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Objective To investigate the changes and clinical correlation of IL-4 in patients with HBV infection.Methods Sixty cases with chronic asymptomatic HBV carriers,60 cases with chronic hepatitis B,60 cases with liver cirrhosis,60 cases with hepato-cellular carcinoma and 50 healthy controls were collected for serum.ELISA was used for detection of cytokine IL-4 levels;The a-mount of HBV DNA was measured by fluorescence quantitative PCR;Liver function was tested by automatic biochemical analyzer. Results Compared with the healthy controls[(1.64±0.17)ng/mL],IL-4 levels of patients with CHB,LC and HCC were signifi-cantly increased[(4.18±0.48),(4.71±0.42),(3.62±0.31)ng/mL,P <0.05].LC group have the highest IL-4 levels,while ASC was the lowest.Compared with the ASC group,IL-4 levels of patients with CHB,LC and HCC were significantly increased(P <0.05).Compared with the HCC group,IL-4 levels of patients with LC were significantly increased(P <0.05).IL-4 level was posi-tively correlated with TBIL levels in LC patients(r=0.529,P <0.01),while the IL-4 level was positively correlated with ALT and TBIL level in HCC patients(r=0.263,0.323,P <0.05).Conclusion IL-4 may play an important role in chronic HBV infection, the levels of IL-4 can be used as an important indicator to assess the severity of chronic hepatitis B.
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Objective To investigate the correlations on hepatitis B virus (HBV) preS1‐antigen (pre‐S1Ag) with HBV‐DNA , HBV markers(HBV M) and liver function in the patients with hepatitis B .Methods The markers ,preS1‐Ag ,HBV‐DNA and liver function were determined by CLIA and PCR in 905 patients with hepatitis B (HBV infection group ) and 100 healthy persons (healthy control group) .Results Among 905 samples ,the positive rates of preS1‐Ag and HBV DNA were 68 .51% (620/905) and 67 .96% (615/905) ,there was no statistically significant difference between them (χ2 =30 .064 ,P>0 .05);the positive rates of pre‐S1Ag in 570 patients with HBeAg positive were 85 .08% (485/570) ,which was significantly higher than 40 .30% (135/335) in 335 patients with HBeAg negative ,the difference was statistically significant (χ2 =108 .881 ,P<0 .01) .The abnormal rates of ALT and AST in the Pre‐S1 Ag positive and negative groups were 53 .22% ,25 .96% and 51 .29% ,32 .98% ,respectively ,the differences be‐tween them were statistically significant (χ2ALT =53 .148 ,P<0 .001 ,χ2AST =66 .635 ,P<0 .001) .Conclusion Pre‐S1Ag is a reliable index of the HBV infection and duplication and is highly correlated with HBV‐DNA positive ,which is important supplement and strengthening and can provide more timely and reliable experiment basis for guiding the clinical treatment .
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Objective To investigate the value and clinical significance of CD4+CD25+ regulatory T cells (Treg) ,inteleukin‐18 , interferon‐γand transforming growth factor‐βin patients with hepatitis B virus (HBV) infection .Methods A total of 175 patients with HBV infection were divided into chronic type B hepatitis (CHB) group and chronic asympotomatic HBV carrier (ASC) group , which were further divided into hepatitis B e antigen (HBeAg) positive and negative groups .CD4+ CD25+ Treg ,cytokines levels and liver function were measured .Healthy subjects were enrolled into control group .Results Proportion of CD4+CD25+ Treg were without significant difference among healthy controls ,HBeAg(+ ) and HBeAg(-) ASC groups ,and HBeAg(+ ) and HBeAg(-) CHB groups (P>0 .05) .Compared with control group ,cytokines levels were significant higer in CHB and ASC group (P<0 .05) . CD4+CD25+ Treg level was significant positive correlation to alanine aminotransferase and ratio of aspartate aminotransferase to plateles in HBeAg(+ )ASC group (P<0 .05) .Conclusion CD4+CD25 + Treg and related cytokines could play important roles in the course of CHB ,while CD4+CD25+ Treg expressing might be correlated with inflammatory degree of hepatitis .
