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https://www.readbyqxmd.com/read/28535116/is-mannitol-the-treatment-of-choice-for-patients-with-ciguatera-fish-poisoning
#1
Michael E Mullins, Robert S Hoffman
CONTEXT: Ciguatera fish poisoning arises primarily from consumption of carnivorous reef fish caught in tropical and sub-tropical waters. Ciguatoxins, a class of tasteless, heat-stable, polycyclic toxins produced by dinoflagellates, accumulate through the food chain and concentrate in various carnivorous fish, such as groupers, barracudas, wrasses, amberjack, kingfishes, and eels. Characteristics of ciguatera fish poisoning include early nausea, vomiting, and diarrhea in the first one to two days post ingestion, followed by the appearance of sensory disturbances...
May 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28528967/chronic-fluoxetine-rescues-changes-in-plasma-membrane-density-of-5-ht1a-autoreceptors-and-serotonin-transporters-in-the-olfactory-bulbectomy-rodent-model-of-depression
#2
Mustapha Riad, Antonia Kobert, Laurent Descarries, Sandra Boye, Pierre-Paul Rompré, Jean-Claude Lacaille
Reduced serotonin (5-HT) neurotransmission is postulated to underlie the pathogenesis of depression. The serotonin transporter (SERT) and 5-HT1A auto-receptors act in concert to ensure homeostasis of serotonin (5-HT) neurotransmission and regulation of their cell surface expression represent efficient mechanisms to maintain this homeostasis. Thus, we investigated the changes in the subcellular distribution of SERT and 5-HT1A receptors (5-HT1AR) in the rat olfactory bulbectomy model of depression using immuno-gold labelling and electron microscopy, and examined the effect of chronic treatment with the antidepressant, fluoxetine, a serotonin reuptake inhibitor, on the subcellular distribution of SERT and 5-HT1AR...
May 18, 2017: Neuroscience
https://www.readbyqxmd.com/read/28526399/evaluation-of-the-effectiveness-of-chronic-antidepressant-drug-treatments-in-the-hippocampal-mitochondria-a-proteomic-study-in-an-animal-model-of-depression
#3
Katarzyna Głombik, Aneta Stachowicz, Ewa Trojan, Rafał Olszanecki, Joanna Ślusarczyk, Maciej Suski, Katarzyna Chamera, Bogusława Budziszewska, Władysław Lasoń, Agnieszka Basta-Kaim
Several lines of evidence indicate that adverse experience in early life may be a triggering factor for disturbances in the brain mitochondrial proteins and lead to the development of depression in adulthood. On the other hand, little is known about the impact of chronic administration of various antidepressant drugs on the brain mitochondria, as a target for the pharmacotherapy of depression. The purpose of our study was to compare the impact of chronic treatment with two antidepressant drugs with different mechanisms of action, a tricyclic antidepressant (TCA), imipramine, and an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class, fluoxetine, on the mitochondria-enriched subproteome profile in the hippocampus of 3-month-old male rats following a prenatal stress procedure (an animal model of depression)...
May 16, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28523892/a-young-child-with-eosinophilia-rash-and-multisystem-illness-drug-rash-eosinophilia-and-systemic-symptoms-syndrome-after-receipt-of-fluoxetine
#4
Pandiarajan Vignesh, Janak Kishore, Ankur Kumar, Keshavamurthy Vinay, Sunil Dogra, Sreejesh Sreedharanunni, Prabhas Prasun Giri, Priyankar Pal, Apurba Ghosh
Drug rash, eosinophilia, and systemic symptoms (DRESS) syndrome is a severe systemic hypersensitivity reaction that usually occurs within 6 weeks of exposure to the offending drug. Diagnosis is usually straightforward in patients with pyrexia, skin rash, hepatitis, and eosinophilia with a preceding history of exposure to agents often associated with DRESS syndrome, such as aromatic anticonvulsants and sulfa drugs, but diagnosis of DRESS may still be a challenge. We report a 4-year-old child with probable DRESS syndrome complicated by multiple hematologic complications that developed 1 month after exposure to fluoxetine, a drug not known to be associated with such severe reactions...
