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https://www.readbyqxmd.com/read/29677715/investigation-of-the-charge-balance-in-green-phosphorescent-organic-light-emitting-diodes-by-controlling-the-mixed-host-emission-layer
#1
Jeonghyun Lee, Pyungho Choi, Minsoo Kim, Kiwon Lim, Younghwan Hyeon, Soonkon Kim, Kwangjun Koo, Sangsoo Kim, Byoungdeog Choi
In this paper, we investigated the use of a mixed host emission layer (MH-EML) in green phosphorescent organic light-emitting diodes (OLEDs). The hole transport type (p-type) material (4,4'-Bis(N-carbazolyl)-1,1'-biphenyl (CBP)) and electron transport type (N-type) material (2,2',2″-(1,3,5-Benzinetriyl)-tris(1-phenyl-1-H-benzimidazole) (TPBi)) were mixed with different ratios. The electrons were easily injected through the lowest unoccupied molecular orbital (LUMO) of TPBi in the mixed host system. Also, holes were confined in the EML because of the deep highest occupied molecular orbital (HOMO) level of TPBi (6...
September 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29670108/down-regulation-of-a-pro-apoptotic-pathway-regulated-by-pcaf-ada3-in-early-stage-gastric-cancer
#2
Daniella Brasacchio, Rita A Busuttil, Tahereh Noori, Ricky W Johnstone, Alex Boussioutas, Joseph A Trapani
The loss of p300/CBP-associated protein (PCAF) expression is associated with poor clinical outcome in gastric cancer, and a potential bio-marker for invasive and aggressive tumors. However, the mechanism linking loss of PCAF to the onset of gastric cancer has not been identified. Given that PCAF and its binding partner transcriptional adaptor protein 3 (ADA3) were recently shown to regulate the intrinsic (mitochondrial) pathway to apoptosis via epigenetic regulation of phosphofurin acidic cluster sorting proteins 1 and 2 (PACS1, PACS2), we analyzed PCAF, ADA3, and PACS1/2 expression in 99 patient-matched surgical samples ranging from normal gastric mucosa, through pre-malignant chronic gastritis and intestinal metaplasia to stage I-III invasive cancers...
April 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29665404/efficacy-of-recombinant-protein-vaccines-for-protection-against-nocardia-seriolae-infection-in-the-largemouth-bass-micropterus-salmoides
#3
Ping-Yueh Ho, Yao-Chung Chen, Shun Maekawa, Hsiang-Hui Hu, An-Wei Tsai, Yung-Fu Chang, Pei-Chi Wang, Shih-Chu Chen
A reverse vaccinology-based survey of potent antigens associated with fish nocardiosis was conducted using the largemouth bass, Micropterus salmoides, with an aim to develop subunit vaccines. The antigens selected from the virulent strain Nocardia seriolae 961113 include the gene products of NGL2579 (GAPDH), NGL5701 (MMP), NGL4377 (OCTase), NGL4486 (ABC transporter), NGL3372 (LLE), NGL3388 (GHf10), NGL6627 (Antigen-85), NGL6696 (Esterase), and NGL6936 (CBP). These antigens were heterologously expressed in E...
April 14, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29662993/conformationally-restricted-bicarbazoles-with-phenylene-bridges-displaying-deep-blue-emission-and-high-triplet-energies-systematic-structure-property-relationships
#4
Iain A Wright, Hameed A Al-Attar, Andrei S Batsanov, Andrew P Monkman, Martin R Bryce
The synthesis is reported of twelve new symmetrical carbazole dimers in which the carbazole units are linked via 1,4-phenylene spacers. There are two distinct series of compounds based on the position on the carbazole ring where the phenylene spacer is attached: this is either at carbazole C(3) (series 1a-1f) or at C(2) (series 2a-2f). The central phenylene ring is substituted with either two methyl, two methoxy or two cyano substituents which impart an intramolecular torsional angle between the phenylene and carbazole rings, thereby limiting the extent of π-conjugation between the carbazole units, and raising the triplet energies of the molecules to ET 2...
April 17, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29655803/role-of-msc-derived-galectin-3-in-the-aml-microenvironment
#5
Peter P Ruvolo, Vivian R Ruvolo, Jared K Burks, YiHua Qiu, Rui-Yu Wang, Elizabeth J Shpall, Leonardo Mirandola, Numsen Hail, Zhihong Zeng, Teresa McQueen, Naval Daver, Sean M Post, Maurizio Chiriva-Internati, Steven M Kornblau, Michael Andreeff
In acute myeloid leukemia (AML), high Galectin 3 (LGALS3) expression is associated with poor prognosis. The role of LGALS3 derived from mesenchymal stromal cells (MSC) in the AML microenvironment is unclear; however, we have recently found high LGALS3 expression in MSC derived from AML patients is associated with relapse. In this study, we used reverse phase protein analysis (RPPA) to correlate LGALS3 expression in AML MSC with 119 other proteins including variants of these proteins such as phosphorylated forms or cleaved forms to identify biologically relevant pathways...
