Objective To explore the surgical treatment of Crohn's disease(CD).Methods Clinical data of 11 patients with Crohn's disease undergoing surgery were retrospectively analyzed.Results 9 cases were diagnosed before operation,with symptoms including abdomen pain,diarrhea or constipation,weight loss,and segmental lesions.Abdominal mass was the most common cause,accounting for 54.5%(6/11)in surgery,and intestinal obstruction was secondary.accounting for 36.4%(4/11),and perianal abscess,9.1%(1/11).Partial enterectomy and anastomosis was the main procedure.3 cases were suspected malignance and underging radical cure.The pathology results showed there was moderate atypical hyperplasia in 2 of 3.Most of the patients had a good recovery and their nutritional conditions were improved obviously(P＜0.05).Conclusion Abdominal mass and intestinal obstruction are the main causes of surgical management in patients with Crohn's disease.The possibility of cancerization is higher in patients with longer medical history.The length of intestine reseeted would be enough with visitable lesions resected,and the operative effects are as good as those underwent radical cure.

Objective To establish a fast and effective gene diagnosis method for Wilson's disease(WD) patients by double PCR-SSCP technology.Methods We amplificated exon8 and exon12 of ATP7B gene by double PCR from genomic DNA of 140 unrelated WD patients and 30 normal controls,then used SSCP technology to screen them.At last we identificated these patients' mutation features by direct sequencing.Results No abnormality shift was found in 30 controls.In 140 patients,we found 7 types of abnormal mobility shifts in 66 cases(47.14%).In subsequent direct sequencing,mutation rate of Arg778Leu/Gln was 37.14%(52/140),and Thr935Met was 12.86%(18/140).Conclusion Double PCR-SSCP diagnosis technology is a effective method which can improve diagnosis rate for Wilson disease.

In lieu of large samples of cases and/or controls with hundreds of markers spreading throughout the human genome, researchers started to notice the dramatic increase of genome-wide association study (GWAS) for complex disorders, in the last 5 years. This paper highlights the statistical challenges in such huge-scale genetic studies, and introduces the analytical strategies and steps for handling GWAS data. Such issues as quality control of data, population stratification, methods available to data analysis and results presentation, replication, as well as the limitations of GWAS studies and the challenges presenting for statistics, are addressed.

Objective:To see the influence of different antiplatelet therapies on stroke patients’ readmission by performing a deep data-mining into Beijing Healthcare Insuring Database,based on a large sample size.Methods:Aretrospective cohort study,was adopted to extract patients primarily diag-nosed as ischemic stroke from healthcare database.The first hospital records were considered as the pa-tient’s baseline in this study,who were divided into MAPT (aspirin)and DAPT (aspirin and clopi-dogrel)according to the patient’s baseline medications.A follow-up was conducted to see whether the patients would have rehospitalization record because of major result events after medication.The major re-sult events,included:(1 )recurrence of ischemic stroke;(2)hemorrhagic transformation of ischemic stroke;(3)myocardial infarction;(4)the digestive hemorrhage.The Kaplan-Meier figure was used to compare the survival situations between these two groups,the log-rank test was used to test the difference of the survival curve,and 1 ∶1 propensity score matching was calculated from the patients’baseline da-ta.Cox proportional hazards model was used to calculate the hazard ratio (HR).Results:A total of 27 695 patients From January 201 0 to September 201 3 were included,4 047 with DAPT,and 23 648 with MAPT.Because the baseline characteristics of the patients was disequilibrium,so we used 1 ∶1 pro-pensity score matching,after which,the number of the two groups was 4 046 each.Adjusted for the gen-eral demographic characteristics such as age,sex,nationality,complication and drug combination,no statistical significance was observed between the survival curves of the two groups (P =0.06).HR value of major result events between the groups was 0.91 (0.82 -1 .01 ,P =0.07),which was not statistically significant.The covariate gender HR =1 .36 (1 .20 -1 .55,P <0.05),accompanied by diabetes HR =1 .36 (1 .20 -1 .54,P <0.05 ),dyslipidemia HR =1 .1 3 (1 .00 -1 .27,P =1 .1 3),heart disease HR =1 .39 (1 .22 -1 .58,P <0.05)was statistically significant.Drug combination with other antiplate-let agents HR =1 .05 (0.95 -1 .1 7,P >1 .05)did not increase the risk of readmission.Conclusion:There was no difference in prevention of readmission between patients with DAPT and MAPT.Patients with complications should actively treat the complications at the same time as they prevent recurrence after first attack.

