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Genetic variants in AVPR1A linked to autism predict amygdala activation and personality traits in healthy humans

  1. Author:
    Meyer-Lindenberg, A.
    Kolachana, B.
    Gold, B.
    Olsh, A.
    Nicodemus, K. K.
    Mattay, V.
    Dean, M.
    Weinberger, D. R.

  2. Author Address

    Weinberger, D. R.] NIMH, Clin Brain Disorders Branch, Genes Cognit & Psychosis Program, Intramural Res Program,NIH,DHHS, Bethesda, MD 20892 USA. [Meyer-Lindenberg, A.] NIMH, Unit Syst Neurosci Psychiat, NIH, DHHS, Bethesda, MD 20892 USA. [Meyer-Lindenberg, A.; Mattay, V.] NIMH, Neuroimaging Core Facil, NIH, DHHS, Bethesda, MD 20892 USA. [Meyer-Lindenberg, A.] Cent Inst Mental Hlth, D-6800 Mannheim, Germany. [Gold, B.; Olsh, A.; Dean, M.] NCI Frederick, Human Genet Sect, Lab Genom Divers, Ctr Canc Res, Frederick, MD USA.
    1. Year: 2009
  2. Journal: Molecular Psychiatry
    1. 14
    2. 10
    3. Pages: 968-975
  4. Type of Article: Article
  1. Abstract:

    In mammals, the neuropeptide vasopressin is a key molecule for complex emotional and social behaviours. Two microsatellite polymorphisms, RS1 and RS3, near the promoter of AVPR1A, encoding the receptor subtype most heavily implicated in behaviour regulation, have been linked to autism and behavioural traits. However, the impact of these variants on human brain function is unknown. Here we show that human amygdala function is strongly associated with genetic variation in AVPR1A. Using an imaging genetics approach in a sample of 121 volunteers studied with an emotional face-matching paradigm, we found that differential activation of amygdala is observed in carriers of risk alleles for RS3 and RS1. Alleles in RS1 previously reported to be significantly over- and undertransmitted to autistic probands showed opposing effects on amygdala activation. Furthermore, we show functional difference in human brain between short and long repeat lengths that mirror findings recently obtained in a corresponding variant in voles. Our results indicate a neural mechanism mediating genetic risk for autism through an impact on amygdala signalling and provide a rationale for exploring therapeutic strategies aimed at abnormal amygdala function in this disorder. Molecular Psychiatry (2009) 14, 968-975, doi:10.1038/mp.2008.54, published online 20 May 2008

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  2. DOI: 10.1038/mp.2008.54
  3. PMID: 18490926

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