ABSTRACT
Objective:To establish the detection method of double-antibody sandwich ELISA about CYFRA 21-1 in human ser-um.Methods:The paired antibody were screened among four strains mAbs of CYFRA 21-1, which was marked by sodium periodate method.The detecting method of double antibody sandwich ELISA was optimizted , and evaluated by specificity , stability and sensitivi-ty.Results:The results showed that a paired of antibody , which was 2F9 as the coated antibody and 6F11 as the labeled antibody, was selected from four mAbs .It was the optimum condition of double antibody sandwich ELISA that the coating antigen concentration of 2F9 was 0.50 μg/ml, while the labeled antibody of 6F11 was diluted 6 000 times.The linear range of standard curve was 0.7-25 ng/ml with r2 =0.990 8, while the limit of detection was 0.666 8 ng/ml, the recovery rate was 98.14%.The cross-reactions with the oth-er analogues in serum were less than 0.1%.The coefficient of variation in group (n=10) was 6.8%, whereas coefficient of variation among group(n=5) was 11.4%.The correlation compared with other foreign ELISA kit was 91.42%.Conclusion:In brief, we suc-cessfully established the method of double antibody sandwich ELISA detecting CYFRA 21-1 level in human serum , laying the foundation for the production of CYFRA21-1 ELISA kit.
ABSTRACT
Objective To explore the correlation between hyperuricaemia and blood pressure, and blood lipid and glucose. Methods By using simple cluster sampling, 2 branch units from PetroChina Changqing Oilfield Company were selected, and all the 720 subjects with hyperuricaemia (HUA) were assigned to the HUA group; another 620 participants with normal uric acid (UA) level into the normal group. The correlation between blood uric acid and blood pressure,and blood lipid and glucose was assessed by Logistic regression. Results The odds ratio (OR) of those who had 1,2 or 3 abnormal status of hypertension,hyperlipidemia and impaired fasting glucose in the HUA group were much higher than the normal group (OR values were 4. 036,2. 562, and 4. 174, respectively). Logistic regression showed that male, systolic blood pressure ( SBP), GLU, total cholesterol ( TC), triglyceride ( TG), low-density lipoprotein cholesterol (LDL-C) were risk factors of H UA ( OR values were 7. 736,2. 309,1.721,2. 761 and 1. 411,respectively) ,while high-density lipoprotein cholesterol (HDL-C, OR = 0. 211 ) was a protective factor of HUA. Conclusions Gender,blood pressure and blood lipid may have correlation with blood UA. Multiple risk factors should be considered to improve the effectiveness of health education and health promotion.
ABSTRACT
The formation of malignant ascites is concerned with non-obstructive factors including immunity regulator(IL-2,TNF,IFN-?)and factors of inducing blood vessel penetrability(VEGF,MMP) besides obstructive factors. Intraperitoneal chemotherapy makes drug directly act on peritoneum and arrives at the aim of controlling and treating malignant ascites.