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https://www.readbyqxmd.com/read/29723560/associations-between-catecholaminergic-and-serotonergic-genes-and-persistent-breast-pain-phenotypes-following-breast-cancer-surgery
#1
Mitchell R Knisely, Yvette P Conley, Kord M Kober, Betty Smoot, Steven M Paul, Jon D Levine, Christine Miaskowski
Genetic variations in the catecholaminergic and serotonergic pathways may contribute to the development and severity of persistent breast pain. However, investigations of these associations are limited. The purpose of this study was to evaluate for associations between breast pain phenotypes and single nucleotide polymorphisms (SNPs) among 15 genes involved in catecholaminergic and serotonergic neurotransmission. Women rated the presence and intensity of breast pain monthly for six months following breast cancer surgery...
April 30, 2018: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/29703883/interactions-among-polymorphisms-of-susceptibility-loci-for-alzheimer-s-disease-or-depressive-disorder
#2
Eva Kitzlerová, Zdeněk Fišar, Petra Lelková, Roman Jirák, Martina Zvěřová, Jana Hroudová, Ada Manukyan, Pavel Martásek, Jiří Raboch
BACKGROUND Several genetic susceptibility loci for major depressive disorder (MDD) or Alzheimer's disease (AD) have been described. Interactions among polymorphisms are thought to explain the differences between low- and high-risk groups. We tested for the contribution of interactions between multiple functional polymorphisms in the risk of MDD or AD. MATERIAL AND METHODS A genetic association case-control study was performed in 68 MDD cases, 84 AD cases (35 of them with comorbid depression), and 90 controls...
April 28, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29689343/leveraging-genetics-to-enhance-the-efficacy-of-ptsd-pharmacotherapies
#3
REVIEW
Mark W Miller
Progress in PTSD pharmacotherapy has lagged far behind that of other major mental illnesses. Unfortunately, due to the enormous costs and lengthy process involved in bringing drugs to market, delivering new treatments to patients with PTSD in the near future will remain a challenge. However, by capitalizing on recent advances in the pharmacogenetics of antidepressants, precision psychiatry approaches can be leveraged to optimize the delivery of currently-available medications in a fraction of the time and cost required to develop novel therapeutics...
April 21, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29680514/brain-blood-cerebrospinal-fluid-and-serum-biomarkers-in-schizophrenia
#4
REVIEW
Alireza Mohammadi, Ehsan Rashidi, Vahid Ghasem Amooeian
Over the last decade, finding a reliable biomarker for the early detection of schizophrenia (Scz) has been a topic of interest. The main goal of the current review is to provide a comprehensive view of the brain, blood, cerebrospinal fluid (CSF), and serum biomarkers of Scz disease. Imaging studies have demonstrated that the volumes of the corpus callosum, thalamus, hippocampal formation, subiculum, parahippocampal gyrus, superior temporal gyrus, prefrontal and orbitofrontal cortices, and amygdala-hippocampal complex were reduced in patients diagnosed with Scz...
April 13, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29602729/sperm-count-and-motility-are-quantitatively-affected-by-functional-polymorphisms-of-htr2a-maoa-and-slc18a
#5
Miriam Cortés-Rodriguez, Jose-Luis Royo, Arturo Reyes-Palomares, Ana M Lendínez, Maximiliano Ruiz-Galdón, Armando Reyes-Engel
Spermatozoa and neurones share similar membrane characteristics and features. Associations of multiple polymorphisms traditionally related to neurotransmission were investigated. Infertile men were grouped into controls with normospermia (n = 182) and idiopathic infertile men with asthenozoospermia (n = 103), and analysed as a case-control study and as a quantitative association of each genotype. Ten neurotransmission-associated genetic variants were mapped by SNP analysis using quantitative polymerase chain reaction with TaqMan probes...
February 2, 2018: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/29599979/the-phenotype-psychotype-and-genotype-of-bruxism
#6
Norma Cruz-Fierro, Margarita Martínez-Fierro, Ricardo M Cerda-Flores, Mayra A Gómez-Govea, Iván Delgado-Enciso, Laura E Martínez-De-Villarreal, Mónica T González-Ramírez, Irám Pablo Rodríguez-Sánchez
Bruxism is a jaw muscle activity that involves physio-pathological, psycho-social, hereditary and genetic factors. The purpose of this study was to determine the associations between self-reported bruxism, anxiety, and neuroticism personality trait with the rs6313 polymorphism in the gene HTR2A . A sample of 171 subjects of both sexes (14-53 years of age) was included. The control group (group 1, n=60) exhibited no signs or symptoms of bruxism. The case group had signs and symptoms of bruxism (n=112) and was subdivided into group 2, bruxism during sleep (n=22); group 3, awake bruxism (n=44); and group 4 combined bruxism (n=46)...
