1.Analysis of cause and correlative factors of death within short-term in initially lucid patients with intracerebral hemorrhage
Zhiping WU ; Chuanqiang PU ; Chenglin TIAN
Journal of Clinical Neurology 1992;0(01):-
Objective To analyze the correlative factors and cause of death within short-term in initially lucid patients with intracerebral hemorrhage (ICH).Methods 441 patients with spontaneous ICH admitted within 24 hours of onset and with Glasgow Coma Scale (GCS) score more than 9 on admission were enrolled. The demographic characteristics, clinical features at onset, CT, electrocardiograph (ECG) and laboratory findings, medical complications and 27 days outcome were recorded. Univariate and multivariate analysis were performed.Results 24 (5.4%) patients died winthin 27 days after onset, 14 (58.3%) died of brain herniation and central respiratory failure, another 10 (41.7%) of systemic complications. Multivariate analysis demonstrated that age was 75 years old or more, urinary incontinence at onset, peripheral white blood cell count more than 10.0?10 9/L on admission, blood glucose more than 7.0 mmol/L and abnormal ECG were independent correlative factors of death.Conclusions The short-term outcome of initially lucid patients with ICH is favorable in general, albeit with a relatively low mortality. Brain herniation and central respiratory failure were main cause of death, and they have independent correlative risk factors.
2.X-ray,CT diagnosis of mediatinal emphysema in the neonate
Zhengguang WU ; Chenglin WANG ; Zhongxin WANG
Chinese Journal of Primary Medicine and Pharmacy 2006;0(04):-
Objective To summarize X-ray,CT finding of mediatinal emphysema in the neonate.Methods The X-ray,CT finding of 16 cases with mediatinal emphysema in the neonate were anolysed retrospectively.Results X-ray finding of 16 cases were:around diaphram with a low density band 13 cases,with spinnaker sign 8 cases,with continous diaphram sign 3 cases,there were only little emphysema in anterior-mediatinal 3 cases,accompany with pneumothorax 5 cases.CT imaging of 3 cases was a low density image in diaphram that was CT value was negative(-500~-900Hu).Conclusion Radiography of chest is the first method about diognosis mediatinal emphysema in the neonate,profile chest is more profit to diagnose little emphysema in anterior-mediatinal,CT can diagnose further clear.
3.Expression of TLR2 and TLR4 in the lungs of mice infected by candida glabrata
Ye WU ; Xueping LUO ; Chenglin WU ; Xue ZHANG
Chongqing Medicine 2014;(30):4034-4036,4039
Objective To study the roles of Toll-like receptor 2(TLR2)and Toll-like receptor 4(TLR4)in the progress of pulmo-nary infection with candida glabrata in experimental mice .Methods The mice were divided into three groups ,the control group (group A) ,mice infected with candida glabrata(group B)and immunosuppressive mice infected with candida glabrata(group C) .6 mice in each group were killed at 1st and 3rd day after the success in pulmonary infection with candida glabrata .The lung tissues from each group were collected for pathological analysis and PT-PCR to detect the expression level of TLR2 and TLR4 .Protein TNF alpha(TNF-α)level was measured by ELISA method .Results The pathological analysis showed the structure was normal and there was no inflammatory reaction in lungs in group A .The infiltration of inflammatory cells ,weak injuries but no conidia or hyphae in lungs were found in group B .Most of the alveolar collapse and severe damage ,part of the expansion ,a large number of in-flammatory cells infiltration ,accompanying with conidia and hyphae accumulation were observed in group C .The expression levels of TLR2 mRNA and TNF-αprotein in mice lungs at the 1st day and the 3rd day in group C were significantly higher than in group A and B(P<0 .05) ,while group B was higher than group A(P<0 .05);The expression levels of TLR2 ,TLR4 mRNA and TNF-αprotein in group C at the 3rd day was higher than the 1st day(P<0 .01) ,meanwhile ,the expression of TLR4 was higher than in group A(P<0 .05) .Conclusion TNF-αand TLR2 expression maybe involve in the infection and process of candida glabrata ,and TLR4 may play a synergistic effect .
