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Objective@#To investigate college students’ energy drink(ED) consumption and associated factors, and to provide a reference for maintaining college students’ mental and physical health.@*Methods@#Stratified cluster sampling was used to select 2 264 college students to complete questionnaires for the condition of energy drinking and associated influencing factors.@*Results@#Within a month, 51.0% college students had drunk ED, 46.8% students’ drinking frequency was ≤9 times, 4.2% students’ drinking frequency was ≥10 times; there were significant differences in different gender, major, grade, BMI, smoking, drinking, gambling and weight controlling behaviors students’ ED consumption frequency(χ2 were 168.91, 149.08, 92.92, 25.20, 83.42, 85.77, 11.50, 20.50 respectively, both P<0.01), the males’(65.6%) was higher than the females’ (38.2%), the sports majors’(74.1%) was higher than the arts’, sciences’ and painting majors’(45.6%, 44.6%, 42.2%), the freshmen and sophomores’(58.9%, 58.2%) were higher than the juniors’(37.4%), the normal and overweight-obesity BMIs’(53.5%, 54.4%) were higher than the too low BMIs’(40.5%), the smokers’(68.4%) was higher than the non-smokers’(45.7%), the drinkers’(63.5%) was higher than the non-drinkers’(43.4%), the gamblers’(62.1%) was higher than the non-gamblers’(49.8%), the dieters’(53.9%) was higher than the non-dieters’(43.2%); the gender, major, grade, smoking, drinking and weight controlling behaviors were associated factors on college students’ energy drink consumption, males‘consumption was more than female’s(OR=3.13), freshmen and sophomores’ consumption were more than juniors’ (OR=2.40, 2.23), the students’ consumption of sports majors was more than that of science and painting major(OR=0.28, 0.48), students with smoking, drinking and losing weight consumed more ED than students without these behaviors(OR=0.77, 0.80, 0.79).@*Conclusion@#More than half college students had drunk ED; society,school and home should pay attention to this phenomenon, and take measures to reduce ED consumption frequency, to maintain students’ physical and mental health.
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Objective :To explore therapeutic effect of metoprolol tartrate combined Danhong injection on patients with unstable angina pectoris of coronary heart disease (CHD—UAP) and its influence on serum levels of brain natri—uretic peptide (BNP) and soluble intercellular adhesion molecule—1 (sICAM—1).Methods : A total of 104 CHD—UAP patients treated in our hospital from Mar 2013 to May 2017 were randomly and equally divided into metoprolol group (received metoprolol based on routine treatment ) and combined treatment group (received Danhong injection based on metoprolol group) ,both groups were continuously treated for two weeks .Onset frequency and duration of angina pectoris ,serum BNP and sICAM—1 levels before and two weeks after treatment ,and incidence of adverse reactions were observed and compared between two groups .Results : After two—week ,clinical total effective rate (84. 62%vs.63. 46%) and ECG total effective rate (90.38% vs.69. 23%) of combined treatment group were significantly higher than those of metoprolol group , P＝0. 014 ,0.007. Compared with before treatment ,there were significant reductions in onset frequency and duration of angina pectoris and serum levels of BNP and sICAM—1 after two—week treatment in two groups , P＝0.001 all ;compared with metoprolol group after two—week treatment ,there were sig—nificant reductions in onset frequency [ (6. 03 ± 0.72 ) times／week vs .(2.69 ± 0.54 ) times／week ] and duration [ (4. 82 ± 0.51) min／time vs .(2. 65 ± 0.70) min／time] of angina pectoris ,serum levels of BNP [ (652.43 ± 97. 15) pg／ml vs .(536. 27 ± 95. 40) pg／ml] and sICAM—1 [ (105.27 ± 29.14) ng／L vs.(81.03 ± 26. 43) ng／L] in combined treatment group , P＝0. 001 all.There was no significant difference in incidence rate of adverse reactions between two groups , P＝0.506. Conclusion : Metoprolol tartrate combined Danhong injection possesses significant therapeu—tic effect on CHD—UAP patients .It can effectively reduce serum BNP and sICAM—1 levels ,onset frequency and du—ration of angina pectoris with high safety ,which is worth extending .
