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https://www.readbyqxmd.com/read/28444663/transcriptional-coactivator-p300-and-silent-information-regulator-1-sirt1-gene-polymorphism-associated-with-diabetic-kidney-disease-in-a-chinese-cohort
#1
Kang Tang, Mingfang Sun, Jing Shen, Bo Zhou
One of the most serious complications of diabetes mellitus, which could lead to end-stage renal disease across all demographics, is 'diabetic kidney disease'. However, how diabetic kidney disease develops remains unclear. Studies conducted thus far suggest that a major factor in the origination and development of the disease occurs through histone acetylation modifications. This study aims to examine the probable relationship in Chinese patients suffering from type 2 diabetes. A case-control study was conducted in the Chongqing region of China on the Chinese Han population...
April 25, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28442993/alcohol-induced-neuroadaptation-is-orchestrated-by-the-histone-acetyltransferase-cbp
#2
Alfredo Ghezzi, Xiaolei Li, Linda K Lew, Thilini P Wijesekera, Nigel S Atkinson
Homeostatic neural adaptations to alcohol underlie the production of alcohol tolerance and the associated symptoms of withdrawal. These adaptations have been shown to persist for relatively long periods of time and are believed to be of central importance in promoting the addictive state. In Drosophila, a single exposure to alcohol results in long-lasting alcohol tolerance and symptoms of withdrawal following alcohol clearance. These persistent adaptations involve mechanisms such as long-lasting changes in gene expression and perhaps epigenetic restructuring of chromosomal regions...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28442062/retinoic-acid-triggers-c-kit-gene-expression-in-spermatogonial-stem-cells-through-an-enhanceosome-constituted-between-transcription-factor-binding-sites-for-retinoic-acid-response-element-rare-spleen-focus-forming-virus-proviral-integration-oncogene-spfi1-pu
#3
Swanand Koli, Ayan Mukherjee, Kudumula Venkata Rami Reddy
Restricted availability of retinoic acid (RA) in the testicular milieu regulates transcriptional activity of c-kit (KIT, CD117), which aids in the determination of spermatogonial stem-cell differentiation. The effect of RA on c-kit has been reported previously, but its mode of genomic action remains unresolved. We studied the molecular machinery guiding RA responsiveness to the c-kit gene using spermatogonial stem-cell line C18-4 and primary spermatogonial cells. A novel retinoic acid response element (RARE) positioned at -989 nucleotides upstream of the transcription start site (TSS) was identified, providing a binding site for a dimeric RA receptor (i...
March 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28438529/an-erp-investigation-of-vertical-reading-fluency-in-scrabble-%C3%A2-experts
#4
Sophia van Hees, Sabine Seyffarth, Penny M Pexman, Filomeno Cortese, Andrea B Protzner
Previous studies have found that competitive Scrabble expertise is associated with enhanced performance on visual lexical decision tasks (LDT), particularly for vertically presented stimuli. In the current study, we investigated the underlying mechanisms responsible for this vertical fluency. We examined behaviour and neural activity during LDT in 19 competitive Scrabble players and 18 matched controls. Using event related potentials (ERP), we investigated whether Scrabble expertise modulates the N170, P300, and late positive component (LPC), associated with visual-orthographic processing, working memory, and stimulus classification, respectively...
April 21, 2017: Brain Research
https://www.readbyqxmd.com/read/28431949/classification-of-eeg-signals-to-identify-variations-in-attention-during-motor-task-execution
#5
Susan Aliakbaryhosseinabadi, Ernest Nlandu Kamavuako, Ning Jiang, Dario Farina, Natalie Mrachacz-Kersting
BACKGROUND: Brain-computer interface (BCI) systems in neuro-rehabilitation use brain signals to control external devices. User status such as attention affects BCI performance; thus detecting the user's attention drift due to internal or external factors is essential for high detection accuracy. NEW METHOD: An auditory oddball task was applied to divert the users' attention during a simple ankle dorsiflexion movement. Electroencephalogram signals were recorded from eighteen channels...
