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https://www.readbyqxmd.com/read/28092779/aberrant-spontaneous-neural-activity-and-correlation-with-evoked-brain-potentials-in-first-episode-treatment-na%C3%A3-ve-patients-with-deficit-and-non-deficit-schizophrenia
#1
Zhe Li, Wei Lei, Wei Deng, Zhong Zheng, Mingli Li, Xiaohong Ma, Qiang Wang, Chaohua Huang, Na Li, David A Collier, Qiyong Gong, Tao Li
The goals of the study were to analyze spontaneous neural activity between deficit and non-deficit schizophrenia (DS, NDS) using resting-state fMRI, and to investigate the correlation of fMRI with clinical features and evoked brain potentials. The amplitude of low frequency fluctuation (ALFF) was measured in 41 DS participants, 42 NDS participants, and 42 healthy controls. ALFF in the bilateral cerebellum posterior lobe was significantly decreased in patients, while ALFF in the right fusiform gyrus and the bilateral putamen was significantly increased...
January 5, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28090181/how-much-we-think-of-ourselves-and-how-little-we-think-of-others-an-investigation-of-the-neuronal-signature-of-self-consciousness-between-different-personality-traits-through-an-event-related-potential-study
#2
Auwal Bello Hassan, Tahamina Begum, Mohammed Faruque Reza, Nasir Yusoff
BACKGROUND: Previous studies have revealed that self-related tasks (items) receive more attention than non-self-related, and that they elicit event-related potential (ERP) components with larger amplitudes. Since personality has been reported as one of the biological correlates influencing these components, as well as our behavioural differences, it is important to examine how it affects our self-consciousness in relation to tasks of varied relevance and the neurological basis. METHODS: A total of 33 male and female undergraduate Malaysian medical students of Universiti Sains Malaysia (USM) participated in the study...
November 2016: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/28088188/incidence-and-predictors-of-left-ventricular-remodeling-among-elderly-asian-women-a-community-based-cohort-study
#3
Jing Wu, Caiqin Wu, Wenjing Fan, Jie Zhou, Ling Xu
BACKGROUND: Left ventricular (LV) remodeling is closely linked to the progression of heart failure. There are limited data on the epidemiology of new onset LV remodeling among elderly women, which requires further investigation. METHOD: We examined data from a community-based cohort of women aged > 65 years, who had received > 2 echocardiography scans from 2009 to 2014. Exclusion criteria for patients included prior echocardiographic evidence of left ventricular enlargement (LVE) or hypertrophy (LVH)...
January 14, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28080123/treating-adult-survivors-of-childhood-emotional-abuse-and-neglect-a-new-framework
#4
Frances K Grossman, Joseph Spinazzola, Marla Zucker, Elizabeth Hopper
This article provides the outline of a new framework for treating adult survivors of childhood emotional abuse and neglect. Component-based psychotherapy (CBP) is an evidence-informed model that bridges, synthesizes, and expands upon several existing schools, or theories, of treatment for adult survivors of traumatic stress. These include approaches to therapy that stem from more classic traditions in psychology, such as psychoanalysis, to more modern approaches including those informed by feminist thought...
2017: American Journal of Orthopsychiatry
https://www.readbyqxmd.com/read/28078400/characterization-of-four-endophytic-fungi-as-potential-consolidated-bioprocessing-hosts-for-conversion-of-lignocellulose-into-advanced-biofuels
#5
Weihua Wu, Ryan W Davis, Mary Bao Tran-Gyamfi, Alan Kuo, Kurt LaButti, Sirma Mihaltcheva, Hope Hundley, Mansi Chovatia, Erika Lindquist, Kerrie Barry, Igor V Grigoriev, Bernard Henrissat, John M Gladden
Recently, several endophytic fungi have been demonstrated to produce volatile organic compounds (VOCs) with properties similar to fossil fuels, called "mycodiesel," while growing on lignocellulosic plant and agricultural residues. The fact that endophytes are plant symbionts suggests that some may be able to produce lignocellulolytic enzymes, making them capable of both deconstructing lignocellulose and converting it into mycodiesel, two properties that indicate that these strains may be useful consolidated bioprocessing (CBP) hosts for the biofuel production...
January 12, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28077620/mitogen-induced-distinct-epi-alleles-are-phosphorylated-at-either-h3s10-or-h3s28-depending-on-h3k27-acetylation
#6
Dilshad H Khan, Shannon Healy, Shihua He, Daniel Lichtensztejn, Ludger Klewes, Kiran L Sharma, Veronica Lau, Sabine Mai, Geneviève P Delcuve, James R Davie
Stimulation of the MAPK pathway results in mitogen- and stress-activated protein kinase 1/2 (MSK1/2)-catalyzed phosphorylation of histone H3 at serine 10 or 28 and expression of immediate-early (IE) genes. In 10T1/2 mouse fibroblasts, phosphorylation of H3S10 and H3S28 occurs on different H3 molecules and in different nuclear regions. Likewise, we show that mitogen-induced H3S10 and H3S28 phosphorylation occurs in separate pools in human primary fibroblasts. High-resolution imaging studies on both cell types have revealed that H3S10 and H3S28 phosphorylation events can be induced in a single cell but on different alleles, giving rise to H3S10ph and H3S28ph epi-alleles...
