Objective To reseach the time point of the highest percentage of neural precursor cells derived from adipose stromal cells (ADSCs) in vitro, and to observe the ultrastructure features of neural precursor cells. Methods Used the β-mercaptoethanol to induce ADSCs to differentiate into neural precursor cells and neuron-like cells. The morphology of the uninductedcells and inducted cells were observed with inverted phase contrast microscope. The expression of nestin which was the marker of neural precursor cell in each group was detected using immunofluorescence staining method. The ultrastructural feature of cells which was induced for 3 hours were observed. Results The highest ratio of positive expression of nestin was 3 hours following induction,with the ratio ( 86.25 ± 4.82) %. There were many protuberance on the cell membrane under transmission electron microscopy.There were plenty of organelles in the neural precursor cells. The neural precursor cells had a large size nucleus,large nucleoplasmic index, much extended chromatin,and less condensed chromatin. The nucleus had double-layer nuclear envelope, more nuclear pore on the nuclear envelope. Conclusion The time point of the highest percentage of neural precursor cells derived from ADSCs is 3 hours,and the ultrastructral feature of induced neural precursor cells confirm that cells at this time point are in a state of split active period.

Objective To induce adult adult adipose-derived stem cells(ADSCs) in vitro to differentiate into neuronal-like cells,and to analyze the features of their cell morphology and ultrastructure. Methods Adipose stromal cells were obtained and amplified in vitro. Then make use of chemical induction to induce them. Observed ADSC and differentiation of cells in morphology and ultrastructure under inverted microscope and transmission electron microscopy. Immunocytochemistry to detection of Nestin, Neuron Specific Endolase( NSE) ,and glial fibrillary acidic protein(GFAP) expression in cells. Used Real-time PCR to detection of Nestin,GFAP gene mRNA expression before and after induction in ADSC. To observe the morphology and ultrastructure of the cells prior to and after induction under microscope and electron microscope. Results The morphology of ADSC was similar to fibroblasts ,and could be amplified stability within 10 passages in vitro. Some of the cells induced display a typical astrocyte-like cells in ultrastructure. Followed neuronal induction,astrocyte-like cells began to stain brightly for CFAP, Nestin. GFAP stained in both the cytoplasm and nuclei of astrocyte-like cells, but Nestin only stained in the cytoplasm. The peak positive expression rate within 14d following neuronal induction. The rate of positive expression cells was( 14.4 ± 3. 6) % for Nestin, (87. 3 ± 5. 3 ) % for GFAP. Then two kinds of protein expression remained the similar rate. The average relative concentration of GFAP and Nestin gene mRNA have significant statistical difference between ADSC and differented cells analyzed by Real-time PCR (P<0.05).The peak concentration of GFAP was within 20 d after induction,and GFAP was within 14 d after induction. Conclusion In the cytoplasm of adult adipose-derived cells possess Nestin genetic material,which is the marker of neural stem cell. The differential astrocyte-like cells have the typical morphology, ultrastructure and GFAP phenotype of mature astrocytes.

From September of 2006,Department of Pathophysiology opened laboratory to the undergraduates of 2004 grade.Stu- dents chose titles and designed experiments by themselves,and after expert teachers' assessment,they put them into practice. Functional Laboratory of the college is in charge of the oprtation and administration of it.Through this semester's practice and exploration,we got satisfactory effect and great welcome from students.

