Objective To study the expressions of CA19-9 and CA125 and their clinicopathologic significances in gallbladder adenocarcinoma, pericancerous tissues and chronic cholecystitis. Methods EnVisionTM immunohistochemistry was used for assaying the expressive levels of CA19-9 and CA125 in the routinely paraffin-embedded sections of specimens from gallbladder adenocarcinoma (n=108), pericancerous tissues (n=46), and chronic cholecystitis (n=35). Results The positive rates of CA19-9 and CA125 were significantly higher in gallbladder adenocarcinoma (49.1%, 51.9%) than those in pericancerous tissues (26.1%, 15.2%) and chronic cholecystitis (14.3%, 5.7%), respectively (P

Objective To study the expressive levels of galectin-3 (gal-3) and sambucus nigra agglutinin(SNA) and to detect their clinicopathological significances in benign and malignant lesions of the gallbladder. Methods EnVisonTM Immunohistochemistry for assaying gal-3 expressive levels and ABC cytochemistry for determining SNA expressive levels were used in conventional paraffin-embedded sections from the specimens of adenocarcinoma (n = 108) , peritumoral tissues (n=46) . Adenomatous polyp (n=15), and chronic cholecystitis (n = 35). Results The positive rates of gal-3 and SNA were significantly higher in adenocarcinoma (62. 0%, 66. 7%) than in peritumoral tissues (39. 1%,45.6%), adenomatous polyp (26.7%, 33.3%) and chronic cholecystitis (11.4%, 11.4%)(P<0. 05 or P<0. 01). The positive gal-3 and SNA in benign cases showed atypical hyperplasia of the epthelium. The positive rates of gal-3 and SNA expression were significantly lower in well-differentiated adenocarcioma, mass with a maximal diameter of <2 cm, absence of lymph node metastasis,and absence of invasion to adjacent tissues than in poor-differentiated adenocarcinoma, mass with a maximal diameter of ≥2 cm, lymph node metastasis and invasion to adjacent tissues. (P<0. 05 or P<0. 01). There was a significant correlation between the expressive levels of gal-3 and SNA in gallbladder adenocarcinoma (x2=9. 51, P<0. 01). Conclusions The expressive levels of gal-3 and SNA lectins had important effects on carcinogenesis, progression and biologic behaviors of gallbladder cancer. Patients with positive gal-3 and /or SNA expressions had poor prognosis.

Objective To explore the treatment effect of Zuogui pill (ZGP) on immune premature ovarian failure rats.Methods Female mice model of POF was established by multiple sites subcutaneous injection of zona pellucida 3,and treated with different dosage ZGP (low, middle and high),with prednisone and diaethylstilbestrol as positive control. We detecteed apoptosis rate of granulosa and oocyte of murine ovaries by tunel method and observd the change of sexual cycle and weight. Results Compared with the control group,the weight of model group rat in the third to eighth weeks was significant difference (P

Objective To establish a model of pancreatic cancer induced by 7,12-dimethylbenzathracene (DMBA) in SD rats, and to detect the expression levels of RAD51 and Myc-associated factor X (MAX) and their effect on carcinogenesis of rat pancreas. Methods Ninety SD rats were randomly divided into 3 groups: a model group, an intervention group, and a control group. DMBA was directly implanted into the parenchyma of rat pancreas (the model group and the intervention group). Rats in the intervention group were treated with 1 mL trichostatin A (TSA) saline solution (1 μg/mL) via ip weekly. Rats within 3～5 months in the model group and the intervention group were executed and observed by macrograph and under microscope. Meanwhile, the rats in the control group were executed at 5th month. The EnVision~(TM) immunohistochemistry to assay the expression levels of RAD51 and MAX was used in conventional paraffin-embedded sections from the above pancreatic specimens.Results The incidence of pancreatic cancer in the model group within 3-5 months was 48.7% (18/37), including 17 ductal adenocarcinomas and 1 fibrosarcoma. The incidence of pancreatic cancer in the intervention group within 3-5 months was 33.3%(12/36), including 11 ductal adenocarcinomas and 1 fibrosarcoma. The maximal diameter of mass in the model group was significantly higher than that in the intervention group (P＜0.05). No pathological changes were found in pancreas of the control group and other extra-pancreatic main organs of the model group and the intervention group (such as the liver, biliary tract, gastrointestine tract, kidney, and lung). The positive rate of RAD51 was significantly higher in ductal adenocarcinoma in the model group, the intervention group, and the model group +the intervention group than those in corresponding groups of non-cancerous pancreatic tissues (P＜0.01), but the positive rate of MAX expression was opposite to RAD51 expression(P＜0.01). The positive tissues of RAD51 expression and/or negative tissues of MAX expression in non-cancerous tissues showed atypical-hyperplasia of ductal epitheli. Pacncreas of the control group showed the negative expression of RAD51 and positive expression of MAX. Two cases of fibrosarcoma showed the negative expression of RAD51 and MAX.Conclusion DMBA directly implanted into the parenchyma of pancreas can obtain an ideal pancreatic cancer model with high incidence in a short time. The TSA might have an inhibitive effect on carcinogenesis and growth of rat pancreas. The over-expression of RAD51 and/or lose-expression might have important effect on carcinogenesis induced DMBA in rat pancreas.