January 11, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28077270/instructions-to-suppress-semantic-memory-enhances-or-has-no-effect-on-p300-in-a-concealed-information-test-cit
#7
J Peter Rosenfeld, Anne Ward, Jesse Drapekin, Elena Labkovsky, Samuel Tullman
The present study investigated the extent to which people can suppress semantic memory as indexed with the P300 ERP and the autobiographical implicit association test (aIAT). In EXP 1, participants (22) were run in a counterbalanced repeated measures study in both simply knowledgeable (SK) and knowledgeable with suppression (SP) conditions. A P300-based, concealed information test ("Complex Trial Protocol"; CTP) with a 50/50 Target/Nontarget (T/NT) ratio was given both with and without instructions to suppress semantic memories...
January 7, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28076781/crtc1-nuclear-translocation-following-learning-modulates-memory-strength-via-exchange-of-chromatin-remodeling-complexes-on-the-fgf1-gene
#8
Shusaku Uchida, Brett J W Teubner, Charles Hevi, Kumiko Hara, Ayumi Kobayashi, Rutu M Dave, Tatsushi Shintaku, Pattaporn Jaikhan, Hirotaka Yamagata, Takayoshi Suzuki, Yoshifumi Watanabe, Stanislav S Zakharenko, Gleb P Shumyatsky
Memory is formed by synapse-to-nucleus communication that leads to regulation of gene transcription, but the identity and organizational logic of signaling pathways involved in this communication remain unclear. Here we find that the transcription cofactor CRTC1 is a critical determinant of sustained gene transcription and memory strength in the hippocampus. Following associative learning, synaptically localized CRTC1 is translocated to the nucleus and regulates Fgf1b transcription in an activity-dependent manner...
January 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/28074931/eid3-directly-associates-with-dnmt3a-during-transdifferentiation-of-human-umbilical-cord-mesenchymal-stem-cells-to-npc-like-cells
#9
Liang Luo, Wen-Jin Chen, James Q Yin, Ru-Xiang Xu
There has been recently been increased interest in the plasticity of human umbilical cord mesenchymal stem cells (UMSCs) and their potential in the treatment of neurological disorders. In this study, UMSCs were transdifferentiated into neural stem-like cells (uNSCL), these cells grow in neurosphere-like structures and express high levels of NSCs markers. Epigenetics-related gene screening was here used to assess the relationship between E1A-like inhibitor of differentiation 3 (EID3), a p300 inhibitor, and DNA methyltransferase 3 A (DNMT3A) during the transdifferentiation of UMSCs into uNSCL in vitro...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28072604/epigenetic-upregulation-of-cxcl12-expression-mediates-anti-tubulin-chemotherapeutics-induced-neuropathic-pain
#10
Ting Xu, Xiao-Long Zhang, Han-Dong Ou-Yang, Zhen-Yu Li, Cui-Cui Liu, Zhen-Zhen Huang, Jing Xu, Jia-You Wei, Bi-Lin Nie, Chao Ma, Shao-Ling Wu, Wen-Jun Xin
Clinically, Microtubule-targeted agents-induced neuropathic pain hampers chemotherapeutics for cancer patients. Here, we found that application of paclitaxel or vincristine increased the protein and mRNA expression of CXCL12, and frequency and amplitude of miniature excitatory post synaptic currents (mEPSCs) in spinal dorsal horn neurons. Spinal local application of CXCL12 induced the long-term potentiation (LTP) of nociceptive synaptic transmission and increased the amplitude of mEPSCs. Inhibition of CXCL12 by using the transgenic mice (CXCL12) or neutralizing antibody or siRNA ameliorated the mEPSCs enhancement and mechanical allodynia...
January 7, 2017: Pain
https://www.readbyqxmd.com/read/28072415/functional-neuroimaging-effects-of-recently-discovered-genetic-risk-loci-for-schizophrenia-and-polygenic-risk-profile-in-five-rdoc-subdomains
#11
S Erk, S Mohnke, S Ripke, T A Lett, I M Veer, C Wackerhagen, O Grimm, N Romanczuk-Seiferth, F Degenhardt, H Tost, M Mattheisen, T W Mühleisen, K Charlet, N Skarabis, F Kiefer, S Cichon, S H Witt, M M Nöthen, M Rietschel, A Heinz, A Meyer-Lindenberg, H Walter
Recently, 125 loci with genome-wide support for association with schizophrenia were identified. We investigated the impact of these variants and their accumulated genetic risk on brain activation in five neurocognitive domains of the Research Domain Criteria (working memory, reward processing, episodic memory, social cognition and emotion processing). In 578 healthy subjects we tested for association (i) of a polygenic risk profile score (RPS) including all single-nucleotide polymorphisms (SNPs) reaching genome-wide significance in the recent genome-wide association studies (GWAS) meta-analysis and (ii) of all independent genome-wide significant loci separately that showed sufficient distribution of all allelic groups in our sample (105 SNPs)...
