1.Effect of Ceftriaxone on glutamate-induced cerebral cortical neurocyte injury
Journal of Clinical Neurology 1993;0(03):-
Objective To study the effect of Ceftriaxone on glutamate-induced neurocyte injury. Methods Cultured rat cerebral cortical neurocytes were divided into Ceftriaxone (A)group, glutamate(B) group ,Ceftriaxone-pretreated (C) group and control (D) group. Observe morphous and MTT colorimetry were used to detect cytoactive. Laser scanning confocal microscope was used to measure the change of Ca2+ in rest state and after brief glutamate-induced Ca2+ loading. RT-PCR was used to determine the change of GLT1 mRNA expression.Results Compared with B group, cellular morphous was closer to normal in C group. Absorptance values of groups A,B,C,D were 0.795?0.010, 0.624?0.028, 0.738?0.021 and 0.813?0.023, respectively, which there were lower in groups B and C compared with group D, but absorptance value was higher in group C than that in group B(allP
2.Study on the clinical of treating ectopic pregnancy 125 cases with laparoscopy
Chinese Journal of Primary Medicine and Pharmacy 2006;0(04):-
Objective To analyze the clinical applicative value of treating ectopic pregnancy with laparoscopy.Methods The clinical datas of 125 cases ectopic pregnancy were treated by operational laparoscopy.Extruding gestational sac(GS) in fimbria,taking embryo with opening fallopian tube,salpingectomy with using laparosope,and comparing with abdominal salpingectomy.Results The mean operating time was (93.3?10.6)min,the mean duration of hospitalization after operating was (4.3?1.0)d,laparosopic surgery had an obvious difference with abdominal salpingectomy(P
3.The Priming Effects of Knowledge Representation of Chinese- English Bilinguals
Weizhi LIU ; Guanghui DENG ; Xiaoxia CHEN
Chinese Journal of Clinical Psychology 2001;0(03):-
Objective: To explore how the Chinese- English Bilinguals represent knowledge of the second language. Methods: The inter- language priming effects were investigated in two priming- category judgement tasks based individual- ly on the semantic (ExperimentⅠand ExperimentⅡ) and phonological information (ExperimentⅢ and ExperimentⅣ). Re- sults: In experimentⅠand ExperimentⅡ, no matter what the relation between the English targets and the English primes was semantic association or homophones and similar phones, the significant priming effects were obtained; However, In the experimentⅢ, when the relation between the targets and the primes was semantic association, no significant priming effect was found; In experimentⅣ, when the relation was homophones and similar phones, the significant priming effects were obtained. Conclusion: ①The second language knowledge of Chinese- English Bilinguals was represented in the semantic and phonological characters; ②The conceptual representation could be discreted with the lexical representation.
4.Preparation of Borneol-puerarin Liposomes and Study on Its Brain-targeting
Weizhi LIU ; Hankun HU ; Ping LIU ; Wei LIU ; Yan ZHENG
China Pharmacy 2015;(28):3964-3966
OBJECTIVE:To prepare borneol-puerarin liposomes,and to investigate its brain-targeting. METHODS:Film dis-persion ultrasonic method was used to prepare borneol-puerarin liposomes. The morphology of liposomes was observed by TEM;the particle size and Zeta potential were measured by laser particle size analyzer;the entrapment efficiency were measured by sepha-dex gel filtration method. Compared with Puerarin injection,brain-targeting of borneol-puerarin liposomes and puerarin liposomes via intravenous injection of mice tail was studied with relative intake rate and peak concentration ratio. RESULTS:Borneol-puerarin liposomes were spherical or quasi-circular;its mean particle size,polydispersity index and Zeta potential were 226 nm,0.263 and-21.3 mV respectively. The entrapment efficiency were(65.32±2.13)%. Compared with Puerarin injection,relative intake rate of puerarin liposome and borneol-puerarin liposome were 1.68 and 2.58,and peak concentration ratio were 1.15 and 1.42. CONCLU-SIONS:Brain-targeted borneol-puerarin liposomes are prepared successfully.
