Pancreatic cancer has a strong ability of invasive and metastasis,and the mechanism is still not completely clear.It has been demonstrated that aberrant expression of microRNAs(miRNA) is closely associated with the occurrence,development and metastasis of pancreatic cancer.The reveal of miRNA mechanism related to the metastasis of pancreatic cancer would provide a new approach to the treatment of pancreatic cancer.

Objective To observe the hypoglycemic, hypolipidemic and antioxidant effects of Zhuye Shigao Decoction (ZSD) on experimental type 2 diabetes mellitus rats. Methods Type 2 diabetes mellitus rat model was induced by intragastric administration of high fat diet(10 mL/kg) and intraperitoneal administration of streptozotocin (30 mg·kg-1). Sixty male Sprague-Dawley rats were randomized into normal group, model group, low-, moderate-and high-dose ZSD groups (in the dosage of 3.6, 7.2, 14.4 g·kg-1·d-1 respectively), and Metformin group (0.15 g·kg-1·d-1) , 10 rats in each group. With fasting blood glucose, urine glucose, glycosylated hemoglobin, total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol(LDL-C), serum insulin, serum superoxide dismutase(SOD) and malondialdehyde (MDA) as the main indexes, we evaluated the influence of ZSD on the blood glucose and lipid levels as well as oxidative stress in type 2 diabetes mellitus rats. Results Compared with the model group, the levels of blood glucose, urine glucose and glycosylated hemoglobin, and the contents of TC, TG, MDA were decreased (P <0.05), whereas SOD activity and serum insulin level were obviously increased (P < 0.05) in ZSD groups. ZSD showed dose-related effectiveness in the treatment of diabetic rats. Conclusion ZSD has certain hypoglycemic, hypolipidemic and antioxidant effects in treating type 2 diabetes mellitus.

Humans ; Lymphoma, Large B-Cell, Diffuse ; Societies, Medical ; United States

Objective To investigate the CT and MRI features of solid-cystic papillary tumors(SCPTs) of the pancreas.Methods Eight cases of SCPTs confirmed by operation and pathology underwent both plain and contrast-enhanced CT examination,and MR examination in three cases and contrast-enhanced MRI in two cases.Results In the eight patients,the mean tumor diameter was 7.6 cm and the lesions were found mainly in the body and tail of the pancreas,only one at the pancreatic head.On plain CT scan,the tumors appeared as huge solid-cystic mass with definite margin and an integritied capsul,the solid areas were papillary or irregular components,and the cystic areas in central were low attenuation.On contrast-enhanced CT,the cystic wall and solid part were slight enhancement in arterial phase,and moderate or obvious enhancement in parenchymal phase.Irregular ringed and punctate calcification could be seen in five cases,the acute hemorrhage occurred in one case,slight dilation of the pancreatic duct was noticed in one patient.MRI showed an ovoid solid-cystic mass of the pancreas with distinct border.On T1WI,heterogeneous iso-and hypo-intensity was observed.One case showing the high signal intensity in tumor was subacute hemorrhage.On T2WI,the tumors were mixed hypo-,iso-and hyperintensity.The papillary or flocculent solid portion and the cystic wall were enhanced after gadolinium was used.Conclusion SCPTs is of certain clinic,CT and MRI characteristic findings,which can aid in reaching a proper diagnosis.

To investigate the changes in the activated T-lymphocyte CD3/HLA-DR and CD3/CD(16+56) populations in peripheral blood of the patients with allogeneic hand transplantation, lymphocytes from peripheral blood of the patients at different time points were immunologically labeled with dual color fluoresecent monoclonal antibodies CD3/CD(16+56) and CD3/HLA-DR, mono-color fluoresecent monoclonal antibody CD25. CD25, CD3/CD(16+56), and CD3/HLA-DR were determined with flow cytometry (FCM). The levels of activated T-lymphocyte (CD25 +,CD3 +/HLA-DR + ), silent T-lymphocyte [CD3 +/CD(16+56) -,CD3 +/HLA-DA - ] decreased significantly during the first week after transplantation and then increased gradually to the pre-operafive level. Nature killer cells [CD3 -/CD(16+56) +] increased significantly at the first day after transplantation, then decreased sharply and maintained a lower level. The results suggest that immunosuppressive agents have significantly effects on lymphocyte subsets in allogenaic hand transplanted patients, and dynamic determination of HLA-DR, CD3 /CD(16+56) could be valuable in immunomonitoring after allogeneichand transplantation.