4.Determination of Quercetin and Kaempferol in Platycladus orientalis Carbonisatus by RP - HPLC
Huaien WU ; Hanshen ZHEN ; Zhiying WEI ; Chenglin CHEN
China Pharmacy 2001;0(12):-
OBJECTIVE:To determinate the contents of quercetin and kaempferol in Platycladus orientalis carbonisatus by RP - HPLC.METHODS:The determination was performed on Lichrospher C_(18)(250 mm?4.6 mm,5?m) with mobile phase consisted of methanol-0.2%phosphoric acid solution(55:45) at a flow rate of 1.0 mL?min~(-1).The column temperature was set at 25℃and the detection wavelength was set at 368 nm.RESULTS:The linear ranges of quercetin and kaempferol were 0.24~1.68?g(r =0.999 9) and 0.052~0.624?g(r = 0.999 8),respectively.The average recovery rates of quercetin and kaempferol were 100.91%(RSD = 0.80%,n = 6)and 99.59%(RSD = 1.07%,n = 6),respectively.CONCLUSION:The method is simple,accurate,reproducible,and applicable for the quality control of Platycladus orientalis carbonisatus.
5.Simple three-dimensional human body model for the computer-assisted location system of the micro device inside the human body
Xudong WU ; Wensheng HOU ; Chenglin PENG ; Xiaolin ZHENG
Chinese Medical Equipment Journal 1989;0(04):-
It is necessary to build a three-dimensional human body model to display the position and track the route of a micro device inside the human body exactly. The key is to construct a three-dimensional human body model according to the patient characteristic. This paper gives a simple way to build the personal geometric model based on the OpenGL programming in the Visual Basic environment. It is proved that the method contributes to the realtime interactive operation to change the model character according to the individual parameter.
6.Correlation between Val279Phe, Ile198Thr mutation in lipoprotein-associated phospholipase A2 gene and cerebral infarction
Jian WU ; Xiong ZHANG ; Chenglin YUAN ; Hengzhong ZHANG ; Long YU
International Journal of Cerebrovascular Diseases 2011;19(6):437-441
Objective To investigate the correlation between the mutation in serum lipoprotein-associated phospholipase A2(Lp-PLA2) Ile198Thr, Val279Phe and cerebral infarction in Chinese Han population of Jiangsu Province. Methods One hundred fifty patients with cerebral infarction and 100 healthy controls in Chinese Han population of Jiangsu Province were recruited. The correlation between Val279Phe and Ilel98Thr mutation in Lp-PLA2 gene and cerebral infarction was analyzed using polymerase chain reaction and denaturing high performance liquid chromatography. Results The Val279Phe genotype and the mutant allele frequency in the cerebral infarction group were significantly higher than those in the control group (χ2 were 6. 31and 5. 32, respectively, all P <0. 05), and there was no significant difference between the Ile198Thr genotype and the mutant allele frequency in the control group (χ2 were 0. 039 and 0. 037, respectively, all P >0. 05). Conclusions The Val279Phe mutation in Lp-PLA2 gene may be a genetic risk factor for cerebral infarction in Chinese Han population of Jiangsu Province.
7.The development of a pocket blood pressure holter based on handhold personal computer.
Jing PENG ; Chenglin PENG ; Baoming WU
Journal of Biomedical Engineering 2003;20(1):129-131
This paper introduces a kind of pocket blood pressure holter based on handhold personal computer. The measurement of blood pressure is controlled by ultralow power consumption MCU. The system configures interface circuit with handhold personal computer. The BP data can be stored, displayed, analysed and transmitted by handhold personal computer. The measurement parameters can be modified. The hardware is made up of three units: simulation circuit unit, intelligent control unit and interface circuit unit. Every unit structure and its principle are presented. The software of obtaining the BP data and communication with handhold personal computer are also illuminated. The system possesses the characters of portability, intelligence, convenience, high precision, ultralow power consumption and stable capability. It is possible to become an ideal blood pressure monitor in family.
