2.Resistance to Antibiotics Against Staphylococcus aureus Isolated from Children and Adults in Hangzhou
Fuyan MA ; Xiaoping WU ; Chunzhen HUA
Chinese Journal of Nosocomiology 2006;0(03):-
256?g/ml.Oxacillin-resistance rate in adults was significantly higher than that in children(?2=54.15,P
3.Apoptosis or necrosis, should which be expected for tumor cells?.
Ke-Fu WU ; Xiao-Tong MA ; Yu-Hua SONG
Journal of Experimental Hematology 2005;13(6):921-923
Evidence has indicated that low doses of anti-tumor regimens can induce cell apoptosis in vitro, although different regimens induce apoptosis by different mechanism and pathway. In recent years, new tumor treatment strategy has been mainly focused on inducing tumor cell apoptosis. The present review discusses the advantages and disadvantages of inducing tumor cell apoptosis. The benefit of inducing apoptosis is not to cause inflammatory reaction, but as its disadvantage, it inhibits immune responses, and the phagocytosis of apopotic bodies may result in horizontal transfer of genes (including oncogenes and other oncogenic materials), which can be one of the causes of tumor relapse. This paper proposes that the tumor treatment strategy should be turn into promoting tumor cell necrosis and inducing anti-tumor immune responses.
Antineoplastic Agents
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therapeutic use
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Apoptosis
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drug effects
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Humans
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Necrosis
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chemically induced
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Neoplasms
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drug therapy
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immunology
;
pathology
4.Expression and clinical significance of Her-2/neu and Topo Ⅱ α protein in gastric cancer
Hua WU ; Zhao MA ; Wenping LIU ; Wenjuan LI
Cancer Research and Clinic 2011;23(1):65-67
Protocarcinogenic gene Her-2/neu was closely related to the development of gastric cancer. Herceptin is an antibody according to Her-2/neu and is used for treating breast cancer. Topo Ⅱ α is the important Nuclear enzymes needed by DNA duplicate, and is closely related to the proliferation of malignant tumors, so it is the important target enzymes of cancer chemotherapy. Her-2/neu and Topo Ⅱ α are located in the same chromosomes, there are correlation between the two genes' proliferation or loss. We reviewed the expression of Her-2/neu and Topo Ⅱ α in the stomach and the new progress of the correlation between the two genes home and abroad in this paper, which provides new methods for the prevention and treatment of gastric cancer.
6.Isolation,cultivation and differential proteomic analysis of chondrocytes from TMJ condylar cartilage of the mechanical stress stimulated rats
Huang LI ; Tuojiang WU ; Xiangyu ZHANG ; Qiaoling MA ; Zichun HUA
Journal of Practical Stomatology 2014;(5):593-597
Objective:To study the biological characteristics of condylar chondrocytes isolated from mechanical stress stimulated TMJ condylar cartilage of rats.Methods:The rat models of mechanical stress stimulated condylar cartilage were made by class III orthope-dic force for 14 days.The cartilage from control and experimental rats were observed in gross view.The cell harvest rate and viability were examined,proteomic analysis was performed.Results:After stress stimulation the thickness,the elasticity of condylar cartilage and number of chondrocytes were significantly reduced.The weight of mandibular cartilage was decreased(P<0.01).The harvest rate and the viability rate of the cells were decreased(P<0.01).The chondrocytes in the experimental group appeared to be elongated. Proteomic analysis showed that stress-related proteins,signal transduction proteins were up-regulated;cytoskeleton proteins,cell prolif-erative proteins were down-regulated.Conclusion:Mechanical stress stimulation of condylar cartilage may result in biological activity and protein changes of the condylar cartilage chondrocytes.
7.Predictive value of lipoprotein-associated phospholipase A2 on risk of cerebral infarction occurrence after transient ischemic attack
Xianghua CHEN ; Yingwei WU ; Haifeng MA ; Xueli GENG ; Zhenxiang HUA
International Journal of Laboratory Medicine 2017;38(4):465-467
Objective To investigate the predictive value of plasma lipoprotein associated phospholipase A 2 (Lp-PLA2 ) in cere-bral infarction(CI) after transient cerebral ischemia attack (TIA).Methods Plasma Lp-PLA2 level was detected in 112 TIA pa-tients ,and the incidence rate of CI was observed on 7 ,30 ,90 d after TIA.Then the grouping was performed according to the Lp-PLA2 level ,and the predictive value of Lp-PLA2 in the risk of CI occurrence after TIA was evaluated.Results Among 112 patients with TIA ,27 cases (24.1% ) developed CI within 90 d;there were 17 cases(63.0% ) of CI after TIA in the Lp-PLA2 >207 μg/L group ,which were significantly higher than that in the 175-207 μg/L group and <175 μg/L group (P<0.05);moreover the CI occurrence in TIA patients was mainly concentrated within 7 d after onset ;the patients of Lp-PLA2 ≥175μg/L were mainly distrib-uted in the moderate and high risk groups of ABCD2 score system ;in ROC curve of Lp-PLA2 for predicting CI after TIA ,with Lp-PLA2 ≥194 μg/L as the diagnostic critical point ,the sensitivity was 0.730 and specificity was 0.680.Conclusion Lp-PLA2 may be an effective risk predictive indicator of CI occurrence after TIA ,and can improve the adverse outcome of TIA patients.
