智能电动SUV博郡iV6、iV7

4月11日,博郡汽车的首届品牌之夜登陆上海世博创意秀场,与此同时博郡iV6、iV7全球首秀,博郡汽车率先推出完全自主正向研发的三大原生电动车平台。博郡汽车这个名字听起来有些陌生,它成立于2016年,将自主可控技术作为企业的核心重点。博郡汽车自主正向研发的i-SP、i-MP、i-LP三大原生电动车平台,就是他们初次交出的答卷。高度的柔性和可扩展性,是其主要特点,未来将衍生出数十款车型,覆盖A、B、C三大主流细分市场。其中,i-SP平台产品面向年轻客户群体, i-MP平台产品名定位运动与科技, i-LP平台为旗舰高端平台。此次,博郡推出的iV6与iV7分别来自i-MP平台与i-LP平台。

智能电动SUV博郡iV6、iV7全球首秀

博郡汽车智能电动SUV博郡iV6、iV7同时全球首秀,不仅展示了博郡汽车领先的自主正向研发实力,也展现出致力于'成为用户值得信赖的出行伙伴'的美好愿景,博郡汽车将以智能电动汽车为载体,陪伴用户探索、远行和成长,诠释中国中高端纯电动汽车品牌的新内涵。

2-(3,5-二甲氧基苯甲撑基)-环戊酮的合成及其抗感染与抗肿瘤活性的研究

目的:研究2-(3,5-二甲氧基苯甲撑基)-环戊酮(IV)的合成方法及其对抗炎和抗肿瘤活性的影响。方法:环7戊酮与吗啡啉脱水反应得到烯胺,然后与3,5-二甲氧基苯甲醛进行缩合反应,生成目标化合物IV7。采用人胆囊收缩素/缩胆囊素八肽(CCK-8)法评价IV7对Hela细胞株增殖的影响;应用二甲苯致小鼠耳肿胀模型评价IV7的抗炎活性。结果:IV7与阴性对照药CMC-Na组相比,抗炎活性的差异有统计学意义(P<0.05)。IV7抑制Hela细胞增殖的作用较弱,在培养48h时IC50为76.0靘ol/L。结论:IV7具有较好的抗炎活性。

Pre-hepatectomy type Ⅳ collagen 7S predicts post-hepatectomy liver failure and recovery

BACKGROUND Liver resection is an effective treatment for benign and malignant liver tumors.However,a method for preoperative evaluation of hepatic reserve has not yet been established.Previously reported assessments of preoperative hepatic reserve focused only on liver failure in the early postoperative period and did not consider the long-term recovery of hepatic reserve.When determining eligibility for hepatectomy,the underlying pathophysiology needs to be considered to determine if the functional hepatic reserve can withstand both surgery and any postoperative therapy.AIM To identify pre-hepatectomy factors associated with both early postoperative liver failure and long-term postoperative liver function recovery.METHODS This study was a retrospective cohort study.We retrospectively investigated 215 patients who underwent hepatectomy at our hospital between May 2013 and December 2016.Early post-hepatectomy liver failure(PHLF)was defined using the International Study Group of Liver Surgery’s definition of PHLF.Long-term postoperative recovery of liver function was defined as the time taken for serum total bilirubin and albumin levels to return to levels of<2 mg/dL and>2.8 g/dL,respectively,and the time taken for Child-Pugh score to return to Child-Pugh class A.RESULTS Preoperative type IV collagen 7S was identified as a significant independent factor associated with both PHLF and postoperative long-term recovery of liver function.Further analysis revealed that the time taken for the recovery of Child-Pugh scores and serum total bilirubin and albumin levels was significantly shorter in patients with type IV collagen 7S≤6 ng/mL than in those with type IV collagen 7S>6 ng/mL.In additional analyses,similar results were observed in patients without chronic viral hepatitis associated with fibrosis.CONCLUSION Preoperative type IV collagen 7S is a preoperative predictor of PHLF and longterm postoperative liver function recovery.It can also be used in patients without chronic hepatitis virus.

Combination of type Ⅳ collagen 7S, albumin concentrations, and platelet count predicts prognosis of non-alcoholic fatty liver disease

BACKGROUND Non-alcoholic fatty liver disease(NAFLD)is the most common cause of chronic liver disease and affects approximately 25%of the general global adult population.The prognosis of NAFLD patients with advanced liver fibrosis is known to be poor.It is difficult to assess disease progression in all patients with NAFLD;thus,it is necessary to identify patients who will show poor prognosis.AIM To investigate the efficacy of non-invasive biomarkers for predicting disease progression in patients with NAFLD.METHODS We investigated biomarkers associated with mortality in patients with NAFLD who visited the Kawasaki Medical School General Medical Center from 1996 to 2018 and underwent liver biopsy and had been followed-up for>1 year.Cumulative overall mortality and liver-related events during follow-up were calculated using the Kaplan-Meier analysis and compared using log-rank testing.We calculated the odds ratio and performed receiver operating characteristic curve analysis with logistic regression analysis to determine the optimal cut-off value with the highest prognostic ability.RESULTS We enrolled 489 patients who were followed-up for a period of 1-22.2 years.In total,13 patients died(2.7%of total patients enrolled);7 patients died due to liverrelated causes.Poor prognosis was associated with liver fibrosis on histological examination but not with inflammation or steatosis.Blood biomarkers associated with mortality were platelet counts,albumin levels,and type IV collagen 7S levels.The optimal cutoff index for predicting total mortality was a platelet count of 15×10^(4)/μL,albumin level of 3.5 g/dL,and type IV collagen 7S level of 5 mg/dL.In particular,only one-factor patients with NAFLD presenting with platelet counts≤15×10^(4)/μL,albumin levels≤3.5 g/dL,or type IV collagen 7S≥5 mg/dL showed 5-year,10-year,and 15-year survival rates of 99.7%,98.3%,and 94%,respectively.However,patients with two factors had lower 5-year and 10-year survival rates of 98%and 43%,respectively.Similarly,patients with all three factors showed the lowest 5-year and 10-year survival rates of 53%and 26%,respectively.CONCLUSION A combination of the three non-invasive biomarkers is a useful predictor of NAFLD prognosis and can help identify patients with NAFLD who are at a high risk of all-cause mortality.

新疆地区汉族和维吾尔族耳聋基因突变的比较研究

目的:分析中国新疆地区汉族和维吾尔族耳聋患者的常见耳聋基因突变,为该地区耳聋患者的临床基因诊断提供理论依据。方法:调查对象为新疆地区乌鲁木齐和库尔勒特教学校的125例耳聋患者,其中汉族64例,维吾尔族61例,听力检查全部为重度-极重度感音神经性聋。所有受检者均采集外周血并提取DNA,进行GJB2全序列、包含SLC26A4IVS7-2A>G、线粒体DNA12SrRNA1494和1555位点的突变分析。结果:新疆地区汉族耳聋患者GJB235delG和SLC26A4IVS7-2的等位基因频率分别为7.4%和10.1%,维吾尔族耳聋人群未发现GJB235delG和SLC26A4IVS7-2突变,两者比较差异有统计学意义。而GJB2235delC、299-300delAT及线粒体DNAA1555G、C1494T维吾尔族和汉族比较差异无统计学意义。结论:新疆地区汉族和维吾尔族GJB235delG和SLC26A4IVS7-2A>G有不同的等位基因频率,新疆地区汉族和维吾尔族常见耳聋基因突变存在异同。