The use of adjuvant extemal-beam RT is well established in the postoperative treatment of glioblastoma multiforme (CBM).It is consensus that target volume should be determined based on the fusion images of MRI and CT,but the inclusion of peritumoural edematous is controversial.The vast majority of recurrences occur within 2 cm of the original tumor site orin radiation field.There is no inevitable relation between the degree of peritumoral edema and recurrence model.The clinical and pathological characteristics may be as predictive and prognostic factors for the treatment of GBM.Target volume delineation for CBM tend to individual,which can maintain known outcomes and reduce treatment toxicity.

A new biosensor was prepared based on conductive polymer poly ( 3 , 4-ethylenedioxythiophene ) ( PEDOT) and 1-pyrenebutanoic acid ( PBA) through π-π stacking, as well as hematin associated with PBA through coordinate bonds of Zr4+ and carboxyl group. Its stability and sensitivity were examined by cyclic voltammetry ( CV) , electrochemical impedance spectroscopy ( EIS) and current-time ( i-t) method. A pair of well defined and quasi-reversible redox peaks was observed when GCE/PEDOT/PBA/hematin was tested by CV in PBS without oxygen. The electron transfer rate constant was estimated to be 4. 8 s-1 . Results indicated that the PEDOT film enhanced the electron transfer process of hematin. When the i-t method was used to detect the response of biosensor to catechol with different concentrations, it displayed a linear response for the reduction of catechol in the range of 0. 5-200 μmol/L. The linear equation was i=0. 018C+0. 006 ( R=0. 9998), and the detection sensitivity was 0. 258 μA (μmol/L· cm2) with a detection limit of 0. 33 nmol/L (S/N=3). The results illustrate that the GCE/PEDOT/PBA/hematin biosensor is very sensitive and stable.

Objective　To investigate the mechanism for that insulin facilitates increase of glucose uptake. Methods　The expression of myocardial GLUT4 polypeptide was determined by semiquantitative immunoblotting. The expression of GLUT4 mRNA was determined by semiquantitative Northern blotting. Results　After infusing insulin for 8　hours，the　expression　of　GLUT4 mRNA and GLUT4 polypeptide was significantly higher in canine myocardium than in　those　found normal ones. The glucose uptake was upregulated at　the　same　time．Conclusions　Our findings suggest that insulin facilitates the expression of GLUT4 mRNA and GLUT4 polypeptide in canine hearts. Enhanced GLUT4 expression is one of the important molecular mechanism by which myocardial cells enhance glucose uptake by insulin stimulation.

AIM: To investigate the mechanism underlying insulin-stimulated increase in glucose uptake during low-flow myocardial ischemia. METHODS: The expression of myocardial GLUT1 polypeptide was determined by semiquantitative immunoblotting. The expression of GLUT1 mRNA was determined by semiquantitative Northern blotting. RESULTS: After infusing insulin during low- flow myocardial ischemia for 8 h,the expression of both GLUT1 mRNA and GLUT1 polypeptide was significantly higher in experimental myocardium than that in normal myocardium. The glucose uptake was upregulated at the same time in the exprimental myocardium. CONCLUSION: Insulin enhances the expression of GLUT1 mRNA and GLUT1 polypeptide in ischemic myocardial regions. GLUT1 expression may be an important mechanism by which myocardial cells enhance glucose uptake and metabolism during low-flow myocardial ischemia. [

AIM: To investigate the mechanism underlying insulin-stimulated increase in glucose uptake during low-flow myocardial ischemia. METHODS: The expression of myocardial GLUT1 polypeptide was determined by semiquantitative immunoblotting. The expression of GLUT1 mRNA was determined by semiquantitative Northern blotting. RESULTS: After infusing insulin during low- flow myocardial ischemia for 8 h，the expression of both GLUT1 mRNA and GLUT1 polypeptide was significantly higher in experimental myocardium than that in normal myocardium. The glucose uptake was upregulated at the same time in the exprimental myocardium. CONCLUSION: Insulin enhances the expression of GLUT1 mRNA and GLUT1 polypeptide in ischemic myocardial regions. GLUT1 expression may be an important mechanism by which myocardial cells enhance glucose uptake and metabolism during low-flow myocardial ischemia.

Objective To evaluate the clinical value of regular and dual-time-point 18-fluorodeoxyglucose positron emission tomography-CT(FDG PET/CT)imaging for recurrence and metastasis in esophageal carcinoma(EC)after curative esophagectomy. Methods A retrospective study was done on 48 patients received curative esophagectomy, who underwent FDG PET/CT scans to detect doubtful recurrent or metastatic lesions. The diagnostic accuracy of FDG PET-CT was assessed with the help of pathological findings as well as clinical or follow-up data. Using Fisher's Exact Test from SPSS 11.5 to analyze the data.Results Of the 48 patients, after a median follow-up of 21.5 months, 61 sites of local and regional recurrence or metastasis were finally confirmed in 34 patients. The sensitivity, specificity and accuracy of regular FDG PET/CT imaging in detecting recurrence of all sites were 93.44%, 74.29% and 86.46%respectively. The specificity and accuracy of local recurrence and regional metastasis were 57.14% ,78.95% and 77.78% ,84.62%, respectively. The sensitivity, specificity and accuracy of dual-time-point FDG PET/ CT imaging in detecting local and regional recurrence(96.97% ,96.00% and 96.55%)were higher than those of regular FDG PET/CT(90.90%, 72.00% and 82.76%)and there were significant differences of specificity and accuracy(P = 0.049, P = 0.029). Conclusions Regular FDG PET/CT imaging is highly effective in detecting recurrence and metastasis in EC patients after curative esophagectomy despite the low specificity and accuracy. Dual-time-point FDG PET/CT imaging can elevate the specificity and accuracy.

