1.SEVERAL QUALITATIVE METHODS FOR THE SCREENING OF FUNGI TO DECOMPOSE LIGNIN
Lei CAI ; Jun-Fen YIN ; Li-Ping YANG ; Ke-Qin ZHANG ;
Microbiology 1992;0(01):-
Several methods for the qualitative screening of fungi to degrade lignin were introduced in this paper, with detailed protocols and discussing for each assay.
2.Survey on satisfaction rate of vaccination service and awareness rate of vaccination knowledge among parents in Chengdu
Yanmei WANG ; Wen CHEN ; Ke ZHENG ; Rongna HUANG ; Rupei YANG ; Jun CAI ; Liangzhi ZHANG
Chongqing Medicine 2014;(24):3210-3211,3216
Objective We conduct this research in order to understand the satisfaction rate of vaccination outpatient service and awareness rate of vaccination knowledge among parents ,and to provide scientific basis for strengthening immune programming . Methods We used unified and structured questionnaire suggested by Regulations for Management of Vaccination Units in Sichuan Province .A total number of 116 vaccination outpatient sections were included in our research and in each outpatient section ,30 par-ents were investigated .Results In children′s parents ,the overall satisfaction rate of vaccination outpatient service was 98 .07% , with the highest satisfaction rate(96 .41% ) in technical skills of vaccination staffs ,and lowest satisfaction rate(94 .34% ) in the en-vironment of vaccination outpatient section .The overall awareness rate of vaccination knowledge was 88 .02% ,with the highest awareness rate(100 .00% ) in the question “If it is necessary to take vaccines after child′s birth” ,and lowest awareness rate (67 .93% ) in the question“Which are the three kinds of national immunization vaccines” .Conclusion In Chengdu ,the satisfaction rate of vaccination service is quite high among parents and most of the parents understand the necessity of taking vaccines ,but the awareness rates of questions related to vaccines are low .Therefore ,it is necessary to continue pushing standardized construction of vaccination outpatient service and strengthen health education about immune programming .
3.Evaluation of objective visual quality after corneal cross-linking using double-pass analysis system
Meng-Meng, WANG ; Kun-Feng, DONG ; Jun-Hong, ZHANG ; Ke, DIAO ; Rui-Fang, LI ; Yi, CAI
International Eye Science 2016;16(6):1196-1198
?AIM:To evaluate the objective visual quality of patients who underwent corneal cross-linking for the keratoconus using double-pass analysis system.? METHODS: Advanced keratoconus patients who underwent UV - riboflavin corneal cross - linking from January to July 2015 were included. The outcomes of their objective scattering index ( OSI ) , predicted visual acuity ( VA ) , the cut - off frequency of modulation transfer function ( MTF cut- off ) , the Strehl ratio ( SR ) were compared before and 6mo after corneal cross-linking.?RESULTS: A total of 13 patients ( 16 eyes ) were included. There was no statistically significant difference between pre- and 6mo postoperative data in uncorrected visual acuity, best corrected visual acuity, refractions and mean value of Sim-k (P>0. 05). Non-invasive average tear film break up time ( NIAvg-BUT ) detected by the Sirius system decreased after corneal cross-linking ( P<0. 05 ) . Using double - pass analysis system, no statistically significant change was found in MTF cut off, Strehl Ratio, OSI before and after treatment(P>0. 05). Tear Film Analysis Mean OSI increased at 6mo postoperatively (P<0. 05).? CONCLUSION: The subjective visual quality isn’t effected by corneal cross-linking. The tear stabilities of patients are influenced by these operations at 6mo postoperatively. More observations on long-term effect are needed to be taken in the future.
4.Experimental study of intracerebral transplantation of TH gene modified astrocytes for treating Parkinson's disease
Jun LIU ; Ke-Cheng ZHANG ; Wen-Qin CAI
Journal of Third Military Medical University 2001;23(5):556-558
Objective To explore the role of tyrosine hydroxy lase (TH) gene in the treatment of Parkinson's disease (PD) by using ex vivo gene transfer. Methods After the construction of TH gene in a retroviral vector, the astrocytes were cultured with the supernatant containing the recombinant DNA and then grafted into the cerebrum of PD rats. The reduction of the rat rotation beharior was evaluated. Results The rotati on of PD rats was markedly improved in the rats with ex vivo gene transfer. Conclusion TH has an obvious efficiency on the treatment of PD and the astrocytes can be used as effective gene transfer cells.
