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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2008-4-14
pubmed:abstractText
Increased platelet serotonin level (PSL) has been consistently found in a portion of autistic patients. Suggested mechanisms for hyperserotonemia in autism have been increased synthesis of serotonin (5HT) by tryptophan hydroxylase (TPH), increased uptake into platelets through 5HT transporter (5HTt), diminished release from platelets through 5HT2A receptor (5HT2Ar) and decreased metabolism by monoamine oxydase (MAOA). The allelic influence of genes, encoding the mentioned 5HT elements, on PSL was investigated in 63 autistic subjects. Our study shows that 5HTt-LPR and -1438AG 5HT(2Ar) genotypes did not significantly affect PSL. However, significantly higher PSLs were observed in subjects with "cc" genotype of a218c TPH and subjects with "4" genotype of uVNTR MAOA. In addition, when TPH-cc and MAOA-4 were combined as "high 5HT" genotypes, a correlative increase in PSL was observed with the increase in the number of "high 5HT" genotypes. These results suggest a possible synergistic effect of genes regulating 5HT synthesis/degradation in dysregulation of the peripheral 5HT homeostasis of autistic patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0350-6134
pubmed:author
pubmed:issnType
Print
pubmed:volume
32 Suppl 1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
75-80
pubmed:dateRevised
2009-2-4
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Hyperserotonemia in autism: the potential role of 5HT-related gene variants.
pubmed:affiliation
Department of Animal Physiology, Faculty of Science, University of Zagreb, Zagreb, Croatia. dubravka@zg.biol.pmf.hr
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, Non-U.S. Gov't