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Mirtazapine

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https://www.readbyqxmd.com/read/28815598/lpa1-is-a-key-mediator-of-intracellular-signalling-and-neuroprotection-triggered-by-tetracyclic-antidepressants-in-hippocampal-neurons
#1
Maria C Olianas, Simona Dedoni, Pierluigi Onali
Both lysophosphatidic acid (LPA) and antidepressants have been shown to affect neuronal survival and differentiation, but whether LPA signalling participates in the action of antidepressants is still unknown. In the present study we examined the role of LPA receptors in the regulation of ERK1/2 activity and neuronal survival by the tetracyclic antidepressants mianserin and mirtazapine in hippocampal neurons. In HT22 immortalized hippocampal cells antidepressants and LPA induced a time- and concentration-dependent stimulation of ERK1/2 phosphorylation...
August 16, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28803926/differences-in-associations-of-antidepressants-and-hospitalization-due-to-hyponatremia
#2
Shermineh Farmand, Jonatan Lindh, Jan Calissendorff, Jakob Skov, Henrik Falhammar, David Nathanson, Buster Mannheimer
Background Selective serotonin reuptake inhibitors (SSRIs) and other antidepressants are important as a cause for hyponatremia. However, most studies have focused on the effect on sodium levels regardless of clinical symptoms or been too small to be able to discriminate between the effects of specific antidepressant drugs. The objective of the present study was to investigate the association between different groups of antidepressants and the risk of hospitalisation due to hyponatremia. Methods In this register based case-control study of patients in the general Swedish population we identified 14 359 individuals with a main diagnosis of hyponatremia...
August 10, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28803208/n-glucuronidation-catalyzed-by-ugt1a4-and-ugt2b10-in-human-liver-microsomes-assay-optimization-and-substrate-identification
#3
Danyi Lu, Qian Xie, Baojian Wu
N-glucuronidation is an important pathway for metabolism and disposition of tertiary amines in humans. This reaction is mainly catalyzed by the enzymes UGT1A4 and UGT2B10. However, the metabolic patterns of UGT1A4- and UGT2B10-mediated N-glucuronidation are not fully clear. In this study, we first optimized in vitro reaction conditions for N-glucuronidation by using specific substrates (i.e., trifluoperazine for UGT1A4, cotinine and amitriptyline for UGT2B10). Furthermore, we found that hepatic N-glucuronidation showed significant species differences...
August 4, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28791566/effects-of-antidepressants-on-sleep
#4
REVIEW
Adam Wichniak, Aleksandra Wierzbicka, Małgorzata Walęcka, Wojciech Jernajczyk
PURPOSE OF REVIEW: The aim of this review article was to summarize recent publications on effects of antidepressants on sleep and to show that these effects not only depend on the kind of antidepressant drugs but are also related to the dose, the time of drug administration, and the duration of the treatment. RECENT FINDINGS: Complaints of disrupted sleep are very common in patients suffering from depression, and they are listed among diagnostic criteria for this disorder...
August 9, 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28769859/adverse-effects-of-antidepressants-for-chronic-pain-a-systematic-review-and-meta-analysis
#5
Carina Riediger, Tibor Schuster, Kristian Barlinn, Sarah Maier, Jürgen Weitz, Timo Siepmann
BACKGROUND: Antidepressants are widely used in the treatment of chronic pain. Applied doses are lower than those needed to unfold an antidepressive effect. While efficacy of antidepressants for chronic pain has been reported in large randomized-controlled trials (RCT), there is inconsistent data on adverse effects and tolerability. We aimed at synthesizing data from RCT to explore adverse effect profiles and tolerability of antidepressants for treatment of chronic pain. METHODS: Systematic literature research and meta-analyses were performed regarding side effects and safety of different antidepressants in the treatment of chronic pain according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28755104/the-effects-of-intranasal-esketamine-84-mg-and-oral-mirtazapine-30-mg-on-on-road-driving-performance-a-double-blind-placebo-controlled-study
#6
Aurora J A E van de Loo, Adriana C Bervoets, Loes Mooren, Noor H Bouwmeester, Johan Garssen, Rob Zuiker, Guido van Amerongen, Joop van Gerven, Jaskaran Singh, Peter Van der Ark, Maggie Fedgchin, Randall Morrison, Ewa Wajs, Joris C Verster
RATIONALE: The purpose of this study is to evaluate the single dose effect of intranasal esketamine (84 mg) compared to placebo on on-road driving performance. Mirtazapine (oral, 30 mg) was used as a positive control, as this antidepressant drug is known to negatively affect driving performance. METHODS: Twenty-six healthy volunteers aged 21 to 60 years were enrolled in this study. In the evening, 8 h after treatment administration, participants conducted the standardized 100-km on-road driving test...