OBJECTIVETo study the protective effect of formula of removing both phlegm and blood stasis (TYTZ) on myocardial tissues of Chinese mini-swine with coronary heart disease of phlegm-stasis cementation syndrome.

METHODTotally 36 Chinese mini-swine were randomly divided to six groups: the normal control group, the model group, the Danlou tablet group, and TYTZ groups with doses of 2.0, 1.0, 0.5 g x kg(-1), with six in each group. Except for the normal control group, all of other groups were fed with high-fat diet for 2 weeks. Interventional balloons are adopted to injure their left anterior descending artery endothelium. After the operation, they were fed with high-fat diet for 8 weeks to prepare the coronary heart disease model of phlegm-stasis cementation syndrome in Chinese mini-swine. After the operation, they were administered with drugs for 8 weeks. The SOD activity and MDA content of each group were observed at the 0th week (before the experiment), the 2nd week after the high-fat diet (before the operation or drug administration) , the 6th week after the high-fat diet (4 weeks after the drug administration) and the 10th week after the high-fat diet (8 weeks after the drug administration). Meanwhile, the myocardial enzymogram test and the HE staining pathological observation were performed at the end of the experiment. The changes in the myocardial cell ultra-structure were observed under transmission electron microscope.

RESULTCompared with the normal control group, the model group showed significant decrease in serum SOD activity and notable increase in MDA content from the 2nd week to the end of experiment (P < 0.05 and P < 0.01). In the 10th week, the CK, LDH and CK-MB levels in serum also significantly increased in the model group (P < 0.05 and P < 0.01), with obvious structural abnormality in myocardial tissue pathologic morphology and ultra-structure. Compared with the model group, TYTZ groups showed specific increase in serum SOD activity and oblivious decrease in the MDA level (P < 0.05 or P < 0.01). Meanwhile, TYTZ could significantly decrease serum CK and LDH levels in the model group (P < 0.05 or P < 0.01), attenuate the ischemia injury of myocardial tissue, and improve the ultra-structure of cardiomyocytes.

CONCLUSIONTYTZ shows an obvious protective effect on the myocardial injury in Chinese mini-swine with coronary heart disease of phlegm-stasis cementation syndrome. Its mechanism is related to the resistance against free radical oxidation injury and the inhibition of the lipid per-oxidation.

Animals ; Coronary Artery Disease ; genetics ; metabolism ; prevention & control ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Humans ; Male ; Mucus ; drug effects ; metabolism ; Myocardium ; metabolism ; Protective Agents ; administration & dosage ; Swine ; Swine, Miniature

This paper analyses the defects of bubble oxygen inhalators currently used, and investigates into their solutions for improvement.
Oxygen Inhalation Therapy ; instrumentation ; methods ; Oxygenators ; standards

BACKGROUNDThere have been a lot of studies about surface adhesion molecule (CD44) in recent years, however study on osteopontin (OPN) is still few. The aim of this study is to investigate the levels of OPN and CD44v6 in lung cancer and their correlation.

METHODSOPN and CD44v6 expression were detected in 78 lung cancer tissues by immunohistochemistry.

RESULTSThe positive rate of OPN and CD44v6 expression in non-small cell lung cancer (NSCLC) was 58.46% and 66.15% respectively, but no positive case in small cell lung cancer. The expression of OPN and CD44v6 in NSCLC was closely related to TNM stages (P < 0.01), but not to cell differentiation (P > 0.05). There was a remarkably positive correlation between the expression of OPN and CD44v6 (r=0.255, P < 0.05).

CONCLUSIONSThe co-expression of OPN and CD44v6 may be involved in progression and metastasis of lung cancer. The interrelationship of OPN and CD44v6 was coordinative with development and metastasis of lung cancer. It might be helpful to predict the metastasis and prognosis of NSCLC.

