Maternal Separation Enhances Conditioned Fear and Decreases the mRNA Levels of the Neurotensin Receptor 1 Gene with Hypermethylation of This Gene in the Rat Amygdala

• Hiroyuki Toda,

  Affiliations Department of Psychiatry, National Defense Medical College, Tokorozawa, Japan, Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan

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• Shuken Boku,

  Affiliation Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, Bronx, New York, United States of America

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• Shin Nakagawa ,

  * E-mail: snakaga@med.hokudai.ac.jp

  Affiliation Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan

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• Takeshi Inoue,

  Affiliation Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan

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• Akiko Kato,

  Affiliation Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan

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• Naoki Takamura,

  Affiliation Pharmaceutical Laboratories, Dainippon Sumitomo Pharma Co. Ltd., Osaka, Japan

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• Ning Song,

  Affiliations Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan, Department of Psychiatry, The first hospital of China Medical University, Shenyang, China

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• Masashi Nibuya,

  Affiliation Department of Psychiatry, National Defense Medical College, Tokorozawa, Japan

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• Tsukasa Koyama,

  Affiliation Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan

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• Ichiro Kusumi

  Affiliation Department of Psychiatry, Hokkaido University Graduate School of Medicine, Sapporo, Japan

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