April 12, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29645094/leishmania-amazonensis-downregulates-macrophage-inos-expression-via-histone-deacetylase-1-hdac1-a-novel-parasite-evasion-mechanism
#6
Teresa C Calegari-Silva, Áislan C Vivarini, Renata de M S Pereira, Karina L Dias-Teixeira, Carolina T Rath, Amanda S S Pacheco, Gabrielle B L Silva, Charlene A S Pinto, José V Dos Santos, Alessandra M Saliba, Carlos E P Corbett, Claudia M de Castro Gomes, Nicolas Fasel, Ulisses G Lopes
The induced expression of nitric oxide synthase (iNOS) controls the intracellular growth of Leishmania in infected macrophages. Histones deacetylases (HDACs) negatively regulate gene expression through the formation of complexes containing transcription factors such as NF-κB p50/50. Herein, we demonstrated the occupancy of p50/p50_HDAC1 to iNOS promoter associated with reduced levels of H3K9Ac. Remarkably, we found increased levels of HDAC1 in L. amazonensis-infected macrophages. HDAC1 upregulation was not found in L...
April 12, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29644595/enhanced-bioethanol-production-from-potato-peel-waste-via-consolidated-bioprocessing-with-statistically-optimized-medium
#7
Tahmina Hossain, Abdul Bathen Miah, Siraje Arif Mahmud, Abdullah-Al- Mahin
In this study, an extensive screening was undertaken to isolate some amylolytic microorganisms capable of producing bioethanol from starchy biomass through Consolidated Bioprocessing (CBP). A total of 28 amylolytic microorganisms were isolated, from which 5 isolates were selected based on high α-amylase and glucoamylase activities and identified as Candida wangnamkhiaoensis, Hyphopichia pseudoburtonii (2 isolates), Wickerhamia sp., and Streptomyces drozdowiczii based on 26S rDNA and 16S rDNA sequencing. Wickerhamia sp...
April 12, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29620971/benefits-and-barriers-to-telehealth-credentialing-by-proxy
#8
Annalise Baker-Whitcomb, Jillian Harvey
BACKGROUND: Medical staff credentialing is the time-intensive process of verifying a provider's qualifications before granting privileges within a hospital. This process creates a large administrative barrier for telehealth services, as a large number of providers must be credentialed at each participating originating site within a telehealth network. INTRODUCTION: Despite the availability of a streamlined telehealth credentialing method called Credentialing by Proxy (CBP), a significant number of hospitals still opt for traditional credentialing...
March 13, 2018: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/29619419/tumor-necrosis-factor-%C3%AE-mediated-hepatocyte-apoptosis-stimulates-fibrosis-in-the-steatotic-liver-in-mice
#9
Yosuke Osawa, Ekumi Kojika, Yukiko Hayashi, Masamichi Kimura, Koji Nishikawa, Sachiyo Yoshio, Hiroyoshi Doi, Tatsuya Kanto, Kiminori Kimura
Hepatocyte apoptosis has been implicated in the progression of nonalcoholic steatohepatitis. However, it is unclear whether the induction of tumor necrosis factor (TNF)-α-mediated hepatocyte apoptosis in the simple fatty liver triggers liver fibrosis. To address this question, high-fat diet-fed mice were repeatedly administered D-galactosamine, which increases the sensitivity of hepatocytes to TNF-α-mediated apoptosis. In mice treated with a high-fat diet plus D-galactosamine, hepatocyte apoptosis and liver fibrosis were induced, whereas both apoptosis and fibrosis were inhibited in these mice following gut sterilization with antimicrobials or knockout of TNF-α...
April 2018: Hepatology communications
https://www.readbyqxmd.com/read/29619085/consolidated-bioprocessing-of-butanol-production-from-xylan-by-a-thermophilic-and-butanologenic-thermoanaerobacterium-sp-m5
#10
Yujia Jiang, Dong Guo, Jiasheng Lu, Peter Dürre, Weiliang Dong, Wei Yan, Wenming Zhang, Jiangfeng Ma, Min Jiang, Fengxue Xin
Background: Consolidated bioprocessing (CBP) has attracted increasing attention since it can accomplish hydrolytic enzymes production, lignocellulose degradation and microbial fermentation in one single step. Currently, biobutanol is mainly produced by mesophilic and solventogenic clostridia, such as Clostridium beijerinckii and C. acetobutylicum , which cannot directly utilize lignocellulose, an abundant, renewable and economic feedstock. Hence, metabolic construction or isolation of novel cellulolytic/hemicellulolytic and solventogenic bacteria to achieve direct butanol production from lignocellulose offers a promising alternative...
