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https://www.readbyqxmd.com/read/29334429/superhydrophobic-superhydrophilic-janus-fabrics-reducing-blood-loss
#1
Tang Zhu, Junrong Wu, Ning Zhao, Chao Cai, Zhenchao Qian, Fangfang Si, Heng Luo, Jing Guo, Xuan Lai, Longquan Shao, Jian Xu
Hemostatic fabrics are most commonly used in baseline emergency treatment; however, the unnecessary blood loss due to the excessive blood absorption by traditional superhydrophilic fabrics is overlooked. Herein, for the first time, superhydrophobic/superhydrophilic Janus fabrics (superhydrophobic on one side and superhydrophilic on the other) are proposed: the superhydrophilic part absorbs water in the blood to expedite the clotting while the superhydrophobic part prevents blood from further permeating. Compared with the common counterparts, effective bleeding control with reducing blood loss more than 50% can be achieved while the breathability largely remain by using Janus fabrics...
January 15, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29331427/water-soluble-mercury-ion-sensing-based-on-the-thymine-hg2-thymine-base-pair-using-retroreflective-janus-particle-as-an-optical-signaling-probe
#2
Hyeong Jin Chun, Saemi Kim, Yong Duk Han, Dong Woo Kim, Ka Ram Kim, Hyo-Sop Kim, Jae-Ho Kim, Hyun C Yoon
Herein, we report an optical sensing platform for mercury ions (Hg2+) in water based on the integration of Hg2+-mediated thymine-thymine (T-T) stabilization, a biotinylated stem-loop DNA probe, and a streptavidin-modified retroreflective Janus particle (SA-RJP). Two oligonucleotide probes, including a stem-loop DNA probe and an assistant DNA probe, were utilized. In the absence of Hg2+, the assistant DNA probe does not hybridize with the stem-loop probe due to their T-T mismatch, so the surface-immobilized stem-loop DNA probe remains a closed hairpin structure...
January 6, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29331125/diffusion-influenced-reaction-rates-for-active-sphere-prolate-spheroid-pairs-and-janus-dimers
#3
Sergey D Traytak, Denis S Grebenkov
The purpose of this paper is twofold. First, we provide a concise introduction to the generalized method of separation of variables for solving diffusion problems in canonical domains beyond conventional arrays of spheres. Second, as an important example of its application in the theory of diffusion-influenced reactions, we present an exact solution of the axially symmetric problem on diffusive competition in an array of two active particles (including Janus dumbbells) constructed of a prolate spheroid and a sphere...
January 14, 2018: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29328397/aberrant-expression-of-il-23-il-23r-in-patients-with-breast-cancer-and-its-clinical-significance
#4
Shuhai Sheng, Jinji Zhang, Jianzhong Ai, Xueli Hao, Ruishen Luan
Breast cancer tissues and adjacent tissues were collected from 32 patients who were treated in The Third Hospital of Chengde City. Reverse transcription‑quantitative polymerase chain reaction results demonstrated that, compared with the adjacent tissues, interleukin (IL)‑23/IL‑23 receptor (R) gene expression levels were notably higher in breast cancer tissues. Furthermore, IL‑23 and IL‑23R expression levels were positively correlated with patients' tumor size, TNM stage and metastasis. Recombinant human (rh) IL‑23 (10 ng/ml) was used for the stimulation of the MCF‑7 cell line...
January 12, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328389/mir-375-inhibits-ifn-%C3%AE-induced-programmed-death-1-ligand%C3%A2-1-surface-expression-in-head-and-neck-squamous-cell-carcinoma-cells-by-blocking-jak2-stat1-signaling
#5
Qingwei Wu, Yingying Zhao, Yiyuan Sun, Xiaojun Yan, Peihua Wang
Upregulation of programmed death 1 ligand 1 (PD-L1) in cancer cells and its ligation to PD-1 on T cells facilitates cancer cell escape from immune surveillance. Therapies with PD-1 or PD-L1 antibodies have resulted in marked clinical responses in various cancer types. Hence, modulators that inhibit PD-L1 expression in cancer cells may serve as a novel strategy by which to enhance host immune responses. In the present study, we investigated the effects of miR-375 on PD-L1 expression in head and neck squamous cell carcinoma (HNSCC) cells by qRT-PCR and western blot analyses...
