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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: Eur Spine J. 2017 Sep 7;27(5):1013–1020. doi: 10.1007/s00586-017-5291-4

Fig. 3.

Fig. 3

Gene expression of disc cells after 3h and 24h of co-culture with a 10-fold and 100-fold excess of P. acnes relative to disc cells alone. Lipopolysaccaride (LPS) was used as positive control. a1, b1, c1, d1: relative gene expression of IL1, IL6, IL8, and CCL2 of responders, respectively; a2, b2, c2, d2: relative gene expression of non-responders. Significant differences to disc cells alone are indicated: * p<0.05, ** p <0.01, *** p<0.001.