Physiological control of emotion-related behaviors by endogenous enkephalins involves essentially the delta opioid receptors
Keywords: antidepressant-like effects; mice; antinociception; anxiety; knockout animals; ANOVA; analysis of variance; APN; aminopeptidase N; MOR; mu opioid receptor; NEP; neutral endopeptidase; RB 101; H3N-CH(CH2-CH2-S-CH3)-CH2-S-S-CH2-CH(CH2Ï)-CONH-CH(CH2Ï)-COOC