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Objective To investigate the prognostic impact of carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) and CD34 on invasion and metastasis of gastric cancer.Methods CEACAM1 and CD34 expressions were detected by immunhistochemistry in 90 cases of gastric cancer and 30 cases of normal gastric mucosa.Then the relationship among CEACAM1, MVD marked by CD34 antibody and gastric cancer patients` clinical pathological features and prognosis were analyzed.Results The positive rates of CEACAM1 and CD34 protein in gastric cancer were significantly higher than those in normal gastric mucosa (P<0.05).The positive rate of CEACAM1 was closely related to histological differentiation, tumor invasion, nodal metastasis and TNM stage.MVD marked by CD34 was related with tumor size, histological differentiation, tumor invasion, nodal metastasis and TNM stage(P<0.05).Conclusions In gastric cancer, CEACAM1 and CD34 promote its invasion and metastasis, and they are potential indicators of predicting development and prognosis.
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Objective The relationship was analyzed between clinic and the expression intensity of HBsAg and HBcAg with in the hepatic tissue from the serum HBeAg negative group and the positive group.Methods A total of 317 liver biopsy specimens were divided into the HBeAg negative group and the positive group,and the relationship was analyzed between the expression inten sity of HBsAg and HBcAg within the hepatic tissue and their age,gender,ALT level,serum HBV-DNA load,hepatic inflammatory activity grading and fibrosis staging in the two groups.Results Age,ALT level,hepatic inflammatory activity grading and fibrosis of the serum HBeAg negative patients were greater than those of the serum HBeAg positive patients,while their serum HBV-DNA load and the expression intensity of HBcAg within the hepatic tissue were lower than those of the serum HBeAg positive patients (P＜0.05).The expression intensity of HBsAg within the hepatic tissue between the serum HBeAg patients and the serum HBeAg positive patients was not significantly different,and it was not correlated with age,ALT level,hepatic inflammatory grading and fi brosis staging (P＞0.05).After the serum HBeAg turned negative,the expression intensity of HBcAg within the hepatic tissue was decreased (P=0.00,t=12 349.0),and it became positively correlated with the serum HBV DNA load(P=0.007,r=0.251) and its negative correlation with the hepatic inflammatory activity and fibrosis was weakened.Conclusion After the serum HBeAg turned negative,other antigenic components of HBV may still maintain the adequately active immune status within the hepatic tis sue of organisms.After the serum HBeAg turned negative,the expression intensity of HBcAg within the hepatic tissue was de creased and became positively correlated with the serum HBV DNA,while its negative correlation with the hepatic inflammatory activity grade and fibrosis stagings was weakened.
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Objective To explore the expression and correlation of CIP 2A and HPV16-E7 protein in cervical cancer.Methods The expressions of CIP2A and HPV16-E7 in 50 cases of cervical cancer ,34 cases of CINⅠ,40 cases of CINⅡ,45 cases of CINⅢand 12 cases of normal tissues were assessed by immunohistochemi -cal method.R esults The rate of expressions of CIP2A protein in cancer tissues and CINⅢ were 68%(34/50) and 13.3%(6/45)respectively;The rate of expressions of CIP2A protein in CINⅡ、CINⅠtissues and normal tis-sues were negative.The expressions of CIP2A protein in cancer tissues were stronger than in CIN tissues and nor-mal tissues(P0.05).The expression of CIP2A was positively associated with the expression of HPV16-E7 in cervical cancer(r=0.514,P<0.05).Conclu-sion The expressions of CIP2A and HPV16-E7 are very strong in cervical cancer;CIP2A and HPV16 may play important roles in the carcinogenesis and the development of cervical cancer .
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Objective To observe the occurrence of myocardial apoptosis and discussing the mechanism of the effects of glucocorticoid on myocardial apoptosis in septic rats in order to provide the rationale for clinical strategy.Methods A total of 60 Wistar rats weighing 230-280 g were randomly (random number) divided into control group and experimental group (n =30 in each group).Cecal ligation and puncture (CLP) was performed in rats to induce sepsis,and Cefoperazone Sodium/Sulbactam Sodium (200 mg/kg) was injected into caudal vein 4 hours after CLP,twice a day.In addition,glucocorticoid was given to rats of experimental group.After rats sacrificed,their left ventricular myocardia were rapidly taken out and myocardial apoptosis rate was measured and the level of Bcl-2 was assayed at 6 h,24 h,and 72 h after CLP.Measured data were analyzed with independent-samples t-test and One-Way ANOVA.Results The rates of myocardial apoptosis in experimental group were obviously lower than those in control groups respectively (F=9.11,t=5.681,P＜0.01) (6ht=11.416,P＜0.01; 24ht=6.217,P＜0.01; 72 h t =3.76,P ＜0.01).The rates of myocardial apoptosis in 24 h in control and 72 h control groups were distinctively higher than those in 6 h control group,respectively (F =13.254,sig =0.000,P ＜0.01 ; sig =0.004,P ＜ 0.01).The rates ofmyocardial apoptosis in group 24 h control were higher than those in 72 h control group (sig =0.039,P ＜ 0.05).The rates of myocardial apoptosis make no difference among experimental group (F =2.488,6/24 h sig =0.132,P ＞ 0.05 ; 24/72 h sig =0.549,P ＞ 0.05 ; 6/72 h sig =0.053,P ＞ 0.05).Conclusions The rate of myocardial apoptosis is peaked at 24 h in sepsis rat,and the rate of myocardial apoptosis can be obviously decreased by administration of glucocorticoid.
