Objective:This experiment aims to find a appropriate scaffold for Tissue Engineer- ing.Methods:The chondrocytes were cultured when they were seeded onto PGA+PLA scaffolds coat- ing with Lecithin(LEC)and Poly-l-lysine(PLYS)together and respectively.With light microscope and scanning electron microscope,the observation of the scaffolds in hydrophilia and adsorptivity to chondrocytes and the function of the cells was made.Results:The PGA scaffolds coating with LEC and PLYS have better hydrophilia and adsorptivity to the cells;on which the chodrocytes produce more ma- trices.Conclusion:LEC can chang the hydrophilia of the scaffolds;while PLYS can strengthen the ad- sorptivity of the scaffolds;the PGA coating with LEC and PLYS is an ideal scaffold in Tissue Engineer- ing.

Objective: To study the endangered mechanism of tuniclike psammosilene root and put forward the conservation ways,so as to provide basis for resources conservation.Methods: Wild on-site inspection was used to study the natural distribution,living condition,biological characteristic,growing adaptability of tuniclike psammosilene root.Results: Tuniclike psammosilene root can grow well in barren,dry and cold circumstances but wetting.The population quantity of tuniclike psammosilene root was reduced largely for destroy of biogeocoenosis.Conclusion: To conserve resources,the exploitation of tuniclike psammosilene root should follow the pattern of planting and finish machining.

Objective To explore the prognosis of elderly patients suffered from hospital-acquired pneumonia (HAP) by T cell subsets and clinical pulmonary infection score (CPIS).Methods A cohort of 125 elderly patients admitted in ICU & ED (Emergency Department) from Aug,2012 to Jul,2013 were enrolled for a prospective and observational study.The patients were divided into 3 groups:HAP survival group (n =50,group A),HAP death group (n =40,group B) and non-HAP group (n =35,control group).The criteria of exclusion were patients with auto-immune diseases,immunodeficiency,allergic disorders,malignancies,diabetes,trauma,surgical diseases,or patients with recent use of immunosuppressive agents or cyclooxygenase-inhibitors (Aspirin etc.).In the control group,patients with nosocomial pneumonia and other diseases afecting the CPIS were excluded.APACHE Ⅱ scores of all patients were recorded.Blood T cell subsets (including values of CD3,CD4 +,CD8 +,and CD4 +/CD8 +)were measured on the admission day,the 1st day of HAP onset and the 5th day after onset of HAP in HAP patients whereas these measurements were tested only on the admission day in controls.Meanwhile,the CPISs were recorded on the admission day,the 1st day of HAP onset and the 5th day after onset of HAP in HAP patients.Flow cytometer (FCM) was used to detect T cell subsets.Data of statistical analysis were represented as Mean ± SD.The significant differences in T cell subsets and CPIS between survival group and death group were analyzed by independent t test.The paired samples t test was employed in survival group and death group.Linear correlation analysis was made between CD4 +/CD8 + ratio and CPIS in survival and death groups,respectively.Results There were no significant differences in demographics and clinical features (including age,sex,length of stay,APACHE Ⅱ scores) of patients in survivors and non-survivors (P ＞ 0.05).The values of CDs (CD3,CD4 + and CD4 +/CD8 + ratio) between patients of control group and patients of HAP groups were not significantly different on the admission day (P ＞ 0.05).The values of CDs on the admission day were much lower than those on the 1 st day of HAP onset in both survivors and nonsurvivors (P ＜ 0.05).The values of CDs on the 5th day after onset of HAP were higher than those on the 1 st day of HAP onset in the survival group (P ＜ 0.05),while there were no significant differences in CDs between different intervals after HAP onset in the death group (P ＞ 0.05).There were no significant changes in values of CD8 + in any group (P ＞ 0.05).Both survivors and non-survivors had much higher CPIS values on the 1st day of HAP onset than those on the admission day (P ＜0.01).The survival group had higher CPIS on the 5th day after onset of HAP compared to the 1st day of HAP onset (P ＜0.01),while there was no significant change in the death group.Linear correlation analysis showed negative correlation between CD4 +/CD8 + ratio and CPIS on both the 1 st day of HAP onset (survival group:R =-0.740,P =0.004 ; death group:R =-0.613,P =0.035) and the 5th day after onset of HAP (survival group:R =-0.639,P =0.009; death group:R=-0.686,P=0.021).Conclusions The hospital-acquired pneumonia appears as an immune imbalance disorder.The difference in CDs is a promising objective tool,aiding in prediction of prognosis of HAP in the elderly,the lower the CDs,the higher severity.The CD4 + / CD8 + ratio showed a negative correlation with CPIS.Monitoring of T cell subsets and CPIS may provide clinical value for the treatment of hospital-acquired pneumonia in the elderly.

