Novel iodinated arylaliphatic triglyceride analogs as radiologic agents are liver and hepatocyte site-specific. The triglyceride backbone structure is preferably 1,3-disubstituted or 1,2,3-trisubstituted with, in some embodiments, a 3-substituted-2,4,6-triiodophenyl aliphatic chain wherein the chain has a structure similar to naturally occuring fatty acids. In another embodiment, a monoiodophenyl aliphatic chain is utilized. Any position remaining on the triglyceride backbone is substituted with a saturated or unsaturated aliphatic hydrocarbon chain of the type found in naturally occurring fatty acids. The triglyceride analogs can be radioiodinated. In a preferred embodiment, a lipid emulsion is provided as the carrier vehicle.
新型
碘代芳基
脂肪酸三
酯类似物作为放射性成像剂,具有肝脏和肝细胞特异性。三酯骨架结构最好是1,3-二取代或1,2,3-三取代的,在某些实施例中,使用3-取代-2,4,6-三
碘苯基脂肪链,其中该链的结构类似于天然存在的
脂肪酸。在另一种实施例中,使用单
碘苯基脂肪链。三酯骨架上剩余的任何位置都用天然存在的
脂肪酸中发现的饱和或不饱和脂肪链取代。三
酯类似物可以进行放射性
碘标记。在一种优选实施例中,提供脂质乳剂作为载体。