Objective To explore the value of detecting serum cytokeratin 19 fragmen 21-1 (CYFRA21-1) and squamous cell carcinoma antigen (SCCAg) in the diagnosis of patients with nasopharyngeal carcinoma.Methods 79 patients with nasopharyngeal carcinoma from October 2013 to October 2015 as case group and 145 patients with nasopharyngeal chronic inflammation as control group were collected.The CYFRA21-1 level was detected by the electrochemical luminescence immunoassay and the SCCAg level was detected by the enzymoimmunoassay.Comparisons of diagnostic value of CYFRA21-1 and SCCAg to nasopharyngeal carcinoma were conducted according to pathological diagnosis.Results The serum CYFRA21-1 and SCCAg levels in case group were (12.37±1.65) g/L and (1.65±0.37) ng/ml,and the control group were (4.26±1.99) g/L and (1.22±0.45) ng/ml,with statistically significant differences (t =8.093,P =0.002;t =4.287,P =0.043).The sensitivity,specificity,positive predictive value,negative predictive value and accuracy of CYFRA21-1 combined with SCCAg in the diagnosis of nasopharyngeal carcinoma were higher than those of CYFRA21-1 and SCCAg respectively,and the difference all were statistically significant (all P ＜ 0.05).Conclusion Detecting serum CYFRA21-1 combined with SCCAg in the diagnosis of nasopharyngeal carcinoma has high sensitivity and good specificity,which can significantly improve the diagnostic accuracy.

Objective Amniotic membrane as the carrier to culture the vascular endothelial cells was investigated in this study in order to explore whether the corneal endothelial cells superseded by the vascular endothelial cells is feasible on the account of directing a kind of the original method to handle the bullous keratopathy.Methods The vascular endothelial cells adhering to the sphagitides lumen of the experimental rabbits were digested and gained by means of the perfusion method with 0.25%tripsin plus 0.02%EDTA.Fresh amniotic membrane without the amniotic epithelial cells was cut into the square tissue about 1.5 cm?1.5 cm and spread evenly in the 24-well culture dish.Primary cultured cells were subcultured on the amniotic membrane.We would not transplant the vascular endothelial cells feeding on the amniotic membrane until cells is full of the whole amniotic membrane surface.One to two months after the operation,the change of corneal diaphaneity was observed.Results About 12 days since the cell transplantation was performed,the corneal transparency alteration between the experimental groups and the control one is different.The corneal buttons in the experimental group show the severe edema and opacity,and the anterior chamber couldn't be seen unclearly.But,10 days after the operation,the corneal oedema which begins to extenuate was judged through the indicatrix that the corneal edema in the experimental group has been recovering slowly,among which the anterior chamber tissue of 7 animals was visible through the implant.The corneal edema in the control groups intensified evidently,even,the part of these appeared the ulcerous necrosis as result of the corneal severely edema.There is the existence of difference between two groups(P