Objective To investigate the morphology and the cause of the ascending aortic aneurysm induced by ascending aorta banding. Methods Forty young Wistar rats were divided into two groups:the control group (10 rats) and the experiment group (30 rats).The rat models induced by ascending aorta banding were made.The ascending aortas were taken after operation in 3-5 months,and special staining and immuohistochemical staining technique were performed and observed under light microscope. Results The ascending aortic aneurysms were induced by ascending aorta banding of the young Wistar rats 3-5 months after operation.The occurrence of the aneurysm is 63.3%,and the occurrence of dissecting aneurysms is 36.7%.The expression of MMP-2 and MMP-3 is strong in the ascending aortic aneurysm.Conclusion The occurrence of ascending aortic induced by banding ascending aorta of the young Wistar rat is high,and the expression of MMP-2 and MMP-3 is strong.

Objective To investigate the expression of nuclear factor kappaB(NF-κB) and regulated upon activation normal T cell expressed and secreted chemokine(RANTES) during the formatiom of ascending aortic aneurysm. Methods Forty Wistar rats were randomly divided into the control group(n=20) and the experimental group(n=20).The rat models were made by ligating the ascending aorta. The ascending aortas were taken after ligation for 3months. Immunohistochemistry staining was performed to detect the protein expression of NF-κB and RANTES. The expression of NF-κB and RANTES mRNA were detected by RT-PCR. Results Immunohistochemisry staining results showed NF-κB and RANTES expression significantly increased in aneurysm, while there was a little positive staining in the control group. RT-PCR results indicated that the expression levels of NF-κB and RANTES in the aneurysm were stonger than that of the control group. The expression of NF-κB and RANTES mRNA were remarkably correlated. Conclusion The expression of NF-κB and RANTES in ascendin aortic aneurysm are stronger than that in the control. NF-κB and RANTES may contribute to the pathogenesis of the ascending aortic aneurysm.

Objective To investigate the activity changes of gelatinase in the formation of ascending aortic aneurysm.Methods Thirty five young Wistar rats were divided into two groups:the control group and the experiment group.The rat models induced by ascending aorta banding were made.The ascending aortas were taken after 3-5 months operation,changes of gelatinase activity was observed by gelatin zymography and film in situ zymography.Results Gelatinase activity of ascending aortic aneurysm was significantly increased compared with that of normal ascending aortic aorta.Conclusion Elevation of gelatinase activity may play a significant role in the formation of ascending aortic aneurysm.

Objective To investigate the expressions and significance of transforming growth factor-beta 1(TGF?1) and its typeⅡ receptor(TGF?RⅡ) in experimental rat ascending aortic aneurysm of rat model.Methods The rat ascending aortic aneurysm models were made by banding ascending aorta of young Wistar rats.The ascending aortas were taken 4 months after operation.Immunohistochemistry staining and Western blotting were used to investigate the expressions of TGF?1 and TGF?RⅡ.Result Immunohistochemistry staining results showed that TGF?1 expressed in all layers of the aortic aneurysm and the control.TGF?RⅡ was extensively located in the hyperplastic intima and tunica media smooth muscle cells in the aortic aneurysm,while there was only a little positive staining in the control group.Western blotting results indicated that the expression levels of TGF?1 and TGF?RⅡ in the aortic aneurysm were stronger than the control,P

Objective To Analyze the immunity to secondary infection in the elderly with severe acute pancreatitis.Methods Totally 105 old patients were included in the present study.The ratio of CD4+ to CD8+,and serum levels of tumor necrosis factor-α (TNF-α),interleukin-6 (IL-6),interleukin-10 (IL-10),and interleukin-4 (IL-4) were determined by flow cytometer analysis or ELISA within 3 days after diagnosis of secondary infection.Results Among 105 old patients,58 cases experienced secondary infection.At 3th day after severe acute pancreatitis,the levels of TNF-α,IL-6,IL-4,IL-10,CD4+,CD8+ and CD4+/ CD8+ were (81.3±5.5)ng/L,(141.2±13.7)ng/L,(61.1±7.4) ng/L,(153.8 ±15.2) ng/L,(43.5±5.5)％,(20.7±2.9)％ and (2.4±0.3) in infection group,as compared with those of (50.8±4.7)ng/1,(81.4±11.7)ng/L,(30.8±7.8)ng/L,(100.3± 13.8)ng/L,(31.6±4.6)ng/L,(29.7±3.5)and (1.1±0.4)in control group,respectively,with statistically significant differences betwveen the two groups (t=7.30,6.51,4.87,4.52,2.88,3.41,4.26,all P＜0.05).At 28th day after SAP,the levels of TNF-α,IL-6,IL-4,IL-10,CD4+,CD8 ± and CD4+ /CD8+ were (29.3±5.8)ng/L,(51.7±7.9)ng/L,(33.8±5.1)ng/L,(82.6±9.5)ng/L,(22.1±3.3)％,(47.1±4.3)％ and (0.6±0.3) in infection group,as compared with those of (44.4±5.5)ng/L,(82.2±7.1)ng/L,(65.3±5.5)ng/L,(109.1±9.5)ng/L,(40.5±2.7)ng/L,(33.4±4.5)ng/L and (1.8±0.4) in control group,respectively,showing statistically significant differences between the two groups(t=3.26,4.93,7.32,3.43,7.41,3.81,4.33,all P＜0.05).Conclusions An early excessive immune response and subsequent immune injury is closely related to secondary severe acute pancreatitis.

