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https://www.readbyqxmd.com/read/28441583/randomized-controlled-trial-of-repetitive-transcranial-magnetic-stimulation-combined-with-paroxetine-for-the-treatment-of-patients-with-first-episode-major-depressive-disorder
#1
Yu-Mei Wang, Ning Li, Lin-Lin Yang, Mei Song, Le Shi, Wen-Hao Chen, Su-Xia Li, Xue-Yi Wang, Lin Lu
Repetitive transcranial magnetic stimulation (rTMS) has been introduced as a new and effective treatment option for major depression. This paper examined the effectiveness of rTMS on first episode depressed patients when combined with antidepressant drugs. A random sample of forty-three first-episode depressed patients received active or sham rTMS to the left dorsolateral prefrontal cortex, and concomitantly took paroxetine for 4 weeks, and paroxetine monotherapy for 4 weeks afterwards. Response was defined as a ≥50% decrease on the total Hamilton Depression Rating Scale (HDRS) from the baseline, and remission was defined as an HDRS total residual score <8...
April 8, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28441580/the-computer-aided-discovery-of-novel-family-of-the-5-ht6-serotonin-receptor-ligands-among-derivatives-of-4-benzyl-1-3-5-triazine
#2
Dorota Łażewska, Rafał Kurczab, Małgorzata Więcek, Katarzyna Kamińska, Grzegorz Satała, Magdalena Jastrzębska-Więsek, Anna Partyka, Andrzej J Bojarski, Anna Wesołowska, Katarzyna Kieć-Kononowicz, Jadwiga Handzlik
The work describes a discovery of new chemical family of potent ligands for the 5-HT6 serotonin receptors. During the search for new histamine H4 receptor antagonists among 1,3,5-triazine derivatives, compound 2 (4-benzyl-6-(4-methylpiperazin-1-yl)-1,3,5-triazin-2-amine) was found. Compound 2, weakly active for the H4 receptor but fitted in 3/4 of pharmacophore features of the 5-HT6R ligand, occurred to be a moderate 5-HT6R agent, useful as a lead structure for further modifications. A series of new derivatives (3-19) of the lead 2 was synthesized, evaluated in the radioligand binding assay (RBA) and explored in comprehensive molecular modelling, including both pharmacophore- and structure-based approaches with docking to the homology model of 5-HT6R...
April 13, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28439104/a-novel-5ht3-receptor-igf1-mechanism-distinct-from-ssri-induced-antidepressant-effects
#3
M Kondo, Y Koyama, Y Nakamura, S Shimada
Depression is a common mental disorder affecting around 350 million people worldwide. Although selective serotonin reuptake inhibitors (SSRIs) are the most widely used antidepressants, a significant proportion of depressed patients do not achieve remission with SSRIs. In this study, we show that a serotonin type 3 receptor (5HT3R) agonist induces antidepressant effects as well as hippocampal neurogenesis independent of fluoxetine (a commonly used SSRI). Notably, our histological analysis reveals that 5HT3R and insulin-like growth factor 1 (IGF1) are expressed in the same neurons in the subgranular zone of the hippocampal dentate gyrus...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28439098/uncoupling-dapk1-from-nmda-receptor-glun2b-subunit-exerts-rapid-antidepressant-like-effects
#4
S-X Li, Y Han, L-Z Xu, K Yuan, R-X Zhang, C-Y Sun, D-F Xu, M Yuan, J-H Deng, S-Q Meng, X-J Gao, Q Wen, L-J Liu, W-L Zhu, Y-X Xue, M Zhao, J Shi, L Lu
Several preclinical studies have reported the rapid antidepressant effects of N-methyl-D-aspartate receptor (NMDAR) antagonists, although the underlying mechanisms are still unclear. Death-associated protein kinase 1 (DAPK1) couples GluN2B subunits at extrasynaptic sites to regulate NMDAR channel conductance. In the present study, we found that chronic unpredictable stress (CUS) induced extracellular glutamate accumulation, accompanied by an increase in the DAPK1-NMDAR interaction, the high expression of DAPK1 and phosphorylated GluN2B at Ser1303, a decrease in phosphorylated DAPK1 at Ser308 and synaptic protein deficits in the rat medial prefrontal cortex (mPFC)...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28438663/acute-effects-of-amitriptyline-on-adult-zebrafish-potential-relevance-to-antidepressant-drug-screening-and-modeling-human-toxidromes
#5
Konstantin A Demin, Tatiana O Kolesnikova, Sergey L Khatsko, Darya M Meshalkina, Evgeniya V Efimova, Yuri Yu Morzherin, Allan V Kalueff
The need to develop novel antidepressants is an emerging problem in biomedicine. An aquatic vertebrate species, the zebrafish (Danio rerio) may serve as a useful in-vivo screen for CNS drugs, and displays high sensitivity to a wide range of antidepressants. Amitriptyline is a commonly used tricyclic antidepressant which acts primarily as a serotonin and noradrenaline reuptake inhibitor. Here, we characterize drug-induced behavioral and neurochemical responses in adult zebrafish following their acute exposure to amitriptyline...