January 2, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29322424/expression-and-purification-of-jak1-and-socs1-for-structural-and-biochemical-studies
#6
Nicholas P D Liau, Jeffrey J Babon
Interferon gamma (IFNγ) is a potent inflammatory and immune cytokine. IFNγ signals via the interferon gamma receptor (IFNGR), which is constitutively bound to Janus Kinase (JAK) 1 and JAK2 via its intracellular domain. These two JAK proteins then initiate the inflammatory signaling cascade. The most potent inhibitor of IFNγ signaling is Suppressor of Cytokine Signaling 1 (SOCS1). SOCS1 negatively regulates IFNγ signaling pathway (and other pathways) by directly inhibiting JAKs. Here, we describe a protocol for the recombinant production and purification of the JAK1 kinase domain and its inhibitor SOCS1, for structural and biochemical studies...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29319092/synthesis-of-u-channelled-spherical-fex-coyni1-y-100-x-janus-colloidal-particles-with-excellent-electromagnetic-wave-absorption-performance
#7
Hao Li, Zhenming Cao, Jiayao Lin, Hui Zhao, Qiaorong Jiang, Zhiyuan Jiang, Honggang Liao, Qin Kuang, Zhaoxiong Xie
Due to their distinctive structure, inherently anisotropic properties and broad applications, Janus colloidal particles have attracted tremendous attention and it is significant to synthesize high yield Janus colloidal particles in a cost-effective and reliable way. On the other hand, due to the expanded electromagnetic interference problems, it is highly desired to develop excellent electromagnetic wave absorbing materials with an ultra-wide absorption bandwidth for practical application. Herein, a confined liquid-solid redox reaction strategy has been developed to fabricate a series of Fex(CoyNi1-y)100-x ternary alloy particles...
January 10, 2018: Nanoscale
https://www.readbyqxmd.com/read/29318092/green-and-red-fluorescent-dyes-for-translational-applications-in-imaging-and-sensing-analytes-a-dual-color-flag
#8
Elisabete Oliveira, Emilia Bértolo, Cristina Núñez, Viviane Pilla, Hugo M Santos, Javier Fernández-Lodeiro, Adrian Fernández-Lodeiro, Jamila Djafari, José Luis Capelo, Carlos Lodeiro
Invited for this month's cover picture is the BIOSCOPE group of Professors Carlos Lodeiro and José Luis Capelo at the REQUIMTE/UCIBIO-LAQv-FCT University NOVA of Lisbon (Portugal), and their collaborators. The cover picture is devoted to Translational Research, and shows the Portuguese Flag represented by the interaction between cells and Janus gold/silver nanoparticles functionalized with rhodamine (red) and Fluorescein (green) dyes as tools for biomedical translational research. Read the full text of their Review at 10...
January 2018: ChemistryOpen
https://www.readbyqxmd.com/read/29317823/european-perspective-on-the-management-of-rheumatoid-arthritis-clinical-utility-of-tofacitinib
#9
REVIEW
Paweł Kawalec, Katarzyna Śladowska, Iwona Malinowska-Lipień, Tomasz Brzostek, Maria Kózka
Xeljanz® (tofacitinib) is an oral small-molecule inhibitor that reversibly inhibits Janus-activated kinase (JAK)-dependent cytokine signaling, thus reducing inflammation. As a result of these mechanisms, effects on the immune system such as a moderate decrease in the total lymphocyte count, a dose-dependent decrease in natural killer (NK) cell count, and an increase in B-cell count have been observed. Therefore, tofacitinib provides an innovative approach to modulating the immune and inflammatory responses in patients with rheumatoid arthritis (RA), which is especially important in individuals who do not respond to tumor necrosis factor inhibitors or show a loss of response over time...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29316631/psoriasis-a-stat3-centric-view
#10
REVIEW
Enzo Calautti, Lidia Avalle, Valeria Poli
Signal Transducer and Activator of Transcription (STAT)3 has recently emerged as a key player in the development and pathogenesis of psoriasis and psoriatic-like inflammatory conditions. Indeed, STAT3 hyperactivation has been reported in virtually every cell type involved in disease initiation and maintenance, and this factor mediates the signal of most cytokines that are involved in disease pathogenesis, including the central Interleukin (IL)-23/IL-17/IL-22 axis. Despite the recent availability of effective biological agents (monoclonal antibodies) against IL-17 and IL-23, which have radically changed the current standard of disease management, the possibility of targeting either STAT3 itself or, even better, the family of upstream activators Janus kinases (JAK1, 2, 3, and TYK2) offers additional therapeutic options...
