No, they are the same
Explanation:
Exogenous Way
Through the diet we provide the body with various lipid particles (TG, cholesterol, phospholipids). The action of different digestive enzymes next to bile salts, forces intestinal mechanics (peristalsis), and the ionizing effect of pH, complete the digestion process of most lipids, transforming them into micelles capable of crossing the membrane of the enterocito. Once absorbed, a process of re-esterification of the different lipid particles, while synthesizing a series of proteins (apoproteins) that are incorporate lipids constituting lipoproteins, form of transport of most blood lipids. Is about spherical particles whose nucleus consists of hydrophobic lipids (esterified cholesterol, triglycerides), surrounded by lipids polar (phospholipids, free cholesterol). In the bark they are located apoproteins that facilitate plasma solubility while they act as recognition signals for the transport of lipids to different tissues, activating or inhibiting key enzymes that regulate lipoprotein metabolism apoproteins that facilitate plasma solubility while they act as recognition signals for the transport of lipids to different tissues, activating or inhibiting key enzymes that regulate lipoprote metabolism.
Endogenous Way
The liver synthesizes them directly or from circulating lipoproteins (remnants of QM). The apoprotein that characterizes them is BIOO. These lipoproteins are rapidly degraded by lipases similar to those of the QM losing a large amount of TG and surface apoproteins, transforming into IDL intermediate density lipoproteins (30% cholesterol, 40% TG)
They can be picked up by the liver, which will extract your cholesterol to make more VLDL and for other cell needs liver, or may remain in circulation longer until they lose apo E and become LDL.
HDL are synthesized in the liver and intestine initially with a discoidal form, containing non-esterified cholesterol, phospholipids and apoproteins, mainly apo A (Al and A2). These nascent HDLs take cholesterol from the tissues (interchangeable with be more superficial) transforming into spherical particles.
