纤维坏死素(Fn)是一种糖蛋白,分布于结缔组织,基底膜及多种细胞表面,也存在于血液中,其生理机能尚不完全明确,但参与机体防御机制这一点是肯定的。癌、肾病综合征、SLE、阻塞住黄疸等时血浆Fn增高,肝硬变失代偿期、败 Fibroblast necrosis factor (Fn) is a glycoprotein distributed in the connective tissue, basement membrane and a variety of cell surface, also exists in the blood, its physiological function is not yet fully clear, but participation in the body defense mechanism this point is affirmative. Cancer, nephrotic syndrome, SLE, jaundice obstruction increased plasma Fn, cirrhosis decompensation, defeat