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Objective: To detect the changes of serum level of connective tissue growth factor (CTGF) in patients with ST-segment elevation myocardial infarction (STEMI) and to study the correlation between CTGF level and the maximal activity of creatine kinase-MB (CK-MB). Methods: Our research included 2 groups of patients: STEMI group and unstable angina (UA) group. All patients were treated in our hospital from 2013-07 to 2014-06,n=50 in each group. In STEMI group, the serum levels of CTGF were examined by ELISA at 24h, 2, 7, 14 days of onset, and in UA group, CTGF level was examined at 24h of onset. The CK-MB activity levels were measured in STEMI group at the same time points by immunosuppression method. Results: The serum level of CTGF in UA patients at 24 h of onset was (10.34 ± 2.00) ng/mL, and in STEMI patients were (16.76 ± 3.17) ng/mL at 24h, (29.87 ± 4.90) ng/mL at 2d, (45.02 ± 8.35) ng/mL at 7d and (31.61 ± 4.40) at 14d. The CTGF levels in STEMI group at different time points were all higher than UA group at 24h of onset,P<0.01. In STEMI group, the CTGF levels were increasing from 24h to 7d, then decreasing at 14d, allP<0.01. In STEMI group, the highest protein concentration of CTGF was positively related to the maximal activity of CK-MB at 7 days of onset (r=0.859,P=0.000). Conclusion: CTGF expression has been up-regulated in STEMI patients which might be related to myocardial ifbrosis. The protein level of CTGF is related to MI size, it shows certain predictive value in relevant patients.
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BACKGROUND:Among many transplanted cells,adult autologous bone barrow-derived mononuclear cells have beenused in clinical practice because they are easy to be obtained,without immunological rejection and ethical disputationand other advantages.How to distinguish donor cells from receptors and observe the survival of donor cells following stem cell transplantation still trouble people.OBJECTIVE: superparamagnetic iron oxide (SPIO)particles-labeled bone marrow-derived mononuclear cells from minipigs were used to observe the feasibility of in vivo tracking with magnetic resonance imaging(MRI).DESIGN:A controlled observation experiment.SETTING:Institute of Cardiovascular Disease,Zhongda Hospital Affiliated to Southeast University.MATERIALS:This experiment was carried out in the Institute of Cardiovascular Disease,Zhongda Hospital Affiliated to Southeast University between April 2006 and August 2006.Healthy Chinese minipigs,aged 3 to 4 months,weighing from 20 to 30 kg,were provided by the Experimental Animal Center of Southeast University[SYXK(Su)2002-0012].METHODS: Autologous bone marrow-derived mononuclear cells of minipigs were isolated and cultured. Bone marrow-derived mononuclear cells in the suspension were traced with SPIO particles.Ferrum in the cells were shown by Prussian blue staining, and cell viability was evaluated by trypan blue exclusion method. Eleven minipigs used for preparation of model of myocardial infarction were divided into experimental group(n=9)and control group(n=2).By means of percutaneous left or right cervical artery or femoral artery puncturation, 1.5 to 2.0 mm balloon was used to occlude 1/3 left anterior descending branch,304 to 405 kPa,60 minutes later,ischemic preconditioning was conducted 3 tO 4 times before operation. When pig models of myocardial infarction were successful that was proved by surface electrocardiogram,bone marrow-derived mononuclear cells were percutaneously injected into coronary artery.Coronary arteriography was performed through femoral artery acupuncture at 24 hours after establishing infarction models.Suspension of bone marrow-derived mononuclear cells was perfused into coronary artery with OTW catheter.Then,the injector and OTW catheter for containing cells were rinsed with normal saline containing heparin and infused with the residual cells within 10 minutes.Non-labeled cells were perfused in 2 minipigs of control group by the same method.Postoperatively, bone marrow-derived mononuclear cells were traced by magnetic resonance and compared with Prussian blue-stained myocardial tissue sections.RESULTS: Seven minipigs of experimental group and one minipig of control group were Involved in the final analysis.One of each group was used for preparation of model of myocardial Infarction.One minipig of experimental group died from anesthetic accident before magnetic resonance.①Bone marrow-derived mononuclear cells all were nearly labeled by SPIO particles. Bone marrow-derived mononuclear cells could further proliferate in culture medium containing Fe2O3-PLL without obvious changes of cellular shape. ②T2+WI showed that 5 of 8 models of myocardial infarction presented fuzzy low-echo signal region in peripheral myocardial infarction after transplantation of labeled cells and the low-echo signal disappeared 4 weeks Iater. Ex vivo T2+WI sequence showed there was a dot-distributed low-echo signal region in the peripheral infarction region.③It was found in histological examination that 5 models(cell number over 106) had Prussian blue-positive cells,which distributed the same as those in magnetic resonance signal reducing region.CONCLUSION:SPIO particles-labeled bone marrow-derived mononuclear cells are safe and effective;T2+ WI is sensitive to tracing SPIO particles-labeled bone marrow-derived mononuclear cells;Magnetic resonance can in vivo trace SPIO particles-labeled stem cells transplanted through coronary artery,magnetic resonance signal change is related with the number of stem cells and division growth.
