keyword
MENU ▼
Read by QxMD icon Read
search

OR efficiency

keyword
https://www.readbyqxmd.com/read/28938637/the-loss-of-function-of-dna-methyltransferase-1-by-sirna-impairs-the-growth-of-non-small-cell-lung-cancer-with-alleviated-side-effects-via-reactivation-of-rassf1a-and-apc-in-vitro-and-vivo
#1
Qi Lai, Yin-Hui Xu, Qiang Chen, Liang Tang, An-Gui Li, Li-Fei Zhang, Chun-Fang Zhang, Jian-Fei Song, Zhen-Zong Du
Hypermethylation of tumor suppressor genes (TSGs) promoters by DNA methyltransferase (DNMT) can be observed in almost all cancers which represent a hallmark of carcinogenesis, including lung cancer. DNMT inhibitors (e.g.5-Aza-CR/CdR) reactivate TSGs to exert anti-cancer activity and have been applied into the clinical. However, it is cytotoxic even at low concentrations, which might be not directly related to DNA methylation. We here investigated an alternative strategy in the lung cancer therapy and aimed to estimate and compare its efficiency and side effects of knockdown of DNMT1 in vitro and in vivo...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938620/pathological-expression-of-tissue-factor-confers-promising-antitumor-response-to-a-novel-therapeutic-antibody-sc1-in-triple-negative-breast-cancer-and-pancreatic-adenocarcinoma
#2
Xuesai Zhang, Qingrou Li, Hui Zhao, Lanping Ma, Tao Meng, Jianchang Qian, Rui Jin, Jingkang Shen, Ker Yu
The pathological presence of tissue factor (TF) in cancer cells promotes tumor-initiated thrombosis and cancer metastasis. We found that TF is aberrantly present in large percentage of aggressive triple negative breast cancer (TNBC) and pancreatic adenocarcinoma (PaC), two most lethal forms of malignancy that urgently need effective treatment. TF expression in TNBC clustered with higher levels of vimentin, basal-type keratins KRT5/14 and caveolin-1 but lower levels of luminal-type biomarkers. We developed a novel and specific anti-TF therapeutic antibody SC1, which displayed an exceedingly high potency against TF extracellular domain (EC50: 0...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938587/transcriptomic-profiles-of-human-foreskin-fibroblast-cells-in-response-to-orf-virus
#3
Daxiang Chen, Mingjian Long, Bin Xiao, Yufeng Xiong, Huiqin Chen, Yu Chen, Zhenzhan Kuang, Ming Li, Yingsong Wu, Daniel L Rock, Daoyuan Gong, Yong Wang, Haijian He, Fang Liu, Shuhong Luo, Wenbo Hao
Orf virus has been utilized as a safe and efficient viral vector against not only diverse infectious diseases, but also against tumors. However, the nature of the genes triggered by the vector in human cells is poorly characterized. Using RNA sequencing technology, we compared specific changes in the transcriptomic profiles in human foreskin fibroblast cells following infection by the orf virus. The results indicated that orf virus upregulates or downregulates expression of a variety of genes, including genes involved in antiviral immune response, apoptosis, cell cycle and a series of signaling pathways, such as the IFN and p53-signaling pathways...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938466/optogenetic-analysis-of-depolarization-dependent-glucagon-like-peptide-1-release
#4
Catalin Chimerel, Cristian Riccio, Keir Murison, Fiona M Gribble, Frank Reimann
Incretin hormones play an important role in the regulation of food intake and glucose homeostasis. Glucagon-like peptide-1 (GLP-1) secreting cells have been demonstrated to be electrically excitable and to fire action potentials (APs) with increased frequency in response to nutrient exposure. However, nutrients can also be metabolised or activate G-protein-coupled receptors, thus potentially stimulate GLP-1 secretion independent of their effects on the plasma membrane potential. Here we used channelrhodopsins to manipulate the membrane potential of GLUTag cells, a well established model of GLP-1 secreting enteroendocrine L-cells...
July 28, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938421/bortezomib-alone-and-in-combination-with-salinosporamid-a-induces-apoptosis-and-promotes-pheochromocytoma-cell-death-in-vitro-and-in-female-nude-mice
#5
Petra Bullova, Antony Cougnoux, Geena Marzouca, Juraj Kopacek, Karel Pacak
Proteasome inhibitors have been frequently used in treating hematologic and solid tumors. They are administered individually or in combination with other regimens, to prevent severe side effects and resistance development. Since they have been shown to be efficient and are pharmaceutically available, we tested the first FDA-approved proteasome inhibitor bortezomib alone and in combination with another proteasome inhibitor, salinosporamid A, in pheochromocytoma cells. Pheochromocytomas/paragangliomas (PHEOs/PGLs) are neuroendocrine tumors for which no definite cure is yet available...
