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https://www.readbyqxmd.com/read/28109109/-role-of-camp-creb-bdnf-signaling-pathway-in-anti-depressive-effect-of-vortioxetine-in-mice
#1
Hui Yu, Jia-Jia Chen, Bing-Qing Zeng, Qiu-Ping Zhong, Jiang-Ping Xu, Yong-Gang Liu
OBJECTIVE: To investigate the effects of vortioxetine on cAMP/CREB/BDNF signal pathway. METHODS: Forty Kunming mice were randomized into control group and chronic unpredictable mild stress (CUMS) group. After establishment of depressive models verified by sucrose preference test, the mice in CUMS group were divided into model group, fluoxetine group and vortioxetine group. The antidepressive effect of vortioxetine was analyzed by tail suspension test, forced swim test and open field test...
January 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28108322/effect-of-zbd-2-on-chronic-pain-depressive-like-behaviors-and-recovery-of-motor-function-following-spinal-cord-injury-in-mice
#2
Xiao-Ming Li, Jia Meng, Lin Tao Li, Ting Guo, Liu-Kun Yang, Qi-Xin Shi, Xu-Bo Li, Yong Chen, Qi Yang, Jian-Ning Zhao
In addition to debilitating sensory and motor deficits, patients with spinal cord injury (SCI) may experience chronic hyperpathic pain (SCI-pain). Recent studies have revealed that translocator protein (TSPO) is involved in repairing neural cells as well as reducing anxiety and depression. However, the role of TSPO in SCI-pain and pain-induced depression remains unknown. The present study aimed to determine the effects of a new TSPO ligand, ZBD-2, on SCI-pain and consequent pain-induced depressive-like behaviors in mice...
January 17, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28105751/stim-1-and-orai-1-channel-mediate-angiotensin-ii-induced-expression-of-egr-1-in-vascular-smooth-muscle-cells
#3
Estelle R Simo-Cheyou, Ju Jing Tan, Ryszard Grygorczyk, Ashok K Srivastava
An upregulation of Egr-1 expression has been reported in models of atherosclerosis and intimal hyperplasia and, various vasoactive peptides and growth promoting stimuli have been shown to induce the expression of Egr-1 in vascular smooth muscle cells (VSMC). Angiotensin-II (Ang-II) is a key vasoactive peptide that has been implicated in the pathogenesis of vascular diseases. Ang-II elevates intracellular Ca(2+) through activation of the store-operated calcium entry (SOCE) involving an inositol-3-phosphate receptor (IP3R)-coupled depletion of endoplasmic reticular Ca(2+) and a subsequent activation of the stromal interaction molecule 1 (STIM-1) /Orai-1 complex...
January 20, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28105703/mechanisms-involved-in-enhancement-of-matrix-metalloproteinase-9-expression-in-macrophages-by-interleukin-33
#4
Wataru Ariyoshi, Toshinori Okinaga, Wichida Chaweewannakorn, Sumio Akifusa, Tatsuji Nisihara
Endothelial transmigration of macrophages is accomplished by matrix metalloproteinase (MMP)-induced degradation of the basement membrane and extracellular matrix components. Macrophages up-regulate MMP-9 expression and secretion upon immunological challenges and require its activity for migration during inflammatory responses. Interleukin (IL)-33 is a recently discovered pro-inflammatory cytokine that belongs to the IL-1 family. The aim of this study was to elucidate the mechanisms underlying IL-33-induced MMP-9 expression in the mouse monocyte/macrophage line RAW264...
January 20, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28102395/sesamol-ameliorates-high-fat-and-high-fructose-induced-cognitive-defects-via-improving-insulin-signaling-disruption-in-the-central-nervous-system
#5
Zhigang Liu, Yali Sun, Qinglian Qiao, Tong Zhao, Wentong Zhang, Bo Ren, Qian Liu, Xuebo Liu
Sesamol, a nutritional component from sesame, possesses antioxidant, lipid lowering and antidepressant activities. Nonetheless, few studies report its effects on high-energy-dense diet-induced cognitive loss. The present research aimed to elucidate the action of sesamol on high-fat and high-fructose (HFFD) "western"-diet-induced central nervous system insulin resistance and learning and memory impairment, and further determined the possible underlying mechanism. 3 month-old C57BL/6J mice were divided into 3 groups with/without sesamol in the drinking water (0...