April 18, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28428115/p300-and-c-ebp%C3%AE-regulated-ikk%C3%AE-expression-are-involved-in-thrombin-induced-il-8-cxcl8-expression-in-human-lung-epithelial-cells
#6
Zheng-Wei Huang, Gi-Shih Lien, Chien-Huang Lin, Chun-Ping Jiang, Bing-Chang Chen
Asthma and chronic obstructive pulmonary disease (COPD) are common chronic lung inflammatory diseases. Thrombin and interleukin (IL)-8/C-X-C chemokine ligand 8 (CXCL8) play critical roles in lung inflammation. Our previous study showed that c-Src-dependent IκB kinase (IKK)/IκBα/nuclear factor (NF)-κB and mitogen-activated protein kinase kinase kinase 1 (MEKK1)/extracellular signal-regulated kinase (ERK)/ribosomal S6 protein kinase (RSK)-dependent CAAT/enhancer-binding protein β (C/EBPβ) activation are involved in thrombin-induced IL-8/CXCL8 expression in human lung epithelial cells...
April 17, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28426192/profiling-cellular-substrates-of-lysine-acetyltransferases-gcn5-and-p300-with-orthogonal-labeling-and-click-chemistry
#7
Zhen Han, Chau-Wen Chou, Xiangkun Yang, Michael G Bartlett, Y George Zheng
p300 and GCN5 are two representative histone/lysine acetyltransferase (HAT/KAT) enzymes in mammalian cells. It was recently reported that they possess multiple acyltransferase activities including acetylation, propionylation, and butyrylation of the -amino group of lysine residues of histones and non-histone protein substrates. Although thousands of acetylated substrates and acetylation sites have been identified by mass spectrometry-based proteomic screening, our knowledge about protein acylation, especially the causative connection between individual KAT members and their substrates remain limited...
April 20, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28426098/targeting-chromatin-defects-in-selected-solid-tumors-based-on-oncogene-addiction-synthetic-lethality-and-epigenetic-antagonism
#8
D Morel, G Almouzni, J-C Soria, S Postel-Vinay
Background: Although the role of epigenetic abnormalities has been studied for several years in cancer genesis and development, epigenetic-targeting drugs have historically failed to demonstrate efficacy in solid malignancies. However, successful targeting of chromatin remodeling deficiencies, histone writers and histone reader alterations has been achieved very recently using biomarker-driven and mechanism-based approaches. Epigenetic targeting is now one of the most active areas in drug development and could represent novel therapeutic opportunity for up to 25% of all solid tumors...
February 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28425985/the-cellular-senescence-of-leukemia-initiating-cells-from-acute-lymphoblastic-leukemia-is-postponed-by-%C3%AE-arrestin1-binding-with-p300-sp1-to-regulate-htert-transcription
#9
Shan Liu, Haiyan Liu, Ru Qin, Yi Shu, Zhidai Liu, Penghui Zhang, Caiwen Duan, Dengli Hong, Jie Yu, Lin Zou
Although we previously reported that the self-renewal of leukemia-initiating cells of B-lineage acute lymphoblastic leukemia (B-ALL LICs) was regulated by β-Arrestin1, a multiple-function protein, the cellular senescence is critical for LICs fate and leukemia progress, and worthy for further investigation. Here we found that depletion of β-Arrestin1 extended the population doubling time and the percentage of senile cells, the signatures of cellular senescence, of B-ALL LICs. Moreover, lack of β-Arrestin1 enhanced the expression of proteins (CBX, HIRA) and genes (P53, P16) related to senescence in leukemic Reh cells and B-ALL-LICs-derived leukemic mice...
