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https://www.readbyqxmd.com/read/28655159/two-distinct-metacommunities-characterize-the-gut-microbiota-in-crohn-s-disease-patients
#1
Qing He, Yuan Gao, Zhuye Jie, Xinlei Yu, Janne Marie Laursen, Liang Xiao, Ying Li, Lingling Li, Faming Zhang, Qiang Feng, Xiaoping Li, Jinghong Yu, Chuan Liu, Ping Lan, Ting Yan, Xin Liu, Xun Xu, Huanming Yang, Jian Wang, Lise Madsen, Susanne Brix, Jianping Wang, Karsten Kristiansen, Huijue Jia
Background: The inflammatory intestinal disorder Crohn's disease (CD) has become a health challenge worldwide. The gut microbiota closely interacts with the host immune system, but its functional impact in CD is unclear. Except for studies on a small number of CD patients, analyses of the gut microbiota in CD have used 16S rDNA amplicon sequencing. Here we employed metagenomic shotgun sequencing to provide a detailed characterization of the compositional and functional features of the CD microbiota, comprising also unannotated bacteria, and investigated its modulation by exclusive enteral nutrition (EEN)...
June 26, 2017: GigaScience
https://www.readbyqxmd.com/read/28655067/fatal-ulcerative-enteritis-of-the-small-intestine-in-a-patient-with-ulcerative-colitis-treated-with-vedolizumab
#2
Carmen Monasterio, Annette Schmitt-Gräff, Matthias Pohl, Thomas Truschel, Klaus Warnatz, Wolfgang Kreisel, Robert Thimme, Peter Hasselblatt
Vedolizumab (VDZ) inhibits α4β7 integrins and is used to target intestinal immune responses in patients with inflammatory bowel disease, which is considered to be relatively safe. Here we report on a fatal complication following VDZ administration. A 64-year-old female patient with ulcerative colitis (UC) refractory to tumor necrosis factor inhibitors was treated with VDZ. One week after the second VDZ infusion, she was admitted to hospital with severe diarrhea and systemic inflammatory response syndrome (SIRS)...
June 27, 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28655032/age-related-macular-degeneration-in-patients-with-chronic-myeloproliferative-neoplasms
#3
Marie Bak, Torben Lykke Sørensen, Esben Meulengracht Flachs, Ann-Dorthe Zwisler, Knud Juel, Henrik Frederiksen, Hans Carl Hasselbalch
Importance: It has been suggested that systemic inflammation increases the risk of age-related macular degeneration (AMD). Given that chronic immune modulation is present in patients with myeloproliferative neoplasms (MPNs), the risk of AMD in these patients may be increased. Objective: To compare the risk of AMD in patients with MPNs with the risk of AMD in matched controls from the general population. Design, Setting, and Participants: A nationwide population-based cohort study using Danish registers was conducted of all patients in Denmark who received a diagnosis between January 1, 1994, and December 31, 2013, of essential thrombocythemia, polycythemia vera, myelofibrosis, or unclassifiable MPNs...
June 22, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28654899/tumor-reductive-therapies-and-antitumor-immunity
#4
REVIEW
Huiqin Guo, Kangla Tsung
Tumor reductive therapy is to reduce tumor burden through direct killing of tumor cells. So far, there is no report on the connection between antitumor immunity and tumor reductive therapies. In the last few years, a new category of cancer treatment, immunotherapy, emerged and they are categorized separately from classic cytotoxic treatments (chemo and radiation therapy). The most prominent examples include cellular therapies (LAK and CAR-T) and immune checkpoint inhibitors (anti-PD-1 and CTLA-4). Recent advances in clinical immunotherapy and our understanding of the mechanism behind them revealed that these therapies have a closer relationship with classic cancer treatments than we thought...
June 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28654766/methotrexate-related-lymphoproliferative-disorder-in-patients-with-osteonecrosis-of-the-jaw-a-3-case-report-and-literature-review
#5
Ken Furudate, Anna Satake, Norihiko Narita, Wataru Kobayashi
Patients with immunodeficiency or immunosuppression are at risk of developing a lymphoproliferative disorder (LPD). Methotrexate (MTX) is an iatrogenic cause of LPD, which in up to 50% cases occurs in extranodal sites. The occurrence of MTX-related LPD with osteonecrosis of the jaw (ONJ) has rarely been reported. Moreover, there are no clear diagnostic criteria and treatment strategies for management of these lesions. In the present cases, discontinuing MTX and debridement of the necrotic bone were effective...
