Objective To investigate the effect of autologous transplantation of circulating endothelial progenitor cells (EPCs) on oleic acid-induced acute lung injury (ALI) in rabbits. Methods Thirty New Zealand long ear rabbits weighing 1.8-2.0 kg were randomly divided into 2 groups ( n = 15 each): normal saline group (group NS) and EPC group. ALI was induced by iv oleic acid 80 mg/kg. EPC (106/200 μl) or equal volume of normal saline (NS) was administered iv at 4 h after iv oleic acid injection. Arterial blood samples were obtained before (T0) and at 4, 8, 12, 24 and 48 h (T1-5) after oleic acid injection for blood gas analysis and determination of serum vascular endothelial growth factor (VEGF) concentration. The animals were then scrificed (at T5 ) and the lungs were removed for microscopic examination and determination of W/D lung weight ratio, Pulmonary infiltration of PMN and non-PMN was counted and hyaline membrane formation and hemorrhage were examined. Results PaO2/FaO2 ratio and serum VEGF concentration were significantly higher in group EPC than in group NS. Infiltration of leukocytes in the lung was significantly reduced by EPC transplantation. EPC also decreased lung water content, hyaline membrane formation and hemorrhage in the lungs. Conclusion Autologous transplantation of circulating EPC can ameliorate oleic acid-induced acute lung injury in rabbits.

BACKGROUND: For the purpose of keeping the merits of traditional actual cautery, we improved traditional actual cautery and developed a pistollike electrocautery which has the function of heating and spraying oilpreparation (it has been issued national patent, patent number: 17634; patent number of medical electrocautery: 872106187). OBJECTIVE: To observe the effect of unique electrocautery of traditional Chinese medicine (TCM) on treating chronic tonsillitis as compared with cautery.DESIGN: Random sampling and case-controlled study.SETTING: Department of Otolaryngology, Affiliated Hospital of Liaoning College of Traditional Chinese Medicine; Surgical Department of Liaoning Oncology Hospital.PARTICIPANTS: Totally 80 patients with hypertrophy of tonsil were selected from the Department of Otolaryngology of the Affiliated Hospital of Liaoning College of Traditional Chinese Medicine in 1989. Inclusion criteria: degrees Ⅱ and Ⅲ of tonsil hypertrophy, without other serious cardiovascular and cerebral diseases, and consent. Exclusion criteria: attempted cauterization, cease of treatment, incomplete case history having complication, and not acceptance. Totally 40 patients were coincidence with the criteria including 22 males and 18 females aged from 5 to 40 years.METHODS: Mild and potent cauterization was adopted according to whether there was chronic congestion in tonsil. For patients with degree Ⅲ of tonsil hypertrophy without obvious congestion, potent cauterization with large size cautery was adopted at 700-800 ℃, if with chronic congestion,potent cauterization with large or middle size cautery at 500-600 ℃ and mild cauterization was adopted; For patients with degree Ⅱ of hypertrophy of tonsil without obvious congestion, potent cauterization with middle size cautery was adopted at 700-800 ℃, if with chronic congestion, mild cauterization with middle or small size cautery was adopted at 500-600 ℃; for patient with first degree of hypertrophy of tonsil without obvious congestion, potent cauterization with small size cautery was adopted at 600-700 ℃, if with chronic congestion, mild cauterization with small size cautery was used at 500 ℃. Cauterization of TCM was not of rather good therapeutic effect on degree Ⅰ of tonsil hypertrophy than on degrees Ⅱ and Ⅲ of hypertrophy of tonsil. Regardless of which degree of hypertrophy of tonsil and congestion, mild cauterization should be adopted at low degree of heat if there was pain radiating to the ear region or pharyngopalatine arch becoming surface-like structure. The average interval between each cauterization was 2-3 days.MAIN OUTCOME MEASURES: Size of tonsil and histological changes of patients with degrees of Ⅱ and Ⅲll tonsil hypertrophy after cauterization.RESULTS: Totally 40 patients with degrees Ⅱ and Ⅲ of tonsil hypertrophy were treated with cautery without any loss. ① Tissues were thickened after each cautery, 38 cases received only 4-10 times of cauterization, and half of the total number of the patients received 7-8 times of cauterization (9/22.5%, 9/22.5%). ② Electrocautery could reduce course of treatment to 1/4 of that of actual cautery. Degree of hypertrophy of tonsil was of no direct ratio to cauterizing times in that 22 patients with degree Ⅱ of hypertrophy of tonsil received 4-10 times of cauterization; while 18 cases of patients with degree Ⅲ of hypertrophy, 2 patients received 13 times of cauterization, the other received 7-10 times of cauterization. ③ A patch of black and brown cauterized scab was formed after each electrocautery on the surface of tonsil; superfical layer was of faveolate structure with different sized eosin dyed mesh; the deep layer was of dull grey oblique and interdigitating cord like structure with necrotic tissues without being dyed and survival lymphocyte in the space between cord, the lymphocyte had the changes of karyo pyknosis and nuclear fragmentation or disappearing of red dyed nuclear. Compared with actual cautery, cauterization of necrotic layer was obviously thickening and easy to exfoliate in electrocautery of TCM. ④ After 24 hours of cauterization, necrotic tissues migrated to normal lymphatic area presented with such inflammatory changes as vascular dilation, widening of lymphocyte space and infiltration of neutrophil. The degrees of above mentioned changes between electrocautery of TCM and actual cautery achieve no significant difference and the inflammatory changes disappeared in 4-5 days.CONCLUSION: Because of high temperature, few cauterized times and short course, electrocautery of TCM has a remarkable effect on degrees Ⅱ and Ⅲ of tonsil hypertrophy; however, various textures, degrees of hyperemia, ages and co-operations can cause different cauterized times.

