Objective To observe the changes of systolic time interval after neonatal asphyxia and explore its relationship with clinical manifestation and prognosis. Methods Tow-dimensional and Doppler echocardiography were employed to detect tow - dimension parameters and left and right ventricular STI in 27 mild and 18 severe asphyxiated neonates as well as 14 normal controls and its relationship with clinical manifestation and prognosis was analyzed. Results There was no difference in cavity and thickness of heart and great arteries between normal and asphyxiated neonates. In acute stage mild and severe asphyxiated neonates had a shorter right ventricular ejection time (RVET) than normal neonates and a longer right ventricular prejection period (RPEP) was found in severe neonates than that in normal and mild asphyxiated neonates. Left ventricular preejection time (LPEP) was prolonged in comparison with normal neonates in acute stage and convalescence. There were more cases with increased RPEP/RVET in severe asphyxiaed group than those in mild and normal group in acute stage. The incidence of heart failure in acute stage and disability in late period was higher in cases with increased RPEP/RVET than that with normal RPEP/RVET. Conclusion Asphyxia has more severe damage to right ventricle than that to left ventricle. Cases with increased RPEP/RVET are prone to suffering from heart failure in acute stage and more likely to undergo disability in late period.

Objective To construct an eukaryotic recombinant plasmid with HGFSP, a hybrid gene encoding the antigen epitopes of MSA1, MSA2, RESA and CSP in different developing stages of Plasmodium falciparum(P.f. ). Methods HGFSP was sub-cloned into an eukaryotic expression plasmid pcDNA3 from a prokaryotic recombinant plasmid pSK-HGFSP to construct the eukaryotic recombinant expression plasmid pc-HGFSP. The identified recombinant was then transfected into HepG2 cells with liposome-mediated method. The G418-selected positive cell clones were tested to identify the immunogenicity of HGFSP-expressing antigen. Results It was evidenced that HGFSP was correctly inserted into pcDNA3 by restriction enzymes map analysis. HGFSP-expressing antigen-specific fluorescent response was observed in pc-HGFSP-transfected HepG2 cells. The results of SDS-PAGE and Western-blotting showed that there was a 23 kD protein band, which can be specifically recognized by anti-sera of HGFSP-expressing protein in pc-HGFSP-transfected HepG2 cell lysis. Conclusion Pc-HGFSP, an eukaryotic recombinant plasmid encoding hybrid antigen epitopes of P.f ., was constructed successfully and the antigenicity of pc-HGFSP-expressing protein was confirmed.

Objective This study was to observe the biological effects of eprenone on proliferation ,migration and apoptosis in human gastric epithelial cell line .Methods Human gastric epithelial cells GES‐1 were cultured in vitro .MTT assay were used to e‐valuate the proliferation of GES‐1 cells in different concentrations of teprenone and ensure the appropriate drug concentration .T ran‐swell test and scratch test were used to detect the migration ability of GES‐1 cells treated with appropriate concentration of eprenone .Flow cytometry analysis were used to detect the apoptosis of GES‐1 cells treated by the appropriate concentration of eprenone .Results Treated with eprenone for 24 h ,the proliferation of GES‐1 cells were increased as the concentration of teprenone from 10 to 80 μmol/L ,but from 80 to 320 μmol/L ,the promoting effect showed no staticall significant changes .So the appropriate drug concentration was determined to be 80 μmol/L .Treated with teprenone (80 μmol/L) for 24 h ,the transwell test showed that the migration rate of the teprenone group was 3 .338 ± 0 .293 and the control group was 1 .328 ± 0 .208 .So the number of staining blue cells in eprenone group were more than in control group obviously under membrane of transwell chambers (P<0 .01) .Scratch test showed that the migration rate of the eprenone group was 1 .00 ± 0 .18 and the control group was 0 .72 ± 0 .08 .Similarly ,the migration rate of eprenone group was higher than the control group(P<0 .05) .Treated with teprenone (80 μmol/L) for 48 h ,the apoptosis rate of the teprenone group was (11 .90 ± 1 .53)% and the control group was (25 .61 ± 0 .15)% ,the cellular apoptosis of eprenone group was lower than the control group (P<0 .01) .Conclusion Teprenone can promote the proliferation and migration , inhibit the apoptosis of GES‐1 cells .

