suppressive effect on pituitary TSH secretion (9). They also found that it was much more potent than T4 (10), although it was less abundant than T4 in the thyroid gland (11). Based on these findings Gross and Pitt-Rivers hypothesized that T3 was the active peripheral thyroid hormone and T4 was its precursor.
(Photo: Tom Tingle/The Republic) U.S. Sen. Jeff Flake may have a long two years ahead of him. Up for re-election in 2018, the first-term Arizona Republican is already under attack from the right and the left.
Sen. Jeff Flake has apologized for racist online rants made by his son Tanner (left), also pictures Flake's younger son Dallin (right). Sen. Jeff Flake of Arizona, a devout Mormon and family man, has apologized for homophobic, racist and anti-Semitic comments posted online by his teenage son. The high schooler, Tanner, posted the offensive remarks in February and March.