AIM: To explore the effect and the mechanism of sulphated heparin on the proliferation and the apoptosis of human hepatocellular carcinoma cells. METHODS: The human hepatocellular carcinoma cell line (HepG-2) was used to identify the expression of ras gene protein and to study the effect of sulphated heparin on proliferation and the apoptosis in vitro . RESULTS: The sulphated heparin downregulated the ras protein expression and inhibited the cell growth in HepG2 cells. In the presence of sulphated heparin, the apoptosis rate of HepG2 increased. CONCLUSION:The data suggest that the effects of sulphated heparin on the proliferation and the apoptosis of the human hepatocellular carcinoma cell are correlated with the signaling transduction mediated by ras gene protein.

Objective To investigate the survival, differentiation and action of neural stem cell transplanted into striatum of Parkinson disease rat model. Methods Neural stem cells were isolated and cultured. The character of self-renewing was confirmed by technique of single cell clone culture. The ability of multi-directional differentiation and specific antigen-nestin was showed by immunocytochemistry(ICC). PD rat models were established, and the DAPI-labelled neural stem cells were transplanted into striatum. The 6-HHDA induced rotary behavior was measured, distribution and migration of the cell were checked by fluoresce activating. ICC and HPLC are used to see its differentiation and action of secrete neurotransmitter dopamine(DA) and it’s metabolites. Results The cultured stem cell express nestin and have the ability of self-renewing and multi-directional differentiation. 6-HHDA induced rotation decreased after transplantation of NSC into the PD rat striatum(P

The event-related desynchronization/synchronization(ERD/ERS) time courses of lower and upper alpha band rhythms during hand motor imagery are investigated respectively by Fourier Sectral Entropy (FSE) in this paper. By analyzing one group of BCI competition data, it was found that FSE within upper alpha band displays a pronounced increase and decrease over contralateral and ipsilaterai brain areas respectively at the onset of hand motor imagery, which is corresponding to the antagonistic ERD/ERS patterns in previous studies. Different from the upper alpha activity pattern, FSE within lower alpha band displays a consistent increase over both two hemispheres hand representative areas. The preliminary results show that FSE could disclose the different behaviors of the upper and lower alpha band rhythms so that a new idea with the complexity measure is provided to characterize functional dissociation of lower and upper frequency alpha rhythms in relation to hand motor imagery.

Objective To evaluate the safety of CT guided percutaneous lung biopsy in the elderly,and to analyze the risk factors for its complications.Methods Totally 204 elderly patients aged ≥65 years underwent transthoracic needle biopsy under CT guidance.Clinical data,complication and its risk factors were analyzed retrospectively.Results The complications included pneumothorax accounting for 15.2％ (31/204),hemoptysis 21.6％ (44/204),and no mortality was found.Logistic regression analysis showed that needle path ≥5.00 cm,lesion size ≤2.00 cm and emphysema around the lesion were the independent risk factors for postoperative pneumothorax (OR=4.05,2.54 and 3.97,all P＜0.05).Meanwhile,the enhancement degree by CT ＞40 HU,needle path ≥5.00 cm and lesion size ≤2.00 cm were the independent risk factors for postoperative bleeding (OR=2.27,2.82 and 2.33,all P＜0.05) in elderly patients undergoing lung biopsy.The sensitivity and specificity for postoperative pneumothorax and bleeding obtained by forecasting equation were 87.1％ and 49.1％,54.5％ and 80.8％ respectively.Conclusions The length of needle path,lesion size and emphysema around the lesion are correlated with pneumothroax,and length of needle path,lesion size and the CT enhancement degree are correlated with bleeding after percutaneous lung biopsy in the elderly.