1.Formation mechanisms, regulating factors and clinical significance of vasculogenic mimicry
Jie LI ; Xiaojie MA ; Bangxian TAN
Journal of International Oncology 2010;37(8):576-578
Vasculogenic mimicry (VM) can promote tumor growth, invasion, and metastasis. The formation of VM is regulated by various proteins including epithelial cell kinase, phosphoinositide-3 kinase, and hypoxia-inducible factor 1. Local microenvironment also plays an important role in regulating VM formation.
2.Progress in Vaccine Development of Hepatitis C Virus
Wen-Jie TAN ; Ke ZHANG ; Li RUAN ;
China Biotechnology 2006;0(10):-
Hepatitis C virus (HCV) accounts for the majority of cases of transfusion acquired hepatitis and may cause chronic hepatitis, cirrhosis and hepatocellular carcinoma. Currently, there is no vaccine against HCV and treatment is expensive and not always effective.The adaptive host immune response in viral clearance of HCV infection was described and the recent progress in vaccine development of HCV, focusing on the fields of DNA vaccine candidates, recombinant viral vectored vaccine candidates and combined (prime-boost) vaccine candidates were summarized. Some challenges and limitations of developing a HCV vaccine were also analysed. In summary, a promising approach of developing an experimental HCV vaccine to induce extremely potent and broad T-cell responses based on prime-boost strategy was presented.
3.Prognostic and survival analysis of primary liver cancer after hepatectomy
Xiaojie MA ; Jie LI ; Bangxian TAN
Cancer Research and Clinic 2013;25(9):588-590
Objective To explore the factors related to the prognosis and survival duration of primary liver cancer patients after hepatectomy.Methods The data of primary liver cancer patientswho were treated by surgical resection were analyzed retrospectively.Kaplain-Meier method was used to evaluate survival rates.Log-rank test and Cox regression analysis were used to screen out related clinical phathology factors.Results The median survival time was eighteen months.Univarivate analysis showed that liver function Child-Pugh classification,cirrhosis,tumor size,HBV infection,AFP,portal vein tumor thrombus significantly correlated with survival rates (P < 0.05).Multivariate analysis showed that liver function Child-Pugh classification,tumor size,AFP and portal vein tumor thrombus were the independent prognostic factors of primary liver cancer (P < 0.05).Conclusion Many factors are related to the prognosis of primary liver cancer after operation.Liver function Child-Pugh classification,tumor size,AFP and portal vein tumor thrombus affect prognostic independently.
4.Thoracic sympathectomy under video mediastinoscopy for palmar hyperhidrosis: Report of 55 cases
Jie YANG ; Jiaju TAN ; Wenjun LI
Chinese Journal of Minimally Invasive Surgery 2001;0(01):-
Objective To explore the feasibility of thoracic sympathectomy under video mediastinoscopy (VM) for palmar hyperhidrosis. Methods Operations on 55 patients with palmar hyperhidrosis were performed under general anesthesia with double lumen endotracheal tube placement. The patients were maintained in the 30?~45? semi-sitting position, with abduction of both arms to 90?. The VM entered the thoracic cavity via the third intercostal space on the anterior axillary line. The T 2~T 4 sympathetic ganglions were resected by electrocautery. Results Hyperhidrosis disappeared postoperatively in all the cases. The temperature of patients' both hands increased by 1.5~3 ℃,with their both hands becoming dry and warm. The operation time was 20~40 min (mean, 30 min) and the hospital stay was 3~7 d (mean, 4 d). No severe complications occurred. Mild subcutaneous emphysema along with pneumothorax was found in 3 cases and compensatory hyperhidrosis in the trunk happened in 5 cases. Conclusions Thoracic sympathectomy under VM is less invasive and simpler than that under video-assisted thoracoscopic surgery (VATS) in the treatment of palmar hyperhidrosis, being a feasible alternative.
