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https://www.readbyqxmd.com/read/28096880/genetic-polymorphism-of-1019c-g-rs6295-promoter-of-serotonin-1a-receptor-and-catechol-o-methyltransferase-in-panic-disorder
#1
Takashi Watanabe, Shin Ishiguro, Akiko Aoki, Mikito Ueda, Yuki Hayashi, Kazufumi Akiyama, Kazuko Kato, Kazutaka Shimoda
OBJECTIVE: Family and twin studies have suggested genetic liability for panic disorder (PD) and therefore we sought to determine the role of noradrenergic and serotonergic candidate genes for susceptibility for PD in a Japanese population. METHODS: In this age- and gender-matched case-control study involving 119 PD patients and 119 healthy controls, we examined the genotype distributions and allele frequencies of the serotonin transporter gene linked polymorphic region (5-HTTLPR), -1019C/G (rs6295) promoter polymorphism of the serotonin receptor 1A (5-HT1A), and catechol-O-methyltransferase (COMT) gene polymorphism (rs4680) and their association with PD...
January 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28088648/the-influence-of-5-httlpr-transporter-genotype-on-amygdala-subgenual-anterior-cingulate-cortex-connectivity-in-autism-spectrum-disorder
#2
Francisco Velasquez, Jillian Lee Wiggins, Whitney I Mattson, Donna M Martin, Catherine Lord, Christopher S Monk
Social deficits in autism spectrum disorder (ASD) are linked to amygdala functioning and functional connection between the amygdala and subgenual anterior cingulate cortex (sACC) is involved in the modulation of amygdala activity. Impairments in behavioral symptoms and amygdala activation and connectivity with the sACC seem to vary by serotonin transporter-linked polymorphic region (5-HTTLPR) variant genotype in diverse populations. The current preliminary investigation examines whether amygdala-sACC connectivity differs by 5-HTTLPR genotype and relates to social functioning in ASD...
December 23, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28054193/personality-as-an-intermediate-phenotype-for-genetic-dissection-of-alcohol-use-disorder
#3
REVIEW
Lars Oreland, Gianvito Lagravinese, Simone Toffoletto, Kent W Nilsson, Jaanus Harro, C Robert Cloninger, Erika Comasco
Genetic and environmental interactive influences on predisposition to develop alcohol use disorder (AUD) account for the high heterogeneity among AUD patients and make research on the risk and resiliency factors complicated. Several attempts have been made to identify the genetic basis of AUD; however, only few genetic polymorphisms have consistently been associated with AUD. Intermediate phenotypes are expected to be in-between proxies of basic neuronal biological processes and nosological symptoms of AUD...
January 4, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28034451/predictors-of-response-to-repetitive-transcranial-magnetic-stimulation-rtms-in-the-treatment-of-major-depressive-disorder
#4
G Beuzon, Q Timour, M Saoud
Repetitive transcranial magnetic stimulation (rTMS), based on the principle of electromagnetic induction, consists of applying series of magnetic impulses to the cerebral cortex so as to modulate neurone activity in a target zone. This technique, still experimental, could prove promising in the field of psychiatry, in particular for the treatment of major depressive disorder. It is important for the clinician to be able to assess the response potential of a given patient to rTMS, and this among other things requires relevant predictive factors to be available...
December 26, 2016: L'Encéphale
https://www.readbyqxmd.com/read/28029428/the-serotonin-transporter-gene-5-httlpr-polymorphism-is-associated-with-affective-psychoses-but-not-with-schizophrenia-a-large-scale-study-in-the-russian-population
#5
Vera Golimbet, Galina Korovaitseva, Tatyana Lezheiko, L I Abramova, V G Kaleda
BACKGROUND: Affective syndrome is thought to be a key feature that differentiates schizophrenia from schizoaffective disorder (SA) and bipolar disorder with psychotic features (BDP). However genetic underpinnings of these differences remain unresolved. OBJECTIVES: We compared clinical variables of affective psychoses (SA, BDP and schizophrenia with affective symptoms (AFF SCZ)) and schizophrenia without affective symptoms (non-AFF SCZ) and searched for a genetic variant that may differentiate affective psychosis from non-AFF SCZ...
