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https://www.readbyqxmd.com/read/28515818/pharmacogenomic-testing-for-psychotropic-medication-selection-a-systematic-review-of-the-assurex-genesight-psychotropic-test
#1
(no author information available yet)
BACKGROUND: A large proportion of the Ontario population lives with a diagnosed mental illness. Nearly 5% of Ontarians have major depressive disorder, and another 5% have another type of depressive disorder, bipolar disorder, schizophrenia, anxiety, or some other disorder not otherwise specified. Medications are commonly used to treat mental illness, but choosing the right medication for each patient is challenging, and more than 40% of patients discontinue their medication within 90 days because of adverse effects or lack of response...
2017: Ontario Health Technology Assessment Series
https://www.readbyqxmd.com/read/28485378/phf8-loss-confers-resistance-to-depression-like-and-anxiety-like-behaviors-in-mice
#2
Ryan M Walsh, Erica Y Shen, Rosemary C Bagot, Anthony Anselmo, Yan Jiang, Behnam Javidfar, Gregory J Wojtkiewicz, Jennifer Cloutier, John W Chen, Ruslan Sadreyev, Eric J Nestler, Schahram Akbarian, Konrad Hochedlinger
PHF8 is a histone demethylase with specificity for repressive modifications. While mutations of PHF8 have been associated with cognitive defects and cleft lip/palate, its role in mammalian development and physiology remains unexplored. Here, we have generated a Phf8 knockout allele in mice to examine the consequences of Phf8 loss for development and behaviour. Phf8 deficient mice neither display obvious developmental defects nor signs of cognitive impairment. However, we report a striking resiliency to stress-induced anxiety- and depression-like behaviour on loss of Phf8...
May 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28456840/rapid-evidence-review-of-the-comparative-effectiveness-harms-and-cost-effectiveness-of-pharmacogenomics-guided-antidepressant-treatment-versus-usual-care-for-major-depressive-disorder
#3
REVIEW
Kimberly Peterson, Eric Dieperink, Johanna Anderson, Erin Boundy, Lauren Ferguson, Mark Helfand
OBJECTIVE: This study aims to conduct an evidence review of the effectiveness, harms, and cost-effectiveness of pharmacogenomics-guided antidepressant treatment for major depressive disorder. METHODS: We searched MEDLINE®, the Cochrane Central Registry of Controlled Trials, and PsycINFO through February 2017. We used prespecified criteria to select studies, abstract data, and rate internal validity and strength of the evidence (PROSPERO number CRD42016036358). RESULTS: We included two randomized trials (RCT), five controlled cohort studies, and six modeling studies of mostly women in their mid-40s with few comorbidities...
April 29, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28397704/the-influence-of-tsa-and-vpa-on-the-in-vitro-differentiation-of-bone-marrow-mesenchymal-stem-cells-into-neuronal-lineage-cells-gene-expression-studies
#4
Anna Fila-Danilow, Paulina Borkowska, Monika Paul-Samojedny, Malgorzata Kowalczyk, Jan Kowalski
INTRODUCTION: Epigenetic mechanisms regulate the transcription of genes, which can affect the differentiation of MSCs. The aim of the current work is to determine how the histone deacetylase inhibitors TSA and VPA affect the expression of neuronal lineage genes in a culture of rat MSCs (rMSCs). MATERIALS AND METHODS: We analyzed the expression of early neuron marker gene (Tubb3), mature neuron markers genes (Vacht, Th, Htr2a) and the oligodendrocyte progenitor marker gene (GalC)...
March 27, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28394294/relationship-between-occupational-stress-5-ht2a-receptor-polymorphisms-and-mental-health-in-petroleum-workers-in-the-xinjiang-arid-desert-a-cross-sectional-study
#5
Ting Jiang, Hua Ge, Jian Sun, Rong Li, Rui Han, Jiwen Liu
At present, there is growing interest in research examining the relationship between occupational stress and mental health. Owing to the socioeconomic impact of occupational stress and the unique environment of petroleum workers in Xinjiang, a cross-sectional study was carried out between April and December 2015 to investigate the relationship between occupational stress, 5-hydroxytryptamine receptor (5-HTR2A) genotype, and mental health. A total of 1485 workers were selected. The Symptom Checklist 90 was used to assess nine classes of psychological symptoms...
