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https://www.readbyqxmd.com/read/29332813/fast-and-easy-extraction-of-antidepressants-from-whole-blood-using-ionic-liquids-as-extraction-solvent
#1
Marieke De Boeck, Lisa Dubrulle, Wim Dehaen, Jan Tytgat, Eva Cuypers
This study aims to prove that ionic liquids (ILs) can be used as extraction solvents in a liquid-liquid microextraction, coupled to LC-MS/MS, for the quantification of a large group of antidepressants in whole blood samples. The sample preparation procedure consisted of adding 1.0mL aqueous buffer pH 3.0 and 60µL of IL (1-butyl-3-methylimidazolium hexafluorophosphate) to 1.0mL whole blood. Subsequently, a 5-min rotary mixing step was performed followed by centrifugation. The lower IL phase was collected, diluted 1:10 in methanol and 10µL was injected into the LC-MS/MS...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29307665/effects-of-ketamine-on-vocal-impairment-gait-changes-and-anhedonia-induced-by-bilateral-6-ohda-infusion-into-the-substantia-nigra-pars-compacta-in-rats-therapeutic-implications-for-parkinson-s-disease
#2
Débora Dalla Vecchia, Luiz Kae Sales Kanazawa, Etiéli Wendler, Palloma de Almeida Soares Hocayen, Estevan Bruginski, Francinete Ramos Campos, Cristina Aparecida Jark Stern, Maria Aparecida Barbato Frazão Vital, Edmar Miyoshi, Markus Wöhr, Rainer K W Schwarting, Roberto Andreatini
Parkinson's disease is a chronic neurodegenerative disorder characterized by cardinal motor features, such as bradykinesia, but also vocal deficits (e.g. difficulties to articulate words and to keep the tone of voice) and depression. In the present study, rats with bilateral 6-hydroxydopamine lesion of the substantia nigra pars compacta were evaluated for changes in the emission of 50-kHz ultrasonic vocalizations, gait impairment (catwalk test), and depressive-like behaviour (sucrose preference test).Furthermore, we evaluated the effect of repeated treatment (28 days) with ketamine (5, 10, and 15 mg/kg, ip, once per week) or imipramine (15 mg/kg, ip, daily)...
January 4, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29307307/role-of-cationic-drug-sensitive-transport-systems-at-the-blood-cerebrospinal-fluid-barrier-in-para-tyramine-elimination-from-rat-brain
#3
Shin-Ichi Akanuma, Yuhei Yamazaki, Yoshiyuki Kubo, Ken-Ichi Hosoya
BACKGROUND: para-Tyramine (p-TA) is a biogenic amine which is involved in multiple neuronal signal transductions. Since the concentration of p-TA in dog cerebrospinal fluid (CSF) has been reported to be greater than that in plasma, it is proposed that clearance of cerebral p-TA is important for normal function. The purpose of this study was to examine the role of the blood-brain barrier and blood-cerebrospinal fluid barrier (BCSFB) in p-TA clearance from the brain. METHODS: In vivo [3H]p-TA elimination from rat cerebral cortex and from CSF was examined after intracerebral and intracerebroventricular administration, respectively...
January 8, 2018: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/29289668/involvement-of-the-dopaminergic-system-in-the-antidepressant-like-effect-of-the-lectin-isolated-from-the-red-marine-alga-solieria-filiformis-in-mice
#4
Ticiana Monteiro Abreu, Valdécio Silvano Monteiro, Ana Beatriz Souza Martins, Felipe Barros Teles, Renata Line da Conceição Rivanor, Érika Freitas Mota, Danielle S Macedo, Silvânia Maria Mendes de Vasconcelos, José Eduardo Ribeiro Honório Júnior, Norma Maria Barros Benevides
This study aimed at evaluating the antidepressant-like action of the marine alga Solieria filiformis lectin (SfL) and to investigate the participation of the monoaminergic system in this action. For this, male Swiss mice (n=10) were pretreated with intravenous injections (i.v.) of SfL (1, 3 or 9mg/kg) and submitted to open field (OFT), tail suspension (TST), forced swimming (FST), elevated plus-maze (EPMT) and hole-board tests (HBT). As controls, mice received sterile saline (i.v.), imipramine (10 or 30mg/kg; intraperitoneally - i...
