Objective This study describes the protective effect of myocardial isehemic post- conditioning on ischemic-reperfused myocardium (I/ R) of diabetic rat and its Signaling mechanism. Methods Healthy SD rats weighing 25O-30Og were divided into 6 groups; (1) Blank control; (2) Ischemia-reperfusion; (3) Post conditioning; (4) Diabetic postconditioning ; (5) Diabetic ischemia-reperfusion; ( 6) Diabetic blank control group. Ten rats in each group were randomly selected. Introduction of diabetic rat model: 65 mg/kg STZ was injected into the intraperitoneal cavity, until 2 consecutive blood glucose measurements≥ 16.65 mmol/L were reached after48h. The diabetic model was successful when rats had following symptoms, such as more drinking, more eating, polyuria, weight loss and epilation. Langendorff isolated rat heart perfusion was used for the experiment. Following parameters were measured and compared: Coronary perfusion flow, myocardial infarct size, western blot for measurement of P-Akt, changes in myocardium and mitochondrian observed by Electron microscopy. Results Blood glucose concentration in diabetic group was (23. 15±2. 16) mmol/L and (4. 16±0. 31) mmol/L in non-diabetic group. There was a significant difference (P <0. 01) between the two groups. There were more coronary flow in post-conditioning groups (Post group and Dpost group) than ischemia-reperfusion groups (IR group and DIR group) (6.5±1.2、5.6±1.0 vs. 3.4±1.0、2.0±1.3). The myocardial infarction size was smaller in post-conditioning groups than in ischemia-reperfusion groups (25.2±2.1、34.2±3.6 vs. 47.5±3.5 、65.2±4.5). There was more expression of P-Akt and the myocardial fibers and mitochondrian in post-conditioning groups were better preserved. Conclusion Postconditioning has protective effects in diabetic rat hearts. The mechanism may be associated with Akt activation.

Objective: To examine the reliability and validity of the Chinese Morphed Emotional Expressions Recognition Test.Methods: The Chinese Morphed Emotional Expressions Recognition Test and the Calder Morphed Emotional Expressions Recognition Test were administered to 57 college students.39 college students were administered the Chinese Morphed Emotional Expressions Recognition Test twice.Results: The internal consistency and test-retest reliability were 0.728 and 0.715(P

Bronchi ; Female ; Follow-Up Studies ; Humans ; Lymph Node Excision ; Lymph Nodes ; pathology ; Lymphatic Metastasis ; Middle Aged ; Pneumonectomy ; Pulmonary Sclerosing Hemangioma ; pathology ; surgery

Objective To investigate the protective effect of the myocaidial ischemic postconditioning on ischemic-reperfused myocardium of rat and its signaling mechanism.Methods Healthy SD rats weighing 250 to 300 g were divided into blank control(N) group,ischemiareperfusion(IR) group and postconditioning(Post) group.We measured heart coronary perfusion flow and myocardial infarct size of the rats in each group.The expression of phosphorylated protein kinase B(P-Akt) was detected by Western blot.The morphological changes of myocardial fibers and mitochondrial were observed under the transmission electron microscopy.Results More coronary flow and less myocardial infarction were found in Post group than those in IR group.The expression level of P-Akt was higher in Post group.The integrity of myocardial fibers and mitochondrial was better in Post group than IR group.Conclusion Postconditioning had a protective effect for the ischemic isolated rat heart.Akt activation might play an important role in its mechinism.

Objective:To promote the rational drug use in the patients treated with ambulatory chemotherapy. Methods:A model of integrated pharmaceutical care was established using such service as the real-time prescription examination, configuration standardi-zation, active care and prescription review. Results:The integrated pharmaceutical care could effectively reduce the unreasonable drug use, optimize drug use structure, lower the medical expenses and provide supporting data for clinical decision-making. Conclusion:The development of integrated pharmaceutical care in the patients treated with ambulatory chemotherapy is an important field for phar-macists displaying professional skills, which can promote the rational drug use. The treatment efficacy and life quality of cancer patients can be improved with the cooperation of doctors, nurses and pharmacists.