April 21, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28438641/improving-therapeutics-in-anorexia-nervosa-with-tryptophan
#6
REVIEW
Darakhshan Jabeen Haleem
A growing body of evidence suggests that our diet is an important contributing factor in the development, management and prevention of a number of psychiatric illnesses. Tryptophan, an essential amino acid, is the sole precursor of neurotransmitter 5-hydroxytryptamine (5-HT; serotonin). Administration of tryptophan can boost serotonin neurotransmission to produce therapeutically important effects in serotonin deficiency disorders. Anorexia nervosa (AN) an eating disorder associated with high levels of psychiatric comorbidity including psychosis, hyperactivity, depression and anxiety has highest lethality of all psychiatric illnesses...
April 21, 2017: Life Sciences
https://www.readbyqxmd.com/read/28438551/development-of-a-buccal-doxepin-platform-for-pain-in-oral-mucositis-derived-from-head-and-neck-cancer-treatment
#7
Roser Sanz, Ana C Calpena, Mireia Mallandrich, Álvaro Gimeno, Lyda Halbaut, Beatriz Clares
This study describes the development of semisolid formulations containing doxepin (DOX) for pain relief in oral mucositis, frequently related to chemotherapy and/or radiotherapy treatments in patients with head and neck cancer. Chemical permeation enhancers were evaluated and selected according to the results obtained from rheological studies, drug release, permeation and retention through buccal mucosa. Finally, the selected formulation was compared in vivo, with a reference DOX mouthwash, whose clinical efficacy had been previously reported...
April 21, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28438543/modulation-of-motor-cortex-excitability-predicts-antidepressant-response-to-prefrontal-cortex-repetitive-transcranial-magnetic-stimulation
#8
Albino J Oliveira-Maia, Daniel Press, Alvaro Pascual-Leone
BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) targeting the left dorsolateral prefrontal cortex (DLPFC) is a treatment option for patients with medication-resistant major depressive disorder (MDD). However, antidepressant response is variable and there are currently no response predictors with sufficient accuracy for clinical use. OBJECTIVE: We report on results of an observational open-label study to determine whether the modulatory effect of 10 Hz motor cortex (MC) rTMS is predictive of the antidepressant effect of 10 Hz DLPFC rTMS...
March 31, 2017: Brain Stimulation
https://www.readbyqxmd.com/read/28438504/agomelatine-protects-against-neuronal-damage-without-preventing-epileptogenesis-in-the-kainate-model-of-temporal-lobe-epilepsy
#9
Jana Tchekalarova, Dimitrinka Atanasova, Zlatina Nenchovska, Milena Atanasova, Lidia Kortenska, Rumyana Gesheva, Nikolai Lazarov
Recent studies about the novel antidepressant agomelatine, which is a mixed MT1 and MT2 melatonin receptor agonist and 5HT2C serotonin receptor antagonist possessing an anticonvulsant and neuroprotective action, suggest that it may have potential to contribute against epileptogenesis and epilepsy-induced memory impairment. In order to ascertain whether protection of some brain structures could suppress epileptogenesis, in the present study, we evaluated the effect of chronic post-status treatment with agomelatine on epileptogenesis, behavioral and neuronal damage induced by kainate acid (KA) status epilepticus (SE)...
April 21, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28438331/-the-intestinal-microbiota-a-new-player-in-depression
#10
M Meyrel, L Varin, B Detaint, F Mouaffak
Depression is the leading cause of disability in the world according to the World Health Organization. The effectiveness of the available antidepressant therapies is limited. Data from the literature suggest that some subtypes of depression may be associated with chronic low grade inflammation. The uncovering of the role of intestinal microbiota in the development of the immune system and its bidirectional communication with the brain have led to growing interest on reciprocal interactions between inflammation, microbiota and depression...