January 10, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28069943/acetylation-promotes-tyrrs-nuclear-translocation-to-prevent-oxidative-damage
#12
Xuanye Cao, Chaoqun Li, Siyu Xiao, Yunlan Tang, Jing Huang, Shuan Zhao, Xueyu Li, Jixi Li, Ruilin Zhang, Wei Yu
Tyrosyl-tRNA synthetase (TyrRS) is well known for its essential aminoacylation function in protein synthesis. Recently, TyrRS has been shown to translocate to the nucleus and protect against DNA damage due to oxidative stress. However, the mechanism of TyrRS nuclear localization has not yet been determined. Herein, we report that TyrRS becomes highly acetylated in response to oxidative stress, which promotes nuclear translocation. Moreover, p300/CBP-associated factor (PCAF), an acetyltransferase, and sirtuin 1 (SIRT1), a NAD(+)-dependent deacetylase, regulate the nuclear localization of TyrRS in an acetylation-dependent manner...
January 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28069569/the-crebbp-acetyltransferase-is-a-haploinsufficient-tumor-suppressor-in-b-cell-lymphoma
#13
Jiyuan Zhang, Sofija Vlasevska, Victoria A Wells, Sarah Nataraj, Antony B Holmes, Romain Duval, Stefanie N Meyer, Tongwei Mo, Katia Basso, Paul K Brindle, Shafinaz Hussein, Riccardo Dalla-Favera, Laura Pasqualucci
Inactivating mutations of the CREBBP acetyltransferase are highly frequent in diffuse large B-cell lymphoma (DLBCL) and follicular lymphoma (FL), the two most common germinal-center (GC) derived cancers. However, the role of CREBBP inactivation in lymphomagenesis remains unclear. Here we show that CREBBP regulates enhancer/super-enhancer networks with central roles in GC/post-GC cell fate decisions, including genes involved in signal transduction by the B-cell receptor and CD40 receptor, transcriptional control of GC and plasma cell development, and antigen presentation...
January 9, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28069324/differences-in-therapeutic-effects-of-topically-applied-corticosteroid-and-tacrolimus-on-atopic-dermatitis-like-symptoms-in-nc-nga-mice
#14
Atsushi Noguchi, Mitsutoshi Tominaga, Nobuaki Takahashi, Hironori Matsuda, Yayoi Kamata, Yoshie Umehara, Kyi Chan Ko, Yasushi Suga, Hideoki Ogawa, Kenji Takamori
BACKGROUND: Topical corticosteroid and calcineurin inhibitor have similar therapeutic benefits in atopic dermatitis (AD), but the differences in therapeutic mechanisms of action of these agents against AD symptoms are not fully understood. OBJECTIVE: This study was performed to examine the different effects of topical betamethasone valerate (BMV), clobetasol propionate (CBP), and tacrolimus (TAC) on itch-related behavior and dermatitis in NC/Nga mice with AD-like symptoms...
December 24, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28068431/cil-102-induced-cell-cycle-arrest-and-apoptosis-in-colorectal-cancer-cells-via-upregulation-of-p21-and-gadd45
#15
Wen-Shih Huang, Yi-Hung Kuo, Hsing-Chun Kuo, Meng-Chiao Hsieh, Cheng-Yi Huang, Ko-Chao Lee, Kam-Fai Lee, Chien-Heng Shen, Shui-Yi Tung, Chih-Chuan Teng
CIL-102 (1-[4-(furo[2,3-b]quinolin-4-ylamino)phenyl]ethanone) is a well-known, major active agent of the alkaloid derivative of Camptotheca acuminata with valuable biological properties, including anti-tumorigenic activity. In this study, we investigated the molecular mechanisms by which CIL-102 mediated the induction of cell death, and we performed cell cycle G2/M arrest to clarify molecular changes in colorectal cancer cells (CRC). Treatment of DLD-1 cells with CIL-102 resulted in triggering the extrinsic apoptosis pathway through the activation of Fas-L, caspase-8 and the induction of Bid cleavage and cytochrome c release in a time-dependent manner...