December 28, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29203112/suitability-of-1-hexyl-3-methylimidazolium-ionic-liquids-for-the-analysis-of-pharmaceutical-formulations-containing-tricyclic-antidepressants
#5
S Calabuig-Hernández, E Peris-García, M C García-Alvarez-Coque, M J Ruiz-Angel
The reversed-phase chromatographic behaviour of six tricyclic antidepressants (amitryptiline, clomipramine, doxepin, imipramine, nortryptiline and maprotiline) was examined in this work with acetonitrile-water mobile phases, in the absence and presence of the ionic liquids 1-hexyl-3-methylimidazolium chloride and 1-hexyl-3-methylimidazolium tetrafluoroborate, which have interesting features for the separation of basic compounds, in terms of peak shape combined with reduced retention. Tricyclic antidepressants are low polarity drugs that strongly associate to the alkyl chains of conventional stationary phases...
November 27, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29196145/effects-of-imipramine-on-cytokines-panel-in-the-rats-serum-during-the-drug-treatment-and-discontinuation
#6
M Kuśmider, A Faron-Górecka, P Pabian, J Solich, M Szlachta, M Kolasa, D Żurawek, J Wójcikowski, W Daniel, M Dziedzicka-Wasylewska
Time dependent sensitization (TDS) - phenomenon described originally by Chiodo and Antelman (1980) in context of dopamine receptors, refers to cascade of events that continue to develop in the organism, after the initiating stimulus is no longer available. Treatment could be recognized as such a initiating stimulus (in case of depression, example of electroconvulsive therapy would be obvious, but some aspects of pharmacotherapy too). The process leads to improvement, but, on the other hand, phenomena of kindling in recurrent depression is well known (more relapses and therapies make heavier and longer lasting subsequent episodes)...
November 28, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/29176952/modulation-of-neurogenesis-through-the-promotion-of-energy-production-activity-is-behind-the-antidepressant-like-effect-of-colonial-green-alga-botryococcus-braunii
#7
Kazunori Sasaki, Mahmoud B Othman, Mikihide Demura, Makoto Watanabe, Hiroko Isoda
Algae have been recognized as important resources providing functional components due to their capacity to exert beneficial effects on health. Therefore, there is increasing interest in investigating the biological activity of algae. In this study, we evaluated the antidepressant-like effect of the administration of 100 mg/kg/day of the ethanol extract of colonial green alga Botryococcus braunii (EEB) for 14 consecutive days in the forced swimming test (FST)-induced depression in imprinting control region (ICR) mice...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29168240/citrus-essential-oils-inhalation-by-mice-behavioral-testing-gcms-plasma-analysis-corticosterone-and-melatonin-levels-evaluation
#8
Adriana Nunes Wolffenbüttel, Amanda Zamboni, Gabriela Becker, Maíra Kerpel Dos Santos, Bruna Tassi Borille, Kristiane de Cássia Mariotti, Ana Claudia Fagundes, Janaína Lucas de Oliveira Salomón, Vanessa Rodrigues Coelho, Leire Virto Ruiz, Viviane de Moura Linck, Eliane Dallegrave, Pilar Cano, Ana Isabel Esquifino, Mirna Bainy Leal, Renata Pereira Limberger
The use of orange essential oils (EOs) as a complementary treatment is very common in Brazilian popular culture. The levels of melatonin (MEL) and corticosterone (CORT) hormones were investigated simultaneously, by the Luminex™ immunoassay system in mice plasma, after Citrus aurantium and Citrus sinensis EOs inhalation for 30 min. The plasma was analyzed by headspace through gas chromatography coupled to mass spectrometry for investigation of the EO components. Mice were submitted to behavioral testing to research anxiolytic-like, sedative, and antidepressant-like effects...
November 23, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29151391/repeated-treatment-with-nitric-oxide-synthase-inhibitor-attenuates-learned-helplessness-development-in-rats-and-increases-hippocampal-bdnf-expression
#9
Laura Alves Stanquini, Caroline Biojone, Francisco Silveira Guimarães, Sâmia Regiane Joca
BACKGROUND: Nitric oxide synthase (NOS) inhibitors induce antidepressant-like effects in animal models sensitive to acute drug treatment such as the forced swimming test. However, it is not yet clear if repeated treatment with these drugs is required to induce antidepressant-like effects in preclinical models. OBJECTIVE: The aim of this study was to test the effect induced by acute or repeated (7 days) treatment with 7-nitroindazole (7-NI), a preferential inhibitor of neuronal NOS, in rats submitted to the learned helplessness (LH) model...
