Objective To analyze and discuss the value and significance of coronary artery bypass grafts in the same period of heart valve replacement in the process of the coronary heart disease with heart valve disease treatment, in order to improve the effect of treatment and reduce the incidence of adverse events. Methods 60 cases with coronary heart disease with heart valve disease , which admitted in our hospital during February 2013-February 2015, were selected as the research objectaccording to random number table method and divided into the-experimental group and the control group , each group of 30 cases according to the principle of double blind control. The experimental group was given the coronary artery bypass grafts in the same period of heart valve replacement and the control group was given the coronary artery bypass grafts without heart valve replacement. The curative ef-fects of different schemes and effects on cardiac function after surgery of the two groups were compared. Results After statistical analysis found thatthe observation indexes of the control group was significantly increased compared with the experimental group, the difference was significant statistically significant (P<0.05). The postoperativecar-diac function indexes of the experimental group was significantly improved then control group , the difference was significant statistically significant (P<0.05). Conclusion Coronary heart disease with heart valve disease in the process of treatment can also take heart valve surgery combined coronary artery bypass surgery. By preoperative and postoperative symptomatic treatment, intraoperative protect myocardium, can effectively prevent and reduce the op-eration of various complications, which is worthy of clinical popularization and application.

Objective: To study the relationships among attributional style, self-efficacy and subjective well-being(SWB). Methods: 269 college students participated the study. Attributional Style Questionnaire , Self-efficacy Questionnaire and Subjective Well-being(SWB) Questionnaire were applied to the college students. Results: ① Attributional style predicated SWB, but three dimensions (internality-externality; whole-part; controllability-uncontrollability)of negative events were significant negative predicators of SWB. ② Self-efficacy was a significant positive predicator of SWB. ③ There were no differences in SWB between sexes and specialities. ④ There were significant differences in SWB between students with different self-efficacy levels, and the SWB of high self-efficacy group was better than that of the low self-efficacy group. Conclusion: College students'attributional style and self-efficacy impact their subjective well-being.Educators should cultivate students's positive attributional style and enhance their self-efficacy.

Objective To study the state of oxidative stress induced by sodium arsenite (NaAsO2) in SV-HUC-1 cell. Methods MTT assay was used to evaluate the viability of the cells. The level of ROS was detected by staining cells with DCFH-DA. The content of GSH and MDA were measured by DTNB and thiobarbituric acid methods. The activity of SOD was measured by xanthine oxidase method. Results Compared with the control group, the viability cells decreased in all the treated groups (P0.05), the activity of SOD in all the treated groups was significantly decreased (P

Objective To study the expression of p73 gene in lung cancer and tumorigenesis, progression of lung cancer in the elderly. Methods The expression of p73 protein in 65 cases of lung cancer, adjacent tissues of cancer and normal tissues was determined by immunohistochemical SABC method. The results were analysed by combining the clinicopathological data and the prognosis. Results The results showed (1)the expression level of p73 protein in the cancer group was significantly different from the rest groups(47 7%,9 2%,4 6%, P 0 05),but it was correlated with the clinical stage (60 5%,22 7%) and survival time of the patients (72 2%,16 0%, P

BACKGROUND:Angelica polysaccharide has the function of enriching blood and promoting blood circulation, but how to improve the hematopoietic microenvironment and promote hematopoiesis has become one of the hot topics. OBJECTIVE: To investigate the effect of angelica polysaccharide on Sca-1+, CD34+ hematopoietic stem cells and intercellular adhesion molecule 1 level in bone marrow stromal cells in mice. METHODS:Mouse models of hemorrhagic anemia were made and then randomly divided them into control group, low-concentration angelica polysaccharide group and high-concentration angelica polysaccharide group. Angelica polysaccharide groups were intraperitoneally injected with the corresponding concentration of angelica polysaccharide (4, 6 mg/kg) for continuous 6 days, while the control group was injected with equal amount of normal saline. General conditions of the model mice were observed. Peripheral blood red cells were counted by automatic blood cell analyzer. Bone marrow hematopoietic stem cels were counted by magnetic bead sorting technique and flow cytometry. Proliferation of bone marrow stromal cells was detected by MTT method. Expression of intercellular adhesion molecule-1 in bone marrow stromal cells was detected by flow cytometry. RESULTS AND CONCLUSION:Angelica polysaccharide had no obvious effect on the body mass of hemorrhagic anemia mice (P > 0.05). The number of peripheral blood cells, the percentage of bone marrow CD34+ and Sca-1+ cells, the number of bone marrow stromal cells and the level of intercellular adhesion molecule 1 were ranked as follows: high-concentration group > low-concentration group > control group (P < 0.05). To conclude, angelica polysaccharide could promote the proliferation of bone marrow stromal cells and increase the expression of intercellular adhesion molecule 1, thereby promoting the proliferation of hematopoietic stem cells and regulating their functional activities.

