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https://www.readbyqxmd.com/read/28106616/lymphocyte-phospho-ser-9-gsk-3%C3%AE-total-gsk-3%C3%AE-protein-levels-ratio-is-not-affected-by-chronic-lithium-or-valproate-treatment-in-euthymic-patients-with-bipolar-disorder
#1
Abed N Azab, Ella Vainer, Galila Agam, Yuly Bersudsky
BACKGROUND: Glycogen synthase kinase-3 (GSK-3) inhibition by lithium has been well established in vitro, but proof that this biochemical effect mediates lithium's beneficial action in patients with bipolar disorder is lacking. We studied whether lymphocyte GSK-3β activity measured indirectly in lithium- or valproate (VPA)-treated euthymic patients with bipolar disorder is different from controls. METHODS: Lymphocyte total and Ser-9-phospho-GSK-3β (inactive) levels were measured by Western blotting...
January 19, 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28101176/anticancer-effects-of-valproic-acid-on-oral-squamous-cell-carcinoma-via-sumoylation-in-vivo-and-in-vitro
#2
Zhijian Sang, Yang Sun, Hong Ruan, Yong Cheng, Xiaojun Ding, Youcheng Yu
Aberrant histone deacetylase (HDAC) has a key role in the neoplastic process associated with the epigenetic patterns of tumor-related genes. The present study was performed to investigate the effects and determine the mechanism of action of the HDAC inhibitor, valproic acid (VPA), on the CAL27 cell line derived from oral squamous cell carcinoma (OSCC). The effects of VPA on the viability of CAL27 cells were investigated using MTT assays. Alterations in the cell cycle and apoptosis were also examined using propidium iodide (PI) and Annexin V-PI assays, and were subequently analyzed by flow cytometry...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28100786/inositol-depletion-induced-by-acute-treatment-of-the-bipolar-disorder-drug-valproate-increases-levels-of-phytosphingosine
#3
Shyamalagauri Jadhav, Sarah Russo, L Ashley Cowart, Miriam L Greenberg
Bipolar disorder (BD) is a severe psychiatric illness affecting ~2% of the world population. Valproate (VPA) and lithium, though widely used for the treatment of BD, are not universally effective. These drugs have been shown to cause inositol depletion, but translating this observation to a specific therapeutic mechanism has been difficult, hampering the development of more effective therapies. We have shown previously in yeast that chronic VPA treatment induces the unfolded protein response due to increasing ceramide levels...
January 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28099388/valproic-acid-mitigates-the-inflammatory-response-and-prevents-acute-respiratory-distress-syndrome-in-a-murine-model-of-escherichia-coli-pneumonia-at-the-expense-of-bacterial-clearance
#4
George Kasotakis, Manuel Galvan, Elizabeth King, Beda Sarkar, Arthur Stucchi, Joseph P Mizgerd, Peter A Burke, Daniel Remick
BACKGROUND: Histone deacetylase inhibitors (HDACI) are members of a family of epigenetic modifying agents with broad anti-inflammatory properties. These anti-inflammatory properties may have important therapeutic implications in Acute Respiratory Distress Syndrome (ARDS). However, administration of HDACI may create an immunosuppressive environment conducive to bacterial growth. Accordingly, the aim of the current study is to investigate the effect of HDACI Valproic Acid (VPA) on host inflammatory response and bacterial burden in a murine model of E...
January 18, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28087055/graft-modification-of-cotton-with-phosphate-group-and-its-application-to-the-enrichment-of-phosphopeptides
#5
Xiao-Mei He, Xi Chen, Bi-Feng Yuan, Yu-Qi Feng
Grafting copolymerization, especially "grafting from" approach, has attracted a great attention for the preparation of cellulose-based materials with various functionalities. In this study, a novel phosphate group-containing cotton fiber-based material, CF-NH2-AZO-p(VPA-x), was successfully synthesized by a "grafting from" radical polymerization approach using vinyl phosphonic acid (VPA) as monomer. The phosphate group content of CF-NH2-AZO-p(VPA-x) could be easily regulated by adjusting the concentration of VPA monomer...
