1.Investigation on entrepreneurial cognitive level of students in Southern Medical University and entrepreneurship education
Min SONG ; Yuejin XU ; Liming LIANG
Chinese Journal of Medical Education Research 2013;(7):748-751
Objective To explore influencing factors of the individual entrepreneurship from as-pects of entrepreneurial intention, entrepreneurial cognition and entrepreneurship education. Methods Questionnaire of entrepreneurial cognition was conducted for 1860 students in Southern Medical Universi-ty. SPSS was used to analyze the data. Results ①Entrepreneurship intention among university students were strong.②There was a lack of awareness of college students entrepreneurship policy among college students. ③Students never receiving entrepreneurship education accounted for 65%, but 89%students held that entrepreneurial education courses was necessary. Conclusions Due to arduous professional tasks, medical students have compelling and demanding need for personalized entrepreneurship educa-tion. Initiative participation of library in integrating of entrepreneurship education information by using advantageous resources plays a important role in entrepreneurship education.
2.Identification of suppressive oligodeoxynucleotide existed in DNA sequence encoding Schistosoma japonicum 22.6 kDa antigen
Wei HU ; Mingjuan TAN ; Yong WANG ; Yuejin LIANG ; Li ZHANG
Chinese Journal of Schistosomiasis Control 1989;0(02):-
Objective To identify the possible existing suppressive oligodeoxynucleotides(ODNs)in the DNA sequence which encodes Schistosoma japonicum 22.6 kDa(Sj22.6)antigen.Methods Several ODNs within the DNA sequence encoding Sj22.6 antigen were synthesized.Splenocytes separated from mice were stimulated with optimal immunostimulatory CpG 1826 in the absence or presence of different synthetical ODNs.The suppressive efficacy of each ODN was examined by 3H-TdR incorporation.Results ODN F311 suppressed the proliferation of splenocytes caused by CpG 1826 stimulation.The significant suppression was observed when ODN F311∶CpG 1826 at a ratio of 1∶1 and 3∶1,the suppression reached 11% and 58% respectively.The maximal inhibition was observed when ODN F311 was pre-administered with CpG ODN for 2 h.Conclusions Certain suppressive ODN exists in the DNA sequence encoding Sj22.6 antigen,and this effect shows dose-and time-dependent manner.
3.Changes of NKT cells in livers and spleens of mice infected with Schistosoma japonicum
Yaping LIU ; Yuejin LIANG ; Xinjuan SUN ; Dan ZHENG ; Jie LUO ; Yong WANG
Chinese Journal of Schistosomiasis Control 1989;0(03):-
Objective To understand the changes of NKT cells in the livers and spleens of mice infected with Schistosoma japonicum.Methods Twenty-four female BALB/c mice aged 6-8 weeks were randomly divided into 4 groups.Three groups of mice were infected with(14?2)cercariae of S.japonicum.In 3,6 and 12 weeks post-infection,the mice were randomly chosen from each group and sacrificed resectively and the lymphocytes were harvested from the livers and spleens.The cells were stained with fluorescein-isothiocyanate(FITC)-conjugated anti-mouse pan-NK cells(CD49b)and phycoerythrin(PE)anti-mouse CD3e monoclonal antibodies,respectively.The proportion of NKT cells was analyzed by flow cytometry.In the experiment in vitro,the lymphocytes from spleens of normal mice were harvested and stimulated with SEA,the protein constituents of eggs and lipid constituents of eggs,respectively.The proportion of NKT cells was also analyzed by flow cytometry.Results The proprotion of splenic NKT cells in lymphocytes in 12 weeks post-infection was(4.73?0.41)%,which was significantly higher than that of the control(2.07?0.12)%(P
4.Study on antibiotic resistance of Neisseria gonorrhoeae in Nanning for 5 years
Bangyong ZHU ; Xiumei ZHAO ; Shanlie QIN ; Shiyuan LI ; Quan GAN ; Yuejin LIANG
Chinese Journal of Laboratory Medicine 2003;0(10):-
Objective To study the antibiotic resistance of Neisseria gonorrhoeae and the prevalence of penicillinase-producing Neisseria gonorrhoeae (PPNG) and high-level tetracycline resistant Neisseria gonorrhoeae (TRNG) in Nanning. Methods Minimum inhibitory concentrations (MIC) were determined by agar dilution method and ?-lactamase production was comfirmed by acidometric method.Results Among 458 strains, 33 strains(7.20%) were found to be PPNG and 231 strains(50.44%) were TRNG. The resistance rate to ciprofloxacin, ceftriaxone and spectinomycin were 87.33%, 1.31% and 0.22% respectively. Conclusion The situation of resistance to ciprofloxacin was very serious, and it was also found that a few of gonococcal isolates were resistant to ceftriaxone and spectinomycin. The study showed that it is important to successively survey the antibiotic resistance of Neisseria gonorrhoeae.
