Objective: To study the expressions of CD147and MMP9 in the lung metastasis model of breast cancer in BCML-TAII99 mice and their correlation with tumor growth and metastasis thereof. Methods: The breast cancer model with lung metastasis was established in BCML-TAII99 mice. The immunohistochemical staining method(SP method) was used to analyze the expressions of CD147 and MMP9 in mice lung metastasis tissue. The relationship between the tumor growth and the metastasis was analyzed. Results: The positive rates of CD147 and MMP9 were 63.33%（19/30）and 53.33%（16/30）respectively in mouse models. There was significant difference in positive rate of expressions between the metastasis group and the non-metastasis group（χ~2= 6.238， P ＝ 0．013； χ~2＝ ＝5．129， P ＝ 0．024). There was a statistically significant positive correlation between the expression of CD147 and MMP9（r = 0．786， P ＝ 0.025). Conclusion: The expression of CD147 may play a crucial role in infiltration and metastasis of breast cancer by inducing the expression of MMP9.

Humans ; Lymphoma ; classification ; pathology ; Lymphoma, B-Cell ; classification ; pathology ; Lymphoma, T-Cell ; classification ; pathology ; Lymphoproliferative Disorders ; pathology ; Pseudolymphoma ; pathology ; Skin Neoplasms ; classification ; pathology ; World Health Organization

The aim of this study is to prepare hyaluronic acid (HA) modified core-shell liponanoparticles (pHA-LCS-NPs) as gene delivery system and investigate its gene transfection efficiency in human retinal pigment epithelium (ARPE-19) cells in vitro. The pHA-LCS-NPs was prepared by firstly hydrating dry lipid film with CS-NPs suspension to get LCS-NPs, then modifying the lipid bilayer with HA by amidation reaction between HA and dioleoyl phosphatidylethanolamine (DOPE). Its morphology, particle size and zeta potential were investigated. XTT assay was used to evaluate the cell safety of different vectors in vitro. The gene transfection efficiency of pHA-LCS-NPs modified with different contents of HA was investigated in ARPE-19 cells with green fluorescent protein (pEGFP) as the reporter gene. The results showed that the obtained pHA-LCS-NPs exhibited a clear core-shell structure with the average particles size of (214.9 +/- 7.2) nm and zeta potential of (-35 +/- 3.7) mV. The 24 h cumulative release of gene from pHA-LCS-NPs was less than 30%. After 48 h incubation, gene transfection efficiency of pHA-LCS-NPs/pEGFP was 1.81 times and 3.75 times higher than that of CS-NPs/pEGFP and naked pEGFP, respectively. Also no obvious cytotoxicity was observed on pHA-LCS-NPs. It suggested that the pHA-LCS-NPs might be promising non-viral gene delivery systems with high efficiency and low cytotoxicity.
Cell Survival ; Gene Transfer Techniques ; Genes, Reporter ; Genetic Vectors ; Green Fluorescent Proteins ; metabolism ; Humans ; Hyaluronic Acid ; chemistry ; pharmacology ; Lipids ; Nanoparticles ; Particle Size ; Phosphatidylethanolamines ; chemistry ; pharmacology ; Retinal Pigment Epithelium ; drug effects ; Transfection