January 9, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28081475/add-on-stiripentol-elevates-serum-valproate-levels-in-patients-with-or-without-concomitant-topiramate-therapy
#6
Toshihiro Jogamoto, Yoshiaki Yamamoto, Mitsumasa Fukuda, Yuka Suzuki, Katsumi Imai, Yukitoshi Takahashi, Yushi Inoue, Yoko Ohtsuka
OBJECTIVE: Stiripentol (STP), valproate (VPA) and topiramate (TPM) are reported to have efficacy for Dravet syndrome. In this study, we sought to elucidate the mechanisms underlying the increased serum VPA concentrations following STP adjunctive therapy in patients with Dravet syndrome. METHODS: Twenty-eight patients with Dravet syndrome (age range, 1-35 years) undergoing combination therapy with VPA and STP were included in this study. We evaluated VPA and clobazam (CLB) serum concentrations before and after add-on STP...
December 26, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28076384/anti-epileptic-drug-combination-efficacy-in-an-in-vitro-seizure-model-phenytoin-and-valproate-lamotrigine-and-valproate
#7
Kim Det Taing, Terence J O'Brien, David A Williams, Chris R French
In this study, we investigated the relative efficacy of different classes of commonly used anti-epileptic drugs (AEDs) with different mechanisms of action, individually and in combination, to suppress epileptiform discharges in an in vitro model. Extracellular field potential were recorded in 450 μm thick transverse hippocampal slices prepared from juvenile Wistar rats, in which "epileptiform discharges" (ED's) were produced with a high-K+ (8.5 mM) bicarbonate-buffered saline solution. Single and dual recordings in stratum pyramidale of CA1 and CA3 regions were performed with 3-5 MΩ glass microelectrodes...
2017: PloS One
https://www.readbyqxmd.com/read/28070260/relationship-between-bone-density-and-biochemical-markers-of-bone-among-two-groups-taking-carbamazepine-and-sodium-valproate-for-epilepsy-in-comparison-with-healthy-individuals-in-yazd
#8
Abolghasem Rahimdel, Ali Dehghan, Mahboubeh Abolhassani Moghadam, Ali Mellat Ardekani
INTRODUCTION: Chronic antiepileptic therapy has been associated with metabolic bone diseases including osteomalacia and osteoporosis. The aim of this study was to determine frequency of changes in biochemical and bone mineral density (BMD) in adults receiving valproaic acid (VPA) & carbamazepine (CBZ). METHODS: In a cross sectional study evaluating adults (age 20-50 y) epileptic patients receiving valproic acid or carbamazepine for at least 2 years. This study was conducted from May 2014 to May 2015 in Shahid Sadoughi Hospital of Yazd University of Medical Science, Yazd, Iran...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28064355/population-pharmacokinetic-models-of-lamotrigine-in-different-age-groups-of-chinese-children-with-epilepsy
#9
Zhong-Bin Zhang, Shuang-Min Ji, Ying Han, Li-Li Zang, Ying-Hui Wang, Wei Lu, Li Wang, Ye Wu
PURPOSE: The study aims to establish population pharmacokinetic (PPK) models of lamotrigine (LTG) in different age groups of epileptic children by nonlinear mixed effect modelling(NONMEM), and provide essential tools and theoretical basis for individualised optimal drug dose. METHODS: Cases of 473 epileptic children were divided into infant, toddler and preschool age (≤6 years) (n = 211), school age (6-12 years) (n = 171) and adolescence age (>12 years) (n = 81)...
January 7, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28060221/valproic-acid-special-considerations-and-targeted-monitoring
#10
Angela Collins-Yoder, Jordan Lowell
Valproic acid (VPA) is a medication used to treat multiple neuroscience conditions. It is an inexpensive and useful medication, with a low incidence of adverse drug events. Nonetheless, optimal clinical outcomes require that a series of screening and laboratory steps be followed before the initiation of VPA therapy. An additional aspect of pharmacovigilance is to recognize clinical patterns signaling genetic traits that preclude VPA, background of the black box warnings, targeted assessments, and laboratory monitoring indicated while on VPA...
February 2017: Journal of Neuroscience Nursing: Journal of the American Association of Neuroscience Nurses
https://www.readbyqxmd.com/read/28055304/synergistic-effect-of-cytokine-induced-killer-cell-with-valproate-inhibits-growth-of-hepatocellular-carcinoma-cell-in-a-mouse-model
#11
Dong Hyeon Lee, Joon Yeul Nam, Young Chang, Hyeki Cho, Seong Hee Kang, Young Youn Cho, EunJu Cho, Jeong-Hoon Lee, Su Jong Yu, Yoon Jun Kim, Jung-Hwan Yoon
OBJECTIVE: Long-term prognosis of hepatocellular carcinoma (HCC) remains poor owing to the lack of treatment options for advanced HCC. Cytokine-induced killer (CIK) cells are ex vivo expanded T lymphocytes expressing both NK- and T-cell markers. CIK cell therapy alone is insufficient for treating advanced HCC. Thus, this study aimed to determine whether treatment with CIK cells combined with valproic acid (VPA) could provide a synergistic effect to inhibit tumor growth in a mouse model of HCC...