March 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29568676/maternal-separation-affects-expression-of-stress-response-genes-and-increases-vulnerability-to-ethanol-consumption
#7
Taciani de Almeida Magalhães, Diego Correia, Luana Martins de Carvalho, Samara Damasceno, Ana Lúcia Brunialti Godard
Introduction: Maternal separation is an early life stress event associated with behavioral alterations and ethanol consumption. We aimed to expand the current understanding on the molecular mechanisms mediating the impact of postnatal stress on ethanol consumption. Methods: In the first experiment (T1), some of the pups were separated from their mothers for 6 hr daily (Maternal Separation group - MS), whereas the other pups remained in the cage with their respective mothers (Control group - C)...
January 2018: Brain and Behavior
https://www.readbyqxmd.com/read/29526601/association-between-serotonin-2a-receptor-genetic-variations-stressful-life-events-and-suicide
#8
Asghar Ghasemi, Morteza Seifi, Fatemeh Baybordi, Nasim Danaei, Bahram Samadi Rad
AIM: Life events are series of events that disrupt a person's psychological equilibrium and may enhance the development of a disorder such as suicide. Several studies have assessed a relationship between 5-hydroxytryptamine (serotonin) 2A receptor (5-HTR2A) gene polymorphisms with an increased risk of suicide. However, there has been no study about the association between three 5-HTR2A gene polymorphisms, A1438G (rs6311), T102C (rs6313) and C1354T (rs6314), suicide, stressful life, and loss events in a same time...
June 5, 2018: Gene
https://www.readbyqxmd.com/read/29502799/genetics-of-tardive-dyskinesia-promising-leads-and-ways-forward
#9
REVIEW
Clement C Zai, Miriam S Maes, Arun K Tiwari, Gwyneth C Zai, Gary Remington, James L Kennedy
Tardive dyskinesia (TD) is a potentially irreversible and often debilitating movement disorder secondary to chronic use of dopamine receptor blocking medications. Genetic factors have been implicated in the etiology of TD. We therefore have reviewed the most promising genes associated with TD, including DRD2, DRD3, VMAT2, HSPG2, HTR2A, HTR2C, and SOD2. In addition, we present evidence supporting a role for these genes from preclinical models of TD. The current understanding of the etiogenesis of TD is discussed in the light of the recent approvals of valbenazine and deutetrabenazine, VMAT2 inhibitors, for treating TD...
June 15, 2018: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29500446/significance-of-risk-polymorphisms-for-depression-depends-on-stress-exposure
#10
Xenia Gonda, Gabor Hullam, Peter Antal, Nora Eszlari, Peter Petschner, Tomas Gm Hökfelt, Ian Muir Anderson, John Francis William Deakin, Gabriella Juhasz, Gyorgy Bagdy
Depression is a polygenic and multifactorial disorder where environmental effects exert a significant impact, yet most genetic studies do not consider the effect of stressors which may be one reason for the lack of replicable results in candidate gene studies, GWAS and between human studies and animal models. Relevance of functional polymorphisms in seven candidate genes previously implicated in animal and human studies on a depression-related phenotype given various recent stress exposure levels was assessed with Bayesian relevance analysis in 1682 subjects...
March 2, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29358097/the-effect-of-5-httlpr-and-a-serotonergic-multi-marker-score-on-amygdala-prefrontal-and-anterior-cingulate-cortex-reactivity-and-habituation-in-a-large-healthy-fmri-cohort
#11
J H Piel, T A Lett, C Wackerhagen, M M Plichta, S Mohnke, O Grimm, N Romanczuk-Seiferth, F Degenhardt, H Tost, S Witt, M Nöthen, M Rietschel, A Heinz, A Meyer-Lindenberg, H Walter, S Erk
Major depressive disorder (MDD) is characterized by low mood for at least two weeks. Impaired emotion regulation has been suggested to be the consequence of dysfunctional serotonergic regulation of limbic and prefrontal regions, especially the amygdala, the anterior cingulate cortex (ACC) and the prefrontal cortex (PFC). The impact of genetic variation on brain function can be investigated with intermediate phenotypes. A suggested intermediate phenotype of MDD is emotion recognition: The 5-HTTLPR polymorphism of SLC6A4 as well as other serotonergic genes have been associated with amygdala and prefrontal function during emotion recognition...
