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https://www.readbyqxmd.com/read/28531264/cariprazine-exhibits-anxiolytic-and-dopamine-d3-receptor-dependent-antidepressant-effects-in-the-chronic-stress-model
#1
Vanya Duric, Mounira Banasr, Tina Franklin, Ashley Lepack, Nika Adham, Béla Kiss, István Gyertyán, Ronald S Duman
Background: Cariprazine, a D3-preferring dopamine D2/D3 receptor partial agonist, is a new antipsychotic drug recently approved in the US for the treatment of schizophrenia and bipolar mania. We recently demonstrated that cariprazine also has significant anti-anhedonic-like effects in rats subjected to chronic stress; however, the exact mechanism of action for cariprazine's antidepressant-like properties is not known. Thus, in this study we examined whether the effects of cariprazine are mediated by dopamine D3 receptors...
May 22, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28528594/with-a-little-help-from-my-friends-racial-and-gender-differences-in-the-role-of-social-support-in-later-life-depression-medication-adherence
#2
Lauren B Gerlach, Janet Kavanagh, Daphne Watkins, Claire Chiang, Hyungjin M Kim, Helen C Kales
BACKGROUND: Social support has been shown to be an important factor in improving depression symptom outcomes, yet less is known regarding its impact on antidepressant medication adherence. This study sought to evaluate the role of perceived social support on adherence to new antidepressant medication prescriptions in later-life depression. METHODS: Data from two prospective observational studies of participants ≥60 years old, diagnosed with depression, and recently prescribed a new antidepressant (N = 452)...
May 22, 2017: International Psychogeriatrics
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/28517175/comparison-of-the-human-a2a-adenosine-receptor-recognition-by-adenosine-and-inosine-new-insights-from-supervised-molecular-dynamics-simulations
#4
Giuseppe Deganutti, Ajith Welihinda, Stefano Moro
Adenosine deaminase converts adenosine to inosine. Differently by adenosine, modest attention has been dedicated to the physiological roles of inosine. Nevertheless, recent studies demonstrate that inosine has neuroprotective, cardioprotective immunomodulatory, and antidepressive effects. It has been recently reported by Welihinda and collaborators that inosine is a less potent agonist than adenosine at the A2A AR. To better depict the differences in receptor recognition mechanism of both adenosine and inosine, in this work supervised molecular dynamics (SuMD) simulations have been performed and analyzed...
May 18, 2017: ChemMedChem
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
#5
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/28501167/polyoxometalate-incorporated-polymer-monolith-microextraction-for-highly-selective-extraction-of-antidepressants-in-undiluted-urine
#6
Jiao Cai, Gang-Tian Zhu, Xiao-Mei He, Zheng Zhang, Ren-Qi Wang, Yu-Qi Feng
In this work, a polyoxometalate (POM) incorporated polymer monolith microextraction (PMME) was successfully proposed and employed in the selective extraction of basic antidepressants in undiluted urine sample. This hybrid monolith exhibited strong cation-exchange interaction (SCX) with positively charged antidepressants when pH was 3.0, because of the multiple ionizable moieties on polyanionic POM. As such, antidepressants in complex sample matrices were efficiently extracted by the monolith, and the matrix effect was significantly reduced...
August 1, 2017: Talanta
https://www.readbyqxmd.com/read/28500556/reversing-glioma-malignancy-a-new-look-at-the-role-of-antidepressant-drugs-as-adjuvant-therapy-for-glioblastoma-multiforme
#7
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/28499898/antidepressant-drugs-for-beta-amyloid-induced-depression-a-new-standpoint
#8
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/28497257/-therapy-of-migranes
#9
D Holle-Lee, S Nägel, C Gaul
In migraine attack treatment analgesics such as nonsteroidal anti-inflammatory drugs and triptans can be utilized. The efficacy of acute attack treatment is relevant to prevent migraine chronification. For prophylactic treatment β‑blockers, tricyclic antidepressants, flunarizine, antiepileptics and onabotulinumtoxin A are available. There is evidence that some other substances (e. g. sartans) are also efficacious in this regard. Furthermore, nondrug approaches are essential in migraine therapy. Early education and prophylactic treatment of patients at risk may prevent from medication overuse headache...
