Objective To investigate the psycho-social factors related to functional gastrointestinal disorders (FGD).Methods Using Eysenck personality questionnaire (EPQ), Coping styles questionnaire (CSQ), Life events scale (LES) and Social support rating scale (SSRS) to study psycho-social factors in FGD patients. The results were compared with normal controls.Results The number of FGD patients who possessed introversion and neurosis personality was significant higher than the controls (P

Objective To examine the changes in the difference between the target and actually measured plasma concentrations of propofol administered by target-controlled infusion (TCI) during the three phases (preanhepatic, anhepatic, neohepatic) of orthotopic liver transplantation. Methods Ten ASA Ⅲ-Ⅳ patients aged 30-54 yr, weighing 56-79 kg undergoing orthotopic liver transplantation were enrolled in the study. The patients were unpremedicated. Radial artery was cannulatecl and Swan-Ganz catheter was placed via right internal jugular vein. BP, ECG, SpO2 , PCT CO2, PAP, PCWP, body temperature and blood gases, electrolytes and glucose were monitored during operation. Anesthesia was induced with scopolamine 0.6 mg, midazolam 0.05 mg ? kg , etomidate 0.2 mg ? kg-1 , fentanyl 5 ?g ? kg-1 and rocuronium 0.6 mg ? kg -1 . Propofol was given with the TCI system after induction. Target plasma propofol concentration was set at 0.5 ?g ? ml -1 which was maintained during operation. Arterial blood samples were taken after equilibrium between plasma and effect site concentrations had been reached and during the three phases of orthotopic liver transplantation. Plasma propofol concentration was measured by high-performance liquid chromatography with fluorescence detection. Results One patient was excluded from data analysis because TCI propofol was stopped during operation. The average measured plasma propofol concentration in the nine patients were significantly higher during anhepatic phase than those during preanhepatic and neohepatic phases ( P

Objective To explore the relationship between the genetic polymorphism and serum concentration of mannan binding lectin (MBL)and the clinical manifestation of the hand-foot-mouth disease (HFMD) children infection by human enterovirus 71 (HEV71).Methods One hundred and thirty-eight children diagnosed as HFMD infected by HEV71 (including 80 mild cases and 58 severe cases) and 40 healthy,symptom-free children were investigated.The concentrations of serum MBL were measured in 40 healthy controls,80 mild HFMD cases and 56 severe HFMD cases at both acute and convalescent phases by a sandwich enzyme immunoassay with a human MBL ELISA kit.And the genomic DNA of all cases were extracted from blood according to standard phenol-chloroform procedure.Six SNPs in the MBL gene(-550G/C,-221G/C and +4C/T of the promoter,CGT52TGT,GGC54GAC,and GGA57GAA of the exon 1) were analyzed by a sequencing-based typing method.Results The MBL serum level of the severe HFMD circulatory respiratory failure group in acute phase was significantly increased compared with severe HFMD encephalitis group,the mild cases and the control,but in the convalescence phase it significantly decreased compared with them.The frequencis of type B/B mutation (+230 of the exon 1),type P/P mutation (+4C/T of the promoter),and type H/H mutation (-550G/C of the promoter) were a significant difference among mild group,severe group and the control(P=0.006,0.043,0.028,respectively).The frequencies of LYPB/LYPB genotype and HYPA/HYPA genotype were a significant difference among mild group,severe groupand the control (P=0.028,0.014,respectively).Conclusion Low MBL protein level as a result genetic polymorphism seems to be correlative with clinical manifestation of HFMD disease.The MBL gene mutation and low MBI.protein level may be used as one of the evaluation method of HFMD severeity.

