MMP-9 Concentration in Peritoneal Fluid Is a Valuable Biomarker Associated with Endotoxemia in Equine Colic

Table 2

Species, limits of detection, and detection ranges of ELISA kits used for quantification of matrix-metalloproteinase (MMP), tissue inhibitors of metalloproteinase (TIMP), interleukin (IL)-1β, and tumor necrosis factor-alpha (TNF-α) concentration in equine plasma and peritoneal fluid. Details on manufacturers are given in the footnotes.

Parameter	Species	Limit of detection	Detection range
MMP-2^a	Horse	0.56 ng/ml	1.56–100 ng/ml
MMP-8^b	Horse	18 pg/ml	93–6000 pg/ml
MMP-9^c	Horse	0.25 ng/ml	0.5–24 ng/ml
TIMP-1^d	Horse	0.241 ng/ml	0.625–40 ng/ml
TIMP-2^e	Horse	3.1 ng/ml	7.8–500 ng/ml
IL-1β^f	Horse	5.7 pg/ml	15.6–1000 pg/ml
TNF-α^g	Horse	2.9 pg/ml	7.8–500 pg/ml