Figure 2.

Summary of the inherited disorders of carbohydrate metabolism associated to cardiac manifestations, contextualized with the main carbohydrate metabolic pathways in cardiac cells. Abbreviations: CDG, congenital disorder of glycosylation; ECM, extracellular matrix (yellow); ER, endoplasmic reticulum (orange); GA, Golgi apparatus (red); GSD, glycogen storage disorder; MT, mitochondrion (green). Other symbols: fucose molecules, red triangles; galactose molecules, yellow circles; glucose molecules, blue circles; GlcNAc molecules, blue squares; mannose molecules, green circles; sialic acid molecules, purple diamonds; transporters, grey ovals; cell nucleus colored in purple; cytoplasm colored in pink.