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https://www.readbyqxmd.com/read/29241165/sc1-promotes-mir124-3p-expression-to-maintain-the-self-renewal-of-mouse-embryonic-stem-cells-by-inhibiting-the-mek-erk-pathway
#1
Qing Wei, Hongliang Liu, Zhiying Ai, Yongyan Wu, Yingxiang Liu, Zhaopeng Shi, Xuexue Ren, Zekun Guo
BACKGROUND/AIMS: Self-renewal is one of the most important features of embryonic stem (ES) cells. SC1 is a small molecule modulator that effectively maintains the self-renewal of mouse ES cells in the absence of leukemia inhibitory factor (LIF), serum and feeder cells. However, the mechanism by which SC1 maintains the undifferentiated state of mouse ES cells remains unclear. METHODS: In this study, microarray and small RNA deep-sequencing experiments were performed on mouse ES cells treated with or without SC1 to identify the key genes and microRNAs that contributed to self-renewal...
December 12, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29239518/oxygen-vacancies-dominated-nis2-cos2-interface-porous-nanowires-for-portable-zn-air-batteries-driven-water-splitting-devices
#2
Jie Yin, Yuxuan Li, Fan Lv, Min Lu, Ke Sun, Wei Wang, Lei Wang, Fangyi Cheng, Yefei Li, Pinxian Xi, Shaojun Guo
The development of highly active and stable oxygen evolution reaction (OER) electrocatalysts is crucial for improving the efficiency of water splitting and metal-air battery devices. Herein, an efficient strategy is demonstrated for making the oxygen vacancies dominated cobalt-nickel sulfide interface porous nanowires (NiS2 /CoS2 -O NWs) for boosting OER catalysis through in situ electrochemical reaction of NiS2 /CoS2 interface NWs. Because of the abundant oxygen vacancies and interface porous nanowires structure, they can catalyze the OER efficiently with a low overpotential of 235 mV at j = 10 mA cm-2 and remarkable long-term stability in 1...
December 2017: Advanced Materials
https://www.readbyqxmd.com/read/29238786/unravelling-cationic-cellulose-nanofibril-hydrogel-structure-nmr-spectroscopy-and-small-angle-neutron-scattering-analyses
#3
James C Courtenay, Susana M Ramalhete, William J Skuze, Rhea Soni, Yaroslav Z Khimyak, Karen J Edler, Janet L Scott
Stiff, elastic, viscous shear thinning aqueous gels are formed upon dispersion of low weight percent concentrations of cationically modified cellulose nanofibrils (CCNF) in water. CCNF hydrogels produced from cellulose modified with glycidyltrimethylammonium chloride, with degree of substitution (DS) in the range 10.6(3)-23.0(9)%, were characterised using NMR spectroscopy, rheology and small angle neutron scattering (SANS) to probe the fundamental form and dimensions of the CCNF and to reveal interfibrillar interactions leading to gelation...
December 13, 2017: Soft Matter
https://www.readbyqxmd.com/read/29238518/mir-124-promotes-proliferation-and-differentiation-of-neuronal-stem-cells-through-inactivating-notch-pathway
#4
Shujie Jiao, Yaling Liu, Yaobing Yao, Junfang Teng
Background: Neural stem cells (NSCs) are able to differentiate into neurons and astroglia. miRNAs have been demonstrated to be involved in NSC self-renewal, proliferation and differentiation. However, the exact role of miR-124 in the development of NSCs and its underlying mechanism remain to be explored. Methods: Primary NSCs were isolated from embryos of Wistar rats. Immunocytochemistry was used to stain purified NSCs. miR-124, Delta-like 4 (DLL4), ki-67, Nestin, β-tubulin III, glial fibrillary acidic protein (GFAP), HES1, HEY2, and cyclin D1 (CCND1) expressions were detected by qRT-PCR and western blot...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/29238442/reducing-greenhouse-gas-emissions-and-improving-air-quality-two-global-challenges
#5
REVIEW
Larry E Erickson
There are many good reasons to promote sustainable development and reduce greenhouse gas emissions and other combustion emissions. The air quality in many urban environments is causing many premature deaths because of asthma, cardiovascular disease, chronic obstructive pulmonary disease, lung cancer, and dementia associated with combustion emissions. The global social cost of air pollution is at least $3 trillion/year; particulates, nitrogen oxides and ozone associated with combustion emissions are very costly pollutants...
