2.Effect of suramin on trabeculectomy in rabbit
International Eye Science 2015;(4):601-604
AIM:To investigate the effect of suramin concentration changes on trabeculectomy in rabbit, and to provide treatment strategies for glaucoma on the basis of experiment.
METHODS:Thirty-two albino rabbits were randomly divided into four groups, including standard control group, experimental group Ⅰ, experimental group II, and experimental group Ⅲ. Each eye was performed standard trabeculectomy. During surgery, standard control group was given a piece of cotton with 0. 3mg/mL mitomycin C ( MMC ) for 2min, and the other three groups were given a piece of cotton with 0. 3, 0. 4, and 0.5mg/mL suramin respectively for 2min. The filtering blebs and intraocular pressure ( IOP ) were observed at the 3, 7, 15, and 30d after surgery. Some conjunctiral specimen were observed with hitochemicall ( HE staining) and immunohistochemicall methods.
RESULTS:At postoperative 7, 15, and 30d, the changes of the IOP, functional filtering blebs, and the number of positive cell nuclear in experimental group II and experimental group Ⅲ were significantly different compared with those in standard control group and experimental group Ⅰ (all P<0. 05), and the differences between experimental group Ⅰ and standard control group were not significant (P>0. 05). The changes of the IOP and the number of positive cell nuclear in experimental group Ⅲ were significantly different compared with those in experimental group II (P<0. 05), whereas the differences in functional filtering blebs between experimental group Ⅲ and experimental groupII were not significant (P>0. 05). The status of filtering channel in experimental groupII and experimental group
Ⅲ were better than those in experimental group Ⅰ and standard control group.
CONCLUSION: The concentration of suramin has a significantly influence on its effect. When the concentration is 0. 3mg/mL, the antiproliferative effect of suramin is no more than that of MMC. The effect of 0. 4, 0.5mg/mL suramin is better than MMC. 0. 5mg/mL suramin has a better effect on controlling IOP and suppressing the growth of fibroblasts than 0. 4mg/mL suramin.
3.Application of Segmental Design Principles in the Small Incision Approach Rigid Internal Fixation for the Treatment of Maxillofacial Fractures
Kun ZHAO ; Zhongjun YAO ; Fan YANG
Journal of Medical Research 2017;46(8):185-187,168
Objective To explore the application effects of segmental design principles in the small incision approach rigid internal fixation for the treatment of maxillofacial fractures.Methods With a retrospective study,from September 2012 to April 2016,172 patients with maxillofacial fractures were selected as the research object in our hospital.All the patients were divided into the observation group of 100 patients and control group of patients according to the different treatment methods.Two groups were treated with mall incision approach rigid internal fixation.The observation group were given the preoperative design based on the segmental design principles.The other operation process were similar with the control group.Results All patients were completed the operation,the fracture were healed by Ⅰ stage.The postoperative 3months of total effective rates of the observation group and the control group were 98.0% and 83.3%.The total effective rate of the observation group was significantly higher than that of the control group (P < 0.05).The postoperative 3months of infection,nerve injury,salivary fistula,screw loosening and complication rate in the observation group was 3.0%,so that was 20.8% in the control group,the observation group was significantly lower than the control group (P < 0.05).The postoperative 3months of occlusal relationship and normal rates of the observation group were 99.0% and 98.0%,respectively.The control group was 93.1%and 90.3%,respectively.There were between the two groups statistically significance difference(P < 0.05).Conclusion The segmental design principles in the small incision approach rigid internal fixation for the treatment of maxillofacial fractures can improve the therapeutic effect,reduce the incidence of postoperative complications,improve the occlusal relationship with normal mouth opening rate.It is an ideal method for the treatment of maxillofacial fracture.
4.A linguistic analysis of current situation of slogans in schistosomiasis health education
Liying ZHOU ; Yao DENG ; Kun YANG
Chinese Journal of Schistosomiasis Control 2010;22(2):189-191
Objective To understand the the current situation of the slogans in the schistosomiasis health education from the linguistic aspect.Methods Sixty-two slogans in the schistosomiasis health education were collected,then the rationality and validity of them were analyzed from two aspects :the language form and the semantic content.Results Most of the slogans had the appropriate language form and the rational semantic content,they could propagandize the policy and educate the people very well,but there were still some slogans had the inappropriate language form or have the irrational semantic content and so on.Conclusion In order to make the slogans in the schistosomiasis health education more effective,we should attach importance to the language form and the semantic content of them.
