3.Research of association between the primary progressive type of pterygium and the tear film
Jin-Kui, CHENG ; Yan-Ning, YANG
International Eye Science 2014;(9):1652-1655
To research the association between primary progressive pterygium and tear film.
●METHODS: Totally 60 cases of primary progressive pterygium from September 2012 to June 2013 in our hospital were enrolled. The pterygium eye was for observation group and the contralateral eye as the control group. The differences of eye symptoms, tear film break-up time ( BUT ), Schirmer Ⅰ test ( S Ⅰ t ), corneal fluorescein staining (FL), tear ferning test (TFT) and the conjunctival impression cytology ( ClC) were compared between two groups.
●RESULTS: The eyes in observation group had higher symptoms score, FL score, grades of conjunctival squamous metaplasia, percentage of abnormal tear ferning, but had lower BUT and density of goblet cell, the differences had statistically significance (P<0. 05); Similar S Ⅰ t results were presented in the two groups, the difference had no statistically significance (P>0. 05).
● CONCLUSlON: Primary progressive pterygium can cause a decrease in tear film stability, which in turn lead to some dry eye symptoms such as dry feeling and burning sensation, and its mechanism may be caused by multi-factors, such as density change of goblet cell and the tear fluid dynamics.
4.The Usage of Conventional Teaching Combined with PBL in Microbiology Teaching
Chun-Yan CHEN ; Xiao-Kui GUO ;
Microbiology 2008;0(09):-
PBL is a modern model of classroom teaching. We have introduced it into the teaching of Microbiology. As a result, the students’ learning abilities have been raised to a higher level, and their learning autonomy and achievement have been improved. The combination of PBL method with traditional teaching methods achieved a good effect.
6. Construction and research of interval fingerprint
Chinese Traditional and Herbal Drugs 2013;44(4):379-382
At present, fingerprint has become an effective mean recognized internationally in controlling the quality of Chinese materia medica (CMM) or natural products. In recent years, there are some exploratory studies on the fingerprint of natural product, while only the injection of CMM has taken the fingerprint as one of the quality criteria. Other fingerprint studies on natural products were all staying in the researching phase. There are many reasons for the bottleneck of natural product fingerprint research, such as the component complexity of natural product. There are always a lot of impurity peaks in the analytic result of fingerprint, while it is very difficult to dissociate these impurity peaks by forthcoming analytic methods. Therefore we propose to construct the "interval fingerprint". The studies and analyses on the construction program, approach, model, and application problem of the "interval fingerprint" have been carried out with Shen'an Granule as the example.
8.Comparative study of occupation burnout of southern and northern Xinjiang soldiers
Zongyi SU ; Kui DING ; Yan GU ; Penglin ZHAO
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(5):451-453
Objective To explore the differences of occupation burnout of the soldiers in southern and northern Xinjiang and explore its related influencing factors.Methods Using stratified randomization sampling method,500 soldiers from south and north of xinjiang military were selected and investigated by Military Job Burnout Scale and Military Social Support Rating Scale.Results ① The military of northern soldiers'accomplishment,somatization,interpersonal relationship,social support score (5.57±3.29,5.53± 3.35,3.38±2.75,9.62± 10.15) was significantly higher than the soldiers who live in south of xinjiang (5.26±3.25,5.13±3.45,2.94±2.39,6.25±5.24) (t=2.091,-2.539,-4.011,7.227,P<0.05).②Every dimensions of occupation bumout has significant correlation with social support,age,length of military service,marriage,level,working hours,income and job satisfaction (r=0.124,0.220,0.275,0.198,0.192,0.206,0.188,-0.383,P<0.05).The total score of Military Job Bumout Scale has positive correlation with social support and level (r=0.122、0.410,P<0.01).③Social support,working hours,job satisfaction and length of military service has forecast effect on the northern military occupation bumout.Social support and level can predict the southern military occupation burnout.Conclusion It is no obviously differences on the general occupational between the north and South Xinjiang Military.Social support is closely related to the job burnout of South and the North military.
9.Study on the effects of heat and ultraviolet fight radiation on hepatitis C virus JFH-1 strain inactivation
Hongshuo SONG ; Shuang SHI ; Ling YAN ; Kui LI ; Hui ZHUANG
Chinese Journal of Microbiology and Immunology 2009;29(5):438-442
Objective To investigate the inactivating effect of heat and ultraviolet(UV) light on HCV JFH-1 strain using the cell culture system. Methods The HCV JFH-1 virus stock, with an initial titer of 2.5 × 104 FFU/ml, was exposed in 56℃ water bath or to UV light for varying durations of time for explo-ring their inactivating effects on the virus. The kinetics of virus titer reduction was determined by an indirect immuno-fluorescence assay (IFA). If the cells infected with the exposed virus stock were IFA negative after three blind passages, the virus stock was considered to be inactivated completely. Results After incubation of the HCV JFH-1 virus stock (2.5 × 104 FFU/ml)in 56℃ water bath for 10 min, 20 min and 30 min, the virus titers were reduced to 1.6 × 103 FFU/ml, 3.1 × 102 FFU/ml and 3.3 × 10 FFU/ml, respectively. The exposure of the virus stock to UV light (wavelength 253.7 nm, intensity ≥60 μW/cm2, 30 cm below the UV lamp) for 15 s, 30 s and 45 s resulted in virus fiter reduction to 1.0 × 103 FFU/ml, 1.1 × 102 FFU/ml and 2.7 × 10 FFU/ml, respectively. After 40 min incubation of the virus stock at 56℃, or 1 min exposure to UV light (wavelength 253.7 nm, intensity ≥60 μW/cm2) the virus infectious titer was reduced below the detection limit of IFA, and the IFA was still negative even after three blind passages, indicating that the virus was inactivated completely. Conclusion HCV is sensitive to heat and UV light treatment. For HCV JFH-1 virus stock containing 2.5 × 104 FFU/ml virus, heat treatment at 56℃ for 40 min, or UV light expo-sure at an intensity of ≥60 μW/cm2 for 1 min, resulting in complete virus inactivation.