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https://www.readbyqxmd.com/read/28716632/mitochondrial-estrogen-receptors-as-a-vulnerability-factor-of-chronic-stress-and-mediator-of-fluoxetine-treatment-in-female-and-male-rat-hippocampus
#1
Miroslav Adzic, Milos Mitic, Marija Radojcic
Depression is a disease of an abnormal brain energy metabolism also marked with increased apoptosis in specific brain regions. Mounting evidence indicates that the mitochondrial oxidative phosphorylation and apoptosis are novel targets for the actions of estrogen receptors (ERs). In this study, we examined the effects of antidepressant (AD) fluoxetine (FLU) treatment on the mitochondrial ER alpha (ERα), ER beta (total and phospo-pERβ) and their association with cytochrome c (cyt c) oxidase activity and apoptotic Bcl2/Bax-molecules in the hippocampal mitochondria of chronically isolated (CPSI) female and male rats depicting depression...
July 14, 2017: Brain Research
https://www.readbyqxmd.com/read/28712878/antidepressants-are-cytotoxic-to-rat-primary-blood-brain-barrier-endothelial-cells-at-high-therapeutic-concentrations
#2
Ekramy Elmorsy, Ayat Al-Ghafari, Fahd M Almutairi, Amal Misbah Aggour, Wayne G Carter
Antidepressants are commonly employed for the treatment of major depressive disorders and other psychiatric conditions. We investigated the relatively acute cytotoxic effects of three commonly prescribed antidepressants: fluoxetine, sertraline, and clomipramine on rat primary blood brain barrier endothelial cells over a concentration range of 0.1-100μM. At therapeutic concentrations (0.1μM) no significant cytotoxicity was observed after 4, 24, or 48h. At high therapeutic to overdose concentrations (1-100μM), antidepressants reduced cell viability in proportion to their concentration and exposure duration...
July 13, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28708853/selective-serotonin-reuptake-inhibitors-and-venlafaxine-in-pregnancy-changes-in-drug-disposition
#3
Andreas Austgulen Westin, Malin Brekke, Espen Molden, Eirik Skogvoll, Olav Spigset
BACKGROUND: Pregnancy may cause changes in drug disposition. The clinical consequences may be profound and even counterintuitive; in some cases pregnant women may need more than twice their usual drug dose in order to maintain therapeutic drug levels. For antidepressants, evidence on drug disposition in pregnancy is scarce. The aim of this study was to determine the effects of pregnancy on serum levels of selective serotonin reuptake inhibitors (SSRIs) and venlafaxine in a large and naturalistic patient material, in order to provide tentative dose recommendations for pregnant women...
2017: PloS One
https://www.readbyqxmd.com/read/28706563/quality-of-life-in-children-and-adolescents-with-bipolar-i-depression-treated-with-olanzapine-fluoxetine-combination
#4
Daniel J Walker, Melissa P DelBello, John Landry, Deborah N D'Souza, Holland C Detke
BACKGROUND: We examined the efficacy of olanzapine/fluoxetine combination (OFC) in improving health-related quality of life (QoL) in the treatment of bipolar depression in children and adolescents. METHODS: Patients aged 10-17 years with bipolar I disorder, depressed episode, baseline children's depression rating scale-revised (CDRS-R) total score ≥40, Young Mania Rating Scale (YMRS) total score ≤15, and YMRS-item 1 ≤ 2 were randomized to OFC (6/25-12/50 mg/day olanzapine/fluoxetine; n = 170) or placebo (n = 85) for up to 8 weeks of double-blind treatment...
2017: Child and Adolescent Psychiatry and Mental Health
https://www.readbyqxmd.com/read/28702917/occurrence-and-risk-assessment-of-antidepressants-in-huangpu-river-of-shanghai-china
#5
Minghong Wu, Jiajia Xiang, Fenfen Chen, Cao Fu, Gang Xu
Antidepressants are gaining public attention because of increasing reports of their occurrence in environment and their potential impact on ecosystems and human health. Continuous input of pharmaceuticals into rivers, through psychiatric hospital or wastewater treatment plant (WWTPs) effluent, may cause adverse effects on the aquatic ecosystems of the receiving water bodies. This work investigates the occurrence and sources of 8 antidepressants in main stream and tributaries of Huangpu River in Shanghai. The detected concentrations of the selected antidepressants ranged from low nanogram per liter to 42...
