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https://www.readbyqxmd.com/read/29141555/evaluation-of-antineoplastic-effects-of-nf-%C3%AE%C2%BAb-inhibition-by-dhmeq-dehydroxymethylepoxyquinomicin-in-medulloblastoma-cell-lines
#1
Priscila Maria Manzini Ramos, Julia Alejandra Pezuk, Angel Mauricio Castro-Gamero, Harley Francisco de Oliveira, Carlos Alberto Scrideli, Kazuo Umezawa, Luiz Gonzaga Tone
PURPOSE: NF-κB is a transcription factor involved in the transcriptional regulation of a large number of genes related to tumorigenesis in several cancer cell types, and it's inhibition have been related to anticancer effect. DHMEQ (Dehydroxymethylepoxyquinomicin) is a compound that blocks the translocation of NF-κB from the cytoplasm to the nucleus, thus inhibiting its activity as a transcriptional activator. Several studies have shown the antineoplastic effects of DHMEQ in numerous tumor types, however, there are no surveys that tested their effects in MB...
November 13, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29140506/quantification-of-the-effect-of-toxicants-on-the-intracellular-kinetic-energy-and-cross-sectional-area-of-mammary-epithelial-organoids-by-oct-fluctuation-spectroscopy
#2
Xiao Yu, Ashley M Fuller, Richard Blackmon, Melissa A Troester, Amy L Oldenburg
The ability to assess toxicant exposures of three-dimensional (3D) in vitro mammary models that recapitulate the tissue microenvironment can aid in our understanding of environmental exposure risk over time. Longitudinal studies of 3D model systems, however, are cumbersome and suffer from a lack of high-throughput toxicological assays. In this study, we establish a noninvasive and label-free optical coherence tomography (OCT)-based imaging platform for tracking exposure-response relationships in 3D human mammary epithelial organoid models...
November 10, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29139299/integrating-zeolite-type-chalcogenide-with-titanium-dioxide-nanowires-for-enhanced-photoelectrochemical-activity
#3
Chengyu Mao, Yanxiang Wang, Wei Jiao, Xitong Chen, Qipu Lin, Mingli Deng, Yun Ling, Yaming Zhou, Xianhui Bu, Pingyun Feng
Developing photoanodes with efficient visible-light harvesting and excellent charge separation still remains a key challenge in photoelectrochemical water splitting. Here zeolite-type chalcogenide CPM-121 is integrated with TiO2 nanowires to form a heterostructured photoanode, in which crystalline CPM-121 particles serve as a visible light absorber and TiO2 nanowires serve as an electron conductor. Owing to the small band gap of chalcogenides, the hybrid electrode demonstrates obvious absorption in visible-light range...
November 15, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29131611/synthesis-and-in-vitro-evaluation-of-monodisperse-amino-functional-polyester-dendrimers-with-rapid-degradability-and-antibacterial-properties
#4
Patrik Stenström, Erik Hjort, Yuning Zhang, Oliver C J Andrén, Simon Guette-Marquet, Marianne Schultzberg, Michael Malkoch
Amine functional polymers, especially cationically charged, are interesting biomacromolecules for several reasons including easy cell membrane entrance, their ability to escape endosomes through the proton sponge effect, spontaneous complexation and delivery of drugs and siRNA and simple functionalization in aqueous solutions. Dendrimers, a subclass of precision polymers, are monodisperse and exhibit a large and exact number of peripheral end groups in relation to their size and have shown promise in drug delivery, biomedical imaging and as anti-viral agents...
November 13, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/29126272/generation-of-alloantigen-specific-induced-treg-stabilized-by-vitamin-c-treatment-and-its-application-for-prevention-of-acute-graft-versus-host-disease-model
#5
Hidenori Kasahara, Taisuke Kondo, Hiroko Nakatsukasa, Shunsuke Chikuma, Minako Ito, Makoto Ando, Yutaka Kurebayashi, Takashi Sekiya, Taketo Yamada, Shinichiro Okamoto, Akihiko Yoshimura
Antigen-specific regulatory T cells (Tregs) possess the potential to reduce excess immune responses in autoimmune diseases, allergy, rejection after organ transplantation, and graft-versus-host disease (GVHD) in hematopoietic stem-cell transplantation. Although in vitro-expanded antigen-specific induced Tregs (iTregs) have been considered to be a promising therapeutic agent against such excessive immune reactions, the instability of iTregs after transfer is a fundamental problem in their clinical application...
