![Figure 6. Coincubation with racemic ketamine and opioid receptor subtype selective agonists (A, [micro sign]=[D-Ala2, MePhe4, Gly(ol)5] enkephalin [DAMGO]; B, [small kappa, Greek]= spiradoline; C, [small delta, Greek]=[D-pen2, D-pen5] enkephalin [DPDPE]) produced neither an additive nor synergistic interaction. Data are mean +/− SEM (n = 5.)](https://asa2.silverchair-cdn.com/asa2/content_public/journal/anesthesiology/90/1/10.1097_00000542-199901000-00023/2/23ff6.png?Expires=1716620712&Signature=CUoSdNJDRQiQYYrueWlhFPW7nhKOLdnwOK5Fq5F9on4Q6e3unxLD1KUxfBIJx1E83icokNEBTxuMTceUtomlBiiwUmMFriD3hQzXzoKF8~3r9TJ1w0OOirFk7XIF5r1BHZEfEnYWXRicWtvkmLm6R2BoOrcPvbd~wXcGtfztSbgHw56OCuuhQqdoDwOzAex6Lo7KValEu2ONZFEeCE3BXVc-BKjYpb6lQmMEKs0Nwq1oS4vqLg8ALMP9TLoc~3QIuq2YMQDR0xflJMeBfRFOsZAmqCqIcIevjRMFg8M5x6eAU1AQTZGNi5DOHWji79QW~P3Gn5eA7V2hitWzd9g6HQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Figure 6. Coincubation with racemic ketamine and opioid receptor subtype selective agonists (A, [micro sign]=[D-Ala2, MePhe4, Gly(ol)5] enkephalin [DAMGO]; B, [small kappa, Greek]= spiradoline; C, [small delta, Greek]=[D-pen2, D-pen5] enkephalin [DPDPE]) produced neither an additive nor synergistic interaction. Data are mean +/− SEM (n = 5.)