Objective To investigate the effects of ischemic postconditioning (Post) on myocardial cell apoptosis and expres- sion of Bcl-2 and Bax protein during ischemia/reperfusion period in rabbits.Methods Eighteen rabbits were randomly allocated to three groups (6 in each group),sham operation (group S),ischemia/reperfusion group(group IR) and ischemic postconditioning group(group Post).Group IR and group Post were subjected to 15 minutes of left anterior descending coronary artery occlusion followed for 30 minutes of reperfusion.Ischemic postconditioning was achieved by three 30 seconds cycles of reperfusion,each followed by 30 seconds ischemia.Cardiomyocyte apoptosis were determined by in situ TDT-mediated dUTP nick end labeling (TUNEL) and DNA electrophoresis.The expression of Bcl-2 and Bax proteins in apoptotic myocardial cells were detected by immunohistochemistry sepa- rately.Results Compared with group IR,apoptotic index was significantly reduced in group Post [(28.06?2.92) % vs.(55.70? 13.96)%,P

Background Oxidative damage may cause the functional dysfunction and death of retinal vascular endothelial cells(RVECs),and further leads to the development of retinal vascular diseases.Fufang xueshuantong has a therapeutic effect on retinal vascular diseases,but little is known about its molecular mechanism.Objective The goal of this study was to investigate the protective effects and mechanism of fufang xueshuantong on injury of human RVECs induced by tert-butyl hydroperoxide(t-BHP).Methods Human RVECs were isolated from healthy donor eyes and primarily cultured and then identified by flow cytometry.The third to fifth generations of cells were used in this experiments.The fufang xueshuantong solution of 0.0625,0.1250,0.2500,0.5000 and 1.0000 g/L were added in the cuhure plate with 5 × 104/L cells respectively in the experimental groups,and t-BHP of 75,100,200 and 300 μ.mol/L were added in the model control groups.MTT was used to detect the A490and survival rate of RVECs.The apoptotic rate and death rate of the cells were evaluated by double staining of Annexin V-FITC/PI.Morphology of human RVECs were examined using invert microscopy and Hoechst33258 staining.The expressions of nitro tyrosine (a marker of oxidative damage of protein)and 8-OHdG(a marker of oxidative damage of DNA)in human RVECs were assessed by the immunofluorescence staining.Western blot was used to detect the expressions of nuclear factorkappa B(NF-KB),p53,bcl-2 and bax after 6,12,24 hours t-BHP action.This study was approved by the Ethic Committee of Zhongshan Ophthalmic Center.Results No significant difference was found in A490value among the normal control group,0.0625,0.1250,0.2500,0.5000 and 1.0000 g/L fufang xueshuantong groups(F =1.989,P＞0.05).The survival rates of the cells were lower in 75,100,200 and 300 μmol/L t-BHP groups compared with corresponding fufang xueshuantong groups(t =14.57,13.82,21.51,32.64,P＜ 0.01).The percentages of normal cells were evidently lower in 75,100,200 and 300 μmol/L t-BHP compared with corresponding fufang xueshuantong groups(t=14.908,5.495,17.165,26.330,P＜0.01).The numbers of deformation and death of the human RVECs increased as the elevated concentration of t-BHP,but those in fufang xueshuantong groups were less than the t-BHP groups under the invert microscopy.Compared with t-BHP groups,the expressions of nitro tyrosine,8-OHdG,NF-KB,p53 and bax were lower but the expression of bcl-2 was higher in human RVECs with the statistically significant differences(P＜0.05).Fufang xueshuantong at the concentration of 0.2500 g/L showed maximally protective effect on human RVECs.Conclusions Fufang xueshuantong protects human RVECs against the t-BHP-induced injury through downregulating the expression of NF-kB,p53,bax and up-regulating the express of the bcl-2 protein.