July 2017: Environmental Progress & Sustainable Energy
https://www.readbyqxmd.com/read/29238397/a-method-to-generate-the-surface-cell-layer-of-the-3d-virtual-shoot-apex-from-apical-initials
#6
Krzysztof Kucypera, Marcin Lipowczan, Anna Piekarska-Stachowiak, Jerzy Nakielski
Background: The development of cell pattern in the surface cell layer of the shoot apex can be investigated in vivo by use of a time-lapse confocal images, showing naked meristem in 3D in successive times. However, how this layer is originated from apical initials and develops as a result of growth and divisions of their descendants, remains unknown. This is an open area for computer modelling. A method to generate the surface cell layer is presented on the example of the 3D paraboloidal shoot apical dome...
2017: Plant Methods
https://www.readbyqxmd.com/read/29237490/linc-ror-promotes-esophageal-squamous-cell-carcinoma-progression-through-the-derepression-of-sox9
#7
Lianghai Wang, Xiaodan Yu, Zhiyu Zhang, Lijuan Pang, Jiang Xu, Jinfang Jiang, Weihua Liang, Yuhang Chai, Jun Hou, Feng Li
BACKGROUND: Novel therapies tailored to the molecular composition of esophageal squamous cell carcinoma (ESCC) are needed to improve patient survival. We investigated the regulatory network of long intergenic non-protein coding RNA, regulator of reprogramming (linc-ROR) and sex-determining region Y-box 9 (SOX9), and their therapeutic relevance in ESCC. METHODS: Linc-ROR and SOX9 expression were examined in ESCC specimens, cell lines, and cultured tumorspheres. We investigated the effects of linc-ROR on SOX9 expression and malignant phenotypes by CCK8, colony formation, Transwell, and sphere-forming assay...
December 13, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29236330/exploring-the-usefulness-of-key-green-physicochemical-properties-quantitative-structure-activity-relationship-qsar-for-solvents-from-biomass
#8
Estefanía Zuriaga, Beatriz Giner, María Pilar Ribate, Cristina B García, Laura Lomba
During the last decades there has been a growing interest in the development of new solvents from biomass. Some of these new solvents have been classified as green due to their renewable and sustainable source. However, characterization from the ecotoxicological and physicochemical point of view is needed in order to categorize them as green solvents. We have selected several key physicochemical properties that can reflect environmental features (density, boiling point, critical aggregation concentration and Log P) and explored their usefulness for preliminary assessing the green character of the studied solvents...
December 13, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29235026/the-n-shaped-environmental-kuznets-curve-an-empirical-evaluation-using-a-panel-quantile-regression-approach
#9
Alexandra Allard, Johanna Takman, Gazi Salah Uddin, Ali Ahmed
We evaluate the N-shaped environmental Kuznets curve (EKC) using panel quantile regression analysis. We investigate the relationship between CO2 emissions and GDP per capita for 74 countries over the period of 1994-2012. We include additional explanatory variables, such as renewable energy consumption, technological development, trade, and institutional quality. We find evidence for the N-shaped EKC in all income groups, except for the upper-middle-income countries. Heterogeneous characteristics are, however, observed over the N-shaped EKC...
