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https://www.readbyqxmd.com/read/29776005/flexible-and-hierarchical-metal-organic-framework-composites-for-high-performance-catalysis
#1
Ning Huang, Hannah Drake, Jialuo Li, Jiangdong Pang, Ying Wang, Shuai Yuan, Qi Wang, Peiyu Cai, Junsheng Qin, Hong-Cai Zhou
The development of new types of porous composite materials is of great significance owing to their potentially improved performance over those of individual components and extensive applications in separation, energy storage, and heterogeneous catalysis. In this work, we integrated mesoporous metal-organic frameworks (MOFs) with macroporous melamine foam (MF) using a one-pot process, generating a series of MOF/MF composite materials with preserved crystallinity, hierarchical porosity, and increased stability over that of melamine foam...
May 18, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29775958/a-systematic-review-of-community-based-interventions-to-improve-oral-chronic-disease-medication-regimen-adherence-among-individuals-with-substance-use-disorder
#2
REVIEW
Karen M Clements, Tasmina Hydery, Mark A Tesell, Bonnie C Greenwood, Michael C Angelini
BACKGROUND: Poor medication adherence has been shown to cause medical complications, death, and increased healthcare costs and may be of particular importance in patients with substance use disorder (SUD). Concerns regarding adherence in this population may influence a healthcare provider's decision to prescribe a medication requiring high adherence. Guidance defining best practices that promote adherence among individuals with SUD is lacking. METHODS: A review of English articles in Medline and PsycINFO databases, published between October 1, 1994 and October 31, 2017, was conducted in order to identify studies of interventions intended to improve adherence to oral chronic disease medication regimens among patients with SUD...
May 1, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29775949/design-and-synthesis-of-some-new-carboxamide-and-propanamide-derivatives-bearing-phenylpyridazine-as-a-core-ring-and-the-investigation-of-their-inhibitory-potential-on-in-vitro-acetylcholinesterase-and-butyrylcholinesterase
#3
Burcu Kilic, Hayrettin O Gulcan, Fatma Aksakal, Tugba Ercetin, Nihan Oruklu, E Umit Bagriacik, Deniz S Dogruer
A series of new carboxamide and propanamide derivatives bearing phenylpyridazine as a core ring were designed, synthesized and evaluated for their ability to inhibit both cholinesterase enzymes. In addition, a series of carboxamide and propanamide derivatives bearing biphenyl instead of phenylpyridazine were also synthesized to examine the inhibitory effect of pyridazine moiety on both cholinesterase enzymes. The inhibitory activity results revealed that compounds 5b, 5f, 5h, 5j, 5l pyridazine-3-carboxamide derivative, exhibited selective acetylcholinesterase (AChE) inhibition with IC50 values ranging from 0...
May 8, 2018: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29775948/novel-3-phenylcoumarin-lipoic-acid-conjugates-as-multi-functional-agents-for-potential-treatment-of-alzheimer-s-disease
#4
Leili Jalili-Baleh, Hamid Nadri, Hamid Forootanfar, Alireza Samzadeh-Kermani, Tuba Tüylü Küçükkılınç, Beyza Ayazgok, Mahban Rahimifard, Maryam Baeeri, Mohsen Doostmohammadi, Loghman Firoozpour, Syed Nasir Abbas Bukhari, Mohammad Abdollahi, Mohammad Reza Ganjali, Saeed Emami, Mehdi Khoobi, Alireza Foroumadi
New series of triazole-containing 3-phenylcoumarin-lipoic acid conjugates were designed as multi-functional agents for treatment of Alzheimer's disease. The target compounds 4a-o were synthesized via the azide-alkyne cycloaddition reaction and their biological activities were primarily evaluated in terms of neuroprotection against H2 O2 -induced cell death in PC12 cells and AChE/BuChE inhibition. The promising compounds 4j and 4i containing four carbons spacer were selected for further biological evaluations...
May 2, 2018: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29775937/design-synthesis-and-biological-evaluation-of-a-series-of-novel-2-benzamide-4-6-oxy-n-methyl-1-naphthamide-pyridine-derivatives-as-potent-fibroblast-growth-factor-receptor-fgfr-inhibitors
#5
Manman Wei, Xia Peng, Li Xing, Yang Dai, Ruimin Huang, Meiyu Geng, Ao Zhang, Jing Ai, Zilan Song
Starting from the phase II clinical FGFR inhibitor lucitanib (2), we conducted a medicinal chemistry approach by opening the central quinoline skeleton coupled with a scaffold hopping process thus leading to a series of novel 2-benzamide-4-(6-oxy-N-methyl-1-naphthamide)-pyridine derivatives. Compound 25a was identified to show selective and equally high potency against FGFR1/2 and VEGFR2 with IC50 values less than 5.0 nM. Significant antiproliferative effects on both FGFR1/2 and VEGFR2 aberrant cancer cells were observed...
