Objective To investigate the different ability to produce H_(2)O_(2+) of the vaginal lactobacilli and their potential antagonism toward E.coli in ivtro.Then to select the potential lactobacilli strain to treat the female urogenital infection.Method To detect production of H_(2)O_(2) by measuring the blue matter in water solution with absorbtion spectrophotometry.The lactobacillus and E.coli were cultured together in solid culture medium,followed by the measurement of inhibition zone around the lactobacilli after 24 hour.Results We selected 4 strains of lactobacilli from vagina.L.acidophilus1 and L.paracasei3 are the stronger to produce H_(2)O_(2).The largest diameter of the ring of inhibition is shown around the lactobacilli acidophilus 1.Conclusion The lactobacilli acidophilus 1 and lactobacilli crispatus are the most potential strains as antagonist to E.coli and their antagonism depend not only on lacid or H_(2)O_(2).

Polo-like kinase 1 (PLK1) is a highly conserved serine/threonine protein kinase that has attracted research attention be-cause it plays a critical role in mitosis regulation. PLK1 is overexpressed in 80%of human tumors, which indicates a poor prognosis in most tumors. PLK1 is one of the most promising targets for antitumor therapy because it is upregulated in castrate-resistant prostate can-cer (CRPC). This review focused on the basic structure and function of PLK1, the relationship between PLK1 and CRPC occurrence and progression, and CRPC treatment by inhibiting PLK1. This study provides a theoretical basis for the targeted molecular therapy of CRPC.

To investigate the psychological difference in abdominal aortic aneurysm patients before and after operation and its influence on life quality, 24 patients who can understand and complete the questionnaire were enrolled in the study, the inquiry was performed after admission and discharge with the standard SCL 90 table. The results showed that the general conditions, depression, anxiety, compulsive symptoms and fear of the patients had marked differences before and after operation. It is concluded that operation of abdominal aortic aneurysm can not only prevent the rupture of aneurysm but also relieve the patients′ psychological pressuer and improve their life quality.

Objective To observe the changes of cerebral CT and auditory event related potentials (ERP, P300) for finding the effective method for the comprehensive evaluation of the patients with Alzheimer's disease. Methods Cerebral CT, P300, and Mini Mental State Examination (MMSE) were employed to assess 30 patients with Alzheimer's disease. Results Latency and amplitude of wave of P300 in patients were prolonged and decreased, respectively. Cerebral CT found an obvious atrophy in the frontal and temporal lobes of cerebra. These changes were obviously correlated with the severity of dementia. Conclusion Using cerebral CT, P300, and MMSE can offer morphometric, functional and psychological information which is helpful for precise assessment of patients with Alzheimer's disease.

Objective To observe the changes in help T cell 1/2 cytokines and transcription factors in murine cytomegalovirus (MCMV) infected newborn mice and to determine the effectiveness of intervention with thymopentin.Methods One hundred and twenty newborn BALB/c mice were randomized into a blank group,model group and thymopentin group,with 40 mice in each group.Mice in the model and thymopentin group received an intraperitoneal injection of MCMV suspension within 4-6 hours after birth at the dosage of 20 μ L to and tissue culture infections dose of 10431 U/0.1 ml,establish a systemic infection model,and the same volume of normal saline was injected into mice in the control group.Mice in the thymopentin group also received thymopentin 0.3 mg/(kg · d).On Day 3,5,7,10 and 14,8 mice in each group were sacrificed and their splenic tissues were harvested.Interferon (IFN) γ and interleukin (IL)-10 expression in the supernatant of a splenic lymphocyte culture was assessed by enzyme-linked immunosorbent assay.T-bet/GATA-3 mRNA in splenic tissues were analyzed using reverse transcription-polymerase chain reaction.One way ANOVA,including LSD and Dunnett T3 methods,was used for statistical analysis.Results (1) IFN-γ expression in the model and thymopentin groups peaked on Day 3,and was higher than that in the control group [(280.73 ± 14.88),(286.03 ± 15.44) and (149.42±5.43) pg/ml,respectively,F=183.532,P=0.000].Expression in the thymopentin group decreased after Day 3,and increased by Day 7.At Day 14,the IFN-γ expression level in the thymopentin group was higher than that in the control and model groups [(252.33±8.33),(149.07±7.05) and (148.57±4.53) pg/ml,respectively,F=385.487,P=0.000].(2) IL-10 expression in the model group gradually increased.By Day 14,the expression became obviously higher than that in the control and thymopentin groups [(71.19± 1.50),(36.67 ± 2.55) and (40.01 ± 1.28) pg/ml,respectively,F=523.670,P=0.000].IL-10 expression in the thymopentin group increased after Day 3 and decreased by Day 7.On Day 14,the expression in the thymopentin group was lower than that in the model group,but higher than that in the control group.(3) T-bet mRNA expression was obviously increased in the model and thymopentin groups.On Day 3,the expression was higher than that in the control group (relative value of gray-scale:0.74±0.02,0.71 ±0.04 and 0.30±0.01,respectively,F=741.630,P=0.000).By Day 3,the expression in the thymopentin group decreased,and gradually recovered on Day 5,and on Day 14 it was higher than that in the control and model groups (relative value of gray-scale:0.45 ± 0.01,0.30±0.01 and 0.30±0.01,respectively,F=257.571,P=0.000).(4) GATA-3 mRNA expression in the model and thymopentin groups increased on Day 3,and was higher than that in the control group (relative value of gray scale:0.48±0.02,0.53±0.01 and 0.33±0.01,respectively,F=345.167,P=0.000).On Day 14,the expression in the model group was higher than that in the thymopentin group,which was higher than that in the control group (relative value of gray-scale:0.99 ± 0.02,0.55 ± 0.02 and 0.34 ± 0.01,respectively,F=1 767.505,P=0.000).Conclusions A Th1/Th2 shift may be induced in MCMV infected neonatal mice,which manifests as a state of predominant Th2 response.Thymopentin can ameliorate this situation.

