1.Safety of antidepressant treatment of coronary heart disease accompanied with depression
Chinese Journal of Practical Internal Medicine 2000;0(12):-
Cardiovascular disease has become the first cause of human death.Among the many risk factors in coronary heart disease,depression has been identified as an independent prognostic risk factors.In patients with coronary heart disease accompanied by severe depression,the onset of angina,quality of life deterioration and the mortality will increase by 3~5 times.However,the majority of antidepressant drugs have adverse effects on cardiovascular disease adverse drug reactions,making coronary heart disease patients with depression,did not receive antidepressant treatment due.So more researches to clarify the anti-depressant drugs,safety for cardiovascular disease are needed.
2.Influence of Different Processing Method on the Content of Paeoniflorin in Radix Paeoniae Alba
Weijing SHI ; Mingming CHU ; Zhijing TAN
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(12):-
stir-baked Radix Paeoniae Alba with vinegar. Conclusion Different processing method has great influence on the paeoniflorin content of Radix Paeoniae Alba.
3.The preliminary research on the quantitative perfusion measurement of meningioma by CT perfusion imaging
Yuxin SHI ; Jianfeng XU ; Mingming CHI ;
Chinese Journal of Radiology 2000;0(12):-
Objective To assess the contribution of CT perfusion in the quantitative diagnosis of meningiomas Methods The CT perfusion imaging was performed in 13 patients (including 2 recurrent meningiomas) by using Somatom Plus 4 helical CT The color map of relative cerebral blood volume (rCBV), relative cerebral blood flow (rCBF), and mean transit time (MTT) was obtained by perfusion software, and rCBF, rCBV, and MTT were calculated in different areas Then the perfusion parameters and its mean ratios between tumor and contralateral normal brain tissue (CNBT) in each group of different pathologic types of meningiomas were compared using an unpaired or a paired Student t test Results The rCBV, rCBF, and MTT of meningiomas were significantly higher than those of CNBT [rCBV:(16 125?12 135) ml/100 g vs (2 158?1 345) ml/100 g, P 0 05) The characteristic time density curve (TDC) with high peaks was seen in 5 cases The rCBV and rCBF of 4 cases with peritumor brain edema were significantly lower than those of CNBT Conclusion CT perfusion imaging can not only provide quantitative information of meningiomas blood flow and show characteristic dynamic TDC, but also is useful in assessing pathology of tumor and demonstrating lower perfusion in peritumor brain edema and diagnosis of recurrent meningiomas
4.Construction of microRNA Let-7b-mediated recombinant influenza A (H1N1) virus with mutated PB1
Mingming TAN ; Xiaoyue SHEN ; Wenkui SUN ; Di XIA ; Yi SHI
Journal of Medical Postgraduates 2015;(7):683-687
Objective Vaccination is a most effective method for the prevention of severe diseases caused by pandemic influenza and microRNA ( miRNA) mediated gene silencing has offered a novel approach to the construction of new vaccines.Our study aimed to construct a recombinant influenza A ( H1 N1 ) virus with the PB1 gene that carries the target fragment of miRNA Let-7b. Methods After comparing the sequence of the A/Nanjing/108/2009 H1N1 viral fragments with that of Let-7b, we selected PB1 as the optimal gene sequence, inserted the Let-7b binding target gene into PB1, ligated the modified fragments with pDP 2000, and named the recombinant plasmids pDP-mu-PB1 and pDP-sclb-PB1, respectively.We co-transfected the MDCK and 293T cells with the recombinant and other seven plasmids and injected the supernatant into the allantoic cavity of the chickenembryo for virus propagation, followed by detection of the virus by hemagglutination ( HA) assay and measurement of the viral titer by TCID50 .We amplified the viral cRNA by RT-PCR and identified the viruses by agarose gel electrophoresis and nucleotide sequence analysis. Results PB1 was the optimal sequence ( 83 bp -107bp) for the attenuation of viruses.The HA-titers of miRT-H1N1 and scbl-H1N1 were 1∶32 and 1∶64, and their viral loads were 4.68 ×105 and 7.94 ×104 TCID50/mL, respectively.Nucleotide sequence analysis showed the expected fragment in the rescued virus. Conclusion A recombinant strain vaccine was successfully constructed, which has laid the foundation for fur-ther assessment of virulence.
