1.Contrastive Linguistics and Contrastive Language Teaching
Journal of Kunming Medical University 2013;(11):128-132
Objective To improve the quality and santdard of medical French bilingual teaching and promote the learning ability of the students in medical universities. Medthods Analogy between English and French was applied to the intervention of bilingual teaching in the clinical students who were learning medical French. The advantages and disadvantages were analyzed.Results The students could apply their prior English to medical French learning and make progress in both languages. A series problems were found during the practice:arrangement of teaching contents, lack of teaching materials and shortage of teaching staff. Conclusion Analogy between English and French is an effective teaching method in both foreign language teaching and bilingual teaching. But the expected teaching goals can be achieved only by formulating reasonable teaching contents and strategies and mproving teachers’ quality.
2.Celecoxib inhibits proliferation of polycystic kidney cyst lining epithelial cells through blocking mitogen-activated protein kinase signal transduction pathways
Academic Journal of Second Military Medical University 1985;0(06):-
Objective:To investigate whether celecoxib(CXB), a specific COX-2 inhibitor,can inhibit the proliferation of cyst lining epithelial cells through blocking mitogen-activated protein kinase(MAPK) signal transduction pathway.Methods: Primarily cultured cells were treated with different concentrations of CXB(0,2.5?10~(-6),5?10~(-6),1?10~(-5),2?10~(-5),3?10~(-5),4?10~(-5),5?10~(-5)mol/L) and the proliferative status was evaluated by BrdU assay.The levels of vascular endothelial growth factor(VEGF) were measured by enzyme-linked immunosorbent assay(ELISA);the production of proliferating cell nuclear antigen(PCNA) and phosphoMAPK were measured by real-time reverse transcription-PCR assay;and the expression of PCNA,MAPK and phospho-MAPK protein was detected by Western blotting.Results: BrdU assay revealed that CXB inhibited cell growth in a concentration-dependent manner;the maximum inhibition rate([63.9?1.2]%) was found when cells were treated with 2?10~(-5) mol/L CXB for 24 h.VEGF secretion by cyst lining epithelial cell was reduced by CXB in a concentration and time-dependent manner.The mRNA and protein levels of PCNA,phospho-MAPK in CXBtreated group were lower than those in control group(with no CXB treatment).Conclusion: CXB can obviously inhibit the proliferation of cyst lining epithelial cell and the secretion of VEGF,which might be through interfering with the phosphorylation of MAPK and partly blocking MAPK signal transduction pathway.
3.Analysis of urogenital Ureaplasma urealyticum infection and their drug tolerance
International Journal of Laboratory Medicine 2008;29(5):412-413
Objective To investigate the status of urogenital Ureaplasma urealyticum (Uu) infection and their drug tolerance in our area,so as to guide rational administration for the clinic.Methods Mycoplasma culture and drug susceptibility test were performed for 771 patients with urogenital infaction. The culture,identification and drug resistance of mycoplasma were carried out with one complex mycoplasma kit.Results The positive rate of Uu was 49.9%. The proportional percentage of males was 12.5% and the Uu positive rate was 22.3%,for females,the proportional percentage and Uu positive rate was 87.5% and 60.6% respectively. The population aged 21-40 was susceptible to Uu infection. The most sensitive antibioties to Uu was clindamycin (95.12%),followed by doxycycline (87.57%) and roxithromycin (86.24%).Conclusion The difference of Uu drug sensitivty was significant in different areas. So it is necessary to select antibioties by drug sensitivity. Clindamycin,doxycycline and roxithromycin may are used as preferred antibioties in treating Uu infection in our area. The drug-resistance status of spectinomycin and lincomycin was serious.
4.The application of need-hierarchy theory in the management of scientific research in a teaching hospital
Chinese Journal of Medical Science Research Management 2011;24(5):356-358
This paper probes into the scientific research management at a teaching hospital,where three responsibilities are required in clinical service,medical education and research.The staffs' need for scientific research is discussed base on Maslow's need-hierarchy theory.An incentive system is also proposed for research and professional development of the hospital.