AIM: To explore the effect of receptor tyrosine kinase system mediated by phosphotyrosine phosphatase (PTP) on tau phosphorylation in rat hippocampus. METHODS: Pervanadate (PVN), inhibitor of PTP or inhibitor of glycogen synthase kinase-3 (GSK-3), LiCl were injected into rat hippocampus by stereotaxy technique. The level of tau phosphorylation was detected by Western blot and immunohistochemistry after 24 h of injection. RESULTS: PVN significantly inhibited tau phosphorylation at PHF-1 epitope and the inhibition of tau phosphorylation by PVN was stronger than that of LiCl (P

Objective:To analyze the reasons of early failure of the PHILOS in proximal humerus frac-tures.Methods:From Nov.2010 to Nov.2014,there were 117 patients with humerus fractures treated with PHILOS locking plate in Department of Orthopaedics,Xuanwu Hospital.All of the patients were treated with the plate by open reduction internal fixation,and we analyzed these cases retrospectively. After the operation,we removed the drainage tube within 48 h,and the patients were allowed to do the passive motion 3 days after the surgery if the X-Ray showed the plate and screws were reliable.Eight ca-ses failed within 4 weeks after the operation.We analyzed the reasons of the failure.Results:The rate of the failed cases was 6.83%(8 /117).The average age was 72.4(66 -82)years.In the 8 failed cases, 3 were on the right side,and the other 5 on the left side.As for the reason of the fractures,2 cases were because of car accidents,and the other 6 because of daily life injury.According to the Neer classifica-tion,3 cases were 2-part fractures,and the other 5 3-part fractures.Three cases were total failure,and the other 5 partial failure.All the 8 failed cases failed within 4 weeks after the operation,of which 1 was on the sixth day after surgery,the other 7 2 to 4 weeks after the surgery.The 3 totally failed cases were treated by removing the screws and plates,the other 5 by conservative methods.All of the cases were malunion at the end.Conclusion:The early failure of the PHILOS locking plate in proximal humerus fractures is related to the bad reduction during the operation,the loss of medial cortex support,the limi-tation of screw length,the osteoporosis and the improper rehabilitation after operation.It is very important to do good preoperative plan for a surgeon.During the operation,we should try our best in the fracture reduction,use the appropriate plate and screws,and then pay attention to the rehabilitation after the operation.After all of this,the rate of failure may be decreased.

Objective: To observe curative effect of radiofrequency catheter ablation (RFCA) and changes of cardiac function and left atrial diameter after operation in patients with atrial fibrillation (AF). Methods: A total of 28 AF patients with obvious clinical symptoms and without effective for drug therapy received RFCA in our hospital, their data were retrospectively analyzed. They received RFCA under guidance of three dimensional electro-anatomic mapping (EAM) system. Changes of cardiac function and left atrial diameter were evaluated by echocardiography and curative effect was evaluated by ambulary blood pressure monitoring before, three and six months after operation. Results: Pulmonary vein isolation rate was 100% in all patients. No severe complication occurred during or after operation. After six-month follow-up, 27 cases（96.4%）did not recur AF among the 28 patients; Compared with before operation, there were significant decrease in left atrial diameter [(37.3±4.8) mm vs. (33.6±4.5) mm] and significant increase in left ventricular ejection fraction [(59.8±8.7) % vs. (64.2±6.8) %] by echocardiography, P<0.05 both. Conclusion: Radiofrequency catheter ablation is safe and effective in treatment of atrial fibrillation, and there are significant improvements in cardiac function and left atrial diameter.

Objective To evaluate the treatment of radial head fracture of different type. Methods The clinical data of 80 radial head fracture cases from November, 1999 to December,2009 were collected and analyzed retrospectively. Among the 80 cases,12 cases received conservative treatment( all type Mason Ⅰ ) ;48 cases received open reduction internal fixation (ORIF) (4 case type Mason Ⅰ ,15 cases type Mason Ⅱ ,24 cases type Mason Ⅲ,5 cases type Mason Ⅳ ); 12 cases received removing radial head ( 4 cases type Mason Ⅲ and 8 cases type Ⅳ ).8 cases received artificial joint replacement ( 8 cases type Mason Ⅳ ). Results All cases were followed up for 1.0 -4. 1 years. According to the Mayo Elbow Performance Index, the excellent and good rate of treatment in nonoperative,ORIF,excision of the radial head as well as artificial joint replacement was 83.3 % (10/12) ,87.5 %(42/48) ,75.0% (9/12) and 100. 0% (8/8) ,respectively. Conclusions Conservative treatment can be selected for type Mason Ⅰ ;Open reduction and internal fixation can be selected for type Mason Ⅱ , type Mason Ⅲ and part of type Mason Ⅳ. The excision of radial head or mental prosthesis replacement is alternative for type Mason Ⅳ for those can not be treated with open reduction and internal fixation.

