Objective To compare the procedural difficulty index (PDI) and immediate outcome (IM) of percutaneous coronary intervention (PCI) in patients with various stages of myocardial infarction.Methods Ninety-four patients with myocardial infarction were divided into three groups, direct PCI(n=38), delayed PCI(n=22) and late PCI(n=34). The characteristics of infarct-related coronary artery, PDI and IM of PCI were evaluated angiographically, and severe procedural complications (SPC) and major adverse cardiac events (MACE) during hospitalstay were documented. Results In the three groups, PDI was 1.47 ?1.79, 1.82 ?1.72 and 2.85 ?2.83, respectively (P

Objective:To analyze the curative effect of tripterygium on NOD mice and the possible mechanisms.Methods:NOD mice were divided into 2 groups,Group A:tripterygium treatment(0.07 mg/kg,intraperitoneal injection,12 weeks);Group B:saline control.BALB/c mice were enrolled as control group( Group C).Results:After experiment,Group A had lower salivary flow rate than these of Group C,but higher than these of Group B at 12 and 20 weeks old( P<0.05).Group A had higher rate of inflammatory cells apoptosis than these of Group B and Group C(P<0.05).Group A mice had lower levels of TNF-α,IL-6 and IL-1βthan these of Group B(P<0.05),but higher than these of Group C(P<0.05).Group A mice had a higher level of SHIP-1 but a lower level of Mir-155 than these of Group B mice(P<0.05).Group A mice had a better neuroelectrophysiological outcomes than these of Group B mice ( P<0.05).Conclusion:Tripterygium can meliorate the sailoadentitis of NOD mice,which may though activating the SHIP-1/Mir-155 signaling pathway.

Objective To report our first clinical experience with a novel modified culotte technique for the treatment of true coronary bifurcation lesions. Methods The novel modified culotte technique (the mono-ring culotte) stenting was done in which the side branch (SB) stent was deployed firstly followed by ex vivo wiring of a most proximal cell of SB stent with the hard end of main branch (MB) wire. Secondly, the MB stent was deployed through the most proximal cell of SB stent. The procedure was ended with kissing balloon dilation. From June 2014 to March 2015, 15 patients with true coronary bifurcation lesion were treated with mono-ring culotte stenting in our center. Results The procedures were successful in all cases without procedural complication and in-hospital major adverse cardiovascular events. The procedural time was (34. 3 ± 9. 6) min, fluoroscopic time was (18. 1 ± 3. 8) min, and contrast volume was (112. 0 ± 24. 5) ml, respectively. Post-procedurally, the residual stenosis of the main and the side branch were (10. 0 ± 2. 5)% and (10. 2 ± 5. 3)% , respectively. Conclusions The mono-ring culotte stenting is safe and feasible for treatment of true coronary bifurcation lesions, and may be superior to the conventional culotte stenting.

Objective:To observe the effect of astragaloside Ⅳ on lysophosphatidic acid(LPA)- induced neurite retraction of N1E-115 cells and its potential mechanism.Methods:N1E-115 cells were divided into blank group, model group, the low, medium and high dose groups of astragaloside Ⅳ. The blank group and model group was not intervened by astragaloside; while the low, medium and high dose groups were treated with 20,40 and 80 μg/ml astragaloside Ⅳ for 24 h. Each group was cultured with serum-free medium for 12 h. The model group and astragaloside Ⅳ groups were intervened by 40 μmol/L LPA for 10 min. Each group was observed and photographed with the inverted microscope, and the number of neurites in N1E-115 cells was counted by Image J software. The fluorescence expression of recombinant ras homolog gene family member A (RhoA), rho associated coiledcoil protein kinase 2 (ROCK2), phospho-rho associated coiledcoil protein kinase 2 (p-ROCK2) and phospho-myosin light chain 2 (p-MLC2) proteins was detected by immunohistochemistry. Real-time fluorescent quantitative polymerase chain reaction was used to detect the mRNA expression levels of RhoA and ROCK2 ; the protein expression levels of RhoA, ROCK2, p-MLC2 and myosin light chain 2 (MLC2) were detected by Western blotting.Results:Compared with 20 μg/ml astragaloside Ⅳ group, the inhibition rate of neurite retraction in 40 and 80 μg/ml astragalosideⅣ groups increased ( P<0.05). Compared with model group, the average fluorescence intensity of RhoA, p-ROCK2, p-MLC2 in 20, 40, 80 μg/ml astragaloside Ⅳ groups and the ROCK2 average fluorescence intensity in 40 μg/ml astragaloside Ⅳ group were decreased ( P<0.05, P<0.01); the expression of RhoA mRNA (0.89±0.09, 0.41±0.01, 0.09±0.03 vs. 1.50±0.01) and ROCK2 mRNA (0.89±0.09, 0.14±0.01, 0.20±0.01 vs. 1.62±0.17) decreased in 20, 40, 80 μg/ml astragaloside Ⅳ groups ( P<0.05, P<0.01); the ROCK2 protein (0.75±0.06, 0.57±0.02, 0.66±0.01 vs. 1.08±0.02), p-MLC2 protein (1.72±0.03, 1.40±0.04, 1.29±0.03 vs. 2.19±0.11), MLC2 protein (1.13±0.02, 0.68±0.03, 0.75±0.03 vs. 1.60±0.03) in 20, 40, 80 μg/ml astragaloside Ⅳ groups and the RhoA protein (0.35±0.01, 0.40±0.03 vs. 0.57±0.08) in 20, 40 μg/ml astragaloside Ⅳ groups were decreased ( P<0.05, P<0.01). Conclusion:Astragaloside Ⅳ can prevent LPA-induced neurite retraction and promote damaged nerve regeneration. The mechanism may down-regulae the protein expression levels of RhoA, ROCK2, p-ROCK2, p-MLC2 and MLC2 in RhoA-ROCK2 signaling pathway, and inhibite nerve growth cone collapse.