Objective: To evaluate the role of the deep radioulnar ligament in the stability of the distal radioulnar joint (DRUJ).Methods: In the study, 14 fresh cadaver upper extremities were randomly divided into two groups.After exposuring the palmar and dorsal deep distal radioulnar ligament, one group was marked as palmar deep radioulnar ligament, and the other group was marked as dorsal deep radioulnar ligament.The pronator teres and the supinator were exposed.A Kirschner wire perpendicular to the bone on Lister tubercle of radius was inserted, then another Kirschner wire on the same level of ulnar inserted when the forearm was in neural position, which was kept parallel to the first Kirschner wire.These specimens were mounted on a specially designed jig which held the limb rigidly, keeping the elbow fle-xion and the ulnar fixation.The radius could freely rotate around the ulnar.Then 50 N force on the pronator teres was applied to simulate the active pronation, and 60 N force on the supinator to simulate the active supination.The active pronation was stimulated, and the displacement of the distal radius was measured with respect to the ulna.The active supination was atimulated, and the displacement of the distal radius was measured with respect to the ulna.The palmar deep radioulnar ligament in one group was cut, then the displacement of the distal radius measured with respect to the ulna when the forearm was in pronation and supination.The dorsal deep radioulnar ligament in the other group was cut, and the displacement of the distal radius measured with respect to the ulna when the forearm was in pronation and supination.Results: After resection of the palmar deep radioulnar ligament, the displacement of the distal radius with respect to the ulna was statistically significantly different when the forearm was in pronation (t=5.591, P=0.001), but there was no difference when the forearm was in supination (t=0.433, P=0.680).After resection of the dorsal deep radioulnar ligament, the displacement of the distal radius with respect to the ulna was not different when the forearm was in pronation (t=1.000, P=0.356), but there was statistically significant difference when the forearm was in supination (t=6.225, P=0.001).Conclusion: DRUJ is unstable when the forearm is in pronation after resection of the palmar deep ra-dioulnar ligament, and DRUJ is unstable when the forearm is in supination after resection of the dorsal deep radioulnar ligament.

Objective To analyze the characteristics of epidemic situation of HIV/AIDS in Yongzhou from 1993 to 2014,and provide evidence for HIV/AIDS prevention and control strategy.Methods Descriptive epidemiological analysis was conducted on HIV/AIDS epidemic situation in Yongzhou from 1993 to 2014.Results A total of 2 917 HIV/AIDS cases were reported,the reported cases increased year by year;the ratio of male to female cases was 2.30∶1 ;52.04% were aged 20-49 years old,46.76% were aged ≥50 years old,the percentage of population ≥50 years old increased obviously in recent years;the major transmission route was sexual contact (88.48% ),gay transmission accounted for 2.64%.Conclusion The knowledge about AIDS in Yongzhou should be strengthened, intervention in high risk population should be implemented,scope of detection should be expanded,so as to prevent the transmission of AIDS effectively.

Objective To analyze clinical manifestation and identify prognostic factors in patients with acute respiratory distress syndrome (ARDS) caused by cytomegalovirus (CMV) pneumonia after kidney transplantation.Methods Fifty five kidney transplant recipients' data were analyzed in a case-control study of patients with a primary discharge diagnosis of ARDS caused by CMV pneumonia.Results The mortality of ARDS after kidney transplantation was 56.4%;when association with mechanical ventilation,it was 72.5%.In multivariate Logistic regression analysis,numbers of complications (odds ratioOR2.60,95% confidence intervalCI1.00~6.76),severity of diffuse infiltrates in chest X-ray (OR 11.83,CI 1.14~123.07),mechanical ventilation (OR 11.83,CI 1.14~123.07) were independent risk factors to death.Conclusion Even in modern era,kidney transplant recipients with ARDS after kidney transplantation are still at high risk for death.Numbers of complications,severity of diffuse infiltrates in chest X-ray,mechanical ventilation are associated with poor outcomes.

