1.Expression of TAT-Smad7-HA fusion protein and validation of its transduction activity
Journal of Third Military Medical University 2003;0(23):-
Objective To construct,express,purify,identify and label the TAT-Smad7-HA fusion protein (protein transduction domain of trans-activator,human Smad7 and hyaluronic acid) and to validate its transduction activity in the cultured human primary keloid fibroblast cells. Methods TAT-PTD,Smad7 and HA fragments were sequentially inserted into pET32a(+) to construct the pTAT-Smad7-HA prokaryotic expression vector. After the expression of target fusion protein was induced to express by IPTG,affinity purification,Western blot analysis,enterokinase cleavage,target protein capture and FITC labeling were subsequently performed by turns to obtain the FITC-TAT-Smad7-HA fusion protein and to further observe its transduction activity in the human primary KFB cells in vitro. Results The prokaryotic expression vector for the TAT-Smad7-HA fusion protein,named as pTAT-Smad7-HA was successfully constructed,and the target fusion protein was efficiently induced to express,covering more than 25% of the total bacterial proteins,successfully purified with a purity of more than 95% purity,desalted by desalting column,identified by Western blotting,thioredoxin removed and FITC labeled. Finally,a fusion protein of FITC-TAT-Smad7-HA with the approximately molecular weight of 50?103 was successfully purified and its high transduction activity in KFB cells was validated. Conclusion The highly-purified FITC-TAT-Smad7-HA fusion protein and the validation of its high transduction activity in KFB cells have provided an experimental foundation for further studies on the role the human Smad7 protein playing in the TGF-?/Smads signal transduction pathway and further elucidation of the pathogenesis of keloid formation.
2.Study of hand hygiene requirements in the operation skill of physician qualification examination
Chinese Journal of Medical Education Research 2014;(9):967-969
Objective To explore the difference of hand hygiene requirement between guide-line of skill practice for national examinations of doctors' qualification(clinical practitioners) and stan-dard for hand hygiene for healthcare workers in health care settings for some sterile techniques. Methods Eight sterile techniques in guideline of skill practice for national examinations of doctors' qualification(clinical practitioners) such as changing a dress and taking out stitches, aspiration, ure-thral catheterization, arteriovenous puncture, thoracentesis, abdominal puncture, lumbar puncture and bone marrow puncture were chosen and the results were compared with standard for hand hygiene for healthcare workers in health care settings. Results Three of eight sterile technics mentioned hand-washing, six of eight mentioned wearing sterile gloves, and zero of eight mentioned antiseptic han-drubbing; however, only one of six (16.67%) before wearing sterile gloves mentioned handwashing. Conclusion The requests of hand hygiene between guideline of skill practice for national examina-tions of doctors' qualification (clinical practitioners) and standard for hand hygiene for healthcare workers in healthcare settings are not concordant , which from the root leads to the inconsistence of doctors' learning at different stages of education and training . It is suggested that the examination organization departments should refer to the relevant provisions of the state in the preparation of guidelines, and regulate medical practice behavior with consistent standards.
3.Effect of environment variable on the anxiety of military people at high altitude
Chinese Journal of Behavioral Medicine and Brain Science 2008;17(10):924-925
Objective To understand the effect of environment variables on anxiety in the soldiers at high altitude.Methods A total of 267 soldiers at high altitude were investigated with the self-rating anxiety scale,the environmental scale and Eysenck personality questionnaire.Results Compared with norm(29.78±0.46),the soldiers at high altitude had higher sore of anxiety(37.22±6.64;t=17.92,P<0.01).One-way ANOVA and independent.samples t test showed that the anxiety(38.37±5.93,36.65±6.951,36.75±6.88)of military people at high altitude had not evidently difference in different altitude(≥3587.5m,3587.5~2767.9m,≤2767.9m).Parental culture.length of military service(F=3.25,P<0.05)and neuroticism(R=0.52,P<0.01)had evidently effect on the depression of soldiers.Conclusion The occurrence of anxiety in the soldiers at high altitude has a higher level.Parental culture.1ength of military service and neuroticism had predictive value for depression.
4.Centralized monitoring and analysis on 400 cases of Danhong injection treatments
International Journal of Traditional Chinese Medicine 2011;33(8):701-703
Objective To re-evaluate Danhong injection and analyze the rationality of medication. Methods 400 patients treated with Danhong injection in Taiyuan Centre Hospital from February to August, 2010 were monitored centralizedly.Their medication and the results were analyzed and evaluated. Results The improvement rate was 95.1%, and the incidence of adverse reaction was 0.5%. The problems showed in the use of the drug were non-indication medication,inappropriate selection of solvent, and unsuitable compatibility with other drugs. Conclusion Danhong injection has the advantages of perfect effects and safe. The mode of medication monitoring by clinical pharmacist is worth promoting.