March 2018: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29333880/pharmacogenetic-analysis-of-opioid-dependence-treatment-dose-and-dropout-rate
#12
Richard C Crist, James Li, Glenn A Doyle, Alex Gilbert, Bryan M Dechairo, Wade H Berrettini
BACKGROUND: Currently, no pharmacogenetic tests for selecting an opioid-dependence pharmacotherapy have been approved by the US Food and Drug Administration. OBJECTIVES: Determine the effects of variants in 11 genes on dropout rate and dose in patients receiving methadone or buprenorphine/naloxone (ClinicalTrials.gov Identifier: NCT00315341). METHODS: Variants in six pharmacokinetic genes (CYP1A2, CYP2B6, CYP2C19, CYP2C9, CYP2D6, CYP3A4) and five pharmacodynamic genes (HTR2A, OPRM1, ADRA2A, COMT, SLC6A4) were genotyped in samples from a 24-week, randomized, open-label trial of methadone and buprenorphine/naloxone for the treatment of opioid dependence (n = 764; 68...
January 15, 2018: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/29331882/association-analysis-of-slc6a4-and-htr2a-genes-with-obsessive-compulsive-disorder-influence-of-the-stin2-polymorphism
#13
Chayenne Karine Ferreira Gomes, Tamiris Vieira-Fonseca, Fernanda Brito Melo-Felippe, Juliana Braga de Salles Andrade, Leonardo F Fontenelle, Fabiana Barzotti Kohlrausch
BACKGROUND: Obsessive-Compulsive Disorder (OCD) is a complex and chronic disorder characterized by recurrent thoughts and/or repetitive behaviors. Given the potent anti-obsessional effects of the so-called serotonin reuptake inhibitors, genes related to serotonergic system may be well implicated in the etiopathogenesis of OCD. The gene encoding the serotonin transporter (SLC6A4), which shows a variable number of tandem repeat (VNTR) polymorphism in intron 2 (STin2), have been previously associated with OCD...
April 2018: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/29325163/trans-ethnic-evaluation-identifies-novel-low-frequency-loci-associated-with-25-hydroxyvitamin-d-concentrations
#14
Jaeyoung Hong, Kathryn E Hatchell, Jonathan P Bradfield, Bjonnes Andrew, Chesi Alessandra, Lai Chao-Qiang, Carl D Langefeld, Lingyi Lu, Yingchang Lu, Pamela L Lutsey, Solomon K Musani, Mike A Nalls, Cassianne Robinson-Cohen, Jeffery D Roizen, Richa Saxena, Katherine L Tucker, Julie T Ziegler, Dan E Arking, Joshua C Bis, Eric Boerwinkle, Erwin P Bottinger, Donald W Bowden, Vincente Gilsanz, Denise K Houston, Heidi J Kalkwarf, Andrea Kelly, Joan M Lappe, Yongmei Liu, Erin D Michos, Sharon E Oberfield, Nicholette D Palmer, Jerome I Rotter, Bishwa Sapkota, John A Shepherd, James G Wilson, Saonli Basu, Ian H de Boer, Jasmin Divers, Barry I Freedman, Struan F A Grant, Hakon Hakanarson, Tamara B Harris, Bryan R Kestenbaum, Stephen B Kritchevsky, Ruth J F Loos, Jill M Norris, Arnita F Norwood, Jose M Ordovas, James S Pankow, Bruce M Psaty, Dharambir K Sanhgera, Lynne E Wagenknecht, Babette S Zemel, James Meigs, Josée Dupuis, Jose C Florez, Thomas Wang, Ching-Ti Liu, Corinne D Engelman, Liana K Billings
Context: Vitamin D inadequacy is common in the adult population of the United States. While the genetic determinants underlying vitamin D inadequacy have been studied in people of European ancestry, less is known in Hispanic or African ancestry populations. Objective: The TRANSCEN-D (TRANS-ethniC Evaluation of vitamiN D GWAS) consortium was assembled to replicate genetic associations with 25-hydroxyvitamin D (25(OH)D) concentrations from the meta-analyses of European ancestry (SUNLIGHT) and to identify novel genetic variants related to vitamin D concentrations in African and Hispanic ancestries...
January 9, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29273787/n-6-methyladenine-is-an-epigenetic-marker-of-mammalian-early-life-stress
#15
Stacey L Kigar, Liza Chang, Candace R Guerrero, Jacqueline R Sehring, Amelia Cuarenta, Laurie L Parker, Vaishali P Bakshi, Anthony P Auger
Recent evidence described 6-methyladenine (6 mA) as a novel epigenetic regulator in a variety of multicellular species, including rodents; however, its capacity to influence gene expression in the mammalian brain remains unknown. We examined if 6 mA is present and regulated by early life stress associated with predator odor exposure (POE) within the developing rat amygdala. Our results provide evidence that 6 mA is present in the mammalian brain, is altered within the Htr2a gene promoter by early life stress and biological sex, and increased 6 mA is associated with gene repression...
