Objective:To discuss protective mechanism of polydatin(PD)on cerebral ischemia reperfusion injury.Methods:By using rat models of focal cerebral ischemia reperfusion,influence of PD on neuronal apopsis after cerebral ischemia reperfusion injury were examined.Results:Parts of neurons began developing apopsis at 2 hours after reperfusion,.With time passing after reperfusion the number of apoptotic cells increased gradually with peak at 24 hour and thendecreased gradually,The number of apoptotic cells decreased significantly(P

Objective To evaluate retrospectively ECG -gating for the coronary angiography with MSCT. Methods 15 patients were studied with a multislice spiral CT on retrospective ECG -gating,0.5s rotation, and cardial segment reconstruction algorithm. Nine phases were chosen to reconstruct images of coronary arteries. Results In the 230 coronary artery segments,213 (91%)were best visualized at 70%. And 15 (6.4%), 9 (3.8%), and 3 (1.3%) were optimal at 80%, 40% , and 5% of the cycle respectively. Conclusion The coronary arteries usually are best visualized at 70% image reconstruction window of the cardial cycle.

Objective:To prepare bryostatins freeze-dried liposomes and to establish a quality standard for the liposomes.Methods: Film dispersion technique was used to encapsulate bryostatins with liposomes.Chloroform was taken as the solvent and was volatilized by revolving.Emulsification was performed with the probe after hydration,then the supporting agent was added for freeze drying.An RP-HPLC method was developed to determine the freeze-dried liposome content.The separation was performed with a Agilent C_(18) Column and the mobile phase was methanol-water in gradient elution 7525(0-38 min),(73.726.3)(38-45 min),7921(45-48 min) by a flow rate of 1.5 ml/min,with the UV detector set at 228 nm.Zetasizer was used to determine the size of liposomes and the entrapment efficiency was determined with centrifugal ultrafilter.Results: The freeze-dried liposomes were homogeneous and the mean diameter was 0.423 ?m.The standard curve was linear over the range of 44-220 ?g/ml,r=0.999 8.The intra-day and inter-day RSDs were less than 2.0%.The recoveries of the high,middle and low concentrations(88,110,and 132 ?g/ml) were 100.8%,98.4%,and 100.9%,respectively.The detection limit was 4.4 ng,the quantitation limit was 17.6 ng,and the entrapment efficiency was 98.68%.Conclusion: The film dispersion technique is(suitable) for preparation of bryostatins liposomes.The method in this study is easy-to-use,accurate,and with good(repeatability.)

Objective To explore the efficacy of oppression hemostsis time on hemorrhage and patient comfort after carotid endarterectomy. Methods Patients with carotid artery stenosis from January 2014 to September 2015 were enrolled.The patients were divided into three groups according to oppression hemostasis time:control group for 24 hours,experimental group one for 12 hours,experimental group two for 6 hours.The outcomes were the incidence of hematoma,errhvsis,anxiety,and neck pain. Results No significant differences were observed in hematoma and errhysis among these three groups.The total scores of anxiety and neck pain of experimental group two were (51.43±8.18) points,(1.28±1.06) points,obviously surpassed the comparison group (56.64 ± 7.08) points,(2.31 ± 1.17) points,showed a significant decrease in two groups (t=2.96, 4.03, P<0.05). The total scores of anxiety and neck pain of experimental group one were (54.14±8.99) points,(1.97±0.97)points,showed no significant in compared with comparison groups(t=1.31, 1.32, P>0.05). Conclusions The preferred option for oppression hemostasis time is 6 hours that has an effective hemostasis with a favorable patient comfort.

ObjectiveTo investigate the relationship of ovarian cancer and the ascites levels of TNF-α,and to determine the value of elevated TNF-α ascites level on discriminating the feature of ascites.MethodsAscites levels of TNF-α of 59 specimens of epithelial ovarian tumor,9 specimens of peritoneal primary serous papillary carcinoma (PPSPC) and 6 specimens of endometriosis cyst were detected via ELISA.ResultsAscites levels of TNF-α of patients with EOC,PPSPC,BOT were significantly higher than those with BET and EM,and they were related to the clinical stage,tissue differentiation,lymph node metastasis and volume of ascites.ConclusionAscites levels of TNF-α have the high sensitivity and specificity for diagnosis of ovarian cancer.It might be the tumor marker of ovarian cancer.

