Background and purpose:Members of the NF-kappaB family of transcription factors could activate bcl-2 anti-apoptotic genes at the transcriptional level and then regulate cell apoptosis.The p53 tumor suppressor gene has a clear role!in both the regulation of cell cycle and expression of apoptosis-related bcl-2 family.There were few reports about the expression of NF-?Bp65,bcl-2,bcl-xL and their relationships with p53 and cell apoptosis in pancreatic cancer.The present study was designed to analyze the expression of the antiapoptotic molecules nuclear factor kappaB(NF-?Bp65),bcl-2 and bcl-xL in pancreatic ductal carcinoma(PC) and their correlations to the apoptosis index and p53 expression.Methods:Immunohistochemical analyses of P53 protein was performed on 25 cases of pancreatic ductal carcinoma and 9 cases of normal pancreas;Western blot was used to evaluate NF-?Bp65 protein and RT-PCR for bcl-2 mRNA and bcl-xL mRNA of 25 cases of pancreatic ductal carcinoma and 9 NP cases.The apoptosis was determined by TUNEL.Results:The positive rate of P53 protein was 56%(14/25)in PC tissues,significantly higher than that in NP tissues(P

Objective To study the changes of blood gastrointestinal hormones concentration and effect of early feeding in premature infants on it. Methods Seventy-two premature infants were divided into 4 groups: self-sucking (group Ⅰ),tube feeding (group Ⅱ),minimal enteral nutrition (MEN, group Ⅲ), non-nutritive sucking (NNS, group Ⅳ). The plasma motilin and serum gastrin were measured within 12 hour before enteral feeding, on day 3 and day 7 of life by radioimmunoassay. 16 full-term neonates were studied as control. Results (1)The serum concentration of gastrin in premature infants before enteral feeding, on day 3 and day 7 were (61?24)ng/L,(93?37)ng/L,(126?45) ng/L respectively, which were significantly lower than that of control(126?30) ng/L,(135?34)ng/L,and (178?46)ng/L,(P

Objective:To investigate whether PUMA gene transfection can increase sensitivity of pancreatic cancer cells (PC) to 5-FU-induced apoptosis. Methods: PUMA-pCEP4 containing full length PUMA cDNA or pCEP4 was transfected into human pancreatic cancer cell line AsPC-1 by lipofectamine transfection, G418 selection was used to select positive cells. AsPC-1, AsPC-1/PUMA and AsPC-1/pCEP4 cells were separately treated with serial concentrations of 5-FU(0.01-100 ?mol/L). MTT assay was used to determine the cell survival rate in each group and IC50 of 5-FU was calculated. TUNEL,FCM and DNA ladder observation were employed to study cell apoptosis. Western blotting was performed to detect the expression of PUMA protein. Results: The 5-FU IC50 values of AsPC-1, AsPC-1/PUMA and AsPC-1/pCEP4 cells were (12?1.9)?mol/L,(1.6?0.4)?mol/L and (10.4?1.6) ?mol/L, respectively, with the sensitivity of AsPC-1/PUMA cells increased by 7.5 folds. 5-FU induced cell apoptosis of AsPC-1 cells in a dose-dependent manner, with the apoptosis of AsPC-1/PUMA cells more prominent than those of AsPC-1 and AsPC-1/pCEP4 cells. Low concentration of 5-FU (0.1 ?mol/L) induced few apoptosis of AsPC-1/pCEP4 cells([1.14?0.28]%) and AsPC-1 cells ([0.9?0.23]%), and induced apoptosis in AsPC-1/PUMA cells([6.47?1.42]%). High concentration of 5-FU (1.0 ?mol/L) induced apoptosis in all groups, with that in AsPC-1/PUMA cells([34.54?9.36]%) significantly higher than those in AsPC-1/pCEP4 cells([15.8?5.15]%) and AsPC-1 cells ([12.8?3.74]%, both P