5.Effects of p38-2 G4 high-expression on the proliferation and erythriod differentiateon of murine erythroleukemia cells
Xiaofang ZHU ; Mingming SHI ; Zuli YANG ; Fukun ZHAO ; Shifu ZHANG
Acta Anatomica Sinica 2014;(5):670-674
Objective To explore the effect of mouse proliferation-associated protein 2G4 (p38-2G4) high-expression on the proliferation and erythriod differentiation of murine erythroleukemia ( MEL ) cells.Methods To establish the recombinant lentivirus vector p 38-2G4-pLJM1, the p38-2G4-pLJM1 was cotransfected into HEK293T cells to obtain lentivirus with pCMV-VSV-G and pCMV-dR8.2.Lentivirus were infected into MEL cells to establish the stably p 38-2G4 high-expressed MEL cells.Western blotting was used to analyse the high-expression efficiency.MTT assay and benzidine staining were applied to detect the cell viability and hemoglobin synthesis of the stable cell line in presence /absence of inducers.Results Western blotting showed that the p38-2G4 high-expression stable cell strain had a higher expression of p38-2G4 as compared to the control group ( MEL) ( P <0.05).MTT result showed that there was no difference between the p38-2G4 high-expression cell strain and the control group (P>0.05), but the hemoglobin synthesis had been reduced as compared to the control group (P<0.05).Conclusion p38-2G4 high-expression does not affect the cell viability of MEL cells , but inhibits the erythriod differentiation of MEL cells in three independent experiments .
6.In- vitro Antibacterial Activity of Ethanol- Extract of Galla Chinensis against Staphycoccus Aureus
Zhongxing LI ; Xiuhua WANG ; Mingming ZHANG ; Dongyan SHI
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(02):-
Objective To evaluate the in- vitro antibacterial activity of e thanol- extract of Galla Chinensis against Staphycoccus aureus (S. aureus).Meth ods The minimum inhibitory concentration (MIC50) of ethanol- extract of Galla Chinensis against 112 strains of S. aureus was detected by using agar dilution method.Results The MIC50 and MIC90 of ethanol- extract of Galla Chinensis aga inst 84 strains of MRSA (methicillin- resistant staphylococcus aureus) were 0. 315, 0.315 mg/mL, and those against 28 strains MSSA (methicillin- sensitive sta phylococcus aureus) were 0.63 and 0.315 mg/mL respectively.Conclusion Ethanol - extract of Galla Chinensis has a strong antibacterial activity against S.aure us.
7.Clinical features of 86 children with essential hypertension complicated with target organ damage
Yao LIN ; Lin SHI ; Jie MI ; Yang LIU ; Mingming ZHANG ; Xiaohui CONG
Chinese Journal of Applied Clinical Pediatrics 2014;29(17):1314-1316
Objective To study the clinical features of target organ damage in children with essential hypertension.Methods From Jan.2007 to Oct.2013,86 children were enrolled who were diagnosed as essential hypertension in the Children's Hospital Affiliated to Capital Institute of Pediatrics.All children received the following examinations:fundus oculi,electrocardiogram,echocardiography,serum triglyceride,glucose,insulin,C peptide,uric acid,renal function,urine microalbumin,serum and urine β2-microglobulin.All data were collected as standard procedure and analyzed by using statistic methods.Results In all recruited children,there were 68 boys (79.1%)and 18 girls (20.9%) with the average age of (12.3 ±2.4) years old.There were 46 children(53.5%) with grade Ⅰ hypertension and 40 (46.5%) with grade Ⅱ hypertension,13.5% (7/52 cases) of the children with retinal vessel damage,21.0% (17/81 cases) with abnormal electrocardiogram,and 2.6% (2/78 cases) with left ventricular hypertrophy and increased left ventricular posterior w all thickness.Thirty-seven percent (30/81 cases) of the children had a higher voltage of R wave in V5 than average values at the same ages.Renal damage mainly included increased serum creatinine and microalbuminuria,with the rates of 40.2% (33/82 cases) and 39.7% (23/58 cases),respectively.Metabolic disorders mainly included 87.5% (56/64 cases) hyperuricemia,32.5% (25/77 cases) hypertriglyceridemia,22.1% (19/86 cases) hepatic adipose infiltration,and 36.1% (30/83 cases) hyperinsulinemia or sugar intolerance damage.There were 58 (67.4%) children wit h obesity.Compared with normal weight children,children with obesity had a higher rate of target organ damage(98.3% vs 82.1%,x2 =5.291,P =0.021),and hyperinsulinemia or sugar intolerance damage(45.5% vs 17.9%,x2 =6.123,P =0.013).Children with the course longer than 6 months showed a higher rate of hyperinsulinemia or sugar intolerance damage than the children with the course less than 6 months(50.0% vs 25.5%,x2 =5.788,P =0.021).Conclusions Target organ damage caused by adolescent essential hypertension is present at diagnosis in most of these children.Electrocardiogram and echocardiography are effective measures for early detection of cardiac damage of hypertension.Serum uric caid and urine microalbumin can be used as early warning and screening indexes.To enhance blood pressure monitoring of children with obesity will be helpful for early diagnosis of essential hypertension,which will decrease the rate of target organ damage with earlier effective interference.
