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https://www.readbyqxmd.com/read/29153414/association-of-interleukin-1-receptor-like-1-gene-polymorphisms-with-eosinophilic-phenotype-in-japanese-adults-with-asthma
#1
Hideki Inoue, Isao Ito, Akio Niimi, Hisako Matsumoto, Tsuyoshi Oguma, Tomoko Tajiri, Toshiyuki Iwata, Tadao Nagasaki, Yoshihiro Kanemitsu, Toshitaka Morishima, Tomomitsu Hirota, Mayumi Tamari, Sally E Wenzel, Michiaki Mishima
BACKGROUND: IL1RL1 (ST2) is involved in Th2 inflammation including eosinophil activation. Single nucleotide polymorphisms (SNPs) of the IL1RL1 gene are associated with asthma development and increased peripheral blood eosinophil counts. However, the association between IL1RL1 SNPs and eosinophilic phenotype among adults with asthma remains unexplored. METHODS: In a primary cohort of 110 adult Japanese patients with stable asthma, we examined the associations between IL1RL1 SNPs and clinical measurements including forced expiratory volume (FEV1), airway reversibility of FEV1, exhaled nitric oxide (FeNO), serum soluble-ST2 (sST2) levels, peripheral blood eosinophil differentials and serum total IgE level...
November 2017: Respiratory Investigation
https://www.readbyqxmd.com/read/29153199/soluble-st2-in-heart-failure
#2
REVIEW
Cian P McCarthy, James L Januzzi
Suppression of tumorigenicity 2 (ST2) is a member of the interleukin (IL)-1 receptor family, whose role was originally established in the context of inflammatory and autoimmune diseases. More recently, testing for ST2 has been used in the setting of cardiovascular disease. The soluble form of ST2 is a decoy receptor that inhibits beneficial cardioprotective effects of IL-33; such inhibition results in cardiac hypertrophy, myocardial fibrosis, and ventricular dysfunction. Measurement of soluble ST2 has utility for assessing heart failure severity and prognosis...
January 2018: Heart Failure Clinics
https://www.readbyqxmd.com/read/29147584/il-33-acts-to-express-schaffer-collateral-ca1-ltp-and-regulate-learning-and-memory-by-targeting-myd88
#3
Tomoyuki Nishizaki
Interleukin-33 (IL-33) is recognized to transmit a signal through a heterodimeric receptor complex ST2/interleukin-1 receptor accessory protein (IL-1RAcP) bearing activation of myeloid differentiation factor 88 (MyD88). High-frequency stimulation to the Schaffer collateral induced long-term potentiation (LTP) in the CA1 region of hippocampal slices from wild-type control mice. Schaffer collateral/CA1 LTP in IL-33-deficient mice was significantly suppressed, which was neutralized by application with IL-33. Similar suppression of the LTP was found with MyD88-deficient mice but not with ST2-deficient mice...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/29146682/magnitude-of-soluble-st2-as-a-novel-biomarker-for-acute-aortic-dissection
#4
Yuan Wang, Xin Tan, Hai Gao, Hui Yuan, Rong Hu, Lixin Jia, Junming Zhu, Lizhong Sun, Hongjia Zhang, Lianjun Huang, Dong Zhao, Pei Gao, Jie Du
Background -Misdiagnosis of acute aortic dissection (AAD) can lead to significant morbidity and death. Soluble ST2 (sST2) is a cardiovascular injury-related biomarker. The extent to which sST2 is elevated in AAD and whether sST2 can discriminate AAD from other causes of sudden-onset severe chest pain is unknown. Methods -We measured plasma concentrations of sST2 (R&D systems assay) in 1360 patients, including 1027 participants in the retrospective discovery set and 333 patients with initial suspicion of AAD enrolled in the prospective validation cohort...
November 16, 2017: Circulation
https://www.readbyqxmd.com/read/29146574/mast-cell-dependent-il-33-st2-signaling-is-protective-against-the-development-of-airway-hyperresponsiveness-in-a-house-dust-mite-mouse-model-of-asthma
#5
Anna Maria Zoltowska Nilsson, Ying Lei, Mikael Adner, Gunnar P Nilsson
Interleukin-33 (IL-33) and its receptor ST2 have been influentially associated to the pathophysiology of asthma. Due to the divergent roles of IL-33 in regulating mast cell functions, there is a need to further characterize IL-33/ST2-dependent mast cell responses and their significance in the context of asthma. This study aimed to investigate how IL-33/ST2-dependent mast cell responses contribute to the development of airway hyperresponsiveness (AHR) and airway inflammation in a mouse model of house dust mite (HDM) induced asthma...
