Objective To explore the effectiveness of short-term integrated intervention to reduce discrimination against people living with HIV/AIDS(PLWHA)among medical students.Methods A quasi-experimental survey was conducted.Two medical schools in Beijing,one as intervention group and the other as control group were selected by convenience sampling,from which 123 undergraduate students or interns of medical and nursing specialties were recruited,62 in the intervention group and 61 in the control group.The intervention group was provided with 13 hour long antidiscrimination intervention by increasing HIV/AIDS related knowledge,sympathy and skill in dealing with people living with HIV/AIDS,while the control group was deprived of any intervention.The attitude of the students in the 2 groups were assessed by questionnaire survey in 5 time points after the intervention.Results Compared with the control group,at 4 time points after the intervention students in the intervention group had less discrimination against PLWHA in general;and significantly less discrimination in dealing with them as patients(P

As an efficient gene transfer vehicle lentiviral vector has been widely used in therapy research. Comparing with other retrovirus vectors, lentiviral vectors have the unique ablility of transfecting nondividing cells and terminal differentiated cells. In addition, lentiviral vectors can accommodate two or more promoters and can carry larger foreign gene insertions. Now the new generation of lentiviral vectors encoding transcriptional control sequence provides effective means for the regulation of foreign gene expression. The development of lentiviral vectors and its application in the gene therapy field were summarized.

Objective:To observe the living cells on the surface of intraocular lenses and to compare the cellular numbers and morphology of prestaining to that of poststaining.Methods:Twenty adult pigment rabbit eyes were given posterior chamber intraocular lens implantation.Lenses were extracted and put into 1640 cell cultural liquid immediately on the 1 st,3 rd,7 th,14 th and 28 th day respectively after operatrion.The samples were observed under inverted phase contrast microscope subsequently.Results:We found cells deposited on the surface of lenses from 1 st to 28 th day after operation.These cells contracted and lost three-demensional appearance while its number was less than that of prestaining obviously.Conclusion:A part of cells remove from the surface of lenses during staining;however,we could count the number but could not affirm cellular types which would make error in cellular classification and counting.The fact suggests that we should discover new accurate and reliable methods to avoid mistakes during experiment.

The efficacy of colorectal cancer treatment is not very satisfactory.Conventional morphologic imagings are limited in the diagnosis and in the applications of multimodality treatment for colorectal cancer.18 F-fluorodeoxyglucose PET-CT can play a pivotal role in detecting metabolism changes and in the localization of lesions concurrently.It is valuable in the assessment of responses to therapy,prediction of prognosis and selecting modality management and monitoring postoperative recurrence.The right-moment and proper application of PET-CT can increase the therapeutic efficacy of colorectal cancer.

Objective To understand the total suspended particulates(TSP)in ambient air and their characteristics on metallic elements in Xi an.Methods 96air samples were collected from the industrial area,industry-traffic mixed area,heavy traffic area and control area in Xi an during the heating season and unheating season,2001.The concentra-tions of TSP in ambient air and the contents of Pb,Mn,Cr,Ni,Cd in inorganic extracts of TSP were determined.Re -sults The concentration of TSP in ambient air(0.5865mg /m 3 )during heating season was significantly higher than that(0.3535mg /m 3 )during unheating season(P

Objective To observe the anti-tumor effect of ethaselen on transplanted liver cancer(H22)and Lewis lung cancer mice.Methods The transplanted liver cancer(H22)and Lewis lung cancer mice models were established.Each genus consisted of 60 mice,which were divided into control,CTX,and three ethaselen dose groups,respectively,with 12 mice in each.Intraperitoneal injection(ip.)of three dosages was performed once a day through the abdominal wall separately,from the second to the eighth day after cancer was transplanted.On the eleventh day,six mice in each group were killed to calculate the tumor inhibition ratio and observe the cell cycle by flow cytometry,and the others were observed for the life extension ratio.Results When ethaselen was given at the dosage of 25,12.5 and 6.3 mg/kg,the tumor inhibition ratio was 52.5%,43.6% and 30.2%,and the life extension ratio was 56.6%,38.7% and 14.2% in the transplanted liver cancer(H22)mice,respectively.The tumor inhibition ratio was 43.8%,29.6% and 18.9%,and the life extension ratio was 47.3%,17.9% and 6.3% in the transplanted Lewis lung cancer mice,respectively.Compared with that of the control,the apoptosis ratio was obviously increased in each group,and there was obviously induced S phase arrest in 25.0 mg/kg(P

OBJECTIVE: To study the drug resistance of baumanii so as to provide references for rational use of antibiotics in the clinic. METHODS: The susceptibility test results of 270 strains of baumanii isolated from clinical samples in our hospital during the period of 2001-2004 were analyzed statistically. RESULTS: The isolating rate of baumnii stood at 16.6% , which had no drug resistance strains to piperacillin/tazobactam; its drug resistance rates to lmipenem and ampicillin/sulbactam stood at 16.3% and 22.6%, respectively; its drug resistance rates to amoxicillin/ clavulanic acid stood at 33.3%; which had higher drug resistance rates to the other antibacterials, particularly to cephalosporins. CONCLUSIONS: To reinforce the monitoring on the drug resistance of baumanii and to standardize the application of antibacterials are helpful for the maintaining of antibacterial activity of sensitive antibacterials.

Aged ; Ear, Middle ; Eustachian Tube ; Female ; Foreign Bodies ; Humans

Objective To investigate the development of rehabilitation medicine, the knowledge, ability and quality requirements of stu-dents in different professional positions, and the demand for rehabilitation industry personnel in Hunan, China, and to discuss the strategies for improving the quality of vocational education. Methods 87 directors of personnel management or rehabilitation department in all levels of hospitals and 100 rehabilitation therapists were included from May to Semptember 2014. The rehabilitation medical service, education background of employees, professional positions, and the demand for rehabilitation knowledge, ability, and industry personnel were sur-veyed. Results and Conclusion Rehabilitation medical service was not sufficiently carried out for insufficient number of employees, unbal-ance structure and other deficiencies. Rehabilitation personnel training schools and enterprises need to strengthen the depth of integration, and improve the professional quality and clinical ability.

Objective:To investigate the influence of type A behavior in the occurrence and development of chromic periodontitis and compare the differences among people with different behavior types in the occurrence and development of chronic periodontitis, and to explore the influence of psychological factors in the process of periodontitis.Methods:According the same standard,132 patients with periodontitis were selected as periodontitis group,and 126 patients without periodontitis were used as control group.OralSurveys Basic Methods proposed by WHO in 1987 and ReferenceStandard of Diagnosis and Treatment of Periodontitis made by AAP in 2000 were used to dignose the periodontitis.All subjects finished type A behavior and SCL-90 questionnaire (ZHANG Boyuan 1983,revision in 1985 ), their scores were recorded and the results were analyzed by t test. Results:The proportion of type A behavior in periodontits group (68.94%)was higher than that in control group (27.78%) (P<0.05)compared with type M and type B behavior.The scores of hostility (1.54±0.38),anxiety (1.47± 0.39),depression (1.41 ± 0.37),interpersonal sensitivity (1.23 ± 0.39),compulsive (1.72 ± 0.46),and somatizition (1.47 ± 0.38)were significantly higher than those in control group (1.32 ± 0.30, 1.29 ± 0.24, 1.25±0.23,1.04± 0.17,1.41 ± 0.35,1.25 ± 0.24).The calculus index (CI)of the people with type A behavior was higher than those of the people with other types of behavior (P<0.05).Conclusion:The people with tyep A behawior is easier to get periodontitis than other people.