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SLC6A4

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https://www.readbyqxmd.com/read/29651330/analysis-of-neuroanatomical-differences-in-mice-with-genetically-modified-serotonin-transporters-assessed-by-structural-magnetic-resonance-imaging
#1
Jacob Ellegood, Yohan Yee, Travis M Kerr, Christopher L Muller, Randy D Blakely, R Mark Henkelman, Jeremy Veenstra-VanderWeele, Jason P Lerch
Background: The serotonin (5-HT) system has long been implicated in autism spectrum disorder (ASD) as indicated by elevated whole blood and platelet 5-HT, altered platelet and brain receptor and transporter binding, and genetic linkage and association findings. Based upon work in genetically modified mice, 5-HT is known to influence several aspects of brain development, but systematic neuroimaging studies have not previously been reported. In particular, the 5-HT transporter (serotonin transporter, SERT; 5-HTT) gene, Slc6a4 , has been extensively studied...
2018: Molecular Autism
https://www.readbyqxmd.com/read/29606180/associations-of-prenatal-depressive-symptoms-with-dna-methylation-of-hpa-axis-related-genes-and-diurnal-cortisol-profiles-in-primary-school-aged-children
#2
Valeska Stonawski, Stefan Frey, Yulia Golub, Nicolas Rohleder, Jennifer Kriebel, Tamme W Goecke, Peter A Fasching, Matthias W Beckmann, Johannes Kornhuber, Oliver Kratz, Gunther H Moll, Hartmut Heinrich, Anna Eichler
Epigenetic DNA modifications in genes related to the hypothalamic-pituitary-adrenal (HPA) axis are discussed as a mechanism underlying the association between prenatal depression and altered child HPA activity. In a longitudinal study, DNA methylation changes related to prenatal depressive symptoms were investigated in 167 children aged 6 to 9 years. At six candidate genes, 126 cytosine-guanine dinucleotides were considered without correcting for multiple testing due to the exploratory nature of the study. Further associations with the basal child HPA activity were examined...
April 2, 2018: Development and Psychopathology
https://www.readbyqxmd.com/read/29568676/maternal-separation-affects-expression-of-stress-response-genes-and-increases-vulnerability-to-ethanol-consumption
#3
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/29551185/susceptibility-and-severity-of-cancer-related-fatigue-in-colorectal-cancer-patients-is-associated-with-slc6a4-gene-single-nucleotide-polymorphism-rs25531-a-g-genotype
#4
Xi Ouyang, Guanping Zhang, Hua Pan, Jun Huang
PURPOSE: To explore the correlation between the SERT gene promoter single nucleotide polymorphisms (SNPs) rs25531 and rs956304 and the cancer-related fatigue (CRF) of colon and rectal cancer, and also to analyze the correlation of the interaction of genetic and non-genetic factors. METHOD: A sample of 568 colon and rectal cancer patients were recruited from the Second Affiliated Hospital of Nanchang University from October 2013 to December 2015. The Chinese version of the Brief Fatigue Inventory (BFI-C) was used to evaluate the CRF...
April 2018: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/29500446/significance-of-risk-polymorphisms-for-depression-depends-on-stress-exposure
#5
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/29487159/molecular-and-functional-characterization-of-the-gulf-toadfish-serotonin-transporter-sert-slc6a4
#6
Molly H B Amador, M Danielle McDonald
The serotonin transporter (SERT) functions in the uptake of the neurotransmitter serotonin (5-HT) from the extracellular milieu and is the molecular target of the selective serotonin reuptake inhibitors (SSRIs), a common group of antidepressants. The current study comprehensively assesses the sequence, tissue distribution, transport kinetics, and physiological function of a teleost SERT. The 2,022-bp toadfish SERT sequence encodes a protein of 673 amino acids, which shows 83% similarity to zebrafish SERT and groups with SERT of other teleosts in phylogenetic analysis...
February 27, 2018: Journal of Experimental Biology
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
#7
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
#8
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
#9
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/29331709/what-do-the-genetic-association-data-say-about-the-high-risk-of-suicide-in-people-with-depression-a-novel-network-based-approach-to-find-common-molecular-basis-for-depression-and-suicidal-behavior-and-related-therapeutic-targets
#10
Ali Bozorgmehr, Fatemeh Alizadeh, Sattar Norouzi Ofogh, Mohammad Reza Abdollahzadeh Hamzekalayi, Sara Herati, Atefeh Moradkhani, Ali Shahbazi, Mohammad Ghadirivasfi
BACKGROUND: Available sources indicate that the risk of suicide in people with major depression is higher than other psychiatric disorders. Although it seems that these two conditions may have a shared cause in some cases, no studies have been conducted to identify a common basis for them. METHODS: In this study, following an extensive review of literature, we found almost all the genes that are involved in major depression and suicidal behavior, and we isolated genes shared between the two conditions...