July 28, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28718182/driving-under-the-influence-of-antidepressants-a-systematic-review-and-update-of-the-evidence-of-experimental-and-controlled-clinical-studies
#7
Alexander Brunnauer, Gerd Laux
Introduction This review provides an update of experimental and clinical studies on the effects of antidepressants on driving performance. Methods A systematic literature search on the PubMed database (1980-2016) was performed. Results Twenty-eight studies could be included in this review, whereas only 5 studies investigated driving performance under antidepressants in patients. Most tri- and tetracyclics have acute deleterious effects on driving performance that, except for mianserin, attenuate after subchronic use...
July 17, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28702268/distressing-visual-hallucinations-after-treatment-with-trazodone
#8
Gustavo Santos, Ana Maria Moreira
Trazodone, a second-generation atypical antidepressant, is increasingly being used off-label, in the treatment of insomnia. Although generally well tolerated, trazodone treatment can be associated with some complications. We describe a case of a 60-year-old man who received trazodone for primary insomnia. He returned, to the emergency department, two days later with distressing visual hallucinations, which prompted inpatient treatment. Trazodone was discontinued, leading to a complete resolution of his visual hallucinations, and he was treated with mirtazapine for 6 months...
2017: Case Reports in Psychiatry
https://www.readbyqxmd.com/read/28698115/interleukin-17-selectively-predicts-better-outcomes-with-bupropion-ssri-combination-novel-t-cell-biomarker-for-antidepressant-medication-selection
#9
Manish K Jha, Abu Minhajuddin, Bharathi Gadad, Tracy L Greer, Taryn L Mayes, Madhukar H Trivedi
BACKGROUND: Interleukin 17 (IL-17) is produced by highly inflammatory Th17 cells and has been implicated in pathophysiology of depression. IL-17 putatively disrupts the blood brain barrier and affects dopamine synthesis whereas dopamine has been shown to decrease Th17 cell-mediated immune response. Nevertheless, whether IL-17 can predict differential treatment outcome with antidepressants modulating dopaminergic transmission is unknown. METHODS: IL-17 and other T cell and non-T cell markers (Th1, Th2 and non-T cell markers) were measured with the Bioplex Pro™ human cytokine 27-plex kit in the Combining Medications to Enhance Depression Outcomes (CO-MED) trial participants who provided baseline plasma and were treated with either bupropion plus escitalopram (bupropion-SSRI), escitalopram plus placebo (SSRI monotherapy), or venlafaxine plus mirtazapine (n=166)...
July 8, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28697423/early-improvement-as-a-resilience-signal-predicting-later-remission-to-antidepressant-treatment-in-patients-with-major-depressive-disorder-systematic-review-and-meta-analysis
#10
REVIEW
Stefanie Wagner, Alice Engel, Jan Engelmann, David Herzog, Nadine Dreimüller, Marianne B Müller, André Tadić, Klaus Lieb
Early improvement of depressive symptoms during the first two weeks of antidepressant treatment has been discussed to be a resilience signal predicting a later positive treatment outcome in patients with Major Depressive Disorder (MDD). However, the predictive value of early improvement varies between studies, and the use of different antidepressants may explain heterogeneous results. The objective of this review was to assess the predictive value of early improvement on later response and remission and to identify antidepressants with the highest chance of early improvement...
