Laboratory of Neurobiology, College of Life Sciences, and National Laboratory of Biomembrane and Membrane Biotechnology, Peking University, Beijing 100871, China;
Laboratory of Neurobiology, College of Life Sciences, and National Laboratory of Biomembrane and Membrane Biotechnology, Peking University, Beijing 100871, China;
nucleus accumbens; neuropeptide Y; Y1 receptor; carrageenan; anti-nociception; μ- and κ-opioid receptors;