis (MS) susceptibility genes involved in interferon (IFN) signaling display altered transcript levels in peripheral blood of untreated MS subjects, suggesting that responsiveness to endogenous IFN is dysregulated during neuroinflammation. To prove this hypothesis we exploited the systematic collection of IFN regulated genes (IRG) provided by the Interferome database and mapped Interferome changes in experimental and human MS. Indeed, central nervous system tissue and encephalitogenic CD4 T cells during experimental autoimmune encephalomyelitis were characterized by massive changes in Interferome transcription...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28793350/ifnar2-dependent-gene-expression-profile-induced-by-ifn-%C3%AE-in-pteropus-alecto-bat-cells-and-impact-of-ifnar2-knockout-on-virus-infection
#11
Qian Zhang, Lei-Ping Zeng, Peng Zhou, Aaron T Irving, Shang Li, Zheng-Li Shi, Lin-Fa Wang
Bats are important reservoirs of many viruses, which are capable of infecting the host without inducing obvious clinical diseases. Interferon and the downstream interferon regulated genes (IRGs) are known to act as the first line of defense against viral infections. Little is known about the transcriptional profile of genes being induced by interferon in bats and their role in controlling virus infection. In this study, we constructed IFNAR2 knockout bat cell lines using CRISPR technology and further characterized gene expression profiles induced by the most abundant IFN-α (IFN-α3)...
2017: PloS One
https://www.readbyqxmd.com/read/28680086/host-age-and-expression-of-genes-involved-in-red-blood-cell-invasion-in-plasmodium-falciparum-field-isolates
#12
Aida Valmaseda, Quique Bassat, Pedro Aide, Pau Cisteró, Alfons Jiménez, Aina Casellas, Sonia Machevo, Ruth Aguilar, Betuel Sigaúque, Virander S Chauhan, Christine Langer, James Beeson, Chetan Chitnis, Pedro L Alonso, Deepak Gaur, Alfredo Mayor
Plasmodium falciparum proteins involved in erythrocyte invasion are main targets of acquired immunity and important vaccine candidates. We hypothesized that anti-parasite immunity acquired upon exposure would limit invasion-related gene (IRG) expression and affect the clinical impact of the infection. 11 IRG transcript levels were measured in P. falciparum isolates by RT-PCR, and IgG/IgM against invasion ligands by Luminex®, in 50 Mozambican adults, 25 children with severe malaria (SM) and 25 with uncomplicated malaria (UM)...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28669671/viral-replication-complexes-are-targeted-by-lc3-guided-interferon-inducible-gtpases
#13
Scott B Biering, Jayoung Choi, Rachel A Halstrom, Hailey M Brown, Wandy L Beatty, Sanghyun Lee, Broc T McCune, Erin Dominici, Lelia E Williams, Robert C Orchard, Craig B Wilen, Masahiro Yamamoto, Jörn Coers, Gregory A Taylor, Seungmin Hwang
All viruses with positive-sense RNA genomes replicate on membranous structures in the cytoplasm called replication complexes (RCs). RCs provide an advantageous microenvironment for viral replication, but it is unknown how the host immune system counteracts these structures. Here we show that interferon-gamma (IFNG) disrupts the RC of murine norovirus (MNV) via evolutionarily conserved autophagy proteins and the induction of IFN-inducible GTPases, which are known to destroy the membrane of vacuoles containing bacteria, protists, or fungi...
July 12, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28595977/factors-influencing-time-between-onset-of-signs-symptoms-and-referral-for-dementia-in-elderly-outpatients
#14
P Koskas, C Pons-Peyneau, N Houenou-Quenum, M Romdhani, M Gasmi, S Galleron, O Drunat
BACKGROUND: The few studies that have focused on Time between Onset of Signs and Symptoms and Referral (TOSR) for dementia to a memory center suggest a substantial delay of 1-3 years. This delay has a negative impact on both patients' and their caregivers' quality of life. OBJECTIVE: This study aimed to evaluate this delay and the factors associated with it in a cohort of community-dwelling elderly people attending a memory clinic, as well as assess the impact of the Third French National Alzheimer Plan (2008-2012)...
June 5, 2017: Revue Neurologique
https://www.readbyqxmd.com/read/28363827/a-multi-parameter-response-prediction-model-for-rituximab-in-rheumatoid-arthritis
#15
Tamarah D de Jong, Jérémie Sellam, Rabia Agca, Saskia Vosslamber, Birgit I Witte, Michel Tsang-A-Sjoe, Elise Mantel, Johannes W Bijlsma, Alexandre E Voskuyl, Mike T Nurmohamed, Cornelis L Verweij, Xavier Mariette
OBJECTIVES: To validate the IFN response gene (IRG) set for the prediction of non-response to rituximab in rheumatoid arthritis (RA) and assess the predictive performance upon combination of this gene set with clinical parameters. METHODS: In two independent cohorts of 93 (Cohort I) and 133 (Cohort II) rituximab-starting RA patients, baseline peripheral blood expression of eight IRGs was determined, and averaged into an IFN score. Predictive performance of IFN score and clinical parameters was assessed by logistic regression...