November 20, 2017: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/29150635/one-pot-synthesis-of-trifunctional-chitosan-edta-%C3%AE-cyclodextrin-polymer-for-simultaneous-removal-of-metals-and-organic-micropollutants
#10
Feiping Zhao, Eveliina Repo, Dulin Yin, Li Chen, Simo Kalliola, Juntao Tang, Evgenia Iakovleva, Kam Chiu Tam, Mika Sillanpää
The global contamination of water resources with inorganic and organic micropollutants, such as metals and pharmaceuticals, poses a critical threat to the environment and human health. Herein, we report on a bio-derived chitosan-EDTA-β-cyclodextrin (CS-ED-CD) trifunctional adsorbent fabricated via a facile and green one-pot synthesis method using EDTA as a cross-linker, for the adsorption of toxic metals and organic micropollutants from wastewater. In this system, chitosan chain is considered as the backbone, and the immobilized cyclodextrin cavities capture the organic compounds via host-guest inclusion complexation, while EDTA-groups complex metals...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29136602/saffron-in-the-treatment-of-depression-anxiety-and-other-mental-disorders-current-evidence-and-potential-mechanisms-of-action
#11
REVIEW
Mojtaba Shafiee, Soheil Arekhi, Alireza Omranzadeh, Amirhossein Sahebkar
BACKGROUND: Depression and anxiety are two common mental health problems with high economic and social costs. Currently, a number of treatments are available for patients with depression and anxiety disorders such as psychotherapy, electroconvulsive therapy and antidepressant drugs. Due to safety concerns, adverse effects, limited efficacy and low tolerability associated with many antidepressant and anti-anxiety medications, identification of novel agents with less toxicity and more favorable outcome is warranted...
November 7, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29136551/efficient-and-relatively-safe-emulsification-microextraction-using-a-deep-eutectic-solvent-for-influential-enrichment-of-trace-main-anti-depressant-drugs-from-complicated-samples
#12
Ahmad Ghoochani Moghadam, Maryam Rajabi, Alireza Asghari
In this research work, an efficient, facile, prompt, and relatively safe enrichment procedure, named as air agitated-emulsification microextraction based on a low density-deep eutectic solvent (AA-EME-LD-DES), was applied for the first time to separate trace amounts of the drugs escitalopram, desipramine, and imipramine from complex sample solutions. This bio-degradable and cheap choline chloride-based extracting agent was readily prepared by the easy blending process at the ambient temperature, resulting in a eutectic liquid mixture with distinct features...
September 28, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29125130/acid-sphingomyelinase-inhibitors-imipramine-and-zoledronic-acid-increase-skeletal-muscle-tissue-sensitivity-to-insulin-action-at-old-age
#13
Loay Kh M Hassouneh, Olga A Timofiychuk, Nataliya A Babenko
Malfunction of skeletal muscles and dysregulated turnover of sphingolipids in the insulin responsive tissues have been determined at old age. Present article investigates the role of acid sphingomyelinase (SMase)-dependent ceramide accumulation in reduction of the skeletal muscle sensitivity to insulin action at old age. The 3-, 12- and 24-month-old Wistar male rats were used in the experiments. The progressive increase of ceramide content and ceramide/sphingomyeline (SM) ratio was determined in the extensor digitorum longus (EDL) muscle during aging of rats...
November 10, 2017: General Physiology and Biophysics
https://www.readbyqxmd.com/read/29121138/imipramine-induced-hyperpigmentation
#14
Lindsay M Bicknell, Courtney L McFaddin, Martin Fernandez, Palak Parekh
Imipramine is a tricyclic medication that has been used for the treatment of depression and other mood disorders. Although rare, a slate gray discoloration of sun-exposed skin may occur in patients taking this medication. We present the case of a 63-year-old woman who had been taking imipramine for depression for more than 20 years when she developed a bluish gray discoloration on the face and neck that was diagnosed as imipramine-induced hyperpigmentation based on histopathology and clinical history. A number of other drugs that may cause hyperpigmentation also are reviewed as well as their histopathologic staining characteristics...
September 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/29117851/estimating-individual-benefits-of-medical-or-behavioral-treatments-in-severely-ill-patients
#15
Francisco J Diaz
There is a need for statistical methods appropriate for the analysis of clinical trials from a personalized-medicine viewpoint as opposed to the common statistical practice that simply examines average treatment effects. This article proposes an approach to quantifying, reporting and analyzing individual benefits of medical or behavioral treatments to severely ill patients with chronic conditions, using data from clinical trials. The approach is a new development of a published framework for measuring the severity of a chronic disease and the benefits treatments provide to individuals, which utilizes regression models with random coefficients...
