Objective To observe the effect of pidotimod to enhance the immune response and protective immunity induced by the epitope vaccines from new gene wx2b4a of Toxoplasma gondii in mice.Methods Mice were divided into four groups,each group was inoculated intramuscularly three times with pcDNA3-W2b4a,pcDNA3-W2b4a and pidotimod,pcDNA3,natural saline (NS),respectively.The induced immune responses were tested by ELISA detecting IgG,and flow cytometry sorting the subsets of T lymphocyte.All mice were challenged with highly virulent RH tachyzoites to observe the survival time.Results After the immunization,the level of IgG in sera of mice inoculated with wx2b4a and pidotimod,wx2b4a were significantly higher than those control group(all P＜0.05).CD4+ and CD8+T cell counts in immunized groups were higher than those control group(P＜0.05).After the immunization,CD4+T cell counts and CD4+/CD8+T cell proportion in wx2b4a and pidotimod groups were higher than those in wx2b4a group (all P＜0.05).After challenged with highly virulent tachyzoites,the mean survival time of wx2b4a and pidotimod groups was significantly longer than control group and wx2b4a group (all P＜0.05).Conclusion Pidotimod can increase protective immunity of epitope vaccines from new gene wx2b4a of Toxoplasma gondii in mice.

Objective To explore the application effect of weekly maintenance together for detection equipment by persons specifically designated.Methods Firstly carries on the preliminary training and the organization of the examination for all junior technicians and nurses,the appropriate persons were selected.Secondly,the recruited personnel were trained and as-sessed by the manufacturer or equipment engineers.After obtaining a certificate of conformity,weekly centralized mainte-nance for detection equipment officially began to implement in August 2014.Maintenance time was designated as every Wednesday afternoon or evening.Two months after the operation the test carried out by the head of clinical laboratory and the equipment department engineers in strict accordance with the week maintenance prcedures for each instrument and each item,and on-site questions.Other personnel also participated in the test as a control group.After half a year,the question-naire was sent to all the inspectors,and the satisfaction rate about the maintenance of the instrument was counted.Results Seven personnel selected to participate in the weekly maintenance,includings two senior technicians,three technicians and two nurses.Experimental personnel BC5390,UF-1000i,BH5100Plus and BH2100,C8000 and i2000,ADVIA2400 average score was significantly higher than the control group.Before and after the programme,the average number of failures of the instrument was reduced from 22 to 8 times and the average satisfaction rate of the inspection personnel was 83.0%±5.0%and 98.0%±2.0% respectively,and the difference was statistically significant.Conclusion Weekly centralized maintenance for detection equipment by persons specifically designated can truly implement instrument maintenance requirements,and at the same time with the implementation of the program,the failure times is greatly reduced,which is beneficial to improve the quality of inspection and to avoid the medical risks caused by TAT.

This paper discussed the existing problems of Information System ( LIS) from six aspects, inclu-ding:the security and the expansion of the function, protection of patients′privacy, the establishment of emergency response mechanisms, authenticity and accuracy of data and the risks for auto-approval rules, etc.The authors also analysed the necessity of its rectification from the perspective of ethics, proposed improvement programme and suggestions: strengthening the safety management systems and data, ensuring special check the confidentiality of the project, protect the patient′s privacy;setting up emergency mechanism;hospital based on the actual workload and resources to determine the LIS function module; regularly checking the test data, to avoid occupational inju-ries;continuously improving the rigour of automatic approval rules.

Objective To explore the possibility of guiding clinical fast diagnosis and rational use of drugs by rapid detection of plasma digoxin concentration(PDC) with i4000.Methods The plasma samples of 132 patients were collected and digoxin concentration was detected by i4000,and the relationship between PDC and clinical effect was analyzed.Then,the regularities of distribution of digoxin concentration also analyzed according to the age and PDC.The patients whose PDC beyond the effective concentration 0.8 ～ 2.0 μg/L,were treated with adjusted dose respectively according to the circumstance and continuous monitoring of PDC.Results In 132 cases,PDC of 106 patients within the therapeutic dose,accounted for 80.30％,and the total effective rate was 86.36％ after treatment.The effective rates in ＜0.8μg/L group,0.8 ～2.0μg/L group and ＞2.0μg/L group were 10.91％,95.28％and 75.00％,respectively.After dosage adjusted for 1 1 cases with PDC ＜ 0.8μg/L and 4 cases ＞ 2.0μg/L,the PDC returned to the effective concentration.The PDC in over 60 years old group was higher than that in 50 ～ 60 years old group.Poisoning symptoms occurred in 7 cases,and symptoms disappeared through adjustment dosages.Conclusion The PDC detection by Abbott i4000 is rapid and easy to operate,and the result is accurate and reliable.

Serum amyloid A(SAA) is a novel marker widely used in the acute infection disease, especially viral infection. SAA has shown a cerntain value in assisting the clinical diagnosis, discrimination of severity and monitoring of progress and outcome of COVID-19. This paper introduces the application of SAA structural, function andits dynamic detection in the diagnosis of COVID-19, and the significance of combined detection with COVID-19 antibodies, nucleic acid and other diagnostic indicators.

Autologous ozonized blood transfusion(AOBT) is a therapy of re-transfusion of 100-200 mL of autologous blood after shaking and agitation with appropriate amount of oxygen-ozone in vitro. The oxidation of blood through the strong oxidation of ozone can enhance the non-specific immune response of the body, regulate the internal environment and promote health. This therapy has been increasingly applied in clinical practice, while no unified standard for the operation process in terms of ozone concentration, treatment frequency and treatment course had been established. This operation process of AOBT is primarily explored in order to standardize the operation process and ensure its safety and efficacy.