NR4A3 and abdominal aortic aneurysm: The NR4A3 subfamily member NOR1 is highly expressed in human abdominal aortic aneurysm tissues [7] and has been implicated previously in proliferation of myeloid progenitor cells [8, 9], recruitment of monocytes to sites of inflammation [10], transcription of inflammatory gene expression [11, 12], and macrophage apoptosis [13].