The analgesic effect of nalbuphine and its long-acting prodrug, nalbuphine pivalate, in rats

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题名:	The analgesic effect of nalbuphine and its long-acting prodrug, nalbuphine pivalate, in rats
作者:	(Chen KT);(Hu OY);(Ho ST);陳郁文(Yu-Wen Chen);(Wang JJ)*
贡献者:	健康照護學院物理治療學系
关键词:	止痛,Nalbuphine,前趨藥,nalbuphine privalate;Analgesia,Nalbuphine,Prodrug, nalbuphine pivalate
日期:	2002-12
上传时间:	2009-08-26 15:55:28 (UTC+8)
摘要:	"背景：Nalbuphine是一個具有鴉片接受體拮抗及親合作用的止痛劑。近日來我們已合成了一個Nalbuphine之前趨藥Nalbuphine Pivalate，本研究的目的在評估這前趨藥之止痛效果及效期。方法：將友鄰性SD鼠分爲4組，每組12雙。Nalbuphine HCI制成水溶液且以25μmol/公觔行大腿肌肉注射。Nalbuphine Pivalate以芝蔴油制成油溶液且以25μmol/公觔行大腿肌肉注射，以上二種劑型之溶液（生理食鹽水及芝蔴油）也被用來作爲肌肉注射當作對照組。以冰酒精閃尾試驗(-30℃)測試藥物的止痛效果及效期。結果：Nalbuphine HCI及Nalbuphine Pivalate皆有止痛效果，Nalbuphine HCI僅有2小時之止痛效期，而Nalbuphine pivalate卻有30小時之止痛效期。結論：本研究結果顯示Nalbuphine Pivalate有一個非常長效期的止痛作用，這令人興奮的結果值得我們做更進一步的探討。 Background: Nalbuphine is an opioid-analgesic with agonist-antagonist properties. Recently, we have synthesized a nalbuphine prodrug, nalbuphine pivalate. The aim of the present study was to evaluate the analgesic effect and the analgesic duration of this prodrug. Methods: Forty-eight male Sprague-Dawley rats (4 groups, n=12 in each group) were used. Rats in group 1 received nalbuphine HCI 25 μmol/kg (in saline) intramuscular injection; rats in group 2 received nalbuphine pivalate 25 pmol/kg (in sesame oil) intramuscular injection, whereas those in groups 3 and 4 received saline and sesame oil respectively. The analgesic effects of testing agents were evaluated using the cold ethanol tail-flick test (-30℃). Results: Both nalbuphine HCI and nalbuphine pivalate demonstrated significant analgesic effects. The analgesic duration of nalbuphine HCI was 2 h while that of nalbuphine pivalate was 30 h. Conclusions: Nalbuphine pivalate has a very long duration of analgesic action. This fascinating finding is worth further evaluation. "
關聯:	Acta Anesthesiologica Sinica 40(4)191 ~195
显示于类别:	[物理治療學系(停用)] 期刊論文

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