January 1, 2017: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/29116077/convenient-iron-catalyzed-reductive-aminations-without-hydrogen-for-selective-synthesis-of-n-methylamines
#16
Kishore Natte, Helfried Neumann, Rajenahally V Jagadeesh, Matthias Beller
N-Methylated amines play an important role in regulating the biological and pharmaceutical properties of all kinds of life science molecules. In general, this class of compounds is synthesized via reductive amination reactions using high pressure of molecular hydrogen. Thus, on laboratory scale especially in drug discovery, activated (toxic) methyl compounds such as methyl iodide and dimethyl sulfate are still employed, which also generate significant amounts of waste. Therefore, the development of more convenient and operationally simple processes for the synthesis of advanced N-methylamines is highly desired...
November 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/29111406/panic-like-escape-response-elicited-in-mice-by-exposure-to-co2-but-not-hypoxia
#17
Ailton Spiacci, Heloisa H Vilela-Costa, Ana Beatriz Sant'Ana, Gabriel Gripp Fernandes, Alana Tercino Frias, Glauber S Ferreira da Silva, José Antunes-Rodrigues, Hélio Zangrossi
Exposure to elevated concentrations of CO2 or hypoxia has been widely used in psychiatric research as a panic provoking stimulus. However, the use of these respiratory challenges to model panic-like responses in experimental animals has been less straightforward. Little data is available, from behavioral and endocrine perspectives, to support the conclusion that a marked aversive situation, such as that experienced during panic attacks, was evoked in these animals. We here compared the behavioral responses of male CB57BL/6 mice during exposure to 20% CO2 or 7% O2 and its consequence on plasma levels of corticosterone...
October 28, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29101602/garcinia-mangostana-linn-displays-antidepressant-like-and-pro-cognitive-effects-in-a-genetic-animal-model-of-depression-a-bio-behavioral-study-in-the-flinders-sensitive-line-rat
#18
Inge Oberholzer, Marisa Möller, Brendan Holland, Olivia M Dean, Michael Berk, Brian H Harvey
There is abundant evidence for both disorganized redox balance and cognitive deficits in major depressive disorder (MDD). Garcinia mangostana Linn (GM) has anti-oxidant activity. We studied the antidepressant-like and pro-cognitive effects of raw GM rind in Flinders Sensitive Line (FSL) rats, a genetic model of depression, following acute and chronic treatment compared to a reference antidepressant, imipramine (IMI). The chemical composition of the GM extract was analysed for levels of α- and γ-mangostin...
November 3, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29100969/imipramine-for-refractory-daytime-incontinence-in-the-pediatric-population
#19
Israel Franco, Angela M Arlen, Therese Collett-Gardere, Paul F Zelkovic
INTRODUCTION AND OBJECTIVE: Lower urinary tract (LUT) and voiding dysfunction constitute a large percentage of pediatric urology referrals. Children with urinary incontinence unresponsive to behavioral modifications and traditional pharmacotherapy including anticholinergics and alpha blockers remain a challenge. We evaluated the impact of imipramine on treatment outcomes in children with refractory incontinence. STUDY DESIGN: Children ≤18 years of age with refractory non-neurogenic daytime incontinence prescribed imipramine were identified...
October 9, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29079874/study-on-the-effect-of-emd386088-a-5-ht6-receptor-partial-agonist-in-enhancing-the-anti-immobility-action-of-some-antidepressants-in-rats
#20
Magdalena Jastrzębska-Więsek, Agata Siwek, Anna Partyka, Marcin Kołaczkowski, Maria Walczak, Magdalena Smolik, Gniewomir Latacz, Katarzyna Kieć-Kononowicz, Anna Wesołowska
The effect of some antidepressants co-administered with EMD386088 in the modified forced swim test in rats was investigated. Additionally, the pharmacokinetics, metabolic stability, and the effect of EMD386088 on P450 cytochromes were determined. Intraperitoneal (i.p.) coadministration of EMD386088 (2.5 mg/kg) and imipramine (15 mg/kg), reboxetine (5 mg/kg), moclobemide (10 mg/kg), or bupropion (10 mg/kg) evoked significant antidepressant-like activity, whereas no effect was observed after joint administration of EMD386088 with s-citalopram (10 mg/kg)...
October 27, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
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