5.The rapetic analysis of 48 cases with subcutanous fistula excision to long-path low anus fistula
Guangsheng LIU ; Weizhi WANG ; Shaolei REN ; Mingliang GUI
Chinese Journal of Primary Medicine and Pharmacy 2009;16(3):408-409
Objective To investigate the clinical effects of subeutanous fistula excision for the long-path low anus fistula.Methods Operation for long-path low anus fistula,fistula length>5cm,divided the pafients into two groups.The therapeutic group:using subcutanous fistula excision;the control group:using fistula icision.Comparing the healing time,arIus malformation,recurrence rate.Results Therapeutic group 47 cases heal,the healing time was 12 days;no anus malformation;no arms ineontenience.In the control group,the healing time was 23 days;anus malformation 23 cases;anus gas incontenience 12 cases.Conclusion To use subcutanous fistula excision for the longpath low anus fistula has the advantages of short healing time,no anus malformation,less pain,and low reccurrent rate.
6.An experimental study of difference of affective priming and attentional bias in young people
Chengjie YUAN ; Kai YU ; Weizhi LIU ; Zhilei SHANG
Chinese Mental Health Journal 2015;(5):378-382
Objective:To explore whether there will be attentional bias under the condition of fear,disgust and positive emotional arousal. Methods:Totally 96 college students were selected as participants in this study,inclu-ding 60 males and 36 femalesaged 18-22 years. Affective priming videos were adopted to prime participants'emo-tion (dread,disgust,joviality),and then they named the color of the cognitive words (positive words,negative words,neutral words)as quickly and accurately as possible. Reaction time and correctness were recorded. E-prime was adopted to write the experimental program. The reaction time for neutral words was baseline. Results:The aver-age reaction time (RT)of color-naming tasks of negative words were shorter than that of neutral words after fright-ening affective priming[(648 ±118)ms vs. (743 ±124)ms,P<0. 01]. Furthermore,the average RT of color-na-ming tasks of positive words were also shorter than that of neutral after frightening affective priming[(683 ±123) ms vs. (743 ±124)ms,P<0. 05]. The average RT of color-naming tasks of negative words were shorter than that of neutral words after disgusting affective priming[(579 ±86)ms vs. (720 ±101 )ms;P<0. 01 ]. Moreover,the av-erage RT of color-naming tasks of positive words were shorter than that of neutral words after delighted affective priming[(634 ±122)ms vs. (716 ±141)ms;P<0. 01]. Furthermore,the average RT of disgusting priming group-were shorter than the frightening priming grouptowards negative information[(579 ±86)ms vs. (648 ±118)ms,P<0. 05 ]. Conclusion:It suggests that the youth perform more obvious attentional bias towards negative information after disgusting affective priming than the frightening one. Frightening affective priming could evidently induce the attentional bias on positive information.
7.The correlation among posttraumatic stress disorder,posttraumatic growth and earthquake exposure fac-tors in middle school students four years after earthquake
Jing CUI ; Guanghui DENG ; Wei DONG ; Xiao PAN ; Weizhi LIU
Chinese Journal of Behavioral Medicine and Brain Science 2014;(11):1009-1012
Objective To study the influence of exposure factors on posttraumatic stress disorder( PTSD) and Posttraumatic Growth( PTG) in middle school students in disaster area four years after the Wenchuan earth?quake . Methods 1 526 students from four schools in Worst?Hit Areas were investigated with Self?compiled Earth?quake Exposure Factors Questionnaire,Posttraumatic Growth Inventory( C?PTGI) and Impact of Event Scale( IES?R). Data were analyzed by ANOVA and multiple linear regression analysis.Results The score of IES?R had sig?nificant difference between different levels of all exposure factors(F=5.75~89.10, P<0.05) ,and students with high exposure level((26.68±14.66),(26.80±15.56),(27.83±14.62),(29.02±15.36),(27.77±15.74),(26.74± 15.63),(25.43±14.32),(29.51±14.36)) had heavier symptoms of PTSD than those with low exposure level ((22.84±13.96),(23.98±13.99),(23.63±14.21),(23.53±13.96),(23.64±13.83),(24.24±14.15),(21.27± 14.35),(17.54±13.34)). Only exposure factors of having witnessed someone injured and having close friends se?riously injured or being killed could significantly influence the score of PTGI(F=11.82, P=0.001;F=6.23, P=0.013). Regression analysis showed that five exposure factors (grade,having felt scared,having family members being killed,having close friends seriously injured or being killed,having witnessed someone injured) had signifi?cant effect on IES(ΔR 2=0.141) ,but only one factor( having witnessed someone injured) had weak effect on PTG (ΔR 2=0.007).Conclusion Exposure factors can predict posttraumatic stress symptoms in middle school students in Wenchuan four years after the earthquake,and the emotion of fear is a strongest predictor,but they can not pre?dict posttraumatic growth.
