Clonidine intensifies memantine cutaneous analgesia in response to local skin noxious pinprick in the rat

Bor Tsang Wu, Kuan Ting Chen, Kuo Sheng Liu, Yu Wen Chen, Ching Hsia Hung, Jhi Joung Wang

研究成果: Article

10 引文 (Scopus)

摘要

Background The purposes of this study were to evaluate the co-administration of clonidine with memantine and to determine whether it has a peripheral action in intensifying cutaneous analgesia. Methods Cutaneous analgesia was examined through inhibition of the cutaneous trunci muscle reflex in response to the local noxious pinprick in rats. Effect of the added subcutaneous clonidine to memantine on infiltrative cutaneous analgesia was assessed and compared with the local anesthetic lidocaine. Results On the 50% effective dose (ED50) basis, the rank of drug potency was memantine [4.05 (3.95-4.18) μmol] > lidocaine [5.81 (5.70-5.98) μmol] (p < 0.01). Clonidine at a dose of 0.12 μmol did not elicit cutaneous analgesia. Mixtures of clonidine (0.12 μmol) with drug (memantine or lidocaine) at ED50 or ED95 prolonged the duration of action and enhanced the potency as infiltrative cutaneous analgesia. Clonidine enhanced the lidocaine cutaneous analgesia in which had a better effect than added to memantine. Conclusions Our resulting data showed that memantine displayed more potent cutaneous analgesia than lidocaine. Co-administration of memantine or lidocaine with clonidine increased the potency and duration of the cutaneous analgesia. Clonidine intensified the effects of lidocaine promoting cutaneous analgesia than added to memantine.

原文English
頁(從 - 到)485-489
頁數5
期刊Pharmacological Reports
67
發行號3
DOIs
出版狀態Published - 2015 六月

指紋

Memantine
Clonidine
Analgesia
Lidocaine
Skin
Local Anesthetics
Pharmaceutical Preparations
Reflex

All Science Journal Classification (ASJC) codes

  • Pharmacology

引用此文

Wu, Bor Tsang ; Chen, Kuan Ting ; Liu, Kuo Sheng ; Chen, Yu Wen ; Hung, Ching Hsia ; Wang, Jhi Joung. / Clonidine intensifies memantine cutaneous analgesia in response to local skin noxious pinprick in the rat. 於: Pharmacological Reports. 2015 ; 卷 67, 編號 3. 頁 485-489.
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abstract = "Background The purposes of this study were to evaluate the co-administration of clonidine with memantine and to determine whether it has a peripheral action in intensifying cutaneous analgesia. Methods Cutaneous analgesia was examined through inhibition of the cutaneous trunci muscle reflex in response to the local noxious pinprick in rats. Effect of the added subcutaneous clonidine to memantine on infiltrative cutaneous analgesia was assessed and compared with the local anesthetic lidocaine. Results On the 50{\%} effective dose (ED50) basis, the rank of drug potency was memantine [4.05 (3.95-4.18) μmol] > lidocaine [5.81 (5.70-5.98) μmol] (p < 0.01). Clonidine at a dose of 0.12 μmol did not elicit cutaneous analgesia. Mixtures of clonidine (0.12 μmol) with drug (memantine or lidocaine) at ED50 or ED95 prolonged the duration of action and enhanced the potency as infiltrative cutaneous analgesia. Clonidine enhanced the lidocaine cutaneous analgesia in which had a better effect than added to memantine. Conclusions Our resulting data showed that memantine displayed more potent cutaneous analgesia than lidocaine. Co-administration of memantine or lidocaine with clonidine increased the potency and duration of the cutaneous analgesia. Clonidine intensified the effects of lidocaine promoting cutaneous analgesia than added to memantine.",
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Clonidine intensifies memantine cutaneous analgesia in response to local skin noxious pinprick in the rat. / Wu, Bor Tsang; Chen, Kuan Ting; Liu, Kuo Sheng; Chen, Yu Wen; Hung, Ching Hsia; Wang, Jhi Joung.

於: Pharmacological Reports, 卷 67, 編號 3, 06.2015, p. 485-489.

研究成果: Article

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AU - Chen, Kuan Ting

AU - Liu, Kuo Sheng

AU - Chen, Yu Wen

AU - Hung, Ching Hsia

AU - Wang, Jhi Joung

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N2 - Background The purposes of this study were to evaluate the co-administration of clonidine with memantine and to determine whether it has a peripheral action in intensifying cutaneous analgesia. Methods Cutaneous analgesia was examined through inhibition of the cutaneous trunci muscle reflex in response to the local noxious pinprick in rats. Effect of the added subcutaneous clonidine to memantine on infiltrative cutaneous analgesia was assessed and compared with the local anesthetic lidocaine. Results On the 50% effective dose (ED50) basis, the rank of drug potency was memantine [4.05 (3.95-4.18) μmol] > lidocaine [5.81 (5.70-5.98) μmol] (p < 0.01). Clonidine at a dose of 0.12 μmol did not elicit cutaneous analgesia. Mixtures of clonidine (0.12 μmol) with drug (memantine or lidocaine) at ED50 or ED95 prolonged the duration of action and enhanced the potency as infiltrative cutaneous analgesia. Clonidine enhanced the lidocaine cutaneous analgesia in which had a better effect than added to memantine. Conclusions Our resulting data showed that memantine displayed more potent cutaneous analgesia than lidocaine. Co-administration of memantine or lidocaine with clonidine increased the potency and duration of the cutaneous analgesia. Clonidine intensified the effects of lidocaine promoting cutaneous analgesia than added to memantine.

AB - Background The purposes of this study were to evaluate the co-administration of clonidine with memantine and to determine whether it has a peripheral action in intensifying cutaneous analgesia. Methods Cutaneous analgesia was examined through inhibition of the cutaneous trunci muscle reflex in response to the local noxious pinprick in rats. Effect of the added subcutaneous clonidine to memantine on infiltrative cutaneous analgesia was assessed and compared with the local anesthetic lidocaine. Results On the 50% effective dose (ED50) basis, the rank of drug potency was memantine [4.05 (3.95-4.18) μmol] > lidocaine [5.81 (5.70-5.98) μmol] (p < 0.01). Clonidine at a dose of 0.12 μmol did not elicit cutaneous analgesia. Mixtures of clonidine (0.12 μmol) with drug (memantine or lidocaine) at ED50 or ED95 prolonged the duration of action and enhanced the potency as infiltrative cutaneous analgesia. Clonidine enhanced the lidocaine cutaneous analgesia in which had a better effect than added to memantine. Conclusions Our resulting data showed that memantine displayed more potent cutaneous analgesia than lidocaine. Co-administration of memantine or lidocaine with clonidine increased the potency and duration of the cutaneous analgesia. Clonidine intensified the effects of lidocaine promoting cutaneous analgesia than added to memantine.

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