August 15, 2017: Endocrinology
https://www.readbyqxmd.com/read/28938276/anesthesia-with-dexmedetomidine-and-low-dose-isoflurane-increases-solute-transport-via-the-glymphatic-pathway-in-rat-brain-when-compared-with-high-dose-isoflurane
#6
Helene Benveniste, Hedok Lee, Fengfei Ding, Qian Sun, Ehab Al-Bizri, Rany Makaryus, Stephen Probst, Maiken Nedergaard, Elliot A Stein, Hanbing Lu
BACKGROUND: The glymphatic pathway transports cerebrospinal fluid through the brain, thereby facilitating waste removal. A unique aspect of this pathway is that its function depends on the state of consciousness of the brain and is associated with norepinephrine activity. A current view is that all anesthetics will increase glymphatic transport by inducing unconsciousness. This view implies that the effect of anesthetics on glymphatic transport should be independent of their mechanism of action, as long as they induce unconsciousness...
September 22, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28938211/current-surface-ozone-concentrations-significantly-decrease-wheat-growth-yield-and-quality
#7
Håkan Pleijel, Malin C Broberg, Johan Uddling, Gina Mills
Tropospheric ozone is known to adversely affect crops and other vegetation. Most studies have focussed on the effects of elevated ozone levels vs. present ambient. We investigated the effect of present ambient surface ozone (O3) concentrations vs. preindustrial on a range of agronomically important response variables in field-grown wheat, using results from 33 experiments (representing 9 countries, 3 continents, 17 cultivars plus one set of 4 cultivars) having both charcoal filtered (CF) and non-filtered (NF) air treatments...
September 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28938209/interactions-between-biogenic-selenium-nanoparticles-and-goethite-colloids-and-consequence-for-remediation-of-elemental-mercury-contaminated-groundwater
#8
Xiaonan Wang, Daoyong Zhang, Haifeng Qian, Yan Liang, Xiangliang Pan, Geoffrey Michael Gadd
Ubiquitous colloidal minerals such as goethite can have a significant impact on the performance of nanoparticles-based groundwater remediation due to aggregation. Heteroaggregation and retention of Se nanoparticles (SeNPs) by goethite in groundwater, and its impact on Hg(0) remediation by SeNPs were investigated in this study. In order to mitigate the adverse effects of aggregation, the effects of bacterial extracellular polymeric substances (EPS) on the stability of SeNPs and Hg(0) sequestration using SeNPs were also evaluated...
September 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28938172/artificial-intelligence-for-breast-cancer-screening-opportunity-or-hype
#9
Nehmat Houssami, Christoph I Lee, Diana S M Buist, Dacheng Tao
Interpretation of mammography for breast cancer (BC) screening can confer a mortality benefit through early BC detection, can miss a cancer that is present or fast growing, or can result in false-positives. Efforts to improve screening outcomes have mostly focused on intensifying imaging practices (double instead of single-reading, more frequent screens, or supplemental imaging) that may add substantial resource expenditures and harms associated with population screening. Less attention has been given to making mammography screening practice 'smarter' or more efficient...
September 19, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28938056/short-term-effects-of-light-quality-on-leaf-gas-exchange-and-hydraulic-properties-of-silver-birch-betula-pendula
#10
Aigar Niglas, Kaisa Papp, Maciej Sekiewicz, Arne Sellin
Leaves have to acclimatize to heterogeneous radiation fields inside forest canopies in order to efficiently exploit diverse light conditions. Short-term effects of light quality on photosynthetic gas exchange, leaf water use and hydraulic traits were studied on Betula pendula Roth shoots cut from upper and lower thirds of the canopy of 39- to 35-year-old trees growing in natural forest stand, and illuminated with white, red or blue light in the laboratory. Photosynthetic machinery of the leaves developed in different spectral conditions acclimated differently with respect to incident light spectrum: the stimulating effect of complete visible spectrum (white light) on net photosynthesis is more pronounced in upper-canopy layers...