5.Protective effect of Tongxinluo on mini-swine model of acute myocardial infarction and reperfusion damaged by oxidative stress
Lian DUAN ; Yuejin YANG ; Haitao ZHANG ; Yutong CHENG ; Sheng KANG ; Jinglin ZHAO ; Liang MENG ; Yi TIAN ; Jue YE ; Xianmin MENG
Chinese Journal of Pathophysiology 2010;26(3):430-434
AIM: To assess the degree of oxidative damage during acute myocardial infarction and reperfusion, and to clarify the protective effect of Tongxinluo in mini-swine model. METHODS: Thirty mini-swines were randomized into 5 study groups: sham group, model group, low dose (0.05 g·kg~(-1)·d~(-1)), medium dose (0.2 g·kg~(-1)·d~(-1)) and high dose (0.5 g·kg~(-1)·d~(-1)) of Tongxinluo groups (pretreated with Tongxinluo for 3 d). Animals except in sham group were subjected to 3 h of coronary occlusion followed by 1 h of reperfusion. Concentrations of total antioxidative capability (T-AOC), total superoxide dismutase (T-SOD), reduced glutathione (GSH) and malondialdehyde (MDA) in blood sample and the myocardium were measured. RESULTS: (1) T-AOC, T-SOD and GSH in serum significantly decreased (all P<0.05), while MDA significantly increased (P<0.01) at 3 h after AMI in comparison with those at baseline. Compared to those at 3 h after AMI, the contents of T-AOC, T-SOD and GSH at 1 h after reperfusion significantly decreased (all P<0.01), accompanied by increase of MDA (P<0.01). (2) Compared to those in normal area, levels of T-AOC, T-SOD and GSH in reperfusion myocardium decreased significantly (all P<0.01) and MDA increased significantly (P<0.01). T-AOC, T-SOD and GSH in no-reflow myocardium further decreased (all P<0.01) and MDA increased (P<0.01) as compared to those in reperfusion myocardium. (3) Compared to model group, medium dose of Tongxinluo increased the contents of T-AOC and T-SOD and reduced MDA production in serum at 3 h after AMI (all P<0.05), while medium dose of Tongxinluo increased T-SOD level at 1 h after reperfusion (P<0.05). High dose of Tongxinluo increased the levels of T-AOC and T-SOD and decreased MDA content in serum at 3 h after AMI and 1 h after reperfusion (all P<0.05). (4) The medium dose of Tongxinluo increased T-AOC content (P<0.05) and reduced MDA (P<0.05) in reperfusion myocardium, while high dose of Tongxinluo increased T-AOC, T-SOD and GSH (all P<0.05), reduced MDA (P<0.01) in reperfusion myocardium, and also increased T-AOC, T-SOD (all P<0.05), reduced MDA (P<0.01) in no-reflow area as compared to those in model group. CONCLUSION: Impairment of antioxidant defense system in vivo and imbalance of redox homeostasis in myocardium region might play an important role in the pathogenesis of no-reflow after myocardial acute infarction following reperfusion. Tongxinluo protects myocardium from reperfusion injury by improving antioxidant defense and attenuating oxidative damage.