8.Postoperative complication and the risk factors of radical resection for colorectal cancer
Jun MA ; Hua WANG ; Xuesong WU ; Yongqing DUAN ; Xudong MA ; Yanlong YANG
Clinical Medicine of China 2016;32(9):815-819
Objective To investigate the associated risk factors of postoperative complications after rad?ical resecting of colorectal cancer. Methods The clinical data of 237 patients with colorectal cancer performed radical resection in the Second Affiliated Hospital of Kunming Medical University from January 2011 to Decem?ber 2014 were analyzed retrospectively. The incidence of postoperative complications was analyzed,and the relat?ed factors were analyzed by single factor and multi factor correlation analysis. Results The postoperative com?plications occurred in 114 cases of 237 patients( 48. 1%) . Univariate analysis showed that the age more than 70 years old,preoperative comorbidity,intraoperative blood loss,surgeon’ s experience,combined evisceration or en?larged evisceration were related to postoperative complications ( P = 0. 033, 0. 014, 0. 045, 0. 028, 0. 040 ) . Compared with the patients without complications,the postoperative anal exhaust time,length of stay was longer of the patients with complications((3. 7±1. 6) d vs. (3. 2±1. 4) d,P=0. 035;(21. 3±6. 5) d vs. (12. 1 ±2. 4) d,P=0. 001). Logistic regression analysis showed that depth of tumor invasion(P=0. 001),preoperative comorbidity including NRS>3 points (χ2 =8. 903, P=0. 003 ) , anemia and hypoproteinemia (χ2 =3. 494, P=0. 048) ,hypertension complicated with type 2 diabetes mellitus(χ2=5. 418,P=0. 026) ,not complete intesti?nal obstruction(χ2=8. 376,P=0. 003),mild and severe ventilation dysfunction(χ2=6. 331,P=0. 011) and WBC<3. 9×109(χ2=4. 256,P=0. 041) were closely related to the occurrence of complications. The rate of post?operative complication of laparoscopic group and open group had no significant difference( 44. 4%( 64/144) vs. 47. 3%(44/93),P>0. 05) . Conclusion Age>70 years old,preoperative comorbidity,intraoperative blood loss,surgeon`s experience,combined evisceration or enlarged evisceration are main risk factors for patients per?formed colorectal cancer radical resection,but laparoscopy?assisted radical resection is not the risk factor.
9.Leukemia stem cells and their microenvironment--editorial.
Ke-Fu WU ; Xiao-Tong MA ; Guo-Guang ZHENG ; Yu-Hua SONG
Journal of Experimental Hematology 2007;15(6):1139-1141
As pioneer of tumor stem cell research, leukemia stem cell research has not only important theoretical significance, but also clinical application potential. The survival and development of stem cells are directly impacted by their microenvironment. The research on leukemia stem cells and their microenvironment are now becoming a hot topic. The author presumes that stem cells are a population with heterogenecity and hierarchy; any single cell from the population is difficult to form a clone; the interaction between the leukemia stem cell and its microenvironment can be described by the concept of leukemia stem cell niche. In this article, the leukemia cell population with heterogenecity and hierarchy as well as leukemia stem cell niche were summarized and discussed.
Cell Line, Tumor
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Humans
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Leukemia
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genetics
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pathology
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Neoplastic Stem Cells
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metabolism
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pathology
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Stem Cell Niche
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cytology
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Stromal Cells
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cytology
;
immunology
10.Morphologic study of tonsillar B-cell lymphomas.
Miao-Xia HE ; Jian-Ming ZHENG ; Li-Li WU ; Da-Lie MA ; Ming-Hua ZHU
Chinese Journal of Pathology 2007;36(2):127-128
Adult
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Aged
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Antigens, CD20
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metabolism
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Diagnosis, Differential
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Female
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Gene Rearrangement, B-Lymphocyte, Heavy Chain
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Humans
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Immunohistochemistry
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Leukocyte Common Antigens
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metabolism
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Lymphoma, B-Cell
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genetics
;
metabolism
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pathology
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surgery
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Lymphoma, Extranodal NK-T-Cell
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pathology
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Lymphoma, Large B-Cell, Diffuse
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genetics
;
metabolism
;
pathology
;
surgery
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Male
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Middle Aged
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Tonsillar Neoplasms
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genetics
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metabolism
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pathology
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surgery
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Tonsillectomy
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Tonsillitis
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pathology
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Young Adult