Objective To review the radiological findings of the chondroblastomas on the atypical sites of the skeleton system.Methods We collected the total image data of 13 patients who were pathologically confirmed the chondroblastomas on the atypical sites of the bone system from the department of orthopedics in shanghai No.6 hospital since 1991.Among all the patients,11 cases were male and others were female.The range of age was 10—50 years and the average age of the patients was 26.2 years old.A retrospective analysis of radiological signs from different diagnostic imaging modalities was made.Results X-ray examination was underdone on all case.On the plain X-ray films,all cases were lytic lesions.The radiolucent lesions were seen in 10 cases,mixed density in 3 cases.10 cases manifested expansible contour. Eleven cases were performed computed tomography(CT)examination.On CT,there were visible calcification in 8 cases,sclerotic margin in 10 cases,internal septation in 4 cases.Soft masses could be seen in 3 cases.Magnetic resonance examination(MRI)was done on 5 cases.On T_1 weighted images(T_1WI), the lesion was hypo and intermediate intense signal and heterogeneous hyperintense signal on T_2 weighed images(T_2WI).The fluid-fluid level and solid-fluid level were seen on 3 cases.On one post-contrast examination,the moderate enhancement was seen on the solid portion of the tumor and however,the obvious enhancement on the septation within the lesion.Conclusion The radiological findings of the chondroblastomas on the atypical sites of the bone system were not suggestive.However,it could display some particular signs of the chondroid tumors such as calcification,septation,etc.To effectively apply the different imaging modalities can be helpful to make a right diagnosis before the operation.

Background Choroidal melanoma (CM)is the most common primary intraocular tumor,and brachytherapy is one of the most common therapeutic modality in the treatment of the tumor.However,this irradiation approach has not been evaluated in China. Objective The present study was to analyze the effectiveness and safety of domestic 125I plaque irradiation in the treatment of CM. Methods Forty New Zealand albino rabbits were randomized into 5 groups with 8 rabbits 8 eyes (right eyes) in each group.CM models were established in 16 of 40 New Zealand albino rabbits by implanting the rat B16F10 melanoma cell fragments into the suprachoroidal space of right eyes.After 3 weeks,domestic 125I plaque was fixed at the location of CM in the irradiation group 1,and 8 rabbits with CM served as model control group.The clinical effectiveness of 125I plaque for CM was evaluated based on the fundus examination with indirect ophthalmoscopy,B scan ultrasonography,fundus photographs and color Dopplerimaging.Regarding the safety study,domestic 125I plaque was fixed on the normal right cycs of normal rabbits,while the plaques without 125I seeds were used as the sham group.No intervene was performed in the rabbits of blank group.The number of CD4+,CD8+ T cells in peripheral blood was detected by flow cytometry before plaques implanted and on 3,7,15 and 30 days after the plaque was removed.The animals were sacrificed and the eyes were obtained for histology examination.The use of the experimental animals complied with Statement of ARVO. Results After implantation of B16F10 melanoma cell fragments,CM grew steadily and rapidly with the similar size between irradiation group 1 and model control group ( P =0.550).One week after administration of the treatment,tumor size was(0.31±0.07 )cm in irradiation group 1 and (0.85±0.18 )em in the model control group,with the significant difference between them( P=0.001 ).Two week after application of 125I plaque,the size of tumor was smaller than that before irradiation (P=0.007 ).Histologically,the tumors were mostly limited beneath the pigment epithelial layer with less neovascularization,fibrosis in the tumor was found in some area in the irradiation group when compared with model control group.No significant differences were found in the proportions of CD4+,CD8+ T cells and CD4+/CD8+ at different time points in the irradiation groups of normal eyes and sham group (Fgroup =0.770,8.110,2.230; P=0.380,0.060,0.140; Ftime =0.770,3.220,4.230; P =0.550,0.170,0.004 ).Chronic inflammatory cells infiltration cornea,subconjunctival epithelial and selera surface,but sclera had no necrosis and organization.Conclusions These results suggest that domestic 125I plaque irradiation is effective for the treatment of CM,and has limited side effects on normal rabbits.

OBJECTIVETo explore the mechanism of hypoxic environment lessening in the course of scar maturation.

METHODSThe expression of hypoxia inducible factor 1alpha (HIF-1alpha) and p53 in granulation of burn wound, burn scars of different stages, and normal skin was detected with immunohistochemical staining. The expressions were quantified by the weight method. The relationship between HIF-1alpha and p53 was investigated.

RESULTSWith the scar maturation, the expression of HIF-1alpha gradually decreased while the expression of p53 gradually increased within one year. There was a negative correlation between HIF-1alpha and p53 (P < 0.01).

CONCLUSIONp53 plays an important role in scar maturation. Associated with p53, HIF-1alpha may induce apoptosis, which decreases oxygen consumption and lightens hypoxia in the scar maturation.

Adolescent ; Adult ; Apoptosis ; Cell Hypoxia ; Child ; Cicatrix ; metabolism ; pathology ; Female ; Humans ; Hypoxia ; metabolism ; pathology ; Hypoxia-Inducible Factor 1, alpha Subunit ; metabolism ; Male ; Tumor Suppressor Protein p53 ; metabolism ; Young Adult