March 15, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29325450/symptom-science-omics-supports-common-biological-underpinnings-across-symptoms
#11
Maura K McCall, Ansley Grimes Stanfill, Elizabeth Skrovanek, Jessica Renee Pforr, Susan W Wesmiller, Yvette P Conley
For precision health care to be successful, an in-depth understanding of the biological mechanisms for symptom development and severity is essential. Omics-based research approaches facilitate identification of the biological underpinnings of symptoms. We reviewed literature for omics-based approaches and exemplar symptoms (sleep disruption, cognitive impairment, fatigue, gastrointestinal [GI] distress, and pain) to identify genes associated with the symptom or symptoms across disease processes. The review yielded 27 genes associated with more than one symptom...
March 2018: Biological Research for Nursing
https://www.readbyqxmd.com/read/29325449/analysis-of-dna-methylation-in-young-people-limited-evidence-for-an-association-between-victimization-stress-and-epigenetic-variation-in-blood
#12
Sarah J Marzi, Karen Sugden, Louise Arseneault, Daniel W Belsky, Joe Burrage, David L Corcoran, Andrea Danese, Helen L Fisher, Eilis Hannon, Terrie E Moffitt, Candice L Odgers, Carmine Pariante, Richie Poulton, Benjamin S Williams, Chloe C Y Wong, Jonathan Mill, Avshalom Caspi
OBJECTIVE: DNA methylation has been proposed as an epigenetic mechanism by which early-life experiences become "embedded" in the genome and alter transcriptional processes to compromise health. The authors sought to investigate whether early-life victimization stress is associated with genome-wide DNA methylation. METHOD: The authors tested the hypothesis that victimization is associated with DNA methylation in the Environmental Risk (E-Risk) Longitudinal Study, a nationally representative 1994-1995 birth cohort of 2,232 twins born in England and Wales and assessed at ages 5, 7, 10, 12, and 18 years...
January 12, 2018: American Journal of Psychiatry
https://www.readbyqxmd.com/read/29313869/negative-social-acts-and-pain-evidence-of-a-workplace-bullying-and-5-htt-genotype-interaction
#13
Daniel Pitz Jacobsen, Morten Birkeland Nielsen, Ståle Einarsen, Johannes Gjerstad
Objectives Long-term exposure to systematic negative acts at work, usually labeled workplace bullying, is a prevalent problem at many workplaces. The adverse effects of such exposure may range from psychological symptoms, such as depression and anxiety to somatic ailments like cardiovascular disease and musculoskeletal complaints. In this study, we examined the relationships among exposure to negative acts, genetic variability in the 5-HTT gene SLC6A4 and pain. Methods The study was based on a nationally representative survey of 987 Norwegian employees drawn from the Norwegian Central Employee Register by Statistics Norway...
January 9, 2018: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/29304146/from-early-stress-to-12-month-development-in-very-preterm-infants-preliminary-findings-on-epigenetic-mechanisms-and-brain-growth
#14
Monica Fumagalli, Livio Provenzi, Pietro De Carli, Francesca Dessimone, Ida Sirgiovanni, Roberto Giorda, Claudia Cinnante, Letizia Squarcina, Uberto Pozzoli, Fabio Triulzi, Paolo Brambilla, Renato Borgatti, Fabio Mosca, Rosario Montirosso
Very preterm (VPT) infants admitted to Neonatal Intensive Care Unit (NICU) are at risk for altered brain growth and less-than-optimal socio-emotional development. Recent research suggests that early NICU-related stress contributes to socio-emotional impairments in VPT infants at 3 months through epigenetic regulation (i.e., DNA methylation) of the serotonin transporter gene (SLC6A4). In the present longitudinal study we assessed: (a) the effects of NICU-related stress and SLC6A4 methylation variations from birth to discharge on brain development at term equivalent age (TEA); (b) the association between brain volume at TEA and socio-emotional development (i...
2018: PloS One
https://www.readbyqxmd.com/read/29287766/serotonin-transporter-gene-expression-predicts-the-worsening-of-suicidal-ideation-and-suicide-attempts-along-a-long-term-follow-up-of-a-major-depressive-episode
#15
Julia-Lou Consoloni, El Chérif Ibrahim, Marie-Noëlle Lefebvre, Xavier Zendjidjian, Emilie Olié, Pascale Mazzola-Pomietto, Thomas Desmidt, Ludovic Samalin, Pierre-Michel Llorca, Mocrane Abbar, Jorge Lopez-Castroman, Emmanuel Haffen, Karine Baumstarck, Jean Naudin, Jean-Michel Azorin, Wissam El-Hage, Philippe Courtet, Raoul Belzeaux
The quest for biomarkers in suicidal behaviors has been elusive so far, despite their potential utility in clinical practice. One of the most robust biological findings in suicidal behaviors is the alteration of the serotonin transporter function in suicidal individuals. Our main objective was to investigate the predictive value of the serotonin transporter gene expression (SLC6A4) for suicidal ideation and as secondary, for suicide attempts in individuals with a major depressive episode (MDE). A 30-week prospective study was conducted on 148 patients with a MDE and 100 healthy controls including 4 evaluation times (0, 2, 8 and 30 weeks)...
