?AlM: To evaluate the expressions and significances of endoplasmic reticulum stress related protein ( BlP ) , hypoxia-inducible factor-1α ( HlF-1α) and vascular endothelial growth factor ( VEGF) in the retina of diabetic rats.
?METHODS:Seventy-two male Sprague-Dawley ( SD) rats were chosen and divided randomly into 6 groups:normal control 2mo (C2m, n = 12), diabetes mellitus 2mo (D2m, n=12), normal control 4mo (C4m, n=12), diabetes mellitus 4mo (D4m, n = 12), normal control 6mo (C6m, n=12) and diabetes mellitus 6mo (D6m, n=12 ) . The diabetes mellitus mouse were induced by intraperitoneal injection of 0. 1mol/L streptozotocin (STZ, 65mg/kg). The expression of BlP, HlF-1α and VEGF in the retina were detected by enzyme- linked immuno sorbent assay. The location of BlP, HlF-1α and VEGF in epiretinal membranes were investigated by immunohistochemistry staining.
?RESULTS: BlP were significantly increase than control groups in all DM groups with the course of diabetes ( P<0. 01). HlF-1α were detected higher than control groups in all DM groups (P< 0. 05), but there was no statistical significance among treatment groups. VEGF in D4m and D6m groups were higher than control groups (P<0. 05), and there was statistical significance between D4m and D6m groups. BlP can be detected in control groups a little, mainly in the inner limiting membrane and ganglion cell layers. HlF - 1α cannot be detected in control groups, meanwhile it can be detected in all layers in DM. VEGF can be detected in control groups a little, it mainly be detected in inner nuclear layer, outer nuclear layer, around retinal vessel and ganglion cell layers in DM groups.
?CONCLUSlON:The expressions of BlP, HlF-1α and VEGF increase in the retina of diabetic rats than control groups with progressive of diabetes mellitus, both endoplasmic reticulum stress and HlF-1α signal path play important role in the progress of diabetic retinopathy.

Objective:To establish a preoperative forecasting model for the nature of duodenal papillary tumors and to discuss its main predictors.Methods:A case-control study was conducted;the case group included patients with malignant duodenal papillary tumors and the control group included patients with benign duodenal papillary tumors.All the patients were from Changhai Hospital. Data of patients,including the demographic characteristics,clinical symptoms during onset,laboratory findings,and radiological data, were collected by face-to-face interviews or by reviewing the medical history.Chi-square,t-test or ANOVA were employed to performed univariate analysis.All factors with P values less than or equal to 0.25 in the univariate analysis were used as independent variables for multivariate analysis,and a Logistic regression forecasting model for the nature of duodenal papillary tumors was established.Results: Totally 199 patients with pathologically-confirmed duodenal papillary tumors were included in the present study,with 166 in the case group and 33 in the control group.Multivariate analysis showed that hemoglobin(Hb),total bilirubin(Tbil),direct bilirubin(Dbil), aspartate transferase(AST),alkaline phosphatase(AKP),gamma glutamyl transpeptidase(GGT),and carcinoembryonic antigen(CEA) were independent predictors for nature of duodenal papillary tumors,with their odds ratios(95% confidence interval)being 0.981 (0.959,1.003),0.867(0.794,0.948),1.207(1.075,1.355),1.028(1.008,1.048),0.996(0.992,1.000),1.002(1.000,1.004),and 0.974(0.953,0.994),respectively.Conclusion:The Logistic regression model,which takes into consideration of Hb,Tbil,Dbil,AST, AKP,GGT,and CEA,can be used to predict the nature of duodenal papillary tumors,and its clinical value need to be further studied.