5.Construction of eukaryotic expression vector of recombinant immunotoxin human VEGF165-PE38 and its expression
Changchen HU ; Yiquan KE ; Binquan WANG ; Liyuan ZHOU ; Jun Lü ; Fabing ZHANG ; Jiankan LU ; Yingqian CAI ; Lingsha QIN
Cancer Research and Clinic 2009;21(4):222-225
Objective To construct a new recombinant immunotoxin expression vector by using human VEGF165 and a truncated pseudomonas exotoxin A ramification (PE38) gene, and explore the expression of the VEGF165-PE38 fusion protein in HEK293 cells. Methods VEGF165 was cloned by polymerase chain reaction (PCR). PE38 gene was gained from an vector plasmid pRB391 by restriction endonuclease digestion, and then inserted to the eukaryotic expression vector pIRES2-EGFP. After the eukaryotic recombinant vector pIRES2-VEGF165-PE38-EGFP was identified by restriction endonuclease digestion and sequence analysis, the vector was transfected into HEK293 cells by liposome protocol. RT-PCR and ELISA method was used to confirm the expression of the fusion gene in the HEK293 cells. Results Restriction endonuclease digestion and sequence analysis revealed the VEGF165-PE38 fusion gene was cloned into the eukaryotic expression plasmid vector pIRES2-EGFP successfully. The pIRES2-VEGF165-PE38-EGFP fusion gene could express in the HEK293 cells. Conclusion The result provide the basis for search of the targeted cytotoxic activity to tumor vascular endothelial cells and may have some potential value in clinical application.
6.Analysis and management of complications caused by holmium laser ureterolithotripsy
Mingxi XU ; Zhong WANG ; Guoqin DONG ; Mujun LU ; Ke ZHANG ; Zhikang CAI ; Yueqing JIANG ; Xiaomin RENG ; Haijun YAO ; Jun DA
International Journal of Surgery 2010;37(5):296-299
Objective To study the the causes, management and preventive measures for complications of holmium laser ureterolithotripsy. Methods Three hundred and seven cases of uteteral calculi from Jan. 2006 to Jan. 2010 were reported (203 men and 104 women, age ranged from 18-83 years,mean age 51.6 years). One hundred thirty-three patients had calculi in the lower ureter,94 in the middle part and 80in the upper ureter. Results The overall comminution rate was 89.9% (276/307 cases). sixteen cases (5.2%) were followed by ESWL due to the shift of the stones to the renal pelvis. The operation failed in 9 cases(2.9%), 3 cases(1%) had perforation,and recoveried after open operation. Deep infection was found in 3(1%)cases,which recoveried after anti-infective therapy. Conclusions Holmium laser ureterolithotripsy is an effective method for treating ureteral calculi, with advantage of high efficiacy,safety and minimal invasion. To master the operating induction, to raise operating technique and to take correct measure could reduce complications effectually.
7.Root cause analysis as used in China's hospital management: current research and application
Xiaoping XU ; Dongning DENG ; Dongge KE ; Jun XU ; Xiao CAI ; Yonghong GU ; Xinshi ZHANG ; Qianhui YU ; Zhiquan CHEN
Chinese Journal of Hospital Administration 2017;33(8):623-626
Objective To review the current research and application of root cause analysis (RCA) method in China's hospital management.Methods A retrospective analysis in six aspects was made by means of formulating a retrieval strategy and inclusion criteria, retrieval of databases, and literature review.Results The number of Chinese RCA researches was increasing year by year, mostly from researcher of the eastern coastal areas.These studies focused on the effects of RCA application outcomes and nursing safety.Tools in use were mainly fishbone diagram, brainstorming and 3-why method.72.24% of the root causes as found in literature were system factors, and 27.76% were human factors.Most of the researches made positive comments on RCA.Conclusions RCA is being warmly embraced by China's hospital management as it can positively change the accountability culture towards adverse events.Yet RCA has not been satisfactorily applied, and its future research and application in China's hospital management need more in-depth study and critical analysis.
9.Randomized controlled trial on comorbid anxiety and depression treated with electroacupuncture combined with rTMS.