March 28, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28351377/tissue-and-time-specific-expression-pattern-of-interferon-regulated-genes-in-the-chicken
#16
Susanne Röll, Stefan Härtle, Thomas Lütteke, Bernd Kaspers, Sonja Härtle
BACKGROUND: Type I interferons are major players against viral infections and mediate their function by the induction of Interferon regulated genes (IRGs). Recently, it became obvious that these cytokines have a multitude of additional functions. Due to the unique features of the chickens' immune system, available data from mouse models are not easily transferable; hence we performed an extensive analysis of chicken IRGs. RESULTS: A broad database search for homologues to described mammalian IRGs (common IRGs, cIRGs) was combined with a transcriptome analysis of spleen and lung at different time points after application of IFNα...
March 28, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28270217/dcytb-is-a-predictor-of-outcome-in-breast-cancer-that-functions-via-iron-independent-mechanisms
#17
David J Lemler, Miranda L Lynch, Lia Tesfay, Zhiyong Deng, Bibbin T Paul, Xiaohong Wang, Poornima Hegde, David H Manz, Suzy V Torti, Frank M Torti
BACKGROUND: Duodenal cytochrome b (DCYTB) is a ferrireductase that functions together with divalent metal transporter 1 (DMT1) to mediate dietary iron reduction and uptake in the duodenum. DCYTB is also a member of a 16-gene iron regulatory gene signature (IRGS) that predicts metastasis-free survival in breast cancer patients. To better understand the relationship between DCYTB and breast cancer, we explored in detail the prognostic significance and molecular function of DCYTB in breast cancer...
March 7, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28207896/rna-seq-analysis-of-chikungunya-virus-infection-and-identification-of-granzyme-a-as-a-major-promoter-of-arthritic-inflammation
#18
Jane A C Wilson, Natalie A Prow, Wayne A Schroder, Jonathan J Ellis, Helen E Cumming, Linden J Gearing, Yee Suan Poo, Adam Taylor, Paul J Hertzog, Francesca Di Giallonardo, Linda Hueston, Roger Le Grand, Bing Tang, Thuy T Le, Joy Gardner, Suresh Mahalingam, Pierre Roques, Phillip I Bird, Andreas Suhrbier
Chikungunya virus (CHIKV) is an arthritogenic alphavirus causing epidemics of acute and chronic arthritic disease. Herein we describe a comprehensive RNA-Seq analysis of feet and lymph nodes at peak viraemia (day 2 post infection), acute arthritis (day 7) and chronic disease (day 30) in the CHIKV adult wild-type mouse model. Genes previously shown to be up-regulated in CHIKV patients were also up-regulated in the mouse model. CHIKV sequence information was also obtained with up to ≈8% of the reads mapping to the viral genome; however, no adaptive viral genome changes were apparent...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28196094/innate-immunity-mediated-longevity-and-longevity-induced-by-germ-cell-removal-converge-on-the-c-type-lectin-domain-protein-irg-7
#19
Elad Yunger, Modi Safra, Mor Levi-Ferber, Anat Haviv-Chesner, Sivan Henis-Korenblit
In C. elegans, removal of the germline triggers molecular events in the neighboring intestine, which sends an anti-aging signal to the rest of the animal. In this study, we identified an innate immunity related gene, named irg-7, as a novel mediator of longevity in germlineless animals. We consider irg-7 to be an integral downstream component of the germline longevity pathway because its expression increases upon germ cell removal and its depletion interferes with the activation of the longevity-promoting transcription factors DAF-16 and DAF-12 in germlineless animals...
February 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28154172/metabolic-alterations-contribute-to-enhanced-inflammatory-cytokine-production-in-irgm1-deficient-macrophages
#20
Elyse A Schmidt, Brian E Fee, Stanley C Henry, Amanda G Nichols, Mari L Shinohara, Jeffrey C Rathmell, Nancie J MacIver, Jörn Coers, Olga R Ilkayeva, Timothy R Koves, Gregory A Taylor
The immunity-related GTPases (IRGs) are a family of proteins that are induced by interferon (IFN)-γ and play pivotal roles in immune and inflammatory responses. IRGs ostensibly function as dynamin-like proteins that bind to intracellular membranes and promote remodeling and trafficking of those membranes. Prior studies have shown that loss of Irgm1 in mice leads to increased lethality to bacterial infections as well as enhanced inflammation to non-infectious stimuli; however, the mechanisms underlying these phenotypes are unclear...
March 17, 2017: Journal of Biological Chemistry
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