2.Effect of combined enteral and parenteral nutrition on nutritional and immune status of patients after proximal gastrectomy
Jie ZHANG ; Junben WU ; Shujing WANG ; Tongjun ZHANG ; Bengang GONG
Chinese Journal of General Practitioners 2011;10(2):131-133
Parenteral nutrition (PN) was given to 40 patients with upper gastric carcinoma after proximal gastrectomies; and full enteral nutrition (EN) was subsequently given when bowels function recovered.The nutritional indicators including serum albumin ( Alb),prealbumin .(PA) and transferring,and immunological indicators including IgA,IgG,IgM,C3,C4 were measured before and 1st,8th day after operation.The data were processed by software SPSS 13.0.The average length of hospital stay was 14 d and the aerofluxus time was (58 ±6)hours.There were no changes in blood biochemistry,hepatic function and renal function pre- and post-operation( P >0.05 ).The nutritional and immune indicators except the IgM in 1 st day after operation were decreased significantly ( P < 0.05 ).The immune indicators except the IgG in 8th day after operation were significantly improved in comparison of those before and 1st day after operation ( P < 0.05 ).Post-operative complications occurred in 3 patients including 1 case of subphrenic infection and 2 cases of anastomotic leakage.After proper treatment,all patients recovered well.Combined application of EN and PN may improve nutrition and immune status of patients after proximal gastrectomy.
3.Effects of MMI-166 on proliferation and apoptosis in human pancreatic cancer SW1990 cell
Bengang GONG ; Huaiyong XU ; Piguang CHENG ; Chongchong GAO ; Junben WU
Chinese Journal of Pancreatology 2012;12(2):100-102
ObjectiveTo investigate the effects of MMI-166 on the proliferation and apoptosis of human pancreatic cancer SW1990 cells.MethodsMMI-166 of different concentrations (25,50,100 μg/ml) were used to treat human pancreatic cancer SW1990 cell for 24,48 h.Effect of MMI-166 on cell proliferation wasdetected by 3- (4,5-dimethyl-2-thiazole) -2-5-biphenly-tetrazole bromide ( MTT ) method and effect on cell apoptosis was tested by Annexin V-PI method and flow cytometry (FCM).ResultsTwenty-four hours after MMI-166 treatment of different concentrations (25,50,100 μg/ml),the inhibitory rates of the cells were (34.23±3.87)%,(44.81 ±2.01)%,(53.91 ±1.74)%,and the corresponding values were (39.95 ± 1.83) %,( 52.26 ± 3.46 ) %,( 63.20 ± 2.48 ) % at 48 h,which suggested a time-and concentrationdependent manner.The cell's apoptosis rates were (11.19 ±0.47)%,(23.01 ±0.53)%,(28.10 ± 0.52) % at 24 h,and the corresponding values were ( 11.19 ± 0.47 ) %,( 23.01 ± 0.53 ) %,( 28.10 ± 0.52)% at 48 h,which were significantly higher than those in control group [ (0.09 ±0.12)%,P <0.05].ConclusionsMMI-166 can inhibit proliferation and induce apoptosis of human pancreatic SW1990 cell in a time- and concentration-dependent manner.
4.The therapeutic of nutrition support with somatostatin in patients with gastro-esophagus leakage after proximal gastrectomy for gastric cancer
Junben WU ; Shujing WANG ; Tongjun ZHANG ; Bengang GONG
Chinese Journal of Primary Medicine and Pharmacy 2010;17(14):1952-1953
Objective To study the effect of nutrition support with somatostatin in patients with gastro- esophagus leakage after proximal gastrectomy. Methods 6 patients with gastro-esophagus leakage after proximal gastrectomy for gastric cancer from July 2004 to September 2009 were enrolled. Then, the patients were treated with improved drainage, parenteral & enteral nutrition and somatostatin. Furthermore, nutrition index and duration of recovery were investigated respectively. All data were analyzed between preoperative and postoperative by student's T-Test.Results 6 patients were cured after non-operation. The average period of in-hospital was 32 days. Compared with the post-leakage day 1 ,the nutrition states were significantly improved when patients recovered( P <0. 01 ). Non-complication happened. Conclusion It was an effective way to improve the nutrition state and to promote the gastro-esophagus leakage healing.
