The pathological changes and morphological features of fibrinous membrane formation on the posterior chamber lens were studied in rabbits with Irj ght microscopy and scanning electron microscopy. It was found that there were fibrinous membrane, inflammatory cells and pigment deposits on the intraocular lens (IOL) surface. On the 1st postoperative day fi rinous membrane on IOL was formed, on the 7th postoperative day enlarged markedly, on the 14th postoperative day reduced in size. It is und fothat the fibrinous exudate is the basic constituent of the membrane. The membrane on the surface of IOL is composed of fibrin along with macrophages, fibroblastlike cells and giant cells,and eventually fibrosis occurs. The fibrinous membrane and inflmmatory cells on IOL accumulate primarily on the lens edge, optical portion, positioning hole of IOL, and haptic-optic junction. It is suggestedthat fibrinous membrane formation on IOL is closely related to the irritation of PMMA IOL, the breakdown of blood-aqueous barrier and the immune response.

Drug-induced lupus (DIL) is a lupus-like illness that has been recognized as a side effect of over 80 drugs since its first description in association with sulfadiazine in 1945. The epidemiology and clinical course of idiopathic systemic lupus erythematosus and DIL differ markedly, and prognosis is generally favorable in the latter although occasional life-threatening cases have been reported in the literature. Constant pharmacovigilance is crucial for prompt diagnosis and cessation of offending therapy, hence achieving the best outcome. This review discusses the clinical presentation, diagnosis and treatment of DIL so as to call for vigilance of medical workers.

Objective To realize objectification and detailed quantification of palpation.Metbods A kind of automatic palpation device was developed to meet the needs of safeand easy operation,technique simulation,and multi-parameter monitoring in real time.Results This device mainly consisted of programmable controller and its analog-to-digital converter module,mechanical positioning device,pressing device,force testing device and hand-held touch screen,and it was designed to be operated by attenders independently.The device could collect multiple data including force,time and distance in the process of palpation,and monitor the force thresholds of pressing responses at all levels to achieve desired effects.Conclusion This device can be used in the automatic palpation for suitable body areas,especially in the comprehensive observation of acupoint-pressing responses or soft tissue tenderness.

Objective:To investigate the short-term and long-term effects of occlusal rehabilitation on the co-contractration patterns of masticatory muscles of patients with extensive tooth wear.Methods: Twenty-nine patients with severe tooth wear were selected and conducted with occlusal rehabilitation.The surface electromyography(EMG) of masseter(MM),anterior temporalis(TA) and posterior temporalis(TP) at rest position,during clenching and chewing were separately recorded in the stage of pre-treatment,1 month after temporary restoration,1 month after permanent restoration and long-term observation(mean 3.5 years).The Asymmetry Indexes(AI) of bilateral muscles,Activity Indexes of MM/TA,MM/TP and TA/TP were compared in each stage.Results:(1) After occlusal rehabilitation,all the AIs of bilateral MM,TA and TP at rest position,during clenching and chewing showed obvious decrements.(2) In every stage of occlusal rehabilitation,all of the Activity Indexes of MM/TA at rest position,during clenching and chewing had no obvious changes.(3) The Activity Indexes of MM/TP and TA/TP during clenching and chewing significantly increased after occlusal rehabilitation.Conclusion: The treatment of occlusal rehabilitation can significantly improve the bilateral symmetry of masticatory muscles in patients with extensive tooth wear,and also change the coordinated EMG activity of different masticatory muscles.

Objective To compare the therapeutic effects of minimally invasive percutaneous nephrolithotomy(MPCNL) and retroperitoneal laparoscopic ureterolithotomy(RLUL) in the management of impacted upper ureteral calculi.Methods A total of 72 patients with unilateral impacted upper ureteral calculi were treated with MPCNL(n=45) or RLUL(n=27).The operation time,clearance rate of the stone,and the incidence of postoperative hyperpyrexia were statistically analyzed.Results All the operations were completed.As compared to the RLUL group,the MPCNL group had a significant shorter operation time [(43?9) minutes vs(69?17) minutes,t=-11.564,P=0.000].On the day after the operation,both the groups showed a stone clearance rate of 100%.No significant difference was detected in the rate of postoperative hyperpyrexia between the two groups [13.3%(6/45) vs 11.1%(3/27),?2=0.000,P=1.000).The patients were followed up for 1 to 24 months(mean,8 months),none of them developed ureteral stricture or recurrent stones during the period.Conclusion Both MPCNL and RLUL are safe,effective,and feasible for impacted upper ureteral calculi.