History, 20th Century ; History, 21st Century ; Periodontics ; history

Objective To explore the microtraumatic treatment for obstructive renal dysfunction caused by upper urinary stones. Methods A total of 43 cases of obstructive renal dysfunction caused by upper urinary stones was treated with microtraumatic treatment from August 1998 to December 2005.The treatment included ureteroscopic pneumatic lithotripsy, ureteroscopic double-J catheter placement followed by extracorporeal shock wave lithotripsy(ESWL),percutaneous nephrolithotomy,and primary percutaneous nephrostomy followed by ureteroscopic lithotripsy,or ESWL,or stone removal through the fistula.Results The operation time was 23~150 min(mean, 47 min) and the hospitalization time was 3~20 d(mean,7.2 d).Renal functions recovered to normal within 2 weeks ~ 3 months after operation in 29 cases;different degrees of azotemia remained 3 months after operation in 12 cases,their renal functions were improved significantly,with the serum creatinine levels decreased from 712.4 ?mol/L(326~2882.7 ?mol/L) preoperatively to 294.6 ?mol/L(173~532 ?mol/L) postoperatively;uremia remained in the rest of 2 cases and a long-term dialysis was required.The stone clearance rate was 88%(38/43).Follow-up checkups in the 43 cases for 3 months ~ 5 years(mean,1.5 years) found no death or pyonephrosis.The mean serum creatinine was 186.2 ?mol/L(39.9~933.1 ?mol/L).Recurrence occurred in 9 cases.Conclusions Microtraumatic treatment has advantages of minimal trauma,good tolerance of patients,and satisfactory safety for treating obstructive renal dysfunction caused by upper urinary stones.Different microtraumatic methods can be selected according to patient's condition.

Objective:To evaluate construct validity of China residents health literacy questionnaire and explore the application of confirmative factor analysis(CFA)in health literacy measurements.Methods:CFA was performed on dimension of basic healthy skills in the questionnaire.Latent variable scores and comprehensive score based on factor variance weight were calculated.Comparison among the latent variable scores,comprehensive scores and proportion of knowing was conducted via GLM or Logistic model.Results:Two factors named general capacity and emergency capacity were well fitted(?2=12.12,P=0.356,IFI=0.998,TLI=0.996,RMSEA=0.007).According to comprehensive score the sample qualification rate of basic health literacy was 38.5%(785/2 040),much similar to 38.2%(780/2 040)which is calculated by original item scores.Latent variable score or comprehensive score has more statistical power than that of proportion of knowing in multivariate analysis.Conclusion:CFA is a useful tool and valuable for applying in the field of health literacy measurement and analysis.