January 6, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29314645/tofacitinib-with-conventional-synthetic-disease-modifying-antirheumatic-drugs-in-chinese-patients-with-rheumatoid-arthritis-patient-reported-outcomes-from-a-phase-3-randomized-controlled-trial
#11
Zhanguo Li, Yuan An, Houheng Su, Xiangpei Li, Jianhua Xu, Yi Zheng, Guiye Li, Kenneth Kwok, Lisy Wang, Qizhe Wu
AIM: Tofacitinib is an oral Janus kinase inhibitor for the treatment of rheumatoid arthritis (RA). We assess the effect of tofacitinib + conventional synthetic disease-modifying anti rheumatic drugs (csDMARDs) on patient-reported outcomes in Chinese patients with RA and inadequate response to DMARDs. METHODS: This analysis of data from the Phase 3 study ORAL Sync included Chinese patients randomized 4 : 4 : 1 : 1 to receive tofacitinib 5 mg twice daily, tofacitinib 10 mg twice daily, placebo→tofacitinib 5 mg twice daily, or placebo→tofacitinib 10 mg twice daily, with csDMARDs...
January 4, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29313361/arterial-spin-labeling-a-technical-overview
#12
Inger Havsteen, Janus Damm Nybing, Hanne Christensen, Anders F Christensen
Arterial spin labeling (ASL) is a non-invasive magnetic resonance imaging perfusion method based on changes in net-magnetization of blood water. The absence of contrast use and ionizing radiation, renders ASL valuable in hyper-acute settings as a monitoring tool for repeated dynamical measurements during and after intervention, and for patients with known co-morbidities. This text provides a short methodological introduction to ASL and contrasts it with traditional contrast-enhanced perfusion imaging. The review focused on sequence usefulness in the clinical setting of acute cerebral ischemia investigation...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29311136/pharmacokinetics-and-disposition-of-momelotinib-revealed-a-disproportionate-human-metabolite-%C3%A2-resolution-for-clinical-development
#13
Jim Zheng, Yan Xin, Jingyu Zhang, Raju Subramanian, Bernard P Murray, J Andrew Whitney, Matthew R Warr, John Ling, Lisa Moorehead, Ellen Kwan, Jeffrey Hemenway, Bill J Smith, Jeffrey A Silverman
Momelotinib (MMB) is a small molecule inhibitor of Janus kinase (JAK)1/2 and of activin A receptor type 1 (ACVR1), in clinical development for the treatment of myeloproliferative neoplasms. The pharmacokinetics and disposition of [14C]MMB were characterized in a single-dose, human mass balance study. Metabolism and the pharmacologic activity of key metabolites were elucidated in multiple in vitro and in vivo experiments. MMB was rapidly absorbed following oral dosing with approximately 97% of the radioactivity recovered, primarily in feces with urine as a secondary route...
January 8, 2018: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/29306301/microstructure-and-dynamics-of-janus-particles-in-a-phase-separating-medium
#14
Enrico F Semeraro, Rajeev Dattani, Theyencheri Narayanan
The evolution of interactions and dynamics of Janus colloidal particles suspended in quasi-binary liquid mixtures undergoing phase separation is presented. The experimental system consisted of silica-nickel Janus particles dispersed in mixtures of 3-methylpyridine, water, and heavy water. Colloidal microstructure and dynamics were probed by ultra-small-angle X-ray scattering and ultra-small-angle X-ray photon correlation spectroscopy, respectively. The observed static and dynamic behaviors are significantly different from those found for Stöber silica colloids in this mixture...
January 7, 2018: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29305625/ifn-%C3%AE-induces-a-preferential-long-lasting-expression-of-mhc-class-i-in-human-pancreatic-beta-cells
#15
Alexandra Coomans de Brachène, Reinaldo S Dos Santos, Laura Marroqui, Maikel L Colli, Lorella Marselli, Raghavendra G Mirmira, Piero Marchetti, Decio L Eizirik
AIMS/HYPOTHESIS: IFN-α, a cytokine expressed in human islets from individuals affected by type 1 diabetes, plays a key role in the pathogenesis of diabetes by upregulating inflammation, endoplasmic reticulum (ER) stress and MHC class I overexpression, three hallmarks of islet histology in early type 1 diabetes. We tested whether expression of these mediators of beta cell loss is reversible upon IFN-α withdrawal or IFN-α pathway inhibition. METHODS: IFN-α-induced MHC class I overexpression, ER stress and inflammation were evaluated by flow cytometry, immunofluorescence and real-time PCR in human EndoC-βH1 cells or human islets exposed to IFN-α with or without the presence of Janus kinase (JAK) inhibitors...