2017: PloS One
https://www.readbyqxmd.com/read/28064239/recurrent-somatic-mutations-affecting-b-cell-receptor-signaling-pathway-genes-in-follicular-lymphoma
#16
Kilannin Krysiak, Felicia Gomez, Brian S White, Matthew Matlock, Christopher A Miller, Lee Trani, Catrina C Fronick, Robert S Fulton, Friederike Kreisel, Amanda F Cashen, Kenneth R Carson, Melissa M Berrien-Elliott, Nancy L Bartlett, Malachi Griffith, Obi L Griffith, Todd A Fehniger
Follicular lymphoma (FL) is the most common form of indolent non-Hodgkin lymphoma, yet it remains only partially characterized at the genomic level. In order to improve our understanding of the genetic underpinnings of this incurable and clinically heterogeneous disease, whole exome sequencing was performed on tumor/normal pairs from a discovery cohort of 24 patients with FL. Using these data, and mutations identified in other B-cell malignancies, 1716 genes were sequenced in 113 FL tumor samples, from 105 primarily treatment-naïve individuals...
November 14, 2016: Blood
https://www.readbyqxmd.com/read/28063389/g-quadruplex-based-fluorometric-biosensor-for-label-free-and-homogenous-detection-of-protein-acetylation-related-enzymes-activities
#17
Huixia Wang, Yong Li, Kunli Zhao, Siyi Chen, Qin Wang, Bin Lin, Zhou Nie, Shouzhuo Yao
Reversible protein acetylation, one of the key types of post-translational modifications, is composed of histone acetylation and deacetylation, which is typically catalyzed by histone acetyltransferases (HATs) and histone deacetylases (HDACs) respectively. Herein, a label-free fluorescent method has been established for the homogeneous bioassay of HAT/HDAC activity and respective inhibitors. The proposed approach is primarily based on the electrostatic interaction between G-quadruplexes (G4s) and acetylation-related peptides, which results in marked change of fluorescent intensity of G4/Thioflavin T (ThT) complexes...
December 30, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28062857/positive-feedback-loop-mediated-by-protein-phosphatase-1%C3%AE-mobilization-of-p-tefb-and-basal-cdk1-drives-androgen-receptor-in-prostate-cancer
#18
Xiaming Liu, Yanfei Gao, HuiHui Ye, Sean Gerrin, Fen Ma, Yiming Wu, Tengfei Zhang, Joshua Russo, Changmeng Cai, Xin Yuan, Jihong Liu, Shaoyong Chen, Steven P Balk
P-TEFb (CDK9/cyclin T) plays a central role in androgen receptor (AR)-mediated transactivation by phosphorylating both RNA polymerase 2 complex proteins and AR at S81. CDK9 dephosphorylation mobilizes P-TEFb from an inhibitory 7SK ribonucleoprotein complex, but mechanisms targeting phosphatases to P-TEFb are unclear. We show that AR recruits protein phosphatase 1α (PP1α), resulting in P-TEFb mobilization and CDK9-mediated AR S81 phosphorylation. This increased pS81 enhances p300 recruitment, histone acetylation, BRD4 binding and subsequent further recruitment of P-TEFb, generating a positive feedback loop that sustains transcription...
January 6, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28062671/targeting-hdac3-in-crebbp-mutant-lymphomas-counterstrikes-unopposed-enhancer-deacetylation-of-b-cell-signaling-and-immune-response-genes
#19
Uta E Höpken
The cellular phenotype of B-cell lymphomas arising from B cells undergoing germinal center reactions, such as follicular lymphoma and diffuse large B-cell lymphoma, is strongly shaped by mutations in chromatin-modifying genes. The work presented by Jiang and colleagues addresses how somatic mutations in CREBBP disable acetylation and cause unopposed deacetylation by BCL6/SMRT/HDAC3 complexes on enhancers of B-cell signaling and immune response genes. This opens a therapeutic avenue toward targeted inhibition of CREBBP-mutant lymphomas by HDAC inhibitors...
January 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28062405/presence-of-multiple-spondyloarthritis-spa-features-is-important-but-not-sufficient-for-a-diagnosis-of-axial-spondyloarthritis-data-from-the-spondyloarthritis-caught-early-space-cohort
#20
Z Ez-Zaitouni, P A C Bakker, M van Lunteren, I J Berg, R Landewé, M van Oosterhout, M Lorenzin, D van der Heijde, F A van Gaalen
OBJECTIVES: Concerns have been raised about overdiagnosis of axial spondyloarthritis (axSpA). We investigated whether patients with chronic back pain (CBP) of short duration and multiple SpA features are always diagnosed with axSpA by the rheumatologist, and to what extent fulfilment of the Assessment of SpondyloArthritis International Society (ASAS) axSpA criteria is associated with an axSpA diagnosis. METHODS: Baseline data from 500 patients from the SPondyloArthritis Caught Early cohort which includes patients with CBP (≥3 months, ≤2 years, onset <45 years) were analysed...
January 6, 2017: Annals of the Rheumatic Diseases
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