2.Temporal Trend and Prediction of Mortality of Life Lost due to Esophageal Cancer in Residents in Tieling
Liang ZHANG ; Wen LU ; Xia ZHAO
Chinese Journal of Health Statistics 2017;34(2):247-249
Objective To explore the trend of mortality and years of life lost due to Esophageal Cancer in residents in Tieling,so as to provide the basis data on preventing Esophageal cancer in Tieling.Methods The data of residents in Tieling dying of Esophageal cancer from 2007 to 2015 was collected and cleared up to calculate the evaluation indexes including the mortality rate,the average percentage change of mortality rate.GM(1,1) model was used to predict the future mortality.Results From 2007 to 2015,the Average Esophageal cancer Mortality Rate of in residents in Tieling was 5.26 per 100000 persons,and especially 1.95% raised a year.The Mortality Rate would increase from 2016 to 2019.Conclusion Tieling Esophageal Cancer mortality rate is on the rise,especially for elder men more than 60.So that the proper prevention measures should be car ried and strengthened.
5.Study on the mechanism of polypeptide extract from scorpion venom on inhibition of angiogenesis of H 22 hepatoma.
Wen-Wen SUI ; Wei-Dong ZHANG ; Li-Cun WU ; Yue-Ying ZHANG ; Zhao-Peng WANG ; Zhao-Xia WANG ; Qing JIA
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(5):581-586
OBJECTIVETo explore the mechanism of polypeptide extract from scorpion venom (PESV) on inhibiting angiogenesis.
METHODSThe H22 hepatoma tumor model was established by subcutaneously implanting H22 hepatoma cells into mice. The tumor-bearing mice were randomly divided into 4 groups, i.e., the control group, the high dose PESV group, the low dose PESV group, and the 5-fluorouracil (5-Fu) group, 10 mice in each group. The intervention was lasted for 14 days. The growth curve of the tumor volume was drawn and the inhibition rate calculated. Pathological changes of the tumors were observed by HE staining. The microvessel density (MVD) was detected using SP method. The protein expression levels of phosphatidylinositol 3-kinase (P13K), phosphoprotein kinase B (P-Akt), hypoxia-inducible factor-1 alpha (HIF-1 )alpha, and vascular endothelial growth factor-A (VEGF-A) were detected by immunohistochemical assay and Western blot.
RESULTSThe tumor inhibitory rate was 64.8%, 43.7%, and 32.4% in the 5-Fu group, the high dose PESV group, and the low dose PESV group. Compared with the control group, the protein expression of PI3K, P-Akt, HIF-1alpha, and VEGF-A were obviously inhibited by PESV and 5-Fu (P <0. 05,P <0. 01). The MVD also decreased in the high and low dose PESV groups (P < 0.05).
CONCLUSIONSPESV could inhibit the angiogenesis of H22 hepatoma. The mechanisms might be associated with suppressing the expression of PI3K, P-Akt, HIF-1 alpha, and VEGF-A.
Angiogenesis Inhibitors ; pharmacology ; Animals ; Cell Line, Tumor ; Fluorouracil ; pharmacology ; Hypoxia-Inducible Factor 1, alpha Subunit ; metabolism ; Liver Neoplasms ; Male ; Mice ; Peptides ; pharmacology ; Phosphatidylinositol 3-Kinases ; metabolism ; Proto-Oncogene Proteins c-akt ; metabolism ; Scorpion Venoms ; pharmacology ; Vascular Endothelial Growth Factor A
6.Over-expressions of macrophage migration inhibitor factor and cyclin D1 correlates with clinical pathologic characteristics of pancreatic carcinoma and it significance
Jie ZHAO ; Jingtang XIA ; Wen LI ; Longjuan ZHANG ; Hua WANG ; Zhaofeng WU ; Yuan TAN ; Cheng XU
Journal of International Oncology 2009;36(7):550-553
Objective To evaluate the expression of macrophage migration inhibitor factor (MiF) and cyclinD1 in pancreatic carcinoma and their relationships with clinical pathology characteristics. Methods The expression of MIF and eyclinD1 in 89 carcinoma and 5 normal pancreatic tissues was detected with immunohis-tochemistry methods, and the relationships among MIF and cyclinD1 expression and clinicopathological factors were studied. Results The overexpression of MIF and cyclinD1 was found in 88.8%, and 50. 6% of pancre-atic carcinoma tissues respectively. The overexpression of MIF had a significant correlation with Ⅰ,Ⅱ,Ⅲ,Ⅳ tumor stage (69. 2%, 94. 7%, 96. 4%, 100%, P <0.05), while the positive expression rate of cyclinD1 only had a significant correlation with tumor stages Ⅲ,Ⅳ (33. 3%, 68. 8%, P <0. 05). Both of the two proteins had a correlative tendency with pathological grade and lymph node metastasis. The different expression of MIF between pancreatic carcinoma with and without liver metastasis had no statistical significance, (100% ,85.9%, P >0. 05)while there was a statistically significant difference about cyclinD1 (66. 7% ,46. 5% ,P <0. 05). A significant positive correlation was also found between MIF and cyclinD1 (P < 0. 05). Conclusion The ex-pression of MIF and CyclinD1 was higher in pancreatic cancer tissues than in normal tissue, and they may be associated with the malignant stage, tumor differentiation, local lymph node and liver metastasis of this tumor.