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@#Objective To investigate the expressions of Transforming Growth Factorβ2 (TGF-β2) and Smad3 in human gliomas associated with pathologic grading. Methods The expressions of TGFβ2 and Smad3 protein were detected with SP immunhistochemistry in 80 human glioma specimens. The Kapan-Meier survival curves of progression-free survival time and overall survival time in different expression levels was compared with log-rank. Results The expression of TGFβ2 and Smad3 correlated with the pathological grading (r=0.545, r=0.570, P<0.01). Both progression-free survival time and overall survival time were significantly different between low expression group and high expression group (P<0.05). Conclusion Both TGF-β2 and Smad3 correlate well with the occurrence and differentiation of human gliomas,which help for the diagnosis, treatment and prognosis judgment．
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Objective To explore the relationship between the expression of syndecan-1 and the prognosis in pancreatic cancer. Methods The data of 30 patients with pancreatic cancer who received radical operations were retrospectively analysed.Immunohistochemical staining was performed,and the expression of syndecan-1 in tumor epithelial cells and stroma was observed by light microscopy.The relationship between immunohistochemical findings and survival was analysed.Results For those with negative,weak positive,moderate positive and strong positive expression of synecan-1 in tumor epithelial cells and stroma,there were significant differences in the case numbers between those survived for 1 to 2 years and those survived for 2 to 4 years(P
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Objective:To investigate preliminarily the expression of P-glycoprotein(pGp),a multi-drug resistance gene-1 product,in patients with nasopharyngeal squamous carcinoma(NPSC) before and after radiotherapy.Methods:pGp was detected by immunohistochemistry with one monoclonal antibody JSB-1 before and after radiotherapy in fourty-eight patients with NPSC.None of them had received neoadjuvant chemotherapy or radiotherapy.Results:The positive rate of pGp expression in the patients with NPSC before radiotherapy was 18.75%(9/48).But the positive expression rate of pGp after radiotherapy was 75.00%(36/48).pGp expression rate after radiotherapy was significantly higher than that before radiotherapy( P
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Objective To study the expression of basic fibroblast growth factor(bFGF) and bFGF mRNA in pathological process of hepatic vascular proliferation, reconstruction and fibrosis in the patients with chronic hepatitis B(CHB). Methods Immunohistochemical staining(bFGF)and hybridization in situ(bFGF mRNA)were performed in 120 cases of liver tissues of CHB. Results Strongly positive expression ratio of bFGF on hepatic vessels and hepatic sinusoidal walls were increased with the exacerbation of degeneration, necrosis of hepatocytes and hepatic vascular diseases( P
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Objective To investigate the histological features of papillary renal cell carcinoma, and to explore the relationship between nuclear grading and prognosis. Methods The pathological slides and clinical data of 13 cases of papillary renal cell carcinoma were reviewed. The pathological features were scrutinized and nuclear grading was conducted according to Fuhrman grading system. Immunohistochemical staining for CK7, EMA, and vimentin was also respectively done. The correlation between nuclear grade and prognosis was analysed. Results The age range of the patients was from 35 to 67 (average 53) years. 10 were male and 3 were female. Most of the tumors were located in the upper pole (5cases) or lower pole (5cases). Three were located in the middle part of the kidney, with some inclination to either pole. All the tumors were well circumscribed with a size ranged from 2cm to 6.3cm (average 3.5cm) in diameter. Hemorrage and cystic change were obviously seen in large tumors. Microscopically, the tumors were composed of papillary or tubular structures, with hemorrhage, foamy macrophages and cystic change as prominent features. 6 cases were multifocal. Fuhrman nuclear grade Ⅰ or Ⅱ was made in 6 cases, and Ⅲ or Ⅳ in 7 cases. All the tumors were positive for CK7, EMA and vimentin. The patients were followed up for 28 to 102 months (average 52 months). 3 patients died of tumor recurrence or metastasis after the operation at 36, 41 and 50 months, respectively, while others survived without tumor up to now. The three dead patients were graded Ⅲ or Ⅳ by Fuhrman nuclear grading system. Conclusion Papillary renal cell carcinoma was different from other renal carcinoma variants in that they, usually have a better prognosis.
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Objective To compare the expressions of p16~(ink4a) and Ki-67 in human cervical lesions. Methods The expressions of p16~ink4a and Ki-67 protein were measured with immunhistochemical staining in 42 human normal uterine cervical tissues,21 with human cervical intraepitheial neoplasia(CIN) Ⅰ,21 with CINⅡ,and 36 with CINⅢ.The relevance of the expressions of the two proteins to CIN grades was analyzed by Spearman Correlation.The sensitivity,specificity,positive/negative predictive values,and youden's index of p16~(ink4a) and Ki-67 were also studied. Results For p16~(ink4a),the sensitivity and specificity were 83.3% and 90.5%;the positive and negative predictive values were 94.2% and 74.5%;Youden's index was 0.738.For ki-67,the sensitivity and specificity were 98.7% and 16.7%;the positive and negative predictive values were 68.75% and 87.5%;Youden's index was 0.154.Both the sensitivity and specificity for the combined Ki-67 and p16~(ink4a) are 83.3%.Conclusion p16~(ink4a) has higher specificity and positive predictive value,and is a good diagnostic marker for cervical lesion.By contrast,Ki-67 has higher sensitivity and negative predictive value.Even with its poor specificity,it can still be regarded as a supplementary test for early diagnostic cervical lesion.The overall performance of p16~(ink4a) is better than that of Ki-67.