Objecfive To investigate the prevalence of Ureaplasma urealyticum(UU)and Mycoplasma hominis(MH)infections in urogenital tract and their sensitivities to drugs in Qinhuangdao area from 2006 to 2007.Methods UU and MH were detected by Mycoplasma IST kits in urine samples from 3062 patients suspected as urogenital tract infection and the sensitivity tests for 8 antimicrobial agents were performed.Results Mycolasmas were detected in 1262 patients from 3062 patients suspected as urogenital tract infection,in which 1037 were of UU infection,41 were of MH infection and 184 were of UU+MH infection.Both strains were sensitive to josamycin,doxycycline and tetracycline,but were less sensitive to ofloxacin and ciprofloxacin.Conclusions Drug resistance is increasing for Mycoplasma and sensitivity test is important in treatment of urogenital tract infection by Mycoplasma.

Objective To analyse preliminarily the role of amelanotic melanocutes (AMMC) and SCF/c-kit signal pathway in the pathogenesis of vitiligo. Methods Three antibodies such as HMB-45, NKl/beteb and c-kit were used to stain sections from scalps from vitiligo patients and the healthy controls. Results There were no HMB-45 positive cells in outer root sheath(ORS) of follicle. NKI/beteb positive cells were small and located in groups at the middle and lower of outer root sheath with their retraction of the dendrites. They only expressed premelanosomal antigens but not melanosomal antigen such as HMB-45. There were no significant difference of AMMC in quantities between vitiligo patients and normal controls (P>0. 05). The expression of c-kit receptors on AMMC in follicle of depigment-ed scalps from vitiligo patients was lower than that in normal contols (P<0. 05). Conclusion Abnormal c-kit expression in AMMC in the follicle of depigmented scalps may play an important role in the pathogenesis of vitiligo.

Objective:To investigate the effects of dendritic cells(DCs)in pathogenesis of aplastic anemia,especially its roles in T cell abnormal activation.Methods:Direct immunofluorescence assays and flow cytometry(FCM)were used to determined proportion and kinds of DCs in bone marrow sample of patients with AA.The DCs were got from standard method by culturing mononuclear cells isolated from peripheral blood of normal person in medium with recombinant human granulocyte macrophage colony stimulating factor(rhGM-CSF)and interleukin 4(IL-4)in vitro.The phenotype of DCs were determined by FCM.After pulsed with purified cord blood CD34+ cells and stimulated with recombinant human CD40 ligand(rhCD40L),the ability of those cultured CDs to activate and promote auto T lymphocytes to proliferation was tested.The changes of TCR V? gene repertorie of those T cells were also investigated by real time quantitative PCR(RQ-PCR).Results:The CD1a+CD11c+ and CD11c+CD83+ double positive cells increased in bone marrow of patients of AA,especially the proportion of CD11c+CD83+ cells increased significantly in those patients.After primed with CD34+ cells,DCs induced from peripheral monocytes could activate T lymphocytes and promote T cells to proliferation.The restricted usage of TCR V? genes was confirmed by RQ-PCR in those activated T cells by DC as those in AA patients.Conclusion:DCs,especially with phenotype of CD11c+CD83+,may have great impact on oligoclonal expansion of lymphocytes in patients AA,but the antigen which recognized by auto T cells and stimulated it to proliferation are still needed to further investigation.

Objective To perform comparative study on database performance before and after upgrading hardware & software of database. Methods The comparison was carried out from the aspects of hardware expansibility, processing ability, system stability and database performance. Results The reasons for the change of performance and the change law were analyzed. Conclusion After upgrading, the system performance is enhanced greatly.

Clinical Information System (CIS) is an important part of informatized hospital. Along with the developing of hospital informatization construction, CIS is paid more and more attention to. This paper introduces the functions of CIS and discusses the service flow design, data share, standardization and quality control of CIS.

Objective:To study and analyze the application effect of intervention plan based on unplanned readmission risk model (LACE) in the rehabilitation of patients with acute myocardial infarction (AMI) complicated with cardiac shock (CS) after percutaneous coronary intervention (PCI).Methods:Ninety-three patients with AMI complicated with CS who received PCI in Tianjin Union Medical Center from January 2019 to December 2020 were enrolled. The patients were divided into LACE intervention group ( n = 46) and routine intervention group ( n = 47) according to the different nursing intervention methods. The patients in the routine intervention group received routine interventions, including drug care, diet care, psychological care, health education and telephone follow-up, while those in the LACE intervention group were assessed for the risk of LACE, and then intervention measures were formulated according to the score of LACE index, including strengthening risk awareness, life behavior, daily life ability, self-care ability, health recovery and health needs. The follow-up period in both groups was 3 months. The changes of cardiac function, incidence of adverse cardiac events, readmission rate, self-management ability after intervention and quality of life level before and after intervention were compared between the two groups. Results:There was no significant difference in cardiac function or quality of life before intervention between the two groups. After intervention for 3 months, the cardiac function and quality of life in the two groups were improved as compared with those before intervention. The left ventricular ejection fraction (LVEF) in the LACE intervention group was significantly higher than that in the routine intervention group (0.533±0.076 vs. 0.492±0.072, P < 0.05), the left ventricular end diastolic diameter (LVEDD) was significantly lower than that in the routine intervention group (mm: 47.09±7.01 vs. 53.23±7.15, P < 0.01), and the World Health Organization Quality of Life-brief (WHOQOL-BREF) score was also significantly higher than that in the routine intervention group (66.32±6.19 vs. 55.79±7.26, P < 0.01). The scores of self-management ability in the coronary heart disease self-management scale (CSMS) after intervention in the LACE intervention group were significantly higher than those in the routine intervention group (adverse hobbies score: 17.37±3.24 vs. 14.21±2.73, symptoms score: 14.82±3.11 vs. 10.56±2.65, emotional cognition score: 16.17±2.83 vs. 12.95±2.41, first aid score: 11.85±1.94 vs. 10.62±1.56, disease knowledge score: 15.58±2.73 vs. 12.68±2.61, daily life score: 17.80±2.61 vs. 14.33±2.36, treatment compliance score: 11.47±1.84 vs. 8.56±1.23, all P < 0.01). The incidence of adverse cardiac events and readmission rate in the LACE intervention group were significantly lower than those in the routine intervention group (10.87% vs. 29.79%, 4.35% vs. 17.02%, both P < 0.05). Conclusion:The intervention plan based on LACE risk model can effectively promote postoperative rehabilitation of patients with AMI complicated with CS after PCI, and also help to improve patients' self-management ability and quality of life, which is worthy of clinical promotion and application.

