1.Trans Jugular Intrahepatic Portosystemic Shunt in Treatment of Cirrhotic Patients with Esophageal and Gastric Variceal Bleeding.
Liqiang CHEN ; Peng YAO ; Jinhua XIONG
Journal of Medical Research 2006;0(03):-
Objective To discuss the efficiency and safety of transjugular intrahepatic portosystemic shunt(TIPSS) in treatment of cirrhotic patients with gastroesophageal variceal bleeding.Methods52 patients who had gastroesophageal variceal bleeding were treated with TIPSS,with 11 patients of them being active bleeding,23 patients being moderate to massive ascites.Results50 patients were treated successfully with the successful rate of 96.2%.The pressure of potal dropped from 3.87?0.50kPa to 2.45?0.40kPa(P
2.Efficacy comparison between saccharomyces boulardii sachets and tetragenous viable bifidobacterium tablets in the treatment of rotaviral gastroenteritis
Liqiang WU ; Jianping CHEN ; Nianhai HE
Chongqing Medicine 2015;(31):4349-4351,4354
Objective To compare the effect between Saccharomyces boulardii sachets and tetragenous viable bifidobacterium tablets in the treatment of rotaviral gastroenteritis of children .Methods A total of 191 patients (below 2 months to 8 years old) with rotaviral gastroenteritis admitted to this hospital from January 2012 to May 2014 were divided randomly into control groups (smectite ,conventional treatment ,number=62) ,tetragenous viable bifidobacterium tablets group (conventional treatment combined with tetragenous viable bifidobacterium tablets ,number= 64) ,saccharomyces boulardii group (conventional treatment combined with saccharomyces boulardii ,number=65) .Therapeutic effects were compared between 3 groups after 3 days and 5 days of treat‐ment .Results The obvious curative rate ,effective ratio and total rate in the groups of saccharomyces boulardii and tetragenous via‐ble bifidobacterium tablets were higher than those in the control group(P<0 .05) .However ,no significant difference was found in the two cases among the groups (P>0 .05) .There was significant difference in 3 days and 5 days therapeutic effect among 3 groups (P<0 .05) .The duration of diarrhea in the group of Saccharomyces boulardii was lower than this in the group of tetragenous viable bifidobacterium tablets (P<0 .05) .Conclusion The therapeutic effect of Saccharomyces boulardii is similar to that of tetragenous viable bifidobacterium tablets in treatment of children with Rotaviral gastroenteritis .The duration of diarrhea in the group of Sac‐charomyces boulardii was lower than that of the group of tetragenous viable bifidobacterium tablets .
3.Prediction of miR-199a-3p targets gene and its bioinformatics analysis
Xiaojuan XIE ; Jingjing PAN ; Liqiang WEI ; Wei CHEN
Journal of Xi'an Jiaotong University(Medical Sciences) 2016;(2):244-249
Objective To provide theoretical guidance for further research on the role of miR-1 99a-3p in formation and development of bladder cancer.Methods Mature sequence of miR-1 99a-3p was analyzed;target genes and transcription factors of miRNA-1 99a-3p were predicted,and the target genes were analyzed for gene ontology (GO)enrichment and Kyoto Encyclopedia of Genes and Genome (KEGG)pathway.Then TF-miRNA-mRNA network diagram was constructed.Results Sequences of miR-1 99a-3p were highly conserved in various species.In GO analysis,the target genes of miR-1 99a-3p were enriched in many biological processes,such as regulation of cellular process,regulation of macromolecule metabolic process,and regulation of biological process (P <0.01 ).In KEGG pathway,the target genes were mainly located in bacterial invasion pathway of epithelial cells,ECM-receptor interaction pathway,PI3K-Akt signaling pathway,MAPK signaling pathway,small cell lung cancer pathway,and proteoglycans pathway in the cancer (P <0.05).According to the TF-miRNA-mRNA network diagram,the important genes that might be regulated by miR-1 99a-3p were MYC,SP1,mTOR,NFκB,and NFκB1.Conclusion miR-1 99a-3p may directly target mTOR and participate in the formation and development of bladder cancer through regulating PI3K-Akt-mTOR signaling pathway.