November 16, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29133293/il-33-responsive-group-2-innate-lymphoid-cells-are-regulated-by-female-sex-hormones-in-the-uterus
#6
Kathleen Bartemes, Chien-Chang Chen, Koji Iijima, Li Drake, Hirohito Kita
Group 2 innate lymphoid cells (ILC2s) reside in multiple organs in the body, where they play roles in immunity, tissue homeostasis, and metabolic regulation. However, little is known about the regulatory mechanisms of ILC2s in different organs. Here, we identified ILC2s in the mouse uterus and found that they express cell surface molecules, including the IL-33 receptor, ST2, that are roughly comparable to those expressed by lung ILC2s. Both in vivo and in vitro treatment with IL-33 induced type 2 cytokine production in uterine ILC2s, suggesting that they respond to IL-33 in a manner similar to ILC2s in other organs...
November 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29132961/title-experimental-asthma-persists-in-il33-receptor-knockout-mice-due-to-the-emergence-of-a-tslp-driven-il9-and-il13-ilc2-subpopulations
#7
Mukesh Verma, Sucai Liu, Lidia Michalec, Anand Sripada, Magdalena M Gorska, Rafeul Alam
BACKGROUND: IL33 plays an important role in development of experimental asthma. OBJECTIVE: To study the role of the IL33 receptor (ST2) in persistence of asthma in a mouse model. METHODS: We studied allergen-induced experimental asthma in ST2 knockout (KO) and wild-type control mice. We measured airway hyperresponsiveness (AHR) by flexivent, inflammatory indices by ELISA, histology and real-time PCR, and ILC2s in lung single cell preparations by flow cytometry...
November 10, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29129581/eoe-genetic-susceptibility-is-mediated-by-synergistic-interactions-between-eoe-specific-and-general-atopic-disease-loci
#8
L J Martin, H He, M H Collins, J P Abonia, J M Biagini Myers, M Eby, H E Johansson, L C Kottyan, G K Khurana Hershey, M E Rothenberg
BACKGROUND: Eosinophilic esophagitis (EoE) is an esophageal inflammatory disease associated with atopic diseases. TSLP and CAPN14 genetic variation contribute to EoE, but how this relates to atopy is unclear. The purpose of this study was to explore the relationship between EoE, atopy and genetic risk. METHODS: EoE-atopy enrichment was tested using 700 EoE cases and 801 community controls. Probing 372 SNPs in 63 atopy-genes, we evaluated EoE associations using 412 non-atopic and 868 atopic disease controls...
November 9, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29126996/blastocystis-genetic-diversity-among-children-of-low-income-daycare-center-in-southeastern-brazil
#9
Ana Paula Oliveira-Arbex, Érica Boarato David, Semíramis Guimarães
Blastocystis, an unicellular anaerobic eukaryote, is known to be a very common intestinal parasite found in humans and animals fecal samples worldwide. Currently, there is an increasing interest to yield insights into its prevalence and diversity in human populations living in poor and deprived areas. In this study, we describe the prevalence and genetic variability of Blastocystis isolates obtained from daycare center attendees aged 0 to 6years and staff, as well as some children family members and their dogs in a low-income community in São Paulo State, Brazil...
November 7, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29118941/prevalence-and-subtype-identification-of-blastocystis-isolated-from-humans-in-ahvaz-southwestern-iran
#10
Roya Salehi, Ali Haghighi, C Rune Stensvold, Farnaz Kheirandish, Eznelloah Azargashb, Saber Raeghi, Cobra Kohansal, Fares Bahrami
Aim: The aim of the present study was to determine the prevalence and subtype distribution of Blastocystis and its relation with demographic data and symptoms in humans referred to medical centers in Ahvaz 2014-2015. Background: Infections with intestinal parasites are one of the most important threats to human health worldwide, especially in tropical and subtropical areas. Blastocystis sp. is a common parasite of humans with a vast variety of non-human hosts. We aimed to study the prevalence and subtypes of Blastocystis sp...