Objective To explore the modulation of chlorogenic acid (CGA) on glucose metabolism in HepG2 cells pretreated with high insulin and high oleic acid (OA). Methods Cultured HepG2 cells induced by high insulin and oleic acid for insulin resistance and steatosis respectively, were co-cultured with different concentrations of CGA (10,20,40,80 mg/L) for 24h. The morphological changes were observed and glucose consumptions of cells were measured by glucose oxidase method. Results Compared to control group, CGA could significantly increase glucose consumption of normal HepG2 cells and the dosedependent effect was noted between 10-40 mg/L(P

OBJECTIVE To estimate the distribution of pathogens of nosocomial infection in intensive care units,the sites where infections often taken place and the related antibiotic-resistance of bacteria.METHODS Various samples of bacteria from intensive care units have been examined by applying half-automatic analyzer ATB Expression,with bacteria inspecting cards and drug-sensitivity cards,all from Bio-Merieux,France.RESULTS Totally 153 strains of nosocomial pathogens have been found,where Acinebacter baumannii,fungi and Pseudomonas aeruginosa ranked top three,with rates of 32.0%,16.3%,and 15.0%,respectively.About 45.8% of pathogens were found in samples from the lower respiratory tract.Approximately 4.3% of A.baumannii showed drug-resistance to imipenem.However,more than 50.0% of A.baumannii presented its strong drug-resistance to rest of eight regular antibiotics.CONCLUSIONS A.baumannii is a dominating pathogen to cause nosocomial infection in intensive care units,and has shown strong multi-drug-resistance,which should incur high clinical attention.It comes to be crucial to highlight sanitization and sterilization operation,applying proper antibiotics in order to reduce appearance of bacteria with drug-resistance.

Objective To evaluate the effect of preoperative oral finasteride on patients with benign prostate hyperplasia (BPH) undergoing holmium lasterenucleation of prostate (HoLEP).Methods A total of 156 BPH patients from Department of Urology in Shanghai Ninth People's Hospital from Sep.2010 to Mar.2012 was analyzed retrospectively.79 patients receiving oral 5 mg/d finasteride before operation were selected as medication group,and the 77 patients without taking finasteride were selected as control group.The perioperative data,including operation time,amount of washing fluid during operation,preoperative and postoperative changes of hemoglobin level and postoperative bladder washing time were compared between two groups.Results Compared with control group,the changes of hemoglobin level after HoLEP,amount of washing fluid during operation,and postoperative bladder washing time with normal saline were significantly decreased in experimental group[(1.08±0.27) g/L vs.(1.55±0.32) g/L,(27.51±3.67) L vs.(36.89±6.47) L,(24.85±4.17) h vs.(35.87±5.10) h,all P＜0.05].Conclusions Oral finasteride before HoLEP can reduce perioperative bleeding and the volume of bladder irrigation with normal saline.

Background:Mediastinoscopy is an effective method for the treatment of early esophageal cancer with minimal invasiveness and lower risk. Preoperative accurate staging of esophageal cancer is the key for the choice of mediastinoscopic operation as the treatment modality. Aims:To evaluate the value of combination of endoscopic ultrasonography(EUS)with CT for the treatment of esophageal cancer under mediastinoscopy. Methods:Sixty patients with esophageal cancer were enrolled. The TN staging results of esophageal cancer by EUS and CT examination were compared with the results of postoperative TN staging. Patients were divided into mediastinoscopic operation group and conventional operation group, and the operation time,intraoperative bleeding volume,postoperative pleural drainage flow and postoperative hospitalization time of the two groups were compared. Results:The accuracy rates of preoperative EUS examination in assessing T and N stage were 81. 7% and 83. 3% ,respectively;accuracy rates of preoperative CT examination were 60. 0% and 53. 3% , respectively;and accuracy rates of EUS combined with CT were 85. 0% and 86. 7% ,respectively. Compared with conventional operation group,intraoperative bleeding volume[(178. 2 ± 30. 1)mL vs.(232. 0 ± 48. 2)mL,P ﹤ 0. 05], postoperative pleural drainage flow[( 142. 8 ± 22. 5 ) mL vs. ( 256. 0 ± 42. 3 ) mL,P ﹤ 0. 01 ],postoperative hospitalization time[(12. 1 ± 2. 5)days vs. (14. 3 ± 3. 6)days,P ﹤ 0. 05]in mediastinoscopic operation group were significantly decreased,and no significant difference in operation time was found between the two groups[(152. 4 ± 13. 2) minutes vs.(163. 3 ± 25. 5)minutes,P ﹥ 0. 05]. Conclusions:Combination of EUS with CT examination can improve the accuracy of preoperative staging,thus provides an important reference for the choice of treating esophageal cancer by mediastinoscopic operation.

