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https://www.readbyqxmd.com/read/28928801/ginsenoside-rb1-inhibits-hypoxia-induced-epithelial-mesenchymal-transition-in-ovarian-cancer-cells-by-regulating-microrna-25
#1
Dan Liu, Ting Liu, Yue Teng, Wei Chen, Le Zhao, Xu Li
Metastasis frequently occurs in advanced ovarian cancer, which not only leads to substantial mortality but also becomes a major challenge to effective treatment. Epithelial-mesenchymal transition (EMT) is a key mechanism facilitating cancer metastasis. Targeting the EMT process with more efficacious and less toxic agents to prevent metastasis is of significant therapeutic value for ovarian cancer treatment. The anti-EMT function and mechanism of ginsenoside Rb1, a monomer composition extracted from the traditional Chinese herb Panax ginseng or P...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28928281/engrailed-acts-with-nejire-to-control-decapentaplegic-expression-in-the-drosophila-ovarian-stem-cell-niche
#2
Lichao Luo, Chia Keng Siah, Yu Cai
Homeostasis of adult tissues is maintained by a small number of stem cells, which are sustained by their niches. In the Drosophila female germline stem cell (GSC) niche, Decapentaplegic (Dpp) is the primary factor that promotes GSC self-renewal. However, the mechanism regulating dpp expression in the niche is largely unknown. Here, we identify a 2.0 kb fragment located in a 5' cis-regulatory region of the dpp locus containing enhancer activity that drives its expression in the niche. This region is distinct from a previously characterized 3' cis-regulatory enhancer responsible for dpp expression in imaginal discs...
September 15, 2017: Development
https://www.readbyqxmd.com/read/28924197/how-do-the-hierarchical-levels-of-premises-affect-category-based-induction-diverging-effects-from-the-p300-and-n400
#3
Yi Lei, Xiuling Liang, Chongde Lin
Although a number of studies have explored the time course of category-based induction, little is known about how the hierarchical levels (superordinate, basic, subordinate) of premises affect category-based induction. The EEG data were recorded when nineteen healthy human participants were performing a simplified category-based induction task. The ERP results showed that: in the subordinate conclusion condition, the basic premise elicited a larger N400, versus the superordinate promise; in the basic conclusion condition, the superordinate promise elicited a larger P300 relative to both the basic premise and subordinate premise; in the superordinate conclusion condition, however, no difference was found between different promise...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28916833/inhibition-of-wnt-%C3%AE-catenin-pathway-and-histone-acetyltransferase-activity-by-rimonabant-a-therapeutic-target-for-colon-cancer
#4
Maria Chiara Proto, Donatella Fiore, Chiara Piscopo, Silvia Franceschelli, Valentina Bizzarro, Chiara Laezza, Gianluigi Lauro, Alessandra Feoli, Alessandra Tosco, Giuseppe Bifulco, Gianluca Sbardella, Maurizio Bifulco, Patrizia Gazzerro
In a high percentage (≥85%) of both sporadic and familial adenomatous polyposis forms of colorectal cancer (CRC), the inactivation of the APC tumor suppressor gene initiates tumor formation and modulates the Wnt/β-Catenin transduction pathways involved in the control of cell proliferation, adhesion and metastasis. Increasing evidence showed that the endocannabinoids control tumor growth and progression, both in vitro and in vivo. We evaluated the effect of Rimonabant, a Cannabinoid Receptor 1 (CB1) inverse agonist, on the Wnt/β-Catenin pathway in HCT116 and SW48 cell lines carrying the genetic profile of metastatic CRC poorly responsive to chemotherapies...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28914629/association-between-ambulatory-blood-pressure-values-and-central-aortic-pressure-in-a-large-population-of-normotensive-and-hypertensive-patients
#5
Ana Rouxinol-Dias, Sara Araújo, José A Silva, Loide Barbosa, Jorge Polónia
OBJECTIVE: Our aim was to examine the association of ambulatory blood pressure monitoring (ABPM) and central blood pressure (CBP) data in a large set of normotensive and hypertensive patients and its relation with pulse wave velocity (PWV). PATIENTS AND METHODS: This cross-sectional study was carried out in a single centre and included 2864 individuals who carried out an ABPM, measurement of CBP from the aortic waveform (SphygmoCor) and carotid-femoral PWV (Complior)...