5.Characteristics and the application status of tissue repair of small intestinal submucosa
International Journal of Surgery 2013;40(11):765-768
Small intestinal submucosa has been applied in a variety of areas of basic and clinical study with its Characteristics of anti-infective and Low immunogenicity and so on.However,it is common to find the shrinkage and other problems in some tissue repair,and affects the functional recovery of repaired tissue to a certain extent.Thus,it is still a question to be resolved that how to avoid the shrinkage and other adverse effects after tissue repair.This paper provides a reliable basis for further correct understanding of the SIS's capacity of tissue repair by reviewing and summarying its characteristics and present situation of tissue repair,especially put forwarding the shrinkage problem.
6.Application of Manual Stitching Technique for Digital Radiography in Total Knee Arthroplasty
Acta Medicinae Universitatis Scientiae et Technologiae Huazhong 2014;(4):456-458,459
Objective To obtain panorama X-ray images of the lower extremity with a simple method,eliminate the mosai-cing error,and apply this manual stitching technique for digital radiography to the measurement of the force line in total knee arthroplasty.Methods The track of X-ray tube was preset,and Dicom format data were collected by using digital X-ray ima-ging.Then,the data were imported to photoshop CS4 for manual image registration and image fusion.The reliability of the film was tested by comparing the vertical length of the body symbols proj ection in the coronal plane with that on the panorama X-ray (AutoCAD 2010)images.Moreover,the hip-knee-ankle angle was compared before and after operation.Results The matching sample t-test showed there were no significant differences in the length(4 groups of data)between the greater trochanter femur and the fibular head,and between the fibular head and the lateral malleolus between before and after operation(P>0.05 for all) .The hip-knee-ankles angle was much greater after operation than that before operation.Conclusion This manual stitching technique for digital radiography can produce seamless and precise panorama X-ray images,which can be used to reflect the length and angle of the lower extremity before and after operation.
7.Retrospective analysis and preventive strategies in the cesarean section operation incision infection of 29 cases
Chongqing Medicine 2015;(33):4663-4664,4670
Objective To investigate the risk factors of cesarean section operation incision infection ,so as to provide refer‐ence for preventing and controlling cesarean section operation incision infection effectively .Methods A total of 29 cases were se‐lected who hospitalized in our hospital during December 2011 and December 2012 and whose incision of cesarean operation was in‐fected as the observation group .They were retrospectively analyzed .Then another 29 cases were chosen whose incision of cesarean operation was not infected as the control group .The clinical data in two groups were compared and the risk of infected incision were investigated .Results The incision infection occurred in 29 of 589 cases undergoing cesarean section with the infection rate 4 .9% . Univariate analysis showed that ,the maternal BMI in observation group was (25 .9 ± 1 .1)kg /m2 ,uterine scar for 6 cases ,emergency operation for 18 cases ,operation time was(1 .2 ± 0 .6) h ,the hospitalization time was (7 .1 ± 2 .3) d ,6 cases with underlying disease , premature rupture of membranes for 12 cases ,the vagina and anus diagnosis number was(3 .3 ± 0 .6) times ,the comparison with the control group ,the difference was statistically significant (P< 0 .05) .Multivariate Logistic regression analysis showed ,BMI (OR =2 .802) ,operation time (OR = 5 .813) ,with basic diseases (OR = 6 .182) ,premature rupture of membranes (OR = 11 .219) were risk factors for cesarean section operation incision infection .Conclusion There are many factors that can influence the surgical incision infections .It is necessary for the high‐risk population to take effective measures to prevent surgical incision infections .
