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. Bill Nelson. Nelson, a Democrat, has been a senator from Florida since Jan 3, 2001 (next election in 2018). He was previously the representative for Florida's 11th congressional district (1983-1990); and the representative for Florida's 9th congressional district (1979-1982). I am a constituent.