Objective To determine the effect of dihydroartiminisin on the proliferation and phosphorylation of mitogen-activated protein kinase (MAPK) in SKOV3 and OVCAR3 ovarian cancer cell lines.Methods Methyl thiazolyl tetrazolium assay was performed to evaluate the anti-proliferative effect of dihydroartiminisin in SKOV3 and OVCAR3 cells,and Western blot was used to determine its effect on phosphorylation level of MAPK,including extra-cell regulated kinase (ERK)1/2 and p38 protein kinase,in the two cell lines.Results Dihydroartiminisin inhibited the proliferation of ovarian cancer cells in vitro,with a mean of 50% inhibition concentration (IC50) at 72 h of (9.0 ±1.4) μmol/L for SKOV3 and (5.5 ±1.2)μmol/L for OVCAR3 respectively. Compared to cells without dihydroartiminisin treatment,phosphorylation level of ERK 1/2 in SKOV3 and OVCAR3 cells treated with dihydroartiminisin decreased by 64.2% and 75.3% respectively (P＜0.05),while phosphorylation of p38 protein kinase in SKOV3 and OVCAR3 only decreased by 8.5% and 6.4% respectively (P ＞0.05).Conclusion Dihydroartiminisin can inhibit the proliferation of ovarian cancer cell in vitro, probably through down-regulation of the phosphorylation of ERK 1/2 in ovarian cancer cells.

Objective To study the value of heart-type fatty acid-binding protein(H-FABP)for the early diagnosis of blunt cardiac injury(BCI).Method A prospective stuay was carried out in 42 patients,who suffered from blunt thoracic injury and were admitted from January 2007 to June 2008,and another42 heathy individuals in the health center of the Shanghai Fifth Hospital were recruited as control.Serum H-FABP,cTn Ⅰ and Myo levels of both healthy individuals and petients at 3,6 and 12 hours after trauma were measured by using ELLSA.Serum cTn Ⅰ levels was taken as a golden standard for the diagnosis of BCI.Accroding to serum cTn Ⅰ levels.42 patients with blunt thoracic injury were divided into group of patient with myocardial damage(13 patients)and group of patients without(29 patients).The receiver operating characteristic curves(ROC)of H-FABP and cTn Ⅰ in the diagnosis of BCI drawed at 3,6 and 12 hours after trauma,respectively,and the areas under curve(AUC)of ROC were compared.The values of H-FABP and cTn Ⅰ for diagnosing at 3,6 and 12 hours after trauma were analyzed Differences in serum H-FABP,cTn Ⅰ and Myo concentrations between groups were compared by Kruskal Wallis tegt.The delong.clarkepearson test was used to compare the areas under the ROC curves.Results AUCH-FABP and AUCcTn Ⅰfor diagnosing BCI at 3 hours after trauma were 0.9257 and0.6844,respectively,and AUCH-FABF was significantly more than AUCcTn Ⅰ(P=0.0125).AUCH-FABP,was significantly less than AUCcTnⅠ(0.9841 vs0.8276,P=0.0278)for diagnosing BCI at 12 hours after trauma.There was no significant difference in diagnosing BCI between AUCH-FABp and AUCcTn Ⅰat 12 hours after trauma(0.9655 vs.0.9125,P=0.2609).Conclusions H-FABP is valuabe in the early diagnosis of BCI,and its sensitivity is higherthanthat of cTnⅠ in diagnosing BCI at 3 hours after trauma.

Aged, 80 and over ; Angioplasty, Balloon, Coronary ; Compartment Syndromes ; complications ; therapy ; Female ; Humans ; Radial Artery

Objective To evaluate the value of Microparticle Enzyme Immunoassay(MEIA),a quantitative assay, in the diagnosis and treatment of chronic hepatitis B (CHB). Methods MEIA, Enzyme linked immunoabsorbent assay (ELISA), and quantitative PCR were used to detect e antigen, hepatitis B serum markers, and the quantity of HBV DNA in 249 CHB patients and 32 non CHB patients respectively. Expression of HBcAg in Liver tissue was detected by using S P method. These measures were used to illuminate the relationships among serum e antigen quantity, hepatitis B serum markers, the quantity of HBV DNA, the quantity of HBcAg in hepatocytes, and pathologic diagnosis of liver tissues. Results 1. The sensitivity of MEIA (80.28%) to detect serum e antigen is higher than that of ELISA (69.01%)( ? 2=9.312, P =0.002).2. The serum e antigen quantity is positively correlated with the logarithm of the quantity of HBV DNA ( r =0.411, P =0.000). 3. The level of serum e antigen is positively correlated with the semi quantitative of HBcAg in hepatocytes ( r =0.646, P =0.000). 4. The serum e antigen quantity is negatively correlated with pathologic degree of liver tissues ( r =-0.172, P =0.006). Conclusions MEIA is a sensitive, stable, and reliable method to assay the serum e antigen quantity which could be used to evaluate the replication of HBV and the degree of liver damage.