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Objective To investigate the relationship between HBV DNA load with the serological markers(HB-M)HBsAg, HBeAg,HBeAb,HBcAb in the persons infected by chronic hepatitis B virus (HBV)in Lanzhou.Methods The real-time fluores-cent quantitative PCR was used to detect the HBV DNA load and the double antibody sandwich chemiluminesent immunoassay was used to measure the serum HBsAg,HbeAg,HbeAb and HbcAb levels in 724 cases of HBVinfection.Results The HBsAg level was positively correlated with the HBV DNA load in chronic HBV infection in Lanzhou area(r=0.342,P <0.05),there was an ob-vious positive correlation between HBeAg and HBV DNA load(r=0.463,P <0.05),the HBeAb level and HBV DNA load had the negative correlation (r=-0.227,P =0.001),the HBcAb level and HBV DNA load had no significantly correlation (r=-0.062, P =0.366).Conclusion There is obvious positive correlation between HBV DNA load with HBsAg,HBeAg in chronic HBV infec-tion in Lanzhou area,which indicating that the observation by combining HBsAg and HBeAg with HBV DNA can judge the infec-tious degree of the patients more accurately.
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OBJECTIVE To investigate the major pathogenic bacteria and drug resistance of hospital infection in pediatrics unit,and to provide laboratory evidence for clinical diagnosis and treatment.METHODS Pathogenic bacteria were isolated from patients who suffered from hospital infection in pediatrics unit from 2004 to 2006.the method was taken to carry out the sensitive test and bacteria identification by VITEK32,Streptococcus pneumoniae,Moraxella catarrhalis and Haemophylus influenzae were assayed with French Bio-Merieux API System ATB STREP5 and ATB HAEMO,respectively.RESULTS Totally isolated strains were 489.Of them,108 strains of coagulase negative Staphylococcus(CONS),being 22.1%.58 strains were S.haemolyticus.The isolated rate of CONS was 53.7%.The drug test for meticillin-resistant coagulase negative Staphylococcus(MRCNS) showed multiple drug-resistance.The detection rate of the ESBLs from the Escherichia coli and the Klebsiella pneumoniae was 18.9% and 12.5%,respectively.CONCLUSIONS MRCNS are the major pathogens in pediatrics unit.The detectable rate of MRCNS is high.Glycopeptide antibiotics are the first-choice drugs for MRCNS infection.
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OBJECTIVE To evaluate the pathogens in department of orthopedics infection and the bacterial resistance to antibiotics,and to provide reference of clinical antibiotic therapy.METHODS A total of 603 pathogenic strains isolated from patients with bone and joint purulent infection,from Apr 2004 to Apr 2007 were retrospectively analyzed with the results of their bacterial cultures and antibiotics sensitivity tests by VITEK32,a part of antibiotics sensitivity tests by K-B and Etest.RESULTS The inspection rate of Pseudomonas aeruginosa,Staphylococcus aureus,S.haemolyticus,S.epidermidis,and Acinetobacter baumannii were 17.08%,14.76%,12.94%,12.27% and 9.65%,respectively.Meticillin-resistant S.aureus(MRSA)was higher than 60.00%,pathogen rate of Gram-positive cocci,Gram-negative bacteria,and Candida were 47.76%,43.78%,and 7.96%,respectively.Staphylococcus were major pathogens of bone and joint purulent infection,multidrug-resistant Staphylococcus infections have increased.CONCLUSIONS Bone and joint purulent infection is mainly caused by Staphylococcus which resist to many antibiotics,A.baumannii and P.aeruginosa are also often found these years.Routine blood culture before using of antibiotics should be taken.The sensitive antibiotics are selected and adjusted according to the results of blood culture and sensitivity test.