5.Effects of MMI-166 on apoptosis and apoptosis-related protein expression in human pancreatic cancer SW1990 cells
Chongchong GAO ; Bengang GONG ; Xiuliang XIA ; Dekun SONG ; Huaiyong XU
Chinese Journal of Pancreatology 2013;(1):24-27
Objective To investigate the effects of MMI-166 on apoptosis and apoptosis-related protein expression of human pancreatic cancer SW1990 cells and its transplanted tumor,and explore possible mechanism.Methods The human pancreatic cancer xenograft model was constructed by using human pancreatic cancer SW1990 cells.Tumor-bearing nude mice were randomly divided into control and MMI-166 groups,and they were treated with normal saline or MMI-166 (200 mg · kg-1 · d-1) for 28 days.Apoptosis index (AI),p53,c-Myc,Bax,Bcl-2,Survivin,Caspase-1,Fas proteins were detected by deoxynucl-eotidyl transferase-mediated nick end labeling (TUNEL method) and Western blot.MMI-166 of different concentrations (0,50,100 μg/ml) were used to treat human pancreatic cancer SW1990 cell for 24 h.The c-Myc,Survivin proteins expressions were measured by Western blotting.Results Apoptosis index in MMI-166 group was 81.1 ±7.9,which was significantly higher than that in control group (21.3 ±2.2,P =0.000) ; the expressions of c-Myc,Survivin were 7715 ± 2229,4594 ± 1240,which were significantly higher than those in control group (16870 ± 2446,15208 ± 1903,P =0.000) ; the expressions of p53,Bax,Bcl-2,Caspase-1,Fas were not significantly different from those in control group.After 50,100 μg/ml MMI-166 treatment,the expression of c-Myc was significantly down-regulated (0.098 ± 0.003,0.073 ± 0.008 vs.0.169 ± 0.007,F =189.361,P < 0.05) ; and the expression of Survivin was not significantly changed.Conclusions MMI-166 may induce cell apoptosis of SW1990 by down-regulating the expression of c-Myc.
6.Expression and clinical significance of Survivin and COX-2 in human ampullary carcinoma
Dong XUE ; Kai ZUO ; Xinjun LI ; Jianqiang WANG ; Chengde ZHANG ; Piguang CHENG ; Tongjun ZHANG ; Bengang GONG
Journal of International Oncology 2012;39(9):713-717
Objective To study the expression of Survivin and COX-2 in ampullary carcinoma and their clinical significance.MethodsThe expression of Survivin and COX-2 proteins were tested by EnVision immunohistochemistry in 40 cases of ampullary carcinomas,and 8 cases of normal ampulla of vater as the controls.ResultsThe positive rate of Survivin in ampullary carcinonas was significantly higher than that of the controls(82.5% vs 0,P < 0.01 ). The expression of Survivin in ampullary carcinoma was correlated with duodenal invasion,pancreatic invasion and lymph node metastasis ( P < 0.05 ).Significant difference was also observed in the expression rate of COX-2 between the patients with ampullary carcinoma and the normal controls (67.5% vs 0,P < 0.01 ).The expression of COX-2 in ampullary carcinoma was correlated with duodenal invasion,pancreatic invasion and lymph node metastasis (P < 0.05). Significantly positive correlation was found between the expression of Survivin and COX-2 by using spearman correlation analysis ( r =0.383,P =0.015).ConclusionThe specific up-regulation of COX-2 gene and Survivin gene may play an important role in the genesis and development of ampullary carcinoma.COX-2 and Survivin may be used as early diagnosis markers and potential therapeutic targets in ampullary carcinoma.
7.Expression of Twist in pancreatic carcinoma and its role in epithelial mesenchymal transition
Tongjun ZHANG ; Dong XUE ; Min LIU ; Xinjun LI ; Chengde ZHANG ; Piguang CHENG ; Bengang GONG
International Journal of Surgery 2014;41(6):382-386,封3
Objective To investigate the relationship of Twist induced epithelial mesenchymal transitions (EMT) during pancreatic carcinoma progression.Methods The expressions of Twist,N-cadherin and Vimentin proteins were tested by immunohistochemistry in 42 cases of pancreatic carcinomas and 26 cases of adjacent paracancerous tissues.Results The positive rates of Twist,N-cadherin and Vimentin in 42 cases of pancreatic carcinomas were 76.2%,59.5% and 57.1%,respectively.The positive rate of Twist,N-cadherin and Vimentin were all significant between pancreatic carcinomas and paired tumor-adjacent paracancerous tissues (all P <0.001).The differences of the expression of Twist,N-cadherin and Vimentin in pancreatic carcinoma of tumor differentiation,TNM stage,neural invasion and lymph node metastasis were significant (all P < 0.05).Significantly positive correlation was found between the expression of Twist and the others (N-cadherin and Vimentin) by using spearman correlation analysis (r =0.506,P =0.001 ; r =0.417,P =0.006).Significantly positive correlation was found between the expression of N-cadherin and Vimentin by using spearman correlation analysis(r =0.462,P =0.002).Conclusions Twist signaling pathway activation might mediate pancreatic epithelial cells to EMT and then promote pancreatic carcinoma invasion and metastasis.
