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https://www.readbyqxmd.com/read/29158991/ndufa4l2-is-associated-with-clear-cell-renal-cell-carcinoma-malignancy-and-is-regulated-by-elk1
#1
Lei Wang, Zhiqiang Peng, Kaizhen Wang, Yijun Qi, Ying Yang, Yue Zhang, Xinyuan An, Shudong Luo, Junfang Zheng
Background: Clear cell renal cell carcinoma (ccRCC) is the most common and lethal cancer of the adult kidney. However, its pathogenesis has not been fully understood till now, which hinders the therapeutic development of ccRCC. NADH dehydrogenase (ubiquinone) 1 alpha subcomplex 4-like 2 (NDUFA4L2) was found to be upregulated and play an important role in ccRCC. We aimed to further investigate the underlying mechanisms by which NDUFA4L2 exerted function and its expression level was upregulated...
2017: PeerJ
https://www.readbyqxmd.com/read/29149304/tobacco-content-in-video-games-categorization-of-tobacco-typologies-and-gamer-recall
#2
Susan R Forsyth, Ruth E Malone
Introduction: Tobacco content has been identified in popular video games played by adolescents. To date, there are no established instruments for categorizing tobacco content. We describe development and demonstrate the use of an instrument to categorize types of tobacco content. Methods: Interviews were conducted with 61 participants: 20 adolescents (mean age 17.7), and 41 adults (mean age 23.9), who discussed favorite games and recalled tobacco content. All games mentioned were examined for tobacco content by watching movies of game play on YouTube, examining individual game Wiki sites, and reviewing content descriptors provided by the Entertainment Software Rating Board (ESRB), Common Sense Media and the Internet Movie Database (IMDb)...
November 15, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/29138450/quantifying-quantum-coherence-with-quantum-fisher-information
#3
X N Feng, L F Wei
Quantum coherence is one of the old but always important concepts in quantum mechanics, and now it has been regarded as a necessary resource for quantum information processing and quantum metrology. However, the question of how to quantify the quantum coherence has just been paid the attention recently (see, e.g., Baumgratz et al. PRL, 113. 140401 (2014)). In this paper we verify that the well-known quantum Fisher information (QFI) can be utilized to quantify the quantum coherence, as it satisfies the monotonicity under the typical incoherent operations and the convexity under the mixing of the quantum states...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29135022/a-fast-and-simple-method-to-estimate-relative-hyphal-tensile-strength-of-filamentous-fungi-used-to-assess-the-effect-of-autophagy
#4
Daniela Quintanilla, Cynthia Chelius, Sirasa Iambamrung, Sidney Nelson, Donnel Thomas, Krist V Gernaey, Mark R Marten
Fungal hyphal strength is an important phenotype which can have a profound impact on bioprocess behavior. Until now, there is not an efficient method which allows its characterization. Currently available methods are very time consuming; thus, compromising their applicability in strain selection and process development. To overcome this issue, a method for fast and easy, statistically-verified quantification of relative hyphal tensile strength was developed. It involves off-line fragmentation in a high shear mixer followed by quantification of fragment size using laser diffraction...
November 14, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29126896/the-continuous-challenge-of-af-ablation-from-foci-to-rotational-activity
#5
REVIEW
Sanjiv M Narayan, Mohan N Vishwanathan, Christopher A B Kowalewski, Tina Baykaner, Miguel Rodrigo, Junaid A B Zaman, Paul J Wang
Pulmonary vein isolation (PVI) is central to ablation approaches for atrial fibrillation (AF), yet many patients still have arrhythmia recurrence after one or more procedures despite the latest technology for PVI. Ablation of rotational or focal sources for AF, which lie outside the pulmonary veins in many patients, is a practical approach that has been shown to improve success by many groups. Localized sources lie in atrial regions shown mechanistically to sustain AF in optical mapping and clinical studies of human AF, as well as computational and animal studies...