5.Early screening of pancreatic cancer by combination of EUS with tumor marker detection
Shuyi ZHANG ; Wen LI ; Jie DU ; Ximo WANG ; Tan JIANG
Chinese Journal of Hepatobiliary Surgery 2010;16(3):170-172
Objective To determine the clinical value of EUS in combination with detection of CA19-9 and CA242 for early diagnosis of pancreatic cancer.Methods General features of high-risk group were determed by EUS and the plasma levels of CA19-9 and CA242 measured by ELISA.Results The serum level of CA19-9 was abnormal in 9.80% (10/102) and that of CA242 in 12.75% (13/102) of the patients.They were both abnormal in 7 cases.Of the 7 cases, 3 were found to suffer from pancreatic cancer by EUS, 1 had the tumor that had been clinically confirmed, 1 had posterior peritoneal tumor and 2 were normal.Among 102 cases detected by EUS, 2 showed low echo in pan-creatic head, 2 semi-cyst, 3 pancreatic cancer and proved by pathology.Accurate diagnotic rate, sensi-tivity and specificity were 90.20% (92/102), 50% (4/8) and 93.62% (88/94), respectively, for serum CA19-9.For the serum CA242, the 3 parameters were 87.25% (89/102), 50% (4/8) and 90.43% (85/94), respectively.For combination of both methods, they were 98.04% (100/102), 100%(8/8) and 97.87%(92/94), respectively.Accurate diagnostic rate of the latter was significantly higher than that of the former 2(P<0.05).Concision Combination of EUS with detection of serum CA19-9 and CA242 is of great vlaue for early screening of pancreatic cancer.
6.Effect of Nano-?-Linolenic Acid on Expression of Cathepsin B in Mice with Viral Myocarditis
shi-kai, TAN ; yun-hua, YANG ; shuang-jie, LI
Journal of Applied Clinical Pediatrics 2003;0(10):-
Objective To investigate the effect of nano-?-linolenic acid on the expression of cathepsin B(CB) in mice with viral myocarditis(VM).Methods Eighty male Balb/c mice were randomly divided into 4 groups:control group,myocarditis group,low-dose intervention group and high-dose intervention group,each group had 20 mice.Mice in control group were inoculated introperitoneally with eagle′s solution,every mouse in the last 3 groups was treated with 0.1 mL Coxsackie B3 virus(CVB3) intraperitoneally.Then,mice in low-dose intervention group and high-dose intervention group were treated with 60 mg?kg-1and 180 mg?kg-1 nano-?-linolenic acid solution for 7 days,respectively.Mice in control group and myocarditis group were treated with 9 g?L-1 saline for 7 days.All mice were killed on the 15th day,and the specimens of hearts and serum were conserved.Myocardial histopathology was determined with hematoxylin and eosin stain.The expression levels of myocardial CB mRNA were detected by reverse transcription polymerase chain reaction.Serum CB concentration was examined by enzyme-linked immunosorbent assay.Results The mortality rate was 0,45%,30% and 20% in control group,myocarditis group,low-dose intervention group and high-dose intervention group,respectively;the mortality rate was significantly lower in high-dose intervention group compared with myocarditis group(P0.05).The expression level of CB mRNA and serum CB concentration were markedly higher in myocarditis group than those in control group(Pa
7.Participation of Clinical Pharmacists in the Treatment of One Case of Renal Abscess with Iron Deficiency Anemia
Jie TAN ; Gen LI ; Dan ZHANG ; Mingyong YUAN
China Pharmacist 2017;20(7):1257-1259
Objective: To make out the optimal drug treatment regimen through the participation of clinical pharmacists in the treatment of one case of child with renal abscess complicated with iron deficiency anemia.Methods: Clinical pharmacists participated in the design of treatment program for the child, including the choices of drugs, dosage and route, and the treatment of adverse reactions, in order to make out the individualized medication.Results: By selecting the sensitive antibiotics, the renal abscess caused by Escherichia coli was cured successfully.Conclusion: Clinical pharmacists participating in clinical consultation can further optimize the treatment plan, and play an active role in the treatment of infected patients.
