Objective To investigate the permeability changes of prostate cancer cells membrane under low intensity ultrasound in vitro.Methods The culture of monolayer adherent LNCaP prostate cancer cells in six-well plate was exposed to continuous ultrasound at frequency of 1 MHz.The cells membrane permeability (stained with Calcein)and cells viability(stained with PI)were evaluated by fluorescent microscope (FM) and cells morphological changes were evaluated by scanning electron microscope (SEM) under ultrasound with acoustic intensity of 160 mW/cm2 for 5 s.The rate of cells with increased cells membrane permeability as function of acoustic intensity (80 mW/cm2,120 mW/cm2 and 160 mW/cm2,for 5 s) and exposure duration (5 s,10 s and 15 s,acoustic intensity of 120 mW/cm2) was evaluated by flow cytometry.ResultsAfter low intensity of ultrasound,the cells with increased cell membrane permeability could be clearly shown with Calcein uptake under FM while no cell showed Calcein uptake in the control group.The SEM showed less microvilli on the cells after low intensity of ultrasound exposure and few cells showed holes on the cell membrane.The rate of cells with increased membrane permeability increased with acoustic intensity and exposure duration.Conclusion Low intensity ultrasound alone could increase membrane permeability of prostate cancer cells and cells with increased membrane permeability showed surface plane,uncommon holes on the cells membrane.The rate of cells with increased membrane permeability positively correlated with acoustic intensity and exposure duration.

Objective:To establish a HPLC for determination of Gracillin in Rhizoma Paridis and Yunnan white on the bases of determining anti tumor cytotoxic bioactivities of more than 20 varieties of chinese medical materials and traditional Chinese patent medicines.Methods: The determination was carried out by HPLC on KR 100-5C18 column, with acetoitrile water (43∶5) as a mobile phase. The detection wavelength was 210nm. and the flow rate was 0.8ml/min.Results: The recoveries are 99.8% (RSD in 2.6%, n=6) and 98.8% (RSD is 1.5%, n=6), respechrely. The within day and between day accuracies are 1.4% of RSD(n=6) and 1.8% of RSD (n=4), respectively.Conclusion: The results showed that water, methanol and alcohol extracts of Rhizoma Paridis and Yunnan white had strong inhibition on 6 kinds of neoplasm cells of human body and their component Grarillin also had the inhibition on tumor cells.

Objective: to study the effect of stress management training for mental health of teachers in primary school. Method: 35 teachers and 39 teachers were used as the intervention group and the control group respectively. The teachers of intervention group got stress management training for 6 times in 12 weeks. The intervention included the knowledge of stress, cognitive restructure, coping strategies etc, and SCL-90 Scale was used for effect evaluation. Result: although the scores of SCL-90 all raised, the control group raised higher than the intervention group, and there were significant differences in factors of somatization, interpersonal sensitivity and anxiety. Conclusion: stress management training can alleviate the teacher's stress.

WHO proposed the concept of intrinsic capacity in the World Report on Aging and Health in 2015.As the basis of functional ability in the elderly, intrinsic capacity plays an important role in maintaining the quality of life and promoting healthy aging.However, research on intrinsic capacity is still in its infancy.This article reviews research progress on intrinsic capacity, including the concept, domains, screening methods and its impact on the health of the elderly, in order to provide a reference for further research on this subject.

OBJECTIVE:To improve rational drug use and reduce potentially inappropriate medication (PIM). METHODS:PIM of 700 elderly inpatients in internal medicine department of our hospital was evaluated by Beers criteria(2012 edition)and STOPP/START criteria. RESULTS:700 inpatients whose mean ages were (76.3 ± 7.2) years old took (12.1 ± 4.9) kinds of drugs per patient. 144 cases involved PIM(20.6%). The number of PIM was 220 in total,among which there were 117 cases/times relat-ed to drugs and 22 cases/times related to disease in according to Beers criteria,9 cases/times of STOPP and 72 cases/times of START. Drug with most frequency of PIM in accordance with Beers was benzodiazepines and most frequency in STOPP was thia-zides that used by patients with gout histonry. The most omission frequency of START prescription were absence of metformin thera-py for type 2 diabetes and absence of antiplatelet therapy for diabetes complicated with cardiovascular risk. CONCLUSIONS:A high prevalence of PIM in elderly inpatients in our hospital requires various measures to prevent its occurrence.

The effects of E-cadherin-transfected neural stem cells (NSCs) transplantation for spinal cord injury (SCI) in rats were investigated. Sixty SD rats were randomly divided into model control group, NSCs group, empty plasmid group and E-cadherin overexpression group (n=15 each). The animal SCI model was established by using the modified Allen's method. NSCs were cultured. Rats in NSCs group were subjected to NSCs transplantation. E-cadherin gene eucaryotic expression vector and pcDNA3.1-E-cadherin were respectively transfected into cultured NSCs, serving as empty plasmid group and E-cadherin overexpression group respectively. At 7th day after transplantation, neurological function of all rats was assessed by Tarlov score. After rats were sacrificed in each group, the number of BrdU and Nestin positive cells was counted by immunohistochemistry. Immumofluorescence method was used to detect the expression of neurofilament protein (NF) and glial fibrillary acidic protein (GFAP). As compared with model control group, the Tarlov score and the number of of BrdU and Nestin positive cells, and the expression of NF and GFAP in NSCs group, empty plasmid group, and E-cadherin overexpression group were increased significantly (P<0.05), and those in the E-cadherin overexpression group were increased more significantly than the other transplantation groups (P<0.05). It was suggested that E-cadherin could be conductive to nerve regeneration and repair probably by promoting the proliferation and differentiation of NSCs.

