Table 1.

Lack of effect of capsaicin and NMDA on MOR internalization

Drugs Drug concentration Incubation with drug Incubation without drug %MOR neurons with internalization n
None 20 min 11 ± 1 10
Capsaicin 10 μm 20 min 0 min 12 ± 3 4
NMDA, D-Ser 100 μm, 10 μm 1 min 10 min 8 ± 2 4
  • Coronal spinal cord slices were incubated at 35°C in aCSF containing peptidase inhibitors (amastatin, captopril, and phosphoramidon) and the drugs indicated. Data are the mean ± SE of n slices. ANOVA indicated no significant differences from “None” (p = 0.35).