BacKground:Fanconi anemia( FA)pathway as a DNA crossIink damage repair pathway pIays an important roIe in maintaining genome stabiIity. In recent years,FA pathway was wideIy studied in DNA damage and cancer pathogenesis. Aims:To investigate the interaction between RAD18 and FANCD2 protein in human coIorectaI cancer ceII Iine SW480. Methods:Antigen-antibody compIex was co-precipitated by immunoprecipitation. Expressions of rabbit anti-human FANCD2 and RAD18 protein in antigen-antibody compIexes were detected by Western bIotting. The pIasmids of GST-RAD18 and GST were transferred into BL21 ceIIs and induced to express the target proteins. TotaI proteins of the ceII was extracted and GST-beads were used to conjugate the GST-RAD18 protein,and then incubated with the SW480 ceII Iysates, and Western bIotting was performed with the addition of rabbit anti-human FANCD2 antibodies. Results:RAD18 protein was detected in the antigen-antibody compIex from immunoprecipitation by using anti-FANCD2 antibody,and FANCD2 protein was detected by using anti-RAD18 antibody. FANCD2 protein was aIso detected by using anti-GST-RAD18 antibody. GST-RAD18 protein used as bait protein couId capture the FANCD2 protein in SW480 ceIIs. Conclusions:There is an interaction between RAD18 and FANCD2 protein in SW480 ceIIs,and aIso an interaction between GST-RAD18 and FANCD2 protein.

Objective To investigate the distribution of water-borne fluoride and the current status of water defluoridation project by improving drinking water quality in endemic fluorosis areas in Shandong province,and to provide scientific basis for making strategies in prevention and control of the disease. Methods According to "the National Technical Scheme for Endemic Disease Control in 2004, 2005 and 2006", 113 endemic fluorosis diseased counties(cities, and districts) of the province's 17 cities were screened in order to investigate the fluoride level in drinking water in fluorosis villages, recheck the fluoride level after implementing the water defluoridation project, and investigate the current status of the water defluoridation project. The fluoride level in drinking water was determined by F-ion selective electrode. Results There were a total of 5816 water defluoridation projects in the province. Most of them were carried out by drilling a deep well to get under-ground water. The wells still in good condition were accounted for 72.80% (4234/5816). Intermittent operated wells were accounted for 3.11% (181/5816). Abandoned wells were accounted for 24.09%(1401/5816). Level of water fluoride was determined in 6940samples from fluorosis villages(villages that not carry out the water defluoridation project as well as villages carried out the water defluoridation project with abandoned wells were included) and the value that lower or equal to 1.00mg/L was determined in 2987 villages which accounted for 43.04% (2987/6940). Level of water fluoride that over 1.00 mg/L was found in 3953 villages which accounted for 56.96% (3593/6940), and the highest level of water fluoride was 11.33 mg/L. Level of water fluoride were determined in 4415 samples from water defluoridation project and the value lower or equal to 1.00 mg/L was in 2983 wells which accounted for 65.53%(2983/4415). The value over 1.00 mg/L was in 1522 wells which accounted for 34.47%(1522/4415), the highest value of water fluoride was 9.71 mg/L. Conclusions Level of water fluoride in up to 1/2 of the villages and 1/3 of the projects, is still higher than the standard in Shandong province. Nearly 1/4 of the project has been abandoned. The current situation for endemic fluorosis control is still not good in the province, countermeasures for endemic fluorosis must be carried out as soon as possible and surveillance of water defluoridation project must be strengthened.

