From: IL-1ra delivered from poly(lactic-co-glycolic acid) microspheres attenuates IL-1β-mediated degradation of nucleus pulposus in vitro
Media collection interval
Estimated concentration of IL-1ra, μg/mL
0 to 3 days
5.21
3 to 7 days
1.21
7 to 10 days
0.67
10 to 14 days
0.74
14 to 17 days
0.48
17 to 20 days
0.44