May 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28523193/mechanisms-underlying-the-antidepressant-response-of-acupuncture-via-pka-creb-signaling-pathway
#5
Huili Jiang, Xuhui Zhang, Yu Wang, Huimin Zhang, Jing Li, Xinjing Yang, Bingcong Zhao, Chuntao Zhang, Miao Yu, Mingmin Xu, Qiuyun Yu, Xingchen Liang, Xiang Li, Peng Shi, Tuya Bao
Protein kinase A (PKA)/cAMP response element-binding (CREB) protein signaling pathway, contributing to impaired neurogenesis parallel to depressive-like behaviors, has been identified as the crucial factor involved in the antidepressant response of acupuncture. However, the molecular mechanisms associated with antidepressant response of acupuncture, neurogenesis, and depressive-like behaviors ameliorating remain unexplored. The objective was to identify the mechanisms underlying the antidepressant response of acupuncture through PKA signaling pathway in depression rats by employing the PKA signaling pathway inhibitor H89 in in vivo experiments...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28521247/cognitive-performance-of-juvenile-monkeys-after-chronic-fluoxetine-treatment
#6
Mari S Golub, Edward P Hackett, Casey E Hogrefe, Csaba Leranth, John D Elsworth, Robert H Roth
Potential long term effects on brain development are a concern when drugs are used to treat depression and anxiety in childhood. In this study, male juvenile rhesus monkeys (three-four years of age) were dosed with fluoxetine or vehicle (N=16/group) for two years. Histomorphometric examination of cortical dendritic spines conducted after euthanasia at one year postdosing (N=8/group) suggested a trend toward greater dendritic spine synapse density in prefrontal cortex of the fluoxetine-treated monkeys. During dosing, subjects were trained for automated cognitive testing, and evaluated with a test of sustained attention...
May 1, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28513059/fluoxetine-and-congenital-malformations-a-systematic-review-and-meta-analysis-of-cohort-studies
#7
Shan-Yan Gao, Qi-Jun Wu, Tie-Ning Zhang, Zi-Qi Shen, Cai-Xia Liu, Xin Xu, Chao Ji, Yu-Hong Zhao
AIMS: To investigate the safety of fluoxetine use during pregnancy, and to better understand the relationship between maternal fluoxetine use during the first trimester and congenital malformations in infants. METHODS: PubMed and Web of Science databases were systematically searched from inception to 21 March 2016. Additional studies were identified in a manual search of the reference lists. Two reviewers independently extracted data. A third reviewer checked the data...
May 17, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28511978/behavioural-outcomes-of-adult-female-offspring-following-maternal-stress-and-perinatal-fluoxetine-exposure
#8
Veronika Kiryanova, Sara J Meunier, Richard H Dyck
Depression, anxiety, and stress are common in pregnant women. One of the primary pharmacological treatments for anxiety and depression is the antidepressant fluoxetine (Flx). Maternal stress, depression, and Flx exposure are known to effect neurodevelopment of the offspring, however, their combined effects have been scarcely studied, especially in female offspring. The present study investigated the combined effects of maternal stress during pregnancy and perinatal exposure to Flx on the behaviour of female mice as adults...
May 13, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28511916/pre-treatment-with-amitriptyline-causes-epigenetic-up-regulation-of-neuroprotection-associated-genes-and-has-anti-apoptotic-effects-in-mouse-neuronal-cells
#9
Nguyen Quoc Vuong Tran, An Nghia Nguyen, Kyoko Takabe, Zentaro Yamagata, Kunio Miyake
Antidepressants, such as imipramine and fluoxetine, are known to alter gene expression patterns by inducing changes in the epigenetic status of neuronal cells. There is also some evidence for the anti-apoptotic effect of various groups of antidepressants; however, this effect is complicated and cell-type dependent. Antidepressants of the tricyclic group, in particular amitriptyline, have been suggested to be beneficial in the treatment of neurodegenerative disorders. We examined whether amitriptyline exerts an anti-apoptotic effect via epigenetic mechanisms...
May 13, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28511118/simultaneous-determination-of-selective-serotonin-reuptake-inhibitors-and-their-main-metabolites-in-human-breast-milk-by-liquid-chromatography-electrospray-mass-spectrometry
#10
Etienne Weisskopf, Alice Panchaud, Kim An Nguyen, Delphine Grosjean, Jean-Michel Hascoët, Chantal Csajka, Chin B Eap, Nicolas Ansermot
A bioanalytical method by high performance liquid chromatography coupled to electrospray mass spectrometry (HPLC-ESI-MS), adapted from a previously published method in plasma, was validated in breast milk for the simultaneous quantification of all antidepressants belonging to the class of selective serotonin reuptake inhibitors (citalopram, fluoxetine, fluvoxamine, paroxetine and sertraline) and their major metabolites (desmethylcitalopram and norfluoxetine). Milk samples (250μl) first underwent protein precipitation followed by solid-phase extraction on a reversed phase/cation exchange sorbent...
