Objective To investigate the efficacy of intensity-modulated radiation therapy(IMRT)and the prognosis factors in advanced cervical cancer.Methods A total of 218 cases of cervical cancer patients treated in Affiliated Tumor Hospital,Guangxi Medical University,between July 2007 and July 2012,were divided into IMRT group and routine radiotherapy group (conventional group,94 vs 124 cases).To compare the short-term effects of two groups by Chi-square test,and the incidence rate of 1,3,5-year survival by rank sum test ; to compare the acute and chronic toxicity of the two groups by rank sum test.And to analysis prognostic factors by log-rank test and Cox proportional hazard model and multiple linear regression analysis.Results (1) The effective rate in IMRT group was 95.7％ (90/94),which in the conventional group was 86.3％ (107/124; P ＜0.01).The 1,3,5-year overall survival rates in IMRT group were not significant difference than those in conventional group (87.6％ vs 90.1％,73.4％ vs 81.5％,and 72.3 ％ vs 75.7％ ;all P ＞ 0.05).The rate of acute gastrointestinal toxicity was 41.5 ％ (39/94) in IMRT group,vs 42.7％ (53/124) in conventional group(P ＜ 0.01); and the incidence of acute hematopoietic toxicity in IMRT group was 76.6％ (72/94),which was 78.2％ (97/124) in conventional group (P ＜0.01) ; the incidence of acute genitourinary toxicity was 12.8％ (12/94) in IMRT and 8.1％ (10/124) in conventional group(P =0.248).The late gastrointestinal,genitourinary and hematopoietic toxicities were 18.1％ (17/94),16.0％ (15/94) and 25.5％ (24/94),which were lower than those in conventional group 91.9％ (114/124),47.6％ (59/124) and 56.4％ (70/124),respectively (all P ＜0.01).(2) Univariate analysis showed that the International Federation of Gynecology and Obstetrics (FIGO) stage,histological grade and tumor size were closely associated with 5 years disease-free survival rates and overall survival rates (all P ＜ 0.05).Multivariate analysis showed that FIGO stage and histological grade were closely associated with 5 year overall survival rates (all P ＜ 0.01).FIGO stage and histological grade were independent factors to patients' 5-year overall survival rates in cervical cancer (P ＜0.01).Conclusion IMRT would be to reduce the acute and chronic toxicity,and to improve the quality of patients' life,but did not improve the 5 years survival rate in advanced cervical carcinoma.

Objective We discussed the optimal method for intestinal preparation before colonoscopy examination in order to increase the success rate of intestinal examination and reduce the incidence of adverse effect. Methods We divided 120 patients who were to undergo colonoscopy examination into group A, B and C with 40 cases in each group. Group A received oral magensium sulfate 100ml and 6000ml water after that on the morning of the examination. Group B received oral magensium sulfate 50ml and 2000ml in the evening before the examination, oral magensium sulfate 50ml and 400ml water on the morning of the examination. Group C was given oral magensium sulfate 100ml and 4000～5000 water at the same time. Group A and B took part in appropriate activity and were given health education. The effect of intestinal preparation was compared between the three groups. Results The cleaning degree of group B was better than those of the other two groups (P<0.05). The adverse effect of group B was less than that of group C (P<0.01). Conclusions Oral intake of magensium sulfate in the evening before and on the morning of the examination for intestinal preparation could increase the cleaning degree of intestine, facilitate the observation of disease part and lessen adverse effect. It gave satisfying examination results and made patients satisfied.

Objective To study CT value in diagnosis and differential diagnosis of submandibular tumor.Methods The CT features of submandibular tumors proved by pathology in 20 cases were analyzed retrospectively and compared with pathologic findings. Double-blind was used to evaluate the value of CT in differentiating both malignant and benign submandibular tumors. Results Of 20 patients,8 were benign tumors, 6 appeared as homogeneous density and well-defined, 2 appeared as inhomogeneous density and partial ill-defined.12 case were malignant of them, 10 were irregular in shape, 8 were heterogeneous indensity, 7 were ill-defined, 5 were well-defined in shape, 4 were homogeneous indensity. Double-blind indicated that 75% submandibular tumors could be qualified by CT, but could not determine the histological type of tumors. Conclusion CT can differentiate most of malignant submandibular tumors from benign tumors, but can not be used to categorize the histological type of tumors.