January 19, 2017: Food & Function
https://www.readbyqxmd.com/read/28102080/n-oleoylglycine-induced-hyperphagia-was-associated-with-the-activation-of-agrp-neuron-by-cb1r
#6
Junguo Wu, Canjun Zhu, Liusong Yang, Zhonggang Wang, Lina Wang, Songbo Wang, Ping Gao, Yongliang Zhang, Qingyan Jiang, Gang Shu, Xiaotong Zhu
N-acyl amino acids (NAAAs) are conjugate products of fatty acids and amino acids, which are available in animal-derived food. We compared the effects of N-arachidonoyl glycine (NAGly), N-arachidonoyl serine (NASer), and N-Oleoylglycine (OLGly) on in vivo food intake and in vitro [Ca2+]i of AgRP neurons to identify the role of these compounds in energy homeostasis. The hypothalamic neuropeptide expression and anxiety behavior in response to OLGly were also tested. To further identify the underlying mechanism of OLGly on food intake, we first detected the expression level of potential OLGly receptors...
January 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28100301/high-throughput-screening-of-a-glaxosmithkline-protein-kinase-inhibitor-set-identifies-an-inhibitor-of-human-cytomegalovirus-replication-that-prevents-creb-and-histone-h3-post-translational-modification
#7
Amina S Khan, Matthew J Murray, Catherine M K Ho, William J Zuercher, Matthew B Reeves, Blair L Strang
To identify new compounds with anti-human cytomegalovirus (HCMV) activity and new anti-HCMV targets, we developed a high throughput strategy to screen a GlaxoSmithKline (GSK) Published Kinase Inhibitor Set (PKIS). This collection contains a range of extensively characterized compounds grouped into chemical families (chemotypes). From our screen we identified compounds within chemotypes that impede HCMV replication and identified kinase proteins associated with inhibition of HCMV replication that are potential novel anti-HCMV targets...
January 18, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28099871/fluoride-and-arsenic-exposure-affects-spatial-memory-and-activates-the-erk-creb-signaling-pathway-in-offspring-rats
#8
Yu-Peng Zhu, Shu-Hua Xi, Ming-Yan Li, Ting-Ting Ding, Nan Liu, Fu-Yuan Cao, Yang Zeng, Xiao-Jing Liu, Jun-Wang Tong, Shou-Fang Jiang
Fluoride and arsenic are inorganic contaminants that occur in the natural environment. Chronic fluoride and/or arsenic exposure can induce developmental neurotoxicity and negatively influence intelligence in children, although the underlying molecular mechanisms are poorly understood. This study explored the effects of fluoride and arsenic exposure in drinking water on spatial learning, memory and key protein expression in the ERK/CREB signaling pathway in hippocampal and cerebral cortex tissue in rat offspring...
January 15, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28097489/enhanced-histone-acetylation-in-the-infralimbic-prefrontal-cortex-is-associated-with-fear-extinction
#9
Sarfraj Ahmad Siddiqui, Sanjay Singh, Vandana Ranjan, Rajesh Ugale, Sudipta Saha, Anand Prakash
The molecular processes that establish fear memory are complex and involve a combination of genetic and epigenetic influences. Dysregulation of these processes can manifest in humans as a range of fear-related anxiety disorders like post-traumatic stress disorders (PTSD). In the present study, immunohistochemistry for acetyl H3, H4, c-fos, CBP (CREB-binding protein) in the infralimbic prefrontal cortex (IL-PFC) and prelimbic prefrontal cortex (PL-PFC) of mPFC (medial prefrontal cortex) and basal amygdala (BA), lateral amygdala (LA), centrolateral amygdala (CeL), centromedial amygdala (CeM) of the amygdala was performed to link region-specific histone acetylation to fear and extinction learning...
January 17, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28097228/kappa-opioid-receptor-signaling-protects-cartilage-tissue-against-posttraumatic-degeneration
#10
Ling Wu, Shu Zhang, Ruzanna Shkhyan, Siyoung Lee, Francesca Gullo, Claire D Eliasberg, Frank A Petrigliano, Kai Ba, Jing Wang, Yunfeng Lin, Denis Evseenko
Osteoarthritis is the most common form of arthritis, and pain relief with opioid-like drugs is a commonly used therapeutic for osteoarthritic patients. Recent studies published by our group showed that the kappa opioid receptor (KOR) is highly expressed during human development in joint-forming cells. However, the precise role of this receptor in the skeletal system remains elusive. The main aim of the current study was to investigate the role of KOR signaling in synovial and cartilaginous tissues in pathological conditions...
