Abstract
Summary
A study of the aortas of 44 female rabbits in 2 age groups (3 mos. and 46 mos.) corresponding approximately to human childhood and middleage, indicates elevation of the water, sodium, calcium, non-lipid phosphorus, and possibly of the cholesterol content of the vessel wall in the older group. The potassium content remains relatively constant. The generally lower levels of total lipid and of cholesterol in the rabbit aorta compared with that of man probably account at least in part for the freedom of the former from spontaneous atherosclerosis.
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