A composition, method and article of manufacture for the amelioration of pain comprising: a polyamine having the formula:
R
1
R
2
N
1
—A—[N
2
R
3
—B]
a
—[N
3
R
4
—C]
b
—N
4
R
5
R
6
wherein:
R
1
-R
6
may be the same or different and are alkyl, aryl, aryl alkyl, cycloalkyl, optionally having an alkyl chains interrupted by at least one etheric oxygen atom, or hydrogen;
N
1
-N
4
are nitrogen atoms capable of protonation at physiological pH's; a and b may be the same or different and are integers from 0 to 4; A, B and C may be the same or different and are bridging groups which effectively maintain the distance between the nitrogen atoms such that the polyamine: (i) is capable of uptake by a target cell upon administration of the polyamine to a human or non-human animal; and (ii) upon uptake by the target cell, competitively binds via an electrostatic interaction between the positively charged nitrogen atoms to substantially the same biological counter-anions as the intra-cellular natural polyamines in the target cell; the polyamine, upon binding to the biological counter-anion in the cell, functions to alleviate pain; a mixture of the amines; a derivative, salt or complex of the amine wherein the derivative, salt or complex former is physiologically acceptable and the formation of the salt, derivative or complex does not materially affect the pain amelioration properties of the amine; a mixture of the derivatives, salts and/or complexes, or a prodrug that provides the amine, mixture of the amines, the derivative, salt or complex or mixture of the derivatives, salts and/or complexes.
一种用于改善疼痛的组合物、方法和制造品,包括:具有以下式子的
多胺:
R
1
R
2
N
1
-A-[N
2
R
3
-B]
a
-[N
3
R
4
-C]
b
-N
4
R
5
R
6
其中
R
1
-R
6
可以相同或不同,并且是烷基、芳基、芳基烷基、环烷基(可选择烷基链被至少一个醚氧原子打断)或氢;
N
1
-N
4
是在生理 pH 值下能够质子化的氮原子;a 和 b 可以相同或不同,是 0 至 4 的整数;A、B 和 C 可以相同或不同,是桥基,可有效保持氮原子间的距离,从而使
多胺:(i) 在对人或非人动物施用
多胺后,能够被靶细胞吸收;以及 (ii) 在被靶细胞吸收后,通过带正电荷的氮原子之间的静电相互作用,竞争性地与靶细胞中与细胞内天然
多胺基本相同的
生物反负离子结合;
多胺在与细胞中的
生物反负离子结合后,起到减轻疼痛的作用;胺的混合物;胺的衍
生物、盐或络合物,其中前者的衍
生物、盐或络合物是生理上可接受的,并且盐、衍
生物或络合物的形成不会对胺的止痛特性产生实质性影响;衍
生物、盐和/或络合物的混合物,或提供胺、胺的混合物、衍
生物、盐或络合物或衍
生物、盐和/或络合物的混合物的原药。