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https://www.readbyqxmd.com/read/29688444/identification-of-a-contact-dependent-growth-inhibition-system-in-the-probiotic-escherichia-coli-nissle-1917
#1
Chen Hanna, Fang Qian, Tu Qiang, Liu Chenlang, Yin Jia, Yin Yulong, Xia Liqiu, Bian Xiaoying, Zhang Youming
Contact-dependent growth inhibition (CDI) is a type of competitive mechanisms, and has been identified in various strains including Burkholderia, Dickeya, E. coli, and Yersinia. Classical CDI systems contain three genes, cdiB, cdiA and cdiI. CdiB encoded by cdiB gene is a conserved β-barrel protein and required for export of CdiA. CdiA protein encoded by cdiA gene includes a conserved N-terminal domain, and variable C-terminal toxic domain (CdiA-CT). Immunity protein CdiI binds and inactivates toxin protein CdiA-CT...
April 23, 2018: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29687346/long-term-cognitive-outcomes-after-sepsis-a-translational-systematic-review
#2
REVIEW
Tatiana Barichello, Pavani Sayana, Vijayasree V Giridharan, Anithachristy S Arumanayagam, Boomadevi Narendran, Amanda Della Giustina, Fabricia Petronilho, João Quevedo, Felipe Dal-Pizzol
Sepsis is systemic inflammatory response syndrome with a life-threatening organ dysfunction that is caused by an unbalanced host immune response in an attempt to eliminate invasive microorganisms. We posed questions, "Does sepsis survivor patients have increased risk of neuropsychiatric manifestations?" and "What is the mechanism by which sepsis induces long-term neurological sequelae, particularly substantial cognitive function decline in survivor patients and in pre-clinical sepsis models?" The studies were identified by searching PubMed/MEDLINE (National Library of Medicine), PsycINFO, EMBASE (Ovid), LILACS (Latin American and Caribbean Health Sciences Literature), IBECS (Bibliographical Index in Spanish in Health Sciences), and Web of Science databases for peer-reviewed journals that were published until January 2018...
April 23, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29686675/pathogenetic-and-clinical-aspects-of-anti-neutrophil-cytoplasmic-autoantibody-associated-vasculitides
#3
REVIEW
Peter Lamprecht, Anja Kerstein, Sebastian Klapa, Susanne Schinke, Christian M Karsten, Xinhua Yu, Marc Ehlers, Jörg T Epplen, Konstanze Holl-Ulrich, Thorsten Wiech, Kathrin Kalies, Tanja Lange, Martin Laudien, Tamas Laskay, Timo Gemoll, Udo Schumacher, Sebastian Ullrich, Hauke Busch, Saleh Ibrahim, Nicole Fischer, Katrin Hasselbacher, Ralph Pries, Frank Petersen, Gesche Weppner, Rudolf Manz, Jens Y Humrich, Relana Nieberding, Gabriela Riemekasten, Antje Müller
Anti-neutrophil cytoplasmic autoantibodies (ANCA) targeting proteinase 3 (PR3) and myeloperoxidase expressed by innate immune cells (neutrophils and monocytes) are salient diagnostic and pathogenic features of small vessel vasculitis, comprising granulomatosis with polyangiitis (GPA), microscopic polyangiitis, and eosinophilic GPA. Genetic studies suggest that ANCA-associated vasculitides (AAV) constitute separate diseases, which share common immunological and pathological features, but are otherwise heterogeneous...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29683452/laminar-flow-based-assays-to-investigate-leukocyte-recruitment-on-cultured-vascular-cells-and-adherent-platelets
#4
Tanja Vajen, Alexandra C A Heinzmann, Annemiek Dickhout, Zhen Zhao, Magdolna Nagy, Johan W M Heemskerk, Rory R Koenen
The recruitment of leukocytes upon injury or inflammation to sites of injury or tissue damage has been investigated during recent decades and has resulted in the concept of the leukocyte adhesion cascade. However, the exact molecular mechanisms involved in leukocyte recruitment have not yet been fully identified. Since leukocyte recruitment remains an important subject in the field of infection, inflammation, and (auto-) immune research, we present a straightforward laminar flow-based assay to study underlying mechanisms of the adhesion, de-adhesion, and transmigration of leukocytes under venous and arterial flow regimes...