January 5, 2018: Diabetologia
https://www.readbyqxmd.com/read/29304536/defibrotide-stimulates-angiogenesis-and-protects-endothelial-cells-from-calcineurin-inhibitor-induced-apoptosis-via-upregulation-of-akt-bcl-xl
#16
Xiangmin Wang, Bin Pan, Yuko Hashimoto, Hiroshi Ohkawara, Kailin Xu, Lingyu Zeng, Takayuki Ikezoe
Sinusoidal obstruction syndrome is a life-threatening complication that can occur after haematopoietic stem cell transplantation. Defibrotide (DF) has been approved for the treatment of individuals with severe sinusoidal obstruction syndrome following haematopoietic stem cell transplantation in the European Union and the United States. However, the precise mechanisms by which DF protects endothelial cells remain to be elucidated. In this study, we found that DF stimulated angiogenesis in vitro and in vivo as assessed by vascular tube formation, scratch-wound repair and Matrigel plug assays...
January 2018: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29304122/comprehensive-analysis-of-three-tyk2-gene-variants-in-the-susceptibility-to-chagas-disease-infection-and-cardiomyopathy
#17
Daniel A Leon Rodriguez, Marialbert Acosta-Herrera, F David Carmona, Nuria Dolade, Sofia Vargas, Luis Eduardo Echeverría, Clara Isabel González, Javier Martin
Tyrosine kinase 2 (TYK2) is a member of the Janus kinases family implicated in the signal transduction of type I interferons and several interleukins. It has been described that genetic mutations within TYK2 lead to multiple deleterious effects in the immune response. In this work, we have analyzed three functional independent variants from the frequency spectrum on the TYK2 gene (common and low-frequency variants) suggested to reduce the function of the gene in mediating cytokine signaling and the susceptibility to infections by Trypanosoma cruzi and/or the development of Chagas cardiomyopathy in the Colombian population...
2018: PloS One
https://www.readbyqxmd.com/read/29302720/anti-inflammatory-effect-and-mechanism-of-the-spirocyclopiperazinium-salt-compound-lxm-15-in-rats-and-mice
#18
Xiaoli Gao, Qi Sun, Weiwei Zhang, Yimin Jiang, Runtao Li, Jia Ye
OBJECTIVE: This study aimed to investigate the anti-inflammatory effects of a novel spirocyclopiperazinium salt compound LXM-15, and explore the underlying mechanisms. METHODS: Xylene-induced mouse ear oedema and carrageenan-induced rat paw oedema tests were used to evaluate the anti-inflammatory effects of LXM-15. The protein levels of TNF-α, IL-6, phosphorylation of Janus kinase 2 (JAK2) and signal transducer and activator of transcription 3 (STAT3) were detected by ELISA or Western blot analysis...
January 4, 2018: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29301607/force-mediated-proinvasive-matrix-remodeling-driven-by-tumor-associated-mesenchymal-stem-like-cells-in-glioblastoma
#19
Eun-Jung Lim, Yongjoon Suh, Seungmo Kim, Seok-Gu Kang, Su-Jae Lee
In carcinoma, cancer-associated fibroblasts participate in force-mediated extracellular matrix (ECM) remodeling, consequently leading to invasion of cancer cells. Likewise, the ECM remodeling actively occurs in glioblastoma (GBM) and the consequent microenvironmental stiffness is strongly linked to migration behavior of GBM cells. However, in GBM the stromal cells responsible for force-mediated ECM remodeling remain unidentified. We show that tumor-associated mesenchymal stem-like cells (tMSLCs) provide a proinvasive matrix condition in GBM by force-mediated ECM remodeling...
January 5, 2018: BMB Reports
https://www.readbyqxmd.com/read/29299994/synthesis-and-applications-of-bimetallic-nanoparticles-of-immiscible-elements
#20
Elena A Glazkova, Olga V Bakina, Marat I Lerner, Alexandr V Pervikov
Recent advances in nanotechnology make it possible to create nanomaterials with novel microstructure and physicochemical properties. Different structures of nanoparticles of immiscible elements including Janus, core-shell, binary metallic alloys size of 100 nm with near spherical shapes can be synthesized using chemical, mechanochemical or physical methods. The bimetallic nanoparticles exhibit unique properties which are utilized in the design of efficient applications. The present review is devoted to contemporary state of the studies on the methods to produce bimetallic nanoparticles formed of immiscible metals (BMINPs)...
January 3, 2018: Recent Patents on Nanotechnology
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