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https://www.readbyqxmd.com/read/29028939/serotonin-2a-receptor-signaling-underlies-lsd-induced-alteration-of-the-neural-response-to-dynamic-changes-in-music
#1
Frederick S Barrett, Katrin H Preller, Marcus Herdener, Petr Janata, Franz X Vollenweider
Classic psychedelic drugs (serotonin 2A, or 5HT2A, receptor agonists) have notable effects on music listening. In the current report, blood oxygen level-dependent (BOLD) signal was collected during music listening in 25 healthy adults after administration of placebo, lysergic acid diethylamide (LSD), and LSD pretreated with the 5HT2A antagonist ketanserin, to investigate the role of 5HT2A receptor signaling in the neural response to the time-varying tonal structure of music. Tonality-tracking analysis of BOLD data revealed that 5HT2A receptor signaling alters the neural response to music in brain regions supporting basic and higher-level musical and auditory processing, and areas involved in memory, emotion, and self-referential processing...
September 28, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29028556/buspirone-maintenance-does-not-alter-the-reinforcing-subjective-and-cardiovascular-effects-of-intranasal-methamphetamine
#2
Anna R Reynolds, Justin C Strickland, William W Stoops, Joshua A Lile, Craig R Rush
BACKGROUND: Medications development efforts for methamphetamine-use disorder have targeted central monoamines because these systems are directly involved in the effects of methamphetamine. Buspirone is a dopamine autoreceptor and D3 receptor antagonist and partial agonist at serotonin 1A receptors, making it a logical candidate medication for methamphetamine-use disorder. Buspirone effects on abuse-related behaviors of methamphetamine have been mixed in clinical and preclinical studies...
September 22, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29026429/markers-of-neuroprotection-of-combined-epa-and-dha-provided-by-fish-oil-are-higher-than-those-of-epa-nannochloropsis-and-dha-schizochytrium-from-microalgae-oils-in-wistar-rats
#3
Paula A Lopes, Narcisa M Bandarra, Susana V Martins, Joana Martinho, Cristina M Alfaia, Marta S Madeira, Carlos Cardoso, Cláudia Afonso, Maria C Paulo, Rui M A Pinto, José L Guil-Guerrero, José A M Prates
BACKGROUND: To overcome the current overexploitation of fish rich in n-3 long chain polyunsaturated fatty acids (LCPUFA), microalgae have become a promising marine lipid source. The purpose of this study was to assess eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3), isolated or combined from distinct marine origins, on the promotion of neuroprotective effects. METHODS: The experiment lasted for 10 weeks and involved 32 Wistar rats, divided into 4 diets (n = 8): a diet rich in milk fat was taken as control (Milk Fat) and compared to n-3 LCPUFA enriched diets, either in EPA + DHA form through fish oil (Fish Oil), or EPA through Nannochloropsis oil (Nanno), or DHA through Schizochytrium oil (Schyzo), while maintaining Milk Fat incorporation...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29025356/associations-between-sleep-deprivation-and-salivary-testosterone-levels-in-male-university-students-a-prospective-cohort-study
#4
Mahmoud Suleiman Abu-Samak, Beisan Ali Mohammad, May Ibrahim Abu-Taha, Luai Zidan Hasoun, Shady Helmi Awwad
Sleep deprivation is a common health problem that is growing rapidly worldwide and it is associated with short- and long-term impacts on health. The aim of this study was to detect potential predictors of salivary testosterone (sT) association with sleep deprivation in Arab male university students. In this prospective cohort study, 77 university male students in the age range of 18 to 26 years were divided into two groups, sleep-deprived (SD) participants and non-sleep-deprived (NSD) participants. Sleep deprivation was defined as sleeping less than 5 hr per night...
October 1, 2017: American Journal of Men's Health
https://www.readbyqxmd.com/read/29024901/impact-of-initial-medication-non-adherence-to-ssris-on-medical-visits-and-sick-leaves
#5
Ignacio Aznar-Lou, María Iglesias-González, Montserrat Gil-Girbau, Antoni Serrano-Blanco, Ana Fernández, María Teresa Peñarrubia-María, Ramón Sabés-Figuera, Ana Gabriela Murrugarra-Centurión, Marian March-Pujol, Mireia Bolívar-Prados, Maria Rubio-Valera
BACKGROUND: Initial medication non-adherence (IMNA) to antidepressants, which are commonly used to treat depression in primary care (PC), is around 6-12%. Although it is well known that post-initial non-adherence to antidepressants increases the cost of depression, the impact of IMNA on cost is unknown. The aim of this study is to assess the impact of IMNA to Selective Serotonin Reuptake Inhibitors (SSRI) on medical visits and sick leave in patients with depression treated in PC in Catalonia (Spain)...