January 12, 2017: JCI Insight
https://www.readbyqxmd.com/read/28096878/reversion-of-bdnf-akt-and-creb-in-hippocampus-of-chronic-unpredictable-stress-induced-rats-effects-of-phytochemical-bacopa-monnieri
#11
Somoday Hazra, Sourav Kumar, Goutam Kumar Saha, Amal Chandra Mondal
OBJECTIVE: The aims of the present study were to explore the behavioural effects and to understand the possible mode of action of Bacopa monnieri extract (BME) on chronic unpredictable stress (CUS) induced depressive model and the biochemical alterations such as brain derived neurotrophic factor (BDNF), Akt, cyclic-AMP response element binding (CREB) protein level in the hippocampus of rats. METHODS: We examined the effects of chronic administration of BME on CUS exposed rats for 28 days...
January 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28095363/curcumin-confers-neuroprotection-against-alcohol-induced-hippocampal-neurodegeneration-via-creb-bdnf-pathway-in-rats
#12
Majid Motaghinejad, Manijeh Motevalian, Sulail Fatima, Hajar Hashemi, Mina Gholami
BACKGROUND: Alcohol abuse causes severe damage to the brain neurons. Studies have reported the neuroprotective effects of curcumin against alcohol-induced neurodegeneration. However, the precise mechanism of action remains unclear. METHODS: Seventy rats were equally divided into 7 groups (10 rats per group). Group 1 received normal saline (0.7ml/rat) and group 2 received alcohol (2g/kg/day) for 21days. Groups 3, 4, 5 and 6 concurrently received alcohol (2g/kg/day) and curcumin (10, 20, 40 and 60mg/kg, respectively) for 21days...
January 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28092166/subchronic-metformin-pretreatment-enhances-novel-object-recognition-memory-task-in-forebrain-ischemia-behavioural-molecular-and-electrophysiological-studies
#13
Ghorbangol Ashabi, Alireza Sarkaki, Fariba Khodagholi, Shima Zareh Shahamati, Mahdi Goudarzvand, Yaghoob Farbood, Mohammad Badavi, Leila Khalaj
Metformin exerts its effect via AMP-activated protein kinase (AMPK), which is a key sensor for energy homeostasis that regulates different intracellular pathways. Metformin attenuates oxidative stress and cognitive impairment. In our experiment, rats were divided into 8 groups; some were pretreated with metformin (Met, 200 mg/kg) and (or) the AMPK inhibitor Compound C (CC) for 14 days. On day 14, rats underwent transient forebrain global ischemia. Data indicated that pretreatment of ischemic rats with metformin reduced working memory deficits in a novel object recognition test compared to group with ischemia-reperfusion (I-R) (P < 0...
November 4, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28089932/selenizing-hericium-erinaceus-polysaccharides-induces-dendritic-cells-maturation-through-mapk-and-nf-%C3%AE%C2%BAb-signaling-pathways
#14
Tao Qin, Zhe Ren, Yifan Huang, Yulong Song, Dandan Lin, Jian Li, Yufang Ma, Xiuqin Wu, Fuan Qiu, Qi Xiao
In this study, polysaccharides extracted from Hericium erinaceus were modified to obtain its nine selenium derivatives, sHEP1-sHEP9. Their structures were identified, yields and selenium contents were determined, the phenotypic and functional maturation of murine bone marrow-derived dendritic cells (DCs) and relevant mechanisms were compared taking unmodified HEP as control. The results revealed that the selenylation were successful. sHEP1, sHEP2 and sHEP8 treatment of DCs increased their surface expression of MHC-II and CD86 and indicated that sHEP1, sHEP2 and sHEP8 induced DC maturation...
January 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28089567/adipose-tissue-clk2-promotes-energy-expenditure-during-high-fat-diet-intermittent-fasting
#15
Maximilian Hatting, Amy K Rines, Chi Luo, Mitsuhisa Tabata, Kfir Sharabi, Jessica A Hall, Francisco Verdeguer, Christian Trautwein, Pere Puigserver
A promising approach to treating obesity is to increase diet-induced thermogenesis in brown adipose tissue (BAT), but the regulation of this process remains unclear. Here we find that CDC-like kinase 2 (CLK2) is expressed in BAT and upregulated upon refeeding. Mice lacking CLK2 in adipose tissue exhibit exacerbated obesity and decreased energy expenditure during high-fat diet intermittent fasting. Additionally, tissue oxygen consumption and protein levels of UCP1 are reduced in CLK2-deficient BAT. Phosphorylation of CREB, a transcriptional activator of UCP1, is markedly decreased in BAT cells lacking CLK2 due to enhanced CREB dephosphorylation...
