1.Effect of Borneolum on Expression of ICAM-1 in Microvascular endothelial Cells of Rat Brain
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(02):-
Methods: The experimental brain injury was induced in the SD rats by free falling object, and the expression of intercelluar adhesion molecule-1(ICAM-1)in the microvascular endothelial cells (EC) of rat brain was examined by immunohistochemistry and S-P histochemical methods.The rats were allocated to group A(normal blank control group), group B (administration of Borneolum), group C(brain injured model group) and group D(model rats treated with Borneolum).Results:ICAM-1 seldom expressed or never expressed in the normal rats brain,the administration of Borneolum could not induce its expression,and ICAM-1 expression increased in the injured brain(P
2.Soybean isoflavone attenuates trans fatty acids-induced atherosclerosis in rats
Wei MI ; Qian ZHAO ; Sijie MI ; Wu LIAN ; Tala SHI
Basic & Clinical Medicine 2015;(1):7-11
Objective To observe the effects of soybean isoflavone in attenuating trans fatty acids-induced athero-sclerosis in rats .Methods The rats were randomly divided into normal diet group、trans fatty acids group、soybean isoflavone group and trans fatty acids +soybean isoflavone group .Research kit was used to test the amounts of TG , HDL,LDL and IL-6,TNF-αin rats'blood.Bovine aortic endothelial cells were cultured and divided into control group,trans fatty acids group and trans fatty acids group +soybean isoflavone group .Western blot was performed to test the NF-κB phosphorylation ,as well as to determine ICAM-1 and VCAM-1 protein contents in bovine aortic endo-thelial cells.Results Compared with normal diet group ,the amounts of TG,LDL,IL-6,TNF-αincreased evidently (P<0.05), whereas the amounts of HDL decreased evidently (P<0.05) in the rats'blood of trans fatty acids group . After the soybean isoflavone intervened ,the amounts of TG,LDL,IL-6,TNF-αall decreased (P<0.01), meanwhile the amounts of HDL increased significantly (P<0.01).Soybean isoflavone inhibited NF-κB phosphorylation induced by trans fatty acids ( P<0.01) .The high expression of ICAM-1 and VCAM-1 induced by trans fatty acids was de-creased by soybean isoflavone when comparing with those in the control group ( P<0.01 ) .Conclusions Soybean isoflavone has a role in attenuating trans fatty acids trans fatty acids-induced atherosclerosis in rats .
3.Transurethral Retrograde Dissection of the Prostate for Benign Prostatic Hyperplasia
Chunming ZHAO ; Qiwu MI ; Daosheng LUO
Chinese Journal of Minimally Invasive Surgery 2005;0(08):-
60 g in 15 cases).The operation time ranged from 35 to 85 minutes(mean,45),and the blood loss was 50-100 ml(mean,60 ml).No case needed blood transfusion.No rupture of the prostatic capsule,venous sinuses,or perforation of the bladder-prostate junction occurred in this series.The patients were followed up for 4 to 6 months,during which the Qmax increased to 16.4-23.2 ml/s(mean,19.8 ml/s),RU decreased to 0-15 ml(mean,5 ml),and IPSS score improved to 0-6.8(mean,4.2).No patient developed urinary incontinence.Conclusions Transurethral retrograde dissection of the prostate is effective for the treatment of BPH with a low morbidity rate of urinary incontinence.The procedure is simple and results in low blood loss.
4.Exploration on improving medical immunology teaching effect
Yuan WU ; Hanning ZHAO ; Na MI
Chinese Journal of Medical Education Research 2013;(3):239-241
This paper introduced multiple flexible teaching methods in medical immunology based on its characteristics including paying attention to introductory class,activating class atmosphere,integrating multiple teaching form.Results showed that these methods stimulating interests of the students,improving their comprehensive quality and ability of innovation,so teaching effect can be improved accordingly.
5.Three-dimensional finite element analysis of rapid movement canine tooth through reducing resistance and distracting procedures
Xi ZHAO ; Junjie XUE ; Congbo MI
Chinese Journal of Medical Aesthetics and Cosmetology 2012;18(4):294-297
Objective To establish a three-dimensional finite element model of rapid canine tooth movement by reducing resistance and distracting procedures,and to discuss canine distal movement and force distribution of periodontium,and to provide theory basis for its clinical application.Methods Through 64-slice spiral scanning,temporomandibular joint (TMJ),the mandible,lower jaw denture section phantom DICOM data were obtained.Mimics software,Geomagic Studio 8.0 software,Unigraphics NX software,and Ansys11.0 software were mixed,and the three-dimensional finite element model were established under the conventional condition to move the canine (model 1 ),rapid canine movement through distracting osteggenesis of the periodontal ligament (model 2),rapid canine movement tooth movement through reducing resistance and distracting method (model 3),the strength were carried on three kind of models and the canine,the pericementum,the tooth socket bone stress distribution were observed.Results The biggest displacements on those three models occured in canine crown on 1/3,biggest displacement quantity:model 3 >model 2 >model 1,and the canine crown displacement reduced gradually from crown to the root point; in the model 1 most greatly equivalent stress mainly concentrated in the middle of distal alveolar crest,but in the models 2 and 3 most greatly equivalent stress centralism area shifted liguodistal alveolar crest.Conclusions In the process of canine distal movement,reducing bone resistance,can accelerate the tooth moving speed effectively and simultaneously,the canine has distal motion tendency.While under the action of force,the canine tends to move ligually with the canine distal movement,and thus appropriate measures should be taken to prevent canine lingual rotation in clinical work.