April 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28265857/differences-in-5-ht2a-and-mglu2-receptor-expression-levels-and-repressive-epigenetic-modifications-at-the-5-ht2a-promoter-region-in-the-roman-low-rla-i-and-high-rha-i-avoidance-rat-strains
#6
Luna Fomsgaard, Jose L Moreno, Mario de la Fuente Revenga, Tomasz Brudek, Dea Adamsen, Cristobal Rio-Alamos, Justin Saunders, Anders Bue Klein, Ignasi Oliveras, Toni Cañete, Gloria Blazquez, Adolf Tobeña, Albert Fernandez-Teruel, Javier Gonzalez-Maeso, Susana Aznar
The serotonin 2A (5-HT2A) and metabotropic glutamate 2 (mGlu2) receptors regulate each other and are associated with schizophrenia. The Roman high- (RHA-I) and the Roman low- (RLA-I) avoidance rat strains present well-differentiated behavioral profiles, with the RHA-I strain emerging as a putative genetic rat model of schizophrenia-related features. The RHA-I strain shows increased 5-HT2A and decreased mGlu2 receptor binding levels in prefrontal cortex (PFC). Here, we looked for differences in gene expression and transcriptional regulation of these receptors...
March 6, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28264500/geneanalytics-pathway-analysis-and-genetic-overlap-among-autism-spectrum-disorder-bipolar-disorder-and-schizophrenia
#7
Naveen S Khanzada, Merlin G Butler, Ann M Manzardo
Bipolar disorder (BPD) and schizophrenia (SCH) show similar neuropsychiatric behavioral disturbances, including impaired social interaction and communication, seen in autism spectrum disorder (ASD) with multiple overlapping genetic and environmental influences implicated in risk and course of illness. GeneAnalytics software was used for pathway analysis and genetic profiling to characterize common susceptibility genes obtained from published lists for ASD (792 genes), BPD (290 genes) and SCH (560 genes). Rank scores were derived from the number and nature of overlapping genes, gene-disease association, tissue specificity and gene functions subdivided into categories (e...
February 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208011/glucosylsphingosine-activates-serotonin-receptor-2a-and-2b-implication-of-a-novel-itch-signaling-pathway
#8
Ramsha Afzal, Won-Sik Shim
Recent reports claimed that glucosylsphingosine (GS) is highly accumulated and specifically evoking itch-scratch responses in the skins of atopic dermatitis (AD) patients. However, it was unclear how GS can trigger itch-scratch responses, since there were no known molecular singling pathways revealed yet. In the present study, it was verified for the first time that GS can activate mouse serotonin receptor 2a (mHtr2a) and 2b (mHtr2b), but not 2c (mHtr2c) that are expressed in HEK293T cells. Specifically, effects of GS on all mouse serotonin receptor 2 subfamily were evaluated by calcium imaging techniques...
February 17, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28190415/a-potential-role-of-the-5-httlpr-polymorphism-in-self-reported-executive-functioning
#9
Margarita V Alfimova, Vera Golimbet, Tatyana Lezheiko, Galina Korovaitseva
Intense effort is directed toward searching for associations between genes and neuropsychological measures of executive functions. In contrast, the impact of genetic polymorphisms on self-rating of everyday executive functioning has not been investigated so far. This study was designed to test associations of self-reported executive functioning, measured with the Behavior Rating Inventory of Executive Function (BRIEF-A), with dopaminergic and serotoninergic genes in non-clinical population and to assess impact of neuropsychological and personality characteristics on these associations...
February 13, 2017: Spanish Journal of Psychology
https://www.readbyqxmd.com/read/28125323/increased-levels-of-5ht2a-receptor-mrna-expression-in-peripheral-blood-mononuclear-cells-of-patients-with-major-depression-correlations-with-severity-and-duration-of-illness
#10
Meysam Amidfar, Yong-Ku Kim, Lejla Colic, Mohammad Arbabi, Gholamhossein Mobaraki, Gholamreza Hassanzadeh, Martin Walter
BACKGROUND: Neuroimaging, immunologic, and pharmacologic studies have emphasized the role of 5-HT2A and 5-HT3A serotonin receptors in the pathophysiology of major depression. AIM: The aim of this study was to measure the relative expression of 5-HT2A and 5-HT3A receptor mRNA in peripheral blood mononuclear cells (PBMCs) of patients with major depressive disorder (MDD). METHOD: 5-HT2A and 5-HT3A receptor mRNA expressions were examined in PBMCs of 25 medication-naïve-patients with MDD, 25 medication-free MDD patients, and 25 healthy controls...
