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https://www.readbyqxmd.com/read/29228692/epigenetic-landscape-change-analysis-during-human-emt-sheds-light-on-a-key-emt-mediator-trim29
#1
Sung Kyung Choi, Kurinji Pandiyan, Jung Woo Eun, Xiaojing Yang, Seong Hwi Hong, Suk Woo Nam, Peter A Jones, Gangning Liang, Jueng Soo You
Epithelial to mesenchymal transition (EMT) is a key trans-differentiation process, which plays a critical role in physiology and pathology. Although gene expression changes in EMT have been scrutinized, study of epigenome is in its infancy. To understand epigenetic changes during TWIST-driven EMT, we used the AcceSssIble assay to study DNA methylation and chromatin accessibility in human mammary epithelial cells (HMECs). The DNA methylation changes were found to have functional significance in EMT - i.e. methylated genes were enriched for E-box motifs that can be recognized by TWIST, at the promoters suggesting a potential targeting phenomenon, whereas the demethylated regions were enriched for pro-metastatic genes, supporting the role of EMT in metastasis...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29225355/evolutionary-conservation-and-functional-divergence-of-the-lfk-gene-family-play-important-roles-in-the-photoperiodic-flowering-pathway-of-land-plants
#2
Ling Lu, Yuanqi Wu, Zhengqiao Liao, Jing Xiong, Fengkai Wu, Jie Xu, Hai Lan, Qiling Tang, Shufeng Zhou, Yaxi Liu, Yanli Lu
ZEITLUPE (ZTL), LOV KELCH PROTEIN 2 (LKP2), and FLAVIN-BINDING KELCH REPEAT F-BOX 1 (FKF1)-blue-light photoreceptors-play important roles in regulating the circadian clock and photoperiodic flowering pathway in plants. In this study, phylogenetic analysis revealed that the LOV (Light, Oxygen, or Voltage) and Kelch repeat-containing F-box (LFK) gene family can be classified into two clades, ZTL/LKP2 and FKF1, with clear differentiation between monocots and dicots within each clade. The LFK family genes underwent strong purifying selection; however, signatures of positive selection to adapt to local conditions still existed in 18 specific codons...
December 11, 2017: Heredity
https://www.readbyqxmd.com/read/29217165/anxiolytic-and-antidepressant-like-activities-of-a-methanolic-extract-of-morinda-citrifolia-linn-noni-fruit-in-mice-involvement-of-benzodiazepine-gabaaergic-serotonergic-and-adrenergic-systems
#3
Megala Narasingam, Kamini Vijeepallam, Zahurin Mohamed, Vijayapandi Pandy
This study presents anxiolytic- and antidepressant-like effects of a methanolic extract of Morinda citrifolia Linn. (noni) fruit (MMC) in well-established mouse models of anxiety and depression. The administration of MMC (1 g/kg, p.o.) and diazepam (1 mg/kg, i.p.) significantly attenuated anxiety-like behaviour in mice by increasing the percentage of time spent and number of entries in the open arms in the elevated plus maze (EPM), and significantly enhanced the exploration in the light box in the light/dark test (LDT)...
December 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29211814/overexpression-of-transmembrane-protein-168-in-the-mouse-nucleus-accumbens-induces-anxiety-and-sensorimotor-gating-deficit
#4
Kequan Fu, Yoshiaki Miyamoto, Kazuyuki Sumi, Eriko Saika, Shin-Ichi Muramatsu, Kyosuke Uno, Atsumi Nitta
Transmembrane protein 168 (TMEM168) comprises 697 amino acid residues, including some putative transmembrane domains. It is reported that TMEM168 controls methamphetamine (METH) dependence in the nucleus accumbens (NAc) of mice. Moreover, a strong link between METH dependence-induced adaptive changes in the brain and mood disorders has been evaluated. In the present study, we investigated the effects of accumbal TMEM168 in a battery of behavioral paradigms. The adeno-associated virus (AAV) Tmem168 vector was injected into the NAc of C57BL/6J mice (NAc-TMEM mice)...
