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https://www.readbyqxmd.com/read/29168516/computational-screening-of-functional-groups-for-capture-of-toxic-industrial-chemicals-in-porous-materials
#1
Ki Chul Kim, David Fairen-Jimenez, Randall Q Snurr
A thermodynamic analysis using quantum chemical methods was carried out to identify optimal functional group candidates that can be included in metal-organic frameworks and activated carbons for the selective capture of toxic industrial chemicals (TICs) in humid air. We calculated the binding energies of 14 critical TICs plus water with a series of 10 functional groups attached to a naphthalene ring model. Using vibrational calculations, the free energies of adsorption were calculated in addition to the binding energies...
November 23, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29158883/the-role-of-protein-kinase-b-signaling-pathway-in-anti-cancer-effect-of-rolipram-on-glioblastoma-multiforme-an-in-vitro-study
#2
Sara Ramezani, Mahmoudreza Hadjighassem, Nasim Vousooghi, Mansour Parvaresh, Farshid Arbabi, Naser Amini, Mohammad Taghi Joghataei
Introduction: The mechanism of putative cytotoxicity of 4-[3-(cyclopentyloxy)-4-methoxyphenyl]-2-pyrrolidone (rolipram), a specific phosphodiesterase-4 (PDE4) inhibitor, on glioblastoma multiforme (GBM) is almost unknown. This study aimed to investigate the role of protein kinase B (Akt) pathway in the cytotoxic effect of rolipram on human GBM U87 MG cell line and Tumor-Initiating Cells (TICs) isolated from patient's GBM specimen. Methods: TICs were characterized by using flow cytometry and quantitative real-time PCR...
July 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/29158396/emt-programs-promote-basal-mammary-stem-cell-and-tumor-initiating-cell-stemness-by-inducing-primary-ciliogenesis-and-hedgehog-signaling
#3
Vincent J Guen, Tony E Chavarria, Cornelia Kröger, Xin Ye, Robert A Weinberg, Jacqueline A Lees
Tissue regeneration relies on adult stem cells (SCs) that possess the ability to self-renew and produce differentiating progeny. In an analogous manner, the development of certain carcinomas depends on a small subset of tumor cells, called "tumor-initiating cells" (TICs), with SC-like properties. Mammary SCs (MaSCs) reside in the basal compartment of the mammary epithelium, and their neoplastic counterparts, mammary TICs (MaTICs), are thought to serve as the TICs for the claudin-low subtype of breast cancer...
November 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29158328/prolines-in-transit-peptides-are-crucial-for-efficient-preprotein-translocation-into-chloroplasts
#4
Dong Wook Lee, Yun-Joo Yoo, Md Abdur Razzak, Inhwan Hwang
Chloroplasts import many preproteins that can be classified based on their physicochemical properties. The cleavable N-terminal transit peptide (TP) of chloroplast preproteins contains all of the information required for import into chloroplasts through Toc/Tic translocons. The question of whether and how the physicochemical properties of preproteins affect TP-mediated import into chloroplasts has not been elucidated. Here, we present evidence that proline residues in TP mediate efficient translocation through the chloroplast envelope membranes for proteins containing transmembrane domains (TMDs) or proteins prone to aggregation...
November 20, 2017: Plant Physiology
https://www.readbyqxmd.com/read/29157241/organizational-and-provider-level-factors-in-implementation-of-trauma-informed-care-after-a-city-wide-training-an-explanatory-mixed-methods-assessment
#5
April Joy Damian, Joseph Gallo, Philip Leaf, Tamar Mendelson
BACKGROUND: While there is increasing support for training youth-serving providers in trauma-informed care (TIC) as a means of addressing high prevalence of U.S. childhood trauma, we know little about the effects of TIC training on organizational culture and providers' professional quality of life. This mixed-methods study evaluated changes in organizational- and provider-level factors following participation in a citywide TIC training. METHODS: Government workers and nonprofit professionals (N = 90) who participated in a nine-month citywide TIC training completed a survey before and after the training to assess organizational culture and professional quality of life...