December 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29234464/production-of-isoprene-one-of-the-high-density-fuel-precursors-from-peanut-hull-using-the-high-efficient-lignin-removal-pretreatment-method
#10
Sumeng Wang, Zhaobao Wang, Yongchao Wang, Qingjuan Nie, Xiaohua Yi, Wei Ge, Jianming Yang, Mo Xian
Background: Isoprene as the feedstock can be used to produce renewable energy fuels, providing an alternative to replace the rapidly depleting fossil fuels. However, traditional method for isoprene production could not meet the demands for low-energy consumption and environment-friendliness. Moreover, most of the previous studies focused on biofuel production out of lignocellulosic materials such as wood, rice straw, corn cob, while few studies concentrated on biofuel production using peanut hull (PH)...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/29234398/review-on-research-about-traditional-chinese-medicine-in-cancer-stem-cell
#11
REVIEW
Yaohan Wang, Li Feng, Bingkui Piao, Peitong Zhang
Cancer stem cells (CSCs) are small subpopulations of neoplastic cells within a tumor, which have self-renewal and differentiation abilities and could generate new tumors with few cells. Researches have showed that CSCs are considered the most likely reason for cancer recurrence and metastasis. Accumulating evidences have showed that traditional Chinese medicine (TCM) has significant effect on CSCs. It could inhibit the proliferation, self-renew, and multidifferentiation of CSCs. We aimed to summarize the theories of CSCs in TCM, the inhibitory effect, and the pathway on CSCs of TCM...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234341/assuring-potato-tuber-quality-during-storage-a-future-perspective
#12
REVIEW
M C Alamar, Roberta Tosetti, Sandra Landahl, Antonio Bermejo, Leon A Terry
Potatoes represent an important staple food crop across the planet. Yet, to maintain tuber quality and extend availability, there is a necessity to store tubers for long periods often using industrial-scale facilities. In this context, preserving potato quality is pivotal for the seed, fresh and processing sectors. The industry has always innovated and invested in improved post-harvest storage. However, the pace of technological change has and will continue to increase. For instance, more stringent legislation and changing consumer attitudes have driven renewed interest in creating alternative or complementary post-harvest treatments to traditional chemically reliant sprout suppression and disease control...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29233446/overview-of-a-pharmacist-anticoagulation-certificate-program
#13
Julienne K Kirk, Rebecca Edwards, Andrew Brewer, Cathey Miller, Bryan Bray, James B Groce
BACKGROUND AND PURPOSE: To describe the design of an ongoing anticoagulation certificate program and annual renewal update for pharmacists. EDUCATIONAL ACTIVITY AND SETTING: Components of the anticoagulation certificate program include home study, pre- and posttest, live sessions, case discussions with evaluation and presentation, an implementation plan, and survey information (program evaluation and use in practice). Clinical reasoning skills were assessed through case work-up and evaluation prior to live presentation...
July 2017: Currents in Pharmacy Teaching & Learning
https://www.readbyqxmd.com/read/29233375/pharmacy-student-perspectives-regarding-curricular-renewal-with-experiential-alignment
#14
Wesley Nuffer, Eric Gilliam, Megan Thompson, Sarah Deihimi, Kimberly Jordan, Rebecca Wienbar, Joseph Vande Griend
BACKGROUND AND PURPOSE: To evaluate pharmacy students' ability to perform and perspectives regarding a purposeful mapping of curricular content into experiential settings for application. EDUCATIONAL ACTIVITY AND SETTING: Students were given a list of activities developed by their curricular course directors that were to be completed during their introductory pharmacy practice experiences (IPPEs). Students were tasked with completing each assignment at their community or health system pharmacy site, and verify completion with their preceptor...
November 2017: Currents in Pharmacy Teaching & Learning
https://www.readbyqxmd.com/read/29233374/curriculum-renewal-alignment-of-introductory-pharmacy-practice-experiences-with-didactic-course-content
#15
Wesley Nuffer, Sheila Botts, Kari Franson, Eric Gilliam, Randy Knutsen, Monika Nuffer, Elizabeth O'Brien, Joseph Saseen, Megan Thompson, Joseph Vande Griend, Robert Willis
BACKGROUND AND PURPOSE: The University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences (SSPPS) used the opportunity of curriculum renewal to integrate knowledge and skills learned from didactic courses into the introductory pharmacy practice experiences (IPPEs) occurring simultaneously. This paper describes and evaluates the meaningful application of course content into IPPEs, and evaluates the success using qualitative feedback. EDUCATIONAL ACTIVITY AND SETTING: Students entering the renewed curriculum starting in fall 2012 were provided a list of pharmacy skills and activities from didactic course directors that reinforced course content for that semester...
