4.Relationship of statistics and data management in clinical trials.
Feng CHEN ; Hua-long SUN ; Tong SHEN ; Hao YU
Acta Pharmaceutica Sinica 2015;50(11):1420-1424
A perfect clinical trial must nave a solid study design, strict conduction, complete quality control, non-interference of statistical result, and acceptable risk-benefit ratio. To reach the target, the quality control (QC) should be performed from the study design to conduction, from the analysis to conclusion. We discuss the relationship between data management and biostatistics from the statistical point of view, and emphasize the importance of the statistical concept and methods in the improvement of data quality in clinical data management.
Biostatistics
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Clinical Trials as Topic
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statistics & numerical data
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Data Collection
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standards
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Quality Control
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Research Design
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standards
5.Relationship of statistics and data management in clinical trials.
Feng CHEN ; Hualong SUN ; Tong SHEN ; Hao YU
Acta Pharmaceutica Sinica 2015;50(11):1420-4
A perfect clinical trial must nave a solid study design, strict conduction, complete quality control, non-interference of statistical result, and acceptable risk-benefit ratio. To reach the target, the quality control (QC) should be performed from the study design to conduction, from the analysis to conclusion. We discuss the relationship between data management and biostatistics from the statistical point of view, and emphasize the importance of the statistical concept and methods in the improvement of data quality in clinical data management.
7.Compatibility of human umbilical vein endothelial cells and surface-modified PHBHHx film in vitro
Lei ZHANG ; Shuling BAI ; Feng PAN ; Hao TONG ; Erlin ZHANG ; Feng SHEN
Acta Anatomica Sinica 2009;40(6):958-962
Objective To evaluate the growing condition of human umbilical vein endothelial cells (HUVECs), which were cultured on the membrane of different component, such as Chinese medicine, before or after the alkali treatment of 3-hydroxybutyrate-co-3-hydroxyhexanoate copolyesters (PHBHHx) and the biocompatibility between PHBHHx flim and endothelial cell. Methods The HUVECs were harvested by Baudine method,and identified by immunohistochemical method.Then the HUVECs of third passage were inoculated on the material surface and cultured for 8 hours,12 hours and 24 hours. After that, the morphology of HUVECs on different surfaces were observed by scanning electron microscopy, the distribution condition on different membranes were compared by cell-labeling immunofluorescence, and the cell viabilities of all groups were detected by MTT method. Results The HUVECs were successfully separated,and immunohistochemistry staining of FLK-1 and factor Ⅷ was positive.The result of HUVECs culture showed that cells on the material surface growed well, and proliferated significantly. The MTT analysis showed that the PHBHHx film of surface modification and adding some certain proportion of Chinese medicine could promote the growth and proliferation of HUVECs in vitro,and the cells were thriving, full shape, distribution on the surface by scanning electron microscopy and fluorescence microscopy.Conclusion The PHBHHx film of surface modification and containing certain proportion of Chinese medicine coating had good compatibility of HUVECs, which was favourable to cell growth, adherence and proliferation in vitro.
8.Status quo of research on HGFc-Met signaling pathway in cancers.
Hui-ling SU ; Feng-ling LIU ; Tong HAO
Chinese Journal of Oncology 2013;35(5):321-324
Antibodies, Monoclonal
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therapeutic use
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Antineoplastic Agents
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therapeutic use
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Drug Resistance, Neoplasm
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Humans
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Mutation
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Neoplasms
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metabolism
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therapy
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Polymorphism, Single Nucleotide
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Proto-Oncogene Proteins c-met
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antagonists & inhibitors
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genetics
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metabolism
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Signal Transduction
9.Comparison analysis on remedy condition of acute chemical intoxication in emergency departments and occupational departments of general hospitals.
An LI ; Xiao-hong WANG ; Feng-tong HAO
Chinese Journal of Industrial Hygiene and Occupational Diseases 2013;31(3):212-214
OBJECTIVETo investigate the current situation of treatment for acute chemical poisoning in the emergency departments and occupational disease departments of some general hospitals and to provide a basis for improving the ability of general hospital to deal with acute chemical poisoning.