September 1, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28938017/a-highly-conserved-amino-acid-in-vp1-regulates-maturation-of-enterovirus-71
#11
Yong-Xin Zhang, Yu-Ming Huang, Quan-Jie Li, Xiao-Yu Li, Yong-Dong Zhou, Fei Guo, Jin-Ming Zhou, Shan Cen
Enterovirus 71 (EV71) is the major causative agent of hand, foot and mouth disease (HFMD) in children, causing severe clinical outcomes and even death. Here, we report an important role of the highly conserved alanine residue at position 107 in the capsid protein VP1 (VP1A107) in the efficient replication of EV71. Substitutional mutations of VP1A107 significantly diminish viral growth kinetics without significant effect on viral entry, expression of viral genes and viral production. The results of mechanistic studies reveal that VP1A107 regulates the efficient cleavage of the VP0 precursor during EV71 assembly, which is required, in the next round of infection, for the transformation of the mature virion (160S) into an intermediate or A-particle (135S), a key step of virus uncoating...
September 22, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28938005/recombinant-vaccines-of-a-cd4-t-cell-epitope-promote-efficient-control-of-paracoccidioides-brasiliensis-burden-by-restraining-primary-organ-infection
#12
Rodrigo Assunção Holanda, Julián Esteban Muñoz, Lucas Santos Dias, Leandro Buffoni Roque Silva, Julliana Ribeiro Alves Santos, Sthefany Pagliari, Érica Leandro Marciano Vieira, Tatiane Alves Paixão, Carlos Pelleschi Taborda, Daniel Assis Santos, Oscar Bruña-Romero
Paracoccidioidomycosis (PCM) is an infectious disease endemic to South America, caused by the thermally dimorphic fungi Paracoccidioides. Currently, there is no effective human vaccine that can be used in prophylactic or therapeutic regimes. We tested the hypothesis that the immunogenicity of the immunodominant CD4+ T-cell epitope (P10) of Paracoccidioides brasiliensis gp43 antigen might be significantly enhanced by using a hepatitis B virus-derived particle (VLP) as an antigen carrier. This chimera was administered to mice as a (His)6-purified protein (rPbT) or a replication-deficient human type 5 adenoviral vector (rAdPbT) in an immunoprophylaxis assay...
September 22, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28938003/oxsa-an-open-source-magnetic-resonance-spectroscopy-analysis-toolbox-in-matlab
#13
Lucian A B Purvis, William T Clarke, Luca Biasiolli, Ladislav Valkovič, Matthew D Robson, Christopher T Rodgers
In vivo magnetic resonance spectroscopy provides insight into metabolism in the human body. New acquisition protocols are often proposed to improve the quality or efficiency of data collection. Processing pipelines must also be developed to use these data optimally. Current fitting software is either targeted at general spectroscopy fitting, or for specific protocols. We therefore introduce the MATLAB-based OXford Spectroscopy Analysis (OXSA) toolbox to allow researchers to rapidly develop their own customised processing pipelines...
2017: PloS One
https://www.readbyqxmd.com/read/28937992/efficient-generation-of-mutations-mediated-by-crispr-cas9-in-the-hairy-root-transformation-system-of-brassica-carinata
#14
Thomas W Kirchner, Markus Niehaus, Thomas Debener, Manfred K Schenk, Marco Herde
A protocol for the induction of site-directed deletions and insertions in the genome of Brassica carinata with CRISPR is described. The construct containing the Cas9 nuclease and the guide RNA (gRNA) was delivered by the hairy root transformation technique, and a successful transformation was monitored by GFP fluorescence. PAGE analysis of an amplified region, presumably containing the deletions and insertions, demonstrated up to seven different indels in one transgenic root and in all analyzed roots a wildtype allele of the modified gene was not detectable...
2017: PloS One
https://www.readbyqxmd.com/read/28937982/protein-complex-prediction-via-dense-subgraphs-and-false-positive-analysis
#15
Cecilia Hernandez, Carlos Mella, Gonzalo Navarro, Alvaro Olivera-Nappa, Jaime Araya
Many proteins work together with others in groups called complexes in order to achieve a specific function. Discovering protein complexes is important for understanding biological processes and predict protein functions in living organisms. Large-scale and throughput techniques have made possible to compile protein-protein interaction networks (PPI networks), which have been used in several computational approaches for detecting protein complexes. Those predictions might guide future biologic experimental research...