October 26, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28024274/heterogeneity-in-hpa-axis-dysregulation-and-serotonergic-vulnerability-to-depression
#6
Marie-Laure Ancelin, Jacqueline Scali, Joanna Norton, Karen Ritchie, Anne-Marie Dupuy, Isabelle Chaudieu, Joanne Ryan
Variability in the serotonin transporter (5-HTTLPR) gene can influence the risk of depression associated with adversity, as well as cortisol stress reactivity, although not consistently. No study has examined the impact of both a stressful environment and corticotropic-axis dysfunction on depression, as a function of 5-HTTLPR. This population-based study included 334 subjects aged 65 and older. Depression was measured at both diagnostic (major depression according to DSM-IV) and symptomatic (subthreshold depression) levels of caseness, in addition to 5-HTTLPR and rs25531 genotyping and diurnal cortisol measures...
December 5, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27956753/the-serotonin-transporter-promoter-variant-stress-and-attentional-biases-in-middle-childhood
#7
Yuliya Kotelnikova, Joelle LeMoult, Sarah V M Mackrell, Haroon I Sheikh, Shiva M Singh, Jutta Joormann, Ian H Gotlib, Elizabeth P Hayden
Although evidence suggests that 5-HTTLPR variants may shape risk for depression, the influence is likely complex, and involves effects on endophenotypes. We examined associations between 5-HTTLPR and biases in attention to affective stimuli in a sample of girls and a sample of both boys and girls. Children with at least one short (S) variant of the 5-HTTLPR polymorphism had lower positive attentional bias scores in both samples. This association was qualified by an interaction with stress in one sample, such that links between the S allele and decreased positive attentional bias was significant only when life stress was elevated...
September 2016: Personality and Individual Differences
https://www.readbyqxmd.com/read/27942217/association-between-serotonin-transporter-gene-polymorphisms-and-heroin-dependence-a-meta-analytic-study
#8
Pao-Yen Lin, Yi-Shan Wu
BACKGROUND: Studies have examined the association between heroin dependence and serotonin transporter gene polymorphisms but yielded inconsistent results. The purpose of current study is to determine the overall effect of these polymorphisms on the risk for heroin dependence through a meta-analytic method. METHODS: A meta-analysis was conducted to examine the association of heroin dependence with two common polymorphisms of serotonin transporter gene, in the promoter (5-hydroxytryptamine transporter-linked promotor region [5-httlpr]) and intron 2 (a various number tandem repeat in serotonin transporter intron 2 [STin2])...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27933583/looking-beyond-the-5-httlpr-polymorphism-genetic-and-epigenetic-layers-of-regulation-affecting-the-serotonin-transporter-gene-expression
#9
REVIEW
Sandra Iurescia, Davide Seripa, Monica Rinaldi
Serotonin (5-HT) is a neurotransmitter that regulates fundamental aspects of brain development, physiology and behaviour. The serotonin transporter (5-HTT) is deputized to the reuptake of 5-HT from the intersynaptic space in the presynaptic neurons. 5-HTT governs duration and magnitude of 5-HT biological actions, acting as a master regulator of the fine-tuning of 5-HT signalling. Genetic variation at SLC6A4 gene locus, encoding 5-HTT, contributes to alteration in 5-HT reuptake. The 5-HTTLPR/rs25531/rs25532 polymorphisms located in the promoter region of SLC6A4 gene have been associated with stress-related psychopathology and functional brain phenotypes...
