Objective To investigate the 9 . 4 T of DTT in the diagnosis of SD rat C6 cerebral gliomas model about the change of CST on tumor progression and pathology confirmed. Methods ①10 μl C6 cell suspension of 106 cells number were implanted into the right caudate nucleus of brain hemisphere of 20 adult male SD rat with ster-eotactic technique. ②Application of 9. 4 T of DTT and DTI, meanwhile the routine T1-weighted imaging(T1WI), T2-weighted imaging(T2WI), contrast-enhanced T1WI,FLAIR imaging and diffusion tensor of the brain were ac-quired. Anatomic relationship between cerebral glioma and surrounding white matter fiber tracts was analyzed and measured the values of FA and MD in different areas on fractional anisotropic ( FA) map, color-coded directional map, three-dimensional (3D) white matter fiber tracts map, then stained with routine HE. Results All of SD rat C6 cerebral gliomas models 3 D white matter fiber tracts map by means of FA maps of DTI were successfully comple-ted. Apparently significant differences of FA values were found in solid tumor, surrounding edema, compared with normal white matter regions ( P<0.05 );but there was no significant difference among solid tumor and surrounding edema region (P>0.05);there were significant differences of MD values between solid tumor, surrounding edema and normal white matter region ( P<0.05 ) . Conclusion The 9 . 4 T of DTT offers the optimal visualization of An-atomic relationship between cerebral glioma and surrounding white matter fiber tracts in the different periods of the tumor moder.

Objective To investigate the role of atrial natriuretic peptide(ANP) and endothelin 1 (ET-1) of newborns with congenital heart failure and its clinical significance.Methods One hundred newborns with congenital heart disease were selected as our subjects.They were divided into 3 groups according to cardiac function grading criteria and that were grade Ⅰ group(30 cases),grade Ⅱ group(40 cases) and grade Ⅲ-Ⅳ group(30 cases).Another 30 normal newborns were served as control group matched with age,gender.ET-1,ANP were detected.Results The levels of ET-1 and ANP in newborns of grade Ⅲ-Ⅳ were (132.35 ±5.26) ng/L and (9.25 ± 2.37) pmol/L,significant higher than that in control group((53.62 ± 3.81) ng/L and (1.15 ±0.09) pmol/L;P ＜0.01).As the severity of the disease in newborns with congenital heart failure,the level of ET-1,ANP were activated more.There was a positive correlation between ET-1 and grade of cardiac function (r =0.35,P ＜ 0.01).Meanwhile,it also showed a positive correlation between ANP and cardiac function (r =0.72,P ＜ 0.01).Conclusion ET-1,ANP in newborns with congenital heart disease are activated with characterized of chronic heart failure,and related to severity of the disease.

Objective To study the effects of nitric oxide (NO) synthesis on serum interleukin 1? (IL-1?) and tumor necrosis factor ? (TNF-?) levels in liver ischemic preconditioning (IP) in rats. Methods 169 rats were randomly divided into ischemia/reperfusion (I/R) group, IP group,L-arginine plus IP (L-Arg+IP) group and sham operation group (S group). The concentrations of plasma NO, serum IL-1? and TNF-? were measured at 2h, 24h and 1 week after models were set up. Results ⑴ Plasma NO concentrations: In group IP and group L-Arg+IP,the NO concentration at all the 3 time points were significantly higher than those in group S (P0 05). Conclusions Liver ischemic preconditioning could down-regulate the levels of blood IL-1? and TNF-?, which may relate to the increase of NO synthesis. The increase of NO synthesis could enlarge this down-regulation effect, and further enhance the protective effect of IP on the liver I/R injury.

Breast cancer is called "Ruyan" in literature of traditional Chinese medicine. We synthesized the ancient and contemporary discussions and raised the theory that "Duxie" (poisonous pathogenic factor) is the etiological factor and pathologic product through the whole course of breast cancer. "Liuyin Fudu" (latent poison of six exogenous pathogenic factors) and "Qiqing Yudu" (stagnant poison of seven emotions) are the main etiological factors affecting the breast cancer occurrence. "Aidu Neisheng" (internal product of cancer poison) is the essential change in breast cancer occurrence. "Tandu Yujie" (stagnation of phlegm, poison and blood stasis) is the essential pathogenesis of the breast cancer's development. "Yudu Weiqing" (vestigial poison) is the main pathogenesis of breast cancer after operation. "Yudu Pangcuan" (vestigial poison invasion elsewhere) is the key pathogenesis of recurrence and metastasis after operation. "Sanjie Jiedu" (dispersing accumulation and detoxification) is an important therapeutic principle in breast cancer's treatment after operation. The "Tandu Yujie" pathogenesis theory and "Sanjie Jiedu" therapeutic principle developed the theory about breast cancer in traditional Chinese medicine, and have some clinical application value.

