Expression of Dopamine-Related Genes in Four Human Brain Regions

A better understanding of dopaminergic gene expression will inform future treatment options for many different neurologic and psychiatric conditions. Here, we utilized the National Institutes of Health’s Genotype-Tissue Expression project (GTEx) dataset to investigate genotype by expression associat...

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Main Authors: Ansley Grimes Stanfill, Xueyuan Cao
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/10/8/567
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author Ansley Grimes Stanfill
Xueyuan Cao
author_facet Ansley Grimes Stanfill
Xueyuan Cao
author_sort Ansley Grimes Stanfill
collection DOAJ
description A better understanding of dopaminergic gene expression will inform future treatment options for many different neurologic and psychiatric conditions. Here, we utilized the National Institutes of Health’s Genotype-Tissue Expression project (GTEx) dataset to investigate genotype by expression associations in seven dopamine pathway genes (<i>ANKK1</i>, <i>DBH</i>, <i>DRD1</i>, <i>DRD2</i>, <i>DRD3</i>, <i>DRD5</i>, and <i>SLC6A3</i>) in and across four human brain tissues (prefrontal cortex, nucleus accumbens, substantia nigra, and hippocampus). We found that age alters expression of <i>DRD1</i> in the nucleus accumbens and prefrontal cortex, <i>DRD3</i> in the nucleus accumbens, and <i>DRD5</i> in the hippocampus and prefrontal cortex. Sex was associated with expression of <i>DRD5</i> in substantia nigra and hippocampus, and <i>SLC6A3</i> in substantia nigra. We found that three linkage disequilibrium blocks of SNPs, all located in <i>DRD2</i>, were associated with alterations in expression across all four tissues. These demographic characteristic associations and these variants should be further investigated for use in screening, diagnosis, and future treatment of neurological and psychiatric conditions.
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spelling doaj.art-24924763fce44ad2b93499d4d2c105f62023-11-20T10:33:42ZengMDPI AGBrain Sciences2076-34252020-08-0110856710.3390/brainsci10080567Expression of Dopamine-Related Genes in Four Human Brain RegionsAnsley Grimes Stanfill0Xueyuan Cao1Associate Professor and Associate Dean of Research, College of Nursing, University of Tennessee Health Science Center, Memphis, TN 38163, USAAssistant Professor, College of Nursing, University of Tennessee Health Science Center, Memphis, TN 38163, USAA better understanding of dopaminergic gene expression will inform future treatment options for many different neurologic and psychiatric conditions. Here, we utilized the National Institutes of Health’s Genotype-Tissue Expression project (GTEx) dataset to investigate genotype by expression associations in seven dopamine pathway genes (<i>ANKK1</i>, <i>DBH</i>, <i>DRD1</i>, <i>DRD2</i>, <i>DRD3</i>, <i>DRD5</i>, and <i>SLC6A3</i>) in and across four human brain tissues (prefrontal cortex, nucleus accumbens, substantia nigra, and hippocampus). We found that age alters expression of <i>DRD1</i> in the nucleus accumbens and prefrontal cortex, <i>DRD3</i> in the nucleus accumbens, and <i>DRD5</i> in the hippocampus and prefrontal cortex. Sex was associated with expression of <i>DRD5</i> in substantia nigra and hippocampus, and <i>SLC6A3</i> in substantia nigra. We found that three linkage disequilibrium blocks of SNPs, all located in <i>DRD2</i>, were associated with alterations in expression across all four tissues. These demographic characteristic associations and these variants should be further investigated for use in screening, diagnosis, and future treatment of neurological and psychiatric conditions.https://www.mdpi.com/2076-3425/10/8/567dopaminedopamine receptorsmesocorticalmesolimbicnigrostrialprefrontal cortex
spellingShingle Ansley Grimes Stanfill
Xueyuan Cao
Expression of Dopamine-Related Genes in Four Human Brain Regions
Brain Sciences
dopamine
dopamine receptors
mesocortical
mesolimbic
nigrostrial
prefrontal cortex
title Expression of Dopamine-Related Genes in Four Human Brain Regions
title_full Expression of Dopamine-Related Genes in Four Human Brain Regions
title_fullStr Expression of Dopamine-Related Genes in Four Human Brain Regions
title_full_unstemmed Expression of Dopamine-Related Genes in Four Human Brain Regions
title_short Expression of Dopamine-Related Genes in Four Human Brain Regions
title_sort expression of dopamine related genes in four human brain regions
topic dopamine
dopamine receptors
mesocortical
mesolimbic
nigrostrial
prefrontal cortex
url https://www.mdpi.com/2076-3425/10/8/567
work_keys_str_mv AT ansleygrimesstanfill expressionofdopaminerelatedgenesinfourhumanbrainregions
AT xueyuancao expressionofdopaminerelatedgenesinfourhumanbrainregions