December 8, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27928199/association-of-anxiety-related-polymorphisms-with-sports-performance-in-chilean-long-distance-triathletes-a-pilot-study
#10
Jorge A Sanhueza, Tomás Zambrano, Carlos Bahamondes-Avila, Luis A Salazar
Different factors affecting athletic performance are well established: intensity and type of training, anthropometric characteristics as well as an important psychological component. However, the contribution of the genetic background has been less investigated. The aim of the present study was to investigate the influence of polymorphisms within genes associated with stress and anxiety (5HTT, CRH2R, ACE, NK1R, 5HT1AR and CRF-BP) on the physical capability and sports performance in triathletes. One hundred and ninety two (192) unrelated Chilean triathletes who participated in the 2014 70...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27888722/a-pilot-study-on-predictors-of-brainstem-raphe-abnormality-in-patients-with-major-depressive-disorder
#11
Milutin Kostić, Ana Munjiza, Danilo Pesic, Amir Peljto, Ivana Novakovic, Valerija Dobricic, Dusica Lecic Tosevski, Milija Mijajlovic
BACKGROUND: Hypo/anechogenicity of the brainstem raphe (BR) structures has been suggested as a possible transcranial parenchymal sonography (TCS) marker associated with depression. AIM: The aim of this study was to analyze possible association of the abnormal BR echogenicity in patients with major depression when compared to healthy controls, and to evaluate its clinical and genetic correlates. METHODS: TCS was performed in 53 patients diagnosed as major depressive disorder (MDD) without psychotic symptoms and in 54 healthy matched controls...
February 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27884002/depression-following-acute-coronary-syndrome-time-specific-interactions-between-stressful-life-events-social-support-deficits-and-5-httlpr
#12
Jae-Min Kim, Robert Stewart, Hee-Ju Kang, Kyung-Yeol Bae, Sung-Wan Kim, Il-Seon Shin, Young Joon Hong, Youngkeun Ahn, Myung Ho Jeong, Hyuno Kang, Jin-Sang Yoon
No abstract text is available yet for this article.
2017: Psychotherapy and Psychosomatics
https://www.readbyqxmd.com/read/27880876/an-integrative-review-of-methylation-at-the-serotonin-transporter-gene-and-its-dialogue-with-environmental-risk-factors-psychopathology-and-5-httlpr
#13
REVIEW
H Palma-Gudiel, L Fañanás
Gene-environment (G×E) interactions have largely been regarded as the root of many complex disorders, including several psychiatric disorders. In this regard, it has been hypothesized that epigenetic mechanisms may be the main mediators of such interactions. Of particular interest is the previously described interaction between psychosocial stress and genetic variability of the serotonin transporter gene (SLC6A4) in its polymorphic region 5-HTTLPR. Here we review the literature concerning SLC6A4 methylation in association with environmental, clinical or genetic variables...
January 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/27861757/extending-previous-cg%C3%A3-i-findings-on-5-httlpr-s-moderation-of-intervention-effects-on-adolescent-substance-misuse-initiation
#14
Gabriel L Schlomer, H Harrington Cleveland, Mark E Feinberg, Pedro S A Wolf, Mark T Greenberg, Richard L Spoth, Cleve Redmond, Eric P Tricou, David J Vandenbergh
This study addresses replication in candidate gene × environment interaction (cG×E) research by investigating if the key findings from Brody, Beach, Philibert, Chen, and Murry (2009) can be detected using data (N = 1,809) from the PROSPER substance use preventive intervention delivery system. Parallel to Brody et al., this study tested the hypotheses that substance misuse initiation would increase faster from age 11 to age 14 and be higher at age 14 among: (a) 5-HTTLPR short carrier adolescents versus long homozygotes, (b) control versus intervention adolescents, and (c) 5-HTTLPR short carriers in the control condition versus all other participants...
November 8, 2016: Child Development
https://www.readbyqxmd.com/read/27826101/serotonin-and-urocortin-1-in-the-dorsal-raphe-and-edinger-westphal-nuclei-after-early-life-stress-in-serotonin-transporter-knockout-rats
#15
Rick H A van der Doelen, Berit Robroch, Ilse A Arnoldussen, Maya Schulpen, Judith R Homberg, Tamás Kozicz
The interaction of early life stress (ELS) and the serotonin transporter (5-HTT) gene-linked polymorphic region (5-HTTLPR) has been associated with increased risk to develop depression in later life. We have used the maternal separation paradigm as a model for ELS exposure in homozygous and heterozygous 5-HTT knockout rats and measured urocortin 1 (Ucn1) mRNA and/or protein levels, Ucn1 DNA methylation, as well as 5-HT innervation in the centrally projecting Edinger-Westphal (EWcp) and dorsal raphe (DR) nuclei, both implicated in the regulation of stress response...