July 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28691510/treatment-of-pseudobulbar-affect-with-fluoxetine-and-dextromethorphan-in-a-woman-with-multiple-sclerosis
#6
Ian McGrane, Amy VandenBerg, Robert Munjal
No abstract text is available yet for this article.
July 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28685967/rapid-solid-phase-extraction-coupled-with-gc-ms-method-for-the-determination-of-venlafaxine-in-rat-plasma-application-to-the-drug-drug-pharmacokinetic-interaction-study-of-venlafaxine-combined-with-fluoxetine
#7
Lin Song, Zhen Zheng, Chen Liang, Xiujuan Chen, Runsheng Zhang, Zhanying Hong, Yifeng Chai
A rapid and sensitive gas chromatography with mass spectrometry method for the determination of venlafaxine in rat plasma has been developed and applied to a drug-drug interaction study of fluoxetine on pharmacokinetics of venlafaxine in rats. Rat plasma was spiked with 2% aqueous ammonia before subjected to preactivated C18 solid-phase extraction columns and eluted with methanol. No endogenous interferences were observed under optimal condition. The calibration curve was linear (R(2)  = 0.9994) in the range of 10-1000 ng/mL...
July 7, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28685757/social-learning-requires-plasticity-enhanced-by-fluoxetine-through-prefrontal-bdnf-trkb-signaling-to-limit-aggression-induced-by-post-weaning-social-isolation
#8
Éva Mikics, Ramon Guirado, Juzoh Umemori, Máté Tóth, László Biró, Christina Miskolczi, Diána Balázsfi, Dóra Zelena, Eero Castrén, József Haller, Nina N Karpova
Escalated or abnormal aggression induced by early adverse experiences is a growing issue of social concern and urges the development of effective treatment strategies. Here we report that synergistic interactions between psychosocial and biological factors specifically ameliorate escalated aggression induced by early adverse experiences. Rats reared in isolation from weaning until early adulthood showed abnormal forms of aggression and social deficits that were temporarily ameliorated by re-socialization, but aggression again escalated in a novel environment...
July 7, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28684088/effect-of-electrostatic-interaction-between-fluoxetine-and-lipid-membranes-on-the-partitioning-of-fluoxetine-investigated-using-second-derivative-spectrophotometry-and-ftir
#9
Tien T T Do, Uyen P N Dao, Huong T Bui, Trang T Nguyen
The interaction between a drug molecule and lipid bilayers is highly important regarding the pharmaceutical activity of the drug. In this study, the interaction of fluoxetine, a well-known selective serotonin reuptake inhibitor antidepressant and lipid bilayers composed of 1,2-dipalmitoyl-sn-glycero-3-phospho-(1'-rac-glycerol) (DPPG) and 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) was studied from the aspect of electrostatics using second derivative spectrophotometry and Fourier transform infrared spectroscopy (FTIR) in order to provide insights into the drug behavior...
July 3, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28677866/increased-incidence-of-non-alcoholic-fatty-liver-disease-in-male-rat-offspring-exposed-to-fluoxetine-during-fetal-and-neonatal-life-involves-the-nlrp3-inflammasome-and-augmented-de-novo-hepatic-lipogenesis
#10
Nicole E De Long, Daniel B Hardy, Noelle Ma, Alison C Holloway
Up to 10% of women take selective serotonin reuptake inhibitors (SSRI) during pregnancy. Children exposed to SSRIs in utero have an increased risk of being overweight suggesting that fetal exposure to SSRIs can cause permanent metabolic changes. We have previously shown in rats that fetal and neonatal exposure to the SSRI antidepressant fluoxetine results in metabolic perturbations including increased hepatic triglyceride content; a hallmark of non-alcoholic fatty liver disease (NAFLD). Therefore, the aim of this study was to identify the mechanism(s) underlying the fluoxetine-induced increase in intrahepatic triglyceride content...