Objective To explore the application of partial least square regression model in the study of personality characteristics of the scientific personne1,to supply more reliable and scientific rationale to the training and intelligent use of scientific personne1 in colleges.Methods We took our survey by 114 scientific personnel from eight universities with NEO-PI-R(Revised NEO Personality Inventory).After the process of simplifying the NEO-PI-R,we need partial least square regression model to analyze.Results The results of the PLS analysis indicates the goodness-of-fit of the model was good,which opened out clearly and intuitively the connection between the items and five personality characteristics,the model could be used as theory reference for personnel department,research department and education department to consummate the training of scientific personne1 in colleges.Conclusion Partial least square regression model could be used to study personality characteristics of the scientific personne1 in colleges as statistic method appearing recently.

Objective To explore the real experience of patients with aortic dissection (AD) disease during the early phase of the disease. Methods Interpretation phenomenological analysis method was used in the study. Self- structured in- depth interviews were conducted with AD patients who were admitted to the hospital from November 2013 to February 2014, and combining the participation observation method to collect relevant data. Data were analyzed by content analysis. Results 16 cases were interviewed and four advanced themes were extracted: experience of disease symptoms; negative emotion; coping styles; the insight of life. Conclusions AD patients can produce complex psychological experiences when they are informed of the diagnosis because of the experience of pain, sudden critical illness, the role change and so on. Medical staff should pay attention to their psychological status and needs, take corresponding effective measures to promote the further treatment and their physical and psychological rehabilitation.

Objective To explore the relationship between parental marital quality and depressive behavior in children.Methods Using the method of stratified cluster random sampling,1 311 mothers whose children were 4 to 7 from Shenzhen' s kindergartens were randomnly selected and filled out Achenbach Child Behavior Checklist(CBCL 4/16) and Chinese Marital Quality Questionnaire.The survey results were analyzed using SPSS statistical package.Results ①In 1 311 children,the detection rate of depressive behavior was 3.28％ (43/1 311).Based on the detection rate,the difference of children depressive behavior was not statistically significant between the gender(x2=2.860,P＞0.05),but was statistically significant among different ages(x2 =17.146,P＜0.01).Increasing depressive behavior was observed with age.②The normal group of behavioral and emotional development was better than the group which had depressive behavior in marital quality(63.65±14.86) and 10 indicators of marital quality including personality magnanimous(6.03± 1.49),communication of couple(6.04± 1.48) and family roles (6.03± 1.48).There were statistical significances in marital quality(t=4.415,P＜0.05) and its 10 indicators,which was communication of couple(t=4.891,P＜ 0.05),conflict resolution (t=4.229,P＜0.05) and leisure activities(t=4.084,P＜0.05),were showed significant differences between the two groups.③The relationship between parental marital quality and depressive behavior in children were negatively correlated(r=-0.070--0.352).The better marital quality,the lower incidence of children depressive behavior,and the impact of marital quality for younger children was more significant.④In the indicators of the marital quality,communication of couples(B=-0.318,P＜0.01),and attitude towards offspring and marriage(B=-0.275,P＜0.01) could predict children depressive behavior.Conclusion It is important to improve marital quality and creat harmonious family spiritual enviromnent for reducing the incidence of children's depressive behavior.

Objective To investigate the degree of health knowledge and needs for health education of urban and rural inhabitants in Tianjin, and to study strategy of health education and health promotion in community. Methods Using a questionnaire survey, 900 inhabitants were investigated on their health knowledge, behavior, access to knowledge, and health education needs. Results The rate of health knowledge awareness was 65.63%, the rate of health promotion was 67.05%. Logistic regression results showed that the education background level (OR=1.323, 95%CI=1.113～1.573) and income per capita monthly(1.607, 1.317～1.962)were the influential factors for the rate of health knowledge awareness (P

Nobel Prize 2009 in Physiology or Medicine is awarded to three American scientists, Elizabeth H.Blackburn, Carol W.Greider and Jack W.Szostak, for the discovery of"how the chromosomes are protected by telomeres and the enzyme telomerase".Telomere is the specific structure at the ends of the chromosomes and protects it from fusion and degradation.Telomerase synthesizes telomere DNA to maintain the telomere length.Studies suggest that telomere length and telomerase activity is directly associated with cell life and the genesis of many diseases.With the progress of study, how to control the telomere length and telomerase activity is helpful to shed light on the studies in"cancer, inherited diseases and senescence", and will stimulate the development of potential new therapies.