Objective To discuss MRI characteristics of dysplastic gangliocytoma of the cerebellum.Methods MRI manifesta-tions of 13 cases with dysplastic gangliocytoma of the cerebellum verified by operation and pathology were analyzed retrospectively. Results All of 13 cases were located in the cerebellar hemisphere and vermis.The lesions presented striated pattern of iso-intensity signal and hypo-intensity signal on T1-weighted images.The sign of tiger stripes was the feature in dysplastic gangliocytoma on T2-weighted and FLAIR images.All of the tumors showed slightly striated enhancement after intravenous administration of contrast agent.The mass effects of dysplastic gangliocytoma of the cerebellum along with the forth ventricle and brain stem oppressed were seen in all cases.NAA was mildly reduced on magnetic resonance spectroscopy (MRS)in 7 cases of dysplastic gangliocytoma of the cerebellum.Conclusion There are distinctive manifestations in MRI images for dysplastic gangliocytoma of the cerebellum,which has crucial diagnostic value before operation.

Objective To study the radiological appearance and pathological features of breast phyllodes tumors(PTs), and to enhance the knowledge of the tumor.Methods Clinical and imaging findings were reviewed retrospectively in 65 women with PTs confirmed by surgical pathology.61 patients had preoperative MRI and/or sonography, and 44 had preoperative mammography.Then these findings were compared with the pathological results.Results (1)The percentages of benign, borderline and malignant PTs were 32.3%(21/65), 43.1%(28/65) and 24.6%(16/65), respectively,and the mean maximum diameters of these lesions were (4.75±2.62) cm, (5.37±3.11) cm and (4.96±3.82) cm, respectively.There were no statistical difference in lesion''s size among these three types(F=0.247,P=0.782).(2)On the mammograms of these 44 PTs(including 16 cases of benign type, 18 cases of borderline and 10 cases of malignant type), the appearances of radiolucent halo and calcification among these three types showed statistically significant differences(both P<0.05).(3)On the sonography of these 61 PTs(including 19 cases of benign type, 26 cases of borderline and 16 cases of malignant type), the shape among these three types showed statistically significant difference(P<0.05).(4)On the MRI of these 61 PTs(including 21 cases of benign type, 24 cases of borderline and 16 cases of malignant type), internal hypointense septations on T2WI and time intensity curves showed statistically significant differences among these three types(both P<0.05).Conclusion Some radiological appearances of PTs can be used to help determine the histologic subtypes of breast PTs preoperatively.

Objective To evaluate the value of MSCT in the diagnosis of extrahepatic cholangiocarcinoma.Methods The MSCT appearances of extrahepatic cholangiocarcinoma confirmed by pathology in 27 cases were analyzed retrospectively.Among them,20 patients underwent plain and four-phase dynamic contrast-enhanced CT scans including early arterial phase,late arterial phase,portal phase and delay phase,7 patients only underwent contrast-enhanced CT scans.Results 15 lesions were located in the hilar and 12 lesions were located in the common bile duct.CT features of cholangiocarcinomas in this group were varied with its position and growth pattern.Besides the direct sign such as delay enhancement,the indirect findings were also specific such as hepatic lobe atrophy,dilated bile duct,etc.Conclusion MSCT is of great value in diagnosis of extrahepatic cholangiocarcinoma.

Objective To investigate the capability of 99 Tcm?tricine?EDDA/HYNIC?SFSIIHTPILPL ( SP94) as a specific probe for HCC imaging. Methods HYNIC?SP94 peptide was prepared by solid phase synthesis, followed by 99 Tcm labeling with tricine?EDDA as the coligand. After determination of radiochemical purity and stability, cell binding study was carried out by incubating Huh?7 cells with 99 Tcm?tricine?EDDA/HYNIC?SP94 at different specific activities (2.5, 4.0 and 30.0 GBq/μmol). The biodistribution studies and microSPECT/CT imaging were performed in Huh?7 tumor?bearing mice ( study group) and Hela tumor?bear?ing mice ( control group ) . Statistical analysis was by two?sample t test. Results 99 Tcm?tricine?EDDA/HYNIC?SP94 was synthesized with over 95% of labeling yield, which remained stable in saline and FBS up to 12 h. With increasing concentrations of 99 Tcm?tricine?EDDA/HYNIC?SP94, Huh?7 cell binding increased but became gradually saturated. In biodistribution studies, (1.02±0.26) %ID/g of tracer was accumulated in Huh?7 tumors at 0.5 h after injection of 99 Tcm?tricine?EDDA/HYNIC?SP94, higher than that in the HYNIC?SP94 blocking group ((0.34±0.09) %ID/g;t=3.537, P<0.05). Compared to Hela tumors, Huh?7 tumors were clearly visualized by microSPECT/CT, with which better imaging quality could be achieved with higher specific radioactivity. Conclusion 99 Tcm?tricine?EDDA/HYNIC?SP94 could achieve a high labeling effi?ciency and good in vitro stability as a potential diagnostic tracer specifically targeted for HCC.