Chimeric antigen receptor-transduced-T (CAR-T) cells shows strong cytotoxicity to the tumor with specific antigen by CTL effects and cytokines releasing without MHC-restriction.As multiple clinical trials from cancer centers around the West countries reported recent years,anti-CD19-CAR T cells can not only induce complete remission of B-cell malignancies resistant,but also eliminate the minimal residual disease (MRD) at the molecular level.It is believed that the obstacles from bench to clinic will be cleared and CAR will become one of the main cancer therapies with breakthroughs in comprehensive treatment of tumors.

Objective To summarize the basic process to create epidemiological surveillance system. Methods First, make use of the system science, information science, control science and related disciplines as theory, use deductive reasoning to get the basic process of creating epidemiological surveillance system. Then, choose 50 existing epidemiological surveillance system to study, choose the characteristics of epidemiological surveillance system as the fundaction, use inductive reasoning to complete the basic process. Results The basic process of creating the epidemiological surveillance system include: system analysis, set up the logic model of the system, system design, system implementation, system evaluation, system improving. Conclusions Epidemiological surveillance system are indispensable aspects, they should be well integrated in order to ensure the effectiveness of created epidemiological surveillance system.

OBJECTIVE:To investigate the effects of tramadol combined with midazolam on prognosis of patients underwent tumor resection in gastrointestinal surgery department. METHODS:In retrospective study,200 tumor patients of gastrointestinal sur-gery department were divided into observation group(100 cases)and control group(100 cases). Observation group was given Tra-madol hydrochloride tablet 100 mg,3 times a day+Midazolam injection 30 mg,added into 0.9% Sodium chloride injection 60 mL,via intravenous pump,2.5 mL/h,for consecutive 24 h,for consecutive 3 d. Control group was given Tramadol hydrochloride injection 100 mg,intramuscular injection,3 times a day,for 3 d. The hospitalization duration,postoperative ambulation time, sleep quality score,pain degree score,the occurrence of postoperative hypostatic pneumonia,and the incidence of adverse reactions in 2 groups were observed. RESULTS:The hospitalization duration and postoperative ambulation time of observation group were significantly shorter than those of control group;the sleep quality score of observation groups was significantly higher than that of control group;the severity of pain,the incidence of hypostatic pneumonia were significantly lower than control group,with statisti-cal significance(P<0.05). There was no statistical significance in the incidence of ADR between 2 groups(P>0.05). CONCLU-SIONS:Midazolam combined with tramadol can significantly reduce the postoperative pain of tumor patients in gastrointestinal tu-mor surgery department,shorten hospitalization time and postoperative ambulation time,improve the sleep quality of patients and reduce the incidence of hypostatic pneumonia with good safety.