1.The expression of SHH in gastric cancer and their clinical significance
Journal of Chongqing Medical University 1986;0(03):-
Objective:To investigate the expression of sonic hedgehog(SHH) in gastric cancer,analyze the relationship with clinic pathological features,and discuss the clinical significance.Methods:Immunohistochemistry SP method was used to detect the expression of SHH in 60 cases of gastric cancer,and the relationship between protein expression and clinic pathological features was analyzed.Results:The positive expression rates of SHH was 68.3%(41/60)in gastric cancer.The expression rates of SHH was correlated with depth of invasion,lymph node metastasis,and TNM stage(P
2.Application of intraoperative ultrasound and appropriate approach in local resection for the deeply-situated central small hepatocellular carcinoma
Chinese Journal of Current Advances in General Surgery 1999;0(03):-
Objective: To investigate the role of intraoperative ultrasound(IOUS) and appropriate approach in local resection for the central small hepatocellular carcinoma(sHCC) which is deeply situated within the parenchyma and adjacent to the hepatic veins. Methods: under IOUS guidance, local resection was carried out for 8 cirrhotic patients with central sHCC which was deeply located and adjacent to hepatic veins by approach of splitting or unroofing superficial hepatic parenchyma. Results: All tumors were precisely localized by IOUS and excised successfully. Except for injury to central hepatic vein in 1 case, no other injury occurred to the hepatic veins in the remaining 7 cases. There was no postoperative mortality, and the liver function recovered well in all cases postoperatively. Conclusion: Local resection by using IOUS and appropriate approach is applicable for the cirrhotic patients with deeply located central sHCC. IOUS plays an important role in avoidance of injuries to the hepatic veins.
3.Role of MAPK signal transduction in synoviocytes of rheumatoid arthritis
Xiaoyu CHEN ; Ming CHEN ; Jun LI
Chinese Pharmacological Bulletin 2003;0(12):-
The mitogen-actived protein kinase(MAPK)is one of important ways in eukaryote signal transmission network,and plays the key role in the gene expression regulation and the cytoplasm function activity.In the mammal organism,five kinds of different MAPK signal transduction passage.ERK1/2 signal transduction passage regulates cell growth and differentiation,JNK and p38 MAPK signal transduction passages play the vital role in the stress of inflammation and apoptosis etc.The activation of signal transduction passage is the typical characteristic of RA chronic synovitis,through this way to induct synoviocytes cytoplasm protein phosphorylation,then causes transcription factor and nucleoprotein c-Fos,c-Jun,AP-1 and NF-kappa B and so on phosphorylation,thus promotes cell proliferation and activation.It has the vital significance of the above-mentioned mechanism research to understand deeply and researche new medicine to RA.
4.Pharmaceutical Care for the Inpatients with Intracranial Infection after Craniotomy
Hualing WEI ; Ying CHEN ; Xiaoyu CHEN
China Pharmacy 2005;0(18):-
OBJECTIVE: To discuss therapy regimes and pharmaceutical care for the inpatient with intracranial infection after craniotomy. METHODS: Clinical cases were taken as example and therapy regimes was analyzed in order to put out full range and individualized pharmaceutical care for patients with intracranial infection after craniotomy. RESULTS: Reasonable medication was provided by implementing pharmaceutical care. CONCLUSION: It is necessary to deliver pharmacetical care to the inpatient with intracranial infection after craniotomy.
5.Comparison of gene expression profiles in atrophic and non-atrophic gastritis
Shengliang CHEN ; Shudong XIAO ; Xiaoyu CHEN
Chinese Journal of Digestion 1996;0(05):-
Objective Atrophic gastritis, as a pre-cancerous condition of gastric cancer, is developed from non-atrophic gastritis.The aims of this study was to compare the gene expression profiles between atrophic gastritis and non-atrophic gastritis using cDNA microarray and to explore the molecular mechanisms in the development of atrophic gastritis. Methods Endoscopy and biopsy were performed consecutively in 227 patients (143 male, 84 female, age range between 16-72 years, with average age 48.6 years). Diagnosis of non-atrophic gastritis and atrophic gastritis was made according to histological examination, and 120 patients were in non-atrophic group and 107 in atrophic group. The total RNA was extracted from the biopsy specimens of two groups with Trizol reagent. cDNA microarray consisting 8 464 human genes (HGEC-80s kit) was used, and labeled cDNA with fluorescence probes were hybridized to microarray, and then the comparison of gene expression profiles was made between atrophic and non-atrophic gastritis. Results It was identified that in gene expression profiles of atrophic gastritis there were 165 genes showing a greater than 2-fold increase and 460 genes showing a greater than 50% decrease as compared to non-atrophic gastritis. RT-PCR analysis revealed similar results as in DNA microarray. Conclusions There is different expression in many genes between the gastric mucosal cells of non-atrophic and atrophic gastritis mucosa. Many genes expression profiles are involved in atrophic gastritis that would be of help in further understanding the development of atrophic gastritis.
