MRC1 and aneurysm: Also, when testing for cell subsets, ruptured and non-ruptured aneurysms exhibited similar numbers of CD68+CD206− M1 and CD68+CD206+ M2 macrophages (p=0.206), CD3+CD8+ cytotoxic T cells (p=0.329), CD3+CD8−FoxP3+ regulatory T cells (p=0.206), and CD3+CD45RO+ memory T cells (p=0.176).