July 5, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28672149/enantiomeric-profiling-of-a-chemically-diverse-mixture-of-chiral-pharmaceuticals-in-urban-water
#11
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/28670837/analytical-methodologies-for-the-stereoselective-determination-of-fluoxetine-an-overview
#12
REVIEW
Gabriel Hancu, Melania Cârcu-Dobrin, Monica Budău, Aura Rusu
Fluoxetine is a widely used antidepressant belonging to the selective serotonin reuptake inhibitor class; used in the treatment of major depression, obsessive compulsive, premenstrual dysphoric, panic and post-traumatic stress disorders. Fluoxetine is an optical active pharmaceutical substance, which is used as a racemate in therapy, but stereospecific interactions associated with the serotonin-reuptake carrier, for both the parent drug and its active metabolite, norfluoxetine, has been described in the literature...
July 3, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28667541/serotonergic-medications-herbal-supplements-and-perioperative-serotonin-syndrome
#13
Mary E Warner, Julian Naranjo, Emily M Pollard, Toby N Weingarten, Mark A Warner, Juraj Sprung
PURPOSE: Perioperative use of serotonergic agents increases the risk of serotonin syndrome. We describe the occurrence of serotonin syndrome after fentanyl use in two patients taking multiple serotonergic agents. CLINICAL FEATURES: Two patients who had been taking multiple serotonergic medications or herbal supplements (one patient taking fluoxetine, turmeric supplement, and acyclovir; the other taking fluoxetine and trazodone) developed serotonin syndrome perioperatively when undergoing outpatient procedures...
June 30, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
https://www.readbyqxmd.com/read/28666060/ssris-associated-with-decreased-risk-of-hepatocellular-carcinoma-a-population-based-case-control-study
#14
Hsiang-Lin Chan, Wei-Che Chiu, Vincent Chin-Hung Chen, Kuo-You Huang, Tsu-Nai Wang, Yena Lee, Roger S McIntyre, Tsai-Ching Hsu, Charles Tzu-Chi Lee, Bor-Show Tzang
BACKGROUND: Hepatocellular carcinoma (HCC) is the second leading cancer-related cause of mortality worldwide. Antidepressants, especially selective serotonin re-uptake inhibitors (SSRIs), are commonly used worldwide. Available evidence investigating the association between SSRIs use and HCC risk is limited. OBJECTIVE: he present study aimed to investigate if the effect of all kinds of SSRIs on HCC was the same or not using population-based study. METHODS: The nationwide population-based study herein using Taiwan's National Health Insurance Research Database included a total of 59,859 cases with HCC and 285,124 matched controls...
June 30, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/28662893/both-serotonergic-and-noradrenergic-systems-modulate-the-development-of-tolerance-to-chronic-stress-in-rats-with-lesions-of-the-serotonergic-neurons-of-the-median-raphe-nucleus
#15
A C Pereira, M C Carvalho, C M Padovan
Acute exposure to stress induces significant behavioural changes, while repeated exposure to the same stressor leads to the development of tolerance to stress. The development of tolerance appears to involve the serotonergic projections from the Median Raphe Nucleus (MnRN) to the dorsal Hippocampus (dH), since rats with lesions of this pathway does not develop tolerance to stress. Previous data from our laboratory showed that treatment with imipramine, a serotonin (5-HT) and noradrenaline (NA) reuptake inhibitor, lead to the development of tolerance...
June 26, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28659038/a-randomized-controlled-trial-of-medication-and-cognitive-behavioral-therapy-for-hypochondriasis
#16
Brian A Fallon, David K Ahern, Martina Pavlicova, Iordan Slavov, Natalia Skritskya, Arthur J Barsky
OBJECTIVE: Prior studies of hypochondriasis demonstrated benefits for pharmacotherapy and for cognitive-behavioral therapy (CBT). This study examined whether joint treatment offers additional benefit. METHOD: Patients with DSM-IV hypochondriasis (N=195) were randomly assigned to one of four treatments-placebo, CBT, fluoxetine, or joint treatment with both fluoxetine and CBT. Evaluations assessed hypochondriasis, other psychopathology, adverse events, functional status, and quality of life...
