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https://www.readbyqxmd.com/read/28645197/pht%C3%AE-promoted-mobilization-of-non-conjugative-resistance-plasmids-from-enterococcus-faecium-to-enterococcus-faecalis
#1
Laura Di Sante, Gianluca Morroni, Andrea Brenciani, Carla Vignaroli, Alberto Antonelli, Marco Maria D'Andrea, Andrea Di Cesare, Eleonora Giovanetti, Pietro E Varaldo, Gian Maria Rossolini, Francesca Biavasco
Objectives: : To analyse the recombination events associated with conjugal mobilization of two multiresistance plasmids, pRUM 17i48 and pLAG (formerly named pDO1-like), from Enterococcus faecium 17i48 to Enterococcus faecalis JH2-2. Methods: : The plasmids from two E. faecalis transconjugants (JH-4T, tetracycline resistant, and JH-8E, erythromycin resistant) and from the E. faecium donor (also carrying a pHTβ-like conjugative plasmid, named pHTβ 17i48 ) were investigated by several methods, including PCR mapping and sequencing, S1-PFGE followed by Southern blotting and hybridization, and WGS...
June 22, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28645196/antagonistic-regulation-of-cyclin-expression-by-the-bzip-transcription-factors-pcr1-and-atf1-during-g2-m-transition
#2
Sushobhana Bandyopadhyay, Protiti Maiti Ghosh, Sohini Basu, Madhurima Paul, Syed Benazir Alam, Elizabeth Das, Geetanjali Sundaram
The transcription factor Atf1 is known to promote cell survival during various stress conditions in Schizosaccharomyces pombe by activating the expression of appropriate genes. It can also activate transcription of other important genes responsible for cell cycle progression. An Atf1 dependent increase in the expression of cell division promoting genes will oppose activation of checkpoints necessary to ensure repairs and cell survival during stress. Hence selective inhibition of the cell cycle related functions of Atf1 would be indispensable for cellular survival during stress...
June 22, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28645174/adrenomedullin-promotes-the-odontogenic-differentiation-of-dental-pulp-stem-cells-through-creb-bmp2-signaling-pathway
#3
Qiang Zhu, Jianyong Gao, Gang Tian, Zhen Tang, Yinghui Tan
No abstract text is available yet for this article.
June 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28645161/lncrna-tug1-influences-papillary-thyroid-cancer-cell-proliferation-migration-and-emt-formation-through-targeting-mir-145
#4
Hongwei Lei, Yan Gao, Xiaoying Xu
LncRNA TUG1, a tumor oncogene associated with various human cancers, has been reported to be involved in regulating various cellular processes, such as proliferation, apoptosis and invasion through targeting multiple genes. However, its biological function in thyroid cancer cells has not been elucidated. The aim of this study is to measure TUG1 expression level and evaluate its function in thyroid cancer cells. LncRNA TUG1 expression levels in thyroid cancer tissues and three thyroid cancer cell lines (the ATC cell lines SW1736 and KAT18 and the FTC cell line FTC133) were assessed by qRT-PCR and compared with that of the human normal breast epithelial cell HGC-27...
June 22, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28645145/systematic-procedures-to-promote-u-s-hiv-medication-adherence-via-photovoice
#5
Michelle Teti, Victoria Shaffer, Wilson Majee, Rose Farnan, Mary Gerkovich
Medication adherence is essential to promote the health of people living with HIV (PL-HIV) and prevent HIV transmission in the U.S. Novel medication health promotion interventions are needed that address patient-centeredness, understandability, and communication with providers. The aims of this article are to define the systematic stages we used to develop an effective health promotion intervention via the products (e.g. images and stories) of Photovoice. We designed an intervention to improve HIV adherence knowledge, attitudes, and communication with providers through Photovoice...
June 21, 2017: Health Promotion International
https://www.readbyqxmd.com/read/28645139/correction-ccr4-promotes-metastasis-via-erk-nf-%C3%AE%C2%BAb-mmp13-pathway-and-acts-downstream-of-tnf-%C3%AE-in-colorectal-cancer
#6
Baochi Ou, Jingkun Zhao, Shaopei Guan, Hao Feng, Xiongzhi Wangpu, Congcong Zhu, Yaping Zong, Junjun Ma, Jing Sun, Xiaohui Shen, Minhua Zheng, Aiguo Lu
No abstract text is available yet for this article.