December 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29249830/-dna-methylation-signatures-in-panic-disorder
#16
Stella Iurato, Tania Carrillo-Roa, Janine Arloth, Darina Czamara, Laura Diener-Hölzl, Jennifer Lange, Bertram Müller-Myhsok, Elisabeth B Binder, Angelika Erhardt
Panic disorder (PD) affects about four million Europeans, with women affected twice as likely as men, causing substantial suffering and high economic costs. The etiopathogenesis of PD remains largely unknown, but both genetic and environmental factors contribute to risk. An epigenome-wide association study (EWAS) was conducted to compare medication-free PD patients (n = 89) with healthy controls (n = 76) stratified by gender. Replication was sought in an independent sample (131 cases, 169 controls) and functional analyses were conducted in a third sample (N = 71)...
December 18, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/29164477/genetic-variants-within-molecular-targets-of-antipsychotic-treatment-effects-on-treatment-response-schizophrenia-risk-and-psychopathological-features
#17
Marco Calabrò, Stefano Porcelli, Concetta Crisafulli, Sheng-Min Wang, Soo-Jung Lee, Changsu Han, Ashwin A Patkar, Prakash S Masand, Diego Albani, Ilaria Raimondi, Gianluigi Forloni, Sofia Bin, Carlotta Cristalli, Vilma Mantovani, Chi-Un Pae, Alessandro Serretti
Schizophrenia (SCZ) is a common and severe mental disorder. Genetic factors likely play a role in its pathophysiology as well as in treatment response. In the present study, we investigated the effects of several single nucleotide polymorphisms (SNPs) within 9 genes involved with antipsychotic (AP) mechanisms of action. Two independent samples were recruited. The Korean sample included 176 subjects diagnosed with SCZ and 326 healthy controls, while the Italian sample included 83 subjects and 194 controls. AP response as measured by the positive and negative syndrome scale (PANSS) was the primary outcome, while the secondary outcome was the SCZ risk...
January 2018: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/29162169/stress-exposure-and-psychopathology-alter-methylation-of-the-serotonin-receptor-2a-htr2a-gene-in-preschoolers
#18
Stephanie H Parade, Andrew M Novick, Justin Parent, Ronald Seifer, Samantha J Klaver, Carmen J Marsit, Asi Polly Gobin, Bao-Zhu Yang, Audrey R Tyrka
Serotonin signaling pathways play a key role in brain development, stress reactivity, and mental health. Epigenetic alterations in the serotonin system may underlie the effect of early life stress on psychopathology. The current study examined methylation of the serotonin receptor 2A (HTR2A) gene in a sample of 228 children including 119 with child welfare documentation of moderate to severe maltreatment within the last 6 months. Child protection records, semistructured interviews in the home, and parent reports were used to assess child stress exposure, psychiatric symptoms, and behavior...
December 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/29136336/effect-of-polymorphisms-on-the-pharmacokinetics-pharmacodynamics-and-safety-of-sertraline-in-healthy-volunteers
#19
Miriam Saiz-Rodríguez, Carmen Belmonte, Manuel Román, Dolores Ochoa, Dora Koller, María Talegón, María C Ovejero-Benito, Rosario López-Rodríguez, Teresa Cabaleiro, Francisco Abad-Santos
Sertraline is a selective serotonin reuptake inhibitor widely metabolized in the liver by cytochrome P450 (CYP) enzymes. Besides, it is a P-glycoprotein substrate. Moreover, serotonin transporters and serotonin receptors are involved in its efficacy and safety. The aim of this study was to evaluate the role of polymorphisms of metabolizing enzymes, transporters and receptors on the pharmacokinetics, pharmacodynamics and tolerability of sertraline in healthy volunteers. Forty-six healthy volunteers (24 men and 22 women) receiving a 100-mg single oral dose of sertraline were genotyped for 17 genetic variants of CYP enzymes (CYP2B6, CYP2C9, CYP2C19, CYP2D6), ATP-binding cassette subfamily B member 1 (ABCB1), solute carrier family 6 member 4 (SLC6A4), 5-hydroxytryptamine receptor 2A (HTR2A) and 5-hydroxytryptamine receptor 2C (HTR2C) genes...
November 14, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29120849/genetic-analysis-of-impulsive-personality-traits-examination-of-a-priori-candidates-and-genome-wide-variation
#20
Joshua C Gray, James MacKillop, Jessica Weafer, Kyle M Hernandez, Jianjun Gao, Abraham A Palmer, Harriet de Wit
Impulsive personality traits are heritable risk factors and putative endophenotypes for addiction and other psychiatric disorders involving disinhibition. This study examined the genetic basis of impulsive personality traits, defined as scores on the Barratt Impulsiveness Scale (BIS-11) and the UPPS-P Impulsive Behavior Scale (UPPS-P). In 983 healthy young adults of European ancestry, the study examined genetic variation in relation to a combined phenotype of seven subscales based on high phenotypic intercorrelations...
January 2018: Psychiatry Research
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