July 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28506818/measuring-inhibition-of-monoamine-reuptake-transporters-by-new-psychoactive-substances-nps-in-real-time-using-a-high-throughput-fluorescence-based-assay
#11
Anne Zwartsen, Anouk H A Verboven, Regina G D M van Kleef, Fiona M J Wijnolts, Remco H S Westerink, Laura Hondebrink
The prevalence and use of new psychoactive substances (NPS) is increasing and currently over 600 NPS exist. Many illicit drugs and NPS increase brain monoamine levels by inhibition and/or reversal of monoamine reuptake transporters (DAT, NET and SERT). This is often investigated using labor-intensive, radiometric endpoint measurements. We investigated the applicability of a novel and innovative assay that is based on a fluorescent monoamine mimicking substrate. DAT, NET or SERT-expressing human embryonic kidney (HEK293) cells were exposed to common drugs (cocaine, dl-amphetamine or MDMA), NPS (4-fluoroamphetamine, PMMA, α-PVP, 5-APB, 2C-B, 25B-NBOMe, 25I-NBOMe or methoxetamine) or the antidepressant fluoxetine...
May 12, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28506426/heterogeneity-of-fhf1-related-phenotype-novel-case-with-early-onset-severe-attacks-of-apnea-partial-mitochondrial-respiratory-chain-complex-ii-deficiency-neonatal-onset-seizures-without-neurodegeneration
#12
Nathalie Villeneuve, Affef Abidi, Pierre Cacciagli, Cécile Mignon-Ravix, Brigitte Chabrol, Laurent Villard, Mathieu Milh
INTRODUCTION/OBJECTIVES: We report the case of a child prospectively followed in our institution for a severe, neonatal onset epilepsy presenting with severe attacks of apnea that were not initially recognized as seizure since they were not associated with any abnormal movement and since interictal EEG was normal. Recording of attacks using prolonged video-EEG recording allowed to confirm the diagnosis of epileptic seizures. RESULTS: Using whole exome sequencing we found a de novo heterozygous, missense mutation of FHF1 (p...
April 29, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28505970/efficacy-of-antidepressants-for-depression-in-alzheimer-s-disease-systematic-review-and-meta-analysis
#13
Vasiliki Orgeta, Naji Tabet, Ramin Nilforooshan, Robert Howard
BACKGROUND: Depression is common in people with Alzheimer's disease (AD) affecting overall outcomes and decreasing quality of life. Although depression in AD is primarily treated with antidepressants, there are few randomized controlled trials (RCTs) assessing efficacy and results have been conflicting. OBJECTIVES: To systematically review evidence on efficacy of antidepressant treatments for depression in AD. METHODS: Systematic review and meta-analysis of double blind RCTs comparing antidepressants versus placebo for depression in AD...
May 8, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28503384/divergent-effect-of-fluoxetine-on-the-response-to-physical-or-chemical-stressors-in-zebrafish
#14
Murilo S Abreu, Ana Cristina V V Giacomini, Gessi Koakoski, Angelo L S Piato, Leonardo J G Barcellos
Fluoxetine is a selective serotonin reuptake inhibitor that increases serotonin concentration in the central nervous system and modulates various systems, including the control of sympathetic outflow and the hypothalamus-pituitary-adrenal. However, it is not yet established whether fluoxetine can modulate the responses to stressors stimulants (physical or chemical) that trigger cortisol response in zebrafish. We demonstrate that fluoxetine blunts the response to physical stress, but not to chemical stress.
2017: PeerJ
https://www.readbyqxmd.com/read/28501680/dilated-virchow-robin-spaces-in-the-hippocampus-impact-behaviors-and-effects-of-anti-depressant-treatment-in-model-of-depressed-rats
#15
Yuefeng Li, Jinchuan Yan, Xiaolan Zhu, Yan Zhu, Shun Yao, Yuhao Xu, Shenghong Ju
The occurrences of dilated Virchow-Robin spaces (dVRSs) and inflammatory factors were closely related with development of depression and antidepressants. The present study indicated accumulation of inflammatory factors in dVRSs played a practical role in behaviors and the treatment-resistant in rats with depression. Eighty-one male Wistar rats were exposed to chronic unpredictable mild stress (CUMS) until the model was successfully established. According to the detection of dVRSs on 7 T structural magnetic resonance imaging (MRI), rats were divided into two groups (45 CUMS(non-dVRSs) rats and 36 CUMS(dVRSs) rats)...