Lin-li HE ; Zhong ZHENG ; Ding-jun CAI ; Ke ZOU
Chinese Acupuncture & Moxibustion 2011;31(4):294-298
OBJECTIVETo compare the efficacy differences between integrative therapy of electroacupuncture and repetitive transcranial magnetic stimulation (rTMS) and simple rTMS only in the treatment of comorbid anxiety and depression (CAD).
METHODSEighty-five cases of CAD were randomized into two groups. The observation group (40 cases) was treated with electroacupuncture at Baihui (GV 20), Yintang (EX-HN 3), Shenting (GV 24), Shenmen (HT 7) and Neiguan (PC 6) mainly, combined with rTMS. The control group (45 cases) was treated with simple rTMS. Separately, before treatment, after 5 days and 10 days treatment, Hemilton Depression Scale (HAMD) and Hemilton Anxiety Scale (HAMA) were used for the scoring of depression and anxiety. Additionally, the efficacies were compared between two groups.
RESULTSAfter 5 days, 10 days treatment, the scores of HAMA, HAMD were reduced remarkably as compared with those before treatment in two groups (all P < 0.001), HAMA score in observation group was lower than that in control group after 10 days treatment (P < 0.05). The remarkable effective rates of depression and anxiety in observation group those 10 days that treatment were 87. 1% (27/31) and 90.3% (28/31) respectively, which were higher apparently than 61.8% (21/34) and 61.8% (21/34) in control group separately (both P < 0.05).
CONCLUSIONThe integrative therapy of electroacupuncture and rTMS is definitely effective on CAD. This method is better than simple rTMS.
Adult ; Anxiety ; therapy ; Combined Modality Therapy ; Depression ; therapy ; Electroacupuncture ; Female ; Humans ; Male ; Middle Aged ; Transcranial Magnetic Stimulation ; Treatment Outcome ; Young Adult
10.Preparation of diclofenac sodium liposomes and its ocular pharmacokinetics.
Kao-xiang SUN ; Ai-ping WANG ; Li-jun HUANG ; Rong-cai LIANG ; Ke LIU
Acta Pharmaceutica Sinica 2006;41(11):1094-1098
AIMTo prepare diclofenac sodium liposomes and observe its ocular pharmacokinetics in rabbits.
METHODSThe diclofenac sodium cationic liposomes were prepared by reverse-phase evaporation methods and the formula of liposome was optimized with uniform design. HPLC method was established and validated for the determination of diclofenac sodium in precornea, cornea and aqueous humor of rabbit eye. Liposome and eyedrop solution 50 microL with total 50 microg diclofenac sodium were instilled to eyes of rabbits, separately. Samples of tear, cornea and aqueous humor were collected at different time intervals after rabbits were sacrificed. The ocular pharmacokinetics was investigated by the concentration-time data of tear, cornea and aqueous humor.
RESULTSThe mean particle size of the diclofenac sodium liposomes was 226.5 nm with zeta potential of + 18. 1 mV. The entrapment efficiency reached 63%. Compared with solution, liposome was characterized by slower clearance in precornea. The concentration of diclotenac in cornea and aqueous humor instilled with liposome were higher than that with eye-drop solution. Cmax of diclofenac sodium in aqueous humor instilled with liposome and eye-drop solution were (0.69 +/- 0.25) and (0.48 +/- 0.19) microg x mL(-1) and (36.68 +/- 11.7) and (21.82 +/- 8.6) microg x g(-1) in cornea, respectively. But no significant difference were found to Tmax in aqueous humor and cornea between liposome and eyedrop, T(1/2) of diclofenac in aqueous humor and cornea with liposoine were longer than that with eye-drop solution. The ocular bioavailability of liposome in aqueous humor was 211% compared with that of eyedrop.
CONCLUSIONDiclofenac sodium cationic liposomes can increase the corneal contact time, enhance the corneal permeability of diclofenac sodium and improve its ocular bioavailability.
Animals ; Anti-Inflammatory Agents, Non-Steroidal ; administration & dosage ; chemistry ; pharmacokinetics ; Aqueous Humor ; metabolism ; Area Under Curve ; Biological Availability ; Chromatography, High Pressure Liquid ; Cornea ; metabolism ; Diclofenac ; administration & dosage ; chemistry ; pharmacokinetics ; Drug Compounding ; Liposomes ; Microscopy, Electron, Transmission ; Particle Size ; Rabbits ; Random Allocation