Table 1.

Detection range of each protein by ELISA

Protein name	Standard curve range
IL-1βa	1.95−1000 pg/mL
iNOSb	0.1−8 U/L (sensitivity 0.01U/L)
TNF-αb	31.3−2000 pg/mL
VEGFa	1.95−1000 pg/mL
PEDFb	10−320 μg/L (the minimum detectable dose is typically less than 1 μg/L)

^aOwn validation

^bAs published by the manufacturer