Objective To investigate the clinical value of the variety of serum levels of soL-CXCL16 and NT-proBNP peripercutaneous coronary intervention(PCI) in patients with acute myocardial infarction (AMI).Methods A total of 77 cases received PCI were selected to research group.And the contemporaneous 30 healthy persons were chosen to control group.The serum levels of soL-CXCL16,NT-proBNP and cTnT were detected by ELISA.The relationships of soL-CXCL16 and NT-proBNP to cTnT were detected by Pearson linear correlation analysis.Results Compared to pre-PCI,the serum levels of CXCL16 were rising to the peak point at 0.5 h post-PCI,and were decreasing from 2.0 h post-PCI,then the serum levels of CXCL16 were declining to the levels of pre-PCI at 24.0 h post-PCI (P＜0.05).And the serum levels of NT-proBNP were rising from 0.5 h post-PCI,and the peak point was at 24.0 h post-PCI (P＜0.05).The postive relationships of the serum levels of CXCL16 and NT-proBNP to the serum levels of cTnT were confirmed by Pearson linear correlation analysis(P＜0.01).Conclusion Monitoring of soL-CXCL16 and NT-proBNP for patients with percutaneous coronary stenting could provide foundation for prognosis evaluation of PCI.

Objective To describe the echocardiographic and clinical findings of patients with accessory mitral valve(AMV).Methods Four adult patients were diagnosed to have AMV by Doppler echocardiography.Results All the four patients had cardiac murmur but 2 were asymptomatic.Echocardiogram showed that two cases had isolated AMV with significant left ventricular outflow tract (LVOT)obstruction.Another patient was complicated by idiopathic hypertrophic subaortic stenosis and his systolic pressure gradient across the LVOT reduced to normal after taking negative inotropic drugs.The fourth patient was associated with complex congenital cardiac anomalies but without LVOT obstruction.Conclusions AMV may not be very rare as previously reported.An echocardiographic examination Can detect AMV and difierentiate it from other causes of LVOT obstruction.

Objectives To study the survival,growth and function restoration of fetal ovary allo transplant. Methods Murine fetal ovaries were grafted subcutaneously and under renal capsule to spayed adult female rats.On day 5,10,25-35,beyond 35 after transplantation,the grafts were removed and underwent histological and histochemical examination. Serum estrodiol and progesterone levels were determined. Results It can be divided three periods according the HE staining:On the day 5 of transplantation, there were many blood cells in the graft.On day 10,there were a lot of primordial and primary follicles in ovarian cortex of the graft.On day 25 and later,there were follicles in different developing stages, corpora luteas and interstitial glands in the graft.The positive reaction of 3-β-HSDH and oil red O and the results of serum estrodiol and progesterone showed that transplanted fetal ovary restored secreting function. Conclusions Fetal ovary allotransplant can be survival,develop and restore the function of secreting sexhormone.

Objective: To study stress distribution and displacement by different distract directioos on mandibular corpus with finite element method. Methods:A three-dimensional finite element model of mandibular distraction osteogenesis was established.Von Mises stress as well as the displac ement of gnathion and gonion under different loads were measured. Result s:The stress and displacement were positively related with distract forc e. Von Mises stress primarily accumulated in distracted areas and were higher un der bilateral distraction parallel to the occlusial plane. Gnathion and gonion w ere positively displaced on X and Z axes and negatively displaced on Y axis. Distraction parallel to the mandibular body induced positive displaceme nt of mandible on X and Y axes and negative on Z axis. Concl usion:Transversal displacement to the opposite side is greater during un ilateral distraction, while displacement on the saggittal plane is greater durin g bilateral distraction.

Objective To explore the correlation between adverse childhood experiences, personality characteris?tics and alcohol dependence. Methods A total of 102 patients with alcohol-dependence (Patients group) and 106 volun?teers (control group) were rated by the adverse childhood experience scale (ACEs) and the big five personality scale (BFP). Results The prevalence of ACEs are significant higher in patients group than in control group, especially regard?ing emotional abuse, physical neglect, witness violence and substance abuse. The patients group has lower scores of de?light, conscientiousness and higher scores of psychoticism. Psychoticism and parents abuse alcohol in childhood were the risk factors of alcohol dependence. Conclusions There is a correlation between alcohol dependence with their ACEs, per?sonality characteristics and parents abused substance. The psychoticism increase the risk of alcohol dependence.