7.Growth of Schwann cells in silk fibroin scaffolds with different pore sizes
Wei JIAO ; Xia ZHAO ; Yan LU ; Yang WANG ; Jianchuan WEN ; Zhengzhong SHAO
Chinese Journal of Tissue Engineering Research 2011;15(25):4607-4610
BACKGROUND: The growth behaviors of cells on the biomaterials scaffold may be affected by the topography, pore size, wettability, porosity and other factors.OBJECTIVE: This research is aimed to observe the growth and proliferation of Schwann cells in silk fibroin scaffolds with different pore sizes. METHODS: Two kinds of silk fibroin scaffolds with different pore sizes were prepared, including a large pore size scaffold (pore size 50-60 μm) and a small pore size scaffold (pore size 10-20 μm). Schwann cells (R3 [33-10ras3]) served as seed cells and incubated in 37 ℃, 5% CO2 incubation box. When cells filled up the culture bottle bottom and formed a dense monolayer, they were digested and the cell concentration adjusted, then Schwann cells were seeded onto the surface of the porous silk fibroin scaffolds with different pore sizes. After seven days of co-culture, the growth and proliferation of Schwann cells were observed under scanning electron microscope.RESULTS AND CONCLUSION: The growth of Schwann cells on the surface of silk fibroin scaffolds with different pore sizes was varied. On the surface of small pore size scaffold (10-20 μm), the cell density was low, while the phenotype of cells was bipolar, cells arranged in parallel or linked as the cell chains. On the surface of large pore size scaffold (50-60 μm), more cells could be seen, but most of the cells were in the shape of single sphere, cells clustered on the surface of the porous scaffold or aggregated as a bunch of grape at the bottom of pores. Only few cells were bipolar and lied on the ridge between the pores. The result showed that the pore size of porous silk fibroin scaffolds is an influential factor for the growth and adhesion of Schwann cells. Schwann cells are conducive to grow on the scaffolds with pore size larger than cell body diameter.
8.Application of intraoperative ultrasound in the surgical treatment of hemangioblastoma
Li-shu, WANG ; Wen, HE ; Hui-zhao, LIU ; Dong-ying, XIANG ; Hong-xia, ZHANG
Chinese Journal of Medical Ultrasound (Electronic Edition) 2008;5(2):255-260
Objective To investigate the value of intraoperative ultrasound in the resection of hemangioblastoma.Methods Intraoperative ultrasound was applied in 17 patients who underwent resection. The size,number,location ,depth,feeding arteries and draining veins of the tumors were clearly displayed.Results Intraoperative ultrasound could real-time locate the tumor with high accuracy. Totally there were 35 tumors in 17 patients, and intraoperative ultrasound found 32 of them.The diameter of thr smallest tumor was 7 mm. Intraoperative ultrasound could displayed clearly the feeding arteries and draining veins in bigger tumors. Conclusions Intraoperative ultrasound should be routinely used in the operation of hemangioblastoma for its high detection rate.
9.Pathogen distribution and susceptibility profile of fungal isolates from bloodstream infections during the period from 2013 through 2015
Ling WEI ; Wenying XIA ; Jue WANG ; Yi WEN ; Genyan LIU ; Wangsheng ZHAO ; Yaning MEI
Chinese Journal of Infection and Chemotherapy 2017;17(3):256-259
Objective To investigate the pathogen distribution and susceptibility profile of fungal isolates from bloodstream infections,and valuate the clinical utility of G test in diagnosis of fungal infections for the purpose to improve antifungal therapy.Methods A retrospective analysis was carried out to analyze the fungal pathogens isolated from bloodstream infections in the First Affiliated Hospital of Nanjing Medical University during the period from January 2013 through December 2015 and their antimicrobial susceptibility.Results A total of 114 fungal strains were isolated from bloodstream infections during the 3-year period,most of which were Candida (99/114,86.8%),especially Candida albicans (30.7%).About 41.2% (47/114) of the fungal strains were isolated from Department of Thoracic Surgery (10,5 and 4 strains in 2013,2014 and 2015),Hematology (11 strains in 2014),and ICU (7 strains in 2014).Antimicrobial susceptibility testing showed that all the fungal strains (100%) were susceptible to amphotericin B,but 83.5% susceptible to itraconazole (the lowest).G test was positive before the result of blood culture in 13 of the 54 patients who received G test.Conclusions Candida was the most common fungus in fungal bloodstream infection.Amphotericin B is the most active antifungal agent in vitro.Blood culture combined with serological test can provide clinicians an earlier and reliable diagnosis.
10.In vitro chondrogenic phenotype differentiation of bone marrow-derived mesenchymal stem cells.
Yufu, ZHANG ; Changyong, WANG ; Wen, LIAO ; Zhanghua, LI ; Ximin, GUO ; Qiang, ZHAO ; Cuimi, DUAN ; Renyun, XIA
Journal of Huazhong University of Science and Technology (Medical Sciences) 2004;24(3):275-8
In order to study the chondrogenic phenotype differentiation of adult sheep bone marrow-derived mesenchymal stem cells (MSCs) in a defined medium as potential seed cells for cartilage tissue engineering. MSCs were isolated by density centrifugation with Percoll solution from bone marrow aspirated from sheep iliac crest. The third passage of MSCs were induced with H-DMEM containing TGF-beta3, IGF-I, Dexamethasone and VitC. The shape and ultrastructure of cells were observed, toluidine blue stain for GAG and immunohistochemistry for type II collagen were applied for chondrogenic phenotype identification. After 14 days of induction, MSCs changed from a spindle-like appearance to a polynal shape, a large amount of endoplasmic reticulum, Golgi complex and mitochondria were observed, and the differentiation of MSCs chondrogenic phenotype was verified by positive staining of toluidine blue and immunohistochemistry. MSCs derived from bone marrow can differentiate to chondrogenic phenotype when induced in vitro and can be used as optimal seed cells for cartilage tissue engineering.
Bone Marrow Cells/*cytology
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Cell Differentiation
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Cell Separation
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Cells, Cultured
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Chondrocytes/*cytology
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*Chondrogenesis
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Mesenchymal Stem Cells/*cytology
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Phenotype
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Sheep
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Tissue Engineering