Table 1.

HDL subspecies depending on analytical preparation.

Procedure	Categories
Ultracentrifugation (Densities in g/mL)	HDL2b (1.063 to 1.090)		HDL2a (1.090 to 1.120)		HDL3a (1.120 to 1.150)		HDL3b (1.150 to 1.180)	HDL3c (1.180 to 1.210)
Electrophoretic mobility	preβ-1	preβ-2	α-1	α-2	α-3	preα-1	preα-2	preα-3c
Nuclear magnetic resonance	26 subtypes
Immune affinity	Lipoparticles containing: APOA1, APOA2, APOA4, APOD, APOE, APOF, APOH, APOJ, APOM, APOA1-APOA2, APOA1-APOA2-APOA4……

Results from four common analytical methods revealing the heterogeneity of HDL lipoparticles, and reflected categories from one method do not necessarily correspond to another. Adapted from [4,5].