2018: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/29615995/htlv-1-alters-t-cells-for-viral-persistence-and-transmission
#11
REVIEW
Azusa Tanaka, Masao Matsuoka
Human T-cell leukemia virus type 1 (HTLV-1) was the first retrovirus to be discovered as a causative agent of adult T-cell leukemia-lymphoma (ATL) and chronic inflammatory diseases. Two viral factors, Tax and HTLV-1 bZIP factor (HBZ), are thought to be involved in the leukemogenesis of ATL. Tax expression is frequently lost due to DNA methylation in the promoter region, genetic changes to the tax gene, and deletion of the 5' long terminal repeat (LTR) in approximately half of all ATL cases. On the other hand, HBZ is expressed in all ATL cases...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29614569/-relationship-between-continuous-renal-replacement-therapy-and-hypophosphatemia-in-critically-ill-children
#12
T Sun, Y Q Ren, F Wang, H J Miao, Y J Shan, C X Wang, Y C Zhang
Objective: To investigate the incidence and prognosis of hypophosphatemia in critically ill children treated with continuous blood purification (CBP). Methods: The medical records of the critically ill patients, who were treated with CBP, admitted to pediatric intensive care unit (PICU) of Shanghai Children's Hospital from May 2014 to April 2017 were retrospectively analyzed. The serum phosphorus levels were tested before CBP, at 48-72 h during CBP, at the end of CBP and on the next day after CBP finished. Phosphorus supplement was given to the children with severe hypophosphatemia...
April 2, 2018: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29609197/the-impact-of-illness-perceptions-and-coping-on-the-association-between-back-pain-and-health-outcomes-in-patients-suspected-of-axial-spondyloarthritis-data-from-the-space-cohort
#13
Miranda van Lunteren, Margreet Scharloo, Zineb Ez-Zaitouni, Anoek de Koning, Robert Landewé, Camilla Fongen Pt, Roberta Ramonda, Ad A Kaptein, Floris A van Gaalen, Désirée van der Heijde
OBJECTIVE: To investigate if illness perceptions and coping influence the relationship between back pain and health outcomes in patients suspected of axial spondyloarthritis (axSpA). METHODS: In the SPACE cohort regression models were computed at baseline with back pain intensity (0-10) as determinant and health-related quality of life (HRQoL; physical (PCS) and mental component summary (MCS) of the 36-item Short-Form Health Survey (SF-36)) or work productivity loss (WPL) as outcomes...
April 2, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29596326/differentiation-therapy-targeting-the-%C3%AE-catenin-cbp-interaction-in-pancreatic-cancer
#14
Philipp Manegold, Keane K Y Lai, Yongfeng Wu, Jia-Ling Teo, Heinz-Josef Lenz, Yuri S Genyk, Stephen J Pandol, Kaijin Wu, David P Lin, Yibu Chen, Cu Nguyen, Yi Zhao, Michael Kahn
BACKGROUND: Although canonical Wnt signaling is known to promote tumorigenesis in pancreatic ductal adenocarcinoma (PDAC), a cancer driven principally by mutant K-Ras , the detailed molecular mechanisms by which the Wnt effector β-catenin regulates such tumorigenesis are largely unknown. We have previously demonstrated that β-catenin's differential usage of the Kat3 transcriptional coactivator cyclic AMP-response element binding protein-binding protein (CBP) over its highly homologous coactivator p300 increases self-renewal and suppresses differentiation in other types of cancer...
March 29, 2018: Cancers
https://www.readbyqxmd.com/read/29590644/acetylation-of-gata4-on-lysine-residue-k313-promotes-osteoblastic-cells-growth
#15
Wenjun You, Lijuan Song, Kun Wang
BACKGROUND/AIMS: GATA4, a protein related to osteoblast differentiation and mineralization, whose acetylation is essential for cardiac defects. Here, we aimed to explore the functional impacts of GATA4 acetylation on osteoporosis (OS). METHODS: GATA4 acetylation in hFOB1.19 and 293T cells was detected after exposure of HDAC inhibitors (TSA and SAHA). Co-immunoprecipitation was conducted to determine which HATs and HDACs was involved in the modulation of GATA4 acetylation/deacetylation, and to identify the acetylation site...
