tokens: To understand the molecular regulation of these genes in thyroid cells , the effect of thyroid transcription factor 1 ( TTF-1 ) and the paired domain containing protein 8 ( Pax-8 ) on the transcriptional activity of the deiodinase promoters were studied .
folded_tokens: to understand the molecular regulation of these gene in thyroid cell , the effect of thyroid transcription factor 1 ( ttf-1 ) and the paired domain contain protein 8 ( pax-8 ) on the transcriptional activity of the deiodinase promoter be study .