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https://www.readbyqxmd.com/read/28445845/the-capacity-and-effectiveness-of-diosmectite-and-charcoal-in-trapping-the-compounds-causing-the-most-frequent-intoxications-in-acute-medicine-a-comparative-study
#1
Michaela Mináriková, Veronika Fojtikova, Eliška Vyskočilová, Jan Sedláček, Milan Šikut, Lucie Borek-Dohalska, Marie Stiborová, Marketa Martinkova
The aim of the study was to compare the adsorption ability of two adsorbent materials, namely diosmectite and activated charcoal towards selected model compounds that are most commonly involved in acute intoxication. Eleven model compounds were selected: acetylsalicylic acid, α-amanitin, amlodipine, digoxin, phenobarbital, ibuprofen, imipramine, carbamazepine, oxazepam, promethazine, and theophylline. Of the tested compounds, promethazine and imipramine were the most effectively adsorbed to diosmectite. Their adsorption to diosmectite (0...
April 17, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28429110/inhibition-of-the-crf1-receptor-influences-the-activity-of-antidepressant-drugs-in-the-forced-swim-test-in-rats
#2
Andrzej Wróbel, Anna Serefko, Aleksandra Szopa, Karol Rojek, Ewa Poleszak, Krystyna Skalicka-Woźniak, Jarosław Dudka
Hyperactivity of the hypothalamic-pituitary-adrenal axis (HPA) and impairment of the central corticotropin-releasing factor (CRF) system are factors in the pathogenesis of depression. Though several antagonists of the CRF1 receptor were effective in the recognized behavioral tests for antidepressant activity, there is still little information on the potential interactions between CRF1 receptor inhibitors and conventional antidepressant therapy. The aim of our study was to assess the influence of SN003, a CRF1 receptor blocker, on the activity of imipramine and fluoxetine in the forced swim test (FST) in rats which presented some signs of depression...
April 20, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28425449/the-impact-of-treatments-for-depression-on-the-dynamic-network-structure-of-mental-states-two-randomized-controlled-trials
#3
Evelien Snippe, Wolfgang Viechtbauer, Nicole Geschwind, Annelie Klippel, Peter de Jonge, Marieke Wichers
Evidence is growing that vulnerability to depression may be characterized by strong negative feedback loops between mental states. It is unknown whether such dynamics between mental states can be altered by treatment. This study examined whether treatment with imipramine or treatment with Mindfulness-Based Cognitive Therapy (MBCT) reduces the connectivity within dynamic networks of mental states in individuals with depressive symptoms. In the Imipramine trial, individuals diagnosed with major depression were randomized to imipramine treatment or placebo-pill treatment (n = 50)...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28414989/role-of-cortical-alpha-2-adrenoceptors-in-alcohol-withdrawal-induced-depression-and-tricyclic-antidepressants
#4
Bruk Getachew, Sheketha R Hauser, Antonei B Csoka, Robert E Taylor, Yousef Tizabi
INTRODUCTION: Although a role for alpha-2 adrenoceptors (alpha-2 ARs) in alcohol use disorder (AUD) and depression is suggested, very little information on a direct interaction between alcohol and these receptors is available. METHODS: In this study adult female Wistar and Wistar-Kyoto (WKY) rats, a putative animal model of depression, were exposed to alcohol vapor 3h daily for 10days (blood alcohol concentration ∼150mg%) followed by daily injection of 10mg/kg of imipramine (IMP, a selective norepinephrine NE/serotonin reuptake inhibitor) or nomifensine (NOMI, a selective NE/dopamine reuptake inhibitor)...
April 4, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28408194/low-dose-imipramine-for-multiple-functional-somatic-syndromes
#5
Andrew Moore, Dominic Aldington
No abstract text is available yet for this article.