June 29, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28656606/preventive-effects-of-ginseng-total-saponins-on-chronic-corticosterone-induced-impairment-in-astrocyte-structural-plasticity-and-hippocampal-atrophy
#17
Lin Chen, Xin Wang, Zi-Xuan Lin, Jian-Guo Dai, Yu-Fang Huang, Yu-Nan Zhao
To further explore the underlying antidepressant mechanism of ginseng total saponins (GTS), this study observed the effects on hippocampal astrocyte structural plasticity and hippocampal volume in the corticosterone-induced mouse depression model. Corticosterone (20 mg/kg/day) was administered subcutaneously for 5 weeks, and GTS (12.5, 25, and 50 mg/kg/day; namely GTSL, GTSM, and GTSH) or fluoxetine (10 mg/kg/day) were given intragastrically during the last 3 weeks. On day 33 and day 34, depression-like behavior was observed via a forced swimming test and a tail suspension test, respectively...
June 28, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28656303/resveratrol-reversed-chronic-restraint-stress-induced-impaired-cognitive-function-in-rats
#18
Qian Zhang, Xueer Wang, Xuemei Bai, Yunkai Xie, Tiantian Zhang, Shishi Bo, Xiaoyang Chen
Chronic stress occurs in everyday life, and often results in memory impairments and depressive symptoms. Resveratrol is a natural polyphenol that possesses numerous biological properties, including potent antidepressant‑like effects. The present study aimed to examine the effects of resveratrol treatment on chronic restraint stress (CRS)‑induced cognitive impairment and to explore the underlying molecular mechanisms. Male Wistar rats were exposed to CRS for 21 days in order to induce depressive‑like behavior...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28656122/uplc-tandem-mass-spectrometry-method-for-simultaneous-determination-of-fluoxetine-risperidone-and-its-active-metabolite-9-hydroxyrisperidone-in-plasma-application-to-pharmacokinetics-study-in-rats
#19
Essam Ezzeldin, Nisreen F Abo-Talib, Marwa H Tammam
Risperidone (RIS) is used as an antipsychotic drug alone or with other drugs, like fluoxetine (FLX). A simple method was developed and validated for the determination of both RIS and its metabolite 9-hydroxyrisperidone (9-OH-RIS), FLX, and olanzapine (OLA) as an internal standard in rat's plasma using UPLC-MS/MS. FLX, RIS, 9-OH-RIS, and OLA were purified using acetonitrile as a protein precipitating agent. Separation was performed on an ACQUITY™ "UPLC BEH™" C18 column (50 mm × 2.1 mm i.d., 1.7 μm; Waters Corp...
2017: Journal of Analytical Methods in Chemistry
https://www.readbyqxmd.com/read/28655626/differential-effects-of-perinatal-exposure-to-antidepressants-on-learning-and-memory-acoustic-startle-anxiety-and-open-field-activity-in-sprague-dawley-rats
#20
Jenna L N Sprowles, Jillian R Hufgard, Arnold Gutierrez, Rebecca A Bailey, Sarah A Jablonski, Michael T Williams, Charles V Vorhees
Most antidepressants inhibit monoamine reuptake. Selective serotonin (5-HT) reuptake inhibitors (SSRIs) act on the 5-HT transporter (SERT) whereas norepinephrine-dopamine reuptake inhibitors (NDRIs) act on the norepinephrine and dopamine transporters. Epidemiological reports link SSRI use during pregnancy to an increased prevalence of autism spectrum disorder (ASD). We previously showed that perinatal exposure to the SSRI citalopram (CIT) results in rodent offspring that exhibit a number of behaviors consistent with an ASD-like phenotype...
June 24, 2017: International Journal of Developmental Neuroscience
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