June 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28645112/tap63%C3%AE-and-%C3%AE-np63%C3%AE-are-regulated-by-rbm38-via-mrna-stability-and-have-an-opposing-function-in-growth-suppression
#7
Wensheng Yan, Yanhong Zhang, Xinbin Chen
The p63 gene is expressed as TAp63 from the P1 promoter and as ΔNp63 from the P2 promoter. Through alternative splicing, five TA and five ΔN isoforms (α-ε) are expressed. Isoforms α-β and δ share an identical 3' untranslated region (3'UTR) whereas isoform γ has a unique 3'UTR. Recently, we found that RBM38 RNA-binding protein is a target of p63 and RBM38 in turn regulates p63α/β expression via mRNA stability. However, it is uncertain whether p63γ has a unique biological activity and whether p63γ is regulated by RBM38...
June 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28645106/phorbol-esters-dppa-dpa-promote-furin-expression-involving-transcription-factor-cebp%C3%AE-in-neuronal-cells
#8
Jing-Si Zha, Bing-Lin Zhu, Lu Liu, Yu-Jie Lai, Yan Long, Xiao-Tong Hu, Xiao-Juan Deng, Xue-Feng Wang, Zhen Yan, Guo-Jun Chen
Using high-throughput small molecule screening targeting furin gene, we identified that phorbol esters dPPA (12-Deoxyphorbol 13-phenylacetate 20-acetate) and dPA (12-Deoxyphorbol 13-acetate) significantly increased furin protein and mRNA expression in SH-SY5Y cells. This effect was prevented by PKC (protein kinase C) inhibitor calphostin C but not Ro318220, suggesting that the C1 domain, rather than the catalytic domain of PKC plays an important role. Luciferase assay revealed that nucleotides -7925 to -7426 were sufficient to mediate dPPA/dPA enhancement of furin P1 promoter activity...
June 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28645103/colxv-promotes-adipocyte-differentiation-via-inhibiting-dna-methylation-and-camp-pka-pathway-in-mice
#9
Guannv Liu, Meihang Li, Yatao Xu, Song Wu, Muhammad Saeed, Chao Sun
Extracellular matrix (ECM), as an essential component of adipose tissue, not only provides mechanical support for adipocyte growth, but also participates in ECM-adipocyte communication via various secreted proteins, including highly enriched collagens. Collagen XV (ColXV) is a secreted non-fibrillar collagen within ECM Basement Membrane (BM) zones and well recognized as a tumor suppressor. However, the role of ColXV in adipose tissue is still unknown. In this study, high fat diet (HFD) fed mice were used as obese model, in which we deeply investigated the interaction between ColXV and adipocyte differentiation or adipose metabolism...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28645072/association-of-the-serum-myeloperoxidase-high-density-lipoprotein-particle-ratio-and-incident-cardiovascular-events-in-a-multi-ethnic-population-observations-from-the-dallas-heart-study
#10
Htet W Khine, John F Teiber, Robert W Haley, Amit Khera, Colby R Ayers, Anand Rohatgi
BACKGROUND AND AIMS: Myeloperoxidase (MPO), a product of systemic inflammation, promotes oxidation of lipoproteins; whereas, high-density lipoprotein (HDL) exerts anti-oxidative effects in part via paraoxonase-1 (PON1). MPO induces dysfunctional HDL particles; however, the interaction of circulating levels of these measures in cardiovascular disease (CVD) has not been studied in humans. We tested whether serum levels of MPO indexed to HDL particle concentration (MPO/HDLp) are associated with increased CVD risk in a large multiethnic population sample, free of CVD at baseline...
June 3, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28645066/hydrothermal-co-carbonization-of-sewage-sludge-and-pinewood-sawdust-for-nutrient-rich-hydrochar-production-synergistic-effects-and-products-characterization
#11
Xiaojuan Zhang, Lei Zhang, Aimin Li
The aim of this study is to explore the synergistic effects of hydrothermal co-carbonization of sewage sludge and pinewood sawdust on hydrochar production. Firstly, the effects of mixing ratios on hydrothermal carbonization were investigated, and then, the hydrochar was characterized by diverse analytical techniques. The mass balance results indicated that a significant synergistic enhancement occurred in terms of the increased hydrochar yield, organic and carbon retentions. By combining sewage sludge and pinewood sawdust at the mass ratio of 1:1, 58...