Adenocarcinoma ; pathology ; surgery ; Adult ; Blood Loss, Surgical ; Carcinoma, Squamous Cell ; pathology ; surgery ; Female ; Humans ; Hysterectomy ; adverse effects ; methods ; Middle Aged ; Neoplasm Staging ; Uterine Cervical Neoplasms ; pathology ; surgery

This article began from the characteristic and research method of the syndrome in Traditional Chinese Medicine(TCM)and proteomics,analyzed the superiority and the feasibility of introduction of proteomics into the study of syndrome essence.The author thought that proteome and syndrome in TCM were amazing similar in the aspects of integrity,developments,space and complexity,there was maybe some kind of inner link and the corresponding relations between them.Therefore, the proteomics had the special superiority when it was compared with the general microscopic parameter in study of syndrome essence,also even more accord with the characteristics of syndrome in itself.This article also generalized the research achievement of syndromic proteomics in TCM in recent years from the aspects of specification,thought and method,the relativity of concrete syndrome type and proteome.This article demonstrated the magnificent prospect of proteomics in the study of the syndrome essence of the TCM.

Objective To explore the diagnosis,treatment and prognosis of primary gastric malignant (lymphoma)(PGML).Methods The diagnosis and treatment data of 21 cases of PGML admitted in our(hospital) during 8 years was retrospectively analyzed.The diagnostic methods included barium meal(examination),gastroscopy,B type ultrasonography,and CT scan.All patients underwent operative treatment and most of the patients received adjuvant chemotherapy.Results Upper abdominal pain,digestive tract bleeding,emaciation and abdominal mass were common clinical manifestations of PGML.The resectabilty rate of PGML was 90.5% while the 5-year survival rate was 57.1%.Conclusions The key to a satisfactory prognosis was early diagnosis,radical curative operation and combined treatment.

Objective:On the basis of the use of chemical methods to establish mouse model of lupus nephritis and its biological identification , we investigate the reverse effect of pathological lesions of B 7-1 human-mouse chimeric antibody blockade against B7/D28 signaling pathway in mice with lupus nephritis model.Methods:Pristane was injected intraperitoneally to 6-week-old female C57BL/6J mice at dose of 0.5 ml per mouse in one go,and urine protein,ANA and renal pathological changes were detected on a monthly basis.Mice whose urine protein content reached ++and ANA fluorescence intensity reached ++were randomly devided into three groups ,five each.Antibody intervention group was sequentially injected with B 7-1-mouse chimeric antibody by orbital venous , positive control group was injected with immunosuppressant CTX , negative control group was injected with isotype control IgG.Urine protein and ANA were also detected on a monthly basis.Mice were sacrificed three months after intervention was executed.Kidney was used for H&E dying , IC detection and electric microscope observation.Results: After four-month Pristane induction , urine protein content of 80%mice reached +-+++,meanwhile,serum ANA fluorescence intensity reached ++-+++.Glomerulonephritis infiltrating cells were observed Mice with urine protein and ANA , glomerular inflammatory cell infiltration , tubular epithelial cell degeneration visible edema ,vascular congestion significantly ,fibrosis.After antibody intervention ,urine protein content in antibody intervention group gradually reduced from ++-+++to ±-+++,ANA ++-+++to +-++,and were significantly different from that in the negative control group ( P<0.01 ).Analysis of kidney H&E dying showed that antibody glomerular infiltration of inflammatory cells in the intervention group and tubular congestion and other symptoms were improved significantly.Immunofluorescence staining indicated that fluorescence intensity of IC was significantly reduced in the antibody intervention group.Electron dense deposits reduction and glomerular basement membrane uniformity were observed in antibody intervention group by electric microscope when compared with the negative control group.Conclusion:B7-1 antibodies could downregulate immune response through inhibiting B 7-1/CD28 signaling pathway , reducing the production of autoantibodies and reversing pathological damage caused by autoimmune response .