8.Complexity analysis of electroencephalogram in patients with Alzheimer's disease and mild cognitive impairment
Chinese Journal of Neurology 2013;46(10):687-691
Objective To investigate the Lemple-Zie complexity (LZC) characteristics in patients with Alzheimer' s disease(AD),mild cognitive impairment(MCI) and normal elderly,and the possibility of differentiating AD,MCI and normal elderly by LZC.Methods Electroencephalogram (EEG) of 30 AD patients,30 MCI patients and 20 normal elderly with eyes closed in rest state were recorded.In acquired EEG data,2048 points(10.14 s)of each channel were selected for LZC calculation by Matlab 7.0 software.Results (1) The average LZC values in AD,MCI and control groups were 0.396 ± 0.036,0.470 ±0.051,0.523 ±0.055 respectively.As compared with control group,the values in AD and MCI groups were decreased (F =43.092,P =0.000).(2) LZC values of AD in all channels (from 0.373 ± 0.042 to 0.430 ±0.083),whole brain,bilateral hemispheres,frontal and temporal areas were significantly lower than those in the normal group (from 0.498 ± 0.067 to 0.566 ± 0.059 ; t =3.602-8.747,P =0.000-0.010),and showed the significant decline(> 23%)in bilateral anterior middle temporal,frontal areas,the left parietal area.(3) Except the T6 channel,LZC values of AD groups in the remaining channels(from 0.373 ±0.042 to 0.418±0.063),the whole brain,bilateral hemispheres,frontal and temporal areas were significantly lower than those in the MCI group(from 0.455 ± 0.072 to 0.489 ± 0.063 ; in T5 channel,t =2.038,P =0.041,the others t=4.178-7.424,all P=0.000).(4) LZC values of MCI groups in the whole brain,bilateral hemispheres,temporal areas,parietal areas,the left frontal area were notably lower than those in the control group.Conclusions With the decline of the cognitive function,the EEG complexity value shows the parallel change.It suggests that the EEG complexity value can reflect the change of brain function in the duration from normal age to dementia in some degree; The MCI patients with abnormal LZC values in temporal and frontal lobes have a certain degree relation with the occurrence of AD.
9.The applications of chromatin immunoprecipitation in the study on the downstream target genes of androgen receptor in prostate cancer cells
Chinese Journal of Laboratory Medicine 2014;(9):673-677
Prostate cancer is one of the most common malignant tumor of male population in the West.Via binding to androgen response element in the genome and interacting with co-regulators,androgen receptor can participate in the development of prostate cancer and the convertion from androgen dependent prostate cancer to androgen independent prostate cancer.Chromatin immunoprecipitation ,coupled with PCR , chip,and high-throughput sequencing ,makes a huge progress in the study on the downstream target genes of androgen receptor and provide a new way to understand the molecular mechanisms of castration -resistant prostate cancer.
10.Effects of transcranial and trans-spinal low frequency magnetic stimulation on the expression of growth associated protein-43 after spinal cord injury
Chinese Journal of Physical Medicine and Rehabilitation 2012;34(8):565-569
Objective To compare the effects of transcranial and trans-spinal low frequency magnetic stimulation (MS) on the expression of growth-associated protein-43 (GAP-43) in the spinal neurons of rats after spinal cord injury (SCI). Methods Forty-five Sprague-Dawley female rats were divided randomly into a transcranial magnetic stimulation (TMS) group,a trans-spinal cord magnetic stimulation group and a model control group with 15 in each group.Another 6 rats served as a normal control group.Spinal cord injury at the T9-10 level was modeled according to the modified Allen's method.The rats in the two MS groups received magnetic stimulation at 0.5 Hz and 75% of the maximum output intensity ( 1.9 T) of the magnetic stimulator beginning 24 h post injury.They received 30 pulses daily for 28 days while the rats in the model control group were not exposed to MS.Basso-Beattie-Bresnahan (BBB) scale scores and motion evoked potentials (MEPs) were measured at the 1st,7th,14th,21 st and 28th day post injury.The expression of GAP-43 protein was studied using immunohistochemical methods and semi-quantified by Western blotting. Results At the 4th week post injury the average BBB scores in the model control group,the TMS group and the trans-spinal cord magnetic stimulation group were all significantly different. MEP amplitudes decreased significantly in all groups after the injury,and the latency was prolonged,but there were no significant differences among groups at any time point.GAP-43 expression also increased after SCI,and it was significantly higher in the MS groups than in the model control group at 4 weeks. Moreover,the expression of GAP-43 in the trans-spinal cord MS group was significantly greater than in the TMS group.Conclusion Magnetic stimulation can promote nerve regeneration and improve locomotor recovery after spinal cord injury,at least in rats.The effect of trans-spinal cord magnetic stimulation is superior to that of TMS.The mechanism may be related to the activation of central pattern generators.