[Apolipoproteins. Structure, function and pathological changes].

The principal facts known about the main apolipoproteins (A, B, C, E) are reviewed. Their structure and role in the metabolism of lipoproteins are described. Recent studies have shown structural abnormalities or metabolic changes in some apolipoproteins usually leading to hyper or hypo-lipoproteinaemia. The practical implications of apolipoproteins at the present state of our techniques are indicated.