Objective To study the relationships among leptin, leptin receptor (OB-R) gene in arcuate nucleus and type 2 diabetes mellitus, and the effect of acupuncture on them. Methods Obese rats due to diet were injected in abdomen with small dosage streptozotocin to induce type 2 diabetes mellitus model, and were divided into acupuncture, glibenclamide and model group. Normal rats were in control. After treatment for 4 weeks, fasting blood sugar (FBS), fasting insulin (FINS), leptin, OB-R mRNA expression in arcuate nucleus were evaluated. Height, weight were measured and Lee's index were calculated before and after treatment. Results The FBS and FINS were higher in model group ［(15.79±1.87) mmol/L, (37.20±3.92) mIU/L］ than in control ［(5.16±0.13) mmol/L, (23.57±1.63) mIU/L］, but decreased in acupuncture group ［(5.46±0.20) mmol/L, (20.87±1.80) mIU/L］ and glibenclamide group ［(5.26±0.13) mmol/L, (28.10±1.86) mIU/L］. Leptin was lower in model ［(0.95±0.15) ng/ml］ than in control ［(1.32±0.15) ng/ml］, but was higher in glibenclamide group ［(1.83±0.23) ng/ml］ than in control. Weight and Lee's index decreased in model, acupuncture and glibenclamide groups after treatment. OB-R mRNA expression in arcuate nucleus in model wasn't different from control, acupuncture or glibenclamide group, nor between acupuncture and control, but was lower in glibenclamide group than in control. Conclusion Leptin decreased in type 2 diabetes mellitus rats when they became thin. Leptin resistance appears when treated with glibenclamide. Acupuncture may improve the OB-R mRNA expression in arcuate nucleus to some extent.

The Balanced Score card ( BSC) is a new set of performance measurement and strategic management tools. Based on the basic theory of BSC, and on the basis of establishing the basic framework for performance evaluation of four dimensions, namely satisfaction, financial, internal operation, and growth and development, this paper systematically designs specific evaluation indexes from the 4 dimensions in order to construct the performance evaluation index system for catastrophic disease insurance. The objective of this study is to provide a more scientific and reasonable reference for the operational performance evaluation of catastrophic disease insurance offered to urban and rural residents.

· AlM:To analyze the association between the macular thickness and emmetropic, low myopic, moderate myopic and highly myopic eyes.
·METHODS:The 276 teenagers (276 eyes) between 18~28 years treated in our hospital from January, 2013 to May, 2014 were selected, whose corrective visual acuity was≥1.0 and intraocular preasure was ≤21mmHg and who were willing to participate in this research.Forty-nine emmetropic, 72 low myopic, 104 moderate myopic and 51 highly myopic eyes were measured by optical coherence tomography ( OCT ) to detect the central subfield thickness, bitamporal, superior, lateral and inferior region thickness of inner and outer region, average thickness of retinal macula, foveal thickness and retinal volume.The thickness of different parts of macula lutea was measured and statistically compared among emmetropic, low myopic, moderate myopic and highly myopic eyes.
· RESULTS: The central subfield thickness of emmetropic, low myopic, moderate myopic and highly myopic eyes were (225.38±20.97), (230.97±19.15), (227.01±16.92), (231.91 ±18.97 )μm. The average thickness of retinal macula, of emmetropic, low myopic, moderate myopic and highly myopic eyes were (280.92±12.71), (278.15± 11.90), (270.05±12.07), (267.93±11.08) μm.There were no significant differences of center thickness (F=1.253, P=0.291) and central subfield thickness ( F=1.034, P=0.378) between emmetropic, low myopic, moderate myopic and highly myopic eyes.The macular thickness of inner and outer region in moderate myopic eyes was significantly less than that in emmetropic eyes, and there was significant difference (P<0.05).Comparison between low myopic, moderate myopic and highly myopic eyes was carried out and macular thickness of all regions of inner and outer region in moderate myopic group was significantly increased, and there was significant difference (P<0.05).There was no significant difference when compared with the macular thickness of inner and outer region of the highly myopic group (P>0.05).
· CONCLUSlON: ln low myopic eyes of teenagers, the center macular thickness do not become thinner. However, the macular thickness of inner and outer region is thinner than that of emmetropic eyes.Furthermore, with the increase of the degree of the myopia, the amount of macular thinner gradually decreases from outer region to inner region.

