Quantitative genetics of monoamine metabolites in pedigreed baboons, papio hamadryas

J. Rogers, A. G. Comuzzie, L. Martin, J. J. Mann, J. R. Kaplan

Research output: Contribution to journalArticle

Abstract

The monoamine neurotransmitters serotonin, dopamine and norepinephrine are related to a number of fundamental neurophysiological processes, as well as to psychiatric diseases such as depression, anxiety disorders, bipolar disorder and risk of suicide. While it is clear that genetic variation among people influences levels of neurotransmitters found in the cerebrospinal fluid, the details of this genetic control are not understood. In an effort to learn more about the genetics of monoamine levels, we measured levels of metabolites for these monoamines (5-HIAA, HVA and MHPG) in 270 pedigreed baboons. All study animals can be linked into a single large pedigree, providing unique opportunities to examine quantitative genetic parameters. All three compounds exhibit significant heritability (5-HIAA h2 = 0.30, HVA h2 = 0.50, MHPG h2 = 0.36). Bivariate genetic correlations calculated using variance components methods reveal that the genetic correlation between MHPG and HVA is rho = 0.91, indicating that 83% of the genetic variance is shared between these two traits. In addition, it has long been known that HVA and 5-HIAA are phenotypically correlated in humans. Our results show that in baboons the genetic correlation is 0.50 and environmental correlation 0.71, both statistically significant. This means the common phenotypic correlation of HVA and 5-HIAA is due both to shared genes and shared environmental effects. A genome scan is planned to locate specific loci controlling monoamine levels in the baboons.

Original languageEnglish (US)
Pages (from-to)582
Number of pages1
JournalAmerican Journal of Medical Genetics - Neuropsychiatric Genetics
Volume105
Issue number7
StatePublished - Oct 8 2001
Externally publishedYes

Fingerprint

Papio hamadryas
Hydroxyindoleacetic Acid
Papio
Methoxyhydroxyphenylglycol
Neurotransmitter Agents
Pedigree
Anxiety Disorders
Bipolar Disorder
Suicide
Psychiatry
Cerebrospinal Fluid
Dopamine
Serotonin
Norepinephrine
Genome
Depression
Genes

ASJC Scopus subject areas

  • Genetics(clinical)
  • Neuropsychology and Physiological Psychology
  • Neuroscience(all)

Cite this

Quantitative genetics of monoamine metabolites in pedigreed baboons, papio hamadryas. / Rogers, J.; Comuzzie, A. G.; Martin, L.; Mann, J. J.; Kaplan, J. R.

In: American Journal of Medical Genetics - Neuropsychiatric Genetics, Vol. 105, No. 7, 08.10.2001, p. 582.

Research output: Contribution to journalArticle

Rogers, J. ; Comuzzie, A. G. ; Martin, L. ; Mann, J. J. ; Kaplan, J. R. / Quantitative genetics of monoamine metabolites in pedigreed baboons, papio hamadryas. In: American Journal of Medical Genetics - Neuropsychiatric Genetics. 2001 ; Vol. 105, No. 7. pp. 582.
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