May 15, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29775936/from-hit-to-lead-structure-based-discovery-of-naphthalene-1-sulfonamide-derivatives-as-potent-and-selective-inhibitors-of-fatty-acid-binding-protein-4
#6
Ding-Ding Gao, Hui-Xia Dou, Hai-Xia Su, Ming-Ming Zhang, Ting Wang, Qiu-Feng Liu, Hai-Yan Cai, Hai-Peng Ding, Zhuo Yang, Wei-Liang Zhu, Ye-Chun Xu, He-Yao Wang, Ying-Xia Li
Fatty acid binding protein 4 (FABP4) plays a critical role in metabolism and inflammatory processes and therefore is a potential therapeutic target for immunometabolic diseases such as diabetes and atherosclerosis. Herein, we reported the identification of naphthalene-1-sulfonamide derivatives as novel, potent and selective FABP4 inhibitors by applying a structure-based design strategy. The binding affinities of compounds 16dk, 16do and 16du to FABP4, at the molecular level, are equivalent to or even better than that of BMS309403...
May 9, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29775935/design-synthesis-antiproliferative-activity-and-docking-studies-of-quinazoline-derivatives-bearing-2-3-dihydro-indole-or-1-2-3-4-tetrahydroquinoline-as-potential-egfr-inhibitors
#7
Yiqiang OuYang, Wensheng Zou, Liang Peng, Zunhua Yang, Qidong Tang, Mengzi Chen, Shuang Jia, Hong Zhang, Zhou Lan, Pengwu Zheng, Wufu Zhu
Eight series of quinazoline derivatives bearing 2,3-dihydro-indole or 1,2,3,4-tetrahydroquinoline were designed, synthesized and evaluated for the IC50 values against three cancer cell lines (A549, MCF-7 and PC-3). Most of the forty nine target compounds showed excellent antiproliferative activity against one or several cancer cell lines. The compound 13a showed the best activity against A549, MCF-7 and PC-3 cancer cell lines, with the IC50 values of 1.09 ± 0.04 μM, 1.34 ± 0.13 μM and 1.23 ± 0...
May 9, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29775880/photocatalytic-reductive-dechlorination-of-2-chlorodibenzo-p-dioxin-by-pd-modified-g-c-3-n-4-photocatalysts-under-uv-vis-irradiation-efficacy-kinetics-and-mechanism
#8
Jiafeng Ding, Gaoyuan Long, Yang Luo, Runze Sun, Mengxia Chen, Yajun Li, Yanfang Zhou, Xinhua Xu, Weirong Zhao
Polychlorinated dibenzo-p-dioxins (PCDDs), as a group of notorious anthropogenic environmental toxicants, are arguably ubiquitous in nature. In this study, we investigated the photocatalytic reductive dechlorination of 2-chlorodibenzo-p-dioxin (2-CDD) over Pd/g-C3 N4 catalysts under UV-vis irradiation. The g-C3 N4 and a series of Pd/g-C3 N4 catalysts were prepared by thermal polymerization and mechanical mixing-illumination method and characterized by XRD, TEM, BET, SEM and UV-vis DRS analyses. Among all the samples, the Pd/g-C3 N4 (5 wt%) yielded the optimal dechlorination activity with a total 2-CDD conversion of 54% within 4 h, and 76% of those converted 2-CDD were evolved to dibenzo-p-dioxin (DD)...
May 9, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29775851/comparative-study-of-quality-of-life-anxiety-depression-and-fatigue-among-patients-with-neuromyelitis-optica-spectrum-disorder-and-multiple-sclerosis-the-first-report-from-iran
#9
Mahdi Barzegar, Shervin Badihian, Omid Mirmosayyeb, Fereshteh Ashtari, Maryam Jamadi, Shohreh Emami, Leila Jahani, Armaghan Safavi, Vahid Shaygannejad
BACKGROUND: Neuromyelitis optica spectrum disorder (NMOSD) and multiple sclerosis (MS) are associated with reduced Health Related Quality of Life (HRQOL). To the best of our knowledge, change of HRQOL in patients with NMOSD has not been yet measure in Iran. The objective of this study was to assess HRQOL in NMOSD and MS patients and identify related factors METHODS: A cross sectional study of 41 patients with NMOSD and 136 age and sex-match MS patients was performed. A series of questionnaires including Persian validated questionnaires on HRQOL (SF-36), fatigue (MFIS), depression (BDI-II), anxiety (HAM-A) and sleep quality (PSQI) were record...