Objective:To study the relationship between hepatic tissue insulin receptor substrate 2(IRS2) gene and type 2 diabetes,and the regulation of acupuncture on IRS2 gene expression of hepatic tissue in type 2 diabetes mellitus(T2DM) rats.Methods:Obese rats due to diet were injected in abdomen with small dose streptozotocin(STZ) to induce T2DM.Then these T2DM rats were stochastically divided into acupuncture group,Glibenclamide group and model group.After 4 weeks treatment,fasting blood sugar(FBS) was examined with active blood sugar meter,fasting insulin(FINS) was examined by radioimmunoassav,hepatic tissue IRS2mRNA was evaluated in real-time RT PCR,and normal rats were in control.Results:Serum levels of FBS(15.79?1.87) and FINS(37.20?3.92) in model group were higher than those in normal group(5.16?0.13,23.57?1.63),serum levels of FBS(5.46?0.20) and FINS(20.87?1.80) in acupuncture group were obviously lower than those in model group,which were similar to normal group.FBS(5.26?0.13) reduced obviously and serum FINS(28.10?1.86) reduced in some degree in Glibenclamide group compared with model.Relative contents of IRS2mRNA in model group were 2.19 folds compared with that in normal group.And in Glyburide group it was 4.59 folds compared with that in normal group.In acupuncture group it was 4.04% of that in the normal group.Conclusion:Abnormal hepatic tissue IRS2 mRNA expression may be one of pathogenesis of T2DM.Acupuncture can obviously depress hepatic tissue IRS2 mRNA expression,but Glibenclamide can not.

ObjectiveTo investigate influence of sedation and analgesia on stress reaction of post-cardiac surgery in infants with congenital heart disease.MethodsForty children with congenital heart disease were randomly divided into 2 groups after cardiac surgery.The analgesia group was given 0.5-2.0 ?g/(kg?h) fentanyl intravenous infusion in 20 children undergoing cardiovascular surgery.The control group was given 5-8 mg/(kg?dose) lbuprofen orally.Midaiolam 0.01-0.20 mg/(kg?h) was used in 2 groups for sedation by intravenous infusion or 0.05-0.10 mg/(kg?dose)by intravenous push intermittently.The effects and adverse effects of sedation and analgesia were observed on 2,8,24,48 h after surgery in each group.The levels of cortisol,growth hormone,insulin and blood glucose were measured,respectively.ResultsThere were significant differences in Ramsay,Comfort value on 2,8,24 h(Pa

Adenocarcinoma ; metabolism ; secondary ; Adult ; Aged ; CDX2 Transcription Factor ; Carcinoma, Signet Ring Cell ; metabolism ; pathology ; Colonic Neoplasms ; metabolism ; pathology ; Cystadenocarcinoma, Mucinous ; metabolism ; pathology ; Cystadenocarcinoma, Serous ; metabolism ; pathology ; Diagnosis, Differential ; Female ; Homeodomain Proteins ; metabolism ; Humans ; Keratin-20 ; metabolism ; Keratin-7 ; metabolism ; Middle Aged ; Ovarian Neoplasms ; metabolism ; pathology ; secondary ; Trans-Activators ; metabolism ; Young Adult

Objective To summarise the clinicopathologic features and survival of gastric cancer at different tumor locations.Methods A total of 942 adult gastric cancer patients undergoing curative gastrectomy with lymphadenectomy were recruited from the First Affiliated Hospital,Sun Yat-sen University,and examined retrospectively.In all cases,patients' age,gender,pTNM stage and survival time were identified and recorded.Results There were 208 carcinoma cases at gastroesophageal junction (GEJ,22.1％),261 fundus/body cases (27.7％),445 antrum/pylorus cases (47.2％) and 28 whole stomach cases (3.0％).Compared with fundus/body and antrum/pylorus carcinoma,GEJ carcinomas were more often seen in males,among older patients,with larger tumor size and deeper infiltrated tumors,higher stage and worse 5-year disease-free survivals.Whole stomach carcinoma had predilection in female,younger patients,and at later stages and worst 5-year disease-free survival.Conclusions Gastric carcinomas differ greatly in biologic behavior and prognosis by anatomic locations.GEJ carcinoma has independent biologic features.Whole stomach carcinoma is of the highest malignancy and worst prognosis.