本刊编委,北京协和医学院、中国医学科学院微循环研究所、国家卫计委微循环重点实验室仉红刚教授课题组于2014年在《International Journal of Cardiology》（IF=6.175）以＂CD144＋EMPs/CD62E＋EMPs：A couple of new biomarkers to monitor endothelial function in hypertension with hyperlipidemia involved＂为题报道了对临床高血压伴高血脂患者进行的内皮细胞来源微泡研究结果,主要内容如下：
The shape equation of lipid membranes is a fourth-order partial differential equation.Under the axisymmetric condi-tion,this equation was transformed into a second-order ordinary differential equation(ODE)by Zheng and Liu(Phys.Rev.E 482856(1993)).Here we try to further reduce this second-order ODE to a first-order ODE.First,we invert the usual process of variational calculus,that is,we construct a Lagrangian for which the ODE is the corresponding Euler-Lagrange equation.Then,we seek symmetries of this Lagrangian according to the Noether theorem.Under a certain restriction on Lie groups of the shape equation,we find that the first integral only exists when the shape equation is identical to the Will-more equation,in which case the symmetry leading to the first integral is scale invariance.We also obtain the mechanical interpretation of the first integral by using the membrane stress tensor.