A high sensitive and selective imprinted electrochemical sensor based on cobalt nanoparticles/gra-phene modified carbon electrode was prepared by electropolymerization technqiue with p-tert-octylphenol as the template and pyrrole as the functional monomer. The electrochemical behaviors of the imprinted sensor were evaluated with cyclic voltammetry and differential pulse voltammetry. The response currents of the imprinted electrochemical sensor exhibited a linear relationship toward the negative logarithm of p-tert-octylphenol concentrations ranged from 1. 0í10-13 mol/L to 1. 0í10-7 mol/L (R2=0. 994) with the detection limit of 3 . 7í10-14 mol/L ( S/N=3 ) . The imprinted electrochemical sensor was respectively applied to the determina-tion of p-tert-octylphenol in rain water, lake water and drink with the recoveries of 92. 4%-102. 0%.

Objective To evaluate the functional recovery of unstable ankle fractures prospectively after early weight-bearing and cast immobilization. Methods From October 2003 to October 2007, 100 patients who had sought medical management in our department for unstable ankle fractures were enrolled in this prospective study. All patients were treated with open reduction and internal fixation (ORIF), according to the AO/ASIF principles. They were randomized into 2 even groups, one receiving early weight-bearing and the other cast immobilization. The functional recovery was evaluated in terms of Olernd score, Tegner score, pain intensity[merical rating scale (NRS)], full weight-bearing time, return-to-work time, and hospital stay time. Results Forty-six patients in early weight-bearing group and 45 patients in immobilization group finished follow-ups. There was no difference in Olernd score, Tegner score or NRS between the 2 groups, and all pa-tients got a good Olerud score and returned to work. Total weight-beating time in early weight-beating group was 4 weeks less than in immobilization group. Conclusion Early weight-bearing may be recommended for patients who have got a stable osteosynthesis of their fractured ankles as judged by their responsible surgeons, fine compliance, and a high motivation.

ObjectiveTo study the value of localizing different types of auras. MethodsThe 31cases with epilepsy were divided into a group with auras (n =19) and a group without auras (n =12).Student t-test was used to analyze difference in onset age in the two groups. The chi-square test was used to analyze the differences in the rates of abnormal brain MRI in two groups and in the efficiency of epileptic surgery between the two groups.ResultsThe 19 patients in aura group had psychiatric symptoms,autonomic symptoms, somatosensory, visual, hearing, and dizziness auras. These auras and EEG and other examines presumebly localized the epilepsy lesions in temporal lobe, temporal lobe, contralateral parietal or temporal lobe, occipital or temporal lobe, contralateral temporal lobe, and temporal-parietal lobe. After the surgery, auras diminished in all these patients. There was no significant differences in onset age and in presence of abnormal brain MRI between the two groups. The percentage of efficient epileptic surgery in the group with aura (15/19) was significantly higher than that in the other group( 5/12, x2 =4. 456, P =0. 035). ConclusionsEpileptic aura has significant value in localization of lesion. It can help determine the origins of the epilepsy focal and guide epilepsy surgery.

Intrahepatic cholangiocarcinoma is the second most common intrahepatic primary liver tumor after hepatocellular carcinoma (HCC).Epidemiological study suggests a strong correlation between HBV infection and ICC development.This review focused on the potential mechanisms of HBV-induced ICC and gives a primary summary of suggested hypothesis,which included:(1) HBV infection of liver stem/progenitor cells will indirectly lead to HBV infection of intrahepatic biliary epithelial cells and lead to the development of ICC; (2) the changed microenvironment of intrahepatic biliary epithelial cells by HBV infection eventually results in carcinogenesis ; (3) the HBV infection of hepatic sten/progenitor cell can transform into tumor-like stem cells and ultimately differentiate into ICC-like tumor cells.

Evaluation of medical assistance capability plays a significant role in improving medical assistance capability and accomplishing a diverse array of military tasks.Based on gray theory and fuzzy mathematics,we put forward a new evaluation model for disaster medical assistance capability,integrating the AHP,the gray cluster analysis and fuzzy evaluation.This model not only reflects the ambiguity of medical assistance capability evaluation but also makes full use of the information,which avoids the flaws caused by single method of fuzzy mathematics.It provides a new way to evaluate disaster medical assistance capability comprehensively and systematically.