November 4, 2017: International Immunology
https://www.readbyqxmd.com/read/29125269/direct-oral-anticoagulants-use-in-elderly-patients-with-non-valvular-atrial-fibrillation-state-of-evidence
#6
Giulia Benedetti, Matteo Neccia, Luciano Agati
Non-valvular atrial fibrillation (NVAF) increases the risk of stroke by three- to five-fold, especially in elderly patients, creating a huge burden on medical system as well as a negative impact on patients lives. Balancing efficacy and bleeding risk is a challenge when considering anticoagulation therapy in elderly patients, because of their frequent high risk of both stroke and bleeding. Real world data reveal the underuse of anticoagulation in the elderly, especially due to physicians' fear of bleeding, often neglecting the thromboembolic risk...
November 10, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29124836/living-ab-initio-emulsion-polymerization-of-methyl-methacrylate-in-water-using-a-water-soluble-organotellurium-chain-transfer-agent-under-thermal-and-photochemical-conditions
#7
Weijia Fan, Masatoshi Tosaka, Shigeru Yamago, Michael F Cunningham
Ab initio emulsion polymerization of methyl methacrylate (MMA) using a water-soluble organotellurium chain transfer agent in the presence of the surfactant Brij 98 in water is reported. Polymerization proceeded under both thermal and visible light-irradiation conditions giving poly(methyl methacrylate) (PMMA) with controlled molecular weight and low dispersity (Đ<1.5). Despite the formation of an opaque latex, the photo-activation of the organotellurium dormant species took place efficiently as demonstrated by the quantitative monomer conversion and temporal control...
November 10, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29124482/apociii-as-a-cardiovascular-risk-factor-and-modulation-by-the-novel-lipid-lowering-agent-volanesorsen
#8
REVIEW
Natalia A Rocha, Cara East, Jun Zhang, Peter A McCullough
PURPOSE OF REVIEW: Apolipoprotein CIII (ApoCIII) is now recognized as a key regulator in severe hypertriglyceridemia, chylomicronemia, and conditions of triglyceride-rich lipoprotein (TRL) remnant excess due to its inhibition of lipoprotein lipase (LPL) and hepatic lipase, leading to decreased hepatic reuptake of TRLs, as well as enhanced synthesis and secretion of VLDL from the liver. ApoCIII gain-of-function mutations are associated with atherosclerosis and coronary heart disease (CHD), and contribute to the development of cardiometabolic syndrome, hypertriglyceridemia, and type 2 diabetes mellitus...
November 9, 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29124272/lithiation-assisted-exfoliation-and-reduction-of-sns2-to-sns-decorated-on-lithium-integrated-graphene-for-efficient-energy-storage
#9
Bing Zhao, Fang Chen, Zhixuan Wang, Shoushuang Huang, Yong Jiang, Zhiwen Chen
Low reversion of lithium sulfide and defects causing irreversible capacity loss are the primary causes of low Coulombic efficiency in tin sulfide/graphene-based composites. Herein, we synthesized a SnS/graphene composite via a novel lithiation-assisted exfoliation and reduction method using SnS2, n-butyllithium, and graphene oxide as raw materials. The experimental results reveal that lithium from the insertion agent combine with the oxygen-containing groups on graphene oxide; this can help in the reduction of hexagonal SnS2 to orthorhombic SnS during calcination and simultaneous pre-occupancy of the edge and defect sites of graphene; thus, additional lithium ion consumption during the initial several lithiation processes is diminished...
November 10, 2017: Nanoscale
https://www.readbyqxmd.com/read/29122481/protective-effect-of-casuarinin-against-glutamate-induced-apoptosis-in-ht22-cells-through-inhibition-of-oxidative-stress-mediated-mapk-phosphorylation
#10
Ji Hoon Song, Ki Sung Kang, You-Kyung Choi
Glutamate is the major excitatory neurotransmitter in the central nervous system and is involved in oxidative stress during neurodegeneration. In the present study, casuarinin prevented glutamate-induced HT22 murine hippocampal neuronal cell death by inhibiting intracellular reactive oxygen species (ROS) production. Moreover, casuarinin reduced chromatin condensation and annexin-V-positive cell production induced by glutamate. We also confirmed the underlying protective mechanism of casuarinin against glutamate-induced neurotoxicity...