April 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28425491/the-neural-dynamics-underlying-the-interpersonal-effects-of-emotional-expression-on-decision-making
#10
Xuhai Chen, Tingting Zheng, Lingzi Han, Yingchao Chang, Yangmei Luo
Although numerous studies explore the effects of emotion on decision-making, the existing research has mainly focused on the influence of intrapersonal emotions, leaving the influence of one person's emotions on another's decisions underestimated. To specify how interpersonal emotions shape decision-making and delineate the underlying neural dynamics involved, the present study examined brain responses to utilitarian feedback combined with angry or happy faces in competitive and cooperative contexts. Behavioral results showed that participants responded slower following losses than wins when competitors express happiness but responded faster following losses than wins when cooperators express anger...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424927/development-of-new-extra-glandular-manifestations-or-associated-auto-immune-diseases-after-establishing-the-diagnosis-of-primary-sj%C3%A3-gren-s-syndrome-a-long-term-study-of-the-antonius-nieuwegein-sj%C3%A3-gren-ans-cohort
#11
E J Ter Borg, J C Kelder
To investigate in a long-term study, the development of new extra-glandular manifestations (EGM) or associated auto-immune diseases (AID) from 1 year after establishing the diagnosis of primary Sjögren's syndrome (pSS). The primary goal was to examine the frequency and type of these manifestations and to find out which demographic, clinical and serological profile was most at risk. All outpatients diagnosed with primary Sjögren's syndrome were included in a retrospective study, with at least one check-up per year, from June 1991 until August 2015...
April 19, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28422891/relationship-and-associated-mechanisms-between-ambulatory-blood-pressure-and-clinic-blood-pressure-with-prevalent-cardiovascular-disease-in-diabetic-hypertensive-patients
#12
Zirui Hao, Guiping Li, Yue Sun, Yan Liu
The present study was to compare the association between ambulatory blood pressure (ABP) and clinic BP (CBP) with prevalent cardiovascular diseases (CVD); and the underlying mechanism would also be investigated concurrently.Diabetic hypertensive patients were enrolled and divided into 2 groups based on presence of CVD. Twenty-four hour-ABP monitoring was performed and between-group differences were evaluated and logistic regression analysis was conducted.A total of 568 diabetic hypertensive patients were enrolled, and the mean age was 60...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28420202/cereal-consumption-among-subjects-with-celiac-disease-a-snapshot-for-nutritional-considerations
#13
Francesco Valitutti, Donatella Iorfida, Caterina Anania, Chiara Maria Trovato, Monica Montuori, Salvatore Cucchiara, Carlo Catassi
BACKGROUND: To our knowledge no study has focused on the pattern of cereal-based products (CBP) consumption among people with celiac disease (CD). Our study aimed at evaluating the dietary intake of CBP among patients with CD and comparing it with a control population. METHODS: Eighty-two volunteers with CD and 77 non-CD volunteers enrolled throughout Italy were asked to register their consumption of CBP on specific diaries for three days. RESULTS: CD patients' median three-day intake of biscuits and crackers was higher compared to controls (65...
April 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28416608/hyper-o-glcnacylation-activates-nf-%C3%AE%C2%BAb-signaling-through-interplay-with-phosphorylation-and-acetylation
#14
Zhiyuan Ma, Robert J Chalkley, Keith Vosseller
O-GlcNAcylation is the covalent addition of an O-linked β-N-acetylglucosamine (O-GlcNAc) sugar moiety to hydroxyl groups of serine/threonine residues of cytosolic and nuclear proteins. O-GlcNAcylation, analogous to phosphorylation, plays critical roles in gene expression through direct modification of transcription factors such as NF-κB. Aberrantly increased NF-κB O-GlcNAcylation has been linked to NF-κB constitutive activation and cancer development. Therefore, it is of a great biological and clinical significance to dissect the molecular mechanisms that tune NF-κB activity...
April 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28416414/deep-temporal-models-and-active-inference
#15
REVIEW
Karl J Friston, Richard Rosch, Thomas Parr, Cathy Price, Howard Bowman
How do we navigate a deeply structured world? Why are you reading this sentence first - and did you actually look at the fifth word? This review offers some answers by appealing to active inference based on deep temporal models. It builds on previous formulations of active inference to simulate behavioural and electrophysiological responses under hierarchical generative models of state transitions. Inverting these models corresponds to sequential inference, such that the state at any hierarchical level entails a sequence of transitions in the level below...
