This invention concerns new methods and compositions that are useful in preventing and ameliorating cachexia, the clinical syndrome of poor nutritional status and bodily wasting associated with cancer and other chronic diseases. More particularly, the invention relates to aromatic guanylhydrazone (more properly termed amidinohydrazone) compositions and their use to inhibit the uptake of arginine by macrophages and/or its conversion to urea. These compositions and methods are also useful in preventing the generation of nitric oxide (NO) by cells, and so to prevent NO-mediated inflammation and other responses in persons in need of same. In another embodiment, the compounds can be used to inhibit arginine uptake in arginine-dependent tumors and infections.
这项发明涉及新的方法和组合物,可用于预防和改善癌症和其他慢性疾病相关的营养不良和身体消瘦的临床综合征——消耗症。更具体地说,该发明涉及芳香基
胍基
脲(更准确地称为
胍基
脲)组合物及其用于抑制巨噬细胞对精
氨酸的摄取和/或其转化为
尿素的作用。这些组合物和方法也可用于预防细胞产生
一氧化氮(NO),从而预防需要相同反应的人体内的NO介导的炎症和其他反应。在另一种实施方案中,这些化合物可用于抑制精
氨酸依赖性肿瘤和感染中的精
氨酸摄取。