November 1, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29119263/electronic-properties-of-the-polypyrrole-dopant-anions-clo4-and-moo4-2-a-density-functional-theory-study
#11
Nguyen Ngoc Ha, Ngo Tuan Cuong, Hoang Van Hung, Ha Manh Hung, Vu Quoc Trung
The conductive properties of polypyrrole chains doped with ClO4(-) or MoO4(2-) anions and the existence of polarons and bipolarons in these doped polypyrrole chains were investigated by performing computational calculations based on density functional theory (DFT). Doping with these anions was found to decrease the band gap of the polypyrrole. Theoretical calculations revealed that changing the type of oxidative agent applied does not affect the conversion of polypyrrole into a conducting polymer, but the conductivity of the doped polypyrrole does depend on the ratio of oxidant to polypyrrole...
November 8, 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/29117944/small-molecule-sigma1-modulator-induces-autophagic-degradation-of-pd-l1
#12
Christina M Maher, Jeffrey D Thomas, Derick A Haas, Charles G Longen, Halley M Oyer, Jane Y Tong, Felix J Kim
Emerging evidence suggests that Sigma1 (SIGMAR1, also known as sigma-1 receptor) is a unique ligand-regulated integral membrane scaffolding protein that contributes to cellular protein and lipid homeostasis. Previously, we demonstrated that some small molecule modulators of Sigma1 alter endoplasmic reticulum (ER) associated protein homeostasis pathways in cancer cells, including the unfolded protein response and autophagy. Programmed death-ligand 1 (PD-L1) is a type 1 integral membrane glycoprotein that is co-translationally inserted into the ER and is processed and transported through the secretory pathway...
November 8, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29115927/transcriptomic-responses-to-wounding-meta-analysis-of-gene-expression-microarray-data
#13
Piotr Andrzej Sass, Michał Dąbrowski, Agata Charzyńska, Paweł Sachadyn
BACKGROUND: A vast amount of microarray data on transcriptomic response to injury has been collected so far. We designed the analysis in order to identify the genes displaying significant changes in expression after wounding in different organisms and tissues. This meta-analysis is the first study to compare gene expression profiles in response to wounding in as different tissues as heart, liver, skin, bones, and spinal cord, and species, including rat, mouse and human. RESULTS: We collected available microarray transcriptomic profiles obtained from different tissue injury experiments and selected the genes showing a minimum twofold change in expression in response to wounding in prevailing number of experiments for each of five wound healing stages we distinguished: haemostasis & early inflammation, inflammation, early repair, late repair and remodelling...
November 7, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29115388/antinociceptive-effect-of-valeriana-fauriei-regulates-bdnf-signaling-in-an-animal-model-of-fibromyalgia
#14
Hwayoung Lee, Jiyun Im, Hansol Won, Jun Young Kim, Hyung-Ki Kim, Jun-Tack Kwon, Young Ock Kim, Sanghyun Lee, Ik-Hyun Cho, Sang Won Lee, Hak-Jae Kim
The genus Valeriana has been widely used in popular medicine for centuries, to treat sleep disorders, anxiety, epilepsy and insomnia. Recent studies have focused on the novel pharmacological effects of Valeriana fauriei Briq. (VF) species. Previous studies have attempted to determine the pharmacological functions of Valeriana in various human diseases, particularly with regards to its neuroprotective effects, and its ability to reduce pain and stress. The present study constructed an animal model of fibromyalgia (FM), which was induced by intermittent cold stress with slight modification...
October 20, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29113730/conversion-to-resection-in-patients-receiving-systemic-chemotherapy-for-unresectable-and-or-metastatic-colorectal-cancer-predictive-factors-and-prognosis
#15
Hiroaki Nozawa, Soichiro Ishihara, Kazushige Kawai, Keisuke Hata, Tomomichi Kiyomatsu, Toshiaki Tanaka, Takeshi Nishikawa, Kensuke Otani, Koji Yasuda, Kazuhito Sasaki, Manabu Kaneko, Koji Murono
BACKGROUND: Systemic chemotherapy increases the possibility of resection in patients with initially unresectable colorectal cancer (CRC), especially patients with hepatic metastasis. However, the predictive factors and prognosis of conversion to resection after chemotherapy in patients with various organ metastases remain largely unknown. PATIENTS AND METHODS: We reviewed the data from metastatic CRC (mCRC) patients who had received oxaliplatin- or irinotecan-based systemic chemotherapy from 2005 to 2016...