METHODSFour hospitals from Shandong Province, Beijing City, and Shanxi Province, China were selected in the study. They included two first-class hospitals located in the downtown, where the patients with acute chemical poisoning from urban and suburban areas were admitted to the occupational disease departments, and two second-class hospitals located in the suburban area or county, where the patients with acute chemical poisoning from the suburban area were admitted to the emergency departments. A questionnaire survey was conducted in 141 medical workers (51 persons in the emergence department group and 90 persons in the occupational disease department group) that were engaged in the treatment of acute chemical poisoning in the four hospitals; 1999 medical records were analyzed. Individual in-depth interviews, questionnaire investigation, and field observation were used to compare the emergency department group and occupational disease department group in terms of the ability to deal with acute chemical poisoning and the training on treatment for acute chemical poisoning.
RESULTSThe emergency department group had significantly higher proportion of pesticide poisoning cases than the occupational disease department group (P<0.01). Thirty-seven of the patients in occupational disease department group died, with a fatality rate of 2.7%, and 14 of the patients in emergence department group died,with a fatality rate of 2.2%, so there was no significant difference between the two groups in this regard (P>0.05). There were significantly more cases treated without emergency plan in the emergency department group than in the occupational disease department group ( 37.3% vs. 10.0%, P <0.0 1). The occupational disease department group had significantly higher score of knowledge about the treatment for acute chemical poisoning than the emergence department group (7.2±1.3 vs. 5.2±0.9, P<0.01 ). There were significantly lower proportions of medical staff who had received training on the knowledge about acute chemical poisoning and on the emergency disposal of acute chemical poisoning in the emergency department group than in the occupational disease department group (P<0.05).
CONCLUSIONThere is a lack of the knowledge about treatment for acute chemical poisoning and protective measures during treatment among the medical staff in general hospitals, and related training and emergency plan are needed.
Acute Disease ; Adult ; China ; Emergency Service, Hospital ; statistics & numerical data ; Female ; Hospital Departments ; statistics & numerical data ; Hospitals, General ; Humans ; Male ; Poisoning ; therapy
10.Effects of Nonylphenol on L-type Ca~(2+) Currents in Isolated Guinea-pig Ventricular Myocytes
Qinghua GAO ; Tong ZHU ; Feng GUO ; Lei YANG ; Meimi ZHAO ; Gang LI ; Liying HAO
Journal of China Medical University 2010;(2):81-83
Objective To observe the effects of nonylphenol(NP) on L-type Ca~(2+) currents(I_(Ca-L)) in isolated guinea-pig ventricular myocytes.Methods The ventricular myocytes were isolated from guinea-pig hearts.The L-type Ca~(2+) currents in the ventricular myocytes treated with NP were measured with whole cell patch-clamp technique.Results Nonylphenol inhibited lew,at different potentials.Nonylphenol (10~(-6) mol·L~(-1),10~(-5) mol·L~(-1)) reduced the peak amplitude of I_(Ca-L) from-3.2±1.5 pA·pF~(-1) to-1.6±0.8 pA·pF~(-1)(P<0.01) and-1.4±0.7 pA·pF~(-1)(P<0.01),respectively.Nonylphenol did not influence the activation curve of I_(Ca-L) significantly.Conclusion Nonylphenol could in hibit the L-type calcium currents in isolated guinea-pig ventricular myocytes with a concentration-dependent manner.Objective To observe the effects of nonylphenol(NP) on L-type Ca~(2+) currents(I_(Ca-L))in isolated guinea-pig ventricular myocytes.Methods The ventricular myocytes were isolated from guinea-pig hearts.The L-type Ca~(2+) currents in the ventricular myocytes treated with NP were measured with whole cell patch-clamp technique.Results Nonylphenol inhibited lew,at different potentials.Nonylphenol hibit the L-type calcium currents in isolated guinea-pig ventricular myocytes with a concentration-dependent manner.