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Table 3 Effect of the endogenous opioid peptides in dre-oprm1 expression.

From: In Vivo Regulation of the μ Opioid Receptor: Role of the Endogenous Opioid Agents

  10 µmol/L Met-ENK 10 µmol/L MEGY 10 µmol/L β-END
24 hpf 1.03 ± 0.11 0.78 ± 0.17 0.18 ± 0.01a
48 hpf 1.11 ± 0.20 0.47 ± 0.07a 0.98 ± 0.09
  1. Relative dre-oprm1 expression fold-changes in embryos that were exposed to a dose of 10 µmol/L opioid peptides (Met-ENK, MEGY and β-END) for 24 and 48 hpf are shown. Data are normalized to dre-eef1a1l1. A total of 50 embryos were used for each treatment and for each time point; the experiment was performed in triplicate and repeated three times.
  2. ap < 0.05 (unpaired Student t test, n = 3).