Method of treating pruritus and a pharmaceutical composition for the method
申请人:——
公开号:US20020156129A1
公开(公告)日:2002-10-24
The object of the present invention is to provide a pharmaceutical composition for treatment of pruritus not associated with dermal inflammation such as pruritus caused by the decrease of cutaneous barrier function. Particularly, the object of the present invention is to provide a pharmaceutical composition, comprising at least one substances having the inhibitory function of NO activity in vivo, such as the inhibitory activity for NO biosynthesis and/or at least one substances having the eliminating activity for NO and a pharmaceutically acceptable carrier.
Another object of the present invention is to provide a method of treatment of pruritus not associated with dermal inflammation such as pruritus caused by the decrease of skin barrier function. The method comprises the step of administrating the pharmaceutical composition of the present invention.
本发明的目的是提供一种药物组合物,用于治疗与皮肤炎症无关的瘙痒症,如皮肤屏障功能下降引起的瘙痒症。特别是,本发明的目的是提供一种药物组合物,该组合物包含至少一种具有抑制体内 NO 活性功能的物质,如抑制 NO 生物合成的活性和/或至少一种具有消除 NO 活性的物质和药学上可接受的载体。
本发明的另一个目的是提供一种治疗与皮肤炎症无关的瘙痒症的方法,如皮肤屏障功能下降引起的瘙痒症。该方法包括施用本发明药物组合物的步骤。
AF, EKENSTAM, B. T.;AURELL, L. E.;CLAESON, K. G.;KARLSSON, B. G.
作者:AF, EKENSTAM, B. T.、AURELL, L. E.、CLAESON, K. G.、KARLSSON, B. G.
Various peptide anilides were synthesized by a conventional method with the object of obtaining specific substrates for human spleen fibrinolytic proteinase (SFP) and human leukocyte elastase (LE) in order to compare the substrate specificity of SFP with that of LE. It was found that the P1 Val compound among succinyl tripeptide p-nitroanilides (Suc-Tyr-Leu-X-pNA) exhibited the highest kcat/Km values for hydrolysis by SFP and LE, however, the tetrapeptide Suc-Ala-Tyr-Leu-Val-pNA [kcat/Km values (M-1S-1) for hydrolysis by SFP and LE : 84000 and 48000, respectively] was the preferred chromogenic substrate for SFP and LE because of its high solubility in the buffer and its moderate kcat/Km values. The substrate specificity of SFP was found to be similar to that of LE.