Figure 2.

Staining for elastic fibers in cross-sections of transplanted aorta using Verhoeff-van Gieson's stain. The graft was harvested at day 50 following transplantation across (A) syngeneic (C57B1/10 → C57B1/10) and (B) allogeneic (C57B1/10 → C3H) mouse strain combinations. Whilst no morphological changes were evident in aorta obtained from syngeneic recipients (A), those harvested from allogeneic hosts (B) had evidence of intimal thickening and luminal narrowing. White arrows: Internal elastic limiting membrane. Black arrows: Thickened intima. Magnification ×100.