January 5, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28055238/valproic-acid-increases-histone-acetylation-and-alters-gene-expression-in-the-donor-cells-but-does-not-improve-the-in-vitro-developmental-competence-of-buffalo-bubalus-bubalis-embryos-produced-by-hand-made-cloning
#12
Naresh L Selokar, Monika Saini, Himanshu Agrawal, Prabhat Palta, Manmohan Singh Chauhan, Radheysham Manik, Suresh Kumar Singla
Use of histone deacetylase inhibitors (HDACis) is believed to improve the developmental competence and quality of cloned embryos produced. We examined the effects of treatment of buffalo fibroblasts with valproic acid (VPA), a HDACi on these cells and on embryos produced from them by hand-made cloning. VPA treatment (1.5, 3.0, or 4.5 mM) altered (p < 0.05) the growth characteristics and relative expression level of HDAC1, DNMT1, DNMT3a, P53, and CASPASE3, and the global level of H3K9/14ac, H4K5ac, and H3K18ac but not H3K27me3 in the cells...
January 5, 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28043150/histone-deacetylase-inhibitors-in-plasma-cell-leukemia-treatment-effect-of-bone-marrow-microenvironment
#13
I Burianova, K Kuzelova, O Mitrovsky, I Spicka, P StOckbauer, M Zackova
In the presented study we analysed the effect of histone deacetylase inhibitors (HDACi) suberoylanilide hydroxamic acid (SAHA) and valproic acid (VPA) on human plasma cell leukemia (PCL) cell line UHKT-944 in the presence of bone marrow microenvironment (BMM). For the analysis, the cells were cultured alone, with bone marrow stromal cells (BMSCs), with extracellular matrix (ECM) components or with interleukin-6, and treated with varied concentrations of SAHA and VPA for 24/48 hours. To study the effect of HDACi, we investigated cell proliferation, apoptosis, cell cycle and changes in selected signalling pathways...
January 3, 2017: Neoplasma
https://www.readbyqxmd.com/read/28041878/epigenetic-modifiers-facilitate-induction-and-pluripotency-of-porcine-ipscs
#14
Jian Mao, Qian Zhang, Wei Deng, Hua Wang, Kai Liu, Haifeng Fu, Qiang Zhao, Xumin Wang, Lin Liu
Inadequate silencing of exogenous genes represents a major obstacle to complete epigenetic reprogramming of porcine-induced pluripotent stem cells (piPSCs) by conventional pluripotency transcription factors (OSKM). We tested the hypothesis that epigenetic modification by active DNA or histone demethylation or by inhibition of histone deacetylase would enhance reprogramming and exogenous gene silencing in piPSCs. piPSCs induced by OSKM in combination with epigenetic factors, specifically Ten-Eleven Translocation (Tet1 or Tet3) or lysine (K)-specific demethylase 3A (Kdm3a), expressed higher levels of Rex1 and other genes representing naive state and exhibited more open chromatin status, compared with those of OSKM controls...
January 10, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28040492/valproic-acid-and-ask1-deficiency-ameliorate-optic-neuritis-and-neurodegeneration-in-an-animal-model-of-multiple-sclerosis
#15
Yuriko Azuchi, Atsuko Kimura, Xiaoli Guo, Goichi Akiyama, Takahiko Noro, Chikako Harada, Atsuko Nishigaki, Kazuhiko Namekata, Takayuki Harada
Optic neuritis, which is an acute inflammatory demyelinating syndrome of the central nervous system, is one of the major complications in multiple sclerosis (MS). Herein, we investigated the therapeutic potential of valproic acid (VPA) on optic neuritis in experimental autoimmune encephalomyelitis (EAE), a mouse model of MS. EAE was induced in C57BL/6 mice by immunization with MOG35-55 and VPA (300mg/kg) was administered via intraperitoneal injection once daily from day 3 postimmunization until the end of the experimental period (day 28)...
