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.

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 .

Aiming at the characteristics of biochemistry and the special advantage of flash and basing on teaching practice,we set up a set of biochemistry flash animation database,providing a series of immediate flashes and being applied to teaching practice of biochemistry,which shows the great potential of flash in improving biochemistry teaching quality.

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 .

Objective To investigate the effects of contextualized training on quality improvement of nursing in operative handover. Methods Nurses were trained in operation handover through establishment of contextualized training. Theoretical knowledge, rate of work fault and efficiency were compared after training. Extends of recognition and efficacy of contextualized training were also inquired from nurses. Results Scores of theoretical tests in every subject and total score were significantly improved after training;in addition, rate of nursing fault decreased compared with before training; respective time for entering operation room, waiting for surgery and returning to ward after surgery decreased significantly in groups (P <0. 05). Conclusions Establishment of contextualized training exhibits positive effects on decreasing nursing work fault.

Objective:To evaluate the effect of intestinal carbapenem-resistant Enterobacteriaceae (CRE) active screening combined with enhanced intervention in the prevention and control of nosocomial infection in patients admitted to the hematological ward.Methods:Patients who were admitted to the Department of Hematology in a tertiary-care general hospital from March 1, 2017 to December 31, 2019 and underwent chemotherapy or immunosuppressive therapy comprised the intervention group. They were screened for intestinal CRE at least thrice. From December 1, 2016 to February 28, 2017, patients who underwent chemotherapy or immunosuppressive therapy without active intestinal CRE screening in the Department of Hematology formed the control group. Both the patient groups were monitored for CRE infection in real time. The χ2 test was used to compare the changes in the CRE infection rate and mortality in high-risk patients before and after the active screening. Results:During the intervention period, the CRE colonization rate of patients was 16.46% (66/401) ; in terms of disease distribution, the colonization rate of acute leukemia was the highest 23.03% (26/113) . Of the 66 colonized patients, 27 (40.9%) patients were identified as positive for CRE at the first screening, 15 (22.7%) were identified at the time of the second screening, and the remaining 24 (36.4%) were identified at the third or subsequent screening; Carbapenem-resistant Klebsiella pneumoniae (CRPK) strains were dominant among the pathogens, accounting for 54.55% (36/66) . During the active screening period, the CRE infection rate (2.49%) and mortality rate (50.00%) of high-risk patients were significantly lower than those of the controls (11.30% and 69.23%, respectively) . The pathogens of 10 CRE infection patients during the intervention period were exactly the same as the previous active screening pathogens, and the coincidence rate was 100%.Conclusion:The CRE colonization rate was the highest in patients with acute leukemia who were admitted in the hematology wards. CRPK is the main pathogen of CRE colonization, infection, and death. Increasing the frequency of screening can significantly raise the positive rate of screening, Active screening can effectively reduce the incidence and subsequent mortality of CRE in high-risk patients admitted in the hematological wards. High coincidence rate between CRE screening positive pathogens and subsequent CRE infection pathogens. Intestinal CRE screening can serve as an indicator of CRE bloodstream infection in patients with hematological diseases as well as provide information for antibiotics therapy.