Table 2 Inhibition of basal levels of key osteoarthritis matrix metalloproteinase mRNA expression in primary chondrocytes.

From: Identifying chondroprotective diet-derived bioactives and investigating their synergism

Basal

MMP1

MMP13

ADAMTS4

ADAMTS5

Bioactive

Mean FC (95% CI)

p-value

Mean FC (95% CI)

p-value

Mean FC (95% CI)

p-value

Mean FC (95% CI)

p-value

Genistin

1.03 (−2.55 to 2.50)

0.999

1.09 (−3.14 to 2.96)

0.999

0.96 (−0.48 to 0.56)

0.999

Luteolin

0.96 (−2.48 to 2.56)

0.999

1.83 (−3.88 to 2.22)

0.997

0.71 (−0.23 to 0.81)

0.766

Polydatin

0.90 (−2.42 to 2.62)

0.999

1.88 (−3.93 to 2.16)

0.985

0.98 (−0.50 to 0.54)

0.999

Curcumin

1.13 (−2.65 to 2.39)

0.999

2.43 (−4.48 to 1.61)

0.822

0.70 (−0.22 to 0.83)

0.838

Apigenin

0.76 (−2.28 to 2.77)

0.912

2.05 (−4.10 to 2.00)

0.996

0.59 (−0.11 to 0.93)

0.337

Myricetin

0.74 (−2.26 to 2.78)

0.914

1.89 (−3.94 to 2.16)

0.999

0.77 (−0.29 to 0.75)

0.965

Isoliqu

0.95 (−2.47 to 2.57)

0.999

2.02 (−4.07 to 2.02)

0.991

0.49 (−0.03 to 1.01)

0.148

Ursolic acid

4.35 (−5.87 to −0.82)

0.004

0.64 (−3.04 to 3.77)

0.864

0.69 (−0.21 to 0.83)

0.532

EGCG

1.11 (−2.63 to 2.41)

0.999

1.81 (−3.86 to 2.24)

0.999

0.62 (−0.14 to 0.90)

0.442

Naringin

0.95 (−2.48 to 2.57)

0.999

1.09 (−3.14 to 2.95)

0.999

0.92 (−0.44 to 0.60)

0.999

Sulforaphane

0.92 (−2.44 to 2.60)

0.999

1.75 (−3.80 to 2.29)

0.993

0.25 (0.23 to 1.27)

0.001

  1. Basal matrix metalloproteinase gene expression in human articular primary chondrocytes pre-treated with 10 µM of each bioactive for 6 hours. Cell isolates from three patients were used (n = 3) and each independent experiment performed in triplicate. Expression levels of MMP1, MMP13, ADAMTS4 and ADAMTS5 mRNA, normalised to 18S were measured by RT-qPCR. Mean fold change (FC) to control, 95% confidence intervals (CI) are shown. One-way ANOVA, and all treatments were compared to control with Dunnett’s post-test corrected p-values shown.