2017: PloS One
https://www.readbyqxmd.com/read/29198295/the-effect-of-systematic-light-exposure-on-sleep-in-a-mixed-group-of-fatigued-cancer-survivors
#5
Lisa M Wu, Ali Amidi, Heiddis Valdimarsdottir, Sonia Ancoli-Israel, Lianqi Liu, Gary Winkel, Emily E Byrne, Ana Vallejo Sefair, Alejandro Vega, Katrin Bovbjerg, William H Redd
STUDY OBJECTIVES: Sleep disturbances are commonly reported by cancer survivors. Systematic light exposure using bright light has been used to improve sleep in other populations. In this secondary data analysis, the effect of morning administration of bright light on sleep and sleep quality was examined in a mixed group of fatigued cancer survivors. METHODS: Forty-four cancer survivors screened for cancer-related fatigue were randomized to either a bright white light or a comparison dim red light condition...
November 29, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29193703/inflammation-and-thrombosis-roles-of-neutrophils-platelets-and-endothelial-cells-and-their-interactions-in-thrombus-formation-during-sepsis
#6
REVIEW
Toshiaki Iba, Jerrold H Levy
The inflammatory response and the activation of coagulation are two important responses in a host's defense against infection. These mechanisms do not work independently but cooperate in a complex and synchronous manner. Recent research has also shed light on the critical role of thrombus formation that prevents the dissemination of microbes. The cellular components of blood vessels, leukocytes, platelets, erythrocytes, and vascular endothelial cells play significant roles in the development of thrombi in combination with activation of the coagulation system...
November 29, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29185851/the-preference-for-social-affiliation-renders-fish-willing-to-accept-lower-o2-levels
#7
Brittney G Borowiec, Constance M O'Connor, Kelsey Goodick, Graham R Scott, Sigal Balshine
Animals are bombarded with information about their environment and must select and interpret the relevant cues to make behavioral adjustments critical to survival. How animals integrate and balance the many signals they receive about their environment is rarely assessed. We investigated how signals from the social and physical environment interact to influence environmental preferences in the endemic Tanganyikan cichlid Neolamprologus pulcher. Specifically, we explored how fish respond to the physiological challenge of declining O2 levels in light of embedded social preferences using a modified shuttle box apparatus to test O2 preferences...
January 2018: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/29184257/optimization-and-characterization-of-high-pressure-homogenization-produced-chemically-modified-starch-nanoparticles
#8
Yongbo Ding, Jianquan Kan
Chemically modified starch (RS4) nanoparticles were synthesized through homogenization and water-in-oil mini-emulsion cross-linking. Homogenization was optimized with regard to z-average diameter by using a three-factor-three-level Box-Behnken design. Homogenization pressure (X1), oil/water ratio (X2), and surfactant (X3) were selected as independent variables, whereas z-average diameter was considered as a dependent variable. The following optimum preparation conditions were obtained to achieve the minimum average size of these nanoparticles: 50 MPa homogenization pressure, 10:1 oil/water ratio, and 2 g surfactant amount, when the predicted z-average diameter was 303...
December 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29175455/anxiolytic-and-antidepressant-like-effects-of-silymarin-compared-to-diazepam-and-fluoxetine-in-a-mouse-model-of-mild-traumatic-brain-injury
#9
Morteza Kosari-Nasab, Ghaffar Shokouhi, Amir Ghorbani Haghjoo, Mehran Mesgari Abbasi, Ali-Akbar Salari
Clinical and experimental studies have shown that mild traumatic brain injury (mTBI) is associated with increased anxiety- and depression-related behaviors and inflammation in the brain. Unfortunately, there are no specific therapies for long-term behavioral consequences of mTBI. This study set out to determine whether silymarin treatment compared to diazepam (DZP) and fluoxetine (FLX) can reduce neuroinflammation, anxiety- and depression-like behaviors after mTBI induction in mice. We used open field, elevated plus maze, light-dark box, zero maze, sucrose preference, forced swim, and tail suspension tests to assess anxiety and depression-like behaviors in mTBI-induced mice...