Objective To study the anti-tumor effects of humulon on arylamine N-acetyltransferase-1(NAT1)activity.Methods Employing HPLC,using PABA as substrate,in intact SGC-7901 cells and their cytoplasm,making PABA being acetylated to Ac-PABA by NAT1 as the activity of NAT1.Reverse transcriptase polymerase chain reaction(RT-PCR)assay was used to study the expression of the NAT1 mRNA.Results The results show that humulon could inhibit the production of Ac-PABA in intact SGC-7901 cell and the cytoplasm,the production of Ac-PABA was gradually increased with the interaction time increasing.But comparing with corresponding negative control group's,the production of Ac-PABA was decreased evidently and the humulone could inhibit the expression of NAT1 mRNA.Conclusion Humulon could prevent the occurrence and deterioration of cancer.Its mechanisms can be attributed to its effect on decreasing the production of acetylation of carcinogenic aromatic amines,which is acetylated from aromatic amines,and inhibiting the NAT1 activity and expression of NAT1 mRNA.

Objective To explore the effects of humulon on kinetic parameters of N-acetyltransferase-1(NAT1) of human gastric cancer SGC-7901.Methods Employing HPLC,using para-aminobenzoic acid(PABA) as substrate,in intact SGC-7901 cells and their cytoplasm,taking the speed of PABA being acetylated to Ac-PABA by NAT1 as the rate of NAT1,using double reciprocal plot,taking the reciprocal of concentration of PABA and reaction rate of NAT1 as coordinates,regression equation was obtainied and the Michaelis constant(Km) and maximum reaction velocity(Vmax) were calculated.Results Study on enzyme kinetics demonstrated,as for intact SGC-7901 cells,Km and Vmax of control group were(3.910?0.087) ?mol/L and(0.306 0?0.006 7) pmol/L(1?106 cells),respectively,Km and Vmax of the humulon group were(3.830?0.123) ?mol/L and(0.275 0?0.005 8) pmol(1?106 cells),respectively.As for the cytoplasm of SGC-7901 cells,Km and Vmax of control group were(760.2?210.2) ?mol/L and(0.191 0?0.043 7) pmol/(mg?min),Km and Vmax of the humulon group were(449.0?72.9) ?mol/L and(0.094 0?0.010 4) pmol/(mg?min).Statistically,as for intact SGC-7901 cells or their cytoplasm,there was no difference of the Km between control group and humulon group,but there was remarkable difference of Vmax between control group and humulon group,P

AIMTo investigate the bio-affinities of ligustilide and butylidenephthalide to rat aortic smooth muscle cells and the inhibitory effects of them on bFGF-stimulated proliferation of rat vascular smooth muscle cell (VSMC).

METHODSVSMCs were cultured from rat aorta pectoralis and identified by an immunohistochemical method. The bio-affinities between solute (ligustilide or butylidenephthalide) and cell membrane were measured by rat aortic cell membrane chromatography (CMC). The inhibitory effects of ligustilide and butylidenephthalide on bFGF-stimulated VSMC proliferation were evaluated by MIT colorimetric method.

RESULTSBoth ligustilide and butylidenephthalide had selective affinities to rat aortic smooth muscle cell as the same as verapamil, one of the calcium ion antagonists. They could potently inhibit the bFGF-stimulated VSMC proliferation at the concentrations of 5.5 and 11.1 micromol x L(-1), separately (P < 0.05), but had no effects on the normal VSMC growth.

CONCLUSIONBoth ligustilide and butylidenephthalide can inhibit the abnormal proliferation of VSMC induced by bFGF.

4-Butyrolactone ; analogs & derivatives ; isolation & purification ; pharmacology ; Animals ; Aorta, Thoracic ; cytology ; Cell Proliferation ; drug effects ; Cells, Cultured ; Female ; Fibroblast Growth Factor 2 ; antagonists & inhibitors ; Ligusticum ; chemistry ; Male ; Muscle, Smooth, Vascular ; cytology ; drug effects ; Myocytes, Smooth Muscle ; cytology ; drug effects ; Phthalic Anhydrides ; isolation & purification ; pharmacology ; Plants, Medicinal ; chemistry ; Rats ; Rats, Sprague-Dawley