November 2017: Currents in Pharmacy Teaching & Learning
https://www.readbyqxmd.com/read/29233025/ralstonia-eutropha-h16-in-progress-applications-beside-phas-and-establishment-as-production-platform-by-advanced-genetic-tools
#16
Matthias Raberg, Elena Volodina, Kaichien Lin, Alexander Steinbüchel
Ralstonia eutropha strain H16 is a Gram-negative non-pathogenic betaproteobacterium ubiquitously found in soils and has been the subject of intensive research for more than 50 years. Due to its remarkable metabolically versatility, it utilizes a broad range of renewable heterotrophic resources. The substrate utilization range can be further extended by metabolic engineering as genetic tools are available. It has become the best studied "Knallgas" bacterium capable of chemolithoautotrophic growth with hydrogen as the electron donor and carbon dioxide as the carbon source...
December 12, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/29232700/sygl-1-and-lst-1-link-niche-signaling-to-puf-rna-repression-for-stem-cell-maintenance-in-caenorhabditis-elegans
#17
Heaji Shin, Kimberly A Haupt, Aaron M Kershner, Peggy Kroll-Conner, Marvin Wickens, Judith Kimble
Central questions in regenerative biology include how stem cells are maintained and how they transition from self-renewal to differentiation. Germline stem cells (GSCs) in Caenorhabditis elegans provide a tractable in vivo model to address these questions. In this system, Notch signaling and PUF RNA binding proteins, FBF-1 and FBF-2 (collectively FBF), maintain a pool of GSCs in a naïve state. An open question has been how Notch signaling modulates FBF activity to promote stem cell self-renewal. Here we report that two Notch targets, SYGL-1 and LST-1, link niche signaling to FBF...
December 12, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29232504/a-genetic-toolbox-for-modulating-the-expression-of-heterologous-genes-in-the-cyanobacterium-synechocystis-sp-pcc-6803
#18
Bo Wang, Carrie Eckert, Pin-Ching Maness, Jianping Yu
Cyanobacteria, genetic models for photosynthesis research for decades, have recently become attractive hosts for producing renewable fuels and chemicals, owing to their genetic tractability, relatively fast growth, and their ability to utilize sunlight, fix carbon dioxide and, in some cases, fix nitrogen. Despite significant advances, there is still an urgent demand for synthetic biology tools in order to effectively manipulate genetic circuits in cyanobacteria. In this study, we have compared a total of 17 natural and chimeric promoters, focusing on expression of the ethylene-forming enzyme (EFE) in the cyanobacterium Synechocystis sp...
December 12, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/29231999/gant-61-and-gdc-0449-induce-apoptosis-of-prostate-cancer-stem-cells-through-a-gli-dependent-mechanism
#19
Wangxia Tong, Lei Qiu, Meng Qi, Jianbing Liu, Kaihui Hu, Wenxiong Lin, Yan Huang, Junsheng Fu
Aberrant reactivation of the Sonic Hedgehog (SHH) signaling pathway promotes prostate cancer (PC) growth and progression by regulating cancer-related genes through its downstream effectors GLI1 and GLI2. Therefore, targeting the SHH-GLI pathway provides an alternative approach to avoid cancer progression. The aim of this study was to delineate the underlying molecular mechanisms by which GDC-0449 (a SMO receptor inhibitor) and GANT-61 (a GLI transcription factor inhibitor) regulate cellular proliferation and self-renewal in human PC stem cells (ProCSCs)...
December 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29231967/therapeutic-potential-of-porcine-bronchoalveolar-fluid-derived-mesenchymal-stromal-cells-in-a-pig-model-of-lps-induced-ali
#20
Mahesh Khatri, Levi Arthur Richardson
In this study, we isolated mesenchymal stromal (stem) cells (MSCs) from broncho-alveolar lavage fluid (BAL) of 2-6 week-old commercial pigs. BAL-MSCs displayed fibroblastic morphology and possessed self-renewal properties. Similar to bone-marrow MSCs, BAL-MSCs expressed mesenchymal markers and both cell types lacked the expression of hematopoetic markers. BAL-MSCs, when cultured in differentiation induction media, differentiated into adipocytes, osteocytes and chondrocytes. Next, we examined if BAL-MSCs have the ability to treat lipopolysaccharide (LPS)-induced acute lung injury (ALI) in a pig model...
December 12, 2017: Journal of Cellular Physiology
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