BACKGROUND:Bone marrow stem cell transplantation can improve heart function and prevent ventricle remodeling.At present,the adult bone marrow stem cells used for transplantation primarily included bone marrow mononuclear cells (BM-MNCs) and mesenchymal stem cells (MSCs),and endothelial progenitor cells.The curative effects and precise mechanisms of transplantation of various bone marrow stem cells remain unknown.OBJECTIVE:To compare the effects of transplantation of autologous BM-MNCs and MSCs via the coronary artery on ventricle remodeling subsequent to acute myocardial infarction (AMI). DESIGN,TIME AND SETTING:Randomized controlled animal experiment performed at the Center for Clinical Research,Hebei Provincial People's Hospital,Electron Microscope Room,Hebei Medical University between March 2005 and December 2006.MATERIALS:Thirty-six male Jizhong pigs,were randomly divided into 4 groups:control group (n = 6),infarct model group (n = 10),BM-MNC group (n = 10),and MSC group (n = 10).METHODS:Porcine autologous BM-MNCs were isolated by gradient density centrifugation,and MSCs were obtained by adherence method.Prior to transplantation,both BM-MNCs and MSCs were colloidal gold labeled.Except the infract model group,pigs in the other 3 groups were developed into AMI models by oppressing the left anterior descending branch with balloon catheter.Ninety minutes after modeling,(6.0±1.3)×107 autologous BM-MNCs and (4.5±2.1)x 107 MSCs were respectively transplanted into pigs in the BM-MNC group and the MSC group via the coronary artery and cultured for 28 days.MAIN OUTCOME MEASURES:Observation of pathological changes of cardiac muscle tissue by light and electron microscope;Examination of cardiac function by ultrasonograph;Detection of the number of blood vessels and apoptotic myocardial cells,and expression of nuclear factor-κB (NF-κB) and troponin Ⅰ and its correlation to cardiac function by immunohistochemistry;Detection of mRNA expression of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) in the cardiac tissue as well as its correlation to cardiac function by reverse transcription-polymerase chain reaction (RT-PCR).RESULTS:In the MSC group,there was proliferation of a great deal of blood vessels as well as growth of abnormal cell masses around the coronary vessels,while the BM-MNC group exhibited the "budding" of many capillary vessels.Prior to transplantation,cardiac function indices were basically similar among each group (F = 1.550,P＞0.05).Twenty-eight days after transplantation,left ventricular ejection fraction was significantly lower in the control,BM-MNC,and MSC groups than in the infarct model group (F = 5.30,P＜0.05),while endocardial fractional shortening was significantly higher (F = 10.67,P＜0.01).Compared with the infarct model group,the number of blood vessels in the infarct zone and infarct border zone was increased in the BM-MNC group (F=29.56-34.87,P＜0.01) and had no apparent change in the MSC group.In the BM-MNC and MSC groups,apoptotic myocardial cells in the infarct zone and infarct border zone were significantly reduced (F=14.31-35.34,P＜0.01 ) and troponin I expression rate was significantly increased (F=19.05,P＜0.01 ),as compared with the infarct model group.In addition,NF-κB positive rate in the infarct border zone was significantly lower in the BM-MNC and MSC groups than in the infarct model group (F=19.05,P＜0.01).VEGF gene expression level in the infarct border zone was significandy higher in the BM-MNC group than in the infarct model group and MSC group (F = 49.41,P＜0.01).bFGF gene expression level in the infarct border zone was significantly higher in the MSC group than in the infarct model and BM-MNC groups (F=4.71,P＜0.01).LVEF was negatively correlated to myocardial cell apoptosis rate and NF-κB level (r=-0.441 1,P＜0.05;r=-0.579 6,P＜0.01 ).LVEF was positively correlated to number of blood vessels,VEGF and bFGF expression (r=0.775,P＜0.01;r=0.565 1,P＜0.05;r=0.573 5,P＜0.05).CONCLUSION:Transplantation of both autologous BM-MNC and MSC via coronary artery can improve the condition of left ventricular remodeling subsequent to myocardial infarction.The improvement of cardiac functions is related to the increase of blood vessels,VEGF and bFGF expression,the decrease of myocardial cell apoptosis and NF-κ B level in cardiac muscle tissues after stem cell transplantation.BM-MNC transplantation better promotes blood vessel proliferation and VEGF expression in the cardiac tissue but produces worse effects on bFGF gene expression than MSC transplantation.