OBJECTIVE:To optimize the management of drug inventory so as to reduce days of drug turnover. METHODS:Depending on the information management system of the hospital,the method of quality control circle was used to analyze the rea-sons of long days of drug turnover,corresponding measures for continuous improvement were developed,and the effects of the ac-tivities in the quality control circle were evaluated on the basis of the rate of achieving the goal and the growth rate of circle mem-bers. RESULTS:In the activities of the quality control circle,based on the factors such as personnel,drugs and the method,corre-sponding measures were developed in respect of permanent applicants for drugs,the upper and lower limits of drugs to be gotten by the applicant,the increase in the frequency of purchase,“zero inventory”management for part of drugs,and the optimization of the generation program of purchase orders,where the percentage of the drugs with the turnover days within 15 d was increased from 72% to over 85%,the rate of achieving the goal was 107.9%. All the circle members significantly grew as to the application of the method of quality control circle,sense of responsibility,initiative,team spirit,communication and coordination,with growth rate of 12%-28%. CONCLUSIONS:The activities of the quality control circle have achieved a good effect in optimizing the drug inventory management of our hospital and increased the percentage of the drugs with the turnover days within 15 d.

AIM: To isolate and identify flavones from Taxillus chinensis (DC.) Danser, to establish the content determination of quercetin. METHODS: The flavones were isolated and purified by column chromatography on silica gel. Its structures were identified by spectroscopic methods, including IR, UV, MS. HPLC was used to assay the quercetin. RESULTS: quercetin and quercitrin content were determined. CONCLUSION: This method is accurate, reliable with good separability and reproducibility, it can be applied as standard for the control of Taxillus chinensis (DC.) Danser.

Objective To study the effect of PUMA gene mediated by recombinant adenovirus vector combined with radiation on the pancreatic carcinoma. Methods The PANC-1 cells were infected with Ad-PUMA (MOI = 10, 50 and 100, respectively) for 48 h. The expression of PUMA mRNA and protein was detected by RT-PCR and Western blot, respectively. PANC-1 cells were divided into 4 groups: control group, transfection group, irradiation group and combined treatment group. The cell growth inhibition rate and apoptotic rate of PANC-1 cells were assessed by MTT assay and flow cytometry. Human pancreatic carcinomas were transplanted subcutaneously in nude mice, which were randomized into 4 groups: control group, transfection group, irradiation group and combined treatment group. Tumor growth rate and apoptotie index at different time points were recorded in 35 days. Results The expression of PUMA mRNA and protein was increased with the increase of MOI of Ad-PUMA, which was does-dependant (MOI = 10, mRNA = 0.46 ± 0.02, protein = 0. 75 ±0.09;MOI=50, mRNA= 1.12±0.09, protein = 1.01 ±0.18;MOI= 100, mRNA= 1.50±0.08, protein=1.80 ± 0.15 ;P < 0.05). The proliferation of PANC-1 cells was suppressed significantly when transfected by Ad-PUMA in a dose-dependent manner(r = -0.986 55), which was more significant combined with radiation (r = -0.971 26, P < 0.05). Meanwhile, the apoptotie rate was increased in the same manner [for pre- and post-irradiation,which was (45.4 ± 5.26) % and (73.2 ± 6.62) %, respectively, P < 0.05]. From 7 to 35 d after PUMA gene transfection and radiotherapy, the tumor growth was significantly slower than those of irradiation group, transfection group and control group [35 d after therapy, the volume of tumor was (19.82 ± 6.45)mm3 ,(39.5 ± 9.23)mm3 , (33.6 ±3 10.3)mm3 and (52.0 ± 11.43)mm3 , respectively, P < 0.05]. And the apoptotic index was increased in the same manner (AI = 0.43 ± 0.05, 0.29 ± 0.10, 0.24 ± 0.05 and 0.00 ± 0.00, respectively, P < 0.05). Conclusions Recombinant adenoviral-mediated PUMA gene combined with irradiation could increase the cell-killing effect on pancreatic carcinoma. It is better than that of either one kind of therapy.

Objective To investigate the expression of matrix metalloproteinase-2 (MMP-2)in pancreatic carcinoma and the relationship between MMP-2 with tumour clinicopatholngical features. Methods The expression of MMP-2 was detected by S-P immunohistochemistry in 36 cases with pancreatic carcinoma and 14 normal pancreat-ic tissues. Results The positive expression rate of MMP-2 was 66.7% (24/36) in pancreatic carcinoma tissue and 14.3% (2/14) in normal pancreatic tissues (χ2 = 3. 587, P < 0.01 ) ;The expression rate of MMP-2 in pancreatic carcinoma tissue with positive-node was 86.7% ( 13/15 ) ,which was higher than that with negative-node,which was 52.4% ( 11/21 ) ( P < 0.05 ) ; As to TNM staging in pancreatic carcinoma, the expression rate of MMP-2 was 41.2% (7/17) with Ⅰ,Ⅱ staging and 89.5% (17/19) with Ⅲ,Ⅳ staging(χ2=9.418,P <0. 01 ) ;The expression rate of MMP-2 was 50.0% (5/10) ,66.7% (10/15) and 72.8% (8/11) in highly,moderately and poorly differentiated pancreatic carcinoma(P > 0.05 ). Conclusions The expression of MMP-2 is strengthened significantly in pancreatic carcinoma tissue and involved in turnout invasion and metastasis features; MMP-2 might be regarded as one more marker for the invasive properties of pancreatic carcinoma.