Objective To study the influences of chitosan on swimming time, changes of blood glucose and lactic acid in mice. Methods The test groups were given chitosan by oral administration,and eighteen days later, the swimming time,blood glucose and lactic acid were determined. Results The swimming time of test groups was obviously longer than that of the control group.After thirty-minutes swimming, the elimination of blood lactic acid and the recover of blood glucose were distinctly faster than those of the control group. Conclusion Chitosan had anti-fatigue effect on mice.

AIM and METHODS: To study the effect of Nao-xue-bao at three different doses on blood coagulation,platelet aggregation by observing the changes in activated partial thromboplastin time (APTT), prothrombin time (PT), antithrombin-Ⅲ(AT-III), fibrinogen(Fng), plasminogen(Plg) and platelet aggregation(PAG). RESULTS: Compared with thrombosis group, the rats treated with Naoxuebao showed that the plasma APTT,PT were longer, and the activity of AT-III was increased. The content of Fng was reduced, TT was longer, there was a negative correlation between Fng and TT. Furthermore PAG-1, PAG-5 and PAG-M were reduced. CONCLUSION: Nao-xue-bao could inhibit thrombosis in different keys of blood coagulation.

Objective To investigate the inhibitory effects of docosahexaenoic acid (DHA)and 5-fluorouracil (5-FU)in combination on human gastric cancer cell line AGS in vitro .Methods Human gastric cancer line AGS was treated with different concentrations of DHA and 5-FU alone or in combination.The inhibition of cell proliferation was evaluated by MTT assay.Dose of median (IC50 )of drugs (alone or in combination)and the combination index (CI)were calculated using the median-effect equation and the combination index equation of Chou-Talalay.Flow cytometry was used to detect the cell cycle distribution.The expression of mitochondrial respiratory membrane protein complex in AGS cells was analyzed with Western blot.Results DHA and 5-FU alone or in combination could markedly suppress the proliferation of AGS in significantly time-dependent and dose-dependent manners (P <0.05).IC50 values with DHA or 5-FU administered for 24 h and 48 h were 5 1.60 μg/mL (DHA:24 h),34.82 μg/mL (DHA:48 h),45.90 μg/mL (5-FU:24 h),and 1 6.86 μg/mL (5-FU:48 h), respectively.DHA remarkably strengthened the inhibitory effect of 5-FU and decreased IC50 of 5-FU by 3.56 -2.1 5 folds.The combination of DHA and 5-FU showed synergism.Flow cytometry showed that AGS cells treated with DHA and 5-FU were arrested in G0/G1 phase and the proportion of AGS cells in G0/G1 phase increased compared with that in the control group,DHA group and 5-FU group,while the proportion of the cells in S phase decreased significantly (P < 0.05 ).Western blot showed after treatment with DHA and 5-FU for 48 h,the expression of mitochondrial respiratory membrane protein complex was significantly decreased compared with control group,DHA group and 5-FU group (P <0.05).Conclusion DHA could act synergistically with 5-FU in inhibiting the growth of gastric carcinoma cells,and meanwhile decrease the dose of 5-FU.The mechanism may be associated with cell cycle arrest in G0/G1 phase and interference in the energy metabolism of AGS cells due to inhibition of the expression of mitochondrial oxidative respiratory chain complexes by the two compounds.