8.Optimization of the Formulation of Dimemorfan Phosphate Tablets by Orthogonal Test
Baogen ZHENG ; Weizhi LIU ; Xiaodan REN ; Qiang YAN ; Hankun HU
China Pharmacy 2016;27(7):952-954,955
OBJECTIVE:To optimize the formulation of Dimemorfan phosphate tablets. METHODS:Using 60 min dissolution rate of dimemorfan phosphate as index,L9(34) orthogonal test was used to optimize the amount of starch,microcrystalline cellu-lose,croscarmellose sodium and concentration of HPMC E5 solution. The friability,hardness,60 min dissolution rate and main component were detected. The similarity of dissolution curves of Dimemorfan phosphate tablets was compared with that of imported tablets in 0.1 mol/L hydrochloric acid,pH 6.8 phosphate buffer,water and pH 4.0 acetate buffer. RESULTS:The optimized formu-lation of Dimemorfan phosphate tablet(1 000 tablets)was composed of dimemorfan phosphate 10 g,starch 60 g,microcrystalline cellulose 40 g,10% HPMC E5 solution and croscarmellose sodium 25 g. The friability,hardness,60 min dissolution rate and main component of 3 batches of Dimemorfan phosphate tablets prepared by optimized prescription were 0.42%-0.58%,9.8-10.5 kg,94.89%-96.21% and 99.21%-99.52%,respectively. In 4 dissolution mediums,similar factors f2 of dissolution curves between prepared tablets and imported tablets were above 50. CONCLUSIONS:Dimemorfan phosphate tablets were prepared successfully. The optimized formulation is rational. The dissolution behavior of prepared tablets is similar to that of imported tablets in vitro.
9.Study of Bilingual teaching in Neurology for Seven-year Medical Master
Lijie CHEN ; Bingrong LIU ; Weizhi WANG ; Yulan ZHU ; Huabing WANG
Chinese Journal of Medical Education Research 2003;0(04):-
We investigated the students of a seven-year medical master in the bilingual teaching program in Neurology with a questionnaire.We found that the bilingual teaching program has the following problems:the students don't have a solid foundation of medical English terminology and the content of the English teaching was higher than the ability of the students.So we think that we need to impress upon the students the importance of the program.We can also raise the overall quality of this program through an improvement of teaching methods,regulation of the proportion of English content in all courses and suitable midterm and final examinations.These alterations will effectively improve the bilingual teaching program.
10.Determination of Residual Organic Solvents in Dimemorfan Phosphate by GC
Weizhi LIU ; Hankun HU ; Baogen ZHENG ; Anni LIU ; Qiang YAN ; Ping LIU
China Pharmacist 2014;(4):563-565
Objective:To determine the content of chloroform, ethyl acetate and DMF in dimemorfan phosphate by gas chromatog-raphy (GC). Methods:The capillary gas chromatography was used with a PEG-20M column, programmed temperature, water as the solvent and FID as the detector. Results:The three organic solvents were separated and showed good linear relationship (r>0. 999 0). The detection limit of chloroform, ethyl acetate and DMF was 0. 63,0. 60 and 8. 92μg·ml-1 , respectively. The residues of the organ-ic solvents in three batches of the samples all met with the requirements of ICH. Conclusion: The method is sensitive, accurate and reliable, and can be used in the quality control of dimemorfan phosphate.