October 3, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29024681/potentiation-of-morphine-induced-antinociception-and-locomotion-by-citalopram-is-accompanied-by-anxiolytic-like-effects
#6
María J Varela, Arlet M Acanda de la Rocha, Alvaro Díaz, Juan F Lopez-Gimenez
Morphine and related opioids are the mainstay of analgesic treatment, especially in patients suffering chronic pain. Besides their antinociceptive effects they may also exhibit anxiolytic-like properties that could contribute to pain relief. The pharmacological manipulation of the serotonergic system may not only modulate pain transmission and processing but also other behavioral effects of opioids. The present study aimed to analyze the effect of the concurrent treatment with citalopram, a selective serotonin reuptake inhibitor, on the antinociceptive, locomotor and anxiety-related effects induced by acute and subchronic administration of morphine in mice...
October 9, 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/29024676/perinatal-fluoxetine-prevents-the-effect-of-pre-gestational-maternal-stress-on-5-ht-in-the-pfc-but-maternal-stress-has-enduring-effects-on-mpfc-synaptic-structure-in-offspring
#7
Mary Gemmel, Nikolaos Kokras, Christina Dalla, Jodi L Pawluski
Maternal affective disorders are frequently treated with selective serotonin reuptake inhibitor medications (SSRIs); with up to 10% of women being prescribed these medications during pregnancy. Infant development depends on the early serotonergic environment, which is altered by perinatal SSRIs, raising concern about how these medications affect neural outcomes. While clinical and preclinical research suggests an impact of SSRIs on the developing brain, more research is needed to determine the effects on neuroplasticity, the serotonergic system, and the hypothalamic-pituitary-adrenal axis in neural regions mediating behavior...
October 9, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29024666/dynamics-of-gut-brain-communication-underlying-hunger
#8
Lisa R Beutler, Yiming Chen, Jamie S Ahn, Yen-Chu Lin, Rachel A Essner, Zachary A Knight
Communication between the gut and brain is critical for homeostasis, but how this communication is represented in the dynamics of feeding circuits is unknown. Here we describe nutritional regulation of key neurons that control hunger in vivo. We show that intragastric nutrient infusion rapidly and durably inhibits hunger-promoting AgRP neurons in awake, behaving mice. This inhibition is proportional to the number of calories infused but surprisingly independent of macronutrient identity or nutritional state...
October 11, 2017: Neuron
https://www.readbyqxmd.com/read/29022279/the-role-of-%C3%AE-1-and-%C3%AE-2-adrenoceptor-subtypes-in-the-vasopressor-responses-induced-by-dihydroergotamine-in-ritanserin-pretreated-pithed-rats
#9
Eduardo Rivera-Mancilla, Victor H Avilés-Rosas, Guadalupe Manrique-Maldonado, Alain H Altamirano-Espinoza, Belinda Villanueva-Castillo, Antoinette MaassenVanDenBrink, Carlos M Villalón
BACKGROUND: Dihydroergotamine (DHE) is an acute antimigraine agent that displays affinity for dopamine D2-like receptors, serotonin 5-HT1/2 receptors and α1/α2-adrenoceptors. Since activation of vascular α1/α2-adrenoceptors results in systemic vasopressor responses, the purpose of this study was to investigate the specific role of α1- and α2-adrenoceptors mediating DHE-induced vasopressor responses using several antagonists for these receptors. METHODS: For this purpose, 135 male Wistar rats were pithed and divided into 35 control and 100 pretreated i...
October 11, 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/29021994/stereotaxic-adeno-associated-virus-injection-and-cannula-implantation-in-the-dorsal-raphe-nucleus-of-mice
#10
Patrícia A Correia, Sara Matias, Zachary F Mainen
Optogenetic methods are now widespread in neuroscience research. Here we present a detailed surgical procedure to inject adeno-associated viruses and implant optic fiber cannulas in the dorsal raphe nucleus (DRN) of living mice. Combined with transgenic mouse lines, this protocol allows specific targeting of serotonin-producing neurons in the brain. It includes fixing a mouse in a stereotaxic frame, performing a craniotomy, virus injection and fiber implantation. Animals can be later used in behavioral experiments, combined with optogenetic manipulations (Dugué et al...