Objective To discuss the application value of transthoracic echocardiography (TTE) and lower extremity deep venous ultrasonography in patients of pulmonary thromboembolism (PTE) combined with coronary heart disease (CHD).Methods Nine hundred and seventy-four hospitalized patients of PTE in the first hospital of China medical university between December 2010 and March 2015 was enrolled,119 cases of these were combined with CHD (12.22％),including 94 cases of unstable angina and 25 cases of myocardial infarction.To review the general information,embolism area and ultrasonic report of the patients of PTE combined with CHD.The patients were divided into two groups according to whether they were combined with left ventricular systolic or diastolic dysfunction or valvular diseases.To compare TTE parameters between the two groups with two-sample t-test and calculate the sensitivity and specificity of diagnosing imaging massive pulmonary embolism (MPE) by TTE.Results (1) Seventeen cases thrombosis (3.43％) were observed in PTE patients who underwent TTE.The majority were pulmonary artery thrombosis (11 cases).Four cases of thrombosis (5.63％) were observed in PTE patients combined with CHD.The majority were right heart embolus (3 cases).(2) Lower extremity deep venous thrombosis (LEDVT)was observed in 52.60％ of all the PTE patients and 34.62％ of PTE patients combined with CHD.The majority were on the left and the deep venous thrombosis of the calf.(3) Fouty-six cases (64.79％) were PTEindirect signs in TTE.The sensitivity of echocardiography diagnosis of MPE was 84.38％ and the specificity was 52.60％.(4) Pulmonary arterial systolic pressure [(47.90± 21.49) mmHg vs (31.18± 22.43) mmHg(1 mmHg=0.133 kPa),t=3.227,P ＜0.05] and inferior caval vein diameter [(19.66±4.41) mm vs (16.20± 3.46) mm,t=3.598,P ＜ 0.05] in CHD combined with left ventricular systolic or diastolic dysfunction or valvular heart disease were higher than the control group.The differences were statistically significant.Conclusions The proportion of CHD in hospitalized PTE patients was high.TTE could find PTE signs and had high sensitivity for diagnosis ofMPE.TTE could prompt the possibility of PTE combined with left heart disease.

Objective To explore the methods, dosimetric features and short-term effects of partial breast irradiation carried out by three-dimensional external-beam irradiation (3DCPBI) assisted by active breathing control (ABC) . Methods Computed tomography (CT) simulation assisted by active breathing control (ABC) was carried out for each patient and intended to get CT images in condition of 75% deepest inspiration named moderate deep inspiration breath hold (mDIBH). The extent labeled by the silver slips located in the cavity was delineated as gross target volume (GTV) , GTV plus the margin of 15 mm was defined as planning target volume (PTV). 6 MV X-ray was selected as the radiation source and noncoplanar radiation with four three-dimensional conformal fields was used, the described dose was 34 Gy /10f/5d. The volume of GTV, PTV, the affected whole breast, and the percentage of PTV accounted for the affected whole breast , the percentages of PTV included by 100% , 95% and 90% isodose curve, the percentage of volume of the affected breast irradiated by 34. 0, 27. 2, 20. 4, 13. 6 and 6. 8 Gy , and Dmean,D5,V20 of the lungs and heart were calculated respectively. Acute radiation skin response was recorded and the cosmetic effect of the breast after radiotherapy were appraised, with the local tumor control and survival rate followed. Results The mean of volume ratio of PTV and affected whole breast was 14. 88% ; the mean of the volume covered by 90% isodose curve accounted for 92. 54% of the PTV; the volume irradiated by 34 Gy (100% of described dose) accounted for 17. 23% (mean) of the whole breast and 6. 8 Gy (20% of described dose) for 46. 11% , in other words, the volume covered by 20% of described dose was less than 50% of the whole breast. The Dmean, D5, V20 for the affected lateral lung were 1.97, 9. 25 Gy and 1. 58% , it was 0.20, 0. 87 Gy , and 0% for the unaffected lateral lung. The Dmean,D5, V20 for the heart was 0.65 Gy , 2. 82 Gy , and 0. 85%. Zero grade of acute radiation skin reaction was seen in 14 patients and gradel in 3 patients and there was not equal to or more than grade 2 of skin reaction for all the patients. Cosmetic effect were appeci-ated and satisfaction defined as excellent or good appearance of the irradiated breasts for all the patients. No recurrence of local tumor for all of the patients followed for one year. Therefore, the cosmetic result of 1 yr. follow - up was 100% and no recurence was found after 1 yr. follow - up. The 1-year tumor-free survival rate were all 100%. Conclusions For selected patients with early breast cancer after breast-conservative surgery, 3DCPBI assisted by ABC is feasible, however, the selection criteria for the patients, technique protocol and dose fractionation of 3DCPBI and its influence on late cosmetic effect, local tumor control and survival need to be continuously explored and observed in the future.