November 21, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29163035/npas2-regulation-of-anxiety-like-behavior-and-gabaa-receptors
#10
Angela R Ozburn, Joseph Kern, Puja K Parekh, Ryan W Logan, Zheng Liu, Edgardo Falcon, Darius Becker-Krail, Kush Purohit, Nicole M Edgar, Yanhua Huang, Colleen A McClung
Abnormal circadian rhythms and circadian genes are strongly associated with several psychiatric disorders. Neuronal PAS Domain Protein 2 (NPAS2) is a core component of the molecular clock that acts as a transcription factor and is highly expressed in reward- and stress-related brain regions such as the striatum. However, the mechanism by which NPAS2 is involved in mood-related behaviors is still unclear. We measured anxiety-like behaviors in mice with a global null mutation in Npas2 (Npas2 null mutant mice) and found that Npas2 null mutant mice exhibit less anxiety-like behavior than their wild-type (WT) littermates (in elevated plus maze, light/dark box and open field assay)...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29156025/cerebral-blood-flow-and-its-autoregulation-when-will-there-be-some-light-in-the-black-box
#11
F Grüne, M Klimek
No abstract text is available yet for this article.
December 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29155981/des-acyl-ghrelin-decreases-anxiety-like-behavior-in-male-mice
#12
Parinaz Mahbod, Eric P Smith, Maureen E Fitzgerald, Rachel L Morano, Benjamin A Packard, Sriparna Ghosal, Jessie R Scheimann, Diego Perez-Tilve, James P Herman, Jenny Tong
Ghrelin is a 28-amino acid polypeptide that regulates feeding, glucose metabolism and emotionality (stress, anxiety and depression). Plasma ghrelin circulates as desacyl ghrelin (DAG) or in an acylated form, acyl ghrelin (AG), through the actions of Ghrelin -O-Acyltransferase (GOAT), exhibiting low or high affinity, respectively, for the growth hormone secretagogue receptor (GHSR1a). We investigated the role of endogenous AG, DAG and GHSR1a signaling on anxiety and stress responses using ghrelin knockout (Ghr KO), GOAT KO, and Ghsr-stop-floxed (Ghsr null) mice...
November 15, 2017: Endocrinology
https://www.readbyqxmd.com/read/29155768/slice-patch-clamp-technique-for-analyzing-learning-induced-plasticity
#13
Hiroyuki Kida, Yuya Sakimoto, Dai Mitsushima
The slice patch clamp technique is a powerful tool for investigating learning-induced neural plasticity in specific brain regions. To analyze motor-learning induced plasticity, we trained rats using an accelerated rotor rod task. Rats performed the task 10 times at 30-s intervals for 1 or 2 days. Performance was significantly improved on the training days compared to the first trial. We then prepared acute brain slices of the primary motor cortex (M1) in untrained and trained rats. Current-clamp analysis showed dynamic changes in resting membrane potential, spike threshold, afterhyperpolarization, and membrane resistance in layer II/III pyramidal neurons...
November 11, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29153770/rats-exposed-to-2-45ghz-of-non-ionizing-radiation-exhibit-behavioral-changes-with-increased-brain-expression-of-apoptotic-caspase-3
#14
Rini Varghese, Anuradha Majumdar, Girish Kumar, Amit Shukla
In recent years there has been a tremendous increase in use of Wi-Fi devices along with mobile phones, globally. Wi-Fi devices make use of 2.4GHz frequency. The present study evaluated the impact of 2.45GHz radiation exposure for 4h/day for 45days on behavioral and oxidative stress parameters in female Sprague Dawley rats. Behavioral tests of anxiety, learning and memory were started from day 38. Oxidative stress parameters were estimated in brain homogenates after sacrificing the rats on day 45. In morris water maze, elevated plus maze and light dark box test, the 2...