June 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28645058/promoting-physical-activity-in-high-poverty-neighborhood-parks-a-cluster-randomized-controlled-trial
#12
Deborah A Cohen, Bing Han, Kathryn P Derose, Stephanie Williamson, Terry Marsh, Laura Raaen, Thomas L McKenzie
Although physical activity can help mitigate or prevent multiple chronic diseases, most people in the U.S., especially high-poverty minority groups, engage in insufficient levels of physical activity. To test ways to promote more physical activity in high-poverty area public parks we conducted a randomized controlled intervention trial. After completing baseline measures of park-based physical activity using systematic direct observation three times/day each month for six months and assessing preferences for park programming among 1445 residents living within 1 mile of study parks, we randomized 48 parks in high poverty neighborhoods in the City of Los Angeles, California during 2013-2014 to four study arms: 1) free physical activity classes over a 6-month period, 2) a frequent user program where participants could win prizes based upon the number of visits they made to the park, 3) both the programs, and 4) neither one (control condition)...
June 3, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28645020/do-we-see-how-they-perceive-risk-an-integrated-analysis-of-risk-perception-and-its-effect-on-workplace-safety-behavior
#13
Nini Xia, Xueqing Wang, Mark A Griffin, Chunlin Wu, Bingsheng Liu
While risk perception is a key factor influencing safety behavior, the academia lacks specific attention to the ways that workers perceive risk, and thus little is known about the mechanisms through which different risk perceptions influence safety behavior. Most previous research in the workplace safety domain argues that people tend to perceive risk based on rational formulations of risk criticality. However, individuals' emotions can be also useful in understanding their perceptions. Therefore, this research employs an integrated analysis concerning the rational and emotional perspectives...
June 20, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28645007/activation-of-the-pi3k-akt-pathway-promotes-neuroprotection-of-the-%C3%AE-opioid-receptor-agonist-against-cerebral-ischemia-reperfusion-injury-in-rat-models
#14
Mei-Rong Lv, Bin Li, Ming-Guang Wang, Fan-Guo Meng, Jian-Jun Yu, Feng Guo, Ye Li
The central objective was to identify the role of the PI3K-Akt activation pathway on the neuroprotection of δ-opioid receptor agonist (DADLE) against cerebral ischemia-reperfusion (I/R) injury in a rat model. Fifty-five male Sprague-Dawley (SD) rats were included to establish a middle cerebral artery occlusion (MCAO) model which were then divided into the sham, MCAO, LY294002 (MCAO+DADLE+LY294002 [inhibitor of PI3K-Akt pathway]), DADLE (MCAO+DADLE) and DMSO (MCAO+DADLE+DMSO [dimethyl sulphoxide]) groups. The cerebral infarction (CI) volume and nerve cell apoptosis was determined using TTC and TUNEL staining...
June 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28644992/surface-coating-modulated-toxic-responses-to-silver-nanoparticles-in-wolffia-globosa
#15
Xiaoyan Zou, Penghui Li, Jie Lou, Hongwu Zhang
With the omnipresence of silver nanoparticles (AgNPs) in our daily consumer products, their release has raised serious concerns. However, the biochemical mechanisms by which plants counteract the toxicity of nanoparticles are largely unknown. This study investigated the exposure of aquatic Wolffia globosa to ATP-nAg (AgNPs coated with adenosine triphosphate), cit-nAg (AgNPs coated with citrate), and Ag(+). Hill reaction activity was basically lost in W. globosa treated with 10mg/L ATP-nAg and Ag(+), while the activity was still maintained at 38...
June 15, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28644976/biomaterials-that-promote-cell-cell-interactions-enhance-the-paracrine-function-of-mscs
#16
Taimoor H Qazi, David J Mooney, Georg N Duda, Sven Geissler
Mesenchymal stromal cells (MSCs) secrete paracrine factors that play crucial roles during tissue regeneration. Whether this paracrine function is influenced by the properties of biomaterials in general, and those used for cell delivery in particular, largely remains unexplored. Here, we investigated if three-dimensional culture in distinct microenvironments - nanoporous hydrogels (mean pore size ∼5 nm) and macroporous scaffolds (mean pore size ∼120 μm) - affects the secretion pattern of MSCs, and consequently leads to differential paracrine effects on target progenitor cells such as myoblasts...