April 9, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29678738/autochthonous-lactic-acid-bacteria-isolated-from-pig-faeces-in-thailand-show-probiotic-properties-and-antibacterial-activity-against-enteric-pathogenic-bacteria
#5
Wandee Sirichokchatchawan, Puwiya Pupa, Prasert Praechansri, Nutthee Am-In, Somboon Tanasupawat, Piengchan Sonthayanon, Nuvee Prapasarakul
Lactic acid bacteria (LAB) play an important role in pig health and performance that arises from their beneficial impacts on the balance of gastrointestinal microbes, ability to fight enteric pathogens, and capacity to support the immune system. The aim of this study was to evaluate the functional and safety aspects of five previously isolated autochthonous LAB strains, (Lactobacillus plantarum 22F, 25F and 31F, Pediococcus acidilactici 72N and Pediococcus pentosaceus 77F) from pig faeces as potential probiotics for a pig feed supplement...
April 17, 2018: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29678394/-dermatologic-toxicities-of-immune-checkpoint-inhibitors
#6
REVIEW
V Sibaud, S Boulinguez, C Pagès, L Riffaud, L Lamant, C Chira, S Boyrie, E Vigarios, E Tournier, N Meyer
The development of immune checkpoint inhibitors (monoclonal antibodies targeting PD-1/PD-L1 or CTLA-4) represents a significant advance in the treatment of multiple cancers. Given their particular mechanism of action, which involves triggering CD4+/CD8+ T-cell activation and proliferation, they are associated with a specific safety profile. Their adverse events are primarily immune-related, and can affect practically all organs. In this context, dermatological toxicity is the most common, though it mostly remains mild to moderate and does not require discontinuation of treatment...
April 17, 2018: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/29674502/dissecting-the-pathophysiology-of-immune-thrombotic-thrombocytopenic-purpura-interplay-between-genes-and-environmental-triggers
#7
Johana Hrdinová, Silvia D'Angelo, Nuno A G Graça, Bogac Ercig, Karen Vanhoorelbeke, Agnès Veyradier, Jan Voorberg, Paul Coppo
Although outstanding progress has been made in comprehending the pathophysiology of thrombotic thrombocytopenic purpura, our understanding of the immunopathogenesis of the disease is only in its earlier stage. Anti-ADAMTS13 auto-antibodies were shown to block proteolysis of von Willebrand factor and/or induce ADAMTS13 clearance from the circulation. However, which immune cells are involved in the production of anti-ADAMTS13 autoantibodies and hence account for the remarkable efficacy of the B-cell depleting agents in this disease, remain to be identified...
April 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29673649/auto-immune-disorders-in-a-child-with-pik3cd-variant-and-22q13-deletion
#8
Kyoko Kiyota, Koh-Ichiro Yoshiura, Ryoko Houbara, Hiroaki Miyahara, Seigo Korematsu, Kenji Ihara
22q13 deletion syndrome is a genetic disorder caused by the deletion or disruption of the segment of the long arm of chromosome 22. The characteristic clinical features of this syndrome include delayed expressive speech, autistic behavior and hypotonia, and clinically severe complications associated with autoimmunity are rarely reported. We herein report a girl with 22q13 deletion syndrome complicated with multiple inflammatory and autoimmune diseases during early childhood. We performed whole-exome sequencing to identify the genes responsible for her autoimmune diseases and identified the de novo variant p...
April 16, 2018: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29672443/belatacept-and-auto-immune-adverse-events
#9
Simon Ville, Diego Cantarovich
No abstract text is available yet for this article.