6.Relationship between Helicobacter pyloriinfection and gastric metaplasia in the mucosa of duodenal bulb
Xiaoyu CHEN ; Yao SHI ; Yanshen PENG
Chinese Journal of Digestion 2001;0(09):-
Objective To investigate the relationship between Helicobacter pylori(H. pylori)infection and gastric metaplasia in the duodenal bulb and to pursue whether they play critical roles in pathogenesis of duodenitis and ulcer.Methods Eighty-two archive paraffin blocks of duodenal biopsy were obtained. All sections were stained with H-E, AB/PAS and Giemsa stains for histology, gastric metaplasia and H. pyloriassessment. There were 10 patients with normal duodenum, 47 with duodenitis and 25 with ulcer confirmed by endoscopy. Results There was a discrepancy in diagosis of the normal duodenal bulb mucosa between endoscopy and histopathology. Mild to moderate infiltration of inflammatory cell without gastric metaplasia were detected in 60% of cases with the normal duodenal bulb mucosa judged by endoscopy. Gastric metaplasia in duodenal bulb was the major phenomena in the patients with duodenitis and ulcer (37/82, 45%). H. pyloriinfection in the duodenal bulb always appeared in areas of gastric metaplasia. H. pyloriwas identified in 28 out of 37 (76%) cases in the gastric metaplasia mucosa. The prevalence of gastric metaplasia in the duodenal bulb between the patients with ulcer (72%) and duodenitis (40%) was significantly different (P=0.0078). The frequency of H. pyloricolonization was higher in the patients with duodenal ulcer (89%) than the patients with duodenitis (63%), but did not reach statistical significance(P=0.062). H. pyloriinfection was also higher in the ulcer patients with active, healed or scar stage, being 9/10, 5/6 and 2/2, respectively. Conclusions There is a difference in the frequency of H. pyloricolonization in the gastric metaplasia mucosa in the patients with ulcer and duodenitis, which suggests that infection with H. pylorimay play an important role in ulcer recurrence.
7.Islet cells modified with PD-L1-GPI molecule inhibit attack of reactive T cells
Ming LIANG ; Xiaojun LUAN ; Xiaoyu CHEN
Chinese Journal of Pathophysiology 1989;0(05):-
AIM:To investigate the immune depressive effect on the reactive T cells and to explore the immunologic injury mechanism of beta cells of islet in type 1 diabetes mellitus(DM-1).METHODS:pAd5/PD-L1-GPI adenovirus vector with target gene was constructed and transfected into NIT cells which are known as a mouse insuloma cell line.The highly expressed membrane protein of PD-L1-GPI was confirmed by Western blotting.The peripheral blood non-adherence lymph leukocytes and target cells were cultured to detect lymph leukocyte proliferation and the T cell function.The level of IL-2,TNF-? and IFN-? were detected in the cell culture fluid.RESULTS:Compared with the control group,the NIT cells modified with PD-L1-GPI inhibited the sensitized lymph leukocyte proliferation effectively and down-regulated the level of some cytokine secretions such as IL-2,IFN-? and TNF-?(P
8.Clinical research of tiotropium bromide combined with seretide in patients with chronic obstructive pulmonary disease at stable period
Xiaoyu WU ; Liutao HE ; Huachun CHEN
Chinese Journal of Biochemical Pharmaceutics 2017;37(5):229-231
ObjectiveTo explore the Clinical effect of Tiotropium Bromide combined with seretide in patients with chronic obstructive pulmonary disease at stable period.Methods84 patients with stable COPD from March 2015 to February 2016 in our hospital outpatient respiratory department were randomly divided into control group and treatment group.The control group was treated with Seretide, the treatment group was treated withtiotropium bromide on the basis of control group.Compared the lung function, blood gas analysis, 6-minute walking distance, dyspnea score and quality of life were between the two groups after six months of treatment.ResultsFVC, FEV1and FEV1/ FVC (%) in the treatment group were significantly higher than those in the control group (P<0.05).The score of quality of life and dyspnea in the treatment group were significantly lower than those in the control group (P<0.05).The 6MWD in treatment group was significantly longer than that in control group (P<0.05).PaCO2 was significantly lower in the treatment group than that in the control group, but PaO2 was significantly higher than that in the control group after six months treated(P<0.05).ConclusionThe combination of tiotropium bromide and seretide in patients with chronic obstructive pulmonary disease (COPD) is effective in improving pulmonary function, improving life therapy, and reducing the symptoms of dyspnea.
9.The effects of plateletpheresis on blood conservation during cardiopulmonary bypass
Xiaoyu ZHOU ; Chengya WANG ; Yijiang CHEN
Chinese Journal of Blood Transfusion 1988;0(01):-
Objective To investigate the effects of plateletpheresis on blood conservation following cardiopulmonary bypass.Methods 20 patients undergoing open heart surgery were divided randomly into experiment and control groups.All patients underwent routine CPB.Plateletpheresis was performed in experiment group by using COBE SPECTRA.Other blood conservation approaches were similar in two groups.Results The number of platelets collected in experiment group exceeded 20% of total platelets of every patients.In the experiment group,less transfusion was need.The changes of Hb and Hct at every time point were similar in the two groups.Platelet counts,aggregation,and prothrombin time in the experiment group restored to preoperative levels significantly earlier than in the control group.The chest tube drainage at 2,4,8,and 16 h and the total drainage after operation were significantly lower in the experiment group than those in the control group.Conclusion By protecting platelets from destruction by extracorporeal circulation,plateletpheresis is beneficial to the recovery of haemostatic system.It is a useful blood conservation method.
10.Effects of Ligustrazine Injection on DNA Synthesis of Vascular Endothelial Cell
Lirong YANG ; Xiaoyu XU ; Gang CHEN
China Pharmacy 2001;0(12):-
OBJECTIVE:To study the effect of ligustrazine injection(LTZ)on DNA synthesis of vascular endothelial cell.METHODS:In vitro cultured cell line of human umbilical vein endothelial cells,ECV304,were adopted to measure the ef?fects of LTZ on DNA synthesis by 3 H-TdR incorporation.RESULTS:LTZ could inhibit DNA synthesis of ECV304in a dose-dependent manner.CONCLUSION:The mechanism of anti-angiogenesis of LTS might be associated with inhibiting DNA synthesis of vascular endothelial cell.