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DRD4 is a gene which codes for a type dopamine receptor known as the D4 receptor. D4 receptors are considered D2-like.

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[1]

Main article: ADHD - DRD-4 receptor


  1. 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 free full text

See also

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