November 14, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/29149457/hmgb1-controls-liver-cancer-initiation-through-yap-dependent-aerobic-glycolysis
#15
Ruochan Chen, Shan Zhu, Xue-Gong Fan, Haichao Wang, Michael T Lotze, Herbert J Zeh, Timothy R Billiar, Rui Kang, Daolin Tang
Emerging studies have suggested that the Hippo pathway is involved in the tumorigenesis of hepatocellular carcinoma (HCC). However, the key regulator of the Hippo pathway in liver tumor metabolic reprogramming remains elusive. Here, we provide evidence to support that high mobility group box 1 (HMGB1), a chromosomal protein, plays a role in the regulation of the Hippo pathway during liver tumorigenesis. Cre/loxP recombination-mediated HMGB1 depletion in hepatocytes blocks diethylnitrosamine-induced liver cancer initiation in mice, whereas shRNA-mediated gene silencing of HMGB1 inhibits HCC cell proliferation...
November 17, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29140699/size-consistent-excited-states-via-algorithmic-transformations-between-variational-principles
#16
Jacqueline A R Shea, Eric Neuscamman
We demonstrate that a broad class of excited state variational principles is not size consistent. In light of this difficulty, we develop and test an approach to excited state optimization that transforms between variational principles in order to achieve state selectivity, size consistency, and compatibility with quantum Monte Carlo. To complement our formal analysis, we provide numerical examples that confirm these properties and demonstrate how they contribute to a more black box approach to excited states in quantum Monte Carlo...
November 15, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29138094/foxo1-3-potential-suppressors-of-fibrosis
#17
REVIEW
Zhenlong Xin, Zhiqiang Ma, Wei Hu, Shuai Jiang, Zhi Yang, Tian Li, Fulin Chen, Guozhan Jia, Yang Yang
Fibrosis is a universally age-related disease that involves nearly all organs. It is typically initiated by organic injury and eventually results in organ failure. There are still few effective therapeutic strategy targets for fibrogenesis. Forkhead box proteins O1 and O3 (FOXO1/3) have been shown to have favorable inhibitory effects on fibroblast activation and subsequent extracellular matrix production and can ameliorate fibrosis levels in numerous organs, including the heart, liver, lung, and kidney; they are therefore promising targets for anti-fibrosis therapy...
November 11, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/29123412/lncrna-meg3-enhances-cisplatin-sensitivity-in-non-small-cell-lung-cancer-by-regulating-mir-21-5p-sox7-axis
#18
Pei Wang, Dong Chen, Hongbing Ma, Yong Li
Background: Long noncoding RNAs (lncRNAs) have been revealed to play essential role in drug resistance of multiple cancers. LncRNA MEG3 was previously reported to be associated with cisplatin (DDP) resistance in non-small cell lung cancer (NSCLC) cells. However, the molecular mechanism of MEG3 affecting DDP resistance in NSCLC remains to be further illustrated. In this study, we attempted to discuss whether MEG3 also could function as a competing endogenous RNA to regulate DDP resistance in NSCLC...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29121271/genome-wide-identification-of-arabidopsis-lbd29-target-genes-reveals-the-molecular-events-behind-auxin-induced-cell-reprograming-during-callus-formation
#19
Chongyi Xu, Huifen Cao, Enjun Xu, Shiqi Zhang, Yuxin Hu
Auxin-induced callus formation represents an important cell reprograming process during in vitro regeneration of plants, in which the pericycle or pericycle-like cells within plant organs are reprogramed into the pluripotent cell mass termed callus that is generally required for subsequent regeneration of root or shoot. However, the molecular events behind cell reprograming during auxin-induced callus formation are largely elusive. We previously identified that auxin-induced LBD transcription factors act as the master regulators to trigger auxin-induced callus formation...
November 7, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29120948/parvalbumin-containing-gaba-cells-and-schizophrenia-experimental-model-based-on-targeted-gene-delivery-through-adeno-associated-viruses
#20
Marta U Woloszynowska-Fraser, Peer Wulff, Gernot Riedel
Understanding the contribution of transmitter systems in behavioural pharmacology has a long tradition. Multiple techniques such as transmitter-specific lesions, and also localized administration of pharmacological toxins including agonists and antagonists of selected receptors have been applied. More recently, modern genetic tools have permitted cell-type selective interferences, for example by expression of light-sensitive channels followed by optogenetic stimulation in behaviourally meaningful settings or by engineered channels termed DREADDS that respond to peripherally administered drugs...
December 2017: Behavioural Pharmacology
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