Foot Hyperalgesia after Thoracic Burn Injury. Histochemical, Behavioral and Pharmacological Studies.
-
- Ueda Masashi
- Department of Anesthesiology, Kyoto Prefectural University of Medicine
-
- Hirose Munetaka
- Department of Anesthesiology, Kyoto Prefectural University of Medicine
-
- Takei Nobuyuki
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University
-
- Ibuki Takae
- Department of Anesthesiology, Kyoto Prefectural University of Medicine
-
- Naruse Yoshihisa
- Department of Anatomy & Neurobiology, Kyoto Prefectural University of Medicine
-
- Ibata Yasuhiko
- Office of the President, Kyoto Prefectural University of Medicine
-
- Tanaka Masaki
- Department of Anatomy & Neurobiology, Kyoto Prefectural University of Medicine
書誌事項
- タイトル別名
-
- -Histochemical, Behavioral and Pharmacological Studies-
この論文をさがす
抄録
Using behavioral, immunohistochemical and pharmacological studies, we report here that large thoracic burn injuries remotely induce hindpaw hyperalgesia during the healing stage.<br> During 2-3 weeks after thoracic burn injury when the skin was regenerating from the wound, we observed by formalin test that the number of flinching behaviors significantly increased and simultaneously we observed by von Frey test that rats developed mechano-hyperalgesia in the foot. In the dorsal horn of the lumbar spinal cord in burn injured rats, c-Fos expression was significantly augmented after plantar formalin injection. The expression of μ-opioid receptor in burn injured rats was significantly decreased compared with that in sham operated rats. The expression of substance P and CGRP in the lumbar dorsal horn was not different between burn and sham operated animals. We also observed that intrathecal administration of glutamate receptor antagonists (MK801 and CNQX) but not cyclooxigenase-2 antagonist (NS-398) reversed the threshold of von Frey test on the foot up to the control level at 2 weeks after injury.<br> Collectively, we analyzed a new pain model showing foot hyperalgesia after thoracic burn injury and demonstrated that neurotransmission of glutamate was enhanced at the lumbar spinal cord level by immunocytochemistry and intrathecal administration of NMDA and non NMDA antagonists.<br> Although the precise mechanism of how remote hyperalgesia at the healing stage developed in this model remains to be confirmed, substances such as trophic factors released from the regenerating skin may cause systemic hyperalgesia including in the foot.<br>
収録刊行物
-
- Acta Histochemica et Cytochemica
-
Acta Histochemica et Cytochemica 34 (6), 441-450, 2001
日本組織細胞化学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001204863283456
-
- NII論文ID
- 110003150865
-
- NII書誌ID
- AA00508022
-
- COI
- 1:CAS:528:DC%2BD38XivFGjsrg%3D
-
- ISSN
- 13475800
- 00445991
-
- HANDLE
- 10191/6165
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- IRDB
- Crossref
- NDL-Digital
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可