Objective To study the expansion and purification of human retinal progenitors cultured in vitro.(Methods Human) embryonic retinal progenitor cells(RPCs) were cultured.The characteristics of neural stem cell were observed.The expression of Nestin was examined flow cytometry(FCM) for the comparsion between the primary and secondary passages.The differentiation of RPCs had been observed after that they had been cultured in different conditions.Results Human RPCs had proliferated and formed cell clusters with a shape of neurosphere.After digestion,the scattered progenitors formed secondary neurosphere-like cell clusters.The cells in those clusters expressed Nestin and were negative for the mature retinal cell proteins.After spontaneous differentiation,the retinal progenitors expressed special proteins of mature retinal cells,including neuron specific enolase(NSE),glial fibrillary acidic protein(GFAP),protein kinase C(PKC) and Syntaxin-1.The expression of Nestin in the secondary culture passage was(39.3?18.9)%,which was significantly higher than that of the primary passage [(28.7?17.7)%](P

Objective To explore the association between epicardial adipose tissue (EAT) thickness and left ventricular remodeling,left ventricular dysfunction in dilated cardiomyopathy (DCM).Methods One hundred and sixteen patients with DCM (DCM group) and 76 healthy subjects (control group) were examined by ultrasoundcardiogram.Left ventricular end-systolic diameter (LVESD),left ventricular end-diastolic diameter (LVEDD),left ventricular end-systolic volume (LVESV),left ventricular end-diastolic volume (LVEDV),left ventricular end-systolic volume index (LVESVI),left ventficular end-diastolic volume index (LVEDVI),left ventricular ejection fraction (LVEF) and EAT thickness were measured or calculated,and the relationship was evaluated.Results EAT thickness in DCM group was significantly lower than that in control group [(4.7 ± 1.2) mm vs.(7.6 ± 2.1) mm],and there was statistical difference (P ＜ 0.05).The linear correlation analysis results showed there was positive correlation between EAT thickness and LVESD,LVEDD,LVESV,LVEDV,LVEDVI,LVESVI (r =0.236,0.220,0.245,0.256,0.282,0.279,P ＜ 0.05),and there was no relationship between EAT thickness and LVEF (r =0.134,P ＞0.05).Conclusions In patients with DCM,there is a correlation between EAT thickness and ventricular remodeling.There is no correlation between EAT thickness and left ventricular dysfunction.

The paper discusses the importance of bioethics,which is a love of life.Bioethics is the ethics of love.Three parts are included in the paper: love is foundation of bioethics;love is core of existence of bioethics;love impels bioethics to further develop.Love instructs the choice of objective bioethics in the toleration circumstance.Furthermore,love can impel the construction of bioethics in the progress of medical beneficence development.

Objective To study the protective effect of Qidan Tongmai Tablet (QDTMT) on the (injury) induced by acute myocardial ischemia. Methods Acute myocardial ischemia was induced by sc isoproterenol (Iso, 5 mg/kg) into SD rats pretreated with ig QDTMT (2 g/kg) for two weeks. Activities of Ca~(2+)-(ATPase) in myocardial mitochondria and content of Ca~(2+) in myocardium and myocardial mitochondria were determined by colorimetric method. The changes of myocardial ultrastructure were investigated by means of transmission electron microscope. Results Compared with the controls, activities of Ca~(2+)-(ATPase) in mitochondrion were strengthened in QDTMT group and the content of Ca~(2+) was decreased ((P

Radiotherapy is an important treatment for malignant tumors, but it will have a negative impact on the reproductive function of young female patients.In recent years, the measures to protect female fertility are increasing, including clinical mature technologies such as embryo cryopreservation and mature oocyte cryopreservation; highly experimental technologies such as immature oocyte in vitro fertilization and ovarian tissue cryopreservation and transplantation.In addition, the application of stem cells and the proposal of artificial ovary also show great prospects in the protection of female fertility.This paper reviews the research progress of female fertility protection strategies in radiotherapy.