April 14, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29775818/carbon-aerogel-based-supercapacitors-modified-by-hummers-oxidation-method
#10
Yuelong Xu, Bin Ren, Shasha Wang, Lihui Zhang, Zhenfa Liu
Carbon aerogels of an inter-connected three-dimensional (3D) structure are a potential carbon material for supercapacitors. We report a new oxidation modification method to prepare a series of modified carbon aerogels (OM-CA) by Hummers oxidation method. Oxidation-modified carbon aerogels (OM-CA) are obtained from carbon aerogel powders oxidized by Hummers method. Sulfuric acid stoichiometry is studied in order to investigate the effect of the surface oxygen group on surface area and electrochemical performance...
May 14, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29775712/rheological-and-fracturing-characteristics-of-a-novel-sulfonated-hydroxypropyl-guar-gum
#11
Liewei Qiu, Yiding Shen, Tao Wang, Chen Wang
A series of sulfonated hydroxypropyl guar gum (SHG) samples with different degrees of substitution (DSs) were prepared, and the SHG solution and SHG fracturing fluid were prepared and analyzed. The SHG aqueous solutions with different DSs all exhibit shear thinning behavior, which is well correlated with the Ostwald-deWaele model. Owing to the electrostatic repulsion of SHG molecular chains, SHG solutions with a higher DS will exhibit weaker thixotropic performance and strong anti-salinity ability. In addition, the SHG fracturing fluids, which were formed by interactions between SHG and organic zirconium, exhibit good temperature- and shear-resistant properties, proppant suspension properties, and salt tolerance...
May 15, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29775651/molecular-cloning-and-expression-analysis-of-interleukin-1%C3%AE-and-interleukin-1-receptor-type-i-genes-in-yellow-catfish-pelteobagrus-fulvidraco-responses-to-challenge-of-edwardsiella-ictaluri
#12
Chen-Lei Liao, Gui-Rong Zhang, Dong-Mei Zhu, Wei Ji, Ze-Chao Shi, Rui Jiang, Qi-Xue Fan, Kai-Jian Wei
Interleukin-1β (IL-1β) is one of the pivotal early pro-inflammatory cytokines, which play important roles in regulating immune response and inducing a series of inflammatory reactions to infections. Interleukin-1 type I receptor (IL-1RI) is a receptor of the IL-1β that can mediate IL-1-dependent activation. In this study, partial cDNA sequences of the Pf_IL-1β and Pf_IL-1RI genes were cloned from yellow catfish (Pelteobagrus fulvidraco). The open reading frames (ORF) of Pf_IL-1β and Pf_IL-1RI genes encode putative peptides of 280 and 543 amino acids, respectively...
May 15, 2018: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29775628/-cost-effectiveness-of-interventions-to-improve-hand-hygiene-in-healthcare-workers-in-middle-income-hospital-settings-a-model-based-analysis
#13
Nantasit Luangasanatip, Maliwan Hongsuwan, Yoel Lubell, Direk Limmathurotsakul, Pramot Srisamang, Nicholas Pj Day, Nicholas Graves, Ben S Cooper
BACKGROUND: Multimodal interventions are effective in increasing hand hygiene (HH) compliance amongst healthcare workers, but it is not known whether such interventions are cost-effective outside high-income countries. AIM: To evaluate the cost-effectiveness of multimodal hospital interventions to improve hand hygiene (HH) compliance in a middle-income country. METHOD: We adopted a conservative approach by developing a model to determine whether reductions in Methicillin-resistant Staphylococcus aureus bloodstream infections (MRSA-BSI) alone would make HH interventions cost-effective in intensive care units (ICUs)...
May 15, 2018: Journal of Hospital Infection
https://www.readbyqxmd.com/read/29775605/outcomes-of-planned-2-stage-hybrid-aortic-repair-with-dacron-replaced-proximal-landing-zone
#14
David N Ranney, Babatunde A Yerokun, Ehsan Benrashid, Muath Bishawi, Adam Williams, Richard L McCann, G Chad Hughes
BACKGROUND: Results of hybrid arch repair (HAR) utilizing native zone 0 proximal landing zone (PLZ) have been unsatisfactory in many series, especially in the setting of ascending aortic dilation (>4.0 cm). This study reports early and late outcomes of planned 2-stage HAR with open 1st stage proximal aortic replacement (PAR) followed by 2nd stage thoracic endovascular aortic repair (TEVAR) with PLZ within the Dacron replaced zone 0. METHODS: N=34 patients underwent planned 2-stage HAR between 1/2006-8/2017...