October 19, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/29110342/production-of-r-1-1-3-benzodioxol-5-yl-ethanol-in-high-enantiomeric-purity-by-lactobacillus-paracasei-bd101
#16
Engin Şahin
Piperonyl ring is found in a number of naturally occurring compounds and possesses enormous biological activities. There are many studies in the literature with compounds containing a piperonyl ring, but there are very few studies on the synthesis of chiral piperonyl carbinol. The objective of this study was to determine the microbial reduction ability of bacterial strains and to reveal the effects of different physicochemical parameters on this reduction ability. A total of 15 bacterial isolates were screened for their ability to reduce 1-(benzo[d][1,3]dioxol-5-yl) ethanone 1 to its corresponding alcohol...
November 7, 2017: Chirality
https://www.readbyqxmd.com/read/29110139/the-place-of-antipsychotics-in-the-therapy-of-anxiety-disorders-and-obsessive-compulsive-disorders
#17
REVIEW
Baptiste Pignon, Chloé Tezenas du Montcel, Louise Carton, Antoine Pelissolo
PURPOSE OF REVIEW: The purpose of this review was to assess and present the findings up to this date on the efficacy of antipsychotics in the treatment of generalized anxiety disorders (GAD), social anxiety disorders (SAD), panic disorders (PD), and obsessive-compulsive disorders (OCD), mostly based on published randomized controlled trials (RCTs) or on open-label studies when RCT were lacking. RECENT FINDINGS: Quetiapine could be recommended in patients with GAD...
November 7, 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/29109793/acute-inflammatory-response-following-increased-blood-brain-barrier-permeability-induced-by-focused-ultrasound-is-dependent-on-microbubble-dose
#18
Dallan McMahon, Kullervo Hynynen
Rationale: Focused ultrasound (FUS), in conjunction with circulating microbubbles (MBs), can be used to transiently increase the permeability of the blood-brain barrier (BBB) in a targeted manner, allowing therapeutic agents to enter the brain from systemic circulation. While promising preclinical work has paved the way for the initiation of 3 human trials, there remains concern regarding neuroinflammation following treatment. The aim of this study was to assess the magnitude of this response following sonication and explore the influence of MB dose...
2017: Theranostics
https://www.readbyqxmd.com/read/29108245/reversion-of-epithelial-mesenchymal-transition-by-a-novel-agent-dz-50-via-igf-binding-protein-3-in-prostate-cancer-cells
#19
Zheng Cao, Shahriar Koochekpour, Stephen E Strup, Natasha Kyprianou
Dysregulation of transforming growth factor-β1 (TGF-β1) and insulin-like growth factor (IGF) axis has been linked to reactive stroma dynamics in prostate cancer progression. IGF binding protein-3 (IGFBP3) induction is initiated by stroma remodeling and could represent a potential therapeutic target for prostate cancer. In previous studies a lead quinazoline-based Doxazosin® derivative, DZ-50, impaired prostate tumor growth by targeting proteins involved in focal adhesion, anoikis resistance and epithelial-mesenchymal-transition (EMT)...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29106770/probing-the-cardiac-malate-aspartate-shuttle-non-invasively-using-hyperpolarized-1-2-13-c2-pyruvate
#20
Albert P Chen, Angus Z Lau, Yi-Ping Gu, Marie A Schroeder, Jennifer Barry, Charles H Cunningham
Previous studies have demonstrated that using hyperpolarized [2-(13) C]pyruvate as a contrast agent can reveal (13) C signals from metabolites associated with the tricarboxylic acid (TCA) cycle. However, the metabolites detectable from TCA cycle-mediated oxidation of [2-(13) C]pyruvate are the result of several metabolic steps. In the instance of the [5-(13) C]glutamate signal, the amplitude can be modulated by changes to the rates of pyruvate dehydrogenase (PDH) flux, TCA cycle flux and metabolite pool size...
November 6, 2017: NMR in Biomedicine
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