BACKGROUND: There are many methods for the treatment of femoral head necrosis, such as core decompression, bone graft, arthroplasty and joint replacement, and each of which has its own shortcomings. So, percutaneous bal oon angioplasty combined with coral artificial bone provides a new attempt for the treatment of femoral head necrosis. OBJECTIVE: To observe the effect of percutaneous bal oon angioplasty combined with coral artificial bone on femoral head necrosis repair. METHODS: Twenty-four Duroc piglets were enrol ed to establish bilateral femoral head necrosis models by liquid nitrogen freezing method. Then, model piglets were randomly treated with percutaneous bal oon angioplasty combined with injectable coral artificial bone (experimental group) or bone cement (control group) on one affected side, and meanwhile, given no treatment on the contralateral side (blank control group). At 2, 4, 8 and 16 weeks after surgery, X-ray examination, biomechanical test and histological detection were conducted. RESULTS AND CONCLUSION: X-ray showed that at 16 weeks after surgery, numerous new bones could be found in the experimental group and there was a fuzzy boundary between the artificial bone and surrounding tissues; no new bone formed in the control group, and the boundary was clear; in the blank control group, the surface of the femoral head col apsed, and bone trabeculae arranged disorderly, which were seriously destroyed. And in the histological detection at 16 weeks after surgery, there were numerous bone trabecula and osteoblasts around the coral bone in the experimental group, and the coral artificial bone almost dissolved; in the control group, bone cement was in an irregular shape and no bone trabecula formed; in the blank control group, bone trabecula were damaged in the col apsed area, whose structure was in disorder. Additional y, biomechanical changes in the experimental group were significantly better than those in the other two groups at different time points after surgery (P < 0.05). In conclusion, percutaneous bal oon angioplasty combined with coral artificial bone can repair femoral head necrosis by promoting new bone formation.

ObjectiveTo explore sensitivities and specificities of Nutritional Risk Screening 2002 ( NRS 2002),Subjective Global Assessment (SGA),and Mini Nutritional Assessment (MNA) in the detection of blood prealbumin level.MethodsTotal 126 patients were consecutively enrolled from the oncology departments of three hospitals from November,2010 to March,2011.Nutritional screenings or assessments were performed on the next morning of hospital admission by nutritionists and medical oncologists using NRS 2002,SGA,and MNA.Prealbumin ( ＜ 180 g/L) was used as the reference standard of malnutrition (undernutrition) for assessing the sensitivities/specificities of these tools.ResultsAll 126 patients completed nutritional screening or assessment using the above three tools.The prevalence of malnutrition (undernutrition) determined by NRS 2002,SGA and MNA was 67.0％,46.2％,and 64.8％,respectively.With prealbumin in relation to clinical outcome as the reference standard,the sensitivities ofNRS 2002,SGA,and MNA were 78.2％,58.2％ and 89.1％,and the specificities were 50.0％,72.2％,and 27.8％,respectively.ConclusionsAmong these three tolls,NRS 2002 detects the nutrition risks,whereas SGA and MNA detect malnutrition.Since prealbumin is not an appropriate reference standard,it can not be used for the comparison among the three tools.Nevertheless,NRS 2002 reflects the clinical outcomes,and therefore is suitable for inpatients.

ObjectiveTo investigate the error monitoring and attention network in patients with obsessive-compulsive disorder (OCD).Methods 33 OCD patients and 31 healthy subjects were tested with the error monitoring task and attention network test.ResultsThere wcrc significant differences between the patients with OCD and heath controls on Full Correct(FC),Full Error(FE),the numbers of uncertain,the numbers of dropout in the error monitoring task ( FC ( 121.03 ± 4.41 ) / ( 135.61 ± 3.28 ),FE ( 19.30 ± 3.69 ) / ( 9.45 ± 2.33 ),the numbets of uncertain( 8.27 ± 2.16) / ( 2.87 ± 0.70),the numbers of dropout ( 13.70 ± 2.60 ) / (4.26 ± 1.24 ) ) (P ＜0.05 ).In the attention network test,the comparison between the patients with OCD and healthy subjects on the RT of the alerting network was significant differences (P ＜ 0.05 ).There was a significant correlation between attention network and error monitoring.ConclusionThe impairment of the error monitoring as well as attention network in patients with OCD may be involved in the dysfunction of anterior cingulate cortex.