November 21, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/29155875/effect-of-long-term-irrigation-patterns-on-phosphorus-forms-and-distribution-in-the-brown-soil-zone
#6
Chang Liu, Xiuli Dang, Melanie A Mayes, Leilei Chen, Yulong Zhang
Continuous application of P fertilizers under different irrigation patterns can change soil phosphorus (P) chemical behavior and increase soil P levels that are of environmental concern. To assess the effect of long-term different irrigation patterns on soil P fractions and availability, this study examined sequential changes in soil organic P and inorganic P from furrow irrigation (FI), surface drip irrigation (SUR), and subsurface drip irrigation (SDI) in the brown soil zone (0-60 cm) during 1998 to 2011...
2017: PloS One
https://www.readbyqxmd.com/read/29154107/aripiprazole-in-treatment-of-gilles-de-la-tourette-syndrome-new-therapeutic-option
#7
REVIEW
Piotr Janik, Natalia Szejko
Aripiprazole is a dopamine D2- and serotonin 5-hydroxytryptamine (5-HT)1A receptor partial agonist and 5-HT2A receptor antagonist primarily used for the treatment of schizophrenia, bipolar disorder or depression with psychotic ideation. However, recently a number of new possible indications have been suggested, among them Gilles de la Tourette syndrome (GTS). In two randomized, double-blind, placebo-controlled studies in children and adolescents with GTS has been confirmed the efficacy of aripiprazole in tic reduction...
November 9, 2017: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/29153958/major-and-minor-life-events-personality-and-psychopathology-in-children-with-tourette-syndrome
#8
Netta Horesh, Sharona Shmuel-Baruch, Dan Farbstein, Daphna Ruhrman, Noa Ben Aroya Milshtein, Silvana Fennig, Alan Apter, Tamar Steinberg
Environmental, psychological, and biological interactions underlie many psychopathologies. Tourette's Syndrome (TS) has an obvious biological substrate but environmental factors and personality play substantial roles in its expression. We aimed to study the interrelationships between stressful life events, personality traits, tics, and comorbid disorders in children with TS. To this end, 132 children with TS and 49 healthy controls were recruited for the study. Major life events in the 12-months prior to testing and minor life events in the month prior to testing were retrospectively assessed using the Life Experiences Survey (LES) and the Brief Adolescent Life Events Scale (BALES), respectively...
November 8, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29152108/microrna-31-suppresses-the-self-renewal-capability-of-%C3%AE-2%C3%AE-1-liver-tumor-initiating-cells-by-targeting-isl1
#9
Yuan Zhang, Wei Zhao, Haibo Han, Sheng Li, Dongji Chen, Zhiqian Zhang
Accumulating evidence demonstrates that miRNAs, a class of small non-coding RNAs, are involved in the regulation of tumor-initiating cells (TICs) which are considered to be the origin of cancer development according to the cancer stem cell hypothesis. We have previously identified that miR-31 may play suppressive roles in α2δ1(+) hepatocellular carcinoma (HCC) TICs. Here, we confirm that the expression of miR-31 is significantly downregulated in α2δ1(+) HCC TICs. Overexpression of miR-31 in α2δ1(+) HCC TICs results in significant suppression of the self-renewal and tumorigenicity abilities of these cells...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151096/jumping-frenchmen-miryachit-and-latah-culture-specific-hyperstartle-plus-syndromes
#10
Douglas J Lanska
In the late 19th century, jumping (French Canadians in Maine, USA), miryachit (Siberia), and latah (Southeast Asia) were among a group of similar disorders described around the world, each of which manifests as an exaggerated startle response with additional late-response features that were felt by some to overlap with hysteria or tics. The later features following the exaggerated startle reaction variably include mimesis (e.g., echopraxia, echolalia) and automatic obedience. These reaction patterns tended to persist indefinitely in affected individuals...