September 20, 2017: Bio-protocol
https://www.readbyqxmd.com/read/29021832/pharmacogenomics-in-the-treatment-of-mood-disorders-strategies-and-opportunities-for-personalized-psychiatry
#11
REVIEW
Azmeraw T Amare, Klaus Oliver Schubert, Bernhard T Baune
Personalized medicine (personalized psychiatry in a specific setting) is a new model towards individualized care, in which knowledge from genomics and other omic pillars (microbiome, epigenomes, proteome, and metabolome) will be combined with clinical data to guide efforts to new drug development and targeted prescription of the existing treatment options. In this review, we summarize pharmacogenomic studies in mood disorders that may lay the foundation towards personalized psychiatry. In addition, we have discussed the possible strategies to integrate data from omic pillars as a future path to personalized psychiatry...
September 2017: EPMA Journal
https://www.readbyqxmd.com/read/29021759/effects-of-gladiolus-dalenii-on-the-stress-induced-behavioral-neurochemical-and-reproductive-changes-in-rats
#12
David Fotsing, Gwladys T Ngoupaye, Agnes C Ouafo, Stephanie K J Njapdounke, Yongabi A Kenneth, Elisabeth Ngo Bum
Gladiolus dalenii is a plant commonly used in many regions of Cameroon as a cure for various diseases like headaches, epilepsy, schizophrenia, and mood disorders. Recent studies have revealed that the aqueous extract of G. dalenii (AEGD) exhibited antidepressant-like properties in rats. Therefore, we hypothesized that the AEGD could protect from the stress-induced behavioral, neurochemical, and reproductive changes in rats. The objective of the present study was to elucidate the effect of the AEGD on behavioral, neurochemical, and reproductive characteristics, using female rats subjected to chronic immobilization stress...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29020418/striatal-n-acetylaspartate-synthetase-shati-nat8l-regulates-depression-like-behaviors-via-mglur3-mediated-serotonergic-suppression-in-mice
#13
Yoshiaki Miyamoto, Noriyuki Iegaki, Kequan Fu, Yudai Ishikawa, Kazuyuki Sumi, Sota Azuma, Kyosuke Uno, Shin-Ichi Muramatsu, Atsumi Nitta
Background: Several clinical studies have suggested that N-acetylaspartate (NAA) and N-acetylaspartylglutamate (NAAG) levels in the human brain are associated with various psychiatric disorders, including major depressive disorder. We have previously identified Shati/Nat8l, an N-acetyltransferase, in the brain using an animal model of psychosis. Shati/Nat8l synthesizes NAA from L-aspartate and acetyl-coenzyme A. Further, NAA is converted into NAAG, a neurotransmitter for metabotropic glutamate receptor 3 (mGluR3)...
August 31, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29020405/neuroticism-associates-with-cerebral-in-vivo-serotonin-transporter-binding-differently-in-males-and-females
#14
Lauri Tuominen, Jouko Miettunen, Dara M Cannon, Wayne C Drevets, Vibe G Frokjaer, Jussi Hirvonen, Masanori Ichise, Peter S Jensen, Liisa Keltikangas-Järvinen, Jacqueline M Klaver, Gitte M Knudsen, Akihiro Takano, Tetsuya Suhara, Jarmo Hietala
Background: Neuroticism is a major risk factor for affective disorders. This personality trait has been hypothesized to associate with synaptic availability of the serotonin transporter (5-HTT), which critically controls serotonergic tone in the brain. However, earlier studies linking neuroticism and 5-HTT have failed to produce converging findings. Because sex affects both the serotonergic system and the risk that neuroticism poses to the individual, sex may modify the association between neuroticism and 5-HTT, but this question has not been investigated by previous studies...
August 7, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29020387/reversal-of-stress-induced-social-interaction-deficits-by-buprenorphine
#15
Caroline A Browne, Edgardo Falcon, Shivon A Robinson, Olivier Berton, Irwin Lucki
Background: Patients with post-traumatic stress disorder (PTSD) frequently report persistent problems with social interactions, emerging after a traumatic experience. Chronic social defeat stress (CSDS) is a widely used rodent model of stress that produces robust and sustained social avoidance behavior. The avoidance of other rodents can be reversed by 28 days of treatment with selective serotonin reuptake inhibitors (SSRIs), the only pharmaceutical class approved by the U. S. Food and Drug Administration for treating PTSD...