Objective To discuss the mechanism of obesity related glomerularpathology,we detect the expression of Podocin in glomerular podocytes of obesity rats induced by high fat diet.Methods The rats were divided into 2 groups:normal control group(Con group) and obesity group(Ob group).At the 14th week of molding,the body weight,body long,tail long,kidney weight,uria microalbumin,RBP,uria Cre,blood glucose,cholesterol,triglyceride,HDL-C,UA,Cre,BUN,and insulin were measured.The Lee's index,insulin resistance index,insulin sensitive index,Ccr and relative kidney weight were calculated.The tissue structures of the kidney of both groups were studied under light microscope and transmission electro microscope.The expression of Podocin in podocyte of rats' kidney was measured by immunohistochemistry and western blot.Results ①The difference had no statistical significance between the 2 groups in gender,weight,body length,tail length and Lee's index at the beginning (P ＞ 0.05).But after 14 weeks,the weight,body length and Lee's index of Ob group were significantly higher than those of Con group(P ＜0.05).②At the 14th week,the fasting plasma glucose of Ob group was higher than that of Con group (P ＜ 0.05),and the high density lipoproteins (HDL) of Ob group was lower than that of Con group(P ＜ 0.05).However,the difference had no statistical significance in urine acid (UA),serum Cre and blood urea nitrogen (BUN) between the 2 groups (P ＞ 0.05).③The urine protein and endogenous creatinine clearance rate(Ccr) in Ob group were higher than those of Con group (P ＜ 0.05,P ＜0.01).④The relative kidney weight of Ob group was lower than that of Con group(P ＜ 0.05).⑤For rats in Ob group,glomerular hypertrophy,the Bowman' capsule stricture,abnormality in the segmental capillary wall and extraglomerular mesangial cell were observed under light microscope.The glomerular podocytes became broader and foot process of podocyte in Ob group became microvillus-like in Ob group under transmission electro microscope.⑥Immunohistochemistry and western blot showed that the expression of Podocin in podocyte of kidney decreased in Ob group.Conclusions The expression of Podocin decreased in podocyte of kidney in obesity rats.At the same time,the ultrastructure of podocytes was changed.Those may be one of the reasons for protein urine related to obesity.

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AIM: To study the pharmacokinetics of flavonoids in mice after ig administration of Xiexin Decoction (Radix et Rhizoma rhei, Rhizoma coptidis, Radix Scutellariae). METHODS: Mice were given a single ig dose of Xiexin Decoction 4.5, 9.0 or 18.0 g/kg. Flavonoids in plasma were analysed by HPLC and plasma concentration of baibalin was determined. Pharmacokinetic parameters were calculated from the plasma concentration-time data with the DAS software package. RESULTS: After ig administration of Xiexin Decoction in mice, baicalin, baicalein and another flavonoid were detected in plasma and baicalin concentration was the highest of the three kinds of flavonoids in plasma. After a single ig dose of Xiexin Decoction 4.5, 9.0 or 18.0 g/kg, the pharmacokinetic parameters of baicalin were as follows:T_ 1/2 =2.77、5.69、6.20 h,AUC_ 0-∞ =9.09、23.49、39.57 ?g?h/mL,CL= 12.52 、 6.962 、 11.50 L?h/kg,V_d= 50.11 、 79.56 、 102.95 L/kg,C_ max1 =1.89、3.32、4.79 ?g/mL(T_ p1 = 0.08 h ), C_ max2 =1.46、2.57、4.16 ?g/mL(T_ p2 =3 h), respectively. CONCLUSION: Three kinds of flavonoids can be absorbed after ig administration of Xiexin Decoction in mice, of which baicalin is the major component.