ObjectiveToinvestigatethecorrelationbetween-2578C>Apolymorphismofvascular endothelium grow th factor (VEGF) gene and carotid atherosclerosis in Chinese Han population in Shandong, China. Methods A total of 384 subjects aged 45-85 in Chinese Han population in Shandong, China w ere enroled. They were divided into either an increased intima-media thickness (IMT) group ( n=248) or a control group (n=136) according to the vascular ultrasound results. The baseline clinical data, such as the demographic data, vascular risk factors, and blood biochemical indicators in both groups were colected. Polymerase chain reaction w as used to detect the VEGF gene -2578C>A polymorphism genotype and alele. Multivariate logistic regression analysis was used to identify the independent risk factors for increased carotid IMT. Results The proportions of hypertension ( 70.6%vs.59.6%;χ2 =4.793, P=0.032), diabetes (18.4%vs.29.0%; χ2 =5.281, P=0.027), hyperlipidemia ( 45.2%vs.33.1%; χ2 =7.883, P=0.006), previous previous stroke or transient ischemic attack (29.0%vs.16.9%;χ2 =6.294, P=0.009), smoking (35.9%vs.19.9%;χ2 =10.708, P=0.001), as w el as total cholesterol ( 4.82 ±1.25 mmol/L vs.4.57 ± 0.94 mmol/L; t= -2.072, P= 0.039 ), triglyceride ( median, interquartile range; 1.71[0.84-2.22] mmol/L vs.1.53[1.08-2.59] mmol/L;Z= -2.560 P=0.010), low-density lipoprotein cholesterol (2.86 ±1.01 mmol/L vs.2.64 ±0.85 mmol/L; t= -2.407, P= 0.033 ), and high-density lipoprotein cholesterol (1.58 ±0.72 mmol/L vs.1.43 ±0.46 mmol/L;t= -2.183, P=0.030) in the increased IMT group, and there w ere significant differences compared w ith the control group. There w as significant difference in genotype frequency betw een the 2 groups (χ2 =10.131; P=0.006). There w as significant difference in C alele frequency between the increased IMT group and the control group (78.2% vs. 70.2%;χ2 =6.068, P=0.014). Multivariate logistic regression analysis showed that CC genotype (odds ratio 1.132, 95%confidence interval 1.021-2.141;P=0.029) w as an independent risk factor for increased carotid IMT. In 248 patients w ith increased IMT, 213 had at least 1 plaque, 76 (39.6%) of them w ere 1-2, 107 (43.15%) w ere 3-4, and 30 (12.1%) w ere 5-8 in plaque index. There w ere no significant differences in frequencies of genotypes (χ2 =6.766, P=0.149) and alele (χ2 =0.185, P=0.667) in the different plaque index groups. Conclusions -2578 single nucleotide polymorphism in the VEGF gene promoter is associated w ith carotid atherosclerosis, and C al ele may be its genetic susceptibility factor in Chinese Han population in Shandong, China.

Objective To investigate microvascular injury-related factors post-percutaneous coronary intervention (PCI). Methods Seventy-two elderly patients with stable angina , who underwent PCI from February 2009 to February 2014, were enrolled in this study. The index of microvascular resistance (IMR) was assessed and the clinical data were collected. The correlation between general clinical data and the IMR value before and after PCI were analyzed, and regression analysis was conducted on the relevant factors with postoperative microcirculation after PCI. Results After PCI, FFR, CFR, CK-MB, troponin were higher than those before PCI, with significant differences (P < 0.05). Linear regression analysis result showed that glycated hemoglobin, the degree of stenosis after PCI were positively correlated with IMR, but ejection fraction and CFR before PCI were negatively correlated with IMR. Conclusion Clinically, diabetes, severe vascular stenosis, low ejection fraction, low CFR before PCI in patients with unstable angina may likely occur microcirculation after PCI.

Objective To explore the related risk factors for bypass graft occlusion in patients within 1 year after coronary artery bypass grafting,in order to provide the basis for the prevention of postoperative bypass graft occlusion.Methods Clinical data of 197 cases treated with coronary artery bypass grafting were collected,and the incidence rate of bypass graft occlusion and its related risk factors were analyzed.Results Graft occlusion occurred in 28 (14.2％) of 197 patients.The incidence rate of bypass graft occlusion were much higher in patients with BMI ≥24 kg/m2,smoking,hypertension,hyperlipemia,diabetes,peripheral vascular diseases and cerebrovascular disease than in patients with BMI ＜24 kg/m2,non-smoking,patients without hypertension,hyperlipemia,diabetes,peripheral vascular diseases or cerebrovascular disease (20.0％ vs.9.8％,22.4％ vs.10.8％,21.2％ vs.3.8％,31.1％ vs.9.2％,23.4％ vs.9.8％,25.5％ vs.10.7％,26.3％ vs.11.3％,x2 =4.106,4.534,11.735,13.658,6.615,6.486,5.656,respectively,P=0.043,0.033,0.001,＜0.001,0.010,0.011,0.017).Smoking,diabetes,hyperlipidemia,peripheral vascular diseases and cerebrovascular disease were the independent risk factors for bypass graft occlusion.Conclusions Many risk factors are related with short-term postoperative bypass graft occlusion in patients with coronary artery bypass grafting.The corresponding control measures should be conducted to decrease the risk of postoperative bypass graft occlusion,aiming directly at the risk factors,especially the independent risk factors.