July 4, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28695632/the-effect-of-mirtazapine-on-gastric-accommodation-gastric-sensitivity-to-distention-and-nutrient-tolerance-in-healthy-subjects
#11
F Carbone, T Vanuytsel, J Tack
BACKGROUND: Disturbances of gastric motor function of functional dyspepsia (FD) have been implicated in the pathogenesis of the symptoms, and hence, motility modifying agents are considered for its treatment. Mirtazapine was recently shown to improve symptoms and increase nutrient tolerance in FD patients with weight loss. We aim to evaluate the effect of mirtazapine on gastric sensorimotor function in healthy volunteers (HV). METHODS: Thirty-one HV underwent an intragastric pressure (IGP) and barostat measurements on separate days before and after 3 weeks of placebo or mirtazapine (15 mg)...
July 11, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28672149/enantiomeric-profiling-of-a-chemically-diverse-mixture-of-chiral-pharmaceuticals-in-urban-water
#12
S Evans, J Bagnall, B Kasprzyk-Hordern
Due to concerns regarding the release of pharmaceuticals into the environment and the understudied impact of stereochemistry of pharmaceuticals on their fate and biological potency, we focussed in this paper on stereoselective transformation pathways of selected chiral pharmaceuticals (16 pairs) at both microcosm (receiving waters and activated sludge wastewater treatment simulating microcosms) and macrocosm (wastewater treatment plant (WWTP) utilising activated sludge technology and receiving waters) scales in order to test the hypothesis that biodegradation of chiral drugs is stereoselective...
June 30, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28668504/mirtazapine-attenuates-the-expression-of-nicotine-induced-locomotor-sensitization-in-rats
#13
Susana Barbosa-Méndez, Noé Jurado, Maura Matus-Ortega, Silvia Martiñón-Gutiérrez, Gerardo Heinze, Alberto Salazar-Juárez
Nicotine is the primary psychoactive component of tobacco. Many addictive nicotinic actions are mediated by an increase in the activity of the serotonin (5-HT) system. Some studies show that the 5-HT2A, 5-HT2C, and 5-HT3 receptors have a central role in the induction and expression of nicotine-induced locomotor sensitization. Mirtazapine, an antagonist of the α2-adrenergic receptors, the 5-HT2A/C, and the 5-HT3 receptors, has proven effective in reducing behavioral effects induced by drugs like cocaine and methamphetamines in human and animal...
June 28, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28659160/inhibition-of-mirtazapine-metabolism-by-ecstasy-mdma-in-isolated-perfused-rat-liver-model
#14
Sanaz Jamshidfar, Yalda H Ardakani, Hoda Lavasani, Mohammadreza Rouini
BACKGROUND: Nowadays MDMA (3,4-methylendioxymethamphetamine), known as ecstasy, is widely abused among the youth because of euphoria induction in acute exposure. However, abusers are predisposed to depression in chronic consumption of this illicit compound. Mirtazapine (MRZ), an antidepressant agent, may be prescribed in MDMA-induced depression. MRZ is extensively metabolized in liver by CYP450 isoenzymes. 8-hydroxymirtazapine (8-OH) is mainly produced by CYP2D6. N-desmethylmirtazapine (NDES) is generated by CYP3A4...
June 28, 2017: Daru: Journal of Faculty of Pharmacy, Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28624596/repeated-co-treatment-with-antidepressants-and-risperidone-increases-bdnf-mrna-and-protein-levels-in-rats
#15
Zofia Rogóż, Katarzyna Kamińska, Patrycja Pańczyszyn-Trzewik, Magdalena Sowa-Kućma
BACKGROUND: Recently, several clinical studies have suggested a beneficial effect of a combination of antidepressants (ADs) with antipsychotic drugs in drug-resistant depression. Moreover, preclinical and clinical studies indicated a role of brain-derived neurotrophic factor (BDNF) in the pathology of depression, as well as in the mechanism of action of ADs. METHODS: In the present study, we investigated the effect of repeated administration of ADs, escitalopram, fluoxetine or mirtazapine and a low dose of risperidone (an atypical antipsychotic drug) given separately or in combination, on the mRNA and protein levels of BDNF or cAMP response element binding (p-CREB) in the hippocampus and frontal cortex of male Wistar rats...