September 13, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/28903900/genetics-association-study-and-functional-analysis-on-osteoporosis-susceptibility-gene-bdnf
#6
Man Yang, Bing-Jie Lu, Yuan-Yuan Duan, Xiao-Feng Chen, Jian-Gang Ma, Yan Guo
To explore the relationship between brain-derived neurotrophic factor (BDNF) gene and bone mineral density (BMD) in Chinese Han population, we performed association analysis of 14 tag SNPs on BDNF gene with hip/spine BMD in 1300 Han Chinese samples from Shaanxi Province. We found that 8 of the 14 SNPs were significantly associated with hip or spine BMD (P < 0.05). Moreover, the SNP rs16917237 was significantly associated with both hip and spine BMD, with significant Bonferroni correlation (P value 0.05/14 = 0...
August 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28900874/effect-of-renal-transplantation-on-cognitive-function-in-hemodialysis-patients-a-longitudinal-study
#7
Yogesh K Chhabra, Sanjay Sood, Omprakash Rathi, Sandeep Mahajan
BACKGROUND: The literature notes high prevalence of cognitive function (CF) impairment among hemodialysis patients. Renal transplantation by reversing metabolic factors should improve cognitive function; however, results in post-transplant patients are inconsistent. Lack of longitudinal studies, variable and small patient population, variable renal function and post-transplantation period and use of non-specific tests make results difficult to interpret. We looked at CF in stable hemodialysis patients just prior to live renal transplantation and approximately 3 months subsequently using well-validated electrophysiological study of P300 cognitive potential obtained by auditory oddball paradigm using multiple scalp electrodes...
September 12, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28899685/the-tumor-promoting-role-of-trip4-in-melanoma-progression-and-its-involvement-in-response-to-braf-targeted-therapy
#8
Jiaojiao Hao, Hua Xu, Meihua Luo, Wendan Yu, Miao Chen, Yina Liao, Changlin Zhang, Xinrui Zhao, Wei Jiang, Shuai Hou, Xu Feng, Kun Zou, Yiming Chen, Wenlin Huang, Wei Guo, Lan Kang, Wuguo Deng
Thyroid Hormone Receptor Interactor 4 (TRIP4) was identified with anti-proliferative effect in melanoma cells based on siRNA library screening, however, its precise function in melanoma progression is completely unknown. Here, we explored the carcinogenic role of TRIP4 in melanoma. The high expression of TRIP4 was observed in human melanoma cells and tissues. Its knockdown suppressed melanoma progression in vitro and in vivo, including melanoma cell proliferation, migration and invasion inhibition, and apoptosis induction...
September 9, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28898508/sirt1-mediate-hcv-core-protein-induces-hepatic-steatosis
#9
Chuanhai Zhang, Jingjing Wang, Hanlin Zhang, Shunai Liu, Hyuek Jong Lee, Wanzhu Jin, Jun Cheng
BACKGROUND & AIMS: Hepatic steatosis is a common feature of patients with chronic hepatitis C. Previous reports have shown that the overexpression of HCV core-encoding sequences (hepatitis C virus (HCV) genotypes 3a and 1b) significantly induces intra-cellular triglyceride accumulation. However, the underlying mechanism has not yet been revealed. METHODS: To investigate whether Sirt1 is involved in HCV-mediated hepatic steatosis, the overexpression of HCV core 1b protein and Sirt1 and the knockdown of Sirt1 in HepG2 cells were performed...
September 12, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28893800/vhl-deficiency-drives-enhancer-activation-of-oncogenes-in-clear-cell-renal-cell-carcinoma
#10
Xiaosai Yao, Jing Tan, Kevin Junliang Lim, Joanna Koh, Wen Fong Ooi, Zhimei Li, Dachuan Huang, Manjie Xing, Yang Sun Chan, James Zhengzhong Qu, Su Ting Tay, Giovani Wijaya, Yue Ning Lam, Jing Han Hong, Ai Ping Lee-Lim, Peiyong Guan, Michelle Shu Wen Ng, Cassandra Zhengxuan He, Joyce Suling Lin, Tannistha Nandi, Aditi Qamra, Chang Xu, Swe Swe Myint, James O J Davies, Jian Yuan Goh, Gary Loh, Bryan C Tan, Steven G Rozen, Qiang Yu, Iain Bee Huat Tan, Christopher Wai Sam Cheng, Shang Li, Kenneth Tou En Chang, Puay Hoon Tan, David Lawrence Silver, Alexander Lezhava, Gertrud Steger, Jim R Hughes, Bin Tean Teh, Patrick Tan
Protein-coding mutations in clear cell renal cell carcinoma (ccRCC) have been extensively characterized, frequently involving inactivation of the von Hippel Lindau (VHL) tumor suppressor. Roles for non-coding cis-regulatory aberrations in ccRCC tumorigenesis, however, remain unclear. Analyzing 10 primary tumor/normal pairs and 9 cell lines across 79 chromatin profiles, we observed pervasive enhancer malfunction in ccRCC, with cognate enhancer-target genes associated with tissue-specific aspects of malignancy...