In recent years, infrared spectroscopy (IR) caught the attention due to its advantages of convenient, fast, nondestructive and pollutionfree for simultaneous determination of multiponents. This article reviewed the application of mid-IR and near infrared spectroscopy (NIRS) in the authentic identification, quantitative analysis on active components, quality control on Chinese patent medicine, and detections on production process of Chinese herbal medicine both at home and abroad. Along with the IR technique and its related theoretical development, IR has a broad development prospect in Chinese medicine research field.

Objective To discuss the clinical value of laparoscopic cholecystectomy (LC) combined with endoscopic retrograde cholangiopancreatography (ERCP)/endoscopic Oddi sphincterotomy (EST) on treating choledocholithiasis with cholecystolithiasis. Method The clinical data of 48 patients with choledocholithiasis complicated by cholecystolithiasis treated with LC combined with ERCP/EST from January 2005 to August 2010 was collected and analyzed retrospectively. Results Forty-six patients achieyed success by ERCP,and 45 patients finished LC,all patients underwent LC combined with ERCP/EST were recovered more rapidly,with shorter hospital stays. No severe complications or residual stone and refluent cholangitis in the follow-up of 3-12 months of 46 patients. Conclusions Combining the advantages of LC with ERCP/EST treating patients with choledocholithiasis complicated by cholecystolithiasis,according to the theoretics of minimally invasive surgery, with less invasive and the advantages of shorter hospital stays and rapid recovery. It is the comparatively ideal choice for the treatment of choledocholithiasis complicated by cholecystolithiasis at present.

Objective To assess the safety and efficacy of the local nerve block anesthesia procedure in daysurgery inguinal herniorrhaphy practice.Methods Fifty-eight inguinal herniorrhaphy were performed under the local nerve block anesthesia in the form of day surgery between April 2014 and April 2015 other 58 inguinal hemiorrhaphy were performed under general anesthesia.Time of operation,hospitalization stay,complications and costs were evaluated.Results The average operating time of the day-surgery group was (47 ± 12) min.All operations were completed successfully.Fifty-six patients were discharged in 24 hours and 2 patients were discharged in 48 hours after the surgery.The average costs were 8437 yuan.The rate of postoperative complications was approximately 6.6％ (4/58),including hematoma(3 cases),urinary relention(1 case),and chronic pain (1 case).The VAS scores of 6 hours after the operation were (2.4 ± 0.8).Conclusions It suggests that preperitoneal hemiorrhaphy under the local nerve block anesthesia in the form of day-surgery was safe and effective.Also,it could significantly shorten the time of hospitalization and reduce medical costs.

Objective To evaluate the effect of liver function on liver enhancement in hepatobiliary phase of gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid(Gd-EOB-DTPA)-enhanced MRI.Methods Sixty-seven patients who suffered from cirrhosis and received enhanced MRI with Gd-EOB-DTPA were retrospectively analyzed,and divided into three subgroups according to ChildPugh score(45 patients in group A,20 in group B,5 in group C).All the individuals of both groups had MRI before injection,and hepatobiliary phase images were obtained at 5,10,and 20 minutes after bolus administration of Gd-EOB-DTPA.The relative enhancement(RE) was calculated by dividing the signal intensity of liver(SI) at t min after injection(SIt) by precontrast SI(SI0).The total serum bilirubin level(TB),serum albumin level(Alb) and prothrombin time(PT) were recorded.The one-way ANOVA was used to compare the RE among three groups at 5,10 and 20 minutes.SNK was used for further pairwise comparison.The effect of liver function on RE was assessed with the generalized linear model.Pearson correlation coefficients were measured between each biochemical test result(TB,Alb,PT) and RE at different time points.Results The RE at 5,10 and 20 minutes were 1.59±0.20,1.65±0.22,1.69±0.25 of group A; 1.47± 0.14,1.48±0.18,1.50±0.22 of group B,1.35±0.07,1.27±0.06,1.26±0.06 of group C.There were statistically significant differences of RE among groups at 5,10 and 20 minutes(F=5.854,11.207,9.666,P＜0.01).Statistically pairwise comparison differences of RE were found between group A and C at 5,10 and 20 minutes(P＜0.01),between B and C at 10 and 20 minutes(P＜0.05),between A and B at 10 minutes(P＜ 0.05).There were statistically significant differences of TB,Alb and PT among groups(P＜0.01).RE at 10 and 20 minutes had moderate negative correlation with TB(r=-0.483,-0.500; P＜0.01),low negative correlation with PT(r=-0.326,-0.351;P＜0.01) and weak positive correlation with Alb(r=0.290,0.292;P＜0.05).Conclusions There are differences of RE among patients with different liver function,and the RE is associated with TB,Alb and PT.Thus,it may allow us to estimate the liver function.