March 4, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28623179/modulation-of-tgf-%C3%AE-smad-and-erk-signaling-pathways-mediates-the-anti-fibrotic-effect-of-mirtazapine-in-mice
#16
Dalia M El-Tanbouly, Walaa Wadie, Rabab H Sayed
Serotonin (5-HT) has been implicated as a key driver of liver fibrosis, acting via 5-HT2 receptor activation in the hepatic stellate cells. The current study was conducted to investigate the effects of mirtazapine, a 5-HT2A antagonist, in a mouse model of liver fibrosis. Mice received thioacetamide (TAA, 150mg/kg/biweekly, ip) for nine successive weeks for induction of liver fibrosis. Administration of mirtazapine significantly improved the plasma aminotransferases, reduced hepatic 5-HT concentration and ameliorated TAA-induced liver fibrosis, as demonstrated by reduced portal blood pressure, liver procollagen I content and α alpha smooth muscle actin expression...
August 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28622206/bupropion-augmentation-in-a-case-of-compulsive-buying-disorder
#17
Gianna Sepede, Giuseppe Di Iorio, Fabiola Sarchione, Federica Fiori, Massimo Di Giannantonio
BACKGROUND: Compulsive buying disorder (CBD) is a condition characterized by excessive preoccupations, impulses, and behaviors regarding buying, resulting in serious psychological, social, and financial problems. Even though it has not been included in Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, "behavioral addictions" section, CBD is a hot topic in current clinical psychiatry, because of its relevant prevalence (at least 5% in adult populations) and severe effect on quality of life...
July 2017: Clinical Neuropharmacology
https://www.readbyqxmd.com/read/28588338/successful-treatment-of-blastomycosis-in-a-7-year-old-female-golden-retriever-dog-on-manitoulin-island-ontario
#18
Rachael K Needles
A 7-year-old female golden retriever dog was presented with a 2-week history of coughing and inappetence. Examination, radiographs, and blood analysis showed classic evidence of blastomycosis, confirmed with the MVista EIA urine antigen test. A 2-month course of itraconazole and a course of mirtazapine, meloxicam, furosemide, and tetracycline resulted in a successful outcome.
June 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/28547577/pramipexole-overdose-associated-with-visual-hallucinations-agitation-and-myoclonus
#19
Adeline Cardon-Dunbar, Tom Robertson, Michael S Roberts, Geoffrey K Isbister
INTRODUCTION: Pramipexole is a dopamine D2 receptor agonist used to treat idiopathic Parkinson's disease and primary restless legs syndrome. There is limited information on pramipexole overdose. CASE REPORT: A 59-year-old male ingested 3 mg pramipexole, 2250 mg venlafaxine, 360 mg mirtazapine, with suicidal intent. He presented alert, had normal vital observations and normal pupillary reflexes. He was mildly agitated, reported visual hallucinations and was given 5 mg diazepam...
May 25, 2017: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/28535979/mirtazapine-fatal-poisoning
#20
Claudia Vignali, Angelo Groppi, Francesca Brandolini, Francesco Maria Avato, Anna Talarico, Rosa Maria Gaudio, Luca Morini
Mirtazapine is a noradrenergic and specific serotoninergic antidepressant agent that stimulates norepinephrine and serotonin release while also blocking serotonin receptors (5-HT2 and 5-HT3). Although the drug is used extensively, at present we do not know of any fatal cases due to mirtazapine alone. On the contrary, the published literature describes several fatal poisoning cases related to the intake of mirtazapine together with other drugs. Here we describe a fatal case of mirtazapine self-poisoning, since the other drug detected (lorazepam), was within the therapeutic range...
May 8, 2017: Forensic Science International
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