June 1, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28654562/cardio-respiratory-events-and-inflammatory-response-after-primary-immunization-in-preterm-infants-32-weeks-gestational-age-a-randomized-controlled-study
#6
Wissal Ben Jmaa, Alfredo I Hernández, Megan Sutherland, Anik Cloutier, Nathalie Germain, Christian Lachance, Brigitte Martin, Marc H Lebel, Patrick Pladys, Anne Monique Nuyt
BACKGROUND: Inflammation may depress respiration in neonates. This study aimed to establish a link between post-immunization inflammation and cardio-respiratory events (CRE). METHODS: Randomized double-blind controlled study of infants born <32 weeks gestation receiving the 2 months vaccine which comprised diphtheria and tetanus toxoids and acellular pertussis adsorbed combined with inactivated poliomyelitis vaccines, and Haemophilus b conjugate and the pneumococcal conjugate 10-valent vaccines...
June 24, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28654554/baseline-hepatitis-b-virus-titer-predicts-initial-postpartum-hepatic-flare-a-multicenter-prospective-study
#7
Jinfeng Liu, Jing Wang, Caijing Qi, Furong Cao, Zhen Tian, Dandan Guo, Taotao Yan, Qian Li, Shujuan Yang, JianJun Fu, Xianmei Tang, Xiaoni Kou, Na Liu, Zicheng Jiang, Yingren Zhao, Tianyan Chen
BACKGROUND AND GOALS: A series of changes in the immune system occur during pregnancy and puerperium. Currently, we aim to characterize both the natural changes in liver inflammation and its association with hepatitis B viremia during this special period. PATIENTS AND METHODS: Chronic hepatitis B (CHB) gravidas were recruited and followed up to 52 weeks postpartum. Virological and biochemical parameters were assessed throughout the period. RESULTS: A total of 1097 CHB mothers had finished the entire follow-up including 451 accepting telbivudine, 178 accepting tenofovir, and 468 without antiviral therapy...
June 26, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28654547/dendritic-cell-vaccination-for-metastatic-melanoma-a-14-year-monoinstitutional-experience
#8
Francesco de Rosa, Laura Ridolfi, Laura Fiammenghi, Massimiliano Petrini, Anna M Granato, Valentina Ancarani, Elena Pancisi, Valentina Soldati, Serena Cassan, Jenny Bulgarelli, Massimo Framarini, Francesca Tauceri, Giuseppe Migliori, Claudia Brolli, Giorgia Gentili, Elisabetta Petracci, Oriana Nanni, Angela Riccobon, Ruggero Ridolfi, Massimo Guidoboni
Although immunomodulating antibodies are highly effective in metastatic melanoma, their toxicity, related to the activation of T lymphocytes, can be severe. Anticancer vaccines promote a fairly specific response and are very well tolerated, but their effectiveness has yet to be demonstrated. We have been treating patients with advanced melanoma with an autologous dendritic cell vaccine since 2001; to better characterize the safety and efficacy of our product, we designed a retrospective study on all of our patients treated with the vaccine to date...
August 2017: Melanoma Research
https://www.readbyqxmd.com/read/28654461/natural-history-pathogenesis-and-treatment-of-evans-syndrome-in-children
#9
Elpis Mantadakis, Evangelia Farmaki
Primary Evans syndrome (ES) is defined by the concurrent or sequential occurrence of immune thrombocytopenia and autoimmune hemolytic anemia in the absence of an underlying etiology. The syndrome is characterized by a chronic, relapsing, and potentially fatal course requiring long-term immunosuppressive therapy. Treatment of ES is hardly evidence-based. Corticosteroids are the mainstay of therapy. Rituximab has emerged as the most widely used second-line treatment, as it can safely achieve high response rates and postpone splenectomy...
