Acupuncture Therapy ; instrumentation ; Adolescent ; Adult ; Aged ; Facial Paralysis ; therapy ; Female ; Humans ; Male ; Middle Aged ; Young Adult

Objective To investigate temporal expression of estrogen receptor (ER) in myocardium at non-infarct zone after acute myocardial infarction (AMI) in rats. Methods 120 healthy, male SD rats were randomly divided into three groups: control group, left anterior descending coronary artery (LAD) occlusion group and sham operation group with 8 rats in each group. The murine AMI-model was established by LAD ligation after anesthetization, and the rats in both LAD occlusion group and sham operation group were sacrificed at 2h, 4h, 8h, 12h, 1d, 2d, 4d, and 9d after occlusion. Myocardial samples were collected. H.E and ER immunohistochemical staining were performed. The results were quantitatively evaluated by image analysis system. The data were statistically analyzed with SPSS for Windows. Results ER expression in non-ischemic cardiomyocytes after LAD occlusion became more prominent with extension of LAD occlusion period. There was no significant difference within 12h after AMI, while ER expression was enhanced significantly 24h after ischemia. The enhancement were more evident from 4 to 9 days. Conclusion The results suggested that protective role may be initiated in response to acute ischemia in cardiac cells at non-infarct zone by increased ER expression after LAD occlusion in rats.

The main fields and trends of research on anti-inflammation and immunopharmacology were reviewed as: signal transduction pathways as target for therapy, cytokine regulating network, new types of immunotherapy, new mechanisms of anti-inflammation drugs, the mechanisms and inductive methods of immune tolerance and the development of natural immune system.

ObjectiveTo detect the association between schizophrenia and polymorphism of phosphoserine aminotransferase 1 ( PSAT1 ) gene.MethodsThe study group included 158 patients with schizophrenia from Xi' an Mental Health Center and the control group included 316 parents.The polymorphism of rs69287125,rs137824326 of phosphoserine aminotransferase 1 gene was detected with PCR methods and SNP typing in all nucleus families by correlation analysis and haplotype relative risk analysis.ResultsThe rs69287125 allele was associated with schizophrenia (P=0.011 ),the G allele was protective factor (Z =-2.31 ) and the A allele was hazarding factor (Z =2.31 ).The rs137824326 allele was associated with schizophrenia (P=0.007 ),the G allele was protective factor ( Z =- 2.54) and the A allele was the hazarding factor( Z =2.54).The haplotypes of A/A and G/G in the rs69287125-rs137824326 were associated with schizophrenia (P =0.021,0.015,Z =2.16,- 1.85).ConclusionThe polymorphism of phosphoserine aminotransferase 1 gene is associated with schizophrenia in Chinese.

BACKGROUND: Previous studies showed that the prevalence and extent of carotid artery stenosis increased with thedevelopment of coronary artery disease. There was a higher incidence of intracranial small-vessel disease, but lower of carotid artery disease in the Chinese stroke patients as compared with the white.OBJ ECTIVE: To observe the distribution of carotid and intracranial artery stenosis in patients with 3-vessel coronary artery disease.DESIGN: An observational study.SETTING: Department of Neurology; Heart Center, Beijing Chaoyang Hospital affiliated to Capital Medical University.PARTICIPANTS: From August 2003 to August 2004, The coronary angiography was performed in the outpatients and inpatients suspected to be coronary arteriosclerotic cardiopathy in the Department of Neurology, Beijing Chaoyang Hospital affiliated to Capital Medical University, and 126 patients of them with 3-vessel diseases were examined with carotid arteriography, including 56 males and 70 females, 47-76 years of age. Informed contents were obtained from all the participants.METHODS: Digital substraction angiography (DSA) was performed immediately after coronary angiography in the 126patients. All catheterizations were performed through a transfemoral approach using the Seldinger technique, and thenan appropriate amount of nonionic Ominipaque was injected. The angiography of bilateral carotid arteries, subclavian artery, or vertebral artery was taken from different angles. The percentage of stenosis was calculated directly from DSAmachine. Evaluative standards: Based on the stenosis degree from carotid angiography results, the patients were divided into 5 categories as normal, mild stenosis, moderate stenosis, severe stenosis and complete occlusion.MAIN OUTCOME MEASURES: Severity of carotid stenosis.RESULTS: All the 126 patients were involved in the final analysis of results. There were 13 (10.32%), 18 (14.29%), 12(9.5%), or 10 (7.9%) patients found to have mild, moderate, severe carotid stenosis, or complete occlusion, and the incidences of these changes were fairly similar. However, the incidence of angiographic carotid stenosis coupled with 3-vessel carotid artery disease was 42.06%.CONCLUSION: The prevalence of carotid stenosis in patients with 3-vessel carotid artery disease was as high in the Chinese population as that in Westem countries. In patients with 3-vessel disease, the prevalence of carotid stenosis was higher than that of intracranial artery stenosis, thus they may require both coronary and carotid interventions.

Objective To study lymph node micrometastasis in N0 colorectal cancer patients and its clinical significance. Methods In this study, 548 lymph nodes obtained from 62 cases of No colorectal cancer undergoing curative operation were examined by fluorescent quantity polymerase chain reaction assay for the expression of cytokeratin 20 (CK20) mRNA. Results Micrometastasis was detected in 55 lymph nodes (10.0% ) of 24 cases (39%). According to lymph node anatomical locations, micrometastasis was identified in 15. 8%, 5.0% and 3.3% lymph nodes in group Ⅰ ,Ⅱ and Ⅲ (grouped by the distance from the tumor), respectively. Micrometastasis was correlated with invasion depth of primary tumor, but was notrelated to gender, age, tumor size, tumor site and differentiation. Conclusions The expression of CK20mRNA in lymph nodes in patients with No coloreetal cancer could be used to improve the accuracy of clinical staging, and provide information for rational adjuvant therapy.