8.Expression and significance of Survivin and PTEN in human ampullary carcinoma
Dong XUE ; Wen WANG ; Tongjun ZHANG ; Xinjun LI ; Jianqiang WANG ; Chengde ZHANG ; Bengang GONG ; Yuxin CHEN
Journal of Chinese Physician 2012;14(3):325-328
Objective To study the expressions of survivin and PTEN in ampullary carcinoma and their clinical significance.Methods The expressions of Survivin and PTEN proteins were tested by EnVision immunohistochemistry in 40 cases of ampullary carcinomas and 8 cases of normal ampulla of vater as control.Results The positive rate of Survivin in ampullary carcinomas was significantly higher than normal human controls (82.5% vs 0%,P < 0.01 ).The differences of the expression of Survivin in ampullaty carcinoma of duodenal invasion,pancreatic invasion,and lymph node metastasis were significant ( P <0.05 ).Significant differences were also observed in the expression rate of PTEN hetween the patients with ampullary carcinoma and the normal controls (50% vs 100%,P < 0.01 ).The differences of the expression of PTEN in ampullary carcinoma of duodenal invasion,pancreatic invasion,and lymph node metastasis were significant ( P < 0.05 ).Significantly negative correlation was found between the expression of Survivin and PTEN by using spearman correlation analysis ( r =-0.57,P < 0.01 ).Conclusions The abnormal expression of Survivin and PTEN gene may promote tumor genesis and progression of ampullary carcinomas and it may be used as the marker for prognosis.
9.Expression of matrix metalloproteinases (MMP-2 、MMP-9) in the pancreatic carcinoma
Junben WU ; Jie ZHANG ; Piguang CHENG ; Shujing WANG ; Bengang GONG ; Huaiyong XU
Chinese Journal of Pancreatology 2012;12(1):30-32
ObjectiveTo study the expression of matrix metallopro-teinase-2 (MMP-2),matrix metalloproteinase-9 (MMP-9) in the pancreatic carcinomas. Methods MMP-2,MMP-9 expression were detected by immunohistochemistry in surgically resected specimens ( cancer tissues,cancer-adjacent tissues and normal tissues) from 30 PC patients,11 pancreatitis patients and 6 normal patients.the results were analyzed combined with clinical pathologic characteristics.The data was analyzed by Chi-Square test.ResultsThere was no expression of MMP-2,MMP-9 in normal pancreatic tissues.Both of MMP-2 and MMP-9 expressions were 18.2% in chronic pancreatitis titssues.Expression of MMP-2,MMP-9 were higher in cancer tissues than in cancer-adjacent tissues(63.3% vs 23.3%,56.7% vs 40.0%,P <0.05).There were positive correlation between MMP-2,MMP-9 expression and lymph nodal metastasis,tumor sizes,clinical stage and differentiation of tumor(P <0.05).Conclusions The expression of MMP-2 and MMP-9 was high,and linked to its unfavorable prognosis.
10.Effects of a new matrix metalloproteinase inhibitor, MMI-166, in nude mouse xenografts of human pancreatic cancer
Huaiyong XU ; Bengang GONG ; Chongchong GAO ; Mengyu LI ; Junben WU ; Tinghai XIANG ; Piguang CHENG
Chinese Journal of Hepatobiliary Surgery 2012;(11):859-862
Objective To investigate of the MMI-166 on the expression of MMP-2,MMP-9 and the cell apoptosis of nude mouse xenografts of SW1990 human pancreatic cancer cells.Methods Establishment of control and experimental groups,randomly,the human pancreatic cancer xenograft model of SW1990 was constructed.The control group was treated with normal saline,and experimental group was treated with MML-166 (200 mg · kg-1 · d-1).The tumor volume and tumor inhibition rate was measured by vernier caliper through length and short diameter.The expression of MMP-2 and MMP-9 protein was observed using immunohistochemistry in the tumor tissues.Apoptosis index was detected by deoxynucleotidyl transferase-mediated nick end labeling (TUNEL method).Results The tumor volume of MMI-166 group (1252.30± 464.84) mm3 was less than the control group (2241.82±208.06) mm3,significantly.The inhibition rate was 34.47% between the experimental groups (treat with MMI-166) (1.42±0.15) g and control group (2.17±0.20) g.The expression of MMP-2 (2.80 ± 1.10) % and MMP-9 (2.60 ± 1.52) % protein was significantly downregulated in MMI-166 group,compared with the control group.Apoptotic index in the experimental group (75.60±9.71) % was higher than the control group (17.40 ± 10.14) %,significantly.Conclusion The mechanism of MMI-166 inhibiting pancreatic tumor growth and inducing apoptosis may be related to the suppression of MMP-2 and MMP-9 protein expression.