April 18, 2018: Transplantation
https://www.readbyqxmd.com/read/29670622/immune-reconstitution-after-autologous-hematopoietic-stem-cell-transplantation-in-crohn-s-disease-current-status-and-future-directions-a-review-on-behalf-of-the-ebmt-autoimmune-diseases-working-party-and-the-autologous-stem-cell-transplantation-in-refractory
#10
REVIEW
Alan Graham Pockley, James O Lindsay, Gemma A Foulds, Sergio Rutella, John G Gribben, Tobias Alexander, John A Snowden
Patients with treatment refractory Crohn's disease (CD) suffer debilitating symptoms, poor quality of life, and reduced work productivity. Surgery to resect inflamed and fibrotic intestine may mandate creation of a stoma and is often declined by patients. Such patients continue to be exposed to medical therapy that is ineffective, often expensive and still associated with a burden of adverse effects. Over the last two decades, autologous hematopoietic stem cell transplantation (auto-HSCT) has emerged as a promising treatment option for patients with severe autoimmune diseases (ADs)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29666475/lincrna-cox2-regulates-nlrp3-inflammasome-and-autophagy-mediated-neuroinflammation
#11
Zhenyi Xue, Zimu Zhang, Hongkun Liu, Wen Li, Xiangdong Guo, Zhihui Zhang, Ying Liu, Long Jia, Yan Li, Yinghui Ren, Hongwei Yang, Lijuan Zhang, Qi Zhang, Yurong Da, Junwei Hao, Zhi Yao, Rongxin Zhang
Inflammasome activation plays key roles in host defense, but also contributes to the pathogenesis of auto-inflammatory, and neurodegenerative diseases. As autophagy is connected with both the innate and adaptive immune systems, autophagic dysfunction is also closely related to inflammation, infection, and neurodegeneration. Here we identify that lincRNA-Cox2, previously known as a mediator of both the activation and repression of immune genes expression in innate immune cells, could bind NF-κB p65 and promote its nuclear translocation and transcription, modulating the expression of inflammasome sensor NLRP3 and adaptor ASC...
April 17, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29664086/a-microfluidic-biochip-platform-for-electrical-quantification-of-proteins
#12
Enrique Valera, Jacob Berger, Umer Hassan, Tanmay Ghonge, Julia Liu, Michael Rappleye, Jackson Winter, Daniel Abboud, Zeeshan Haidry, Ryan Healey, Na-Teng Hung, Nathaniel Leung, Naif Mansury, Alexander Hasnain, Christine Lannon, Zachary Price, Karen White, Rashid Bashir
Sepsis, an adverse auto-immune response to an infection often causing life-threatening complications, results in the highest mortality and treatment cost of any illness in US hospitals. Several immune biomarker levels, including Interleukin 6 (IL-6), have shown a high correlation to the onset and progression of sepsis. Currently, no technology diagnoses and stratifies sepsis progression using biomarker levels. This paper reports a microfluidic biochip platform to detect proteins in undiluted human plasma samples...
April 17, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/29651914/inflammatory-pathways-are-central-to-posterior-cerebrovascular-artery-remodelling-prior-to-the-onset-of-congenital-hypertension
#13
Dawid Walas, Karol Nowicki-Osuch, Dominic Alibhai, Eva von Linstow Roloff, Jane Coghill, Christy Waterfall, Julian Fr Paton
Cerebral artery hypoperfusion may provide the basis for linking ischemic stroke with hypertension. Brain hypoperfusion may induce hypertension that may serve as an auto-protective mechanism to prevent ischemic stroke. We hypothesised that hypertension is caused by remodelling of the cerebral arteries, which is triggered by inflammation. We used a congenital rat model of hypertension and examined age-related changes in gene expression of the cerebral arteries using RNA sequencing. Prior to hypertension, we found changes in signalling pathways associated with the immune system and fibrosis...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29650300/-surgical-treatment-of-an-auto-immune-hemolytic-anemia
#14
J-P Martellosio, C Landron, S Milin, R Sarfati, F Arrivé, C Beuvon, P Roblot
INTRODUCTION: Auto-immune hemolytic anemia (AIHA) is a rare cause of anemia, characterized by autoantibodies directed against self red blood cells. It can be primary or secondary, in particular due to lymphoproliferative diseases. CASE REPORT: We report the case of a 24-year-old woman who presented with a severe macrocytic anemia associated with an ovarian teratoma. CONCLUSION: Ovarian teratoma is a rare cause of secondary AIHA, with only few cases reported...
April 9, 2018: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/29650243/testicular-macrophages-guardians-of-fertility
#15
Noushin Mossadegh-Keller, Michael H Sieweke
Macrophages are innate immune cells present in essentially every organ of the body with dedicated tissue specific functions. We will present in this review the unique properties and functions of macrophage populations residing in the testis, an immune-privileged organ. Testicular macrophages (tMΦ) could be seen as guardians of fertility due to their immunosuppressive functions protecting spermatogenesis from auto immune-attack. They exhibit testis specific functions with essential roles in normal testis homeostasis and fetal testicular development...
