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Table 1 Comparison of TIMP-1, MMP-2/TIMP2 and MMP-9 in maternal serum

From: The serum levels of circulating matrix metalloproteinase MMP-9, MMP-2/TIMP-2 complex and TIMP-1 do not change significantly during normal pregnancy: a pilot study

Protein

n

Pregnancy week 10 (n = 18)

Pregnancy weeks 15–16 (n = 31)

Pregnancy weeks 26–28 (n = 27)

Pregnancy weeks 36–37 (n = 24)

TIMP-1

33

212 (204–313)

240 (164–288)

208 (151–269)

196 (85–291)

MMP-2-TIMP-2

33

199 (106–269)

191 (89–235)

204 (102–246)

233 (110–329)

MMP-9

34

19 (14–26)

15 (8–26)

14 (6–42)

14 (8–64)

  1. Results are expressed as median (range) (ng/ml)