5.Briefly on "Harmony between Man and Nature" of Song-Ming Period
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(12):-
The view of "Harmony between Man and Nature" in Song-Ming period,taking "the same rule of man and nature" as mode,"clearing the rules according examining the things" as means,made the doctors of vital gate school in traditional Chinese medicine set up a life pattern of "taiji(vital gate)-yin and yang-five elements(zang-fu viscera)",so as to explore the origin of life and mystery.The study on the characteristics of view of "Unity of Heaven and Man" in different historical stages is conducive to grasp the track and skeleton of the formation of traditional Chinese medical theories,lay the foundation for the further development of traditional Chinese medicine.
6.Cathepsin S and atherosclerosis
Min ZHANG ; Yamin LIU ; Bo ZHANG
International Journal of Cerebrovascular Diseases 2013;(1):55-58
Cathepsin S is one of the cathepsins that distributes generally at lysosomes of histiocyte in humans body.It has variety of actions when it is unbalancing,including promote inflammation,atherosclerosis,diabetes and obesity,etc.Studies in recent years have demonstrated that there are certain correlations of adiponectin with vascular risk factor and cerebrovascular disease.
7.Determination of 3’-Chloromethylacetophenone in Workplace Air by Gas Chromatography
Bo LIU ; Xuemei ZHANG ; Huamei YANG
Journal of Environment and Health 1993;0(01):-
Objective To establish a method for determination of 3’-chloromethylacetophenone in the air of ketoprofen workplaces. Methods The 3’-chloromethylacetophenone was sampled using activated carbon tube and then desorbed by ethyl acetate. All the components were determined by gas chromatograph with FID after complete separation with FFAP capillary column. Results This method presented a linear relation within 5-1 000 ?g/ml, r value was 0.999 2. The detection limit was 1.67 mg/m3. Desorption efficiencies were 92.2%-101.5%. The break through volume of 100 mg of activated carbon was 5.0 mg. Conclusions The present method is feasible for determination of 3’-chloromethylacetophenone in workplace air.
8.In vitro evaluation of Ti-24Nb-4Zr-7.9Sn coated with microarc-oxidation film in cultured osteoblast cells
Zhengming LIU ; Bo GAO ; Lizhao ZHANG
Journal of Practical Stomatology 2001;0(03):-
Objective: To study the attachment, proliferation and ALP activity of osteoblasts on Ti-24Nb-4Zr-7.9Sn(TNZS) alloy surface treated by microarc oxidation (MAO). Methods: The surface roughness and energy of TNZS before and after MAO treated was examined by physicochemical methods, and pure titanium used as control. The primary cultured osteoblasts separated from calvarium of fetal rats were cultured and the third passage osteoblasts were seeded on 3 different surfaces of Ti, TNZS, MAO-TNZS discs. Biological assays were performed by MTT method. All data were statistically analyzed. Results: The surface energy and roughness of MAO-TNZS was higher than that of other groups; during the initial period of the cell adhesion on the materials, there were no differences among the three teams. But after 2 h, the cells adhesions on the surface of Mao-TNZS were higher than that on smooth surface and Ti (P
9.Determination of Volatile Halohydrocarbons in Drinking Water by Headspace Gas Chromatography
Xia CHEN ; Bo LIU ; Xuemei ZHANG
Journal of Environment and Health 2007;0(09):-
Objective To establish a method to determine 7 kinds of volatile halohydrocarbons in drinking water with headspace gas chromatography. Methods The water samples were heated by water bath,the water head space gas was injected into gas chromatography,separated by DB-624 capillary column and then detected by ECD detector. Results Under the optimal experimental conditions,the methods had a wide linear range,the lowest determination limits was 0.001-0.05 ?g/L,the relative standard deviation was 3.6%-8.9%,the rate of recovery was 84%-104%,the linear range of determination was 0.01-50 ?g/L. Conclusion This method is sensitive,simple,accuracy and is appllicable for determination of 7 kinds of volatile halohydrocarbons in drinking water.
10.Effect of Omethoate on the Activity of Characteristic Enzymes in the Mouse Testicles and the Antagonism of Teapolyphenol
Bo ZHANG ; Guangcui XU ; Feng LIU
Journal of Environment and Health 1992;0(05):-
Objective To study the effect of omethoate on the activity of characteristic enzymes in mouse testicles and the antagonism of teapolyphenol. Methods 80 Kunming male mice were divided into 8 groups, omethoate was given by gavage: the control group given 0.9% NaCl solution, a group given teapolyphenol of 180 mg/kg bw, three groups given omethoate of 1, 2 and 4 mg/kg bw respectively, three groups given teapolyphenol of 180 mg/kg bw and two hours later followed by omethoate of 1, 2 and 4 mg/kg bw respectively. The gavages were conducted for 6 consecutive days. The activities of the characteristic enzymes (AKP, ACP, LDH and LDH-x) in mouse testicles were measured by biochemistry method and variance analysis was done with the SPSS 11.0 software. Results As omethoate dose increased, the body weight and the testicle weight decreased obviously, the activities of AKP, ACP, LDH in mouse testicles significantly increased compared with the control. Given teapolyphenol 2 hours before given omethoate, the significant changes as above did not emerged. Conclusion Teapolyphenol has an antagonism against the adverse effects of omethoate on the activity of characteristic enzymes in mouse testicles.