1.Effect of remifentanil on hepatic ischemia-reperfusion injury in rats with liver cirrhosis
Rui JING ; Wan MA ; Gang MA ; Jianzhen WANG ; Yuhua LIU
Chinese Journal of Anesthesiology 2011;31(7):865-867
ObjectiveTo investigate the effect of remifentanil on hepatic ischemia-reperfusion (I/R) injury in rats with liver cirrhosis.MethodsThirty male SD rats weighing 260-300 g were randomly divided into 3 groups (n =10 each):group liver cirrhosis (group C); group liver cirrhosis + hepatic I/R (group I/R) and group remifentanil (group R).Liver cirrhosis was produced in all animals in the 3 goups.I/R injury was induced by 20 min occlusion of the hepatic artery and portal vein entering the middle and left lobes of the liver followed by 4 h reperfusion at 1 week after establishment of hepatic cirrhosis in I/R and R groups.In group R remifentanil was infused iv at 1 μg·kg-1 ·min-1 starting from 10 min before ischemia until the end of 4 h reperfusion.Venous blood samples were taken from inferior vena cava at the end of 4 h reperfusion for measurement of serum ALT and AST activities.The animals were then sacrificed and liver specimens were taken from middle lobe for determination of Bcl-2 and Bax expression (by immuno-histochemistry) and hepatocyte apoptosis (by TUNEL) and microscopic examination.Apoptosis index (percentage of apoptotic cells) was calculated.ResultsI/R significantly increased serum ALT and AST activities,Bax expression and apoptosis index and decreased Bcl-2 expression in group I/R as compared with group C.Remifentanil significantly attenuated the I/R-induced changes in serum ALT and AST activities,Bax and Bcl-2 expression and apoptosis in group R as compared with group I/R.Remifentanil also ameliorated I/R-induced liver damage.ConclusionRemifentanil can auenuate hepatic I/R injury in rats with liver cirrhosis by up-regulating Bcl-2 expression and down-regulating Bax expression and inhibiting apoptosis.
2.Structure of Wheat High Molecular Weight Glutenin Subunits and Their Role in Determining Processing Properties
Jin-Rui ZHANG ; Yong LIU ; Gang LIN ; Guang-Yuan HE ;
China Biotechnology 2006;0(08):-
The high molecular weight glutenin subunits (HMW-GS) are the main components of storage proteins of wheat,and play a critical role in determining the visco-elastic properties of gluten. There are both quantitative and qualitative effects of HMW-GS on the processing properties of wheat. Current knowledge of the molecular structures,compositions and properties of the gluten proteins of wheat is summarized in details,and the role of the HMW-GS in determining the quality of the grain for breadmaking and how their amount and composition can be manipulated leading to changes in dough mixing properties is also discussed systematically.
3.Stem cell-targeted therapy--a new strategy for cancer treatment.
Gang CHEN ; Li XIE ; Bao-rui LIU
Chinese Journal of Oncology 2008;30(11):801-803
ATP-Binding Cassette Transporters
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metabolism
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Adenosine
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analogs & derivatives
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therapeutic use
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Animals
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Antineoplastic Agents
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therapeutic use
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Biomarkers, Tumor
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analysis
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Cell Differentiation
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Diketopiperazines
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Heterocyclic Compounds, 4 or More Rings
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Humans
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Neoplasms
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drug therapy
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pathology
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Neoplastic Stem Cells
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cytology
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metabolism
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Protein Kinase Inhibitors
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therapeutic use
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Pyrimidinones
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therapeutic use
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Quinazolines
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therapeutic use
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Signal Transduction
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Triazines
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therapeutic use
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Wnt Proteins
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metabolism
4.Basic Rehabilitation Service Needs of People with Disability at Zhabei District in Shanghai
Naisi QIAN ; Jingyi XIE ; Gang ZHENG ; Peiyan YU ; Can LUO ; Rui LIU ; Hongliang JIA ; Gang CHEN
Chinese Journal of Rehabilitation Theory and Practice 2009;15(2):188-190
Objective To investigate the factors influencing basic rehabilitation service needs of people with disability at Zhabei District in Shanghai .Methods Primary rehabilitation demands and services of 10 311 disabled persons in Zhabei District were surveyed.Results The screening rate of persons with disability having primary rehabilitation demands was 83.5%. And the gender, age, type of disability, disability level, education, employment might be the factors affecting the primary rehabilitation demands of people with disability.Conclusion The primary rehabilitation service demands vary in deferent types of people with disability. The various services based on the extensive rehabilitation services should be provided to deferent categories of people with disability.
