Using the indirect immunofluorescence method performed with the HEP-2 cell as a subs- trate, we could detect the ANA level so that the rate of accurate diagnosis in SLE was increased from 85%, to 90%. In PSS the increase wasfrom 56% to 70%.

• 应用HEP-2细胞为底物进行间接免疫荧光法测定抗核抗体可使它在系统性红斑狼疮及系统性硬化的阳性率分别由85%25、56%25提高到90.；5%25、70%25。