Adenocarcinoma ; diagnosis ; pathology ; Carcinoma, Squamous Cell ; diagnosis ; pathology ; Cytodiagnosis ; methods ; Cytological Techniques ; methods ; Female ; Humans ; Lung Neoplasms ; diagnosis ; pathology ; Male ; Middle Aged ; Small Cell Lung Carcinoma ; diagnosis ; pathology ; Sputum

To investigate the relationships between constitutional types of traditional Chinese medicine (TCM) and hypertension so as to provide epidemiological evidence for the theory of correlation between constitution and disease.

Background and purpose:Researches had indicated that about over 85%of malignant tumors highly express telomerase activity. So telomerase has become one of the important methods in the research field of tumor diagnosis and treatment. Nowadays, several reports about malignant tumor which over expresses hTERT targeting imaging with radionuclide labeled hTERT ASON had been published. In these reports, high quality of pictures can hardly be acquired because of poor anatomical and spacial resolution in nuclear imaging itself. Accordingly, in this study, we developed a method of detecting human telomerase in vivo with magnetic resonance imaging (MRI) and evaluate its feasibility. Methods:Firstly, Uniformly phosphorothioate-modified human telomerase reverse transcriptase antisense oligonucleotide (hTERT ASON) was labeled with Gd3+ through the bifunctional chelator 1, 4, 7, 10-tetraazacyclododecane-N, N’, N’’, N’’’-tetraacetic acid (DOTA) and iv vitro experiments were performed to characterize the antisense probes (for biodistribution and cellular uptake, 99mTc-DOTA-ASON was used in stead of Gd-DOTA-ASON). Then Gd-DOTA-ASON was injected intraperitoneally in pulmonary adenocarcinoma A375 nude mice tumor-bearing BALB/c for in vivo imaging using 7.0 T Micro MRI periodically, tumors and their surrounding tissues were defined as region of interest (ROI) to calculate the signal to noise ratio (SNR) of tumor to muscle using Gd-DTPA as control. Finally, immunohistochemical analysis of telomerase activity of each xenograft was operated 2 days after imaging. Results:The binding efficiency of Gd-DOTA-ASON reached was as high as 65%(63.2±2.4, n=6). And it can maintain 61%in fresh human serum and normal saline at 37℃over 24 h;A375 cells showed an uptake of 8.5%when incubated with 99mTc-DOTA-ASON;In comparing with DOTA-ASON and Gd-DTPA, cells transected with Gd-DOTA-ASON had higher SI when performed MRI with T1WI. The hTERT-expressing xenografts were obviously enhanced by Gd-DOTA-ASON at 0.5-6 h after injection and the SNR can reach 2.37, whereas obvious enhancement only could be found within 2 h after injection of Gd-DTPA. Both labeled and non-labeled antisense probes can suppress the activity of telomerase of A375 cells either in vitro or in vitro. Conclusion:Our research offers proof that Gd-DOTA-ASON can be used as tumor specific targeting MR probe for diagnosing malignant tumors with high expression of telomerase.

Objective To explore the radiosensitivity of berberine on esophageal cancer cells under hypoxia condition.Methods MTT assay and clonogenic survival assay were used to evaluate the effect of berberine on proliferation inhibition and radiosensitivity of esophageal cancer cells,respectively.Immunofluorescence was employed to examine the expression of HIF-1.The change of cell cycle distribution and cell apoptosis was assayed by flow cytometry.The expression of HIF-1 was measured by Western blot.DNA damage was detected by γ-H2AX Foci counting.Results With a clear dose and time effect,berberine inhibited cell proliferation and enhanced cell radiosensitivity(t =3.69,P＜0.05)with a sensitizing enhancement ratio(SER)of 1.42.Berberine caused a dose-dependent decrease in HIF-1 protein expression and also significantly increased the cell apoptosis in ECA-109 population(t=4.74,P＜0.05).Compared with the radiation alone group,berberine enhanced X-ray induced DNA double chain breaks(DSB).Conclusions Berberine can increase the radiosensitivity of esophageal cell line ECA-109,which may be associated with decrease of HIF-1 expression and induction of apoptosis in ECA-109 cells.