August 31, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29019661/venlafaxine-in-embryos-stimulates-neurogenesis-and-disrupts-larval-behavior-in-zebrafish
#16
William Andrew Thompson, Victoria Arnold, Mathilakath M Vijayan
Venlafaxine, a widely prescribed antidepressant, is a selective serotonin and norepinephrine re-uptake inhibitor in humans, and this drug is prevalent in municipal wastewater effluents. While studies have shown that this drug affects juvenile fish behavior, little is known about the developmental impact on non-target aquatic animals. We tested the hypothesis that venlafaxine deposition in the egg, mimicking maternal transfer of this antidepressant, disrupts developmental programming using zebrafish (Danio rerio) as a model...
October 11, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29019093/triptans-and-cgrp-blockade-impact-on-the-cranial-vasculature
#17
REVIEW
Silvia Benemei, Francesca Cortese, Alejandro Labastida-Ramírez, Francesca Marchese, Lanfranco Pellesi, Michele Romoli, Anne Luise Vollesen, Christian Lampl, Messoud Ashina
The trigeminovascular system plays a key role in the pathophysiology of migraine. The activation of the trigeminovascular system causes release of various neurotransmitters and neuropeptides, including serotonin and calcitonin gene-related peptide (CGRP), which modulate pain transmission and vascular tone. Thirty years after discovery of agonists for serotonin 5-HT1B and 5-HT1D receptors (triptans) and less than fifteen after the proof of concept of the gepant class of CGRP receptor antagonists, we are still a long way from understanding their precise site and mode of action in migraine...
October 10, 2017: Journal of Headache and Pain
https://www.readbyqxmd.com/read/29018523/comparative-study-of-two-protocols-for-quantitative-image-analysis-of-serotonin-transporter-clustering-in-lymphocytes-a-putative-biomarker-of-therapeutic-efficacy-in-major-depression
#18
Raquel Romay-Tallon, Tania Rivera-Baltanas, Josh Allen, Jose M Olivares, Lisa E Kalynchuk, Hector J Caruncho
BACKGROUND: The pattern of serotonin transporter clustering on the plasma membrane of lymphocytes extracted from human whole blood samples has been identified as a putative biomarker of therapeutic efficacy in major depression. Here we evaluated the possibility of performing a similar analysis using blood smears obtained from rats, and from control human subjects and depression patients. We hypothesized that we could optimize a protocol to make the analysis of serotonin protein clustering in blood smears comparable to the analysis of serotonin protein clustering using isolated lymphocytes...
2017: Biomarker Research
https://www.readbyqxmd.com/read/29018367/treatment-of-comorbid-alcohol-dependence-and-anxiety-disorder-review-of-the-scientific-evidence-and-recommendations-for-treatment
#19
REVIEW
Carmen Gimeno, Marisa Luisa Dorado, Carlos Roncero, Nestor Szerman, Pablo Vega, Vicent Balanzá-Martínez, F Javier Alvarez
Patients with alcohol-use disorders (AUDs) have a high prevalence of anxiety disorders (AnxDs). "Co-occurring disorders" refers to the coexistence of an AUD and/or drug related disorders with another non-addictive psychiatric disorder. The aim of this study was to assess the effectiveness of psychopharmacological treatments and psychotherapy in patients with AUD and AnxD and to propose recommendations for the treatment of patients with comorbid AnxDs and AUDs. Randomized clinical trials, meta-analyses, and clinical guidelines were retrieved from PubMed, Embase, and Cochrane databases...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29018333/cadherin-13-deficiency-increases-dorsal-raphe-5-ht-neuron-density-and-prefrontal-cortex-innervation-in-the-mouse-brain
#20
Andrea Forero, Olga Rivero, Sina Wäldchen, Hsing-Ping Ku, Dominik P Kiser, Yvonne Gärtner, Laura S Pennington, Jonas Waider, Patricia Gaspar, Charline Jansch, Frank Edenhofer, Thérèse J Resink, Robert Blum, Markus Sauer, Klaus-Peter Lesch
Background: During early prenatal stages of brain development, serotonin (5-HT)-specific neurons migrate through somal translocation to form the raphe nuclei and subsequently begin to project to their target regions. The rostral cluster of cells, comprising the median and dorsal raphe (DR), innervates anterior regions of the brain, including the prefrontal cortex. Differential analysis of the mouse 5-HT system transcriptome identified enrichment of cell adhesion molecules in 5-HT neurons of the DR. One of these molecules, cadherin-13 (Cdh13) has been shown to play a role in cell migration, axon pathfinding, and synaptogenesis...
2017: Frontiers in Cellular Neuroscience
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