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https://www.readbyqxmd.com/read/29683848/effects-of-hiv-art-and-prebiotics-on-the-active-fraction-of-the-gut-microbiota
#1
Simon Deusch, Sergio Serrano-Villar, David Rojo, Mónica Martínez-Martínez, Rafael Bargiela, Jorge F Vázquez-Castellanos, Talía Sainz, Coral Barbas, Andrés Moya, Santiago Moreno, María J Gosalbes, Vicente Estrada, Jana Seifert, Manuel Ferrer
OBJECTIVE: In a recent blinded randomized study, we found that in HIV individuals a short supplementation with prebiotics (scGOS/lcFOS/glutamine) ameliorates dysbiosis of total gut bacteria, particularly among viremic untreated patients. Our study goal was to determine the fraction of the microbiota that becomes active during the intervention and that could provide additional functional information. DESIGN: A total of six healthy individuals, and 16 HIV-infected patients comprising viremic untreated patients (n = 5) and antiretroviral therapy-treated (ART) patients that are further divided into immunological responders (n = 7) and immunological nonresponders (n = 4) completed the 6-week course of prebiotic treatment, including six patients receiving a placebo...
April 19, 2018: AIDS
https://www.readbyqxmd.com/read/29683844/circulating-inflammatory-monocytes-contribute-to-impaired-influenza-vaccine-responses-in-hiv-infected-participants
#2
Varghese K George, Suresh Pallikkuth, Rajendra Pahwa, Lesley de Armas, Stefano Rinaldi, Li Pan, Savita Pahwa
OBJECTIVE: Antibody responses are often impaired in old age and in HIV+ infection despite virologic control with antiretroviral therapy but innate immunologic determinants are not well understood. DESIGN: Monocytes and natural killer cells were examined for relationships to age, HIV infection and influenza vaccine responses. METHODS: Virologically suppressed HIV+ (n = 139) and HIV- (n = 137) participants classified by age as young (18-39 years), middle-aged (40-59 years) and old (≥60 years) were evaluated preinfluenza and postinfluenza vaccination...
April 19, 2018: AIDS
https://www.readbyqxmd.com/read/29683419/haemagglutinin-neuraminidase-from-hpiv3-mediates-human-nk-regulation-of-t-cell-proliferation-via-nkp44-and-nkp46
#3
Samantha McQuaid, Sinead Loughran, Patrick Power, Paula Maguire, Dermot Walls, Maria Grazia Cusi, Claes Orvell, Patricia Johnson
HPIV3 is a respiratory virus causing airway diseases, including pneumonia, croup, and bronchiolitis, during infancy and childhood. Currently there is no effective vaccine or anti-viral therapy for this virus. Studies have suggested that poor T cell proliferation following HPIV3 infection is responsible for impaired immunological memory associated with this virus. We have previously demonstrated that NK cells mediate regulation of T cell proliferation during HPIV3 infection. Here we add to these studies by demonstrating that the regulation of T cell proliferation during HPIV3 infection is mediated via NK receptors NKp44 and NKp46 and involves the surface glycoprotein haemagglutinin-neuraminidase but not the fusion protein of the virus...
April 23, 2018: Journal of General Virology
https://www.readbyqxmd.com/read/29682375/myeloid-sarcoma-after-allogenic-stem-cell-transplantation-for-acute-myeloid-leukemia-successful-consolidation-treatment-approaches-in-two-patients
#4
Silje Johansen, Hilde Kollsete Gjelberg, Aymen Bushra Ahmed, Øystein Bruserud, Håkon Reikvam
Myeloid sarcoma is an extramedullary (EM) manifestation (i.e., manifestation outside the bone marrow) of acute myeloid leukemia (AML); it is assumed to be relatively uncommon and can be the only manifestation of leukemia relapse after allogenic stem cell transplantation (allo-SCT). An EM sarcoma can manifest in any part of the body, although preferentially manifesting in immunological sanctuary sites as a single or multiple tumors. The development of myeloid sarcoma after allo-SCT is associated with certain cytogenetic abnormalities, developing of graft versus host disease (GVHD), and treatment with donor lymphocytes infusion (DLI)...
2018: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/29681195/biologics-for-treating-axial-spondyloarthritis
#5
Alexis Jones, Coziana Ciurtin, Mediola Ismajli, Maria Leandro, Raj Sengupta, Pedro M Machado
Spondyloarthritis (SpA) encompasses a heterogeneous group of diseases sharing genetic, immunological, clinical and imaging features. Axial spondyloarthritis (axSpA) refers to a subgroup characterised predominately by inflammation of the axial skeleton with subsequent symptoms of chronic (often inflammatory) back pain and sacroiliitis. There is a strong association with the major histocompatibility complex (MHC) class I allele human leukocyte antigen (HLA) B27. In the last decade, there has been significant progress in earlier detection of the disease and the molecular mechanisms involved in its pathogenesis...