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BACKGROUND: Acute myocardial ischemia can activate the c-Jun N-terminal protein kinase(JNK) and, in turn, the ischemia damage can be aggravated by JNK. While in chronic hibernating myocardium, whether chronic myocardial ischemia can activate JNK1/2 or not and what is the role of JNK1/2 in developing the chronic hibernating myocardium, is not clear.OBJECTIVE :To identify protein expression of JNK1/2 and the p-JNK1/2 changes in chronic hibernating myocardium.DESIGN: Randomly controlled experimental research.SETTING: This study was performed in Cardiovascular Disease Institute, the Affiliated Hospital of Xuzhou Medical College.MATERIALS: Animal models were prepared in the Catheter Department of the Affiliated Hospital of Xuzhou Medical College, protein expression of JNK1/2 and the phosphorylation(p-JNK1/2) changes were measured in the Department of Biochemistry of Xuzhou Medical College. Fourteen small Chinese domestic pigs were randomly divided into two groups, experiment group( n = 8) and control group( n = 6) . Right coronary artery was selected as target vessel in experiment group, and home-made constrictor was delivered through right femoral artery to induce chronic hibernating myocardium and myocardial infarction.MAIN OUTCOME MEASURES: Normal myocardial tissue in control group, normal myocardial tissue and chronic hibernating myocardium sample in experiment group were checked with light microscope and electron microscope,protein expression of JNK1/2 and the phosphorylation changes in myocardium tissue of three groups were analyzed by immunoblotting (Western blotting).RESULTS: p-JNK1/2 was higher in chronic hibernating myocardium of experiment group than that of normal myocardium in experiment and control group. Immunological activity of p-JNK1/2 in control group, normal myocardium, and chronic hibernating myocardium in experiment group was 1,1.42 ± 0.52, 2.6 ± 0.59, respectively.CONCLUSION: JNK1/2 can be activated in chronic hibernating myocardium tissue and also participated in its occurrence and development.
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Objective To evaluate the effect of homemade tirofiban in percutaneous coronary intervention for acute myocardial infarction. Methods Sixty four cases of consecutive acute myocardial infarction were enrolled and divided into two groups: the tirofiban group (n=34) and the control group (n=30). In addition to intravenous heparin, patients in the tirofiban group received a bolus dose of tirofiban (10 ?g/kg) before stenting and followed by a 0.15 ?g/(kg?min) infusion for up to 12-36 hours. The control group only receive routine intravenous heparin therapy before and during PCI. The post operation TIMI blood flow, bleeding events and major adverse cardiac events were observed in the 2 groups. Results A 97.1% of patients in the tirofiban group compared with 76.7% in the control group obtained TIMI grade 2-3 flow respectively. Among them, 91.2% in the tirofiban group but 70.0% in the control obtained TIMI 3 flow. There were no serious in-hospital bleeding complications and MACE. Conclusion Homemade tirofiban is effective in improving the TIMI grade and prognosis of acute myocardial infarction after PCI.
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Objective To evaluate the effects of recombinant human hematopoietic synergistic factor (rhHSF) on rapid mobilization of the peripheral blood stem cells. Methods 8 monkeys were divided into rhG-CSF 10?g/(kg?day) and rhG-CSF 10?g/(kg?day) + rhHSF 500?g/(kg?day) group, with 4 monkeys in each group. All of them received rhG-CSF subcutaneously once daily for 4 days, and in the latter group, the animals received rhHSF subcutaneously in single dose on the fifth day. Results The highest counts of CD34~+ cell, CFU-GM and neutrophils in animals receiving rhHSF only were 23, 1.8 and 3.3 times of baseline value at 180, 45 and 60 min, while those in animals receiving rhG-CSF and rhHSF were 41.3, 8.3 and 4.9 times of base line value. Conclusion rhHSF can rapidly mobilize hematopoietic stem cells and neutrophils into peripheral blood, and it is found to synergize with G-CSF to augment stem cell mobilization, suggesting a potent clinical utility of rhHSF in peripheral blood stem cells transplantation.