4.Values of serum VEGF, CEA, CA19-9 and SF for predicting the efficacy to chemotherapy in advanced gastric cancer
Jinhua GU ; Tao GU ; Lina ZHOU ; Liqiang WANG ; Ling CHEN
International Journal of Laboratory Medicine 2014;(18):2459-2461
Objective To investigate the values of serum vascular endothelial growth factor (VEGF) ,carcinoembryonic antigen (CEA) ,carbohydrate antigen 19-9 (CA19-9) and ferritin (SF) determination in assessing the efficacy of chemotherapy in patients with advanced gastric cancer .Methods Wedetermined the concentrations of serum VEGF ,CEA ,CA19-9 and SF for 85 patients with advanced gastric cancer ,before and after 1 cycles of chemotherapy and evaluated the the effect of chemotherapy after 2 cycle of chemotherapy .Results In effective group ,serum concentrations of VEGF ,CEA ,CA19-9 and SF significantly decreased after chem-otherapy cycle(P< 0 .05) ,serum VEGF and CEA concentrations significantly increased in progress group (P< 0 .05) ,serum VEGF ,CEA ,CA19-9 and SF concentrations in stable group and serum CA19-9 and SF concentrations in progress group did not change significantly(P> 0 .05) ,compared with those before chemotherapy cycle .Multiple regression analysis showed that serum CEA ,VEGF ,CA19-9 concentration changes correlated with chemotherapy efficiency ,while serum SF didn′t(t=1 .58 ,P=0 .119) . Conclusion Serum CEA ,VEGF ,CA19-9 concentration changes associated with gastric cancer chemotherapy efficiency ,which help predict the efficiency of chemotherapy .
5.Value of Serum VEGF,SCC-Ag and CYFRA2 1-1 for Predicting Eesponse to Chemotherapy in Advanced Lung Squamous Cell Carcinoma
Jinhua GU ; Ling CHEN ; Lina ZHOU ; Liqiang WANG ; Tao GU
Journal of Modern Laboratory Medicine 2014;(5):123-126
Objective To investigate the combined detection of serum vascular endothelial growth factor (VEGF),squamous cell carcinoma antigen (SCC-Ag)and cytokeratin 19 fragment (CYFRA21-1)value in assessing the efficacy of chemotherapy in patients with advanced squamous cell carcinoma of the lung.Methods 60 cases of lung squamous cell carcinoma patients in January 2011 between June 2013 to be admitted to hospital were treated with gemcitabine plus cisplatin or carboplatin chemotherapy.Detected the levels of serum VEGF,SCC-Ag and CYFRA21-1 expression in 60 cases before and after 1 cycle of chemotherapy in patients using ELISA and immunoradiometric assay,and evaluated the efficacy evaluation with reference to RECIST criteria after 2 cycle of chemotherapy.Results Effective group serum VEGF and CYFRA21-1 levels were 413± 114 pg/ml and 14.7±9.6 ng/ml;serum VEGF and CYFRA21-1 levels after one cycle of chemotherapy were 272±131 pg/ml and 10.8±7.1 ng/ml,which decreased after chemotherapy (P<0.01).Progress group serum VEGF and CYFRA21-1 levels were 472±207 pg/ml and 18.9±17.6 ng/ml;serum VEGF and CYFRA21-1 levels after one cycle of chemotherapy were 537±219 pg/ml and 21.5±20.2 ng/ml,which increased after chemotherapy (P<0.01).Stable group serum VEGF CYFRA21-1 levels and were 419±246 pg/ml and 17.0±12.9 ng/ml;serum VEGF and CYFRA21-1 levels after one cycle of chemotherapy were 421±252 pg/ml and 16.8±11.7 ng/ml,which had no changes before and after treatment (P>0.05). Serum SCC-Ag levels before and after each treatment group difference was not statistically significant (P>0.05).Multiple regression analysis showed that serum VEGF,CYFRA2 1-1 levels and the efficacy of lung squamous were related changed (t=5.86,P<0.001;t=2.26,P=0.027),and there was no significant correlation between SCC-Ag levels changes and the effect of chemotherapy (t=1.52,P=0.133).Conclusion Serum VEGF and CYFRA21-1 expression level changes associat-ed with squamous cell carcinoma of the lung chemotherapy effect,which can advance understanding of the effect of chemo-therapy,combined with advanced squamous cell carcinoma detection of serum VEGF and chemotherapy assessment CY-FRA2 1-1 has a certain reference value.