May 11, 2017: Der Nervenarzt
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
#10
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
https://www.readbyqxmd.com/read/28491480/new-treatment-strategies-of-depression-based-on-mechanisms-related-to-neuroplasticity
#11
REVIEW
Yu-Jhen Huang, Hsien-Yuan Lane, Chieh-Hsin Lin
Major depressive disorder is a severe and complex mental disorder. Impaired neurotransmission and disrupted signalling pathways may influence neuroplasticity, which is involved in the brain dysfunction in depression. Traditional neurobiological theories of depression, such as monoamine hypothesis, cannot fully explain the whole picture of depressive disorders. In this review, we discussed new treatment directions of depression, including modulation of glutamatergic system and noninvasive brain stimulation. Dysfunction of glutamatergic neurotransmission plays an important role in the pathophysiology of depression...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28488329/phosphodiesterase-1b-deletion-confers-depression-like-behavioral-resistance-separate-from-stress-related-effects-in-mice
#12
Jillian R Hufgard, Michael T Williams, Charles V Vorhees
Phosphodiesterase-1b (Pde1b) is highly expressed in striatum, dentate gyrus, CA3, and substantia nigra. In a new Floxed Pde1b x Cre(CMV) global knock-out (KO) mouse model we show an immobility resistance phenotype that recapitulates that found in constitutive Pde1b KO mice. We use this new mouse model to show that the resistance to acute stress-induced depression-like phenotype is not the product of changes in locomotor activity or reactivity to other stressors (learned helplessness, novelty suppressed feeding, or dexamethasone suppression), and is not associated with anhedonia using the sucrose preference test...
May 10, 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/28488294/medical-undergraduate-survey-on-headache-education-in-singapore-knowledge-perceptions-and-assessment-of-unmet-needs
#13
Jonathan Jia Yuan Ong, Yee Cheun Chan
BACKGROUND: There have been no prior studies assessing the status of undergraduate headache training and education in Singapore. Unmet needs of undergraduate medical students in terms of knowledge-practice gaps pertaining to diagnosis and management of headache disorders are unknown. The possible underemphasis of this aspect of the curriculum as compared to other chronic conditions such as diabetes mellitus has also not been ascertained. OBJECTIVE: The aim of this article is to assess the knowledge base and perceptions, thereby identifying the unmet needs of headache disorder education in undergraduate medical students...
May 9, 2017: Headache
https://www.readbyqxmd.com/read/28485406/inducing-a-long-term-potentiation-in-the-dentate-gyrus-is-sufficient-to-produce-rapid-antidepressant-like-effects
#14
A Kanzari, C Bourcier-Lucas, A Freyssin, D N Abrous, N Haddjeri, G Lucas
Recent hypotheses propose that one prerequisite to obtain a rapid antidepressant (AD) effect would reside in processes of synaptic reinforcement occurring within the dentate gyrus (DG) of the hippocampus independently from neurogenesis. However, to date no relationship has been established between an increased DG synaptic plasticity, and rapid AD-like action. To the best of our knowledge, this study shows for the first time that inducing a long-term potentiation (LTP) within the DG by stimulating the perforant pathway (PP) is sufficient to induce such effects...
May 9, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28480882/dysfunction-of-microglial-stat3-alleviates-depressive-behavior-via-neuron-microglia-interactions
#15
Sun-Ho Kwon, Jeong-Kyu Han, Moonseok Choi, Yong-Jin Kwon, Sung Joon Kim, Eun Hee Yi, Jae-Cheon Shin, Ik-Hyun Cho, Byung-Hak Kim, Sang Jeong Kim, Sang-Kyu Ye
Neuron-microglia interactions play a crucial role in maintaining the neuroimmune system. The balance of neuroimmune system has emerged as an important process in the pathophysiology of depression. However, how neuron-microglia interactions contribute to major depressive disorders has been poorly understood. Herein, we demonstrated that microglia-derived synaptic changes induced antidepressive-like behavior by using microglia-specific signal transducer and activator of transcription 3 (STAT3) knockout (STAT3(fl/fl);LysM-Cre(+/-)) mice...