January 26, 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/28103253/polymorphisms-in-htr2a-and-drd4-predispose-to-smoking-and-smoking-quantity
#11
Gloria Pérez-Rubio, Alejandra Ramírez-Venegas, Valeri Noé Díaz, Leonor García Gómez, Karina Elvira Fabián, Salvador García Carmona, Luis A López-Flores, Enrique Ambrocio-Ortiz, Rocío Contreras Romero, Noé Alcantar-Ayala, Raúl H Sansores, Ramcés Falfán-Valencia
BACKGROUND: Genes encoding the receptors involved in the dopaminergic and serotonergic pathways are potential candidates in the mechanisms of nicotine addiction. AIMS: To identify genetic variants in the promoter regions and exons of the DRD4 and HTR2A genes associated with tobacco smoking and the degree of nicotine addiction in Mexican mestizos. METHODS: The study included 438 non-smokers (NS) and 1,157 current smokers, ranked based on their consumption of cigarettes per day (cpd): 574 heavy smokers (HS, >20 cpd) and 583 light smokers (LS, 1-10 cpd)...
2017: PloS One
https://www.readbyqxmd.com/read/28097908/common-and-specific-genes-and-peripheral-biomarkers-in-children-and-adults-with-attention-deficit-hyperactivity-disorder
#12
Cristian Bonvicini, Stephen V Faraone, Catia Scassellati
OBJECTIVES: Elucidating the biological mechanisms involved in Attention-deficit/hyperactivity disorder (ADHD) has been challenging. Relatively unexplored is the fact that these mechanisms can differ with age. METHODS: We present an overview on the major differences between children and adults with ADHD, describing several studies from genomics to metabolomics performed in ADHD children and in adults. A systematic search (up until February, 2016) was conducted. RESULTS: From a PRISMA flow-chart, a total of eligibility 350 studies from genomics and metabolomics were found for cADHD and 91 for aADHD...
January 18, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28068779/norepinephrine-transporter-gene-variants-and-remission-from-depression-with-venlafaxine-treatment-in-older-adults
#13
Victoria S Marshe, Malgorzata Maciukiewicz, Soham Rej, Arun K Tiwari, Etienne Sibille, Daniel M Blumberger, Jordan F Karp, Eric J Lenze, Charles F Reynolds, James L Kennedy, Benoit H Mulsant, Daniel J Müller
OBJECTIVE: The primary objective of this study was to investigate five putatively functional variants of the norepinephrine transporter (SLC6A2, NET) and serotonin transporter (SLC6A4, SERT) genes and remission in depressed older adults treated with venlafaxine. A secondary objective was to analyze 17 other variants in serotonergic system genes (HTR1A, HTR2A, HTR1B, HTR2C, TPH1, TPH2) potentially involved in the mechanism of action of venlafaxine. METHOD: The sample included 350 adults age 60 or older with DSM-IV-defined major depressive disorder and a score of at least 15 on the Montgomery-Åsberg Depression Rating Scale (MADRS)...
May 1, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28058793/effects-of-selection-for-ethanol-preference-on-gene-expression-in-the-nucleus-accumbens-of-hs-cc-mice
#14
A M Colville, O D Iancu, D L Oberbeck, P Darakjian, C L Zheng, N A R Walter, C A Harrington, R P Searles, S McWeeney, R J Hitzemann
Previous studies on changes in murine brain gene expression associated with the selection for ethanol preference have used F2 intercross or heterogeneous stock (HS) founders, derived from standard laboratory strains. However, these populations represent only a small proportion of the genetic variance available in Mus musculus. To investigate a wider range of genetic diversity, we selected mice for ethanol preference using an HS derived from the eight strains of the collaborative cross. These HS mice were selectively bred (four generations) for high and low ethanol preference...
April 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/28054990/mrna-expression-and-dna-methylation-analysis-of-serotonin-receptor-2a-htr2a-in-the-human-schizophrenic-brain
#15
Sern-Yih Cheah, Bruce R Lawford, Ross McD Young, Charles P Morris, Joanne Voisey
Serotonin receptor 2A (HTR2A) is an important signalling factor implicated in cognitive functions and known to be associated with schizophrenia. The biological significance of HTR2A in schizophrenia remains unclear as molecular analyses including genetic association, mRNA expression and methylation studies have reported inconsistent results. In this study, we examine HTR2A expression and methylation and the interaction with HTR2A polymorphisms to identify their biological significance in schizophrenia. Subjects included 25 schizophrenia and 25 control post-mortem brain samples...