ObjectiveTo study the expression of ABCG2, SFRP2, BRMS1 and HPA and detect their clinicopathologicalsignificancesinthebenignandmalignatntlesionsofthegallbladder.MethodsEnVisiom immunohistochemical method for determining the expressions of ABCG2, SFRP2,BRMS1 and HPA was used in paraffin-embedded sections of surgical resected specimens from gallbladder adenocarcinoma (n =108), peritumoral tissues (n =46 ), adenomatous polyp (n =15 ), and chronic cholecystitis ( n =35 ).ResultsThe positive rates of ABCG2 and HPA expression were significantly higher in gallbladder adenocarcinoma than that in peritumoral tissues, adenomatous polyp and chronic cholecystitis (P ＜ 0. 05 or P ＜ 0. 01 ) ; The positive rates of SFRP2 and BRMS1 expression were significantly lower in gallbladder adenocarcinoma than that in peritumoral tissues, adenomatous polyp and chronic cholecystitis(P ＜0. 05 or P ＜0. 01 ). The positive cases of ABCG2 and/or HPA as well as negative ones of SFRP2 and/or BRMS1in the benign lesions showed moderately-or severely-atypical hyperplasia of gallbladder epithelium. The frequency of samples with positive staining for ABCG2 and/or HPA in cases with small tumor volume (diameter ＜ 2 cm), no lymph node metastasis, and no invasion into surrounding tissues was significantly lower than that in cases with larger tumor volume (diameter＞ 2 cm ), lymph node metastasis, and invasion into surrounding tissues ( P ＜ 0.05 or P ＜ 0. 01 ). However, compared with ABCG2 and/or HPA, the expression of SFRP2 and/or BRMS1 showed an opposite correlation in these cases ( P ＜ 0. 05 or P ＜0. 01 ). Unitivariate Kaplan-Meier analysis showed that increased expressions of ABCG2 (P =0. 019) and HPA ( P =0. 016) or decreased expression of SFRP2 ( P =0. 019) and BRMS1 ( P =0. 008 )were associated with poorer overall survival, respectively. Multivariate Cox regression analysis showed that increased expression of ABCG2 (P =0. 018 ) and HPA ( P =0. 019) and/or decreased expression of SFRP2 (P =0. 015 ) and BRMS1 ( P =0. 011 ) were independently poor-prognostic predictors in gallbladder adenocarcinoma.ConclusionsThe expression of ABCG2, SFRP2, BRMS1 or HPA might be closely related to the carcinogenesis, clinical biological behaviors, and prognosis of gallbladder adenocarcinoma.

Objective To establish a pancreatic cancer model in Sprague Dawley(SD) rats,and to study the distribution and the counts of myofibroblast(MF) in pancreatic cancer and non-cancerous pancreatic tissues.MethodsDirectly implanted DMBA into pancreas parenchyma of SD rats and established TSA intervening group and control group. The carcinogenesis of rats executed within 3～5 months were inspected by HE stain and microscopy for pathomorphological changes.Myofibroblast(MF) was stained by Heidenains method. Results (1)The prevalence of pancreatic cancer in experimental group was 48.7%(18/37), including 17 pancreatic ductal adenocarcinoma and 1 fibrosarcoma. The prevalence of pancreatic cancer in intervering group was 33.3%(12/36), including 11 pancreatic ductal adenocarcinoma and 1 fibrosarcoma. The maximal diameters of tumor mass of experimental group was higher than that of intervering group (P

0.05). The staining intensity of Smad4 in follicles changed in relation with their development. Its expression in oocytes of antral and mature follicles was significantly decreased, as compared to that of preantral follicles (P0.05). The RT-PCR demonstrated that Smad4 mRNA was expressed in all developmental stages of the rat ovary, and from the 3rd week on, the expression of Smad4 mRNA was significant higher than that of the 1 day postnatal. CONCLUSION: The expression of protein and mRNA of Smad4 in the rat ovary indicate that TGF-?_s may regulate the folliculogenesis by Smad signal transduction model.