Objective To investigate the compound donkey-hide gelatin syrup in reducing adverse reactions of qi-blood weakness patients caused by clozapine.Methods 132 patients from Psychiatric Hospital of Yunnan Province between January 2010 and June 2010 were randomly divided into a treatment group and a control group.Both groups were taken clozapine orally.On this basis,the treatment group was taken compound donkey-hide gelatin syrup and the control group was taken placebo syrup.After 8 weeks treatment for both groups,the PANSS,TESS,physical examination and experiment examination were observed to evaluate the clinical efficacy and safety.Results ① the total curative effect:the treatment group was 73.53％,the control group was 65.63％,showing statistical difference (x2=2.543,P＜0.05).② PANSS scores changes before and after the treatment:PANSS score at 2,4,6,8 weeks after the treatment of both groups were [(72.51 ±27.55),(60.54±24.03),(53.12± 15.27),(48.15± 11.88) in treatment group respectively,and (70.71 ±23.90),(58.89± 18.95),(53.06± 14.38),(48.98 ± 9.78) in the control group,respectively],both showing significant difference than the same group before the treatment [(103.99±39.12) in the treatment group,(99.78±34.35) in the control group] (P＜0.05).But there was no statistical significance between two groups (F=2.413,P＞0.05).③ adverse reactions:during the treatment liver function,blood cell analysis,dystonia,Parkinson's obstacle,akathisia,abnormal gastrointestinal reaction,heart rate,heart rate variability and blood pressure in the treatment group was significantly lower than the control group (x2=4.562,P＜0.05).Conclusion Compound donkey-hide gelatin syrup can effectively relieve adverse reactions in qi-blood weak psychosis patients after clozapine treatment and improve their drug tolerance.

Objective To evaluate the feasibility and efficacy of tumor resection combined with lung volume reduction surgery (LVRS) in pulmonary and esophageal patients.Methods 45 patients with lung tumor and 37 patients with esophageal tumor were di- vided into group A(tumor resection plus LVRS) and group B(tumor resection only) randomly.Group A patients underwent tumor re- section combined with LVRS.The target area was determined according to chest computed tomography and ventilation-perfusion scan- ning.The removed pulmonary tissues made up about 20%～30% of the unilateral lung parenchyma.All patients were followed up for 6～12 months.The pulmonary function,blood gas,dyspnea index and 6-min walk distance were compared.Results There were no death during perioperative period.Forced vital capacity in 1 second,PaO_2,PaCO_2,dyspnea index and 6-min walk distance of the group A were all better than preoperative ones,while group B patients had no statistical difference or slight decrease.Conclusion For some tumor patients with emphysema,simultaneous LVRS might provide better opportunity for surgical treatment,but also im- proved the post-operative quality of life.It widens the operative indication for tumor patients.

AIMTo find new peroxisome proliferator-activated y agonists with high activity and low toxicity.

METHODSBased on JTT-501 and JTT-20993, new isoxazolidine-3,5-dione and noncyclic 1,3-dicarbonyl compounds were designed and synthesized. Their insulin-sensitizing activities were evaluated.

RESULTSEight new compounds were obtained. The structures of synthesized compounds were characterized by NMR, MS and IR. Four compounds (1A-4A) showed insulin-sensitizing activities.

CONCLUSIONCompounds (1A and 3A) showed excellent insulin-sensitizing activities and should be worth further investigation.

3T3-L1 Cells ; Animals ; Glucose ; metabolism ; Hypoglycemic Agents ; agonists ; chemical synthesis ; pharmacology ; Insulin ; pharmacology ; Isoxazoles ; chemical synthesis ; pharmacology ; Mice ; PPAR gamma ; agonists ; chemical synthesis ; pharmacology

OBJECTIVETo observe the clinical effect and safety of circumcision stapler in the treatment of phimosis and redundant prepuce.

METHODSWe treated 120 patients with redundant prepuce or phimosis using circumcision stapler and another 60 by conventional dorsal-incision circumcision. We observed intraoperative blood loss, operation time, postoperative pain, wound healing time, cosmetic appearance of the penis, and postoperative complications and compared them between the two groups of patients.