March 2018: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29286513/influence-of-polymorphic-variants-of-the-slc6a4-gene-on-the-frequency-of-detection-of-depressive-states-in-the-group-of-the-clean-up-workers-of-consequences-of-chornobyl-accident-in-the-remote-period-after-the-chornobyl-catastrophe
#16
I V Abramenko, N I Bilous, S A Chumak, K M Loganovsky
Mental disorders of the victims are one of the important medical consequences of the Chornobyl accident. It is also known that in the implementation of the pathogenesis of depressive states a significant role belongs to the sero tonin transporter gene (SLC6A4). OBJECTIVE: To determine the effect of polymorphic variants of the SLC6A4 gene on the frequency of detection of depression in a group of clean up workers in the remote period after the Chornobyl catastrophe. METHODS: The study was conducted in a group of 59 victims of the Chornobyl NPP accident, divided into two groups (without depression and with depressive symptoms)...
December 2017: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/29237550/the-effects-of-dna-methylation-on-human-psychology
#17
REVIEW
Farzeen Kader, Meenu Ghai, Leah Maharaj
DNA methylation is a fundamental epigenetic modification in the human genome; pivotal in development, genomic imprinting, X inactivation, chromosome stability, gene expression and methylation aberrations are involved in an array of human diseases. Methylation at promoters is associated with transcriptional repression, whereas gene body methylation is generally associated with gene expression. Extrinsic factors such as age, diets and lifestyle affect DNA methylation which consequently alters gene expression...
July 2, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29220746/testing-bidirectional-relationships-between-alcohol-use-and-depressive-symptoms-what-is-the-role-of-the-serotonin-transporter-gene
#18
Roy Otten, Carmen S van der Zwaluw, Rutger C Engels
Alcohol abuse often co-exists with a major depressive disorder. In order to understand the development of this comorbidity, it is important to concentrate on the preceding process. It has been suggested that the link between alcohol use and depressive symptoms is a result of an interaction with genetic factors. The aim of this study was to longitudinally examine the effect of the 5-HTTLPR genotype on the association between depressive symptoms and alcohol use in a Dutch community sample. Following a stepwise approach, bivariate correlations, longitudinal regression analyses, and latent growth curve analyses were separately conducted for 316 males and 321 females...
February 2018: Alcohol
https://www.readbyqxmd.com/read/29196338/proteomics-and-metabolomics-identify-molecular-mechanisms-of-aging-potentially-predisposing-for-chronic-lymphocytic-leukemia
#19
Rupert L Mayer, Josef D Schwarzmeier, Marlene C Gerner, Andrea Bileck, Johanna C Mader, Samuel M Meier-Menches, Samuel M Gerner, Klaus G Schmetterer, Tobias Pukrop, Albrecht Reichle, Astrid Slany, Christopher Gerner
B cell chronic lymphocytic leukemia (B-CLL), the most common type of leukemia in adults, is still essentially incurable despite the development of novel therapeutic strategies. This reflects the incomplete understanding of the pathophysiology of this disease. A comprehensive proteome analysis of primary human B-CLL cells and B cells from younger as well as elderly healthy donors was performed. For comparison, the chronic B cell leukemia cell line JVM-13 was also included. A principal component analysis comprising 6,945 proteins separated these four groups, placing B cells of aged-matched controls between those of young donors and B-CLL patients, while identifying JVM-13 as poorly related cells...
February 2018: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29191570/the-effect-of-interactions-between-genetics-and-cannabis-use-on-neurocognition-a-review
#20
REVIEW
E Cosker, T Schwitzer, N Ramoz, F Ligier, L Lalanne, P Gorwood, R Schwan, V Laprévote
BACKGROUND: Cannabis is one of the most widely-used drugs in industrialized countries. It is now well established that cannabis use impacts neurocognition. In the intoxication period time episodic memory, working memory and attention are impacted and impulsivity is increased. The long-term effects of cannabis use tend to be similar. Various internal factors, such as sex differences, modulate this impact. It is unclear whether genetic variations can also influence the impact of cannabis on neurocognition...
March 2, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
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