Objective To evaluate the potential utility of PⅢpeptide in anti peritoneum metastasis in gastric carcinoma cells with high peritoneal metastasis potential(GC9811 P).Methods The adhesion and invasion inhibitory effects of PⅢpeptide on GC9811-P cells were detected by in vitro matrix adhe- sion and cell invasion experiments.By using nude mice metastatic model of human gastric cancer,the effects of PⅢpeptide on peritoneal metastasis of gastric cancer GC9811 P were evaluated.Mice were randomly divided into the experimental(GC9811-P+peptide PⅢgroup)and control groups(GC9811-P +0.9% NaCl solution group),12 mice in each group.At the exhaustion time after inoculation,mice were sacrificed to observe the incidence of peritoneal metastasis,the number of the metastasis foci and the volume of primary tumor.Results Two hours after 40?g PⅢpeptide incubation,the adhesion in hibitory rate reached 86.30%.The adhesion inhibitory effects were in a time dependent manner.The in- vasion inhibitory effects became apparent(81.4%)48 hours after PⅢpeptide insult.After the GC9811- P cells were orthotopic implanted in nude mice and treated with PⅢpeptide,the number of peritoneal metastatic nodes were significantly reduced as compared with control group(3.2?6.5 vs.26.3?5.2) ( P＜0.01).But the mass of primary tumor were (1.9?1.2) g in PⅢpeptide treated group and (2.1?1.0) g in the control group,no difference was noted between two groups(P＞0 05 ).Conclusion PⅢpeptide can markedly inhibit the adhesion,invasion and peritoneal metastasis of gastric carcinoma cell line GC29811-P with high peritoneal metastasis potential

Objective To explore the diversity of resting-state network of brain between the patients with leukoaraiosis and the healthy people. Methods 31 patients with leukoaraiosis (patients) and 27 healthy persons (controls) were checked with resting-state functional magnetic resonance imaging (rs-fMRI), and analyzed with the independent component analysis (ICA) to explore the resting-state functional brain network. Results The resting-state brain network was found in both the patients and the controls, which was coincident with the previous studies. The active areas were the same in both groups, and the activation was weaken in the patients than in the controls, especially in quadrate gyri, posterior cingulate cortex, superior temporal gyrus, superior parietal gyrus, anterior central gyrus, post central gyrus, insula and prefrontal cortex. Conclusion There is a significant diversity of resting-state network of brain between the patients with leukoaraiosis and healthy people in the activation of active areas.

OBJECTIVETo explore clinical effect of manipulative reduction and percutaneous K-wires fixation in treating supracondylar fractures of the humerus in children.

METHODSFrom July 2010 to December 2012, clinical data of 52 children with supracondylar fractures of the humerus, which treated with manipulative reduction and percutaneous K-wires fixation, were retrospectively analyzed. Among them, there were 35 males and 17 females with an average age of 6.7 (ranged from 2.5 to 12) years old. All fractures were type Garland II - III fractures, and 51 cases were extension type and 1 case were flexion type. Flynn evaluation standard of elbow performance score were applied to evaluate clinical effects.

RESULTSAll patients were followed up from 12 to 18 months with average of 16 months. According to Flynn evaluation standard of elbow performance score, 41 cases obtained excellent result, 8 good and 3 moderate.

CONCLUSIONManipulative reduction and percutaneous K-wires fixation for the treatment of supracondylar fractures of the humerus in children has many advantages, such as minimally invasive, rapid recovery, stable fixation. It could prevent osteofascial compartment syndrome, Volkmann Contracture and cubitus varus.

Bone Wires ; Child ; Child, Preschool ; Female ; Fracture Fixation, Internal ; instrumentation ; Humans ; Humeral Fractures ; surgery ; Humerus ; injuries ; surgery ; Male ; Retrospective Studies