April 21, 2018: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29680984/serum-sialylation-changes-in-cancer
#6
REVIEW
Zejian Zhang, Manfred Wuhrer, Stephanie Holst
Cancer is a major cause of death in both developing and developed countries. Early detection and efficient therapy can greatly enhance survival. Aberrant glycosylation has been recognized to be one of the hallmarks of cancer as glycans participate in many cancer-associated events. Cancer-associated glycosylation changes often involve sialic acids which play important roles in cell-cell interaction, recognition and immunological response. This review aims at giving a comprehensive overview of the literature on changes of sialylation in serum of cancer patients...
April 21, 2018: Glycoconjugate Journal
https://www.readbyqxmd.com/read/29679740/dissecting-host-cell-death-programs-in-the-pathogenesis-of-influenza
#7
Jeffrey Downey, Erwan Pernet, François Coulombe, Maziar Divangahi
Influenza A virus (IAV) is a pulmonary pathogen, responsible for significant yearly morbidity and mortality. Due to the absence of highly effective antiviral therapies and vaccine, as well as the constant threat of an emerging pandemic strain, there is considerable need to better understand the host-pathogen interactions and the factors that dictate a protective versus detrimental immune response to IAV. Even though evidence of IAV-induced cell death in human pulmonary epithelial and immune cells has been observed for almost a century, very little is known about the consequences of cell death on viral pathogenesis...
April 18, 2018: Microbes and Infection
https://www.readbyqxmd.com/read/29678479/hit-or-miss-a-comprehensive-contemporary-investigation-of-laboratory-tests-for-heparin-induced-thrombocytopenia
#8
Emmanuel J Favaloro, Georgia McCaughan, Soma Mohammed, Kun Kan Edwin Lau, Rosalie Gemmell, Lauren Cavanaugh, Dea Donikian, Mayuko Kondo, Timothy Brighton, Leonardo Pasalic
Heparin induced thrombocytopenia (HIT) is a rare but potentially fatal complication of heparin therapy, which in a proportion of patients causes platelet activation and thrombosis. Initial clinical assessment of the likelihood of HIT is facilitated by laboratory testing to confirm or exclude HIT. This prospective investigation was performed over an 18-month period, and has involved testing of over 300 test samples from over 100 consecutive patients. Clinical assessment by 4T score was supplemented by laboratory tests that comprised both immunological [lateral flow ('STiC'), chemiluminescence (AcuStar; HIT-IgG(PF4-H) ), ELISA (Asserachrom HPIA IgG)] and functional assays [SRA, platelet aggregation using whole blood ('Multiplate') and platelet rich plasma ('LTA')]...
April 17, 2018: Pathology
https://www.readbyqxmd.com/read/29678144/interferon-alpha-as-antiviral-therapy-in-chronic-active-epstein-barr-virus-disease-with-interstitial-pneumonia-case-report
#9
Jacek Roliński, Ewelina Grywalska, Aleksandra Pyzik, Michał Dzik, Violetta Opoka-Winiarska, Agata Surdacka, Maciej Maj, Franciszek Burdan, Michał Pirożyński, Piotr Grabarczyk, Elżbieta Starosławska
BACKGROUND: Chronic active Epstein-Barr virus (EBV) disease (CAEBV) is defined as a severe, progressive lymphoproliferative disorder associated with active EBV infection persisting longer than 6 months and developing in patients without recognised immunodeficiency. Rarely, interstitial pneumonitis (IP) occurs as a serious complication in CAEBV patients. The standard therapeutic regimen for IP in CAEBV has not yet been defined. Although interferon alpha (IFN-alpha) is known to suppress viral DNA replication by affecting its basal promoter activation process, it is rarely used in CAEBV patients...
April 20, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29677472/translating-immunology-into-therapeutic-concepts-for-inflammatory-bowel-disease
#10
Holm H Uhlig, Fiona Powrie
Inflammatory bowel disease (IBD) defines a spectrum of complex disorders. Understanding how environmental risk factors, alterations of the intestinal microbiota, and polygenetic and epigenetic susceptibility impact on immune pathways is key for developing targeted therapies. Mechanistic understanding of polygenic IBD is complemented by Mendelian disorders that present with IBD, pharmacological interventions that cause colitis, autoimmunity, and multiple animal models. Collectively, this multifactorial pathogenesis supports a concept of immune checkpoints that control microbial-host interactions in the gut by modulating innate and adaptive immunity, as well as epithelial and mesenchymal cell responses...