8.Effect of electroacupuncture at Neiguan (PC 6) and Baihui (GV 20) on CHOP and caspase-12 gene expressions in rats after ischemia-reperfusion injury
Wenhui LI ; Jie YU ; Yaping LIN ; Xing TAN ; Yang SONG
Journal of Acupuncture and Tuina Science 2017;15(1):8-13
Objective:To investigate the effects of electroacupuncture (EA) at Neiguan (PC 6) and Baihui (GV 20) by observing the changes of CCAAT/enhancer-binding protein(C/EBP) homologous protein (CHOP) and caspase-12 gene expressions in rats after cerebral ischemia-reperfusion injury (IRI), and explore whether the apoptosis pathway of endoplasmic reticulum stress (ERS) is involved in the protective mechanisms of EA.
Methods:Sixty rats were randomly assigned to five groups (12 in each group): a normal control group (group A), a sham-operation group (group B), an operation group (group C), an Edaravone group (group D) and an EA group (group E). The cerebral IRI rat model was induced by middle cerebral artery occlusion (MCAO) using intraluminal monofilament. 2,3,5-triphenyl tetrazolium chloride (TTC) staining was adopted in the measurement of cerebral infarction volume. Real-time polymerase chain reaction (RT-PCR) was used to determine the mRNA expressions of CHOP and caspase-12.
Results: Compared with group A and group B, the volume of cerebral infarction and mRNA expressions of CHOP and caspase-12 in group C, group D and group E were increased, with statistical significances (P<0.05 orP<0.01); compared with group C, the volume of cerebral infarction and mRNA expressions of CHOP and caspase-12 in group D and group E were decreased significantly (P<0.05 orP<0.01); there were no significant differences between group D and group E in comparing the above items (P>0.05).
Conclusion:EA at Neiguan (PC 6) and Baihui (GV 20) can effectively suppress the volume of cerebral infarction. Furthermore, the underlying mechanism of EA at Neiguan (PC 6) and Baihui (GV 20) is possibly related to the down-regulation of CHOP and caspase-12 mRNA expressions, so as to decrease cell apoptosis.
9.Research Progress in Clinical Application of Deproteinized Calf Blood
Xuefeng CAI ; Yi TAN ; Ying ZHAO ; Jie LI
China Pharmacist 2016;19(2):338-341
Deproteinized calf blood injection is composed of small protein-free molecules extracted from fresh calf blood. The pre-vious studies showed that it can improve metabolic balance by increasing glucose and oxygen uptake to enhance energy metabolism. In recent years, due to the expanding clinical applications of deproteinized calf blood injection, new observation results and ideas contin-ued to emerge. However, the reports of adverse reactions and excessive applications were also gradually increased. In order to provide reference for the promotion of reasonable clinical application, the paper reviewed the latest development in the studies on the clinical application of deproteinized calf blood injection.
10.Reversion of multidrug resistance of hepatoma cell line SMMC-7721/ADM by adriamycin-loaded immuno-nanoparticles
Heping KAN ; Yongfa TAN ; Yixiong LIN ; Chunfang LI ; Jie ZHOU
Chinese Journal of Digestive Surgery 2008;7(5):363-365
Objective To explore the effects of adriamycin-loaded immuno-nanoparticles on multidrug resistance (MDR) of hepatoma cell line SMMC-7721/ADM. Methods The cytotoxicity of the adriamycin-loaded immuno-nanoparticles on the bepatoma cell line SMMC-7721/ADM in vitro and the tumor cell-binding ability of adriamycin-loaded immuno-nanoparticles were detected. Results The effect of the cytotoxicity of adriamycin-loaded immuno-nanoparticles on the hepatoma cell line SMMC-7721/ADM was significantly better than that of adriamycin-loaded nanoparticles. Adriamycin-loaded immuno-nanoparticles had the specific binding ability with the hepatoma cell line SMMC-7721/ADM. Conclusions Adriamycin-loaded immuno-nanoparticles can overcome the MDR of the tumor in vitro. The mechanism may be that immuno-nanoparticles could adhere to the tumor cell membrane, and the release of the loaded adriamycin creates a high local concentration in the extracellular medium. The increased concentration gradient improves the diffusion of adriamycin from the extracellular medium to the intracellular medium.