Thyroid-Related Protein Expression in the Human Thymus

Figure 6

mRNA expression levels of thyroid-related genes in the thymus. The relative amount of mRNA in human thymic tissues is expressed as percentages of levels in normal thyroid tissues. The expression levels of both sodium iodide symporter (NIS) (a) and thyroglobulin (Tg) (b) mRNA are markedly lower in the thymus than in normal thyroid tissues. The mRNA levels were analyzed in the four age groups: 20s, 30s, 40s, and over-50s groups as percentages of each mRNA level found in normal thyroid tissues.

(a)

(b)