January 4, 2017: Genes
https://www.readbyqxmd.com/read/27999378/effect-of-5-ht2a-receptor-polymorphisms-work-stressors-and-social-support-on-job-strain-among-petroleum-workers-in-xinjiang-china
#16
Yu Jiang, Jinhua Tang, Rong Li, Junling Zhao, Zhixin Song, Hua Ge, Yulong Lian, Jiwen Liu
Previous studies have shown that work stressors and social support influence job strain. However, few studies have examined the impact of individual differences on job strain. In Xinjiang, there are a large number of petroleum workers in arid deserts. The present study investigated the effects of work stressors, social support, and 5-hydroxytryptamine receptor (5-HTR2A) genotype on the etiology of job strain among petroleum workers in Xinjiang. A cross-sectional study was carried out between January and August 2013...
December 19, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27987181/association-of-snps-in-dopamine-and-serotonin-pathway-genes-and-their-interacting-genes-with-temperament-traits-in-charolais-cows
#17
E Garza-Brenner, A M Sifuentes-Rincón, R D Randel, F A Paredes-Sánchez, G M Parra-Bracamonte, W Arellano Vera, F A Rodríguez Almeida, A Segura Cabrera
Cattle temperament is a complex trait, and molecular studies aimed at defining this trait are scarce. We used an interaction networks approach to identify new genes (interacting genes) and to estimate their effects and those of 19 dopamine- and serotonin-related genes on the temperament traits of Charolais cattle. The genes proopiomelanocortin (POMC), neuropeptide Y (NPY), solute carrier family 18, member 2 (SLC18A2) and FBJ murine osteosarcoma viral oncogene homologue (FOSFBJ) were identified as new candidates...
December 16, 2016: Journal of Applied Genetics
https://www.readbyqxmd.com/read/27977334/pharmacogenetics-of-ustekinumab-in-patients-with-moderate-to-severe-plaque-psoriasis
#18
Rocío Prieto-Pérez, Mar Llamas-Velasco, Teresa Cabaleiro, Guillermo Solano-López, Beatriz Márquez, Manuel Román, Dolores Ochoa, María Talegón, Esteban Daudén, Francisco Abad-Santos
Aim/Materials & methods: Few studies have evaluated the influence of pharmacogenetics in psoriatic patients treated with ustekinumab. We evaluated 121 polymorphisms to study a possible association between these SNPs and the response to ustekinumab (PASI75 at 4 months; n = 69). RESULTS/CONCLUSION: The adjusted results (false discovery rate) showed an association between five SNPs in TNFRSF1A, HTR2A, NFKBIA, ADAM33 and IL13 genes, and poor response to ustekinumab. Furthermore, six SNPs in CHUK, C17orf51, ZNF816A, STAT4, SLC22A4 and Corf72 genes were associated with better response to ustekinumab...
January 2017: Pharmacogenomics
https://www.readbyqxmd.com/read/27959337/peripheral-blood-gene-expression-profiles-linked-to-monoamine-metabolite-levels-in-cerebrospinal-fluid
#19
J J Luykx, L M Olde Loohuis, M Neeleman, E Strengman, S C Bakker, E Lentjes, P Borgdorff, E P A van Dongen, P Bruins, R S Kahn, S Horvath, S de Jong, R A Ophoff
The blood-brain barrier separates circulating blood from the central nervous system (CNS). The scope of this barrier is not fully understood which limits our ability to relate biological measurements from peripheral to central phenotypes. For example, it is unknown to what extent gene expression levels in peripheral blood are reflective of CNS metabolism. In this study, we examine links between central monoamine metabolite levels and whole-blood gene expression to better understand the connection between peripheral systems and the CNS...
December 13, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27955831/sedative-effect-of-clozapine-is-a-function-of-5-ht2a-and-environmental-novelty
#20
Radhika S Joshi, Rolen Quadros, Michael Drumm, Rupasri Ain, Mitradas M Panicker
Antipsychotic drugs are the mainstay in the treatment of schizophrenia and bipolar disorder. However, antipsychotics often exhibit sedation or activity suppression among many other side effects, and the factors that influence them remain poorly understood. We now show, using a 5-HT2A knockout (Htr2a(-/-)) mouse, that environmental circumstances can affect suppression of activity induced by the atypical antipsychotic- Clozapine. We observed that Htr2a(-/-) mice were more resistant to Clozapine-induced suppression of activity (CISA) and this behaviour was dependent on the environment being 'novel'...
December 7, 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
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