April 10, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28408193/imipramine-versus-placebo-for-multiple-functional-somatic-syndromes-stress-3-a-double-blind-randomised-study
#6
Johanne L Agger, Andreas Schröder, Lise K Gormsen, Jens S Jensen, Troels S Jensen, Per K Fink
BACKGROUND: Functional somatic syndromes, including chronic fatigue syndrome or irritable bowel syndrome, often co-exist. Treatment guidelines supported by high quality evidence exist for most functional somatic syndromes, but are lacking for multiple comorbid functional somatic syndromes. We aimed to assess the effect of the tricyclic antidepressant, imipramine, in patients with multiple functional somatic syndromes defined by the criteria for multiorgan bodily distress syndrome, a unifying diagnosis that encompasses most functional somatic syndromes and somatoform disorders...
April 10, 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28398601/antidepressant-imipramine-protects-bupivacaine-induced-neurotoxicity-in-dorsal-root-ganglion-neurons-through-co-activation-of-trka-and-trkb
#7
Jianrong Guo, Huan Wang, Qiang Tao, Shiyu Sun, Li Liu, Jianping Zhang, Dawei Yang
PURPOSE: In our work, we used an in vitro culture model to investigate whether antidepressant imipramine (Ip) may protect bupivacaine (Bv)-induced neurotoxicity in mouse dorsal root ganglion (DRG). METHODS: Adult mouse DRG was treated with 5 mM Bv in vitro to induce neurotoxicity. DRG was then pre-treated with Ip, prior to Bv, to examine its effects on protecting Bv-induced DRG apoptosis and neurite degeneration. Ip-induced dynamic changes in Trk receptors, including TrkA/B/C and phosphor (p-)TrkA/B/C, were examined by qPCR and western blot...
April 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28375082/co-treatment-with-imipramine-averted-haloperidol-instigated-tardive-dyskinesia-association-with-serotonin-in-brain-regions
#8
Noreen Samad, Farzana Yasmin, Darakhshan Jabeen Haleem
Outcome of imipramine (IMI) treatment was scrutinized on progression of haloperidol instigated tardive dyskinesia (TD). 0.2 mg/kg/rat dosage of haloperidol provided orally to rats for 2 weeks enhanced vacuous chewing movements that escalated when the process proceeded for 5 weeks. Following 2 weeks co-injection 5 mg/kg dosage of IMI was diminished haloperidol-instigated VCMs and fully averted following five weeks. The potency of 8-OH-DPAT-instigated locomotor activity exhibited higher in saline+haloperidol treated rats while not observed in IMI+ haloperidol treated rats...
November 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28366566/chromatographic-studies-of-drug-interactions-with-alpha1-acid-glycoprotein-by-ultrafast-affinity-extraction-and-peak-profiling
#9
Sandya Beeram, Cong Bi, Xiwei Zheng, David S Hage
Interactions with serum proteins such as alpha1-acid glycoprotein (AGP) can have a significant effect on the behavior and pharmacokinetics of drugs. Ultrafast affinity extraction and peak profiling were used with AGP microcolumns to examine these processes for several model drugs (i.e., chlorpromazine, disopyramide, imipramine, lidocaine, propranolol and verapamil). The association equilibrium constants measured for these drugs with soluble AGP by ultrafast affinity extraction were in the general range of 10(4)-10(6)M(-1) at pH 7...
May 12, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28364697/antidepressant-like-effect-of-1-2-3-4-tetrahydroisoquinoline-and-its-methyl-derivative-in-animal-models-of-depression
#10
Edyta Możdżeń, Agnieszka Wąsik, Irena Romańska, Jerzy Michaluk, Lucyna Antkiewicz-Michaluk
BACKGROUND: Most of the currently used antidepressant drugs are monoamine-based compounds, acting by the inhibition of re-uptake or metabolism of noradrenaline (NA) and/or serotonin (5-HT), because these neurotransmitters play a key role in the pathophysiology of depression. The aim of this study was to investigate the potential antidepressant-like activity of an endogenous amine, 1,2,3,4-tetrahydroisoquinoline (TIQ) and its close derivative, 1-methyl-1,2,3,4-tetrahydroisoquinoline (1MeTIQ)...