2018: Frontiers of Neurology and Neuroscience
https://www.readbyqxmd.com/read/29149614/risky-business-the-circuits-that-impact-stress-induced-decision-making
#11
Amy F T Arnsten, Daeyeol Lee, Christopher Pittenger
How does stress promote risky decision-making? Friedman et al. find that stress disrupts inhibition of striatal circuits by prefrontal cortex, rendering animals insensitive to potential losses. This may help explain how stress contributes to substance abuse and how it can disinhibit automatic behaviors, such as tics in Tourette syndrome.
November 16, 2017: Cell
https://www.readbyqxmd.com/read/29144570/lncapc-drives-wnt-%C3%AE-catenin-activation-and-liver-tic-self-renewal-through-ezh2-mediated-apc-transcriptional-inhibition
#12
Xiaomin Fu, Jizhen Lin, Fujun Qin, Zihe Yang, Yuechao Ding, Yong Zhang, Lu Han, Xiaoyan Zhu, Qinxian Zhang
Liver tumor initiating cells (TICs), a small subset cells in tumor bulk, are responsible for liver tumor initiation, metastasis and relapse. However, the regulatory mechanism of liver TICs remains largely unknown. Here we found a long noncoding RNA lncAPC, locating near from APC locus, was highly expressed in liver cancer and liver TICs. LncAPC was required for liver TIC self-renewal. Silencing and overexpressing lncAPC showed impaired and enhanced sphere formation capacity of liver TICs, respectively. By recruiting EZH2 to APC promoter, LncAPC inhibits APC transcription and thus drives the activation of Wnt/β-catenin signaling...
November 16, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29138385/parameters-for-contrast-enhanced-ultrasound-ceus-of-enlarged-superficial-lymph-nodes-for-the-evaluation-of-therapeutic-response-in-lymphoma-a-preliminary-study
#13
Lei Xin, Zhimei Yan, Xiaojuan Zhang, Yichen Zang, Zhaoyan Ding, Hongwei Xue, Cheng Zhao
BACKGROUND The aims of this preliminary study were to evaluate contrast-enhanced ultrasound (CEUS) imaging and the therapeutic response of enlarged superficial lymph nodes in patients with lymphoma before and after chemotherapy and to determine the most useful CEUS response parameters. MATERIAL AND METHODS Forty-three patients with lymphoma, with 43 enlarged superficial lymph nodes, underwent CEUS and conventional ultrasound (US), before treatment and after the first three cycles of chemotherapy. Clinical responses included overall response (OR) and no response (NR)...
November 15, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29137367/glycolytic-reprogramming-through-pck2-regulates-tumor-initiation-of-prostate-cancer-cells
#14
Jiangsha Zhao, Jieran Li, Teresa W M Fan, Steven X Hou
Tumor-initiating cells (TICs) play important roles in tumor progression and metastasis. Identifying the factors regulating TICs may open new avenues in cancer therapy. Here, we show that TIC-enriched prostate cancer cell clones use more glucose and secrete more lactate than TIC-low clones. We determined that elevated levels of phosphoenolpyruvate carboxykinase isoform 2 (PCK2) are critical for the metabolic switch and the maintenance of TICs in prostate cancer. Information from prostate cancer patient databases revealed that higher PCK2 levels correlated with more aggressive tumors and lower survival rates...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29133949/a-total-population-multigenerational-family-clustering-study-of-autoimmune-diseases-in-obsessive-compulsive-disorder-and-tourette-s-chronic-tic-disorders
#15
D Mataix-Cols, E Frans, A Pérez-Vigil, R Kuja-Halkola, C Gromark, K Isomura, L Fernández de la Cruz, E Serlachius, J F Leckman, J J Crowley, C Rück, C Almqvist, P Lichtenstein, H Larsson
The association between obsessive-compulsive disorder (OCD) and Tourette's/chronic tic disorders (TD/CTD) with autoimmune diseases (ADs) is uncertain. In this nationwide study, we sought to clarify the patterns of comorbidity and familial clustering of a broad range of ADs in individuals with OCD, individuals with TD/CTD and their biological relatives. From a birth cohort of 7 465 455 individuals born in Sweden between 1940 and 2007, we identified 30 082 OCD and 7279 TD/CTD cases in the National Patient Register and followed them up to 31 December 2013...
