引言胚胎在形成最初的心跳时，那些精密如瑞士钟表的心脏结构究竟是如何构建？传统理论认为，心肌层与心内膜层这两大心脏组织被300微米厚的"心胶质"永久隔绝，只能依靠飘散在基质中的信号分子隔空对话。但3月14日《Science》杂志的一项突破性研究“Tun ...

A new study in mice shows how the small GTPase Cdc42 influences bone modeling and remodeling—it modulates both the formation and function of osteoclasts, and is involved in the downstream ...