Objective To investigate the effect of acupoint massage on vital signs in patients undergoing percutaneous coronary intervention surgery.Methods128 patients underwent percutaneous coronary intervention surgery from January 2014 to June 2016 were divided into the observation group and the control group according to the random number table, 64 cases in each group.The control group were given traditional surgery,and received routine treatment at postoperative rehabilitation period.At the basis of this, the observation group were given acupoint massage.The liver and kidney function indexes, coagulation function, blood routine, heart rate and blood pressure in the two groups were compared.ResultsThe systolic blood pressure was (142.98±18.35mmHg, the diastolic blood pressure was (92.83±17.28) mmHg and the heart rate was (79.4±11.7) times/min in the observation group;the systolic blood pressure was (143.26±17.26) mmHg, the diastolic blood pressure was (82.65 ± 13.17) mmHg and the heart rate was (71.9±12.1) times/min in the control group, the differences in the two groups was statistically significant(P<0.05).The TBIL of the control group was (9.36±3.71)umol·L-1, DBIL was (4.01±1.14)umol·L-1, TP was (53.23±7.29) g·L-1, and the difference was statistically significant (P<0.05, ALB was (32.10±3.17) g·L-1 and BUN was (4.23 ± 1.32) mmol·L-1, which was lower than that of TBIL, DBIL, TP and ALB in the observation group (P<0.05) The levels of PTA and FIB in the observation group were higher than those in the control group.The levels of PT, APTT and TT were lower than those in the control group, the difference was statistically significant (P<0.05).ConclusionAcupoint massage can effectively enhance the liver and kidney function and coagulation function, reduce the blood pressure and heart rate of patients, relieve anxiety and reduce the recovery time of patients.

Objective To analyze thoroughly the related dates in internal and external hospital through data warehouse system.The valuable information is obtained to provide accurate and user-friendly decision support for the hospital.Methods The overall framework of data warehouse system and its key aspects are discussed with using Analysis Services tools for the design of the specific data warehouse system.Results To the HIS data sources and the specific needs of hospital data warehouse,many kinds of themes are designed including the patients component analysis,the component analysis of patients cost,the single disease analysis,cost-benefit analysis and comparative analysis of costs over the same period.Conclusion The data technology has reference value that promotes the application of data warehouse theory in hospital.

Objective:To study the insulin resistance and leptin resistance in women with polycystic ovary syndrome(PCOS).Methods:Body mass index(BMI),serum leptin,fasting blood glucose(FBG),fasting insulin(FINS),serum triglyceride,total cholesterol,high-density lipoprotein,low-density lipoprotein and insulin resistance index(HOMA-IR) were assessed in 30 normal women,30 simple obesity women and 41 PCOS women.Results:①The PCOS patients showed higher levels of BMI,serum leptin,FINS,HOMA-IR and low-density lipoprotein,and lower levels of high-density lipoprotein than that in normal control.Compared to simple obesity women,there only showed higher FINS level and lower BMI in PCOS women.②Serum leptin levels in PCOS patients were concerned with BMI、FINS、HOMA-IR and serum triglyceride levels.③There were no significant difference of the FINS and HOMA-IR between normal women and non obese PCOS women,but the obese PCOS women showed higher levels of FINS and HOMA-IR than that in simple obesity women;the serum leptin levels showed no significant difference between normal women and non-obese PCOS women,simple obesity women and obese PCOS women. Conclusion:PCOS patients may have insulin resistance and leptin resistance;There may have regulative effect between leptin resistance and insulin resistance in PCOS patients;There are direct relationship between insulin resistance and PCOS;The rise of serum leptin level in PCOS women may be the assident manifestation of obesity.

Staphylococcus aureus is one of the common cause of respiratory tract infections in children.Methi-cillin -resistant staphylococcusaureus was reported in 1 960s,then the resistance of other drugs were found in recent years,which leading to many problems in the clinical treatment.Clinician have to master the resistance trend and mechanism of this bacteria and decrease the speed of resistance as much as possible.

By using a self-developed IF power and a ASTM contact material experimental system of small-capacity and variable frequency, the value of arcing characteristics and the welding force of the silver-based contact material are acquired under low voltage, resistive load and small current at 400 Hz and 50 Hz. By means of an electricity-ray analytical balance, SEM and EDAX, the weighing values of the contact materials and the changes of AgCdO, AgNi, AgC and AgW contact material surface profile and micro-area constituent are obtained and analyzed. The arc erosion causes of silver-based alloy contact materials at 400 Hz and 50 Hz are also discussed.