8.Impact of basic diseases on the clinical symptoms and prognosis of cryptococcosis
Yuan DING ; Mingming TAN ; Di XIA ; Qian HE ; Yi SHI ; Xin SU
Journal of Medical Postgraduates 2015;(7):719-722
Objective Cryptococcosis is a potential life-threatening systemic mycosis with a heterogeneous susceptible popu-lation which is classified into three groups according to the current guidelines, including AIDS patients, organ transplantation recipients ( OTR) , and non-HIV-infected and non-transplant hosts ( NHNT) .This study aimed to discuss the influence of basic diseases on the clinical features and prognosis of NHNT cryptococcosis patients. Methods Using a retrospective cohort study design, we retrieved the clinical data about 73 NHNT cryptococcosis patients treated in Jinling Hospital.Based on the presence or absence of immunodefi-ciency or infection-increasing complications, we divided the patients into a basic disease group ( n=35) and a non-basic disease group ( n=38) and analyzed their clinical characteristics, chest radiographic features, laboratory results, and clinical outcomes. Results Compared with the non-basic disease group, the basic disease group showed a significantly higher incidence rate of disseminated disea-ses (62.9%vs 21.1%, P<0.01), more cases of patchy consolidation (47.4%vs 16.7%, P<0.05) and mixed lesion (31.6%vs 3.3%, P<0.05) in chest radiography, and a higher mortality (30.0%vs 5.3%, P=0.016). Conclusion Basic diseases have a great impact on the clinical features and prognosis of NHNT cryptococcosis.NHNT patients with basic diseases are susceptible to dis-seminated diseases with severer clinical symptoms and a higher mortality.
9.Comparative proteomic analyses on the differentiation of dimethyl sulfoxide induced murine erythroleukemia cells
Zuli YANG ; Xiaofang ZHU ; Mingming SHI ; Fan HU ; Fukun ZHAO ; Shifu ZHANG
Acta Anatomica Sinica 2014;(4):507-515
Objective To explore the differentially expressed proteins during erythroid differentiation .Methods The murine erythroleukemia ( MEL) cell were treated by DMSO , and the comparative proteomic was systematically analyzed and identified on different differentiating time points .ratio of cell differentiation and viability were detected by benzidine staining, MTT assay and Ter119 immunofluorescence.Using two-dimensional gel electrophoresis combined with mass spectrometry technology and bioinformatics analysis , we conducted a comparative proteomic analysis on MEL cells during the process of induced differentiation to screen and identify differential proteins .Results The MEL cells induced by 1.2%DMSO for 0 hour, 6hours, 12hours, 24hours, 36hours, 48hours, 72 hours, 96 hours, 120 hours were collected for proteomic analysis, by two-dimensional gel electrophoresis combined with mass spectrometry .A total of 87 kinds of proteins were successfully identified .MEL cells exposed to DMSO at a final concentration of 1.2% for 120 hours reached the highest differentiation rate of 67%.MTT assay showed that 1.0%, 1.2%, 1.4% DMSO had no inhibiting effect on cell vitality.Conclusion DMSO may induce MEL cells to differentiate and have no inhibiting effect on cell vitality .The 87 kinds of differentially expressed proteins from two-dimentional gel electrophoresis may be divided into twelve categories ;the most three parts are 41%enzyme protein, 15%structural protein and 13%regulatory protein.
10.Construction and identification of a recombinant adenoviral vector expressing murine dendritic cell-associ-atedC-type lectin-1
Di XIA ; Qian QIAN ; Zhicheng LIU ; Mingming TAN ; Yuan DING ; Xin SU ; Wenkui SUN ; Yi SHI
Journal of Medical Postgraduates 2015;(4):341-345
Objective Dendritic cell-associatedC-type lectin-1 ( Dectin-1) is one of the most important receptors in antifungal innate immune response.This study was to construct a recombinant adenovirus vector expressing themurine Dectin-1gene and acquire a high-concentration adenovirus by amplification and purification. Methods The PCR amplification product CLEC7A-pIRES2-EGFP was cloned into the intermediate vector pDONR221, and then recom-bined with the backbone vector pAD/CMV/V5-DEST to produce a re-combinant plasmid pAD-CLEC7A-pIRE2S -EGFP.The recombinant plasmid was linearized with Pac I and transfected into human embryon-ic kidney ( HEK293) cells to produce recombinant adenovirus pAD-CLEC7Ap-IRES 2-EGFP. The adenovirus was propagated in the HEK293 cells and purified by filtering through the cellulose acetate membrane and concentrating column.Fluorescence microscopy and re-al-time PCR were used to determine the expression of the Dectin-1 gene. Results PCR identification, enzyme digestion, and sequen-cing results manifested theDectin-1 gene in the vector, with the final adenovirus titer of 5×1011 IU/mL.Fluorescence microscopy revealed green fluorescence and real-time PCR assay confirmed that the expression of Dectin-1 was improved by 8677.25 times. Conclusion A relatively high-titer adenovirus expressing Dectin-1 was acquired,which may help to further study the high expression of Dectin-1 in anti-fungal innate immunity in vitro and in vivo.