June 18, 2017: Biomaterials
https://www.readbyqxmd.com/read/28644919/signaling-and-epigenetic-mechanisms-of-intestinal-stem-cells-and-progenitors-insight-into-crypt-homeostasis-plasticity-and-niches
#17
REVIEW
Ryan J Smith, Abilasha Rao-Bhatia, Tae-Hee Kim
The rapid turnover of intestinal epithelial cells is maintained by a small number of stem cells located in pocket-like gland structures called crypts. While our understanding of the identity and function of intestinal stem cells (ISCs) has rapidly progressed, epigenetic and transcriptional regulation in crypt stem cell and progenitor pools remains an active field of investigation. Surrounded by various types of cells in the stroma, crypt progenitors display high levels of plasticity, harboring the ability to interconvert in the face of epithelial damage...
June 23, 2017: Wiley Interdisciplinary Reviews. Developmental Biology
https://www.readbyqxmd.com/read/28644892/r-modafinil-exerts-weak-effects-on-spatial-memory-acquisition-and-dentate-gyrus-synaptic-plasticity
#18
Bharanidharan Shanmugasundaram, Yogesh D Aher, Jana Aradska, Marija Ilic, Daniel Daba Feyissa, Predrag Kalaba, Nilima Y Aher, Vladimir Dragacevic, Babak Saber Marouf, Thierry Langer, Harald H Sitte, Harald Hoeger, Gert Lubec, Volker Korz
Modafinil is a wake promoting drug approved for clinical use and also has cognitive enhancing properties. Its enantiomer R-Modafinil (R-MO) is not well studied in regard to cognitive enhancing properties. Hence we studied its effect in a spatial memory paradigm and its possible effects on dentate gyrus long-term potentiation (DG-LTP). Clinically relevant doses of R-MO, vehicle dimethyl sulfoxide (DMSO) or saline were administered for three days during the hole-board test and in in vivo DG-LTP. Synaptic levels of dopamine receptors D1R, D2R, dopamine transporter (DAT), and its phosphorylated form (ph-DAT) in DG tissue 4 h after LTP induction were quantified by western blot analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28644884/ligand-induced-rapid-skeletal-muscle-atrophy-in-hsa-fv2e-perk-transgenic-mice
#19
Masato Miyake, Masashi Kuroda, Hiroshi Kiyonari, Kenji Takehana, Satoshi Hisanaga, Masatoshi Morimoto, Jun Zhang, Miho Oyadomari, Hiroshi Sakaue, Seiichi Oyadomari
BACKGROUND: Formation of 43S and 48S preinitiation complexes plays an important role in muscle protein synthesis. There is no muscle-wasting mouse model caused by a repressed 43S preinitiation complex assembly. OBJECTIVE: The aim of the present study was to develop a convenient mouse model of skeletal muscle wasting with repressed 43S preinitiation complex assembly. MATERIAL AND METHODS: A ligand-activatable PERK derivative Fv2E-PERK causes the phosphorylation of eukaryotic initiation factor 2α (eIF2α), which inhibits 43S preinitiation complex assembly...
2017: PloS One
https://www.readbyqxmd.com/read/28644883/effects-of-dietary-inclusion-of-high-concentrations-of-crude-glycerin-on-meat-quality-and-fatty-acid-profile-of-feedlot-fed-nellore-bulls
#20
Eric H C B van Cleef, André P D'Áurea, Vanessa R Fávaro, Flavia O S van Cleef, Robson S Barducci, Marco T C Almeida, Otávio R Machado Neto, Jane M B Ezequiel
Crude glycerin, the main by-product of biodiesel production, can replace dietary energy sources, such as corn. The objective of this study was to evaluate the inclusion of up to 30% of crude glycerin in dry matter (DM) of the total diets, and its effects on meat quality parameters of feedlot Nellore bulls. Thirty animals (227.7 ± 23.8 kg body weight; 18 months old) were housed in individual pens and fed 5 experimental diets, containing 0, 7.5, 15, 22.5 or 30% crude glycerin (DM basis). After 103 d (21 d adaptation) animals were slaughtered and the Longissimus muscle was collected...
2017: PloS One
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