The effect of cholesterol ester transfer protein(CETP) on SR-B1 mRNA expression in mouse liver was investigated.The results demonstrated that CETP transgenic mice showed lower serum total cholesterol and high density lipoprotein-cholesterol levels but higher total cholesterol and cholesterol ester content in liver when compared with wild type mice(P＜0.05).The expression of SR-B1 mRNA in liver of CETP transgenic mice was significantly lower as compared with the control group(P＜0.05).

Objective To investigate the impact of early enteral nutrition on the nutritional status and complications of patients with advanced esophageal carcinomas.Methods Sixty-five patients with advanced esophageal carcinomas were randomly divided into the enteral nutrition group group (n =33) and the control group (n =32).The two groups were given enteral nutrition support and normal nasogastric feeding diet respectively in 24-72 h after hospitalization.The two groups were tested with nutrition indicators:body Mass Index (BMI)/brachial triceps skinfold thickness/upper arm circumference measurement,fasting blood glucose/serum total protein/albumin/cholesterol/triglyceride and the liver function (alanine aminotransferase (ALT)/aspartate aminotransferase(AST)/total bilirubin (TBiL)),and were observed the incidences of complications with liver/intestinal and infection diseases.Results After one month's treatment,compared with the control group,there was significant statistical difference between the two group in patients' nutritional status (BMI index:(22.1 ±4.5) kg/m2 vs.(19.2±4.3) kg/m2; skinfold thickness:(6.2 ±0.4) mm vs.(5.1 ±0.4)mm ; upper arm circumference:(22.8 ± 3.0) cm vs.(20.4 ± 3.2) cm ; serum total protein:(49.2 ± 10.1) g/L vs.(45.1 ± 9.9) g/L; Albumin:(35.5 ± 5.8) g/L vs.(30.6 ± 6.1) g/L; Cholesterol:(5.0 ± 0.6) mmol/L)vs.(4.3 ± 0.7) mmol/L)),the liver function(ALT:(36.0 ± 4.7) U/L vs.(61.5 ± 9.9) U/L; AST:(29.6 ±6.7) U/Lvs.(88.9±10.6) U/L;TBiL:(17.7±3.8) μmol/Lvs.(31.6 ±9.4) μmol/L) (t=2.624,2.036,2.220,2.256,4.155,2.207,2.349,2.476,2.280 respectively,P ＜ 0.05 for all),and the incidence of diarrhea (12％ (4/33) vs.34％ (11/32)) and infection (15％ (5/33) vs.41％ (13/32)) (x2 =2.501,2.193 respectively;P ＜0.05).No statistical difference was observed between the two groups on the levels of serum glucose and triglycerides,and the incidences of complications like bloating/constipation/reflux (P ＞ 0.05).Conclusion The early enteral nutrition could improve the nutritional status of patients with advanced esophageal carcinomas effectively,and reduce the incidence of liver injury,diarrhea and infection.

Objective To provide the oxygen supply apparatus when the civil aviator and airforce pilot are inspected the hypoxia tolerance and altitude tolerance in the hypobaric environment.Methods Demand oxygen and contstant flow oxygen were supplied.Results The portable hypobaric oxygen supply apparatus can supply mixed oxygen below the altitude 8 000 m,and the oxygenous concentration of mixed oxygen was adjusted according to the altitude.The pure oxygen was supplied when the altitude was at 8 000～12 000 m.Conclusion The normal and emergency oxygen supply performance can fulfill the system physiological requirements.The portable hypobaric oxygen supply apparatus may be used by the persons engaging in special task on plateau also.

Objective:To analyze the awareness rate of obesity risk factors among children and adoles-cents, and to provide the basis for preventing their obesity. Methods: The students selected by using stratified cluster sampling method, were measured for the body height, weight, and waist circumference, and were surveyed for the awareness rate of obesity risk factors by using the questionnaire. The distribu-tion characteristics of awareness on obesity risk factors were analyzed. Results: The awareness rate of obesity risk factors was 74 . 1%, and there was no significant difference on the awareness rate of obesity risk factors between the males [71. 2% (247/347)] and females [77. 2% (257/333)], the abdominal obesity students [73. 5% (202/275)] and non-abdominal obesity students [74. 6% (302/405)], the overall obesity students [74. 3% (185/249)] and non-overall obesity students [74. 0% (319/431)], re-spectively. However, the awareness rate of obesity risk factors among the primary school students was 81. 9% (272/332) that was higher than that of the middle school students [66. 7% (232/348)] (P<0. 05). Compared with the primary school students, the non-awareness risk of obesity risk factors would in-crease among the middle school students (OR=2. 23, P<0. 05). Conclusion:The overall awareness rate of obesity risk factors is not high among children and adolescents, especially among middle school students.