April 21, 2017: L'Encéphale
https://www.readbyqxmd.com/read/28438149/anti-depressant-and-anxiolytic-potential-of-acacia-hydaspica-r-parker-aerial-parts-extract-modulation-of-brain-antioxidant-enzyme-status
#11
Tayyaba Afsar, Suhail Razak, Muhammad Rashid Khan, Ali Almajwal
BACKGROUND: Oxidative stress may link to psychiatric disorders, and is being regarded as a plausible mechanism that can affect the regulation of these illnesses. The present study was undertaken to investigate the antidepressant and anxiolytic potential of A. hydaspica R. parkers. Brain oxidative stress enzyme levels were analyzed to correlate depression and stress with brain antioxidant status. METHODS: Antidepressant and anxiolytic effect of methanol extract of A...
April 24, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28437821/-rapid-cycling-in-bipolar-disorders-symptoms-%C3%A2-background%C3%A2-and-treatment-recommendations
#12
Stephan Köhler, Eva Friedel, Thomas Stamm
Rapid cycling bipolar disorder is encountered frequently in clinical practice with a lifetime prevalence of up to 31 %. Besides its association with greater illness severity, increased suicide and comorbidity rates, rapid cycling bipolar disorder has been closely associated with a longer and more complicated course of disease and inadequate treatment response compared to non-rapid cycling bipolar disorder. However rapid cycling does not serve as a stable characteristic of bipolar disorder, though its prevalence increases with illness duration...
April 2017: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/28436756/the-role-of-attachment-style-in-interpersonal-psychotherapy-for-depressed-adolescents
#13
Meredith Gunlicks-Stoessel, Ana Westervelt, Kristina Reigstad, Laura Mufson, Susanne Lee
OBJECTIVE(S): This study examined changes in depressed adolescents' reports of attachment anxiety and avoidance with interpersonal psychotherapy (IPT-A), and the relationship between attachment style and change in depression with IPT-A. METHOD: Forty adolescents (aged 12-17) participated in a 16-week randomized clinical trial of 4 adaptive treatment strategies for adolescent depression that began with IPT-A and augmented treatment for insufficient responders (n = 22) by adding additional IPT-A sessions (n = 11) or the antidepressant medication, fluoxetine (n = 11)...
April 24, 2017: Psychotherapy Research: Journal of the Society for Psychotherapy Research
https://www.readbyqxmd.com/read/28436193/association-between-using-medications-with-anticholinergic-properties-and-short-term-cognitive-decline-among-older-men-a-retrospective-cohort-study-in-taiwan
#14
Yi-Hui Wu, Chih-Jen Wang, Cheng-Hao Hung, Liang-Yu Chen, Ming-Hsien Lin, Pei-Ning Wang, Liang-Kung Chen
AIM: The use of anticholinergic drugs had been strongly linked to adverse health outcomes among older adults, especially in cognitive impairment or dementia. The present study aimed to evaluate the cognitive decline related to the use of anticholinergic drugs among older men living in the veterans' homes in Taiwan. METHODS: This retrospective cohort study was a substudy of The Longitudinal Older Veterans study. A total of 274 residents living in four Taiwan veterans' homes and receiving two consecutive Mini-Mental State Examinations within the interval of 6 months from January 2012 to December 2014 were enrolled in the present study...
April 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28435974/-antidepressant-effects-of-the-extract-of-dendrobium-nobile-lindl-on-chronic-unpredictable-mild-stress-induced-depressive-mice
#15
Ning Jiang, Lin-Xi Fan, Yu-Jie Yang, Xin-Min Liu, Hai-Ying Lin, Li Gao, Qiong Wang
To investigate whether the extract of Dendrobium nobile Lindl (DNL) has an antidepressant effect on chronic unpredictable mild stress (CUMS)-induced depressive mice, 72 BALB/c male mice were randomly divided into the control group, the CUMS model group, the extract of DNL groups (50, 100 and 200 mg/kg DNL, i.g.) and the paroxetine group (10 mg/kg, i.g.). The different doses of DNL or the paroxetine was administered orally once daily to CUMS mice for 8 weeks (containing two-week preventive medication before the modeling)...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28433461/severely-impaired-adult-brain-neurogenesis-in-cyclin-d2-knock-out-mice-produces-very-limited-phenotypic-changes
#16
REVIEW
Robert K Filipkowski, Leszek Kaczmarek
The discovery of new neurons being produced in the brains of adult mammals (adult brain neurogenesis) began a quest to determine the function(s) of these cells. Major hypotheses in the field have assumed that these neurons play pivotal role, in particular, in learning and memory phenomena, mood control, and epileptogenesis. In our studies summarized herein, we used cyclin D2 knockout (KO) mice, as we have shown that cyclin D2 is the key factor in adult brain neurogenesis and thus its lack produces profound impairment of the process...