2017: PloS One
https://www.readbyqxmd.com/read/28937913/dietary-euphorbia-hirta-extract-improved-the-resistance-of-african-catfish-clarias-gariepinus-to-aeromonas-hydrophila
#16
Atefeh Sheikhlar, Goh Yong Meng, Razak Alimon, Nicholas Romano, Mahdi Ebrahimi
Aqueous and methanol extracts of lemon (Citrus lemon) peel, Euphorbia hirta (aerial parts) and fenugreek (Trigonella foenum-graecum) seeds were tested for their in vitro antimicrobial activities against the bacterium Aeromonas hydrophila. A swab paper disk method showed the methanol extract of E. hirta (EHE) had the largest inhibition zone and the lowest minimal inhibitory concentration compared to all other herbal extracts. Based on these results, EHE was included in the diets of African catfish (Clarias gariepinus) at 0 (control), 2, 5 or 7 g/kg diet (experiment 1)...
September 22, 2017: Journal of Aquatic Animal Health
https://www.readbyqxmd.com/read/28937801/clinical-implications-of-hand-position-and-lower-limb-length-measurement-method-on-y-balance-test-scores-and-interpretation
#17
Kim Hébert-Losier
CONTEXT:   The Lower Quarter Y-Balance Test (LQ-YBT) was developed to provide an effective and efficient screen for injury risk in sports. Earlier protocol recommendations for the LQ-YBT involved the athlete placing the hands on the hips and the clinician normalizing scores to lower limb length measured from the anterior-superior iliac spine to the lateral malleolus. The updated LQ-YBT protocol recommends the athlete's hands be free moving and the clinician measure lower limb length to the medial malleolus...
September 22, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28937793/investigating-the-antiangiogenic-anti-drug-resistance-and-apoptotic-effects-of-soy-isoflavone-extract-alone-or-in-combination-with-docetaxel-on-murine-4t1-breast-tumor-model
#18
Ehsan Hejazi, Maryam Tavakoli, Mahmood Jeddi-Tehrani, Masoud Kimiagar, Jalal Hejazi, Mohammad Houshyari, Zohre Amiri, Hale Edalatkhah, Javad Nasrollahzadeh, Farah Idali
BACKGROUND: One major concern in the treatment of cancer patients during chemotherapy is drug resistance. Here we investigated the effects of soy isoflavone extracts alone or in combination with Docetaxel on the drug resistance, angiogenesis, apoptosis, and tumor volume in mouse 4T1 breast tumor model. METHODS: Sixty female BALB/c mice were randomly divided into 4 groups: control, dietary soy isoflavone extract [Iso, 100 mg/kg diet (0.01%)], Docetaxel (10 mg/kg) injection, and the combination of dietary soy isoflavone extract and intravenous Docetaxel injection (Docetaxel + Iso)...
September 22, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28937791/web-based-surveillance-of-illness-in-childcare-centers
#19
Natalie Schellpfeffer, Abaigeal Collins, David C Brousseau, Emily T Martin, Andrew Hashikawa
School absenteeism is an inefficient and unspecific metric for measuring community illness and does not provide surveillance during summertime. Web-based biosurveillance of childcare centers may represent a novel way to efficiently monitor illness outbreaks year-round. A web-based biosurveillance program ( sickchildcare.org ) was created and implemented in 4 childcare centers in a single Michigan county. Childcare providers were trained to report sick children who required exclusion or had parent-reported absences due to illness...
September 22, 2017: Health Security
https://www.readbyqxmd.com/read/28937776/4-c-methoxy-2-deoxy-2-fluoro-modified-ribonucleotides-improve-metabolic-stability-and-elicit-efficient-rnai-mediated-gene-silencing
#20
Elise Malek-Adamian, Dale Guenther, Shigeo Matsuda, Saúl Martínez-Montero, Ivan Zlatev, Joel Harp, Mihai Burai Patrascu, Donald J Foster, Johans J Fakhoury, Lydia Perkins, Nicolas Moitessier, Rajar Manoharan, Nate Taneja, Anna Bisbe, Klaus Charisse, Martin A Maier, Kallanthottathil G Rajeev, Martin Egli, Muthiah Manoharan, Masad J Damha
We designed novel 4'-modified 2'-deoxy-2'-fluorouridine (2'-F U) analogues with the aim to improve nuclease resistance and potency of therapeutic siRNAs by introducing 4'-C-methoxy (4'-OMe) as the alpha (C4'α) or beta (C4'β) epimers. The C4'α epimer was synthesized by a stereoselective route in six steps; however, both α and β epimers could be obtained by a non-stereoselective approach starting from 2'-F U. (1)H-NMR analysis and computational investigation of the α-epimer revealed that the 4'-OMe imparts a conformational bias towards the North-East sugar pucker, due to intramolecular hydrogen bonding and hyperconjugation effects...
September 22, 2017: Journal of the American Chemical Society
keyword
keyword
6272
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"