BACKGROUND:Adipose-derived mesenchymal stem cels have rich sources that are easily obtained, which can be used to treat acute myocardial infarction. OBJECTIVE: To investigate the therapeutic effect of adipose-derived mesenchymal stem cel transplantation on acute myocardial infarction in rats. METHODS:Rat models of acute myocardial infarction were made and subjected to adipose-derived mesenchymal stem cel transplantation in comparison with model and control (sham operation) groups. RESULTS AND CONCLUSION:Echocardiography findings showed significant improvement in the left ventricular end-systolic diameter, left ventricular end-diastolic diameter and ejection fraction in the cel transplantation group compared with the model group (P < 0.05). Hematoxylin-eosin staining showed that myocardial infarction was evident in the model group, in which, there were rarely viable myocardial tissues and few vessels in the infarcted region, but in the cel transplantation group, there were evident survived myocardial tissues and transplanted cels. The percentage of infarct size was significantly lower in the cel transplantation group than the model group (P < 0.05). Immunohistochemical staining showed that adipose-derived mesenchymal stem cels were able to survive in the infarcted myocardial tissues, and the expression of cardiac troponin T in the cel transplantation group was significantly higher than that in the model group (P < 0.05). Experimental data show that adipose-derived mesenchymal stem cel transplantation can protect the myocardial tissues after myocardial infarction, and effectively improve the myocardial function.

AIM and METHODS:To study the effect of Nao-xue-bao at three different doses on blood coagulation，platelet aggregation by observing the changes in activated partial thromboplastin time (APTT), prothrombin time (PT), antithrombin-Ⅲ(AT-III), fibrinogen(Fng), plasminogen(Plg) and platelet aggregation(PAG). RESULTS:Compared with thrombosis group, the rats treated with Naoxuebao showed that the plasma APTT,PT were longer, and the activity of AT-III was increased. The content of Fng was reduced, TT was longer, there was a negative correlation between Fng and TT. Furthermore PAG-1, PAG-5 and PAG-M were reduced. CONCLUSION:Nao-xue-bao could inhibit thrombosis in different keys of blood coagulation.

Objective To study CT value of diagnosis and identified diagnosis in osteolytic metastases of the vertebral column through describing their CT manifestation.Methods In 46 patients, 72 vertebrae osteolytic metastases were analyzed and compared with X-ray findings of 28 cases.Results In 72 vertebrae osteolytic metastases, there were destruction of 74 corpus vertebrae in 45 patients, of pediculus arcus vertebraes in 22 cases, of processus transverses in 15 cases, of processus spinosus in 11 cases and lamina vertebrae in 11 cases. Micrometastases were concentrated in corpus vertebrae(45/49). CT found the rate of bone-destruction, affection of vertebrae canal and soft tissue around vertebrae were 100%, 67.8% and 71.4%, but the corresponding rates were only 53.6%, 14.3% and 32.1% by X-ray. Conclusion Vertebral column metastases destructed corpus vertebrae at first, vertebral metastases are the origin or base of destruction of the pediculus arcus vertebrae, lamina vertebrae, processus transverses and processus spinous. CT scanning is more sensitive in finding and evaluating the lesions than X-ray plain film.

Objective To study the apoptosis of ovarian carcinoma cell strain COC1 induced by arsenic trioxide (As_2O_3). Methods The effect of arsenic trioxide on the proliferation of ovarian carcinoma cell strains were examined, using Methyl thiazolyl tetrazolium(MTT) assay. Flow cytometry(FCM) was used to detect apoptosis percentage and phase distribution of cell cycles. After being exposed to As_2O_3 solution of different concentration, apoptosis morphologic features of COC1 were observed by TdT-mediated dUTP nick end labeling (TUNEL). Results Inhibition of As_2O_3 on the growth of COC1 was increasing with passing of time and increasing of concentration. After 48h of exposure to 1.5 ?mol/L As_2O_3, COC1 cell strains presented apoptosis morphologic change, and the number of apoptosis cells increased with the passage of time. After treatment with 3.0 ?mol/L or 1.5 ?mol/L As_2O_3, the percentage of COC1 cells in G_2/M phase declined, and the percentage of cells in G_1 phase increased with the passage of time. These results suggested that As_2O_3 inhibited the cellular proliferation of COC1 cells via arrest of cell cycle. Conclusion Arsenic trioxide can induce apoptosis of ovarian carcinoma cell strain COC1. It can block the cell cycle at the G_1 phase, which is one of the possible mechanisms of apoptosis induced by As_2O_3.