OBJECTIVETo obtain a comprehensive understanding of the effect of the improvement of fixation strength of a newly designed expansive pedicle screw through biomechanical analyses.

METHODS100 (200 pedicles) fresh calf lumber vertebrae were used. A total of four instrumentation systems were tested including CDH (CD Horizon), USS (Universal Spine System pedicle screw), Tenor (Sofamor Denek) and expansive pedicle screw (EPS). Pullout and turning-back tests were performed to compare the holding strength of the expansive pedicle screw with conventional screws, i.e. USS, CDH and Tenor. Revision tests were performed to evaluate the mechanical properties of the expansive pedicle screw as a "rescue" revision screw. A fatigue simulation using perpendicular load up to 1,500,000 cycles was carried out.

RESULTSThe turning back torque (Tmax) and pull-out force (Fmax) of EPS were significantly greater than those of USS, Tenor and CDH screws (6.5 mm x 40 mm). In revision tests, the Fmax of both kinds of EPS (6.5 mm x 40 mm; 7.0 mm x 40 mm) were greater than that of CDH, USS and Tenor screws significantly (P<0.05). No screws were broken or bent at the end of fatigue tests.

CONCLUSIONSEPS can significantly improve the bone purchase and the pull-out strength compared to USS, Tenor and CDH screws with similar dimensions before and after failure simulation. The fatigue characteristic of EPS is similar to that of CDH, USS and Tenor screws.

Animals ; Biomechanical Phenomena ; Bone Screws ; Cattle ; Equipment Failure Analysis ; Evaluation Studies as Topic ; Internal Fixators ; Lumbar Vertebrae ; surgery ; Materials Testing ; Spinal Fusion ; instrumentation ; Tensile Strength

Objective To investigate a method of repairing complex tissue defects one stage in one finger or several fingers for more fine recipient site repairing and less donor area traum. Methods From August 2007 to August 2010,eight cases of 20 fingers were reconstructed according to the state of complex tissue defects in a hand,second toes (right or left side) were split into two or three parts as complex tissue flaps that may including joints,tendons,skin,nail beds,et al.These flaps then were translated to hand to repair complex tissue defects by anastomosing vessels.Results Twenty fingers in 8 cases were successfully reconstructed.Follow-up ranged from 3 months to 36 months,external appearance were fine.According to the Trial Evaluation Standard of Reconstructed Finger Function of Handsurgery Society of China,sixteen fingers were excellent,three fingers were good,one finger was fine.And there was no effect on foot.Conclusion Spliting single second toe is a good method for repairing more complex tissue defects in a hand.

Objective To review the clinical characteristics of paraganglioma of the urinary bladder with 5 cases reprt.Methods The clinical data of 5 patients (2 males and 3 females,age 23-68 years)with paraganglioma of the urinary bladder were reported.Two cases were diagnosed by ultrasonography during health examination,1 case was found by hematuria,1 had difficulty of voiding,and 1 presented with palpitation,chest discomfort while urination.Two cases were clinical diagnosed as bladder paraganglioma,1case urachal carcinoma,and 2 cases bladder tumor.Cystoscopy showed a protruding tumor within the bladder or bladder had compressed changes.One case of tumor located in the triangle,1 in the posterior wall,1in the top,2 in the anterior wall.Three cases of biopsy were negative.Three cases of preoperative endocrine examinations showed norepinephrine significantly higher.Results Laparoscopic partial cystectomy was performed in 3 cases,open partial cystectomy in 1 case,and transurethral resection of bladder tumor (TURBT) in 1 case.One case had the complication of stress cardiomyopathy during TURBT,3 cases found intraoperative hypertensive crisis.The bleeding volume was 20-800 ml (average 126 ml),and I case received blood transfusion.During the follow-up period for 3-48 months,the blood pressure was normal,and no recurrence was found.Conclusions Bladder paraganglioma is uncommon and easily misdiagnosed.For the patients with bladder tumor,accompanied by changes in blood pressure,palpitations during urination should be highly suspicious of bladder paraganglioma.Partial cystectomy is the main treatment method.

Objective To evaluate the values of different methods in breast cancer screening using receiver operating characteristic (ROC)curve analysis,and to suggest a appropriate model for female breast cancer screening in rural areas. Methods After questionnaire investigation and clinical examination,breast ultrasound and X -ray mammography were performed in the high risk group.Sensitivity and specificity of clinical examination, breast ultrasound, X -ray mammography and comprehensive examination were evaluated by ROC curves.Results There were 31 pathologically diagnosed cases among the 23,910 screening women.The detection rate of breast cancer was 129.65 /100,000.The sensitivity,specificity and the area under the ROC curves was 90.323,94.604 and 0.954 respectively for comprehensive examination,and 70.968,90.288 and 0.814 respectively for ultrasound examination,and 74.194,91.727 and 0.850 respectively for mammography examination,and 41.935,82.734 and 0.676 respectively for clinical examination.After Z test,comprehensive examination was better than other methods (P <0.05)and there was no significant difference between breast ultrasound and X -ray mammography (P >0.05).Conclusion Both ultrasound and X -ray mammography are the effective methods in breast cancer screening.The comprehensive examination could significantly improve the diagnostic capabilities of breast cancer.