February 8, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28351667/pyrilamine-sensitive-proton-coupled-organic-cation-h-oc-antiporter-for-brain-specific-drug-delivery
#11
Xinyi Wang, Bowen Qi, Huifang Su, Jianbo Li, Xun Sun, Qin He, Yao Fu, Zhirong Zhang
Blood-brain barrier (BBB) represents the greatest challenge that hampers therapeutic molecules entering the brain. Here, we described a novel brain-specific delivery strategy targeting to pyrilamine-sensitive H(+)/OC antiporter to facilitate therapeutic molecules cross the BBB and penetrate into the brain. In this study, four cyclic tertiary amines were selected as the brain-targeting moieties to modify naproxen (NP), a non-steroidal anti-inflammatory drug. The obtained NP conjugates displayed cell uptake efficiencies over 144-fold higher than that of unmodified NP in endothelial cells...
March 27, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28336340/basal-prolactin-levels-in-rat-plasma-correlates-with-response-to-antidepressant-treatment-in-animal-model-of-depression
#12
A Faron-Górecka, M Kuśmider, K Szafran-Pilch, M Kolasa, D Żurawek, P Gruca, M Papp, J Solich, P Pabian, M Dziedzicka-Wasylewska
Prolactin (PRL) has been shown to be altered by psychotropic drugs, including antidepressant drugs (ADs). Many studies have focused on the response to antidepressant treatment (especially related to the serotonergic system) using the fenfluramine test (PRF), however some data suggest lack of correlation between PRF and prediction of clinical response to ADs. In our study we have investigated the hypothesis that basal plasma level of prolactin is a better predictor of antidepressant treatment. We have used Chronic Mild Stress (CMS) - the animal model of depression...
March 20, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28291258/adult-hippocampal-neuroplasticity-triggers-susceptibility-to-recurrent-depression
#13
N D Alves, J S Correia, P Patrício, A Mateus-Pinheiro, A R Machado-Santos, E Loureiro-Campos, M Morais, J M Bessa, N Sousa, L Pinto
Depression is a highly prevalent and recurrent neuropsychiatric disorder associated with alterations in emotional and cognitive domains. Neuroplastic phenomena are increasingly considered central to the etiopathogenesis of and recovery from depression. Nevertheless, a high number of remitted patients experience recurrent episodes of depression, remaining unclear how previous episodes impact on behavior and neuroplasticity and/or whether modulation of neuroplasticity is important to prevent recurrent depression...
March 14, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28282295/effects-of-luteolin-and-luteolin-morphine-co-administration-on-acute-and-chronic-pain-and-sciatic-nerve-ligated-induced-neuropathy-in-mice
#14
Mahmoud Hashemzaei, Mina Abdollahzadeh, Mehrdad Iranshahi, Ebrahim Golmakani, Ramin Rezaee, Kaveh Tabrizian
Background Neuropathic pain (NP) is a common condition accompanied by nerve injury. To date, there is no definite treatment approved for this disorder. In addition, many drugs that are used for NP cause adverse reactions. Luteolin is a naturally occurring flavonoid with diverse pharmacological properties such as anti-inflammatory, antioxidant and anticancer. We sought to investigate luteolin effects on chronic, acute and neuropathic pain as well as its potential to increase morphine anti-nociceptive effects in mice...
March 1, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28279926/determination-of-drugs-in-plasma-samples-by-disposable-pipette-extraction-with-c18-bsa-phase-and-liquid-chromatography-tandem-mass-spectrometry
#15
Mônia Ap Lemos Pinto, Israel D de Souza, Maria Eugênia C Queiroz
This work describes restricted access material (RAM) constituted of porous octadecylsilane particles with the outer surface covered with bovine serum albumin (C18-BSA) as a stationary phase to extract drugs from plasma samples by disposable pipette extraction (DPX) for further analysis by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The C18-BSA phase simultaneously excluded macromolecules by chemical diffusion barrier (BSA network) and enrichment of the interior phase (C18) with drug traces by sorption...