RESULTSStapler circumcision showed obvious advantages over the conventional method in intraoperative blood loss ([2. 3 ± 1. 3] vs [15.6 ± 2.9] ml), operation time ([7.1 ± 1.4] vs [22.6 ± 4.6] min), wound healing time ([12.0 ± 2.9] as [16.3 ± 3. 1] d), postoperative pain score (1. 9 ± 1. 3 vs 5. 2 ± 1. 7), incision edema, and cosmetic appearance of the penis (all P <0. 05). Besides, stapler circumcision exempted the patients from stitch-removal pain. However, the incidence rate of postoperative local ecchymosis was significantly higher in the circumcision stapler group than in the conventional circumcision group (20. 8% vs 8. 3% , P <0. 05).

CONCLUSIONCircumcision stapler, with its advantages of easier manipulation, shorter operation time, better cosmetic penile appearance, less pain, and fewer complications, is superior to conventional circumcision in the treatment of phimosis and redundant prepuce.

Blood Loss, Surgical ; Circumcision, Male ; instrumentation ; methods ; Ecchymosis ; etiology ; Humans ; Male ; Pain, Postoperative ; Penis ; abnormalities ; Phimosis ; therapy ; Postoperative Complications ; Postoperative Period ; Surgical Staplers ; adverse effects ; Wound Healing

Objective To understand the current situation of endemic fluorosis in Shandong Province,and to provide a scientific basis for development of control strategies.Methods In accordance with the requirements of the national Surveillance Scheme of Drinking-Water-Borne Endemic Fluorosis (Trial) and Shandong Provincial Surveillance Scheme of Drinking-Water-Borne Endemic Fluorosis (Trial),and to understand the progress of the province's water-improvement projects,10 counties were chosen in the province,and 10 water-improvement projects were selected in each county.Running condition of the water-improvement projects was investigated,and water fluoride content was tested.Three epidemic villages were chosen as fixed monitoring villages in each county.In each village,fluoride content in drinking water was determined,and dental fluorosis of all children aged 8 to 12 was diagnosed.Water fluoride content was determined by fluoride ion selective electrode method,and dental fluorosis of children aged 8 to 12 was diagnosed by Dean method.Results ① There were 3570 water defluoridation projects in the province,and water-improvement rate was 87.49％ (10 122/11 569).Normal operating projects accounted for 89.10％ (3181/3570),and the passing rate of water fluoride content was 73.14％ (2611/3570),with the maximum water fluoride as 9.71 mg/L.② In the 10 counties,a total of 86 waterimprovement projects were monitored.Normal operation,intermittent operation and scrapped projects accounted for 95.35％ (82/86),3.49％ (3/86) and 1.16％ (1/86),respectively,and passing rate of fluoride content in water was 50.00％ (43/86),and the maximum water fluoride was 5.32 mg/L.③ In the 27 monitored villages with improved water quality,the passing rate of fluoride content in water was 74.07％ (20/27),and the maximum water fluoride was 4.50mg/L.In the 3 monitored villages without improved water quality,villages of mean water fluoride ≤ 1.20 mg/L and ＞ 1.20 mg/L accounted for 33.33％ (1/3) and 66.67％ (2/3),respectively,and the maximum water fluoride was 1.53 mg/L.④ In the 27 monitored villages with improved water quality,the detection rate of dental fluorosis among children aged 8 to 12 was 57.65％(791/1372),and the detection rate of defect type dental fluorosis was 7.80％(107/1372); the index of dental fluorosis was 1.15.In the 3 monitored villages without improved water quality,the detection rate of dental fluorosis among children aged 8 to 12 was 50.97％ (80/155),and the detection rate of defect type dental fluorosis was 7.10％(11/155); the index of dental fluorosis was 1.16.Conclusions In Shandong Province,the running condition of water improvement project to reduce fluoride still needs to be further improved,and the water fluoride is seriously overweight and endemic fluorosis has not been effectively controlled.Preventive measures should be strengthened.