November 7, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29117879/human-parasitology-worldwide-research
#6
Jose Antonio Garrido-Cardenas, Concepción Mesa-Valle, Francisco Manzano-Agugliaro
In this article, the trends in human parasitology have been studied through the analysis of the number of publications in this area. The parameters studied were: number of articles, language, countries and institutions with the highest number of publications, and keywords with greater presence in the articles of human parasitology. The results of the analysis confirm the growing interest in this area, observing an exponential growth in the number of publications in the last decades. We also verified that the main country in terms of scientific production is the USA, although among the most important institutions, we find non-US centres such as the Oswaldo Cruz Foundation and the London School of Hygiene and Tropical Medicine...
November 9, 2017: Parasitology
https://www.readbyqxmd.com/read/29117513/mechanisms-of-dietary-flavonoid-action-in-neuronal-function-and-neuroinflammation
#7
REVIEW
Baptiste N Jaeger, Sarah L Parylak, Fred H Gage
Flavonoids are a class of plant-derived dietary polyphenols that have attracted attention for their pro-cognitive and anti-inflammatory effects. The diversity of flavonoids and their extensive in vivo metabolism suggest that a variety of cellular targets in the brain are likely to be impacted by flavonoid consumption. Initially characterized as antioxidants, flavonoids are now believed to act directly on neurons and glia via the interaction with major signal transduction cascades, as well as indirectly via interaction with the blood-brain barrier and cerebral vasculature...
November 5, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29112590/effect-of-andrographolide-on-gene-expression-profile-and-intracellular-calcium-in-primary-rat-myocardium-microvascular-endothelial-cells
#8
Bo Feng, Qian Zhang, Xin Wang, Xiangwan Sun, Xiang Mu, Hong Dong
Andrographolide (ANDRO) is a diterpene lactone compound with extensive biological effects, such as antibacterial, antitumor and treatment of cardiovascular diseases. Until now, studies on the pharmacological functions of ANDRO are still in progress. However, little is known about the gene expression profile and calcium response of endothelial cells to ANDRO. In this study, we used a microarray technology to investigate the gene expression responses in primary rat myocardium microvascular endothelial cells (RMMECs) treated with 10μg/mL ANDRO...
October 31, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29106588/nlsdb-major-update-for-database-of-nuclear-localization-signals-and-nuclear-export-signals
#9
Michael Bernhofer, Tatyana Goldberg, Silvana Wolf, Mohamed Ahmed, Julian Zaugg, Mikael Boden, Burkhard Rost
NLSdb is a database collecting nuclear export signals (NES) and nuclear localization signals (NLS) along with experimentally annotated nuclear and non-nuclear proteins. NES and NLS are short sequence motifs related to protein transport out of and into the nucleus. The updated NLSdb now contains 2253 NLS and introduces 398 NES. The potential sets of novel NES and NLS have been generated by a simple 'in silico mutagenesis' protocol. We started with motifs annotated by experiments. In step 1, we increased specificity such that no known non-nuclear protein matched the refined motif...
November 2, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29100309/evaluating-oral-epithelial-dysplasia-classification-system-by-near-infrared-raman-spectroscopy
#10
Bo Li, Zhi-Yu Gu, Kai-Xiao Yan, Zhi-Ning Wen, Zhi-He Zhao, Long-Jiang Li, Yi Li
Until now, the classification system of oral epithelial dysplasia is still based on the architectural and cytological changes, which relies on the observation of pathologists and is relatively subjective. The purpose of present research was to discriminate the oral dysplasia by the near-infrared Raman spectroscope, in order to evaluate the classification system. We collected Raman spectra of normal mucosa, oral squamous cell carcinoma (OSCC) and dysplasia by near-infrared Raman spectroscope. The biochemical variations between different stages were analyzed by the characteristic peaks in the subtracted mean spectra...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29093213/unexpected-connections-between-humidity-and-ion-transport-discovered-using-a-model-to-bridge-guard-cell-to-leaf-scales
#11
Yizhou Wang, Adrian Hills, Silvere Rm Vialet-Chabrand, Maria Papanatsiou, Howard Griffiths, Simon Rogers, Tracy Lawson, Virgilio Lew, Michael R Blatt
Stomatal movements depend on the transport and metabolism of osmotic solutes that drive reversible changes in guard cell volume and turgor. These processes are defined by a deep knowledge of the identities of the key transporters and of their biophysical and regulatory properties, and have been modelled successfully with quantitative kinetic detail at the cellular level. Transpiration of the leaf and canopy, by contrast, is described by quasi-linear, empirical relations for the inputs of atmospheric humidity, CO2, and light, but without connection to guard cell mechanics...