April 3, 2018: Cellular Immunology
https://www.readbyqxmd.com/read/29623452/rhabdomyolysis-secondary-to-systemic-lupus-erythematosus
#16
Daniel Nguyen, Farah Alsaati, Jena Deitrick, Kamel Azhar, Evelyn Sbar
Systemic lupus erythematous (SLE) is a systemic auto-immune disorder with a variety of presentations and wide spread organ involvement. We present a case report of a patient with an SLE exacerbation as well as concurrent rhabdomyolysis with massively elevated CPK (304,700 U/L). Though a rarely reported effect of SLE, rhabdomyolysis can be severe and potentially lethal secondary or concurrent to an acute SLE episode. This case report demonstrates the association between SLE and rhabdomyolysis, which is not well described in the current literature...
April 6, 2018: Auto- Immunity Highlights
https://www.readbyqxmd.com/read/29616417/anti-inflammatory-monocytes-interplay-of-innate-and-adaptive-immunity
#17
REVIEW
Georg Varga, Dirk Foell
Monocytes are central to our health as they contribute to both hemispheres of our immune system, the innate and the adaptive arm. Sensing signals from the outside world, monocytes govern the innate immunity by initiating inflammation, e.g., through production of IL-1β. Uncontrolled and sustained inflammation, however, leads to auto-inflammatory syndromes and sometimes to autoimmune diseases. Monocytes can be a driving force for the establishment of such diseases when their ability to also contribute to the resolution of inflammation is impaired...
April 3, 2018: Molecular and Cellular Pediatrics
https://www.readbyqxmd.com/read/29610677/potential-association-of-lmna-associated-generalized-lipodystrophy-with-juvenile-dermatomyositis
#18
Melis Sahinoz, Shafaq Khairi, Ashley Cuttitta, Graham F Brady, Amit Rupani, Rasimcan Meral, Marwan K Tayeh, Peedikayil Thomas, Meredith Riebschleger, Sandra Camelo-Piragua, Jeffrey W Innis, M Bishr Omary, Daniel E Michele, Elif A Oral
Background: Juvenile dermatomyositis (JDM) is an auto-immune muscle disease which presents with skin manifestations and muscle weakness. At least 10% of the patients with JDM present with acquired lipodystrophy. Laminopathies are caused by mutations in the lamin genes and cover a wide spectrum of diseases including muscular dystrophies and lipodystrophy. The p.T10I LMNA variant is associated with a phenotype of generalized lipodystrophy that has also been called atypical progeroid syndrome...
2018: Clinical Diabetes and Endocrinology
https://www.readbyqxmd.com/read/29605448/neutrophils-and-redox-stress-in-the-pathogenesis-of-autoimmune-disease
#19
REVIEW
Laurence Glennon-Alty, Angela P Hackett, Elinor A Chapman, Helen L Wright
Polymorphonuclear leukocytes, or neutrophils, are specialist phagocytic cells of the innate immune system. Their primary role is host defence against micro-organisms, which they kill via phagocytosis, followed by release of reactive oxygen species (ROS) and proteolytic enzymes within the phagosome. ROS are generated via the action of the NADPH oxidase (also known as NOX2), in a process termed the 'Respiratory Burst'. This process consumes large amounts of oxygen, which is converted into the highly-reactive superoxide radical O2 - and H2 O2 ...
March 29, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29599802/tuberculosis-induced-autoimmune-haemolytic-anaemia-a-systematic-review-to-find-out-common-clinical-presentations-investigation-findings-and-the-treatment-options
#20
REVIEW
Devarajan Rathish, Sisira Siribaddana
Background: Tuberculosis induced autoimmune haemolytic anaemia is a rare entity. The aim of this study was to explore its common presentations, investigation findings and treatment options through a systematic review of published reports. Methods: PubMed, Trip, Google Scholar, Science Direct, Cochrane Library, Open-Grey, Grey literature report and the reference lists of the selected articles were searched for case reports in English on tuberculosis induced auto-immune haemolytic anaemia...
2018: Allergy, Asthma, and Clinical Immunology
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