April 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28433460/stimulatory-effect-of-desipramine-on-lung-metastases-of-adenocarcinoma-madb-106-in-stress-highly-sensitive-and-stress-non-reactive-rats
#17
Beata Grygier, Marta Kubera, Danuta Wrona, Adam Roman, Agnieszka Basta-Kaim, Piotr Gruca, Mariusz Papp, Zofia Rogoz, Monika Leskiewicz, Boguslawa Budziszewska, Magdalena Regulska, Barbara Korzeniak, Katarzyna Curzytek, Katarzyna Glombik, Joanna Slusarczyk, Michael Maes, Wladyslaw Lason
The effect of antidepressant drugs on tumor progress is very poorly recognized. The aim of the present study was to examine the effect of individual reactivity to stress and 24-day desipramine (DES) administration on the metastatic colonization of adenocarcinoma MADB 106 cells in the lungs of Wistar rats. Wistar rats were subjected to stress procedure according to the chronic mild stress (CMS) model of depression for two weeks and stress highly-sensitive (SHS) and stress non-reactive (SNR) rats were selected...
April 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28433456/cytokine-alterations-and-cognitive-impairment-in-major-depressive-disorder-from-putative-mechanisms-to-novel-treatment-targets
#18
REVIEW
Błażej Misiak, Jan Aleksander Beszłej, Kamila Kotowicz, Monika Szewczuk-Bogusławska, Jerzy Samochowiec, Jolanta Kucharska-Mazur, Dorota Frydecka
Overwhelming evidence indicates the involvement of immune-inflammatory processes in the pathophysiology of major depressive disorder (MDD). Peripheral cytokine alterations serve as one of most consistently reported indices of subthreshold inflammatory state observed in MDD. Although cytokines cannot pass directly through the blood-brain barrier, a number of transport mechanisms have been reported. In addition, peripheral cytokines may impact central nervous system via downstream effectors of their biological activity...
April 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28433385/perioperative-risks-of-narcolepsy-in-patients-undergoing-general-anesthesia-a-case-control-study
#19
Alexandre N Cavalcante, Ryan E Hofer, Maja Tippmann-Peikert, Juraj Sprung, Toby N Weingarten
STUDY OBJECTIVE: To compare the perioperative outcomes between patients with narcolepsy and matched controls undergoing anesthetic management. DESIGN: Retrospective 2:1 matched study design. SETTING: Large tertiary medical center. PATIENTS: Narcoleptic patients who underwent general anesthesia from January 1, 2011, through September 30, 2015, were matched with controls by age, sex, and type and year of surgery. MEASUREMENTS: Medical records were reviewed for episodes of respiratory depression during phase I recovery and for other meaningful perioperative outcomes...
April 19, 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28432029/suppression-of-reward-induced-dopamine-release-in-the-nucleus-accumbens-in-animal-models-of-depression-differential-responses-to-drug-treatment
#20
Saki Minami, Hiroshi Satoyoshi, Soichiro Ide, Takeshi Inoue, Mitsuhiro Yoshioka, Masabumi Minami
Anhedonia, the loss of interest or pleasure in previously enjoyable activities, is a core symptom of major depressive disorder, suggesting that the brain reward system may be dysfunctional in this condition. Neurochemical changes in the mesolimbic dopamine (DA) system are not fully understood in animal models of depression. We investigated reward (30% sucrose intake)-induced DA release in the nucleus accumbens (NAc) and the effect of chronic treatment with the antidepressant escitalopram (5mg/kg, intraperitoneally twice daily for 3 weeks) in two animal models of depression...
April 18, 2017: Neuroscience Letters
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