نتایج جستجو برای: comt gene

تعداد نتایج: 1142436  

2015
Yvette N. Lamb Christopher S. Thompson Nicole S. McKay Karen E. Waldie Ian J. Kirk

Single nucleotide polymorphisms in the brain-derived neurotrophic factor (BDNF) gene and the catechol-O-methyltransferase (COMT) gene influence brain structure and function, as well as cognitive abilities. They are most influential in the hippocampus and prefrontal cortex (PFC), respectively. Recall and recognition are forms of memory proposed to have different neural substrates, with recall ha...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2011
Gianluca Ursini Valentina Bollati Leonardo Fazio Annamaria Porcelli Luisa Iacovelli Assia Catalani Lorenzo Sinibaldi Barbara Gelao Raffaella Romano Antonio Rampino Paolo Taurisano Marina Mancini Annabella Di Giorgio Teresa Popolizio Andrea Baccarelli Antonio De Blasi Giuseppe Blasi Alessandro Bertolino

DNA methylation at CpG dinucleotides is associated with gene silencing, stress, and memory. The catechol-O-methyltransferase (COMT) Val(158) allele in rs4680 is associated with differential enzyme activity, stress responsivity, and prefrontal activity during working memory (WM), and it creates a CpG dinucleotide. We report that methylation of the Val(158) allele measured from peripheral blood m...

Journal: :Revista brasileira de reumatologia 2010
Josie Budag Matsuda Flávia Regina Barbosa Lucas Junqueira Fernandes Morel Suzelei de Castro França Sonia Marli Zingaretti Lucienir Maria da Silva Ana Maria Soares Pereira Mozart Marins Ana Lúcia Fachin

INTRODUCTION Fibromyalgia is a rheumatic syndrome characterized by diffuse and chronic pain associated with fatigue, sleep disorders, anxiety, depression, memory loss, and dizziness. Although the physiological mechanisms that control fibromyalgia have not been precisely established, neuroendocrine, genetic or molecular factors may be involved in fibromyalgia. OBJECTIVE The aim of the present ...

2017
Walter J. Lukiw Evgeny I. Rogaev

Alzheimer's disease (AD) is a terminal, age-related neurological syndrome exhibiting progressive cognitive and memory decline, however AD patients in addition exhibit ancillary neuropsychiatric symptoms (NPSs) and these include aggression. In this communication we provide recent evidence for the mis-regulation of a small family of genes expressed in the human hippocampus that appear to be signi...

Journal: : 2023

<p style="text-align: justify;">A comparison was made between each other at the level of subscales Boyko empathy questionnaire and EmIn questionnaire. Additionally, questionnaires were compared with results genetic analysis COMT, DRD4, 5HTR2A. It is shown that are mutually complementary. The revealed relationships gene polymorphism a number both as whole do not contradict existing data on...

2015
Yuan Li Guibo Liu Jun Li Yongliang You Haiming Zhao Huan Liang Peisheng Mao

Understanding the relationship between acid detergent lignin (ADL) and lodging resistance index (LRI) is essential for breeding new varieties of brown midrib (bmr) sudangrass (Sorghum sudanense (Piper) Stapf.). In this study, bmr-12 near isogenic lines and their wild-types obtained by back cross breeding were used to compare relevant forage yield and quality traits, and to analyze expression of...

2016
Onder Ozturk Huseyin Alacam Burge Kabukcu Basay Omer Basay Ahmet Buber Ozlem Izci Ay Kadir Agladıoglu Mehmet Emin Erdal Hasan Herken

OBJECTIVE Attention deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental disorder. Thus, the present study aimed to determine the effects of a single dose of methylphenidate (Mph) on neurometabolite levels according to polymorphisms of the catechol-O-methyltransferase (COMT) gene. METHODS This study evaluated the neurometabolite levels including N-acetylaspartate (NAA), creati...

Journal: :Pain 2015
Carolina B Meloto Samantha K Segall Shad Smith Marc Parisien Svetlana A Shabalina Célia M Rizzatti-Barbosa Josée Gauthier Douglas Tsao Marino Convertino Marjo H Piltonen Gary Dmitri Slade Roger B Fillingim Joel D Greenspan Richard Ohrbach Charles Knott William Maixner Dmitri Zaykin Nikolay V Dokholyan Ilkka Reenilä Pekka T Männistö Luda Diatchenko

Catechol-O-methyltransferase (COMT) metabolizes catecholaminergic neurotransmitters. Numerous studies have linked COMT to pivotal brain functions such as mood, cognition, response to stress, and pain. Both nociception and risk of clinical pain have been associated with COMT genetic variants, and this association was shown to be mediated through adrenergic pathways. Here, we show that associatio...

Journal: :Learning & memory 2014
Eleanor H Simpson Julia Morud Vanessa Winiger Dominik Biezonski Judy P Zhu Mary Elizabeth Bach Gael Malleret H Jonathan Polan Scott Ng-Evans Paul E M Phillips Christoph Kellendonk Eric R Kandel

A common genetic polymorphism that results in increased activity of the dopamine regulating enzyme COMT (the COMT Val(158) allele) has been found to associate with poorer cognitive performance and increased susceptibility to develop psychiatric disorders. It is generally assumed that this increase in COMT activity influences cognitive function and psychiatric disease risk by increasing dopamine...

2012
Kelsey L Yee Miguel Rodriguez Jr Timothy J Tschaplinski Nancy L Engle Madhavi Z Martin Chunxiang Fu Zeng-Yu Wang Scott D Hamilton-Brehm Jonathan R Mielenz

UNLABELLED BACKGROUND The inherent recalcitrance of lignocellulosic biomass is one of the major economic hurdles for the production of fuels and chemicals from biomass. Additionally, lignin is recognized as having a negative impact on enzymatic hydrolysis of biomass, and as a result much interest has been placed on modifying the lignin pathway to improve bioconversion of lignocellulosic feed...

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