This study is to establish the gastric cold model of rats. After gastric feeding with cold water for 5 weeks and extra iced water bath in the last 2 weeks, model group show distinct physical sign of gastric cold syndrome. The pathology of gastrics reveals gastricism of model group, while treatment group(treated with Fanzuojin Wan) show mild lesion. Elisa detection of model group show that the solution of interleukin-2 (IL-2) is higher than blank group. The difference with significance among model group, treatment group and blank group reveals the success of the establishment of gastric cold syndrome.
Animals ; Cold Temperature ; Disease Models, Animal ; Female ; Humans ; Male ; Rats ; Rats, Wistar ; Stomach ; chemistry ; metabolism ; pathology ; physiopathology ; Stomach Diseases ; metabolism ; pathology ; physiopathology

This study is to establish the gastric hot model of rats. After gastric feeding with ethanol solution for 3 weeks and feeding with extra capsaicin and ethanol solution for another 2 weeks, model group show distinct physical sign of gastric hot syndrome. The pathology of gastrics reveals gastricism of model group, while treatment group (treat with Zuojin Wan) shows mild lesion. Elisa detection of model group show that the solution of interleukin-2 (IL-2) is higher than the blank group. The obvious difference among model group, treatment group and blank group reveals the success of the establishment of gastric hot model.
Animals ; Disease Models, Animal ; Drugs, Chinese Herbal ; administration & dosage ; Eating ; Female ; Humans ; Male ; Rats ; Rats, Wistar ; Stomach Diseases ; drug therapy ; pathology ; physiopathology

Vitreo-retinal surgery is one of the effective methods in treating severe vitreoretinopathy.However,there remains great variance in surgical quality,outcomes and success rates among hospitals of different areas in China.This article focuses on how to im- prove in surgical outcomes and success rate as well as to avoid complications of vitreo-retinal surgery.Specific issues are addressed on such as indications and timing of vitreo-retinal surgery,management of pre-operative patients,applications of new appliances and mate- rials,maneuver of surgical techniques and nurturing appropriate habits of surgery.

Electroencephalogram (EEG) signals provide an objective physiological index for the identification of the driver's fatigue state. It is very important to choose appropriate channels and EEG signal features adaptively due to the features varying with different subjects and time. A support vector machine (SVM) based increasing feature selection algorithm for driving fatigue EEG classification is presented in this paper. The algorithm is a method to select EEG channels and features for driving fatigue adaptively in an ascending order. We can select the optimal feature each time from the remaining candidate features using the optimized SVM model minimum error rate as the index. The experimental calculation has characteristics of using 16 electrode channels which cover the whole head in the main area, of selecting 208 candidate features as the initial set, of selecting to the EEG data calculation recorded in 5 different time periods of a subject, and of choosing error rate of 2% as the algorithm termination condition. The selected features and models, therefore, can reach a high level of classification and generalization ability.
Algorithms ; Automobile Driving ; Electrodes ; Electroencephalography ; Fatigue ; Humans ; Support Vector Machine ; Time Factors

Objective To investigate the role of Twist and vascular endothelial growth factor (VEGF)in the development of epithelial ovarian cancer and their relationship with clinical pathological features.Methods The expressions of Twist and VEGF were detected by immunohistochemical staining (SP)method in 80 cases of epithelial ovarian cancer and 10 paired cases of normal ovarian tissue.Results In the 80 cases of ovarian cancer tissues,the positive expression rate of Twist and VEGF in epithelial ovarian cancer was 85% and 86.25%,respectively,which were remarkably higher than those in normal ovarian tissues (P <0.01).The expressions of Twist and VEGF were closely associated with clinical stages,pathological grades and lymph node metastasis,but not correlated with age or pathological patterns (P >0.05).There was a significant correlation between the expressions of Twist and VEGF in epithelial ovarian cancer (r =0.646,P <0.01).Conclusion The high expressions of Twist and VEGF may play a potential role in the occurrence,development and invasion process of epithelial ovarian cancer.

Objective: To detect methylation status of p16 CDKN2A exon 1 during experimental carcinogenesis in rats. Methods:Thirty male clean SD rats were fed with 0.02 g/L of 4-nitroquinoline-oxide (4NQO) in drinking water.13, 16 and 24 weeks after experiment the normal, moderate-severe dysplasia and invasive squamous cell carcinoma tissues were removed from their tongues respectively; then the methylation status of p16 CDKN2A exon 1 were detected by methylation-specific PCR(MSP). Results:A 123 bp-unmethylated product was amplified in all samples but the methylated product was not detected in any of the samples. Conclusion: The p16 CDKN2A exon 1 appeares to be unmethylated during carcinogenesis of tongue cancer in experimental rats.