6.Aortic Root Imaging and Clinical Application in 15 Patients With Transcatheter Aortic Valve Implantation--A Single Center Early Experience
Moyang WANG ; Liang XU ; Hanjun PEI ; Siyong TENG ; Haitao ZHANG ; Bin LV ; Hao WANG ; Yuejin YANG ; Yongjian WU
Chinese Circulation Journal 2014;(9):714-717
Objective: To study the aortic root imaging and clinical application in 15 patients with transcatheter aortic valve implantation (TAVI).
Methods: A total of 15 patients with severe aortic valve stenosis received TAVI in our hospital from 2011-03 to 2013-11 were studied. The CT scan and transthoracic echocardiography were conducted to measure the aortic root anatomy and the differences of annulus size between CT and echocardiography were calculated. The prosthetic valves were selected based on CT measurement. The pre-operative accuracy of measurement was evaluated by the follow-up study at 6 months after operation.
Results: The CT measured pre-operative aortic annulus short diameter was (21.5 ± 2.4) mm, long diameter was (27.3 ± 2.7) mm, the average inner diameter was (24.4 ± 2.4) mm, left ventricular out lfow (LVOF) tract long diameter was (28.3 ± 4.5) mm, the average inner diameter of LVOF was (24 ± 3.5), ascending aorta diameter was (35.3 ± 4.4) mm. The Venus Medtech A-Valve implanted in 8 patients with #26 and in 7 patients with #29. The average inner diameter of aortic annulus measured by CT was larger than transthoracic echocardiography, P<0.001. During 6 months follow-up period, no patients had aortic root rupture, coronary obstruction, moderate and severer aortic and peri-aortic regurgitation. There were 4 patients with atrio-ventricular block and received permanent pacemaker implantation.
Conclusion: There is a difference for aortic annulus size by CT and transthoracic echocardiography measurements. CT may presisely assess the aortic root morphology and provide strong support for TAVI.
7.One-year outcomes of percutaneous renal denervation for the treatment of resistant hypertension: the first Chinese experience.
Hui DONG ; Xiongjing JIANG ; Tuo LIANG ; Yubao ZOU ; Ting GUAN ; Meng PENG ; Lei SONG ; Huimin ZHANG ; Haiying WU ; Bo XU ; Yuejin YANG ; Runlin GAO
Chinese Medical Journal 2014;127(6):1003-1007
BACKGROUNDAs a novel device-based approach targeting the renal sympathetic nerves, percutaneous renal denervation (RDN) has been shown to be effective and safe for reducing blood pressure. However, while considerable data on RDN have been obtained from Western populations, there is limited findings from East Asian populations. The purpose of this study was to evaluate one-year outcomes of RDN for the treatment of resistant hypertension in Chinese patients.
METHODSBetween February and August 2012, 14 patients (mean age 39 ± 8 years, 10 males) with resistant hypertension underwent successful RDN at the Fuwai Hospital. All 14 patients were followed up at 1, 3, 6 and 12 months post-procedure. Blood pressure, use of antihypertensive agents, renal function, and complications were investigated.
RESULTSBaseline values included mean office blood pressure of 164/103 ± 14/10 mmHg, mean 3.9 ± 0.6 anti-hypertensive agents, and an estimated glomerular filtration rate of (79 ± 19) ml × min(-1)×1.73 m(-2). Office blood pressure after the procedure was reduced by -14/-10, -17/-11, -21/-12, and -24/-14 mmHg at 1, 3, 6, and 12 months respectively, and the reduction of the number of antihypertensive agents at the above corresponding time points was -1.3, -1.5, -1.7 and -1.8 respectively (all P < 0.001). The mean reduction of 24-hour ambulatory blood pressure was similar to the reduction of office blood pressure at the four corresponding time points. Renal function did not significantly change at any time point (all P > 0.05). No clinical complications were observed at 12-month follow-up.
CONCLUSIONThis study showed that RDN seems to be effective in reducing blood pressure of Chinese patients with resistant hypertension, with minimal adverse events at 12-month follow-up.
Adult ; Antihypertensive Agents ; therapeutic use ; Blood Pressure ; drug effects ; Female ; Glomerular Filtration Rate ; physiology ; Humans ; Hypertension ; drug therapy ; Male ; Middle Aged