In contrast to a normal thyroid (Figure 1), hypothyroidism occurs when too little thyroid hormone (T4 and T3) is generated by the thyroid gland (Figure 2). In response, changes in the hypothalamus and the pituitary gland lead to increased TSH production in an effort to increase the thyroidâs output.
(a) U.S. Treasury securities held by the Federal Reserve: All Maturities, Millions of Dollars, Not Seasonally Adjusted (TREAST) Write a custom formula to transform one or more series or combine two or more series. You can begin by adding a series to combine with your existing series.
There are two primary types of U.S. government debt securities: issues with direct government backing, as is the case with Treasury and federal agency issues, and issues withmoral backing or guarantee, as is the case with government-sponsored enterprise (GSE) issues.