April 21, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28500556/reversing-glioma-malignancy-a-new-look-at-the-role-of-antidepressant-drugs-as-adjuvant-therapy-for-glioblastoma-multiforme
#16
Anna M Bielecka-Wajdman, Marta Lesiak, Tomasz Ludyga, Aleksander Sieroń, Ewa Obuchowicz
PURPOSE: The role of glioma stem cells (GSCs) in cancer progression is currently debated; however, it is hypothesised that this subpopulation is partially responsible for therapeutic resistance observed in glioblastoma multiforme (GBM). Recent studies have shown that the current treatments not only fail to eliminate the GSC population but even promote GSCs through reprogramming of glioma non-stem cells to stem cells. Since the standard GBM treatment often requires supplementation with adjuvant drugs such as antidepressants, their role in the regulation of the heterogeneous nature of GSCs needs evaluation...
June 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28499974/prefrontal-cortical-glutathione-dependent-defense-and-proinflammatory-mediators-in-chronically-isolated-rats-modulation-by-fluoxetine-or-clozapine
#17
Nevena Todorović, Dragana Filipović
Chronic psychosocial stress modulates brain antioxidant systems and causes neuroinflammation that plays a role in the pathophysiology of depression. Although the antidepressant fluoxetine (FLX) represents the first-line treatment for depression and the atypical antipsychotic clozapine (CLZ) is considered as a second-line treatment for psychotic disorders, the downstream mechanisms of action of these treatments, beyond serotonergic or dopaminergic signaling, remain elusive. We examined behavioral changes, glutathione (GSH)-dependent defense and levels of proinflammatory mediators in the prefrontal cortex (PFC) of adult male Wistar rats exposed to 21days of chronic social isolation (CSIS)...
May 10, 2017: Neuroscience
https://www.readbyqxmd.com/read/28499898/antidepressant-drugs-for-beta-amyloid-induced-depression-a-new-standpoint
#18
Schiavone Stefania, Tucci Paolo, Mhillaj Emanuela, Bove Maria, Trabace Luigia, Morgese Maria Grazia
Mounting evidence suggests that depression represents a risk factor and an early manifestation of Alzheimer's disease (AD). Neuropsychiatric symptoms may derive from neurobiological changes in specific brain areas and may be considered prodromal of dementia. We have previously reported the depressive-like profile in rats receiving a single intracerebroventricular injection of soluble amyloid beta protein (ßA). Here, we verified the effect of different classes of antidepressants on the ßA-induced depressive behavior and on cortical monoamine levels...
May 9, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28494448/effects-of-cyp2c19-variants-on-fluoxetine-metabolism-in-vitro
#19
Ping Fang, Jia-Yang He, Ai-Xia Han, Tian Lan, Da-Peng Dai, Jian-Ping Cai, Guo-Xin Hu
AIMS: CYP2C19 is an important member of the cytochrome P450 enzyme superfamily. We recently identified 31 CYP2C19 alleles in the Han Chinese population. The aim of this study was to assess the catalytic activities of these allelic isoforms and their effects on the metabolism of fluoxetine in vitro. METHODS: The wild-type and 30 CYP2C19 variants were expressed in insect cells and each variant was characterized using fluoxetine as the substrate. Reactions were performed at 37°C with 20-1,000 µmol/L substrate for 30 min...
May 12, 2017: Pharmacology
https://www.readbyqxmd.com/read/28494335/ultrasound-assisted-low-density-solvent-dispersive-liquid-liquid-microextraction-for-the-simultaneous-determination-of-12-new-antidepressants-and-2-antipsychotics-in-whole-blood-by-gas-chromatography-mass-spectrometry
#20
Xiujuan Chen, Shuiqing Zheng, Jian Le, Zheyuan Qian, Runsheng Zhang, Zhanying Hong, Yifeng Chai
Antidepressant drugs are widely used in the treatment of different psychiatric disorders, as well as in conjunction with antipsychotics for the treatment of major depressive disorder. In this study, a simple and rapid ultrasound-assisted low-density solvent dispersive liquid-liquid microextraction (UA-LDS-DLLME) method was developed for the simultaneous determination of 12 new antidepressants (norfluoxetine, fluoxetine, fluvoxamine, agomelatine, mirtazapine, moclobemide, melitracen, N-desmethylmirtazapine, maprotiline, sertraline, citalopram, paroxetine) and 2 antipsychotics (clozapine and haloperidol) in human whole blood by gas chromatography-mass spectrometry (GC-MS)...
April 29, 2017: Journal of Pharmaceutical and Biomedical Analysis
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