2017: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/29104651/preliminary-screening-of-type-iv-secretion-system-in-divergent-geographic-sources-of-clostridium-difficile
#11
Na Li, Hongbing Jia, Hui Yang, Bing Ji, Yongyun Liu, Xinguo Peng, Ying Cheng, Wen Zhang
In the present study, different geographical sources and sequence types (STs) of Clostridium difficile were preliminarily screened to investigate the distribution profiles of three core genes, VirB4, VirB6 and VirD4, of the type IV secretion system (T4SS). A total of 37 C. difficile strains from different sources were screened, inoculated and prepared for genome extraction. C. difficile toxins A and B were subjected to identification and multilocus sequence typing (MLST) analysis. The T4SS gene then underwent polymerase chain reaction amplification and sequencing analysis...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29096810/soluble-st2-for-prognosis-and-monitoring%C3%A2-in-heart-failure-the-new-gold-standard
#12
EDITORIAL
Antoni Bayés-Genís, Julio Núñez, Josep Lupón
No abstract text is available yet for this article.
November 7, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29096809/prognostic-value-of-serial-st2-measurements-in-patients-with-acute-heart-failure
#13
MULTICENTER STUDY
Laura C van Vark, Ivonne Lesman-Leegte, Sara J Baart, Douwe Postmus, Yigal M Pinto, Joke G Orsel, B Daan Westenbrink, Hans P Brunner-la Rocca, Addy J M van Miltenburg, Eric Boersma, Hans L Hillege, K Martijn Akkerhuis
BACKGROUND: Several clinical studies have evaluated the association between ST2 and outcome in patients with heart failure (HF). However, little is known about the predictive value of frequently measured ST2 levels in patients with acute HF. OBJECTIVES: This study sought to describe the prognostic value of baseline and repeated ST2 measurements in patients with acute HF. METHODS: In the TRIUMPH (Translational Initiative on Unique and novel strategies for Management of Patients with Heart failure) clinical cohort study, 496 patients with acute HF were enrolled in 14 hospitals in the Netherlands between 2009 and 2014...
November 7, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29092052/long-lasting-successful-dissemination-of-resistance-to-oxazolidinones-in-mdr-staphylococcus-epidermidis-clinical-isolates-in-a-tertiary-care-hospital-in-france
#14
Laurent Dortet, Philippe Glaser, Najiby Kassis-Chikhani, Delphine Girlich, Philippe Ichai, Marc Boudon, Didier Samuel, Elodie Creton, Dilek Imanci, Rémy Bonnin, Nicolas Fortineau, Thierry Naas
Objectives: Patient- and procedure-related changes in modern medicine have turned CoNS into one of the major nosocomial pathogens. Treatments of CoNS infections are challenging owing to the large proportion of MDR strains and oxazolidinones often remain the last active antimicrobial molecules. Here, we have investigated a long-lasting outbreak (2010-13) due to methicillin- and linezolid-resistant (LR) CoNS (n = 168), involving 72 carriers and 49 infected patients. Methods: Antimicrobial susceptibilities were tested by the disc diffusion method and MICs were determined by broth microdilution or Etest...
October 30, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29076792/targeting-il-33-st2-signaling-regulation-of-immune-function-and-analgesia
#15
Victor Fattori, Miriam S N Hohmann, Ana C Rossaneis, Marilia F Manchope, Jose C Alves-Filho, Thiago M Cunha, Fernando Q Cunha, Waldiceu A Verri
IL-33 signals through ST2 receptor and promotes inflammation by activating downstream pathways culminating in the production of pro-inflammatory mediators such as IL-1β, TNF-α, and IL-6 in an NF-κB-dependent manner. In fact, compelling evidence has demonstrated the importance of IL-33/ST2 in both innate and adaptive immune responses in diseases presenting pain as an important clinical symptom. Areas covered: IL-33 is a pleiotropic cytokine with varied immune functions. Dysregulation of this pathway has been described as a key step in varied immune responses...