September 11, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28893318/icg-001-suppresses-growth-of-gastric-cancer-cells-and-reduces-chemoresistance-of-cancer-stem-cell-like-population
#11
Yi Liu, Hui Chen, Peiming Zheng, Yingxia Zheng, Qin Luo, Guohua Xie, Yanhui Ma, Lisong Shen
BACKGROUND: ICG-001, a small molecule, binds CREB-binding protein (CBP) to disrupt its interaction with β-catenin and inhibits CBP function as a co-activator of Wnt/β-catenin-mediated transcription. Given its ability to inhibit Wnt/β-catenin signaling pathway, ICG-001 has been used in some tumor types to exert its anticarcinogenic effect. Here, we examined ICG-001 and its potential role as a therapeutic in gastric cancer (GC). METHODS: The gastric cancer cell lines SGC-7901, MGC-803, BGC-823 and MKN-45 were used in vitro and in vivo...
September 11, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28892380/gne-781-a-highly-advanced-potent-and-selective-bromodomain-inhibitor-of-cyclic-adenosine-monophosphate-response-element-binding-protein-binding-protein-cbp
#12
F Anthony Romero, Jeremy Murray, Kwong Wah Lai, Vickie Tsui, Brian K Albrecht, Le An, Maureen H Beresini, Gladys de Leon Boenig, Sarah M Bronner, Emily W Chan, Kevin X Chen, Zhongguo Chen, Edna F Choo, Kyle Clagg, Kevin Clark, Terry D Crawford, Patrick Cyr, Denise de Almeida Nagata, Karen E Gascoigne, Jane L Grogan, Georgia Hatzivassiliou, Wei Huang, Thomas L Hunsaker, Susan Kaufman, Stefan G Koenig, Ruina Li, Yingjie Li, Xiaorong Liang, Jiangpeng Liao, Wenfeng Liu, Justin Ly, Jonathan Maher, Colin Masui, Mark Merchant, Yingqing Ran, Alexander M Taylor, John Wai, Fei Wang, Xiaocang Wei, Dong Yu, Bing-Yan Zhu, Xiaoyu Zhu, Steven Magnuson
Inhibition of the bromodomain of the transcriptional regulator CBP/P300 is an especially interesting new therapeutic approach in oncology. We recently disclosed in vivo chemical tool 1 (GNE-272) for the bromodomain of CBP that was moderately potent and selective over BRD4(1). In pursuit of a more potent and selective CBP inhibitor, we used structure-based design. Constraining the aniline of 1 into a tetrahydroquinoline motif maintained potency and increased selectivity 2-fold. Structure-activity relationship studies coupled with further structure-based design targeting the LPF shelf, BC loop, and KAc regions allowed us to significantly increase potency and selectivity, resulting in the identification of non-CNS penetrant 19 (GNE-781, TR-FRET IC50 = 0...
September 21, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28891972/erratum-balconi-m-et-al-evidences-from-rewarding-system-frn-and-p300-effect-in-internet-addiction-in-young-people-short-title-rewarding-system-and-eeg-in-internet-addiction-brain-sciences-2017-7-81
#13
Michela Balconi, Irene Venturella, Roberta Finocchiaro
We would like to submit the following erratum to our recently published paper [1] due to the error in the title.[...].
September 11, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28891741/erna-binding-produces-tailored-cbp-activity-profiles-to-regulate-gene-expression
#14
Daniel A Bose, Shelley L Berger
Enhancers are cis- regulatory genetic elements crucial for controlling temporal and cell-type specific patterns of gene expression. Active enhancers generate bi-directional non-coding RNA transcripts called enhancer RNAs (eRNAs). eRNAs are important for stimulating gene expression, but precise mechanisms for this ability remain unclear. Here we highlight recent findings that demonstrate a direct interaction between RNAs and the transcriptional co-activator Creb-binding protein (CBP). Notably, RNA binding could stimulate the core histone acetyltransferase activity of the enzyme, observable in cells as a link between eRNA production, CBP-dependent histone acetylation and expression of genes regulated by specific enhancers...