Objective To investigate the chemical constituents in Desmodium blandum and their antitumor bioactivity.Methods Various chromatographic techniques were employed for the isolation and purification of the constituents by butanol at 50 ℃ including silica gel, Sephadex LH-20.The compounds structures were elucidated by spectral analyses(IR,UV,NMR,and MS).Then their cytotoxic activity was studied.Results They were identified as N,N-dimethyltryptamine (Ⅰ),5-methoxy-N,N-dimethyltryptamine(Ⅱ),citrusinol(Ⅲ),yukovanol(Ⅳ),(Z)-1-(4-hydroxy-2,3-dimethoxyphenyl)-3-(4-hydroxyphenyl) propene(Ⅴ),(Z)-1-(3-hydroxy-2,4-dimethoxy phenyl)-3-(4-hydroxy-3-methoxy-phenyl) propene(Ⅵ),methyl protocatechuate(Ⅶ),katuranin(Ⅷ).Conclusion Eight compounds are isolated from the stems of D.blandum for the first time.In the MTT antitumor experiments,compounds Ⅰ and Ⅲ—Ⅵ have the cytotoxic activity to KB cell.

0.05).Compared with control group, cell inhibition rate significantly increased in rhGH+L-OHP group (63.2% vs. 50.8%,P

Adolescent ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; administration & dosage ; Cyclophosphamide ; administration & dosage ; Diagnosis, Differential ; Doxorubicin ; administration & dosage ; Female ; Hodgkin Disease ; pathology ; Humans ; Lung Neoplasms ; pathology ; Lymphoma, B-Cell ; drug therapy ; pathology ; surgery ; Male ; Mediastinal Neoplasms ; drug therapy ; pathology ; surgery ; Mediastinum ; surgery ; Neoplasm Invasiveness ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; pathology ; Prednisone ; administration & dosage ; Thymoma ; pathology ; Thymus Neoplasms ; pathology ; Vincristine ; administration & dosage

OBJECTIVETo investigate whether myocardial bridging (MB) is independently associated with coronary atherosclerosis proximal to MB in the left anterior descending coronary artery (LAD) identified by computed tomographic coronary angiography (CCTA).

METHODSFrom March 2011 to December 2012, patients (n=9 862) with suspected coronary disease underwent CCTA using dual-source CT scanner. The baseline clinical characteristics (age, gender, smoking history, presence of hypertension, dyslipidemia, diabetes mellitus, family history of heart attack, and body mass index) and the results of CCTA were reviewed. Two radiologists evaluated the coronary artery for MB and coronary atherosclerosis stenosis (CAS) in LAD and made a diagnosis by consensus. Significant independent risk factors for CAS were investigated by multivariate logistic regression analysis.

RESULTSA total of 3 182 (32.3%) cases of MB and 3 359 cases of CAS of LAD were identified. No patient with CAS in the tunneled segment was found. The mean length of bridges and the mean thickness of the overlying myocardium was (17.3±5.2) mm and (1.2±0.9) mm, respectively. There were 1658 MB cases in 3 359 cases of LAD stenosis and 1 524 MB cases in 6 503 cases of no LAD stenosis (χ(2)=681.12, P<0.05). Logistic regression analysis showed that MB in the LAD were significantly associated with CAS in the proximal LAD (OR=3.07, 95%CI=2.81-3.37, P<0.001), and after final adjustment for age, gender, body mass index, family history of heart attack, smoking, hypertension, dyslipidemia, diabetes mellitus, and resting heart rate (OR=2.86, 95% CI=2.60-3.16, P < 0.001).

CONCLUSIONMB in the LAD is independently associated with CAS in the proximal segment to MB.

Adult ; Aged ; Aged, 80 and over ; Coronary Stenosis ; complications ; diagnostic imaging ; Female ; Humans ; Logistic Models ; Male ; Middle Aged ; Myocardial Bridging ; complications ; diagnostic imaging ; Risk Factors ; Tomography, X-Ray Computed