May 15, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29775549/growth-trajectories-of-young-children-s-objectively-determined-physical-activity-sedentary-behavior-and-body-mass-index
#15
Zan Gao
PURPOSE: This study examined trajectories in children's physical activity (PA), sedentary behavior, and body mass index (BMI) for both genders, and relationships among these trajectories, from childhood through early adolescence. METHODS: A total of 261 seconds and third-grade children (135 girls; Meanage  = 7.81; 73% White) from two U.S. elementary schools participated in this study. Their objective PA, sedentary behavior, and BMI were measured yearly from 2012 to 2015...
May 18, 2018: Childhood Obesity
https://www.readbyqxmd.com/read/29775511/optimized-fibril-network-morphology-by-precise-side-chain-engineering-to-achieve-high-performance-bulk-heterojunction-organic-solar-cells
#16
Tao Liu, Lijun Huo, Sreelakshmi Chandrabose, Kai Chen, Guangchao Han, Feng Qi, Xiangyi Meng, Dongjun Xie, Wei Ma, Yuanping Yi, Justin M Hodgkiss, Feng Liu, Jing Wang, Chuluo Yang, Yanming Sun
A polymer fibril assembly can dictate the morphology framework, in forming a network structure, which is highly advantageous in bulk heterojunction (BHJ) organic solar cells (OSCs). A fundamental understanding of how to manipulate such a fibril assembly and its influence on the BHJ morphology and device performance is crucially important. Here, a series of donor-acceptor polymers, PBT1-O, PBT1-S, and PBT1-C, is used to systematically investigate the relationship between molecular structure, morphology, and photovoltaic performance...
May 18, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29775489/relativistic-heavy-atom-effect-on-the-31-p-nmr-parameters-of-phosphine-chalcogenides-part-1-chemical-shifts
#17
Yury Yu Rusakov, Irina L Rusakova, Leonid B Krivdin
Four-component DFT calculations of 31 P NMR chemical shifts have been performed for the representative series of 56 phosphine chalcogenides in order to investigate an influence of different functional groups on the heavy atom relativistic effect on the NMR chemical shifts of light phosphorous atoms (HALA effect). The validity of the four-component DFT approach used for the wide-scale calculations of the phosphorous chemical shifts in a wide series of phosphine chalcogenides has been confirmed on a small series of 5 representative compounds with the aid of high-quality CCSD calculations taking into account solvent, vibrational and the relativistic corrections in comparison with the experiment...
May 18, 2018: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/29775486/peroxidasin-contributes-to-lung-host-defense-by-direct-binding-and-killing-of-gram-negative-bacteria
#18
Ruizheng Shi, Zehong Cao, Hong Li, Jochen Graw, Guogang Zhang, Victor J Thannickal, Guangjie Cheng
Innate immune recognition is classically mediated by the interaction of host pattern-recognition receptors and pathogen-associated molecular patterns; this triggers a series of downstream signaling events that facilitate killing and elimination of invading pathogens. In this report, we provide the first evidence that PXDN (also known as vascular peroxidase-1) directly binds to gram-negative bacteria and mediates bactericidal activity, thus, contributing to lung host defense. PXDN contains five leucine-rich repeats and four immunoglobulin domains, which allows for its interaction with lipopolysaccharide, a membrane component of gram-negative bacteria...
May 18, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29775455/atomic-resolution-mechanism-of-ligand-binding-to-a-solvent-inaccessible-cavity-in-t4-lysozyme
#19
Jagannath Mondal, Navjeet Ahalawat, Subhendu Pandit, Lewis E Kay, Pramodh Vallurupalli
Ligand binding sites in proteins are often localized to deeply buried cavities, inaccessible to bulk solvent. Yet, in many cases binding of cognate ligands occurs rapidly. An intriguing system is presented by the L99A cavity mutant of T4 Lysozyme (T4L L99A) that rapidly binds benzene (~106 M-1s-1). Although the protein has long served as a model system for protein thermodynamics and crystal structures of both free and benzene-bound T4L L99A are available, the kinetic pathways by which benzene reaches its solvent-inaccessible binding cavity remain elusive...
May 18, 2018: PLoS Computational Biology
https://www.readbyqxmd.com/read/29775421/probability-of-heat-intolerance-standardized-interpretation-of-heat-tolerance-testing-results-versus-specialist-judgment
#20
Haggai Schermann, Erin Craig, Einat Yanovich, Itay Ketko, Gary Kalmanovich, Ran Yanovich
CONTEXT:   The heat-tolerance test (HTT) is a screening tool for secondary prevention of exertional heat illness by the Israel Defense Forces. To discern participant tolerance, recruits are exposed to intermediate environmental and exercise stresses, and their physiological responses, core temperature, and heart rate are monitored. When their physiological measures rise at a higher rate or exceed the upper levels of absolute values compared with other participants, heat intolerance (HI) is diagnosed...
April 2018: Journal of Athletic Training
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