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. 2017 Jan 3;7:39662. doi: 10.1038/srep39662

Figure 7. Effects of JNJ63955918, morphine and ziconotide in rat models of acute chemical and thermal pain.

Figure 7

(A) Effect of vehicle (●) or 0.3 μg (Inline graphic), 1 μg (Inline graphic) or 5 μg (Inline graphic) JNJ63955918 on formalin-induced flinching. The vertical dotted line separates phase I (0–10 min) from phase II (11–60 min). (B) Comparison of JNJ63955918 (red circles), ziconotide (open triangles) and morphine (closed triangles) in the formalin model. (C) Effect of intrathecal vehicle (Inline graphic) or 0.3 μg (Inline graphic), 1 μg (Inline graphic), 5 μg (Inline graphic) or 7.5 μg (Inline graphic) JNJ63955918 on thermally-induced tail flick. Latencies were significantly elevated between 15 and 120 min following 1 μg JNJ63955918 and between 15 and 360 min after 5 μg and 7.5 μg JNJ63955918 (2-way ANOVA with Bonferroni multiple comparisons vs baseline for each group). (D) Effect of intrathecal vehicle (Inline graphic) or 0.3 μg (Inline graphic), 1 μg (Inline graphic), 5 μg (Inline graphic) or 7.5 μg (Inline graphic) JNJ63955918 on escape latency in the hotplate assay. Latencies were significantly elevated between 15 and 120 min following 1 μg JNJ63955918 and between 15 and 360 min after 5 μg and 7.5 μg JNJ63955918 (2-way ANOVA with Bonferroni multiple comparisons vs baseline for each group). (E) Dose-response curves for JNJ63955918 in the rat tail flick and hotplate assays. Data are represented as mean ± s.e.m, n = 6–10 animals/group.