Objective: Our purpose was to study the predictive factors of interferon(IFN) therapeutic effectiveness. Methods:Genotypes of HCV, HCV RNA quantities, β2 microglobulin, 2′- 5′oligoadenylate synthetase, and peripheral blood lymohocyte subgroup were detected by using specific primer PCR assay, energy transference technique of signal primer, sheet chromatography, radioimmunoassay, and APAAP immunoenzyme bridge technique respectively in 20 blood samples of patients with chronic hepatitis C. Results:(1)The patients who had lower level of HCV RNA before treatment and had continuing decreased HCV RNA level after treatment had good response to IFN treatment in follow-up survey. (2)The patients with HCV-Ⅲ type had complete response much more than those with HCV-Ⅱ type (P＜0.05).(3)The patients with lower level of 2′- 5′oligoadenylate synthetase before treatment might have good response to IFN treatment. (4) There was no significant change in β2 microglobulin level before and after treatment and in different response groups before treatment.(5) The CD+3, CD+4, and CD+4/CD+8 in peripheral blood increased after treatment. The patients in complete response group had higher level CD+3, CD+4, and CD+4/CD+8 than those in part response and non-response groups, but there was no significance in statisitcs. Conclusion:The HCV RNA quantities, HCV genotypes, 2′- 5′oligoadenylate synthetase level before treatment were predictive factors of IFN therapeutic effectiveness. The changes of HCV RNA level in treatment and follow-up survey had important significance in therapeutic evaluation, β2 microglobulin level, and lymphocyte subgroup before treatment were not used as predictive factors for IFN therapeutic effectiveness.

Objective To evaluate the roles of food allergen detection in patients with chronic urticaria.Methods Food allergen-specific IgE and IgG were detected in 502 patients with chronic urticaria and 100 normal human controls.Double-blind,placebo-controlled food challenge (DBPCFC) test was performed in patients who were proved to be positive or negative for food-specific IgG or IgE.Results Food-specific IgE was detected in 37.45％ (188/502) of the patients,with cashew,peanuts and soybeans as the most common allergens.The detection rate of food-specific IgG was 72.11％ (361/502),with the major allergens being milk,egg,shrimp and crab.DBPCFC revealed false positivity and negativity in the detection of food-specific IgG and IgE.Conclusions Clinicians should pay attention to food allergen detection in the treatment of chronic urticaria,especially in the treatment of allergy mediated by IgG antibodies.

We expressed multi-epitope chimeric protein of CARDS toxin protein of Mycoplasma pneumonia (Mp) in prokaryotic cells,and purified and investigated its immunoreactivity.A recombinant multi-epitope chimeric gene including ten critical epitopes was connected by linker and cloned into prokaryotic expression vector pET-28a(+),and transformed into E.coli BL21(DE3) cells for expression under induction of IPTG.The antigenicity of expressed recombinant protein was identified with 6 × His monoclonal antibody and human positive serum by Western blot.The recombinant expression vector pET-CARDS was constructed and the about 30 kDa recombinant chimeric protein expressed in BL21(DE3) successfully.Western blot analysis showed that it can react respectively with 6 × His monoclonal antibodies and human positive serum.This study showed that the chimeric CARDS protein has an obvious immunoreactivity and a potential to be a new antigen for the diagnosis of Mp infection.

Objective To investigate the effect of continuous health education on the control of glucose and the changes of behavior. Methods One hundred and twenty-six newly diagnosed type 2 diabetic patients were randomly divided into control group and observation group,each group included 63 patients. The control group just received health education in hospitalization period,and the observation group received continuous health education both in and after hospitalization. The control of glucose and the changes of behavior were evaluated 3 months and 1 year later. Results After 3 months and 1 year treatment,the FPG,2hPG and HbA1c were significantly decreased compared to pre-treatment both in control group and observation group(P<0. 05). The FPG,2hPG and HbA1c were significantly decreased in the ob-servation group compared to the control groups(P<0. 05). The behaviors contained that mastery of diabetic knowledge,control of food in-take,persist in physical exercise, rational administration, self-monitoring of blood glucose and regular reexamination were significantly im-proved both in control group and observation group compared to pre-treatment (P<0. 05),and the behaviors were significantly improved in the observation group compared to the control group (P<0. 05). Conclusion Compared to control group,observation group had more ad-vantages in the control of glucose and the changes of behavior in newly diagnosed type 2 diabetic patients.

