ABSTRACT
Objective To test and verify the performance of analyzing IgG using nephelometry assay,and discuss reasonable model of performance verification of this system.Methods According to related documents and standards,this study verified the precision,accuracy,assay measurement range(AMR)and reference interval.Results The within-run precision in low level was 2.24%,while it was 2.73% in high level.The overall precision in low level was 2.25%,while it was 2.68%.The relative bias between the results of analyzing the calibrator with a different lot from that used for calibrating and its concen-tration printed was 5.18%.The AMR of the original dilution was 2.44~33.5 g/L.The results of reference interval verifica-tion identified with what the manufactur declares.Conclusion The major performances of analyzing IgG by this system are identifies with the manufactur declares.The reference interval offered by the manufactur is acceptable.The verification and calculation methods are simple and convenient,with strong operability.
ABSTRACT
Objective To investigate the Human papillomavirus(HPV)infection in different age groups of women in Shenyang, and explore its correlation with cervical biopsy diagnosis.Methods 7 311 women aged 13-85 did HPV test and thin-cytologic test (TCT)in the hospital.Some of them had biopsy detection under electronic colposcopy,and the pathological diagnosis was the golden standard for the diagnosis of cervical lesions.SPSS18.0 statistical software was used for all statistical analysis.Results The infection rate of <30 years old women was significantly higher than that of 30 - <40,40 - <50,≥50 years old women (P <0.05).The most prevalent high-risk HPV genotype in Shenyang were subtype 16,52,58,53,33,31 and 18,and the most prevalent low-risk HPV subtypes were 81,11 and 6.The former 4 subtypes of high-risk HPV infection accounted for 67.3% of all high-risk infection.As to the 4 subtypes with higher infection rate,the infection rate of ≥40 years old women was higher than that of <40 years old(χ2 =20.29,P =0.00).The top two low-risk HPV subtypes accounted for 74.8% of the infections.The mean age of the ICC patients were 48.3,which was statistically different from the other groups(P <0.05).Cervical lesions occured mostly in 40-49 years old,which accounted for 37.1% and was higher than the other agees(P <0.01).HPV16 infection rate increased with the severity of cervical lesions.Conclusion HPV DNA genotyping is a necessary methord for cervical cancer screen,an effective com-plement for precancerous lesions diagnosis which was missed in cytology test,and also an indispensable test for CIN treatment and follow-up after operation.
ABSTRACT
Objective To investigate the effect of HCV RNA on virological and immunological response to highly active antiretroviral therapy (HAART),liver function and blood lipid levels in HIV/HCV co-infected patients.Methods In a cohort study,275 HIV/HCV co-infected former blood donors receiving HAART were followed up every six month in Henan province in China.HCV RNA,HIV RNA,CD+4 T cell counts,indexes of liver function and lipid levels were periodically tested.The differences of HIV viral load suppression,immunological response,liver injury and blood lipid levels between HCV RNA positive group and negative group were compared by x2 test and two independent-samples tests.Result There was no significant difference of HIV viral load suppression between HCV RNA positive group and HCV RNA negative group six-month treatment (45.6% vs.38.5% ,X2=1.150,P>0.05) and CD+4 T cell counts before (286 cells/μ1 vs.209 cells/μ1,Z=0.734,P=0.463)and after 6-month (310 cells/μ1 vs.362 cells/μl,Z=0.562,P=0.574) ,12-month(378 cells/μ1 vs.289 cells/μ1,Z=1.091,P=0.275),18-month(363 cells/μ1 vs.288 cells/μl,Z=1.435,P=0.151) ,24-month(413 cells/μ1 vs.348 cells/μ1,Z=0.939,P=0.348) HAART.The mean levels of serum ALT (55.0 U/L vs.29.5 U/L,Z=6.789,P<0.01),AST(46.0 U/L vs.33.0 U/L,Z=4.890,P<0.01)、TBIL(9.3 mmol/L vs.7.2 mmol/L,Z=3.748,P<0.01)were significantly higher in HCV RNA positive group than that in HCV RNA negative group.HCV RNA was the independent variables associated with liver injury after HAART (aOR=3.8,P<0.01).The serum triglyceride level was higher in HCV RNA positive group than that in HCV RNA negative group(1.2 mmoL/L vs.1.4 mmol/L,Z=1.936,P=0.043) .The serum HDL level was higher in HCV RNA positive group than that in HCV RNA negative group (1.5 mmol/L vs.1.3 mmol/L,Z=2.251,P=0.024).Conclusions HCV RNA does not affect HIV virological responses to HAART and CD+4 T recovery.HCV RNA is an independent risk factor associated with liver injury in HIV/HCV co-infected patients receiving HAART,but appears to provide significant protection against HAART-ieduced hyperlipidemia.