January 6, 2017: Neuroscience
https://www.readbyqxmd.com/read/27819008/link-polymorphism-of-5-htt-promoter-region-is-associated-with-autoantibodies-in-patients-with-systemic-lupus-erythematosus
#16
Shu Li, Shuang Liu, Fan Chen, Yuqi Cheng, Ru Bai, Aiyun Lai, Zhaoping Lu, Jian Xu
Serotonin transporter linked polymorphic region (5-HTTLPR) was reported to associate with depression in systemic lupus erythematosus (SLE) patients by our team. To explore whether 5-HTTLPR plays a role in the pathogenesis of SLE, we tested 138 SLE patients and 138 age and sex matched health controls (HCs) for 5-HTTLPR by polymerase chain reaction (PCR) and agarose gel electrophoresis. Interestingly, the results suggest that the frequencies of SS genotype and S allele in SLE patients with positive anti-Sm antibody and anti-U1RNP antibody were both significantly higher than the other genotypes and alleles...
2016: Journal of Immunology Research
https://www.readbyqxmd.com/read/27816559/interactive-effects-of-5-httlpr-genotype-and-rearing-environment-on-affective-attitude-towards-own-infant-in-japanese-mothers
#17
Erika Sawano, Hirokazu Doi, Tomoko Nagai, Satoko Ikeda, Kauyuki Shinohara
Maternal positive attitude towards one's own infant is the cornerstone of effective parenting. Previous research has revealed an influence of both genetic and environmental factors on maternal parenting behavior, but little is known of the potential gene-environment interaction in shaping a mother's affective attitude. To address this gap, we investigated the effect of a mother's childhood rearing environment and a serotonin transporter gene polymorphism (5-HTTLPR) on affective attitude towards her infant. Our analyses found an interactive effect between rearing environment and 5-HTTLPR genotype on maternal attitude...
November 2, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27798133/involvement-of-the-serotonin-transporter-gene-in-accurate-subcortical-speech-encoding
#18
Lenka Selinger, Katarzyna Zarnowiec, Marc Via, Immaculada C Clemente, Carles Escera
: A flourishing line of evidence has highlighted the encoding of speech sounds in the subcortical auditory system as being shaped by acoustic, linguistic, and musical experience and training. And while the heritability of auditory speech as well as nonspeech processing has been suggested, the genetic determinants of subcortical speech processing have not yet been uncovered. Here, we postulated that the serotonin transporter-linked polymorphic region (5-HTTLPR), a common functional polymorphism located in the promoter region of the serotonin transporter gene (SLC6A4), is implicated in speech encoding in the human subcortical auditory pathway...
October 19, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27788383/gender-specific-association-between-serotonin-transporter-polymorphisms-5-httlpr-and-rs25531-and-neuroticism-anxiety-and-depression-in-well-defined-healthy-han-chinese
#19
Chuan-Chia Chang, Hsin-An Chang, Wen-Hui Fang, Tieh-Ching Chang, San-Yuan Huang
BACKGROUND: A tri-allelic serotonin transporter promoter polymorphism (5-HTTLPR/rs25531) more effectively determines the levels of transcriptional efficacy than that with the bi-allelic 5-HTTLPR polymorphism in vitro. Both are reportedly associated with personality traits of negative emotionality, but with conflicting findings. One explanation for this is that a gender difference may play a role in genetic contribution. Here, we hypothesized that the tri-allelic genotype of the serotonin transporter is more closely linked to neuroticism, an anxiety- and depression-related trait, than the bi-allelic variation, particularly in a gender-dependent way...
October 12, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27743374/associations-between-genetic-risk-functional-brain-network-organization-and-neuroticism
#20
Michelle N Servaas, Linda Geerligs, Jojanneke A Bastiaansen, Remco J Renken, Jan-Bernard C Marsman, Ilja M Nolte, Johan Ormel, André Aleman, Harriëtte Riese
Neuroticism and genetic variation in the serotonin-transporter (SLC6A4) and catechol-O-methyltransferase (COMT) gene are risk factors for psychopathology. Alterations in the functional integration and segregation of neural circuits have recently been found in individuals scoring higher on neuroticism. The aim of the current study was to investigate how genetic risk factors impact functional network organization and whether genetic risk factors moderate the association between neuroticism and functional network organization...
October 14, 2016: Brain Imaging and Behavior
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