6.Reactive Oxygen Radicals Generation and Apoptosis in HLF Cells Induced by PM10
Xiaohong ZHAO ; Shengquan MI ; Yunjie HAO
Journal of Environment and Health 1989;0(06):-
Objective The increasing evidences indicate that the inhalable particle matter (PM10) is responsible for respiratory and cardiovascular morbidity and mortality.Generation of superoxide anion,hydroxyl radical and apoptosis in HLF cells induced by PM10 were studied in this paper to present some data for elucidating the mechanism of effects of PM10.Methods The superoxide anion and hydroxyl radical were detected respectively by cytochrome C assay and apoptosis inspected with Annexin V-FITC/PI double staining by flow cytometry.Results PM10 could generate the superoxide anion and hydroxyl radical,with significant dose-dependent manners,and the levels of the superoxide anion as well as hydroxyl radical were decreased by chitosan oligosaccharides (COS),with the significant protection effects (P
7.Role of the PI3K-AKT-mTOR signalling in cell differentiation
Yan MENG ; Reifang MI ; Chunhua ZHAO
Basic & Clinical Medicine 2006;0(12):-
Phosphatidylinositol-3-kinase(PI3K),AKT,TSC1/2,and the mammalian target of rapamycin(mTOR) signaling cascade involves many cellular processes including apoptosis,growth,proliferation and differentiation,This pathway has been found to be the most variable one in human tumors.As tumor is a poorly differentiated disease,this review examines the role of the PI3K-AKT signal pathway in cell differentiation and tumor development.
8.Effect of Borneol on ICAM-1 Expression in Retina of Ischemia-reperfusion Rat Model
Wei ZHAO ; Ningsheng WANG ; Suiqing MI
Traditional Chinese Drug Research & Clinical Pharmacology 2000;0(05):-
Objective To investigate the effect of borneol administered by gastric gavage or external application on ICAM-1 expression in rat retina with ischemia-reperfusion injury.Methods Rat ischemia-reperfusion model was established.Laser microscope and biological analysis microsoft were used to observe the change of ICAM-1 expression in retina or rats after gastric gavage or external application of borneol.Results Borneol administered by gastric gavage or external application obviously decreased the expression of ICAM-1 after the modeling for 24 hours,the difference being significant as compared with that in the model group(P
9.Genes of 16S rRNA Methylases and Aminoglycoside Modifying Enzymes in Strains Continuously Isolated from PAE in two Hospitals
Sujian WANG ; Jiaping WANG ; Xiaomei ZHANG ; Lixia ZHAO ; Zuhuang MI
Chinese Journal of Nosocomiology 2005;0(11):-
OBJECTIVE To investigate the drug-resistance and the existence of genes in 16S rRNA methylases and aminoglycoside modifying enzymes in strains continuously isolated from Pseudomonas aeruginosa(PAE) in two hospitals of Jiangsu and Zhejiang Provinces.METHODS The drug-resistance of the strains continuously isolated from PAE was detected with K-B test,five kinds of genes in 16S rRNA methylases(rmtA,rmtB,rmtC,rmtD and armA) and six kinds of aminoglycoside modifying enzymes [aac(3)-Ⅰ,aac(3)-Ⅱ,aac(6′)-Ⅰb,aac(6′)-Ⅱ,ant(3″)-Ⅰ and ant(2″)-Ⅰ] were detected by PCR.RESULTS The strains were just sensitive to cefoperazone/sulbactam,imipenem,meropenem and amikacin(hospital A:74.2%,80.0%,82.9% and 68.5%;hospital B:90.0%,50.0%,50.0% and 95.0%,respectively).There was a high rate in the drug-resistance to ?-lactamase medicines,ciprofloxacin and sulfamethoxazole co.Genes in 16S rRNA methylases were not detected from PAE strains in the two hospitals.CONCLUSIONS The rates of genes in aminoglycoside modifying enzymes detected from strains in continuously isolated from PAE are different in different hospitals.
10.Antibiotic-resistant Genetical Marks of Integron and Transposon in Pseudomonas aeruginosa Strains Isolated in Two Hospitals
Jiaping WANG ; Lixia ZHAO ; Sujian WANG ; Xiaomei ZHANG ; Zuhuang MI
Chinese Journal of Nosocomiology 1994;0(01):-
OBJECTIVE To investigate the antibiotic resistance and the genetical marks in Pseudomonas aeruginosa(PAE) strains in two hospitals of Jiangsu and Zhejiang.METHODS The drug-resistance in PAE strains was detected with K-B test,four kinds of genetical marks of integron and transposon(qacE△1-sul1,mer,tnpA and tnpU) were detected by PCR.RESULTS The strains were only sensitive to cefoperazone/sulbactam,imipenem,meropenem and amikacin.There was a high resistance rate to ?-lactamases,ciprofloxacin,and sulfamethoxazole.Genes of qacE△1-sul1(48.6%,45.0%) and merA(11.4%,5.0%) were detected from PAE strains in the two hospitals.There were no tnpA and tnpU too.CONCLUSIONS Multiple-drug-resistance in Pseudomonas aeruginosa(PAE) strains is caused mainly by qacE△1-sul1 and merA.