May 8, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28480819/should-a-routine-genotyping-of-cyp2d6-and-cyp2c19-genetic-polymorphisms-be-recommended-to-predict-venlafaxine-efficacy-in-depressed-patients-treated-in-psychiatric-settings
#16
Adela Taranu, Romain Colle, Florence Gressier, Khalil El Asmar, Laurent Becquemont, Emmanuelle Corruble, Céline Verstuyft
AIM: The antidepressant venlafaxine (VEN) is metabolized by CYP2D6 and CYP2C19. The aim of this study was to assess the relevance of generalizing to daily practice the genotyping of CYP2D6 and CYP2C19 to predict VEN efficacy in depressed patients treated in psychiatric settings. PATIENTS & METHODS: This study was nested in a naturalistic cohort, with 206 patients requiring a new antidepressant treatment and genotyped for CYP2D6 *3, *4, *5 del, *6, *2xN, *10, *41 and CYP2C19 *2, *3, *4, *5, *17 alleles...
May 8, 2017: Pharmacogenomics
https://www.readbyqxmd.com/read/28474547/new-hmao-a-inhibitors-with-potential-antidepressant-activity-design-synthesis-biological-screening-and-evaluation-of-pharmacological-activity
#17
Begüm Evranos Aksöz, Gülberk Uçar, Sadık Taşkın Taş, Erkan Aksöz, Kemal Yelekçi, Açelya Erikçi, Yıldırım Sara, Alper İskit
A series of new 2-pyrazoline and hydrazone derivatives were synthesized. Their structural elucidation was performed by IR, 1H NMR, 13C NMR, mass spectral data, and elemental analyses. The MAO inhibitory and antidepressant activities of the novel compounds were investigated by in vitro and in vivo screening tests. All compounds inhibited recombinant hMAO-A potently, competetively and reversibly. All of the compounds inhibited hMAO-A more potently than moclobemide, the well known reversible MAO-A inhibitor. Compounds 8a, 8b, 8c, 8d, 8e and 8g inhibited hMAO-A more selectively than moclobemide...
May 3, 2017: Combinatorial Chemistry & High Throughput Screening
https://www.readbyqxmd.com/read/28470549/epidemic-use-of-benzodiazepines-among-older-adults-in-israel-epidemiology-and-leverage-points-for-improvement
#18
Michael A Steinman, Marcelo Low, Ran D Balicer, Efrat Shadmi
BACKGROUND: Benzodiazepines and benzodiazepine-receptor agonists (BDZRAs, often known as "Z-drugs") are commonly used in older adults despite well-documented harms. OBJECTIVE: To evaluate patterns of benzodiazepine and BDZRA use in Israel, focusing on potential leverage points where quality improvement initiatives might effectively curtail new use or the transition from intermittent to chronic use. DESIGN AND PARTICIPANTS: We used national electronic medical data to assess a 10% random sample of adults receiving care in Clalit Health Services, which serves half of Israel's population...
May 3, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28469132/population-scale-data-reveals-the-antidepressant-effects-of-ketamine-and-other-therapeutics-approved-for-non-psychiatric-indications
#19
Isaac V Cohen, Tigran Makunts, Rabia Atayee, Ruben Abagyan
Current therapeutic approaches to depression fail for millions of patients due to lag in clinical response and non-adherence. Here we provide new support for the antidepressant effect of an anesthetic drug, ketamine, by Inverse-Frequency Analysis of eight million reports from the FDA Adverse Effect Reporting System. The results of the examination of population scale data revealed that patients who received ketamine had significantly lower frequency of reports of depression than patients who took any other combination of drugs for pain...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28466423/chronic-pruritus-current-and-emerging-treatment-options
#20
REVIEW
Manuel P Pereira, Sonja Ständer
Chronic pruritus remains a central societal issue because of its high occurrence and the substantial decrease in quality of life it may cause to affected individuals. Not only dermatological conditions, but also systemic, neurological, or psychiatric diseases may lead to chronic pruritus. Additionally, various underlying conditions may coexist or the cause may be unknown. Due to its heterogeneity, the therapeutic approach is complex and remains a challenge for the clinician. Basic measures such as emollients to avoid xerosis and treatment of the underlying disease should be initiated regardless of the duration of the symptom...
June 2017: Drugs
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