September 11, 2017: RNA Biology
https://www.readbyqxmd.com/read/28891514/cognitive-responses-and-cortical-oscillatory-processing-at-various-stereoscopic-depths%C3%A2-a%C3%A2-simultaneous-eeg-meg-study
#15
Hohyun Cho, Min-Koo Kang, Sangtae Ahn, Moonyoung Kwon, Kuk-Jin Yoon, Kiwoong Kim, Sung Chan Jun
Due to the recent explosion in various forms of 3D content, the evaluation of such content from a neuroscience perspective is quite interesting. However, existing investigations of cortical oscillatory responses in stereoscopic depth perception are quite rare. Therefore, we investigated spatiotemporal and spatio-temporo-spectral features at four different stereoscopic depths within the comfort zone. We adopted a simultaneous EEG/MEG acquisition technique to collect the oscillatory responses of eight participants...
2017: Journal of Integrative Neuroscience
https://www.readbyqxmd.com/read/28889995/aging-and-working-memory-performance-electrophysiological-correlates-of-high-and-low-performing-elderly
#16
Alexander F Lubitz, Michael Niedeggen, Maximilian Feser
In this study we investigated age-related changes in WM capacity and their respective ERP correlates. We explicitly addressed the differentiation between high and low performing elderly to identify electrophysiological correlates of successful aging. Therefore, ERP and behavioral data was obtained from 45 young (mean = 22.73 years) and 35 older participants (mean = 68.49 years). Both groups performed a visual-spatial n-back task with two levels of difficulty. Additionally, related neuropsychological tests were administered...
September 7, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28887694/contribution-of-auditory-p300-test-to-the-diagnosis-of-mild-cognitive-impairment-in-parkinson-s-disease
#17
Fikriye Tüter Yilmaz, Sehür Siber Özkaynak, Ebru Barçin
Abnormalities in auditory P300 test have been observed in patients with Parkinson's disease (PD). We aimed to investigate whether or not additional electrophysiological tests assist in making the clinical diagnosis of mild cognitive impairment in Parkinson's disease (PD-MCI), and we evaluated P300 changes in patients with non-demented PD and analyzed the correlation between the cognitive features and P300 changes. Twenty patients with PD who had been diagnosed with mild cognitive impairment (PD-MCI group) according to the Movement Disorder Society (MDS) 2012 PD-MCI level II criteria, 21 patients with PD without cognitive impairment (PD-Normal group), and 20 control subjects (control group) who were neurologically normal were examined by the standard auditory oddball paradigm...
September 8, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28887413/dynamic-assembly-and-activation-of-estrogen-receptor-%C3%AE-enhancers-through-coregulator-switching
#18
Shino Murakami, Anusha Nagari, W Lee Kraus
Although many features of active transcriptional enhancers have been defined by genomic assays, we lack a clear understanding of the order of events leading to enhancer formation and activation as well as the dynamics of coregulator interactions within the enhancer complex. Here, we used selective loss- or gain-of-function mutants of estrogen receptor α (ERα) to define two distinct phases of ligand-dependent enhancer formation. In the first phase (0-20 min), p300 is recruited to ERα by Mediator as well as p300's acetylhistone-binding bromodomain to promote initial enhancer formation, which is not competent for sustained activation...
September 8, 2017: Genes & Development
https://www.readbyqxmd.com/read/28886276/systems-approach-to-the-pharmacological-actions-of-hdac-inhibitors-reveals-ep300-activities-and-convergent-mechanisms-of-regulation-in-diabetes
#19
Haloom Rafehi, Antony Kaspi, Mark Ziemann, Jun Okabe, Tom C Karagiannis, Assam El-Osta
Given the skyrocketing costs to develop new drugs, repositioning of approved drugs, such as histone deacetylase (HDAC) inhibitors, may be a promising strategy to develop novel therapies. However, a gap exists in the understanding and advancement of these agents to meaningful translation for which new indications may emerge. To address this, we performed systems-level analyses of 33 independent HDAC inhibitor microarray studies. Based on network analysis, we identified enrichment for pathways implicated in metabolic syndrome and diabetes (insulin receptor signaling, lipid metabolism, immunity and trafficking)...
September 8, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/28885359/sustained-dysfunctional-information-processing-in-patients-with-internet-gaming-disorder-6-month-follow-up-erp-study
#20
Minkyung Park, Yeon Jin Kim, Dai Jin Kim, Jung-Seok Choi
Internet gaming disorder (IGD), defined as an inability to control Internet-based game play, leads to serious impairment in psychological and social functioning, but few studies have identified the neurophysiological characteristics of patients with IGD. The aim of this study was to determine neurophysiological markers of P300 components associated with changes in symptoms after outpatient management with pharmacotherapy in patients with IGD. The present prospective longitudinal study included 18 patients with IGD and 29 healthy controls...
September 2017: Medicine (Baltimore)
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