5.Current Status of Special Rehabilitation Service Needs of People with Disability at Zhabei District in Shanghai
Rui LIU ; Jingyi XIE ; Gang ZHENG ; Peiyan YU ; Naisi QIAN ; Can LUO ; Hongliang JIA ; Gang CHEN
Chinese Journal of Rehabilitation Theory and Practice 2009;15(2):191-193
Objective To understand the status of special rehabilitation service demands of people with disability at Zhabei District in Shanghai and to provide the basis for the policy development.Methods Screen rate (SR) was used to indicate the level of demand of rehabilitation service, the data were analyzed with SPSS 13.0 statistical software.Results There were 4 349 persons with disability who demanded the special rehabilitation service; the SR of “on-site rehabilitation service” demands was the highest among the whole persons with disability; the SR of “personalized allotment of supplies and appliances” demands of the intellectual disability and mental disability was lower than the other types; the SR of special rehabilitation service demands of the female, the elderly, the low cultural level, the unemployed and the people with severe disability were relatively higher.Conclusion The form of “on-site rehabilitation services” needs to improve based on the demand of the disabilities; “personalized supplies and appliances” for the intellectual disability and mental disability needs to further develop; the rehabilitation services targeted to the female, the elderly, the low cultural level, the unemployed and the people with severe disability need to improve.
6.Multivariate Analysis of Rehabilitation Services Needs of People with Disability at Zhabei District in Shanghai
Hongliang JIA ; Jingyi XIE ; Gang ZHENG ; Peiyan YU ; Nai QIAN ; Rui LIU ; Can LUO ; Gang CHEN
Chinese Journal of Rehabilitation Theory and Practice 2009;15(2):194-196
Objective To provide the advice on how to optimize the allocation of resources and make other policy through the analysis factors affecting rehabilitation services needs of people with disability at Zhabei district in Shanghai.Methods The factors affecting rehabilitation services needs such as types of disability, disability levels, education, employment, marital status, age and sex were analyzed with Logistic analysis.Results The factors affecting primary rehabilitation services were types of disability, education, employment situation, marital status and sex. And people with disability had the characters of female, hearing disability, retired returned to more primary rehabilitation services, with OR values being 1.219, 1.544 and 1.533 respectively compared with itself controls. And the high educational disable people' will, returning to primary rehabilitation services, was weaker compared with low educational disable people. The factors affecting special rehabilitation services were types of disability and employment situation. And people with disability had the characters of hearing disability, unemployment returned to more special rehabilitation services, with OR values being 2.380 and 1.310 respectively compared with itself controls.Conclusion The rehabilitation needs are different among different groups people with disability, so the factors affecting rehabilitation services needs such as types of disability, education, employment situation, marital status and sex should be taken into consideration while activating primary rehabilitation services, while the types of disability and employment situation should be taken into more consideration while activating special rehabilitation services.
