纤维连接蛋白（fibronectin，FN）是一种广泛存在于细胞外基质、血浆及其他体液中的高分子糖蛋白，自1948年Motrison首次发现以来，对FN蛋白水平的研究方兴未艾，并于七、八十年代达到高潮。国内外法医界已将FN蛋白水平的变化应用于生前死后伤及创伤时间推断。1983年Knornbliht Fibronectin (FN) is a kind of macromolecule glycoprotein widely existed in extracellular matrix, plasma and other body fluids. Since the first discovery by Motrison in 1948, the research of FN protein level is in the ascendant, The decade climax. The forensic community both at home and abroad have applied the change of FN protein level to predict the time of injury and wounding after their death. 1983 Knornbliht