however , comparison of the plasma half lives ( t 1/2 ) of the two peptides revealed that s-28 disappeared at a much slower rate ( t 1/2 = 2.84 +/- 0.15 min , mean +/- se , n = 7 ) than s-14 ( t 1/2 = 0.57 +/- 0.06 min ) .
C0074854
s-28
C0037659
s-14