7.Improved islet isolation by three-cannula method for collagenase infusion
Ying CHENG ; Rui SHI ; Guichen LI ; Gang WU ; Shurong LIU ; Yiman MENG ; Ning ZHAO ; Yongfeng LIU
Chinese Journal of Organ Transplantation 2011;32(10):630-632
Objective Pancreas perfusion is an essential step in human islet isolation.To develop the new methods for introductal canulation,collagenase infusion and to observe their effects on islets isolation.Methods A total of 17 pancreases were digested from March 2005 to April 2010.The pancreases were distended by three methods:the standard method (n =3),the one-cannula method (n =11) and three-cannula method (n =3).In the standard group,the pancreases were completely cut into half at the mid-body.Two catheters were inserted into the main duct:one directed toward the tail and the other to the head.In the one-cannula method group,a long tube was inserted into the duct at the head,advancing to the tail In the three-cannula method group,pancreatic parenchyma was then minimally cut at the mid-body and three catheters were inserted into the main pancreatic duct:one at the head (the first catheter) and two at the mid-body,one toward the tail (the second catheter) and the other toward the head (the third catheter).The pancreases were digested by improved Ricordi technique.Ficoll continuous density/grads centrifuge method was performed to purify the islets.DTZ staining was adopted to identify islets and count islet equivalent (IEQ). AO/EB fluorescence examination was used to count active islet percentage.Static glucose stimulating test (SGS) in vitro was designed to estimate islet function and calculate SI.Results The distension volume of the threecannula method group was 1.24 rnl/g pancreas,and higher than the other groups (for the standard group:0.71 ml/g pancreas; for one-cannula method group:0.96 ml/g pancreas,P<0.05).The yield of islet in the three-cannula method group and the one-cannula method group was 2514 and 2270 IEQ/g,which was significantly more than that in the standard group (1914 IEQ/g pancreas,P<0.05).The purity and viability of the islets were 74 %/79.3 %,75.6 %/79.4 % and 78.3 %/84.0 % respectively in the three groups with the difference being not significant among the groups.SI in the one cannula method group (4.74) and the three-cannula method group (5.27) was significantly higher than that in the standard group (3.46).ConclusionThe three-cannula method improved collagenase infusion and the islet yields.
8.Expression and significance of integrin linked kinase in pancreatic carcinoma
Wei LIU ; Shaowei SONG ; Gang MA ; Rui SHI ; Ying CHENG ; Ning LIU ; Kejian GUO
Chinese Journal of Pancreatology 2010;10(1):31-33
Objective To investigate the expression and clinical significance of intergrin linked kinase (ILK) in pancreatic carcinoma.Methods ILK protein was detected by immunohistochemistry and Western blotting in 60 cases of pancreatic carcinoma and 32 cases of normal pancreatic tissue,and the relationship with the clinicopathological characteristics were analyzed.Results Immunohistochemistry showed ILK was expressed in cytoplasm and membrane of pancreatic carcinoma cells and the positive rate was 65% (39/60),which was significantly higher than 18.75% (6/32) of normal pancreatic tissue(P <0.05 ).Western blotting showed the expression of ILK in pancreatic carcinoma tissue was 303933±195116,which was significantly higher than 144613±30074 of normal pancreatic tissue(P<0.05 ).In pancreatic carcinoma,the expression of ILK was correlated with clinical stage and lymph metastasis(P<0.05 ),but not correlated with tumor cell differentiation(P>0.05 ).Conclusions ILK protein was highly expressed in pancreatic carcinoma tissue and it was correlated with the degree of malignancy.
10.Comparison on ingredients between cultured cell and cultivated Saffron pistils.
Rui-qiang SUN ; Zhi-gang GUO ; Rui-zhi LIU ; Su-qin SUN
China Journal of Chinese Materia Medica 2004;29(9):850-853
OBJECTIVETo compare the differences of active ingredients between tissue cultured cells and cultivated saffron pistils.
METHODThe experiment was carried out by the Fourier transform infrared spectroscopy (FTIR) spectra and high performance liquid chromatography (HPLC).
RESULTThe data indicated that the species and contents active ingredients in saffron pistils from different places were different. The species of active ingredients in tissue cultured cells are less than those in cultivated saffron pistils. However, the quantity of crocin A, which showed good anticancer effect, is 2-3 times more than that in cultivated saffron pistils.
CONCLUSIONThe active ingredients of the tissue cultured cells are similar to those of saffron pistils, but their contents are different. Therefore, the tissue cultured cells can only be the part-substitutes of cultivated saffron pistils.
Carotenoids ; analysis ; Cells, Cultured ; Chromatography, High Pressure Liquid ; Crocus ; chemistry ; cytology ; Ecosystem ; Flowers ; chemistry ; cytology ; India ; Plants, Medicinal ; chemistry ; cytology ; Spain ; Species Specificity ; Spectroscopy, Fourier Transform Infrared