March 22, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29590107/novel-function-of-hats-and-hdacs-in-homologous-recombination-through-acetylation-of-human-rad52-at-double-strand-break-sites
#16
Takeshi Yasuda, Wataru Kagawa, Tomoo Ogi, Takamitsu A Kato, Takehiro Suzuki, Naoshi Dohmae, Kazuya Takizawa, Yuka Nakazawa, Matthew D Genet, Mika Saotome, Michio Hama, Teruaki Konishi, Nakako Izumi Nakajima, Masaharu Hazawa, Masanori Tomita, Manabu Koike, Katsuko Noshiro, Kenichi Tomiyama, Chizuka Obara, Takaya Gotoh, Ayako Ui, Akira Fujimori, Fumiaki Nakayama, Fumio Hanaoka, Kaoru Sugasawa, Ryuichi Okayasu, Penny A Jeggo, Katsushi Tajima
The p300 and CBP histone acetyltransferases are recruited to DNA double-strand break (DSB) sites where they induce histone acetylation, thereby influencing the chromatin structure and DNA repair process. Whether p300/CBP at DSB sites also acetylate non-histone proteins, and how their acetylation affects DSB repair, remain unknown. Here we show that p300/CBP acetylate RAD52, a human homologous recombination (HR) DNA repair protein, at DSB sites. Using in vitro acetylated RAD52, we identified 13 potential acetylation sites in RAD52 by a mass spectrometry analysis...
March 28, 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29587481/in-vivo-bioluminescence-imaging-of-cobalt-accumulation-in-a-mouse-model
#17
Bowen Ke, Lin Ma, Ting Kang, Wei He, Xueyan Gou, Deying Gong, Lupei Du, Minyong Li
As a trace element nutrient, cobalt is critical for both prokaryotes and eukaryotes. In the current study, a turn-on Cobalt Bioluminescent Probe 1 (CBP-1) for the detection of cobalt has been successfully developed based on oxidative C-O bond cleavage. This probe exhibited high selectivity and sensitivity toward cobalt over other analytes. By using CBP-1, the successful in vivo imaging of cobalt accumulation was carried out in a mouse model. Such an ability to determine cobalt in living animals provides a powerful technology for studying the system distribution, toxic potency, and biological effect of Co2+ ...
March 30, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29580980/tumor-suppressor-zhx2-restricts-hepatitis-b-virus-replication-via-epigenetic-and-non-epigenetic-manners
#18
Leiqi Xu, Zhuanchang Wu, Siyu Tan, Zehua Wang, Qinghai Lin, Xiaoyan Li, Xiaojia Song, Yuan Liu, Yang Song, Jie Zhang, Jun Peng, Lifen Gao, Yaoqin Gong, Xiaohong Liang, Xiuli Zuo, Chunhong Ma
Hepatitis B virus (HBV) covalently closed circular DNA (cccDNA), the stable genomic form as the template for viral transcription, plays a crucial role in viral persistence which remains a major global health problem. While accumulating evidence suggests the involvement of transcription factors and epigenetic machinery in cccDNA transcription, the roles of host transcription factors which contribute to epigenetic modification of cccDNA remain largely unknown. Zinc finger and homeoboxes 2 (ZHX2) is abundantly expressed in adult hepatocytes, where it acts as a transcriptional repressor and tumor suppressor by directly inhibiting the promoter activities of target genes...
March 23, 2018: Antiviral Research
https://www.readbyqxmd.com/read/29579265/imaging-of-the-sacroiliac-joints-is-important-for-diagnosing-early-axial-spondyloarthritis-but-not-all-decisive
#19
Zineb Ez-Zaitouni, Robert Landewé, Miranda van Lunteren, Pauline A Bakker, Karen M Fagerli, Roberta Ramonda, Lennart T H Jacobsson, Désirée van der Heijde, Floris A van Gaalen
Objectives: To evaluate the contribution of the results of sacroiliac imaging to diagnosis and to the level of confidence in diagnosis in patients presenting with chronic back pain (CBP) and suspected of having axial spondyloarthritis (axSpA). Methods. Data from 513 patients from the SPondyloArthritisCaughtEarly cohort with CBP (⩾3 months, ⩽2 years, onset <45 years) were analysed after full diagnostic work-up. Rheumatologists were asked not only to provide a diagnosis before and after the imaging results had been provided to them, but also to provide the level of confidence of this diagnosis on an 11-point numerical scale...
March 20, 2018: Rheumatology
https://www.readbyqxmd.com/read/29574300/people-with-epilepsy-and-their-relatives-want-more-information-about-risks-of-injuries-and-premature-death
#20
Oliver Henning, Karl O Nakken, Morten I Lossius
For most people with chronic diseases such as epilepsy, thorough knowledge of the disease is important in order to reduce feelings of insecurity and to enable better management of everyday life. Whether and when to inform patients and their families about all the risks associated with epilepsy is a matter of controversy. Using a web-based survey, patients with epilepsy (PWE) (n=1183) and carers, family members, or guardians of PWE, who could either answer on behalf of the patients (CBP) (n=676) or on their own behalf (CAR) (n=231) were asked whether they wanted information about the risk of epilepsy-related injuries and premature death and also whether they had received such information...
March 22, 2018: Epilepsy & Behavior: E&B
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