Background Increase of lens thickness at incipient cataract is a key factor of onset of primary angle-closure glaucoma (PACG).Phacoemulsification (Phaco) or phacotrabeculectomy (Phacotrabe) have been documented to be effective for the patients of PACG associated with cataract.However,which surgery is more effective and safe is lack of evidence.Objective This study was to assess and compare the clinical effectiveness of Phaco versus Phacotrabe for PACG with cataract.Methods The relevant literature was searched electronically from the PubMed (1966 to June 2011),EMB Reviews (1966 to June 2011) and Cochrane Library (Issue 1,2011).The manually searching of relevant conference proceedings was used as the supplement.The articles of randomized controlled trial (RCT) about the clinical effectiveness of Phaco versus Phacotrabe for PACG with cataract were included.The methodology quality of included literature was graded.The analysis indexes included intraocular pressure (IOP)-lowing range,postoperative administration of glaucoma drugs,incidence of positive complication,postoperative best corrective visual acuity (BCVA) and perimetry damage.The RevMan4.2 software from Cochrane Collaboration was used for the Meta analyses.Results Three RCTs about phaco versus Phacotrabe for PACG with cataract were selected in this study with the 164 eyes of 164 cases.Meta analysis showed that the IOP-lowing range was larger in the Phacotrabe group compared to only Phaco group with the WMD of 1.17 and 95％ CI of 0.06-2.27 (P =0.040),and the drug dosage of anti-glaucoma was less in the Phacotrabe group in comparison with the Phaco group with the WMD of 0.5 and 95％ CI of 0.24-0.77 (P =0.000).However,the incidence of postoperative complication was higher in the Phacotrabe group than that of the Phaco group with the RR of 0.08 and 95％ CI of 0.02-0.33 (P =0.000).No significant difference was found in the BCVA (WMD =0,95％ CI:-0.13-0.13,P=1.00) andperimetry (WMD =1.01,95％CI:0.56-1.82,P=0.98).Conclusions Compared with Phaco,Phacotrab has a better IOP-lowing effectiveness and slightly worse safety.Phaco and Phacotrab have a fairly influencc in the postoperative BCVA and perimetry.As the sample sizes of the included trials are relatively small,more welldesigned large-scale RCTs are needed.

AlM:To construct recombination eukaryotic expression plasmid of human thyrotropin receptor extracellular domain encapsulated with cationic liposomes.
METHODS:We amplified the target gene of shuttle vector PHMCMVTSHR289, conjugated the target gene and eukaryotic expression plasmid pcDNA3. 1 +, and accredited whether pcDNA3. 1+/TSHR289 was connected or not by enzymatic digestion and sequencing. Cationic liposomes encapsulated the recombination plasmid pcDNA3. 1+/TSHR289.
RESULTS: Recombination plasmid pcDNA3. 1+/TSHR289 digested with enzyme Hindlll and the fragment through 0. 8% gel electrophoresis showed 512bp strip. Recombination plasmid pcDNA3. 1+/TSHR289 were found synonymous mutation through forward ( AAC to AAT ) and reverse sequencing ( GCG to GCT) . The volume ratio of cationic liposomes and recombinant plasmid was 3:1.
CONCLUSlON: lt is successful to construct the recombination plasmid pcDNA3. 1+/TSHR289 by accredit it through enzymatic digestion and sequencing.

AIM: To investigate the clinical effect of vitamin B12 eye drops for vision fatigue caused by visual display terminals (VDT).
METHODS: Totally 50 patients (100 eyes) with vision fatigue caused by VDT were averagely divided into two groups. The control group were treated with normal saline,the treatment group were treated with vitamin B12 eye drops, 3 times per day, one drop each time, continuous for 60d. Accommodative parameters and Schirmer Ⅰtest were measured and analyzed before and after treatment.
RESULTS: After treatment, the results of Schirmer Ⅰtest, accommodative amplitude and accommodative facility of the treatment group were higher than those of the control group ( all P < 0. 05 ). And the results of accommodation lag of the treatment group were lower than those of the control group (P<0. 05).
CONCLUSION: Vitamin B12 eye drops can lessen symptoms of dry eye, improve accommodative function and treat vision fatigue caused by VDT.

Based on the analysis of current condition of local medical schools and medi-cal talents demand at the grassroots level,this paper indicates that,taking students’personality development as a breakthrough point,with practice platform construction as main part,supple-mented by multi-knowledge hierarchy and scientific and cultural exposure,backed by workable policy.