'''DRD4''' is a [[gene]] which codes for a type [[dopamine]] [[receptor (biology)|receptor]] known as the D<sup>4</sup> receptor. D4 receptors are considered [[D2-like]].
'''DRD4''' is a [[gene]] which codes for a type [[dopamine]] [[receptor (biology)|receptor]] known as the D<sup>4</sup> receptor. D4 receptors are considered [[D2-like]].
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==Link with ADHD==
A specific [[allele]] of this gene (known as the 'DRD4 long' variant) has been loosely linked to a susceptibility for developing [[ADHD]]<!--
A specific [[allele]] of this gene (known as the 'DRD4 long' variant) has been loosely linked to a susceptibility for developing [[ADHD]]<!--
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--><ref name="dentate_gyrus">Faraone SV, Doyle AE, Mick E, Biederman J. (2002) ''Meta-analysis of the association between the 7-repeat allele of the dopamine D(4) receptor gene and attention deficit hyperactivity disorder.'' Am J Psychiatry. 158(7):1052-7. PMID 11431226 [http://ajp.psychiatryonline.org/cgi/content/full/158/7/1052 free full text]</ref><!--
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--><ref name="dentate_gyrus">Faraone SV, Doyle AE, Mick E, Biederman J. (2002) ''Meta-analysis of the association between the 7-repeat allele of the dopamine D(4) receptor gene and attention deficit hyperactivity disorder.'' Am J Psychiatry. 158(7):1052-7. PMID 11431226 [http://ajp.psychiatryonline.org/cgi/content/full/158/7/1052 free full text]</ref>
↑Faraone SV, Doyle AE, Mick E, Biederman J. (2002) Meta-analysis of the association between the 7-repeat allele of the dopamine D(4) receptor gene and attention deficit hyperactivity disorder. Am J Psychiatry. 158(7):1052-7. PMID 11431226free full text