6.Protective and therapeutic effects of Shugan Lifei Recipe on rats with asthma under stress and the mechanisms
Yao TONG ; Ningxia ZHANG ; Huijuan CHEN ; Liqiang NI
Journal of Integrative Medicine 2005;3(5):391-6
OBJECTIVE: To explore the influence of psychological factor on asthma, the protective and therapeutic effects of Shugan Lifei Recipe on rats with asthma under stress and the mechanisms. METHODS: Allergy and stress-induced asthma models were established in rats by giving ovalbumin and restraining stress. Radioimmunoassay, enzyme linked immunosorbent assay, in situ hybridization and immunohistochemical method were used to detect plasma corticosterone, IL-4, IFN-gamma, expression of glucocorticoid receptor (GR) mRNA in hippocampus and adrenocorticotropic hormone corticoliberin (CRH) positive neuron in hypothalamus. Optical and electron microscopes were used to observe the morphological changes of pulmonary hilar and hippocampal tissues. RESULTS: Shugan Lifei Recipe (SGLFR) could reduce plasma corticosterone, decrease CRH positive neurons in paraventricular nucleus of hypothalamus, up-regulate the expression of GR mRNA in hippocampus and reduce the injury of hippocampal neuron. SGLFR had certain inhibitive effect on hyperfunction of hypothalamo-pituitary-adrenal cortex (HPA) axis in rats with asthma under stress and could also relieve the pathological changes of the pulmonary hilar tissue. The level of plasma IFN-gamma was increased while the level of plasma IL-4 was decreased in SGLFR-treated group. CONCLUSION: The mechanism of SGLFR in treating the rats with asthma under stress is probably to regulate the hyperfunction of HPA axis and the disorder of immuo-system.
7.Preparation of canine bone marrow stromal stem cell sheets and investigation on their osteoblastic differentiation
Lingxue BU ; Heng JING ; Liqiang CHEN ; Zhenhua GAO ; Ningyi LI
Chinese Journal of Tissue Engineering Research 2010;14(40):7593-7596
BACKGROUND:Conventional methods,including trypsin digestion and cells transfer using single call suspension,have many drawbacks,which limit the development of bone tissue engineering.OBJECTIVE:To culture bone marrow stromal stem calls,induce osteoblastic differentiation,and prepare cell sheets.METHODS:Canine bone marrow stromal calls were isolated by density gradient centrifugation technique,inoculated into DMEM medium,and induced to differentiate into osteoblasts.Complete call sheets were harvested by call sheet engineering based on the temperature change of temperature-responsive medium.RESULTS AND CONCLUSION:Immediately after inoculation,primary calls were scattered on the bottom of culture flask,presenting a transparent spherical body with a good refractive capacity.At 12 hours,calls exhibited a long shuttle shape,reached complete confluency,and grew in a whirlpool-like fashion.After osteoblastic induction,the majority of bone marrow stromal stem calls appeared tetragonal,polygonal,and squamose.At 21-28 days,round or oval-shaped calcified nodules formed.When the bone marrow stromal stem calls in the temperature-responsive culture dishes were cooled below the critical temperature 32℃,cells were gradually detached from the bottom of culture flask and formed complete bone marrow stromal stem call sheets.These findings indicate that density gradient cantrifugation technique can be used to successfully isolate and culture canine bone marrow stromal stem cells to differentiate into osteoblasts and call sheet engineering enables to harvest complete bone marrow stromal stem call sheets.