Total hip arthroplasty is currently an important surgical method for the treatment of hip diseases. The modular design of the head and neck taper facilitates the adjustment of limb length and femoral offset during surgery, however, complications such as wear, corrosion and looseness of the modular interface are also inevitable old problems. In recent years, with the changes in the design of prostheses, the trend that patients becomes younger and active, and the development of minimally invasive surgery, taper corrosion has again become a problem that needs to be solved and cannot be ignored, which is causing the attention of joint surgeons. There have been many studies on the complications associated with metal-on-metal prosthesis modular interfaces, such as increased metal ion level, taper corrosion and adverse local tissue reactions, while there are few studies on the complications of metal-on-polyethylene total hip arthroplasty, and metal-on-polyethylene prosthesis has similar problems such as increased local metal ion level and adverse tissue reactions caused by taper corrosion, which may also lead to complications such as prosthesis loosening, dislocation and fracture. Currently there are few reports about head and neck taper corrosion of metal-on-polyethylene prosthesis in China and there are still controversies about its manifestation and mechanism. In this paper, we summarized the above problems through literature reviewto expound the concept, research history, assessment methods, and incidence of metal-on-polyethylene prosthesistaper corrosion and the effect of material composition, diameter of the metal head, neck length, femoral offset, geometry of the taper, surgical factors, in vivo time, and patient factors on taper corrosion are analyzed. In summary, there are still many problems in the researches about the specific forming mechanism that have not been solved, thus it is very important for the prevention of taper corrosion: choosing the same material or ceramic material, avoiding overlarge diameter of the femoral head and femoral offset, avoiding too small taper degree, paying attention to the strength of tapping and cleaning of the taper are the current viable options.

Objective To explore application of our self-designed U-shaped transdermal surgical navigator based on three-dimensional reverse design in cannulated screwing for femoral neck fracture Methods A retrospective study was done of 5 patients with femoral neck fracture who had been treated from August 2016 to March 2017.They were 3 men and 2 women,aged from 33 to 60 years (average,46.5 years).Thin layer CT scanning was conducted on the patients' affected hip (at the left side in 2 cases and at the right side in 3).Based on their CT data,3D design software and 3D printing technique were used to manufacture the U-shaped transdermal surgical navigator and a real-sized model of the fracture.Operations were simulated using the U-shaped transdermal surgical navigator on the fracture model to determine the angle,depth and location of the screwing.Fixation of the fracture with cannulated screws was conducted after confirmation of satisfactory surgical parameters.The postoperative X-ray films of the patients were reviewed.Evaluations were conducted of the screw position,operating time,volume of operative bleeding,and number of intraoperative X-ray shots.Results The screw positions in the 5 patients were consistent with their preoperative design.Four patients had only one shot of fluoroscopy and one patient 3 shots.Their operating time ranged from 15 to 30 minutes,averaging 22.5 minutes;their bleeding ranged from 5 to 10 mL,averaging 7.5 mL.The 5 patients were followed up for an average of 4.5 months (from 3 to 6 months).By the Harris scoring at their final follow-ups,one was excellent,3 good and one fair.No complications like pain,functional impairment of the joint,or collapse or necrosis of the femoral head occurred during the follow-up.Conclusions Our self-designed U-shaped transdermal surgical navigator based on three-dimensional reverse design can significandy improve the accuracy and safety of the cannulated screwing for femoral neck fractures.The operation is minimally invasive,reducing operating time and intraoperative blood loss.