January 11, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28087833/dysregulation-of-map-kinase-signaling-pathways-including-p38mapk-sapk-jnk-and-erk1-2-in-cultured-rat-cerebellar-astrocytes-exposed-to-diphenylarsinic-acid
#16
Takayuki Negishi, Mami Matsumoto, Yayoi Kobayashi, Mikiya Kojima, Fumika Sakaguchi, Kazuaki Takahata, Tomoko Kanehira, Rina Arakaki, Yohei Aoyama, Hikari Yoshida, Rena Yamada, Nobutaka Sumiyoshi, Tomoko Tashiro, Seishiro Hirano, Kenji Yoshida, Kazunori Yukawa
Diphenylarsinic acid (DPAA) was a major compound found in the arsenic poisoning incident that occurred in Kamisu, Ibaraki, Japan in 2003. People exposed to DPAA via contaminated well water suffered from several neurological disorders, including cerebellar symptoms. We previously reported that DPAA induces cellular activation in cultured rat cerebellar astrocytes, dose-dependent promotion of cell growth (low DPAA), cell death (high DPAA), and increased phosphorylation of mitogen-activated protein (MAP) kinases (p38MAPK, SAPK/JNK, and ERK1/2)...
January 13, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28087671/induction-and-differentiation-of-il-10-producing-regulatory-b-cells-from-healthy-blood-donors-and-rheumatoid-arthritis-patients
#17
Zsuzsanna Bankó, Judit Pozsgay, Dániel Szili, Mária Tóth, Tamás Gáti, György Nagy, Bernadette Rojkovich, Gabriella Sármay
The most important feature of B cells is the production of Abs upon activation; additionally, B cells produce pro- and anti-inflammatory cytokines in response to certain stimuli. IL-10-producing B cells represent a major subset of regulatory B cells (Bregs) that suppress autoimmune and inflammatory responses. B cells play a crucial role in the development and maintenance of the chronic inflammatory autoimmune disease rheumatoid arthritis (RA); however, controversial data are available on IL-10- producing Bregs in RA...
January 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28079521/isoform-specific-subcellular-localization-and-function-of-protein-kinase-a-identified-by-mosaic-imaging-of-mouse-brain
#18
Ronit Ilouz, Varda Lev-Ram, Eric A Bushong, Travis L Stiles, Dinorah Friedmann-Morvinski, Christopher Douglas, Geoffrey Goldberg, Mark H Ellisman, Susan S Taylor
Protein kinase A (PKA) plays critical roles in neuronal function that are mediated by different regulatory (R) subunits. Deficiency in either RIβ or RIIβ subunits results in distinct neuronal phenotypes. Although RIβ contributes to synaptic plasticity, it is the least studied isoform. Using isoform-specific antibodies we generated high-resolution large-scale immunohistochemical mosaic images of mouse brain that provide global views of several brain regions, including the hippocampus and cerebellum. The isoforms concentrate in discrete brain regions and we then zoom-in to show distinct patterns of subcellular localization...
January 12, 2017: ELife
https://www.readbyqxmd.com/read/28079060/intranasal-lactoferrin-enhances-%C3%AE-secretase-dependent-amyloid-precursor-protein-processing-via-the-erk1-2-creb-and-hif-1%C3%AE-pathways-in-an-alzheimer-s-disease-mouse-model
#19
Chuang Guo, Zhao-Hui Yang, Shuai Zhang, Rui Chai, Han Xue, Yan-Hui Zhang, Jia-Yi Li, Zhan-You Wang
Growing evidence suggests that lactoferrin (Lf), an iron-binding glycoprotein, is a pleiotropic functional nutrient. Additionally, Lf was recently implicated as a neuroprotective agent. These properties make Lf a valuable therapeutic candidate for the treatment of Alzheimer's disease (AD). However, the mechanisms regulating the physiological roles of Lf in the pathologic condition of AD remain unknown. In the present study, an APPswe/PS1DE9 transgenic mouse model of AD was used. We explored whether intranasal human Lf (hLf) administration could reduce β-amyloid (Aβ) deposition and ameliorate cognitive decline in this AD model...
January 12, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28078614/resistance-exercise-reduces-seizure-occurrence-attenuates-memory-deficits-and-restores-bdnf-signaling-in-rats-with-chronic-epilepsy
#20
Alexandre Aparecido de Almeida, Sérgio Gomes da Silva, Glauber Menezes Lopim, Diego Vannucci Campos, Jansen Fernandes, Francisco Romero Cabral, Ricardo Mario Arida
Epilepsy is a disease characterized by recurrent, unprovoked seizures. Cognitive impairment is an important comorbidity of chronic epilepsy. Human and animal model studies of epilepsy have shown that aerobic exercise induces beneficial structural and functional changes and reduces the number of seizures. However, little is yet understood about the effects of resistance exercise on epilepsy. We evaluated the effects of a resistance exercise program on the number of seizures, long-term memory and expression/activation of signaling proteins in rats with epilepsy...
January 11, 2017: Neurochemical Research
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