November 1, 2017: Plant Cell
https://www.readbyqxmd.com/read/29089478/direct-observation-of-the-nanoscale-kirkendall-effect-during-galvanic-replacement-reactions
#12
See Wee Chee, Shu Fen Tan, Zhaslan Baraissov, Michel Bosman, Utkur Mirsaidov
Galvanic replacement (GR) is a simple and widely used approach to synthesize hollow nanostructures for applications in catalysis, plasmonics, and biomedical research. The reaction is driven by the difference in electrochemical potential between two metals in a solution. However, transient stages of this reaction are not fully understood. Here, we show using liquid cell transmission electron microscopy that silver (Ag) nanocubes become hollow via the nucleation, growth, and coalescence of voids inside the nanocubes, as they undergo GR with gold (Au) ions at different temperatures...
October 31, 2017: Nature Communications
https://www.readbyqxmd.com/read/29084213/reassessment-of-areas-with-persistent-lymphatic-filariasis-nine-years-after-cessation-of-mass-drug-administration-in-sri-lanka
#13
Ramakrishna U Rao, Sandhya D Samarasekera, Kumara C Nagodavithana, Tharanga D M Dassanayaka, Manjula W Punchihewa, Udaya S B Ranasinghe, Gary J Weil
BACKGROUND: Sri Lanka was one of the first countries to initiate a lymphatic filariasis (LF) elimination program based on WHO guidelines. The Anti-Filariasis Campaign provided 5 annual rounds of mass drug administration (MDA) with diethylcarbamazine plus albendazole in all 8 endemic districts from 2002-2006. Microfilaremia (Mf) prevalences have been consistently <1% in all sentinel and spot-check sites since 2006, and all evaluation units passed school-based transmission assessment surveys (TAS) in 2013...
October 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29080797/modulations-of-dnmt1-and-hdac1-are-involved-in-the-ota-induced-cytotoxicity-and-apoptosis-in-vitro
#14
Yajiao Zhou, Fang Gan, Lili Hou, Xuan Zhou, Yassin Abdulrahim Adam Ibrahim, Kehe Huang
Ochratoxin A (OTA) as a fungal metabolite is reported to induce cytotoxicity and apoptosis through the mechanism of oxidative stress. Oxidative stress could induce the epigenetic enzymes modifications. However, whether epigenetic enzymes modifications are involved in OTA-induced cytotoxicity and apoptosis has not been reported until now. Therefore, the objectives of this study were to verify OTA-induced cytotoxicity and apoptosis and to investigate the potential role of epigenetic enzymes in OTA-induced cytotoxicity and apoptosis in PK15 cells...
November 2, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29073644/spatial-representation-in-the-hippocampal-formation-a-history
#15
REVIEW
Edvard I Moser, May-Britt Moser, Bruce L McNaughton
Since the first place cell was recorded and the cognitive-map theory was subsequently formulated, investigation of spatial representation in the hippocampal formation has evolved in stages. Early studies sought to verify the spatial nature of place cell activity and determine its sensory origin. A new epoch started with the discovery of head direction cells and the realization of the importance of angular and linear movement-integration in generating spatial maps. A third epoch began when investigators turned their attention to the entorhinal cortex, which led to the discovery of grid cells and border cells...
October 26, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/29068717/the-know%C3%A2-now-project-facilitated-serosorting-in-hiv-status-sexual-partner-communication
#16
Stephen M Haas, Joseph D Perazzo, Andrew H Ruffino, Rachel M Ancona, Michael Lyons
An intervention was conducted providing access to clinic-verified HIV test results via a secure, web-based informatics platform to facilitate sexual partner HIV-status communication. Participants (N = 28) were men who have sex with men (MSM; HIV- n = 8, HIV+ n = 8) and heterosexuals (Non-MSM, n = 12). Focus groups with same-group members explored interest in using the intervention and baseline attitudes and practices relevant to serosorting. HIV-negative participants overwhelmingly expressed interest, regardless of MSM status...