Stable isotope coded derivatization (ICD) is an isotope labeling technique for specific functional groups of the target analytes through chemical derivatization.ICD combined with liquid chromatography-tandem mass spectrometry (LC-MS/MS) enables systematically analyzing the biomolecules with the same labeling reaction characteristic.ICD technique can effectively solve the limited sensitivity in complex bio-matrices analysis and unavailability of isotope internal standards in quantitative analysis.In recent years, ICD technique has been widely used in metabolomics research field.Based on this background, the ICD technique and the design of ICD reagents are briefly described in this review.The recent advances in ICD reagents for carboxyl, amino, carbonyl, thiol and hydroxyl groups and their applications in the analysis of small molecule metabolites in bio-matrices with LC-MS/MS are reviewed.

Objective To evaluate the value of ghrelin on predicting prognosis in patients with chronic heart failure (CHF) after hospital discharge.Methods Totally 145 patients withCHF (age≥60 years,83 males and 62 females) were divided into 3 subgroups by New York Heart Association classification (NYHA):class Ⅱ (n=48),class Ⅲ(n=57) and class Ⅳ(n =40).According to the basic diseases,the CHF group was divided into five subgroups.All patients were followed up for about 2 years.The study included 55 healthy control subjects (30 males and 25 females).Results Plasma ghrelin level was lower in CHF cases (1.66±0.28) μg/L than in control subjects (2.27±0.26) μg/L (t 3.77,P＜0.01).The ghrelin level in NYHA Ⅱ(1.85±0.13) μg/L were higher than in NYHA Ⅲ (1.56±0.28) μg/L,the latter were higher than in NYHA Ⅳ (1.27±0.24) μg/L (P＜0.05).The plasma ghrelin level of patients after treatment (1.98±0.25) μg/L was increased compared with that of before treatment (1.66±0.28) μg/L (P＜0.05).No significant difference was found among the five basic disease groups (P＞0.05).During the follow up periods of (637±97)days,plasma ghrelin level was decreased in patients with cardiovascular event (1.26±0.38) μg/L than in patients without cardiovascular event (1.86±0.34) μg/L.The plasma ghrelin was negatively correlated with left ventricular end-diastolic diameter (LVEDD) and left ventricular ejection fraction (P＜0.05).Conclusions The plasma ghrelin in elderly patients with CHF is decreased than in healthy adults,and its level is lower in patients with severe heart failure.The plasma ghrelin is a predictor of cardiovascular event and death in elderly patients with CHF.

Objective To investigate the health-related quality of life (HRQOL), demographic characteristics, and health behaviors of the Chinese elderly to find out high-risk population and behaviors. Methods Data was collected from a cross-sectional survey performed in Jiangsu, Anhui, Gansu,Qinghai, Fujian, Beijing, Jilin, Jiangxi, and Henan province. MOS SF-36 was used for HRQOL assessment, t test was used for HRQOL comparison between the elderly and the general population. Multiple stepwise linear regression analysis was used to evaluate the affecting factors. Results The HRQOL among the Chinese elderly were PF ( Physical Functioning) 79 ± 21, RP ( Role-Physical ) 68 ± 40, BP ( Bodily Pain) 72 ± 23, GH ( General Health) 57±22, VT ( Vitality ) 69 ± 20, SF ( Social Functioning) 79 ± 23, RE ( Role-Emotional ) 72 ±40, M H ( Mental Health)76 ± 18, which were lower than Sichuan Norm on 7 dimensions ( P ＜ 0. 05 ; except on M H dimension) and lower than Hangzhou Norm on 5 dimensions (P ＜ 0. 05 ;except on GH, VT, and MHdimensions). The important affecting factors included physical exercise, education level, medical history of chronic disease, age, race, marriage, body mass index ( BMI ), sleeping habits, and gender. Conclusions Compared with the general population, the HRQOL in the elderly might be lower. The health policy and community heahhcare services should focus on the elderly individuals with insufficient exercise, lower education level, chronic disease history, and ethnic minority, or widows. Health education should encourage them to improve physical exercise and sleeping behavior.