November 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29132463/-serum-levels-of-25-hydroxyvitamin-d-in-children-with-tic-disorders
#16
Hong-Hua Li, Bing Wang, Ling Shan, Cheng-Xin Wang, Fei-Yong Jia
OBJECTIVE: To examine serum 25-hydroxyvitamin D levels in children with tic disorders (TD) and to explore the relationship between vitamin D level and TD. METHODS: One hundred and thirty-two children who were diagnosed with TD between November 2016 and May 2017 were enrolled as the TD group, including 8 cases of Tourette syndrome, 32 cases of chronic TD, and 92 cases of transient TD. One hundred and forty-four healthy children served as the control group. Peripheral venous blood samples were collected from each child...
November 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29126395/contrast-enhanced-ultrasound-of-small-cell-carcinoma-in-urinary-bladder-a-case-report-and-review-of-literature
#17
Meixiang Zhang, Chengcheng Niu, Ming Zhang, Qinghai Peng, Minzhi Ouyang
BACKGROUND: Small cell carcinoma of the urinary bladder (SCCB) is a relatively rare malignant bladder tumor, and few reports have investigated the microvasculature of SCCB imaged using contrast-enhanced ultrasound (CEUS). CASE PRESENTATION: A 63-year-old female was admitted to our hospital after experiencing painless gross hematuria for one week. The gray-scale ultrasound (US) demonstrated a 4.8 × 3.4 × 3.6-cm(3) hypoechoic mass in the apex of the urinary bladder with a wide base and an irregular surface; the mass did not move with changes in body position...
November 10, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29126190/early-life-exposure-to-china-s-1959-61-famine-and-midlife-cognition
#18
Hongwei Xu, Zhenmei Zhang, Lydia Li, Jinyu Liu
Background: Existing studies of the 1944-45 Dutch famine found little evidence of the association between early life malnutrition and midlife cognition. Methods: Among 2446 rural participants born between 1958 and 1963 in the China Health and Retirement Longitudinal Study, we examined effects of exposure to China's 1959-61 Great Leap Forward famine during prenatal and early postnatal life, on four cognitive measures in 2011 (baseline) and changes in cognition between 2011 and 2013 (first follow-up)...
November 7, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29121979/platelet-inhibition-during-ticagrelor-monotherapy-versus-ticagrelor-plus-aspirin-in-patients-with-coronary-artery-disease-template-study-study-protocol-for-a-randomised-controlled-trial
#19
Sarah Baos, Wendy Underwood, Lucy Culliford, Barnaby C Reeves, Chris A Rogers, Ruth Bowles, Tom Johnson, Andreas Baumbach, Andrew Mumford
BACKGROUND: Dual antiplatelet therapy (DAPT) with aspirin (ASP) and a P2Y12 blocker is currently standard care after percutaneous coronary intervention (PCI) with stent insertion, and aims to inhibit platelet function in order to prevent stent thrombosis. The P2Y12 blocker ticagrelor (TIC) has greater antiplatelet effect than the previously used members of this class, such as clopidogrel. In healthy volunteers, TIC is sufficient to cause strong platelet inhibition, with little additional effect from ASP...
November 9, 2017: Trials
https://www.readbyqxmd.com/read/29120870/density-functional-study-of-carbon-vacancies-in-titanium-carbide
#20
Mikael Råsander, Håkan Hugosson, Anna Delin
It is well established that TiC contains carbon vacancies not only in carbon-deficient environments but also in carbon-rich environments. We have performed density functional calculations of the vacancy formation energy in TiC for C- as well as Ti-rich conditions using several different approximations to the exchange-correlation functional, and also carefully considering the nature and thermodynamics of the carbon reference state, as well as the effect of varying growth conditions. We find that the formation of carbon vacancies is clearly favorable under Ti-rich conditions, whereas it is slightly energetically unfavorable under C-rich conditions...
November 9, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
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