April 26, 2018: Annual Review of Immunology
https://www.readbyqxmd.com/read/29676642/immunomethylomics-a-novel-cancer-risk-prediction-tool
#11
Karl T Kelsey, John K Wiencke
There is emerging evidence that the immune biology associated with lung and other solid tumors, as well as patient immune genetic traits, contributes to individual survival. At this time, dramatic advances in immunologic approaches to the study and management of human cancers are taking place, including lung and head and neck squamous cell carcinoma. However, major obstacles for therapies are the profound immune alterations in blood and in the tumor microenvironment that arise in tandem with the cancer. Although there is a significant current effort underway across the cancer research community to probe the tumor environment to uncover the dynamics of the immune response, little similar work is being done to understand the dynamics of immune alterations in peripheral blood, despite evidence showing the prognostic relevance of the neutrophil/lymphocyte ratio for these cancers...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29676534/consensus-based-european-guidelines-for-treatment-of-atopic-eczema-atopic-dermatitis-in-adults-and-children-part-i
#12
A Wollenberg, S Barbarot, T Bieber, S Christen-Zaech, M Deleuran, A Fink-Wagner, U Gieler, G Girolomoni, S Lau, A Muraro, M Czarnecka-Operacz, T Schäfer, P Schmid-Grendelmeier, D Simon, Z Szalai, J C Szepietowski, A Taïeb, A Torrelo, T Werfel, J Ring
This guideline was developed as a joint interdisciplinary European project, including physicians from all relevant disciplines as well as patients. It is a consensus-based guideline, taking available evidence from other guidelines, systematic reviews and published studies into account. This first part of the guideline covers methods, patient perspective, general measures and avoidance strategies, basic emollient treatment and bathing, dietary intervention, topical anti-inflammatory therapy, phototherapy and antipruritic therapy, whereas the second part covers antimicrobial therapy, systemic treatment, allergen-specific immunotherapy, complementary medicine, psychosomatic counselling and educational interventions...
May 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29676227/chemically-modified-mrna-modified-rna-application-for-treatment-of-achilles-tendon-defects
#13
Elmar Herbst, Florian Imhoff, Peter Föhr, Stefan Milz, Christian Plank, Carsten Rudolph, Günther Hasenpusch, Johannes Geiger, Manish Aneja, Karoline Groth, Stephan Vogt, Andreas Imhoff, Andreas Schmitt
Different regenerative medicine approaches for tendon healing exist. Recently, especially gene therapy gained popularity. However, potential mutagenic and immunologic effects might prevent from translation to clinical research. Chemically modified mRNA (cmRNA) might bypass these limitations of gene therapy. Therefore, the purpose of this study was to evaluate the early healing properties of Achilles tendon defects in rats treated with basic fibroblast growth factor (bFGF) cmRNA. Forty male Lewis rats were used for the study and randomly assigned to the two study groups: 1) treatment with cmRNA coding for bFGF, 2) non-coding cmRNA control...
April 20, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29676072/current-management-of-moderate-to-severe-atopic-dermatitis-a-survey-of-allergists-pediatric-allergists-and-dermatologists-in-korea
#14
Hye Yung Yum, Hyun Hee Kim, Hyun Jung Kim, Woo Kyung Kim, So Yeon Lee, Kapsok Li, Dong Hun Lee
PURPOSE: There is an unmet need for the treatment of moderate-to-severe atopic dermatitis (AD), leading to variation in management strategies. To investigate distinct features and treatment modalities according to physicians' specialties, we collected data on the current treatment approach to moderate-to-severe AD among allergists, pediatric allergists and dermatologists in Korea. METHODS: This questionnaire-based study was administered to physicians from the Korean Academy of Asthma, Allergy and Clinical Immunology (KAAACI), Korean Academy of Pediatric Allergy and Respiratory Disease (KAPARD), and Korean Atopic Dermatitis Association (KADA)...
May 2018: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/29676014/autoinflammatory-disease-in-the-lung
#15
REVIEW
Thomas Scambler, Jonathan Holbrook, Sinisa Savic, Michael F McDermott, Daniel Peckham
Ascertaining the dominant cell type driving an immunological disease is essential to understanding the causal pathology and, therefore, selecting or developing an effective treatment. Classifying immunological diseases in this way has led to successful treatment regimens for many monogenic diseases; however, when the dominant cell type is unclear and there is no obvious causal genetic mutation, then identifying the correct disease classification and appropriate therapy can be challenging. In this review we focus on pulmonary immunological diseases where an innate immune signature has been identified as a predominant aspect of the immunopathology...