5.Study on discourse right construction of China’s medical aid to Africa
Liying ZHOU ; Yao DENG ; Kun YANG
Chinese Journal of Schistosomiasis Control 2016;28(6):721-723
Objective To analyze the discourse right construction of China’s medical aid to Africa,so as to provide evidenc?es for improving the effect and sustainable development of China’s medical aid to Africa. Methods The documents of the dis?course right that China constructed in the medical aid to Africa were selected at different periods as discourse samples. The achievement and deficiency were analyzed from four aspects,namely confident,charismatic,influential,and dominant. Re?sults China’s medical team made much in the discourse right construction in their aid to Africa,but some China’s medical team members were still too cautious and too low?key. China’s medical team gained the trust of the people of Africa,but the lan?guage communication difficulties still hampered in China’s medical aid to Africa. Chinese medical team were widely praised by the African society,but in the west,some African media,even China’s media still neglected to report China’s doctors. China’s international discourse right were greatly improved,but western countries still dominated the public opinion. Conclusion Chi?na should refer to the actual situation of medical aid to Africa to strengthen the construction of discourse right.
6.Generation and expression of Epstein-Barr Virus Latent membrane protein 2A recombinant adenovirus
Guangyong PENG ; Kun YAO ; Lin XU
Chinese Journal of Immunology 1985;0(03):-
Objective:To generate Epstein-Barr virus(EBV) Latent Membrane Protein 2A(LMP2A) recombinant adenovirus,and provide for further investigation on the therapy vaccine against EBV associated malignancies.Methods:Full length cDNA of encoding LMP2A of EBV had been amplified by reverse transcription-PCR and cloned into pGEM-T vector.The encoding cDNA of LMP2A was inserted into E1,E3-substituted adenovirus vector pAX1CW,then the LMP2A recombinant adenovirus vector was contransfected into 293 cells togetherwith EcoT221 digested Ad5-TPC.The LMP2A recombinant adenovirus was generated by homologous recombination,and primarily identificated by ClaI enzyme digestion.The expression of LMP2A on CV1 cells infected with recombinant adenovirus analyzed by fluorescence-activated cell sorting(FACS) and confocal microscope.Results:The replication-deficient LMP2A recombinant adenovirus was generated efficiently with the titers of 2.3?10 8 pfu/ml.The LMP2A could be seen on CV1 cells membrane with confocal microscope 48 h post infected with recombinant adenovirus and the percentage of CV1 cells expressing LMP2A was 94.4% by means of FACS analysis.Conclusion:These suggested that LMP2A could be expressed efficiently by recombinant adenovirus mediated transfer,and it was the foundation of further researching in its function and developing the suitable genetic engineering vaccine against EBV associated malignancies.
7.How to Enhance the Awareness of Medical Dispute Avoiding in Clinical Education
Kun WANG ; Chenhong WANG ; Jilong YAO
Chinese Journal of Medical Education Research 2003;0(02):-
If we can add how to avoid medical dispute into clinical education,it must be very helpful to young doctors in their medical work after graduation.The article analyzed the cause of medical dispute,and proposed how to enhance the education of medical dispute avoiding,and prove a efficient way to improve clinical education.
10.Chitosan-collagen polymer induced remineralization of tooth hard tissue through self-growing methods.
Xun REN ; Jing YAO ; Qin DU ; Chuhang LIAO ; Kun TIAN
West China Journal of Stomatology 2014;32(5):519-524
OBJECTIVETo modify biomacromolecules, such as chitosan and collagen, to synthesize a mineralized template that will induce self-growing remineralization of tooth enamel.
METHODSNatural polycation polysaccharide chitosan was modified through phosphorylation to synthesize the polyanion derivative ofphosphorylated chitosan. Parent hydrogels com- bined with chitosan and collagen I were built through peptide binding reaction using genipin as a crosslinker. The gels self- assembled on the tooth's inert surface, which was stimulated by ultraviolet radiation. The bionic saliva provided mineralized ion, and then the hydroxyapatite assembled and grew in situ on the tooth.
RESULTSThe functional group P04(3-) (3,446 cm(-1)) was grafted on chitosan as confirmed by the Fourier transform infrared spectroscopy. The porous polyelectrolyte complex hydrogel formed by the interaction between the polycation chitosan and the polyanion phosphorylated chitosan could induce hydroxyapatite crystal nucleation and growth on the hydrogel fiber surfaces. The neonatal crystal was hydroxyapatite as confirmed by X-ray diffraction and was tightly connected to the tooth. A continuous structure of column crystals with sizes ranging from 30 nm to 60 nm was observed. The structure was in parallel direction similar to the direction of the enamel rod, and its hardness was close to dentin.
CONCLUSIONThe parent hydrogels that were easily obtained and controlled could mimic the template of the enamel mineralization and induce a self-growing hydroxyapatite, which is an important step in the structural bionics of enamel.
Biocompatible Materials ; Chitosan ; Collagen ; Dental Enamel ; Durapatite ; Microscopy, Electron, Scanning ; Polymers ; Spectroscopy, Fourier Transform Infrared ; Tooth ; Tooth Remineralization ; Ultraviolet Rays ; X-Ray Diffraction