Protocol for myelin sheath. Luxol Fast Blue is the alcohol soluble counterpart of the water soluble Alcian Blue. Staining is due to lipoproteins, and the mechanism is one of an acid-base reaction with salt formation; the base of the lipoprotein replaces the base of the dye. - [Read Staining for Myelin Sheath Protocol]
In the routine method described in this protocol, chylomicron-free plasma is adjusted to 12% (w/v) iodixanol and the sample, essentially fills an approx 3 ml tube for a near-vertical rotor. During the centrifugation VLDL, LDL and HDL particles and also plasma proteins migrate from all parts of the sample to their final buoyant density banding position in the self-forming density gradient. - [Read Subfractionation of Low-Density Lipoprotein (LDL)]