OBJECTIVE To evaluate the risk factors of nosocomial infection(NI),then establish the evaluation system for risk factors of NI in ICU.METHODS A total of 1897 ICU patients were enrolled in our study.The risk factors of NI were classified and quantified,then investigated the relativity of the risk factors and NI.RESULTS NI correlated with APACHEⅡscore,serum prealbumin level,blood products uese,incision of trachea,mechanical ventilation,central vein cannula and enteral nutrition.CONCLUSIONS The risk factors of NI evaluatied in ICU can to be used to lay the foundation for the model of NI early warning.

OBJECTIVE To study the risk factors of hospital acquired urinary system infection in neurology ICU(NICU) and emergency ICU(EICU).METHODS The general character,score of APACHE Ⅱ and the time length of urethral catheterization of the 502 NICU and EICU patients were enrolled in our study.Then the relativity of the risk factors and hospital acquired urinary system infection were investigated.RESULTS Urethral catheterization increased the chances of hospital acquired urinary system infection and there were more chances with the long time.CONCLUSIONS In order to decrease the rate of hospital acquired urinary system infection we must strictly grasp the indication of urethral catheterization and pull out the urethral catheter as early as possible.

OBJECTIVE To study relativity of systemic inflammatory response syndrome(SIRS) score and nosocomial infection(NI) and outcome in ICU patients.METHODS A total of 1897 ICU patients were enrolled in our study.The SIRS within 48 hours after admission was recorded.And the prospective evaluation in NI and prognosis was made.RESULTS The nosocomial infection rate was 10.1%,and the mortality was 9.9%.With SIRS score increasing,NI and mortality rates increased as well and the tendency presented a linear correlation.CONCLUSIONS As a simple system,SIRS score can initially predict the risk of NI and outcome in ICU patients.

OBJECTIVE To estimate the prevalence of nosocomial infections(NI) of our hospital.METHODS With a method of transversal sectional investigation,choosing one day each year during from 2004 to 2006,we investigated all these days′ hospitalized patients,using the same criteria,collected the questionnaires,sorted out and anayzed the nosocomial infection cases.RESULTS Among 2738 investigated patients,the prevalence rate of nosocomial infection was 6.49%,5.70% and 4.47% respective.CONCLUSIONS The respective prevalence rate of NI are consistent with the month and the year survey results.

OBJECTIVE To focus on the diagnosis,treatment and prevention of central venous catheter(CVC)-related bloodstream infections(CRBSI)in clinical practice.METHODS The related articles within the nearest 10 years were reviewed,which published in the domestiec and foreign academic journals,at the same time,the related monitoring data of the hospital were analyzed.RESULTS Highlights on the diagnosis,treatment and prevention of CRBSI:for the patients with CVC,the possibility of the CRBSI should be considered,as soon as a high fever was found,and it could not be explained with the non-infectious causes.Infection occurring time and pathogen were different between the general catheters and the anti-infective catheters.The effect of the anti-infective catheters was limited.To pull out the catheters was one of the most effective treatment measures.CONCLUSIONS Prevention of CRBSI:the indications of CVC intubation should be undisputed.Silicone catheter should be used.When the catheter is predicted to be indwelling more than 5 days,anti-infective catheters should be chosen.To insert CVC at the subclavian vein instead of the femoral vein.To care the hub and keep the puncture point dry and do disinfection well.The health care workers should be trained.

The medical student should learn the knowledge and skill for NI control.Nosocomiology subject should be set up in higher medical education as early as possible to meet the needs of medical science development.