Objective To discuss the effects and influence of preoperative and postoperative adjunctive intravitreal conbercept in 23G vitrectomy for proliferative diabetic retinopathy (PDR).Methods A retrospective research was performed on 42 PDR eyes from January 2015 to February 2016 in the Second Affiliated Hospital of Nanchang University,who received either intravitreal 0.05 mL conbercept injection 7 days before 23G vitrectomy (group A,n =22) or intravitreal 0.05 mL conbercept injection at the end of 23 G vitrectomy (group B,n =20).The operative time,postoperative vitreous hemorrhage (VH),intraoperative and postoperative other differences of clinical indicators and postoperative best-corrected visual acuity (BCVA) between the two groups were compared.Results The average operation time,intraoperative electric coagulation hemostasis rate,iatrogenic hiatal incidence and intraoperative hemorrhage rate of group A were lower than those of group B (all P ＜ 0.05).BCVA at 6 months after surgery did not differ significantly between two groups (P ＞ 0.05),but the difference was statistically significant between pre-operation and post-operation (P ＜ 0.05).The incidences of early (≤ 1 month) postoperative VH were 18.2％ (4 eyes) and 15.0％ (3 eyes) in group A and B,respectively (P ＞ 0.05).The incidences of later (＞ 1 month) postoperative VH were 27.3％ (6 eyes) and 0 in group A and B,respectively,the difference was statistically significant (P ＜0.05).The percentages of reoperation were 13.6％ (3eyes with postoperative VH) and 10.0％ (2 eyes with traction retinal detachment) respectively in group A and B.The average times of supplementary laser photocoagulation were (2.3 ± 1.0) times and (1.4 ±0.6) times in group A and B,respectively in follow-up period (P ＜ 0.05).Conclusion The adjunctive use of intraoperative intravitreal injection of conbercept can prevent effectively postoperative VH and decrease conveniently the time of supplementary laser photocoagulation in 23G vitrectomy for PDR,as well as the preoperative adjunctive use can decrease the operation time,intraoperative complications and incidences of early postoperative VH.

Magnetic resonance imaging ( MRI ) findings were studied in 19 patients with non-dementia Parkinson′s disease ( PD) Hoehn-Yahr Stage 1 and 1.5 and 38 healthy subjects.The width and area of pars compacta of substantia nigra ( SNc) , substantia nigra ( SN) and midbrain were measured.The width and area ratios of SNc to SN were calculated.Compared with controls, the widths of right SNc was narrower, bilateral ratios of SNc to SN width were decreased in PD group.As to the area of substantia nigra, there was no significant difference between PD and controls.The width of left SN and the ratio of right SNc to SN width was negatively correlation with age of patients.The ratio of left SNc to SN width, the area of bilateral SNc and left SN, as well as the ratio of right SNc to SN area had negative correlation with the disease duration;however, there was no correlation with gender, Hoehn-Yahr Stage, the Unified Parkinson disease rating scale score, mini mental state scale, education years, levodopa equivalent daily dose, Hamilton Depression Scale or Hamilton Anxiety Scale in PD group.The results indicate that there are bilateral structural changes of SN in unilateral PD patients, which may be more significant with increasing disease duration.The measurement of SNc width and SN area can be used as an objective indicator for diagnosis and disease progression monitoring of PD.

Objective To assess the level of radiation exposures of operators in three typical types of interventional fluoroscopic procedures.Methods Alderson Radiation Therapy (ART) phantom was used to stimulate the practices of diagnosis and therapy using TLDs for dose measurement.The radiation exposures of eye lens, neck, and breast were measured when the lead shielding of machine was on/off and the equivalent dose and effective dose to the eye lens were estimated.Results Radiation exposure of head was obviously reduced by 85% -90% when the lead shielding was on.The doses in different procedures were different.In cerebral angiography the dose equivalent of eye len was the highest in the three procedures.The annual effective dose for the operators was smaller in peripheral vascular interventions than that in cardiovascular interventional therapy and that in cerebral angiography.Conclusions The operators involved in intervention will receive an annual effective dose of less than 20 mSv as recommended by the ICRP under the protection conditions provided by the current study, except for eye lens.Attention should be paid to the protection of the eyes of operators.

OBJECTIVE To evaluate the clinical features of tumors primarily in the pterygopalatine fossa, and the efficiency of surgical management for these lesions. METHODS The clinical data of 7 cases with tumors primarily in the pterygopalatine fossa were retrospectively studied. Three of them were primary diseases, i.e. fibrous histiocytoma, neurofibroma and cholesteatoma. The other 4 cases were secondary tumors mainly located in pterygopalatine fossa. There were 1 case with epithelial-myoepithelial carcinoma, 1 case with adenoid cystic carcinoma , 1 case with recurrent inverted nasal papilloma, 1 case with recurrent malignant fibrous histiocytoma. Approaches to tumors in pterygopalatine fossa lesions included lateral rhinotomy, and transnasal or transantrum approaches under the nasal endoscope. RESULTS The patient suffered from adenoid cystic carcinoma developed local recurrence 4 months after operation, and extended resection of the recurrent tumor with laser was performed again. No further recurrence was found after following-up for 3 years. Neither local recurrence nor regional metastasis was found in the remaining 6 cases with a follow-up period of 2 to 4 years. The main complication was oronasal fistula. CONCLUSION CT scan or MRI is the main method to the early diagnosis of pterygopalatine fossa tumors. Lateral rhinotomy, endoscopic trasnnasal or transantrum approaches are feasible procedures to resect the tumors.

Abstract Mental health education of adolescents has received lots attention,while complex systems in sport are of great significance for promoting mental health of primary and middle school students. By comprehensively analyzing relevant findings, the paper discusses the effects of complex systems in sport on mental health problems of primary and middle school students,especially depression,anxiety,sleep,cognition,and social ability,and explores possible strategies associated with complex systems in sport to promote mental health of primary and middle school students,aiming provide data for effective sports health education among school teachers.