Blood Pressure Monitoring, Ambulatory
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instrumentation
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Equipment Design
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Microcomputers
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Software Design
8.Effects of heat-treated candida glabrata on the expression of Dectin-1,the production of IL-6 and TNF-α in rat tracheal epithelial cells
Xue ZHANG ; Xueping LUO ; Jian BAI ; Yuchun WANG ; Chenglin WU ; Ying ZHAO
Chongqing Medicine 2016;45(7):865-868
Objective To explore the effects of co‐cultured heat‐treated candida glabrata with rat tracheal epithelial (RTE) cells on the expression of Dectin‐1 and the production of IL‐6 and TNF‐α.Methods RTE cells in vitro were co‐cultured with heat‐treated candida glabrata bacteria liquid for 2 ,4 ,6 h ,while without co‐cultured RTE cells were used as control group .We observed the morphological changes of RTE cells ,detected the protein expressions of Dectin‐1 by Western blot ,used real‐time PCR to detecte the mRNA expressions of IL‐6 and TNF‐αand measured protein expression of IL‐6 and TNF‐αby ELISA .Results With the pass‐ing of time ,the RTE cells were damaged extensively and the expression of Dectin‐1 ,IL‐6 and TNF‐αbecame more and more signifi‐cant .Obviously ,there had significant difference in the expression of Dectin‐1 ,IL‐6 and TNF‐α between the co‐cultured 2 h group and the control group ,the co‐cultured 4 h group and the co‐cultured 2 h group ,the co‐cultured 6 h group and the co‐cultured 4 h group (P<0 .05) .Conclusion RTE cells have natural immune function .The Dectin‐1 involves in the recognition of heat‐treated Candida glabrata ,activating secretion of IL‐6 and TNF‐αand mediating inflammatory reaction .IL‐6 plays a negative regulation role .
9.Association of coagulation factor Ⅻ gene C46T polymorphism and coronary artery disease in patients documented angiography
Kangsong WU ; Geng XU ; Guodong JIN ; Chenglin HUANG ; Ji MA ; Jiang SHAN
Chinese Journal of Pathophysiology 2010;26(2):374-378
AIM: To study the distribution of C46T polymorphism of factor Ⅻ(FⅫ) in Chinese Han population and the association of the polymorphism with coronary artery disease(CAD) and acute coronary syndrome(ACS). METHODS: Selected coronary angiography was performed in 168 CAD patients and 210 controls. Genetype of FⅫ was typed by mutagenically separated polymerase chain reaction assay(MSPCR). RESULTS: FⅫ allelic frequencies of C and T were 29.8%, 70.2% and 31.4%, 68.6% in CAD and controls, respectively(P>0.05). Genetype distribution was in accordance with Hardy-Weinberg equilibrium. The frequency of CC, CT, TT in CAD and control was 8.7%, 40.5%, 50.0% and 5.2%, 52.6%, 42.2%. The association between FⅫ genetype and CAD(χ~2=6.393, P<0.05) was observed. As compared with the CC group, the CT genetype was a protective factor for CAD(OR 0.43, 95% CI 0.19-0.97). When compared to stable coronary artery disease, the frequency of TT genetype is significant less in ACS group(45.0% vs 62.5%, χ~2=4.200, P<0.05). The distribution of genetype in C46T was no significant difference among the numbers of stenosed coronary artery. CONCLUSION: The C46T polymorphism of FⅫ is association with CAD in Chinese Han population. The C→T mutation may be a protective factor against CAD and ACS.
10.Screening and verifying the proteins interacting with phosphorylation cluster of DNA-PKcs by yeast two-hybrid assay
Chenglin WU ; Xiaodan LIU ; Yuxiao WANG ; Li DU ; Kaifei FU ; Lijun ZHOU
Chinese Journal of Radiological Medicine and Protection 2017;37(6):401-407
Objective To screen and verify the proteins interacting with phosphorylation cluster of DNA dependent protein kinase catalytic subunit((DNA-PKcs) by yeast two-hybrid assay.Methods To know the proteins interacting with DNA-PKcs phosphorylation cluster,yeast two-hybrid assay was applied to screen the cDNA library of human hepatic tissue with a previously constructed plasmid pGBKT7-DPC.The positive clones were further identified by PCR,rotary validation and sequence analysis.Then the eukaryotic expression vectors of the bait protein and screened positive clone proteins were constructed and transfected into human embryonic kidney 293T cells to detect whether the proteins could been expressed correctly.At last,the bait protein and screened positive clone proteins were co-transfected into 293T cells and protein interaction was detected with Co-Immunoprecipitation (Co-IP) assay.Results After two rounds of screening using the yeast two-hybrid assay,12 candidate clones were obtained.Then 7 clones with different insert fragments were identified by PCR,and 3 positive proteins interacted with DNA-PKcs phosphorylation cluster were further verified by rotary validation.Sequencing analysis demonstrated that these 3 proteins were MBNL1,SIK2 and YY1AP1,respectively.Accordingly,the eukaryotic expression vectors of bait protein and 3 positive clone proteins were constructed successfully and expressed correctly in 293T ceils.Finally,the Co-IP assay confirmed that these 3 positive clone proteins could interact with DNA-PKcs phosphorylation cluster.Conclusions Proteins interacting with DNA-PKcs phosphorylation cluster are successfully screened and identified.