April 19, 2018: Immunology
https://www.readbyqxmd.com/read/29674503/dexamethasone-promotes-durable-factor-viii-specific-tolerance-in-hemophilia-a-mice-via-thymic-mechanisms
#16
Maria T Georgescu, Paul C Moorehead, Alice S van Velzen, Kate Nesbitt, Birgit M Reipert, Katharina N Steinitz, Maria Schuster, Christine Hough, David Lillicrap
The development of inhibitory antibodies to factor VIII is the most serious complication of replacement therapy in hemophilia A. Activation of the innate immune system during exposure to this protein contributes to inhibitor development. However, avoidance of factor VIII exposure during innate immune system activation by external stimuli (e.g. vaccines) has not been consistently shown to prevent inhibitors. We hypothesized that dexamethasone, a drug with potent anti-inflammatory effects, could prevent inhibitors by promoting immunologic tolerance to factor VIII in hemophilia A mice...
April 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29674269/alterations-of-eicosanoids-and-related-mediators-in-patients-with-schizophrenia
#17
Dongfang Wang, Xiaoyu Sun, Jingjing Yan, Biao Ren, Bing Cao, Qingbin Lu, Yaqiong Liu, Jing Zeng, Ninghua Huang, Qing Xie, Haiwei Gu, Jingyu Wang
Schizophrenia (SCZ) is a multifactorial psychiatric disorder. Currently, its molecular pathogenesis remains largely unknown, and no reliable test for diagnosis and therapy monitoring is available. Polyunsaturated fatty acids (PUFAs) and their derived eicosanoid signaling abnormalities are relevant to the pathophysiology of schizophrenia. However, comprehensive analysis of eicosanoids and related mediators for schizophrenia is very rare. In this study, we applied a targeted liquid chromatography-mass spectrometry based method to monitor 158 PUFAs, eicosanoids and related mediators from enzyme-dependent or independent pathways, in the serum samples of 109 healthy controls, and 115 schizophrenia patients at baseline and after an 8-week period of antipsychotic therapy...
April 5, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29673063/uv-light-crosslinking-regresses-mature-corneal-blood-and-lymphatic-vessels-and-promotes-subsequent-high-risk-corneal-transplant-survival
#18
Yanhong Hou, Viet Nhat Hung Le, Gábor Tóth, Sebastian Siebelmann, Jens Horstmann, Tim Gabriel, Felix Bock, Claus Cursiefen
Immunological graft rejection is the main complication after corneal transplantation into pathologically prevascularized so-called high risk eyes. Aim of this study was to evaluate whether UV-light crosslinking can regress pathological corneal blood and lymphatic vessels, and thereby improve subsequent graft survival. Using the murine model of suture-induced corneal neovascularization, we found that corneal crosslinking with ultraviolet (UV) A-light and riboflavin regressed both preexisting blood and lymphatic vessels significantly via inducing apoptosis in vascular endothelial cells...
April 19, 2018: American Journal of Transplantation
https://www.readbyqxmd.com/read/29670917/pancreatic-beta-cell-death-novel-potential-mechanisms-in-diabetes-therapy
#19
REVIEW
Joselyn Rojas, Valmore Bermudez, Jim Palmar, María Sofía Martínez, Luis Carlos Olivar, Manuel Nava, Daniel Tomey, Milagros Rojas, Juan Salazar, Carlos Garicano, Manuel Velasco
Purpose of Review: Describing the diverse molecular mechanisms (particularly immunological) involved in the death of the pancreatic beta cell in type 1 and type 2 diabetes mellitus. Recent Findings: Beta cell death is the final event in a series of mechanisms that, up to date, have not been entirely clarified; it represents the pathophysiological mechanism in the natural history of diabetes mellitus. These mechanisms are not limited to an apoptotic process only, which is characteristic of the immune-mediated insulitis in type 1 diabetes mellitus...
2018: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29670880/targeting-tumor-associated-macrophages-as-a-potential-strategy-to-enhance-the-response-to-immune-checkpoint-inhibitors
#20
REVIEW
Luca Cassetta, Takanori Kitamura
Inhibition of immune checkpoint pathways in CD8+ T cell is a promising therapeutic strategy for the treatment of solid tumors that has shown significant anti-tumor effects and is now approved by the FDA to treat patients with melanoma and lung cancer. However the response to this therapy is limited to a certain fraction of patients and tumor types, for reasons still unknown. To ensure success of this treatment, CD8+ T cells, the main target of the checkpoint inhibitors, should exert full cytotoxicity against tumor cells...
2018: Frontiers in Cell and Developmental Biology
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