November 5, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/29075243/acinetobacter-baumannii-virulence-traits-a-comparative-study-of-a-novel-sequence-type-with-other-italian-endemic-international-clones
#16
Cecilia Ambrosi, Daniela Scribano, Marta Aleandri, Carlo Zagaglia, Laura Di Francesco, Lorenza Putignani, Anna Teresa Palamara
Carbapenem-resistant Acinetobacter baumannii (CRAb) have emerged in recent decades as major causes of nosocomial infections. Resistance is mainly due to overexpression of intrinsic and/or acquired carbapenemases, especially oxacillinases (OXA). In Italy, although the sequence type (ST) 2 and the ST78 are the most frequently detected, we recently reported ST632, a single locus variant of ST2. Therefore, this study was aimed at unraveling common bacterial surface virulence factors involved in pathogenesis and antibiotic resistance in representative CRAb of these ST genotypes...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29070053/distribution-of-blastocystis-subtypes-isolated-from-humans-from-an-urban-community-in-rio-de-janeiro-brazil
#17
Carolina Valença Barbosa, Rosemary de Jesus Batista, Ricardo Pereira Igreja, Claudia Masini d'Avila Levy, Heloisa Werneck de Macedo, Helena Lúcia Carneiro Santos
BACKGROUND: Blastocystis is a cosmopolitan protist parasite found in the human gastrointestinal tract and is highly prevalent in developing countries. Recent molecular studies have revealed extensive genetic diversity, which has been classified into different subtypes (STs) based on sequence analysis of small subunit ribosomal RNA gene. Blastocystis is one of the most common fecal parasites in Brazil, but the diversity of subtypes remains unknown in the country. This study aimed to determine the distribution of Blastocystis STs in an urban community in Duque de Caxias, Rio de Janeiro, Brazil...
October 25, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29069643/-repair-treg-cells-in-tissue-injury
#18
Chaoqi Zhang, Lifeng Li, Kexin Feng, Daoyang Fan, Wenhua Xue, Jingli Lu
Studies in mice and humans have elucidated an important role for Tregs in promoting tissue repair and restoring tissue integrity. Emerging evidence has revealed that Tregs promoted wound healing and repair processes at multiple tissue sites, such as the heart, liver, kidney, muscle, lung, bone and central nervous system. The localization of repair Tregs in the lung, muscle and liver exhibited unique phenotypes and functions. Epidermal growth factor receptor, amphiregulin, CD73/CD39 and keratinocyte growth factor are important repair factors that are produced or expressed by repair Tregs; these factors coordinate with parenchymal cells to limit injury and promote repair...
October 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29068593/soluble-st2-protein-and-hospitalizations-due-to-worsening-chronic-heart-failure-during-a-one-year-follow-up-in-a-population-with-reduced-ejection-fraction
#19
Karolina Wojtczak-Soska, Agata Sakowicz, Tadeusz Pietrucha, Kamil Janikowski, Małgorzata Lelonek
BACKGROUND: Hospitalizations due to worsening chronic heart failure (CHF) are common. However, the relationship between a single measurement of soluble ST2 protein (sST2) and the necessity of hospitalization in CHF is still unclear. OBJECTIVES: The aim of this study was to determine the association between a single measurement of sST2 concentration and hospitalizations due to worsening CHF during a one-year follow-up. MATERIAL AND METHODS: The study involved 167 consecutive patients (mean age 63 years, 83% males) with CHF in stable NYHA classes I-III with left ventricular ejection fraction (LVEF) ≤ 45% (median 29...
September 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29067460/stra6-as-a-possible-candidate-gene-for-pathogenesis-of-osteoporosis-from-rna%C3%A2-seq-analysis-of-human-mesenchymal-stem-cells
#20
Insun Song, Yong Jun Choi, Yilan Jin, Jung-Woo Kim, Jeong-Tae Koh, Hyung Min Ji, Seon-Yong Jeong, Ye-Yeon Won, Won Kim, Yoon-Sok Chung
To identify novel candidate genes associated with osteoporosis, RNA‑sequence analysis of human mesenchymal stem cells (hMSCs) from patients with osteoporosis (G3) and osteopenia (G2), and healthy controls (G1) was performed. Differentially expressed genes (DEGs) from among the three groups were identified. DEGs were separated into nine groups according to their gene expression patterns: UU (up and up), UF (up and flat), UD (up and down), FU (flat and up), FF (flat and flat), FD (flat and down), DU (down and up), DF (down and flat), and DD (down and down)...
October 2017: Molecular Medicine Reports
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