June 26, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28654435/myasthenia-gravis-new-developments-in-research-and-treatment
#10
Amelia Evoli
PURPOSE OF REVIEW: Myasthenia gravis, a rare disorder of the neuromuscular transmission, is increasingly acknowledged as a syndrome more than as a single disease. This review summarizes recent advances in pathophysiology which confirm the disease heterogeneity, and may help find disease-targeted and patient-targeted therapies. RECENT FINDINGS: Antibodies to the acetylcholine receptor, the muscle-specific tyrosine kinase and the lipoprotein receptor protein 4, characterize disease subtypes with distinct clinical traits and immune-pathogenic mechanisms...
June 24, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28654060/functional-characterization-of-regulatory-macrophages-that-inhibit-graft-reactive-immunity
#11
Jordi Ochando, Patricia Conde
Macrophage accumulation in transplanted organs has long been recognized as a feature of allograft rejection(1). Immunogenic monocytes infiltrate the allograft early after transplantation, mount a graft reactive response against the transplanted organ, and initiate organ rejection(2). Recent data suggest that suppressive macrophages facilitate successful long-term transplantation(3) and are required for the induction of transplantation tolerance(4). This suggests a multidimensional concept of macrophage ontogeny, activation, and function, which demands a new roadmap for the isolation and analysis of macrophage function(5)...
June 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28654020/effects-of-non-starch-polysaccharides-on-inflammatory-bowel-disease
#12
REVIEW
Ying Nie, Qinlu Lin, Feijun Luo
The incidence of inflammatory bowel disease (IBD) has increased considerably over the past few decades. In the present review, we discuss several disadvantages existing in the treatment of IBD and current understandings of the structures, sources, and natures of various kinds of non-starch polysaccharides (NSPs). Available evidences for the use of different sources of NSPs in IBD treatment both in vitro and in vivo are analyzed, including glucan from oat bran, mushroom, seaweed, pectin, gum, prebiotics, etc...
June 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28654016/salivary-immune-and-metabolic-marker-analysis-simma-a-diagnostic-test-to-predict-caries-risk
#13
Alex Mira, Alejandro Artacho, Anny Camelo-Castillo, Sandra Garcia-Esteban, Aurea Simon-Soro
By using ELISA and colorimetric tests, we have measured 25 compounds in individuals with and without dental caries at different time points of dental biofilm formation and time of the day. We find that some compounds appear to be affected by circadian rhythms, others by dental plaque maturity, and others show constant values during a 24 h period. Using univariate analysis and cross-validation techniques, we have selected six components measured at specific time points that maximize the diagnostic separation of health and disease conditions...
June 27, 2017: Diagnostics
https://www.readbyqxmd.com/read/28654001/profiling-the-extended-cleavage-specificity-of-the-house-dust-mite-protease-allergens-der-p-1-der-p-3-and-der-p-6-for-the-prediction-of-new-cell-surface-protein-substrates
#14
Alain Jacquet, Vincenzo Campisi, Martyna Szpakowska, Marie-Eve Dumez, Moreno Galleni, Andy Chevigné
House dust mite (HDM) protease allergens, through cleavages of critical surface proteins, drastically influence the initiation of the Th2 type immune responses. However, few human protein substrates for HDM proteases have been identified so far, mainly by applying time-consuming target-specific individual studies. Therefore, the identification of substrate repertoires for HDM proteases would represent an unprecedented key step toward a better understanding of the mechanism of HDM allergic response. In this study, phage display screenings using totally or partially randomized nonameric peptide substrate libraries were performed to characterize the extended substrate specificities (P₅-P₄') of the HDM proteases Der p 1, Der p 3 and Der p 6...
June 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28653974/hla-g-3-utr-polymorphisms-predict-drug-induced-g3-4-toxicity-related-to-folinic-acid-5-fluorouracil-oxaliplatin-folfox4-chemotherapy-in-non-metastatic-colorectal-cancer
#15
Marica Garziera, Saverio Virdone, Elena De Mattia, Lucia Scarabel, Erika Cecchin, Jerry Polesel, Mario D'Andrea, Nicoletta Pella, Angela Buonadonna, Adolfo Favaretto, Giuseppe Toffoli
Polymorphisms in drug-metabolizing enzymes might not completely explain inter-individual differences in toxicity profiles of patients with colorectal cancer (CRC) that receive folinic acid/5-fluorouracil/oxaliplatin (FOLFOX4). Recent data indicate that the immune system could contribute to FOLFOX4 outcomes. In light of the immune inhibitory nature of human leukocyte antigen-G (HLA-G), a non-classical major histocompatibility complex (MHC) class I molecule, we aimed to identify novel genomic markers of grades 3 and 4 (G3-4) toxicity related to FOLFOX4 therapy in patients with CRC...
