Abstract:
BACKGROUND:Concentrations of monoamine metabolites in human cerebrospinal fluid (CSF) have been used extensively as indirect estimates of monoamine turnover in the brain. CSF monoamine metabolite concentrations are partly determined by genetic influences. METHODS:We investigated possible relationships between DNA polymorphisms in the serotonin 2C receptor (HTR2C), the serotonin 3A receptor (HTR3A), the dopamine D4 receptor (DRD4), and the dopamine beta-hydroxylase (DBH) genes and CSF concentrations of 5-hydroxyindolacetic acid (5-HIAA), homovanillic acid (HVA), and 3-methoxy-4-hydroxyphenylglycol (MHPG) in healthy volunteers (n = 90). RESULTS:The HTR3A 178 C/T variant was associated with 5-HIAA levels (p = 0.02). The DBH-1021 heterozygote genotype was associated with 5-HIAA (p = 0.0005) and HVA (p = 0.009) concentrations. Neither the HTR2C Cys23Ser variant, nor the DRD4 -521 C/T variant were significantly associated with any of the monoamine metabolites. CONCLUSIONS:The present results suggest that the HTR3A and DBH genes may participate in the regulation of dopamine and serotonin turnover rates in the central nervous system.
journal_name
BMC Psychiatryjournal_title
BMC psychiatryauthors
Jönsson EG,Bah J,Melke J,Abou Jamra R,Schumacher J,Westberg L,Ivo R,Cichon S,Propping P,Nöthen MM,Eriksson E,Sedvall GCdoi
10.1186/1471-244X-4-4keywords:
subject
Has Abstractpub_date
2004-03-04 00:00:00pages
4issn
1471-244Xpii
1471-244X-4-4journal_volume
4pub_type
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