OBJECTIVE: To observe the effect of Ruyiping, a traditional Chinese compound herbal medicine composed of 5 Chinese herbs for removing toxic materials and dissipating nodules from Runing II, another traditional Chinese compound herbal medicine for treating breast cancer, in preventing recidivation and metastasis in breast cancer patients after operation. METHODS: Eighty patients with breast cancer after operation were randomly divided into Ruyiping group and Runing II group, and prescribed Ruyiping and Runing II on the basis of chemotherapy, radiotherapy and endocrine therapy respectively for two years. RESULTS: There were two patients with metastasis and three patients lost to follow-up in Ruyiping group and three and two in Runing II group. The recidivation and metastasis rates were 5.41% and 7.89% respectively. The difference between the two groups was not statistically significant (P>0.05). The difference of disease-free survival time between the two groups was also not statistically significant. CONCLUSIONS: The effect of Ruyiping in preventing recidivation and metastasis is similar to that of Runing II. Ruyiping is the essential component of Runing II for preventing recidivation and metastasis. The result provides some clinical evidences for the theory that "Yudu Pangcuan" (vestigial poison invasion elsewhere) is the essential pathogenesis of breast cancer's recidivation and metastasis and the utilization of "Sanjie Jiedu" (dispersing accumulation and detoxification) is the therapeutic principle in preventing recidivation and metastasis after operation.

Objective To understand and analysis of the pathogens distribution and drug resistance of nosocomial infection in children′s hospital,so as to provide reliable scientific basis for the prevention and control of hospital infection.Methods 396 cases of upper respiratory tract specimens were collected from pediatric patients with nosocomial infection.These specimens were detected by sputum specimens conventional methods of microorganism cultivation,and K-B method was used to determine the bacteria sensi-tivities to clinical common drug.Results There were 225 cases of specimens were pathogen positive among all the 396 specimens, and 234 strains of bacteria were isolated in all.The positive isolated rate was 56.8%(225/396).Among the 234 isolated strains, Gram negative bacteria accounted for 72.6%(170/234),and Klebsiella occupied the first place[49.4%(84/170)].Gram positive bacteria accounted for 23.5%(55/234),and Staphylococcus had the highest isolated rate in Gram positive bacteria[58.2% (32/55)].In all the 9 kinds of clinical common antimicrobial agents,imipenem had high drug sensitivity to the 234 isolated strains,and the aminoglycosides came next.Conclusion It is necessary for the pediatric patients with nosocomial infection to collect upper re-spiratory tract specimens for bacteriologic studies and drug sensitivity tests.

Objective To establish an animal model of acute superior mesenteric artery embolization suitable for follow-up embolectomy study. Methods Via the femoral artery approach selective catheterization of the main branch of superior mesenteric artery with a 8 F-guiding catheter was performed in 8 hybrid dogs,which was followed by the injection of auto-clots prepared in vitro until the main branch of superior mesenteric artery was completely occluded,which was confirmed with angiography. Follow-up angiography of superior mesenteric artery was carried out 2,4,6 and 8 hours after the procedure to check the stability of the auto-clots and the embolization. Intraperitoneal explore through abdominal incision was performed and abnormal bowel was taken out for pathologic examination. Results The acute superior mesenteric artery embolization model was successfully established in all 8 dogs. Intestinal ischemia was found in all of the 8 dogs. Macropathologically and microscopically,the intestinal ischemic damage deteriorated gradually with time. Conclusion Interventional technique can successfully establish appropriate animal model of acute superior mesenteric artery embolization,which is suitable for the follow-up embolectomy study.

Henoch-Schonlein purpura (HSP) is one of the most common clinical manifestations of systemic small vasculitis in children with non-thrombocytopenic, and mainly manifested as skin purpura, arthritis, gastrointestinal symptoms and Henoch-Schonlein purpura nephritis (HSPN). The severity of renal involvement is the main factor determining the long-term prognosis of children with HSP.Studies have revealed that the determination of pentraxin 3 (PTX3) in serum can be used for early diagnosis of HSPN and prediction of renal injury.In this paper, the origin, gene and protein structure, function, potential relationship and mechanism of action between PTX3 and HSP were discussed, so as to provide new ideas for the early diagnosis and treatment of HSPN.