June 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28653896/ganoderma-lucidum-targeting-lung-cancer-signaling-a-review
#16
Balraj Singh Gill, Navgeet, Sanjeev Kumar
Lung cancer causes huge mortality to population, and pharmaceutical companies require new drugs as an alternative either synthetic or natural targeting lung cancer. The conventional therapies cause side effects, and therefore, natural products are used as a therapeutic candidate in lung cancer. Chemical diversity among natural products highlights the impact of evolution and survival of fittest. One such neglected natural product is Ganoderma lucidum used for promoting health and longevity for a longer time...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28653857/anti-inflammatory-treatment-for-major-depressive-disorder-implications-for-patients-with-an-elevated-immune-profile-and-non-responders-to-standard-antidepressant-therapy
#17
Paula Kopschina Feltes, Janine Doorduin, Hans C Klein, Luis Eduardo Juárez-Orozco, Rudi Ajo Dierckx, Cristina M Moriguchi-Jeckel, Erik Fj de Vries
Major depressive disorder (MDD) is a prevalent and disabling psychiatric disease with rates of non-responsiveness to antidepressants ranging from 30-50%. Historically, the monoamine depletion hypothesis has dominated the view on the pathophysiology of depression. However, the lack of responsiveness to antidepressants and treatment resistance suggests that additional mechanisms might play a role. Evidence has shown that a subgroup of depressive patients may have an underlying immune deregulation that could explain the lack of therapeutic benefit from antidepressants...
June 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28653677/monitoring-immune-checkpoint-blockade-response-evaluation-and-biomarker-development
#18
REVIEW
Mizuki Nishino, Nikhil H Ramaiya, Hiroto Hatabu, F Stephen Hodi
Cancer immunotherapy using immune-checkpoint blockade (ICB) has created a paradigm shift in the treatment of advanced-stage cancers. The promising antitumour activity of monoclonal antibodies targeting the immune-checkpoint proteins CTLA-4, PD-1, and PD-L1 led to regulatory approvals of these agents for the treatment of a variety of malignancies. Patients might experience clinical benefits from treatment with these agents, despite unconventional patterns of tumour response that can be misinterpreted as disease progression, warranting a new, specific approach to evaluate responses to immunotherapy...
June 27, 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/28653574/combination-of-sorafenib-and-cytokine-induced-killer-cells-in-metastatic-renal-cell-carcinoma-a-potential-regimen
#19
Yonghao Yang, Hongwei Lin, Lingdi Zhao, Yongping Song, Quanli Gao
Metastatic renal cell carcinoma (MRCC) exhibits primary resistance to both chemotherapy and radiotherapy. As an immunogenic cancer, MRCC is relatively sensitive to immunotherapy such as that with cytokines, immune checkpoint inhibitors and adoptive T-cell therapy. In addition, many targeted agents developed over the past decade exhibit greater efficacy than cytokines and have become the standard first-line therapy for MRCC. Several preclinical studies have shown that the targeted agent sorafenib possesses an immunomodulation function and may be suitable for combination with immunotherapy...
June 2017: Immunotherapy
https://www.readbyqxmd.com/read/28653573/the-future-of-immune-checkpoint-cancer-therapy-after-pd-1-and-ctla-4
#20
Andrew W Hahn, David M Gill, Sumanta K Pal, Neeraj Agarwal
The adaptive immune system plays an important role in eradicating malignant cells. Co-stimulatory and co-inhibitory signals to T cells though immune checkpoint receptors are involved in tumorigenesis and metastasis. Exploitation of immune checkpoint inhibitors, PD-1 and CTLA-4, with monoclonal antibodies has created impressive clinical responses. Many other immune checkpoint co-inhibitors and co-stimulators exist, including the B7 superfamily and tumor necrosis factor receptors superfamily. Here, we will examine co-inhibitors and co-stimulators beyond PD-1 and CTLA-4 that are being investigated in active clinical trials...
June 2017: Immunotherapy
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