May 30, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28272120/the-impact-of-serum-drug-concentration-on-the-efficacy-of-imipramine-pregabalin-and-their-combination-in-painful-polyneuropathy
#16
Søren H Sindrup, Jakob V Holbech, Flemming W Bach, Nanna B Finnerup, Kim Brøsen, Troels S Jensen
OBJECTIVE: The serum concentration-effect relation was explored for first line drugs in neuropathic pain and aimed to determine if efficacy could be increased. METHODS: Data from a randomized, placebo-controlled, cross-over trial on imipramine, pregabalin and their combination in painful polyneuropathy were used. Treatment periods were of 4 weeks' duration, outcome was the weekly median of daily pain rated by a 0-10 numeric scale, and drug concentrations were determined by high-performance liquid chromatography...
March 7, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28252969/in-vitro-and-in-silico-tools-to-assess-extent-of-cellular-uptake-and-lysosomal-sequestration-of-respiratory-drugs-in-human-alveolar-macrophages
#17
Ayşe Ufuk, Frauke Assmus, Laura Francis, Jonathan Plumb, Valeriu Damian, Michael Gertz, J Brian Houston, Aleksandra Galetin
Accumulation of respiratory drugs in human alveolar macrophages (AMs) has not been extensively studied in vitro and in silico despite its potential impact on therapeutic efficacy and/or occurrence of phospholipidosis. The current study aims to characterize the accumulation and subcellular distribution of drugs with respiratory indication in human AMs and to develop an in silico mechanistic AM model to predict lysosomal accumulation of investigated drugs. The data set included 9 drugs previously investigated in rat AM cell line NR8383...
April 3, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28238856/gemcitabine-kills-proliferating-endothelial-cells-exclusively-via-acid-sphingomyelinase-activation
#18
Albert J van Hell, Adriana Haimovitz-Friedman, Zvi Fuks, William D Tap, Richard Kolesnick
Gemcitabine is a widely-used anti-cancer drug with a well-defined mechanism of action in normal and transformed epithelial cells. However, its effect on endothelial cells is largely unknown. Acid sphingomyelinase (ASMase) is highly expressed in endothelial cells, converting plasma membrane sphingomyelin to pro-apoptotic ceramide upon activation by diverse stresses. In the current study, we investigated gemcitabine impact in primary cultures of endothelial cells. We find baseline ASMase increases markedly in bovine aortic endothelial cells (BAEC) as they transit from a proliferative to a confluent growth-arrested state...
February 24, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28237034/machine-learning-and-docking-models-for-mycobacterium-tuberculosis-topoisomerase-i
#19
Sean Ekins, Adwait Anand Godbole, György Kéri, Lászlo Orfi, János Pato, Rajeshwari Subray Bhat, Rinkee Verma, Erin K Bradley, Valakunja Nagaraja
There is a shortage of compounds that are directed towards new targets apart from those targeted by the FDA approved drugs used against Mycobacterium tuberculosis. Topoisomerase I (Mttopo I) is an essential mycobacterial enzyme and a promising target in this regard. However, it suffers from a shortage of known inhibitors. We have previously used computational approaches such as homology modeling and docking to propose 38 FDA approved drugs for testing and identified several active molecules. To follow on from this, we now describe the in vitro testing of a library of 639 compounds...
March 2017: Tuberculosis
https://www.readbyqxmd.com/read/28225710/chronic-stress-exacerbates-neuropathic-pain-via-the-integration-of-stress-affect-related-information-with-nociceptive-information-in-the-central-nucleus-of-the-amygdala
#20
Ming-Jia Li, Ling-Yu Liu, Lin Chen, Jie Cai, You Wan, Guo-Gang Xing
Exacerbation of pain by chronic stress and comorbidity of pain with stress-related psychiatric disorders, including anxiety and depression, represent significant clinical challenges. However, the underlying mechanisms still remain unclear. Here, we investigated whether chronic forced swim stress (CFSS)-induced exacerbation of neuropathic pain is mediated by the integration of stress-affect-related information with nociceptive information in the central nucleus of the amygdala (CeA). We first demonstrated that CFSS indeed produces both depressive-like behaviors and exacerbation of spared nerve injury (SNI)-induced mechanical allodynia in rats...
April 2017: Pain
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