Objective To investigate the influence of difference ileocecal junction length on the efficacy of laparoscopic subtotal colectomy combined with antiperistaltic cecorectal anastomosis (LSCACRA) in treatment of slow transit constipation (STC). Methods Ninety- two STC patients undergoing LSCACRA were divided into 2 groups by random digits table method:10-15 cm group (10-15 cm ascending colon preserved above ileocecal junction, 46 cases) and 2-3 cm group (2-3 cm ascending colon preserved above ileocecal junction ,46 cases). All the patients were followed up for 24 months, and the Wexner incontinence score (WIS), ileocecal junction emptying time of barium enema, Wexner constipation score (WCS), abdominal pain intensity score (NRS), gastrointestinal quality of life index (GIQLI), abdominal pain frequency score and abdominal bloating frequency score were compared between 2 groups. Results All the patients successfully completed LSCACRA, with no conversion to open surgery and death occurred. There were no statistical differences in amount of bleeding, operative time, hospitalization time, exhaust time, incidences of postoperative intestinal obstruction and pulmonary infection, defecation time, WIS and abdominal bloating frequency score between 2 groups (P>0.05). The WCS, GIQLI, NRS and abdominal pain frequency scores 6, 12 and 24 months after operation in 2-3 cm group were significantly better than those in 10 - 15 cm group, WCS: (1.7 ± 1.3) scores vs. (4.2 ± 2.3) scores, (1.7 ± 1.1) scores vs. (4.1 ± 1.9) scores, (1.2 ± 0.5) scores vs. (3.9 ± 2.5) scores;GIQLI:(116.8 ± 6.2) scores vs. (98.5 ± 14.7) scores, (122.9 ± 7.5) scores vs. (104.7 ± 16.5) scores, (124.3 ± 5.9) scores vs. (108.3 ± 15.1) scores; NRS: (1.3 ± 0.5) scores vs. (2.5 ± 1.7) scores, (0.9 ± 0.3) scores vs. (2.3 ± 1.4) scores, (0.8 ± 0.3) scores vs. (2.2 ± 1.5) scores;abdominal pain frequency score:(0.9 ± 0.3) scores vs. (1.6 ± 1.2) scores, (0.7 ± 0.3) scores vs. (1.4 ± 1.1) scores, (0.7 ± 0.2) scores vs. (1.2 ± 1.0) scores, and there were statistical differences (P<0.05). The ileocecal junction emptying time of barium enema 24 months after operation in 2-3 cm group was significantly shorter than that in 10-15 cm group: (17.6 ± 8.4) h vs. (21.3 ± 10.8) h, and there was statistical difference (P<0.05). Conclusions STC patients with LSCACRA is safe and effective. The shorter length of ascending colon preserved above ileocecal junction can improve the efficacy of LSCACRA in the treatment of STC and the prognosis of patients. The 2-3 cm length of ascending colon preserved above the ileocecal junction should be recommended.

Objective To explore the effect of pathogenesis,diagnosis,therapy and prevention of portal vein thrombosis(PVT) after devascularization.Methods Data of 86 patients who underwent devascularization because of cirrhotic portal hypertension between January 2009 and December 2014 were retrospectively analyzed.Patients were divided into preventive anticoagulant treatment group (46 cases) and nonpreventive anticoagulant treatment group (40 cases) according to whether or not to receive prophylactic anticoagulant therapy.Compared the causes of PVT and clinical characters.Results The occurrence of PVT was 10.9％ (5/ 46) in preventive anticoagulant treatment group,PVT Ⅰ , Ⅱ, Ⅲ, Ⅳdegree were 2,3,0,0 cases,and that was 32.5％ (13/40) in nonpreventive anticoagulant treatment group, PVT Ⅰ , Ⅱ , Ⅲ, Ⅳ degree were 4,7,2,0 cases, the incidence rate of treatment group was lower than control group (x2 =9.735, P ＜ 0.05).There was no relationship in PVT with sex, age, and intraoperative ligation of splenic artery beforehand (P＞0.05).There were apparent correlation in PVT with centrifugal-flow of portal vein and peak value of platelet count(P＜0.05).All patients discharged uneventfully after anticoagulant treatment, including 2 cases of thrombolytic and 4 cases of blood supply recanalization, no case died from PVT.Conclusion The definite cause of PVT after devascularization is centrifugal-flow of portal vein and the peak value of platelet count (300-499) × 109/L is a pivotal risk factor.The key point of therapy is early diagnosis and early anticoagulant treatment.