October 2017: AIDS Education and Prevention: Official Publication of the International Society for AIDS Education
https://www.readbyqxmd.com/read/29058812/the-effects-of-curcumin-on-hct-116-cells-proliferation-and-apoptosis-via-the-mir-491-peg10-pathway
#17
Bai Li, Chong Shi, Bo Li, Jing-Ming Zhao, Lei Wang
Paternally expressed gene-10 (PEG10) could participate in several carcinomas and might be regulated by miR-491. To now, miR-491 was found to play an important role in the sensitivity and mechanism of drug usage in the treatment of colorectal cancer, and drug resistance is a key factor to affect the disease healing. In this study, miR-491, PEG10, Wnt1 and β-catenin expression levels and their correlation with colorectal cancer were assessed in cancer tissues and adjacent parts. And the target relationship between PEG10 and miR-491 was verified...
October 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29049190/chronic-active-epstein-barr-virus-infection-as-the-initial-symptom-in-a-janus-kinase-3-deficiency-child-case-report-and-literature-review
#18
REVIEW
Linqing Zhong, Wei Wang, Mingsheng Ma, Lijuan Gou, Xiaoyan Tang, Hongmei Song
RATIONALE: With the progress of sequencing technology, an increasing number of atypical primary immunodeficiency (PID) patients have been discovered, including Janus kinase 3 (JAK3) gene deficiency. PATIENT CONCERNS: We report a patient who presented with chronic active Epstein-Barr virus (CAEBV) infection but responded poorly to treatment with ganciclovir. DIAGNOSES: Next-generation sequencing (NGS) was performed, including all known PID genes, after which Sanger sequencing was performed to verify the results...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29021300/high-resolution-epitope-positioning-of-a-large-collection-of-neutralizing-and-non-neutralizing-single-domain-antibodies-on-ricin-toxin-s-enzymatic-and-binding-subunits
#19
David J Vance, Jacqueline M Tremblay, Yinghui Rong, Siva Krishna Angalakurthi, David B Volkin, C Russell Middaugh, David D Weis, Charles B Shoemaker, Nicholas J Mantis
We previously produced a heavy chain-only antibody VH domain (VHH)-displayed phage library from two alpacas that had been immunized with ricin toxoid and non-toxic mixtures of ricin's enzymatic (RTA) and binding (RTB) subunits (Vance et al J. Biol. Chem. 288:36538-47. doi: 10.1074/jbc.M113.519207). Initial and subsequent screens of that library by direct ELISA yielded more than two dozen unique RTA- and RTB-specific VHHs, including 10 whose structures were subsequently solved in complex with RTA. To generate a more complete antigenic map of ricin toxin and define the epitopes associated with toxin-neutralizing activity, we subjected the VHH-displayed phage library to additional pannings on both receptor bound and antibody-captured ricin...
October 11, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/29018092/molecular-characterization-and-verification-of-azido-3-8-dideoxy-d-manno-oct-2-ulosonic-acid-incorporation-into-bacterial-lipopolysaccharide
#20
Inga Nilsson, Kerri Grove, Dustin Dovala, Tsuyoshi Uehara, Guillaume Lapointe, David A Six
3-Deoxy-D-manno-oct-2-ulosonic acid (Kdo) is an essential component of LPS in the outer leaflet of the Gram-negative bacterial outer membrane. While labeling of Escherichia coli with the chemical reporter 8-azido-3,8-dideoxy-D-manno-oct-2-ulosonic acid (Kdo-N3) has been reported, its incorporation into LPS has not been directly shown. We have now verified Kdo-N3 incorporation into E. coli LPS at the molecular level. Using PAGE analysis, we show that Kdo-N3 is localized to the outer membrane and specifically incorporates into rough and deep-rough LPS...
October 9, 2017: Journal of Biological Chemistry
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