Objective　To compare the irradiation-protective and inter-synergestic effects of E838,WR-2721, Rubia cordifolia, cystamin e hydrochloride and ethinyl estradiol on radiation and combined radiation-burn injury. Methods　Above-mentioned drugs were given to the mice i ntraperitoneally, or intragastrcally, then, the mortality and the average surviv al d for 30 d were observed before and after the administration of the drug s. Results　①When drugs were before injury , the survival rate and the average survival d of the radiation and combined radiation-burn injured mice were increased obviously with the best effect in E838 and WR-2721. ②When drugs were given after injury, E838 and R. cordifolia also kept the effect. ③Combined appling WR-2721（pre) and E838（post）displayed a significant syner gistic reaction. Conclusion　E838 and WR-2721 are more e ffective than the others in the prevention of radiation.

etabolic response to radiotherapy may predict the prognosis of paitents with locally advanced NPC. The prognosis is poor for patients with high FDG uptake before and after radiotherapy or SUV max-NSUV max-P .

Objective To evaluate the effect of pitavastatin on blood glucose in patients with hypercholesterolemia,and to investigate the efficacy of pitavastatin in diabetic patients combined with hypercholesterolemia.Method This study was a 12-week,multi-center,open-label,without parallel-group comparison,phase Ⅳ clinical trail.Results Contrasting to baseline,the prevalences at week 4 and 12 post-treatment of abnormal fasting plasma glucose (FPG) and glycosylated hemoglobin Alc (HbA1c)( FPG:14.2％ vs 14.1％ and 11.0％ ; HbA1c:14.3％ vs 15.1％ and 16.1％ ) in the safety set subjects without diabetes mellitus (DM),as well as in those with DM but not taking glucose-lowering drugs (FPG:7/7 vs 4/7 and 5/7; HbAlc:5/5 vs 4/4 and 5/5) had no significant changes (all P vaules ＞0.05).Contrasting to baseline,the levels of TC [ (6.51±0.94) mmol/L vs (5.12 ±0.93) mmol/L and (4.54 ±1.00) mmol/L],LDL-C [(4.11 ±0.79)mmol/L vs (3.02 ±0.81) mmol/L and (2.51 ±0.70)mmol/L] and TG [2.10(1.53,2.54) mmol/L vs 1.62(1.26,2.00) mmol/L and 1.35(1.10,1.86)mmol/L]at week 4 and 12 post-treatment in the per protocol set 55 subjects with DM were significantly reduced (all P values ＜ 0.05 ) ; 33.3％ of subjects at high risk and 10.0％ of subjects at very high risk had achieved a TC target value; 55.6％ of subjects at high risk and 40.0％ of subjects at very high risk had achieved a LDL-C target value.Conclusion Pitavastatin has a safe effect on blood glucose and it could be used to treat diabetic patients combined with hypercholesterolemia in China.

Epithelial membrane protein 3 (EMP3) is a trans-membrane signaling molecule with important roles in the regulation of apoptosis, differentiation and invasion of cancer cells, but the detailed is largely still unknown. We analyzed the mRNA levels and methylation statuses of EMP3 in 63 primary breast carcinomas and assessed their correlations with clinicopathologic variables. The expression of EMP3 mRNA in primary breast carcinomas was significantly higher than the expression of 20 normal breast tissues (p<10(-7)). EMP3 overexpression in breast carcinomas was significantly related to histological grade III (p=3.9X10(-7)), lymph node metastasis (p= 0.003), and strong Her-2 expression (p=3.3X10(-6)). Hypermethylation frequencies of EMP3 were detected in 36.5% of breast carcinomas by methylation-specific polymerase chain reaction. However, no significant correlations were found between methylation status of EMP3 and mRNA expression levels as well as other clinical parameters. In conclusion, EMP3 may be a novel marker of tumor aggressiveness. Overexpression of EMP3 in primary breast carcinoma is not associated with DNA methylation.
Adult ; Breast Neoplasms/*genetics/pathology ; Carcinoma/*genetics/pathology ; DNA Methylation ; Epigenesis, Genetic ; Female ; Gene Expression Regulation, Neoplastic ; Humans ; Lymphatic Metastasis ; Membrane Glycoproteins/*genetics/metabolism ; Middle Aged ; Neoplasm Staging ; RNA, Messenger/metabolism ; Receptor, erbB-2/genetics/metabolism ; Severity of Illness Index