锦衣卫

一 |     Breakthrough new research could significantly increase supply of organs for people with rarer blood types waiting for a transplant, reported The Guardian.,A team of scientists from the University of Cambridge have successfully altered the blood type of three donor kidneys. By flushing blood infused with a special enzyme through a human kidney the scientists removed the blood type markers lining the blood vessels of the organ.,The procedure required using a device that is connected with a donor’s kidney to pass oxygenated blood through it - a normothermic perfusion machine. As a result, the organ was converted to type O, considered the universal donor.,Blood Group Compatible,As the blood type of a donor must be compatible with the recipient’s, the new development could increase the supply of kidneys available for transplant.,A kidney from someone with blood type A cannot be transplanted to someone with blood type B, or visa versa. In such a case, the receiving body’s immune system would reject the new organ, interpreting the different blood type as foreign.,So changing the blood type to the universal O would mean the donor organ could be used for people with any blood type.,“Our confidence was really boosted after we applied the enzyme to a piece of human kidney tissue and saw very quickly that the antigens were removed. After this, we knew that the process is feasible, and we just had to scale up the project to apply the enzyme to full-size human kidneys,” Serena MacMillan, a PhD student at the University of Cambridge, said.,Scientists involved in the research, funded by charity Kidney Research UK and due to be published in the British Journal of Surgery, clarified that the outcome might have particular implications for minority ethnic groups.,Science & TechGood News for ABs: Scientists Can Now Change People's Blood Type21 February, 16:34 GMT,Some blood groups such as O Rh positive and B Rh positive are more prevalent among black, Asian and minority ethnic communities. To complicate matters further, some rare blood types are only found within the black, Asian and minority ethnic communities,This typically places them at a disadvantage, as they struggle to find a match. With low donation rates from these populations, stressed the researchers, sometimes such patients wait for as long as over a year for a compatible donor. They cited figures from 2020-21 showing that just over 9% of total organ donations in the UK came from black and minority ethnic donors. On the other hand, black and minority ethnic patients make up 33% of the kidney transplant waiting list.,“It’s very exciting to think about how this could potentially impact so many lives,” added Serena MacMillan.,The “potentially gamechanging” research was applauded by Dr Aisling McMahon, the executive director of research at Kidney Research UK.,The scientists will now test the reintroduction of other blood types and observe how the novel approach in clinical settings.。    8月24日消息，据报道，梅赛德斯-AMG CLA 45彻底告别燃油发动机，以三电机系统取而代之。为了保留传统AMG的驾驶氛围，新车加入了AMG Force S+专属驾驶模式，号称只需轻触操作就能获得“内燃机般的激情”。     开启该模式后，车辆会模拟四缸发动机声浪和换挡动作，配合座椅震动机构，让纯电CLA 45尽可能呈现出燃油高性能车的驾驶感受。         奔驰CEO康林松近日接受采访时，给出了极为大胆的评价：“这就是我开过最好的V8，它拥有V8的全部感觉，但动力和扭矩更强。第一次开过新车后，我就像一个重生的基督徒。”     新车的三电机系统可持续输出612马力（450kW），与此前搭载4.0L双涡轮增压V8发动机的E63持平，弹射模式下峰值输出可达680马力（500kW），综合峰值扭矩1759N·m，零百加速2.7秒。    该车于2026年7月9日在古德伍德速度节正式首发，提供四门轿跑和猎装版两种车身选项。    基于奔驰新世代MMA平台打造，搭载三台AMG轴向磁通电机，前轴1台后轴2台，前轴电机具备Booster智慧增压功能，可依行驶状态自动分离或瞬间接合，兼顾效率与性能。    电池方面，CLA 45搭载94kWh电池，全系标配800V高压平台，支持330kW直流快充，10%至80%充电仅需22分钟，充电10分钟可补充270km续航。    WLTP工况下，四门轿跑版综合续航670km，猎装版640km。标准状态下最高车速250km/h，选装AMG Dynamic Plus套件后极速可达270km/h。     操控方面，CLA 45配备AMG Performance 4MATIC+电控四驱系统、自适应可调阻尼悬架和后轮转向系统。    8月11日，纯电AMG CLA 45以7分32秒070刷新纽北四门轿车圈速纪录，用赛道成绩证明了纯电AMG的性能实力。