Through the expert questionnaire (Delphi Indagate) to form Traditional Chinese Medicine (TCM) Healthy Lifestyle Guiding Principles.We conducted two rounds of surveys of TCM experts in the field of preventive health care on the basis of previous literature research.This study was aimed to form the framework in order to entry to the TCM Healthy Life-style Guiding Principles.The results showed that the positive coefficient of experts in two rounds of investigation were 84.31％ and 100％,respectively.The authoritative decree were both more than 0.7.The expert opinion score mean median was 9.21 and 9.085.Median mean values were 7.965 and 7.925.The median scores of full marks were higher than 65.12％ and 66.67％.The minimum coefficients of variation were 0.11 and 0.10.It was concluded that in the investigation and study,the enthusiasm of the experts,professional standards and credibility were high.Expert opinion is more concentrated.Expert opinion is well coordinated and gradually converges through two rounds of surveys.Through the Delphi indagate,the basic framework and items of TCM guiding principles of healthy lifestyle were established,which laid the foundation for further standardizing the guiding principles of TCM in healthy lifestyle.

OBJECTIVE： To observe the effects of stilbene glycosidec （TSG） on okadaic acid （OA）-induced Tau protein phosphorylation in NG108-15 cells， and to investigate the potential anti-Alzheimer’s disease （AD） mechanism of this compound. METHODS： AD model of NG108-15 cells was induced by OA. The survival rate of NG108-15 cells was observed by MTT assay after pretreated with low-dose， medium-dose and high-dose of TSG （50， 100， 200 μmol/L）. The apoptosis of NG108-15 cells was detected by AO/EB double fluorescence staining. The protein and mRNA expression of CDK5 and GSK3β， and the protein expression of Tau and p-Tau were detected by Western blotting assay and RT-PCR. The distribution of CDK5， GSK3β and Tau protein were detected by immunofluorescence. RESULTS： The normal morphology of NG108-15 cells was observed in normal control group， but CDK5， GSK3β and Tau protein were not found or few was found. Contracted or globular early apoptotic cells were observed in model gorup； the distribution of CDK5， GSK3β and Tau protein was increased， while survival rate of the cells was decreased； protein and mRNA expression of CDK5 and GSK3β as well as ratio of the relative expression of p-Tau to that of Tau （p-Tau/Tau） were all increased significantly （P＜0.05 or P＜0.01）. After pretreatment of TSG， the distribution of early apoptotic cells as well as CDK5， GSK3β and Tau protein were all decreased to some extent in administration groups， while survival rates of the cells were increased significantly. Protein expression of CDK5 and p-Tau/Tau in medium-dose group and high-dose group as well as mRNA expression of CDK5， protein and mRNA expression of GSK3β in administration group were decreased significantly （P＜0.05）. CONCLUSIONS： TSG can protect against AD model cells， the effects of which may be associated with improving survival rate of the cells， down-regulating the protein expression and gene transcription level of phosphokinase CDK5 and GSK3β， inhibiting Tau protein phosphorylation.

OBJECTIVE：To study the regulatory effects of stilbene glucosid e（TSG）on c-Jun N-terminal kinase （JNK）and protein phosphortase 2B（PP2B）in APP/PS1/Tau transgenic dementia （3×Tg-AD）mice，and to explore its potential mechanism of anti-Alzheimer’s disease （AD）. METHODS ：Totally 45 male 3×Tg-AD mice were randomly divided into model group ，positive control group （huperzine A ，0.15 mg/kg），TSG low-dose ，medium-dose and high-dose groups （0.033，0.1，0.3 g/kg），with 9 mice in each group. Another 9 normal male C 57BL/6J mice were included into normal control group. Administration groups were given relevant medicine intragastrically ，once a day ，for consecutive 60 d. Normal control group and model group were given constant volume of normal saline intragastrically. After medication ，Morris water maze experiment was used to test the spatial learning and memory ability of mice in each group ；Nissl staining was used to observe the changes of Nissl bodies in cerebral cortex and hippocampus ；mRNA and protein expressions of JNK and PP 2B were detected by qRT-PCR and Western blotting assay. RESULTS：Compared with normal control group ，the escape latency was significantly prolonged （P＜0.01），the retention time of the original platform quadrant was significantly shortened （P＜ and the times of crossing the platform was significantly reduced in model group （P＜0.01）；the number of Nissl bodies in cerebral cortex and hippocampus was significantly 729011126@qq.com reduced，the staining was slight ；the relative expressions of JNK mRNA and protein were significantly increased （P＜ 0.01），and the relative expressi ons of PP 2B mRNA and protein were significantly decreased （P＜0.01）. Compared with model group ，the escape latency was significantly shortened in positive control group and TSG groups （P＜0.01）；the retention time of the original platform quadrant was significantly prolonged （P＜0.01）；the times of crossing the platform was significantly increased （P＜0.01）；the number of Nissl bodies in cerebral cortex and hippocampus was increased significantly ，the staining was heavy ；the relative expression of JNK protein was significantly decreased（P＜0.05 or P＜0.01），the relative expressions of PP 2B mRNA and protein were significantly increased （P＜0.01）， while the relative expression of JNK mRNA was significantly decreased in TSG high-dose group （P＜0.05）. CONCLUSIONS ：TSG can improve the learning and memory ability and neuronal damage of 3 × Tg-AD mice. The mechanism may be related to down-regulating the transcription and expression of protein kinase JNK ，up-regulating the transcription and expression of protein phosphatase PP 2B.