Five-year clinical outcomes of the first Korean-made sirolimus-eluting coronary stent with abluminal biodegradable polymer

This study evaluated the 5-year clinical outcomes of the Genoss DES, the first Korean-made sirolimus-eluting coronary stent with abluminal biodegradable polymer.We previously conducted the first-in-patient prospective, multicenter, randomized trial with a 1:1 ratio of patients using the Genoss DES and Promus Element stents; the angiographic and clinical outcomes of the Genoss DES stent were comparable to those of the Promus Element stent. The primary endpoint was major adverse cardiac events (MACE), which was a composite of death, myocardial infarction (MI), and target lesion revascularization (TLR) at 5 years.We enrolled 38 patients in the Genoss DES group and 39 in the Promus Element group. Thirty-eight patients (100%) from the Genoss DES group and 38 (97.4%) from the Promus Element group were followed up at 5 years. The rates of MACE (5.3% vs 12.8%, P = .431), death (5.3% vs 10.3%, P = .675), TLR (2.6% vs 2.6%, P = 1.000), and target vessel revascularization (TVR) (7.9% vs 2.6%, P = .358) at 5 years did not differ significantly between the groups. No TLR or target vessel revascularization was reported from years 1 to 5 after the index procedure, and no MI or stent thrombosis occurred in either group during 5 years.The biodegradable polymer Genoss DES and durable polymer Promus Element stents showed comparable low rates of MACE at the 5-year clinical follow-up.     

Genomic Analysis Reveals the Prognostic and Immunotherapeutic Response Characteristics of Ferroptosis in Lung Squamous Cell Carcinoma

Lung - Recent studies have reported that ferroptosis is an iron-dependent cell death process and is a potential therapeutic target in various tumours. The purpose of this study was to establish a...     

Comparison of biodegradable and newer generation durable polymer drug-eluting stents with short-term dual antiplatelet therapy: a systematic review and Bayesian network meta-analysis of randomized trials comprising of 43,875 patients

Journal of Thrombosis and Thrombolysis - Newer generation durable polymer drug-eluting stents (DP-DES) and biodegradable polymer DES (BP-DES) have similar efficacy with dual-antiplatelet therapy...     

Adverse consequences of immediate thrombolysis-related complications: a multi-centre registry-based cohort study of acute stroke

Journal of Thrombosis and Thrombolysis - Complications following thrombolysis for stroke are well documented, and mostly concentrated on haemorrhage. However, the consequences of patients who...     

Development of Diagnostic Reference Levels Using a Real-Time Radiation Dose Monitoring System at a Cardiovascular Center in Korea

Digital cardiovascular angiography accounts for a major portion of the radiation dose among the examinations performed at cardiovascular centres. However, dose-related information is neither monitored nor recorded systemically. This report concerns the construction of a radiation dose monitoring system based on digital imaging and communications in medicine (DICOM) data and its use at the cardiovascular centre of the University Hospitals in Korea. The dose information was analysed according to DICOM standards for a series of procedures, and the formulation of diagnostic reference levels (DRLs) at our cardiovascular centre represents the first of its kind in Korea. We determined a dose area product (DAP) DRL for coronary angiography of 75.6 Gy cm² and a fluoroscopic time DRL of 318.0 s. The DAP DRL for percutaneous transluminal coronary intervention was 213.3 Gy cm², and the DRL for fluoroscopic time was 1207.5 s.     

Soybean allergen glycinin induced the destruction of the mechanical barrier function in IPEC-J2

Humans and animals suffer a health threat to soybean allergy. The impaired mechanism of the intestinal barrier by food/feed allergen glycinin has not been clear. The effects of epithelial metabolic activity, permeability, integrity, and the tight junction (TJ) expression induced by glycinin were conducted using porcine intestinal epithelial cells (IPEC-J2) model in this study. The results showed the decreased metabolic activity (R² = 0.964, p < 0.001) and the increased alkaline phosphatase activity (R² = 0.528, p = 0.002) linearly correlated with glycinin levels (0–4 mg/mL). The trans-epithelial electrical resistance values declined stimulated by 4 mg/mL glycinin treatment in a time-dependent manner (0, 6, 12, or 24 h, p = 0.018), and also descended after 12 or 24 h glycinin treatment in dose-dependence (0, 0.5, 1, 2, or 4 mg/mL, p < 0.001). The glycinin-induced TJ expression of claudin-3, occludin, and ZO-1 were reduced (p < 0.05).     

活血降脂方对小鼠脂肪肝的防治作用

目的:探讨活血降脂方对小鼠脂肪肝的防治作用及机制。方法:高脂饲料喂养小鼠,分别用不同剂量的活血降脂方(由人参、三七、天麻组成,命名为GST)给小鼠灌胃2周,检测血脂、肝组织甘油三酯(TG)含量,并观察肝指数和肝脏病理变化,筛选出药物的最佳用药剂量。此外,小鼠分为正常对照(NC)组,喂基础饲料;模型组喂高脂饲料。12周后将模型小鼠随机分为高脂(HF)组,正常饮食(ND)组和GST组。除HF组饲高脂饲料外,其余各组饲基础饲料;GST组给予GST灌胃2周,其余各组以同等容积蒸馏水灌胃。检测血清总胆固醇(TC)、TG、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)及肝组织TC、TG含量,观察肝指数、肝组织超氧化物歧化酶(SOD)活性、丙二醛(MDA)含量,肝组织病理变化及过氧化物酶体增殖物激活受体α(PPARα)、细胞色素P450 2E1(CYP2E1)的mRNA表达。结果:GST可显著降低血脂、肝脂和MDA水平,增加SOD活性,明显降低肝指数并改善肝组织脂肪变性,增加肝组织PPARαmRNA表达、抑制CYP2E1 mRNA的表达。结论:GST具有有效防治脂肪肝的作用,其机制可能与上调肝组织PPARαmRNA的表达、降低血清和肝组织TG含量、下调CYP2E1 mRNA的表达以及抗脂质过氧化反应有关。     

大鼠局灶性脑缺血再灌注后皮质神经元微血管构筑和血脑屏障的变化及丁苯酞的保护作用

目的:观察大鼠脑缺血再灌注损伤后皮质微血管的变化,探讨丁苯酞对其作用。方法:线栓法制备大鼠脑缺血再灌注模型;单宁酸-氯化铁媒染法显示大脑皮质微血管,Mivnt图像分析系统定量分析微血管密度(MVD)和微血管面积密度(MVA);十湿重法检测脑含水量,透射电镜观察血脑屏障超微结构。结果:与假手术组相比,缺血再灌注组大鼠皮质微血管绝大部分闭合或僵直,MVD和MVA显著下降,脑含水量明显升高,电镜观察微血管腔狭窄,内皮细胞核固缩。丁苯酞组微血管形态好转,MVD和MVA升高,脑水肿和血脑屏障损伤程度均减轻。结论:丁苯酞可改善大鼠脑皮质微血管形态,减轻脑水肿和血脑屏障损伤,对脑缺血再灌注损伤有一定的预防性保护作用。