8.Culture and preparation of dog bone marrow mesenchymal stem cell sheet in vitro
Heng JING ; Shuai TAN ; Zhenhua GAO ; Liqiang CHEN ; Ningyi LI
Chinese Journal of Tissue Engineering Research 2010;14(10):1825-1828
BACKGROUND:There are some disadvantages in harvesting and transferring cells in the traditional tissue engineering technique,and it is difficult to form dense tissues,which significantly limits the development of tissue engineering.OBJECTIVE:To explore the culture and fabrication of dog bone marrow mesenchymal stem cell(BMSC)sheet in vitro.METHODS:Bone marrow was extracted from dogs following anesthesia.BMSCs were isolated with the method of density gradient centrifugation in vitro.BMSCs at passage 4 at a density of 1×10~9/L were incubated in the temperature-responsive culture dishes with a diameter of 3.5 cm,and cultured in an incubator at 37 ℃,5% CO_2 and saturated humidity.The temperature of the incubator was changed from to 37 V to 20 ℃ to prepare BMSCs cell sheet for 20 minutes.Cell morphological changes and cell sheet formation were observed under an inverted microscope.RESULTS AND CONCLUSION:Dog BMSCs following 24 hours of primary culture presented ellipse or polygonal shape.Most cells adhered at hour 72,and cell colonies were visible at day 7.Cells showed long spindle and completely confluence at day 12,with unclear boundary.BMSCs in the temperature-responsive culture dishes presented short spindle shape,and gradually separated from the dish bottom,forming entire cell sheet containing extracellular matrix at 20 V.These verified that dog BMSCs can be effectively obtained with method of density gradient centrifugation.Complete cell sheet layer can be fabricated with temperature-responsive culture dishes.
9.Preparation and releasing behavior of chitosan microspheres/nano-hydroxyapatite/PLGA scaffolds: Compared to nano-hydroxyapatite/PLGA scaffolds and chitosan microspheres
Yaoxiang XU ; Yali LI ; Liqiang CHEN ; Jiayou YU ; Jian SUN
Chinese Journal of Tissue Engineering Research 2010;14(3):452-456
BACKGROUND: How to make growth factor plays a role persistently and efficiently is a key in constructing bone tissue engineered bone. Currently, varied microspheres or scaffolds were used as release carriers, however, the delayed release effects needs elevating.OBJECTIVE: To prepare chitosan microosPheres/nano-hydroxyapatite/poly (lactic-co-glycolic acid) (CMs/nHA/PLGA) scaffolds, and to measure its characteristics of delayed release of bovine serum albumin (BSA).METHODS: CMs were prepared by an emulsifying cross linking method with BSA as a model protein. Using ice particulates as porogen, composite CMs/nHA/PLGA scaffolds were prepared by freeze-drying. The characteristic and morphology of the composite were observed by scanning electron microscope, later particle size analyzer, mercury porosimeter and universal testing machine, and the release behavior of BSA was investigated in vitro.RESULTS AND CONCLUSION: The CMs were spherical shape with a regular surface, with diameters of 20-40 μm. The encapsulation efficiency of the CMs was 86.5%, and the loading capacity was 0.8%. With the increase of initial BSA dosage, the loading capacity increased to 2.6%, while the encapsulation efficiency decreased to 74.1%. The CMs can be uniformly distributed in PLGA scaffolds to form CMs/nHA/PLGA scaffolds, which had 100-400 μm pore diameter and over 80% porosity, with 1.1-2.3 pMPa compressive strength, and 26.5% cumulative degradation at 10 weeks. The cumulative release of BSA from nHA/PLGA scaffolds was above 85% at 36 hours, which from CMs was 33.6% at 10 days, and that from CMs/nHA/PLGA scaffolds was 81.5% at 40 days. The results demonstrated that CMs/nHA/PLGA scaffolds have an excellent releasing efficiency for protein drugs with suitable compressive strength and degradation, which would be used as delivery system and tissue engineering scaffolds.
10.Research homocysteine levels before and after treatment of newly diagnosed diabetes,intensive insulin
Liqiang CHEN ; Linping PENG ; Xiuting LUO ; Wenjing YUE
Chongqing Medicine 2015;(8):1052-1053,1057
Objective Observation of 2 diabetic patients with insulin homocysteine(Hcy) levels before and after treatment ,to explore new diagnosis of diabetes patients with blood glucose control for the effect Hcy .Methods Extracted from 128 cases accord with standard of newly diagnosed type 2 diabetic patients ,randomly divided into control group and strengthen group ,64 cases each . Give control group oral sulfonylureas .To observe group use insulin intensive therapy .In the three months after treatment compared two groups before and after treatment of FBG ,HbA1c indicators related to change .Results All patients after treatment ,Hcy , FBG ,PBG ,HbA1c have decreased ,and Hcy in strengthen group decreased more obviously than in control group ,the difference was statistically significant level changes(P<0 .05) .Conclusion Insulin intensive therapy can be effective in the treatment of newly di‐agnosed type 2 diabetes .