Objective To study the expressive levels of EZH2 and PTEN in pancreatic cancer and non-cancerous tissue,and the effects on carcinogenesis of rat pancreas.Methods dimethylbenzathracene(DMBA) was directly implanted into the parenchyma of rat pancreas(group A,group B).The rats of group B were treated with 1 mL trichostatin A(TSA) solution(1?g/mL) intravenously per weer 1 week after the model were set up.The rats of group A,B were killed within 3-5 months and the rats in the control(C group) were executed at 5 months to observe the develope of pancreatic cancer by macrograph and microscopy,The EnVisionTM immunohistochemistry was used to assay the expression of EZH2 and PTEN in above pancreatic specimens.Results(1) The incidence of pancreatic cancer within 3-5 months in group A was 48.7%(18/37),including 17 cases of ductal adenocarcinoma and 1 case of fibrosarcoma.The incidence of pancreatic cancer in group B was 33.3%(12/36),including 11 cases of ductal adenocarcinoma and 1 cases of fibrosarcoma.The mean maximal diameter of mass was significantly higher in group A than that in group B(P 0.05).The non-cancerous pancreatic tissues with positive expression of EZH2 and/or negative expression of PTEN showed mild to severe atypical hyperplasia of ductal epithelium.An inconsistency was found between the expression of EZH2 and PTEN in ductal adenocarcinoma(P =0.045).Pancreas of group C showed negative expression of EZH2 and positive expression of PTEN.Two cases of fibrosarcoma showed negative expression of EZH2 and PTEN.Conclusions By use of higher dose of DMBA directly implanted into the parenchyma of pancreas,high incidence of pancreatic cancer can be obtained.TSA could have an inhibitive effect on carcinogenesis and growth of pancratic cancer.The activation of EZH2 gene and inactivation of PTEN gene might have Key effects on pancreas carcinogenesis induced by DMBA in rat.

Objective To observe the effect of soy isoflavones on incretion of female rats. Methods 42 fe-male rots of 12 weeks old were divided into 3 groups at random. Low dose group were perfused with 40mg · kg-1·d-1 into stomach per day;high dose group were perfused with 80mg·kg-1·d-1 into stomach per day;control group were perfused with physiological saline into stomach. After 14 days,collected blood via jugular vein and tested 4 inde-xes-FSH, LH,E2 and P with chemoluminescence method. Results In 3 groups of soy isoflavones low doee group,soy isoflavones high dose group and control group,FSH were (0.13±0.021) mIu/ml, (0.12±0.018) mIu/ml, (0.15 ±0.024) mIu/ml respectively; LH were (0.17±0.032) mIu/ml, (0.15±0.043) mIu/ml, (0.18±0.047) mIu/ml respectively, which has no obvious differences (P > 0.05) ; E2 were (0.09±0.03) nmol/L, (0.03±0.03) nmol/L, (0.12±0.04) nmol/L respectively; P were (1.43±0.27) ng/ml, (2.82±0.37) ng/ml, (0.67±0.56) ng/ml re-spectivdy. Compare those 3 groups, E2 activeness of soy isoflavones group decreased obviously; but P activeness of soy isoflavones group increased obviously. Conclusion Soy isoflavones has no obvious effect on hypophysis hormone of rat, but the soy isoflavones of different dosages may measure the secretion of female rat ovary hormones by estrogen ac-tivity and antiestrogen activity.

Objective:To investigate the effect of CpG ODN on the immune responses and immune-contraception induced by ZP~(121-140) synthetic peptide.Methods: BALB/e mice were given an injection into the left tibialis anterior muscle of ZP~(121-140) synthetic peptide with 20 μg CpG ODN or CFA,then the mice were given other injections at 2,4,6 weeks using the same formulation.The mice' s blood was collected before each vaccination and after the last vaccination every 2 weeks.The specific IgG and IgA in sere and non-specific cytokines IFN-γ,TNF-α,IL-10 in vaginal mucosa were measured by ELISA.The ovarial pathological changes were undertaken using hemattxylin and eosin-stained paraffin sections.Results:The specific IgG in sera and IgA in vaginal mucosa induced by ZP~(121-140) synthetic peptide combined with CpG ODN were no more than those of ZP~(121-140) synthetic peptide combined with CFA.There were significant increases in IFN-γ,and TNF-α when CpG ODN was mixed with ZP121-140 synthetic peptide and the increase of CpG ODN was more significant than that of CFA.Otherwise there was a significant decrease in IL-10 when CpG ODN was mixed with ZP~(121-140) synthetic peptide and the decrease of CpG ODN was more significant than thai of CFA.There was no significant difference in the rate of pregnancy between CpG ODN group and CFA group,but the average number of birth mice in CpG ODN group was less than that in CFA group.No pathological changes were found in the ovaries of experimental mice.Conclusion: The adjuvant effect of CpG ODN is more advantageous than that of CFA in contraception vaccine research.