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. 2005 Dec;142(3):490–497. doi: 10.1111/j.1365-2249.2005.02937.x

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© 2005 British Society for Immunology

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Fig. 3 — (a) Effect of c-AMP inhibitor and H89 on osteoprotegerin (OPG) production in cultures of human gingival fibroblasts (HGF) and periodontal ligament fibroblasts (PDL). Conditioned media were collected and analysed by enzyme-linked immunosorbent assay (ELISA). Data are expressed as mean ± s.d. of four experiments. An asterisk (*) represents statistical significance (P < 0·05). (b) Effect of c-AMP and forskolin (Fors) on OPG production in cultures of HGF and PDL. Conditioned media were collected and analysed by ELISA. Data are expressed as mean ± s.d. of four experiments. An asterisk (*) represents statistical significance (P < 0·05).