[Alterations in the Level of mRNA of TPH1, TPH2 Genes, Tryptophan Hydroxylase Activity and Serotonin Metabolism in Mouse Brain Five Days after Lipopolysaccharide Administration].

Tryptophan hydroxylases 1 and 2 (TPH1 and TPH2) play a key role in the synthesis of serotonin (5-HT), a hormone and neurotransmitter, in the peripheral organs and brain, respectively. The main aim of this study was to clarify the distribution of mRNA of the Tph1 and Tph2 genes in brain structures under normal conditions and after inflammation. The experiments were carried out on young (4 weeks old) male C57BL/6 mice.