Comparative analysis between HP-083/4 and rational used instrument on results of six items / 国际检验医学杂志

Objective To compare the performance of HP-083/4 and rational used instrument on detecting six items.Methods The rational instruments were used as contrast instrument,HP-083/4 was the verified instrument.A total of 100 blood specimens and 100 urine specimens were collected,and the levels of antistreptolysin O(ASO),hypersensitive C reactive protein (hsCRP),D-di-mer(D-D),glycosylated hemoglobin(HbA1c),rheumatoid factor(RF)and urine microalbumin(mAlb)were detected.The regression equation and correlation coefficient(r)of the two methods were calculated,and the Kappa values(κ)were analyzed to evaluate the performance of HP-083/4.Results There was a good linear correlation (r >0.950)for the two methods in detecting the serum ASO,hsCRP,D-D,HbA1c,RF and mAlb,r were 0.991,0.995,0.970,0.957,0.980 and 0.967 respectively.Besides,they had good concordance(κ>0.6),theκ values were 0.830,0.957,0.601,0.720,0.920 and 0.694 respectively.Conclusion HP-083/4 is effec-tive in detecting ASO,hsCRP,D-D,HbA1c,RF and mAlb,which should be suitable for clinical application.

Study on the antigenicity of Streptococcus pneumonia polysaccharide, its derivatives and conjugates by three immunological assays / 中华微生物学和免疫学杂志

Objective To monitor and analyze the antigenicity of Streptococcus pneumonia polysac-charide, its derivatives and conjugates by three immunological assays .Methods Inhibition ELISA and rate nephelometry(RN) were established for this study.Antigenicity of serotype 23F pneumococcal conjugates and their intermediates were analyzed by double immunodiffusion assay , inhibition ELISA and RN .The re-sults derived from three assays were comparatively analyzed to evaluate the changes of antigenicity during the preparing process of serotype 23F conjugate.Results Double immunodiffusion assay, inhibition ELISA and RN were all applicable to antigenicity analysis during the process of conjugate preparation .Inhibition ELISA could quantitatively detect a slight difference of polysaccharide antigenicity during the preparing process . Conclusion The antigenicity of polysaccharide during the preparing process of pneumococcal conjugates could be analytically monitored by using three immunological assays .This study provided evidence for suc-cessfully using immunological assays as the quality control means during the preparing process of pneumococ -cal conjugates .