Accidents, Occupational ; prevention & control ; China ; Humans ; Occupational Diseases ; prevention & control ; Occupational Exposure ; prevention & control ; Occupational Health Services ; organization & administration ; Safety

Objective To study the effects of PNESF at different voltages on the life spans of ascites tumor bearing mice.Methods Forty ascites tumor bearing mice were divided into 5 groups and exposed to PNESF at 0,10,17,23 and 30 kV,respectively,for 30 minutes daily on 4 successive days.All of the animals then received routine care until death.Their eating habits,body weights and life spans were observed.A straight line fitting method was used for statistical analysis. Results The body weights of the mice exposed to 17 kV and 23 kV PNESF increased quickly during the four days of PNESF exposure.The weight gain in all groups declined after PNESF exposure was stopped.Thereafter the body weights of the mice exposed to the 17 kV PNESF increased more slowly than those in the control group.The mice exposed to the 23 kV PNESF gained weight more quickly than other groups.The mice exposed to the 17 kV PNESF lived the longest,demonstrating a lengthening of life of 25.5%compared with the control group.Conclusion Exposure to a PNESF of appropriate intensity might significantly increase the life span of ascites tumor bearing mice.

OBJECTIVE:To prepare compound tretinoin cream No I,No II and observe their effects on chloasma.METHODS:The cream was prepared by taking tretinoin,kojoic acid and allantoin as main components and adding base material.The tretinoin was encapsulated with ?-cyclodextrin.RESULTS & CONCLUSION:The prescription of compound tretinoin cream is rational,preparation technic being stable and therapeutic effect on chloasma is satisfactory.

Adolescent ; Adult ; China ; epidemiology ; Female ; Hepatitis B ; epidemiology ; prevention & control ; Hepatitis B Vaccines ; immunology ; Humans ; Incidence ; Male ; Vaccination

Animals ; Carcinoma, Neuroendocrine ; metabolism ; pathology ; physiopathology ; Carcinoma, Small Cell ; metabolism ; pathology ; physiopathology ; Cell Differentiation ; Chromogranin A ; metabolism ; Humans ; Male ; Neuroendocrine Cells ; metabolism ; pathology ; Prostatic Neoplasms ; metabolism ; pathology ; physiopathology

Objective To construct the recombinant adeno-associated virus vector(rAAV) expressing the human tissue kallikrein(HK)gene and to detect the expression of interested gene in human umbilical vein endothelial cells(HUVEC)which were infected with different titers of rAAV. Methods The HK gene was cloned into the pAAV-MCS and co-transfected AAV-293 cells with other two plasmids(the pAAV-RC,and pHelper)by lipofectamine.The recombinant AAV(rAAV HK)particles was harvested and its viral titer was measured.HUVEC were infected with different titers of rAAV-HK particles.Seventy-two hours later,the expression of the interested gene was detected by RT-PCR and ELISA.Results The AAV expression system of human tissue kallikrein gene was successfully constructed.The viral titer of recombinant AAV reached 6.2?10~7 particles/ml. When compared with the control group,the transcription of HK gene in the group which was infected with rAAV-HK increased significantly[(0.59?0.12)vs(0.26?0.05)(P＜0.05)],and the expression of HK in the HUVEC was three times more than that in the control[(120.1?40.9)vs (30.8?12.8)](P＜0.001).The transcription of eNOSmRNA in the infected HUVEC was higher than that of the control[(1.19?0.28)vs(0.66?0.11)](P＜0.05).The transcription of caspase-3 mRNA was lower than that of the control[(0.30?0.25)vs(0.67?0.27)](P＜0.05).And there was no obvious variation happened in the transcription of VEGF,ET-1,TR-B,bradykinin B1 receptor and Bradykinin B2 receptor.Conclusions When co-transfected AAV-293 cells with three plasmids (pAAV-HK,pAAV-RC,pHelper),the HK gene expression is significantly and stably increased. Introducing HK gene into HUVEC can improve endothelial transfection efficiency.

For the efficient interception performance of the membrane, some biological aspect in membrane bioreactor are different from those in the activated sludge process. The physiological and biochemical characteristics of microbial community, activated sludge, and microbial products in the membrane bioreactor are illustrated in this paper.

OBJECTIVETo observe clinical therapeutic effect of point-through-point acupuncture on strephenopodia after apoplexy.

METHODSNinety-six cases of strephenopodia after apoplexy were divided into a treatment group (n=50) treated with point-through-point acupuncture and a control group (n=46) treated with normal acupuncture. Their clinical therapeutic effects and motor functions of lower limbs were investigated.

RESULTSBoth the methods could restore foot functional activities of various directions in the patient of strephenopodia after apoplexy (P < 0.01, P < 0.05), and the therapeutic effect of the treatment group was more obvious (P < 0.05).

CONCLUSIONThe point-through-point acupuncture has obvious therapeutic effect on foot functional activities of various directions in the patient of strephenopodia after apoplexy.

Department of General Internal Medicine (DGIM) in the Peking Union Medical College (PUMC) Hospital is the first academic general internal medicine division in teaching hospitals in China. We attempted to construct DGIM teaching base in 2005, and the teaching reform was conducted in a part of the students. Primary assessment was based on examinations and questionnaires. The results show that the students could not only master the basic medical knowledge, but also improve overall capability. We conclude that DGIM in teaching hospital would become an important teaching base in China.

According to the principle of evidence-based medicine (EBM), Chinese medical literatures based descriptive statistical analysis of common Chinese medical syndrome types were performed. By data extraction, standardization, and frequency calculation of disease names and syndrome types from 286 literatures in line with the inclusion criteria, the frequencies of diseases and syndromes were obtained to analyze common syndrome types in clinical practice, to analyze the distribution features of disease related syndromes and syndrome related diseases, to analyze the distribution of basic Chinese medical syndrome types in clinical common diseases as a whole, thus providing reference for clinical and basic researches.
Evidence-Based Medicine ; Humans ; Medicine, Chinese Traditional