@article{oai:tohoku-mpu.repo.nii.ac.jp:00000054, author = {結城, 正幸 and Yuhki, Masayuki and 渡邉, 廣行 and Watanabe, Hiroyuki and 岩田, 陽子 and Iwata, Yoko and 中山, 大助 and Nakayama, Daisuke and 照井, 潤 and Terui, Jun and 櫻田, 忍 and Sakurada, Shinobu}, issue = {50}, journal = {東北薬科大学研究誌, Journal of Tohoku Pharmaceutical University}, month = {Dec}, note = {Intrathecal (i.t.) administration of substance P or capsaicin elicited a characteristic behavioural response consisting of scratching, biting and licking (SBL) in mice. The behavioural response induced by substance P or capsaicin was almost completely inhibited by simultaneous i. t. injection of [D-Ala^2, MePhe^4, Gly(ol)^5] enkephalin (DAMGO), H-Tyr-D-Arg-Phe-β-Ala-OH (TAPA) or H-Tyr-D-Arg-Phe-β-Ala-NH_2 (TAPA-NH_2). Pretreatment with naloxonazine significantly antagonized inhibitory action of TAPA-NH_2 on substance Pinduced SBL behavioural response without antagonistic effect against DAMGO and TAPA, while antinociceptive effect of DAMGO, TAPA and TAPA-NH_2 was completely inhibited by the pretreatment with naloxone. TAPA-induced antinociception but not DAMGO-and TAPA-NH_2-induced antinociception on behavioural response produced by i. t. capsaicin was completely inhibited by the pretreatment with naloxonazine, whereas naloxone at a dose of 1 mg/kg s. c. completely antagonized the antinociceptive effect of i. t. co-administered TAPA, DAMGO- or TAPA-NH_2. These results led us to understanding of differential action mechanism of TAPA- and TAPA-NH_2-induced antinociception, as assayed by SBL behavioural response produced by both capsaicin and substance P.}, pages = {179--184}, title = {Dermorphin analogueであるH-Tyr-D-Arg-Phe-β-Ala-OHおよびH-Tyr-D-Arg-Phe-β-Ala-NH_2によるcapsaicinおよびsubstance P誘発性SBL行動抑制の違いについて}, year = {2003}, yomi = {ユウキ, マサユキ and ワタナベ, ヒロユキ and イワタ, ヨウコ and ナカヤマ, ダイスケ and テルイ, ジュン and サクラダ, シノブ} }