December 28, 2016: Neuroscience Letters
https://www.readbyqxmd.com/read/28038682/comparison-of-a-teratogenic-transcriptome-based-predictive-test-based-on-human-embryonic-versus-inducible-pluripotent-stem-cells
#16
Vaibhav Shinde, Sureshkumar Perumal Srinivasan, Margit Henry, Tamara Rotshteyn, Jürgen Hescheler, Jörg Rahnenführer, Marianna Grinberg, Johannes Meisig, Nils Blüthgen, Tanja Waldmann, Marcel Leist, Jan Georg Hengstler, Agapios Sachinidis
BACKGROUND: Human embryonic stem cells (hESCs) partially recapitulate early embryonic three germ layer development, allowing testing of potential teratogenic hazards. Because use of hESCs is ethically debated, we investigated the potential for human induced pluripotent stem cells (hiPSCs) to replace hESCs in such tests. METHODS: Three cell lines, comprising hiPSCs (foreskin and IMR90) and hESCs (H9) were differentiated for 14 days. Their transcriptome profiles were obtained on day 0 and day 14 and analyzed by comprehensive bioinformatics tools...
December 30, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28038386/cognitive-functions-in-children-exposed-to-antiepileptic-drugs-in-utero-study-in-georgia
#17
Sofia Kasradze, Nino Gogatishvili, Giorgi Lomidze, Tamar Ediberidze, Marine Lazariashvili, Ketevan Khomeriki, Shorena Mamukadze, Mariam Metreveli, Tamar Gagoshidze, Nino Tatishvili, Torbjörn Tomson
OBJECTIVE: The cognitive teratogenicity of antiepileptic drugs (AEDs) has gained increasing attention in the last decade. The objective of the current study was to assess the effects of AED fetal exposure on the cognitive development of children of mothers with epilepsy from Georgia in a controlled study taking into consideration major confounding factors. METHODS: A prospective cohort group was formed from children and mothers registered in the Georgian National AED-Pregnancy Registry...
December 27, 2016: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28033307/effect-of-sodium-valproate-on-cognitive-function-and-hippocampus-of-rats-after-convulsive-status-epilepticus
#18
Peng Wu, Siqi Hong, Min Zhong, Yi Guo, Hengsheng Chen, Li Jiang
BACKGROUND The aim of this study was to explore the effect and possible mechanism of sodium valproate (VPA) on the cognitive function and the hippocampus of rats after convulsive status epilepticus (CES). MATERIAL AND METHODS A rat model of CES was established and the Morris water maze was used to observe changes in the cognitive function of the rats after the administration of VPA. Acute hippocampal slices were made to detect field excitatory postsynaptic potential. Western blot analysis was used to test for the expression of CaMKII and p-CaMKII...
December 29, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28030959/physical-activity-and-sedentary-behavior-of-us-immigrant-versus-non-immigrant-adolescents-findings-from-the-next-generation-health-study-data
#19
Wynette Williams, Kaigang Li, Denise Haynie, Bruce Simons-Morton
OBJECTIVE: This study examined associations of physical activity (PA) and sedentary behavior (SB) with adolescents' immigration status and language spoken at home and with friends. METHODS: Participants (N = 2475) were included from Wave 1 of the NEXT Generation Health Study, a nationally representative 10th-grade cohort study starting in 2009. PA included recommended moderate-to-vigorous PA (MVPA) and vigorous PA (VPA); SB included screen viewing and social-media use...
December 29, 2016: Ethnicity & Health
https://www.readbyqxmd.com/read/28009791/deriving-a-gps-monitoring-time-recommendation-for-physical-activity-studies-of-adults
#20
Katelyn M Holliday, Annie Green Howard, Michael Emch, Daniel A Rodríguez, Wayne D Rosamond, Kelly R Evenson
INTRODUCTION: Determining locations of physical activity (PA) is important for surveillance and intervention development, yet recommendations for using location recording tools like Geographic Positioning System (GPS) units are lacking. Specifically, no recommendation exists for the number of days study participants should wear a GPS to reliably estimate PA time spent in locations. METHODS: This study used data from participants (N=224, age 18-85) in five states who concurrently wore an ActiGraph GT1M accelerometer and a Qstarz BT-Q1000X GPS for three consecutive weeks to construct monitoring day recommendations through variance partitioning methods...
December 22, 2016: Medicine and Science in Sports and Exercise
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