April 14, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28416285/atypical-pkc-and-notch-inhibition-differentially-modulate-cortical-interneuron-subclass-fate-from-embryonic-stem-cells
#16
David J Tischfield, Junho Kim, Stewart A Anderson
Recent studies indicate that the location of neurogenesis within the medial ganglionic eminence (MGE) critically influences the fate determination of cortical interneuron subgroups, with parvalbumin (Pv) interneurons originating from subventricular zone divisions and somatostatin (Sst) interneurons primarily arising from apical divisions. The aPKC-CBP and Notch signaling pathways regulate the transition from apical to basal progenitor and their differentiation into post-mitotic neurons. We find that aPKC inhibition enhances intermediate neurogenesis from stem cell-derived MGE progenitors, resulting in a markedly increased ratio of Pv- to Sst-expressing interneurons...
April 6, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28416141/multiplexed-engineering-and-analysis-of-combinatorial-enhancer-activity-in-single-cells
#17
Shiqi Xie, Jialei Duan, Boxun Li, Pei Zhou, Gary C Hon
The study of enhancers has been hampered by the scarcity of methods to systematically quantify their endogenous activity. We develop Mosaic-seq to systematically perturb enhancers and measure their endogenous activities at single-cell resolution. Mosaic-seq uses a CRISPR barcoding system to jointly measure a cell's transcriptome and its sgRNA modulators, thus quantifying the effects of dCas9-KRAB-mediated enhancer repression in single cells. Applying Mosaic-seq to 71 constituent enhancers from 15 super-enhancers, our analysis of 51,448 sgRNA-induced transcriptomes finds that only a small number of constituents are major effectors of target gene expression...
April 20, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28413707/disrupting-dorsolateral-prefrontal-cortex-by-rtms-reduces-the-p300-based-marker-of-deception
#18
Inga Karton, Talis Bachmann
OBJECTIVE: Quite many studies have revealed certain brain-process signatures indicative of subject's deceptive behavior. These signatures are neural correlates of deception. However, much less is known about whether these signatures can be modified by noninvasive brain stimulation techniques representing methods of causal intervention of brain processes and the corresponding behavior. Our purpose was to explore whether such methods have an effect on these signatures. METHODS: It is well known that electroencephalographic event-related potential component, P300, is sensitive to perception of critical items in a concealed information test, one of the central methods in deception studies...
April 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28413430/next-generation-sequencing-of-non-small-cell-lung-cancer-using-a-customized-targeted-sequencing-panel-emphasis-on-small-biopsy-and-cytology
#19
David M DiBardino, David W Rawson, Anjali Saqi, Jonas J Heymann, Carlos A Pagan, William A Bulman
BACKGROUND: Next-generation sequencing (NGS) with a multi-gene panel is now available for patients with lung adenocarcinoma, but the performance characteristics and clinical utility of this testing are not well-described. We present the results of an extended 467 gene panel in a series of advanced, highly selected nonsmall cell lung cancer (NSCLC) patients using a range of specimens, including predominantly small biopsy and cytology specimens. MATERIALS AND METHODS: A retrospective review of 22 NSCLC biopsies sent for NGS using an extended gene panel from January 2014 to July 2015...
2017: CytoJournal
https://www.readbyqxmd.com/read/28412787/-progress-in-studies-on-the-genetic-risk-factors-for-nonsyndromic-cleft-lip-or-palate-in-china
#20
Y Q Huang
Cleft lip and palate is the most common congenital defects of oral and maxillofacial region in human beings. The etiology of this malformation is complex, with both genetic and environmental causal factors are involved. To provide a better understanding in the genetic etiology of cleft lip or palate, the author summarized recent years studies based on Chinese population. Those researches included validation of some candidate genes for cleft lip or palate, using genome wide association analysis which included six independent cohorts from China to elucidate the genetic architecture of non-syndromic cleft lip with or without cleft palate in Chinese population and finally found a new susceptibility locus...
April 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
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