Lipide-afgeleide verbindingen in het menselijk lichaam

Lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, play an important role in human physiology.

Among fat-soluble vitamins, vitamin A or retinol is converted in the retina to retinal — part of a photoreceptor pigment essential for normal vision. In contrast, vitamin K is critical for proper blood clotting.

Membrane phospholipids are hydrolyzed by an enzyme phospholipase A2 producing arachidonic acid that acts as a precursor to prostaglandins, thromboxanes, and leukotrienes— all grouped under a class of hormones called eicosanoids.

Eicosanoids are involved in various physiological processes, including mucus production in the stomach and blood pressure regulation.

Additionally, lipoproteins are complexes made up of lipids and proteins. They aid the transport of dietary lipids to the liver through the bloodstream.

Similarly, glycolipids are complexes between carbohydrate residues and lipids attached via a glycosidic bond. These are located in the outer leaflet of the plasma membrane and play a vital role in membrane stability. They also facilitate cell-cell interaction during immune and signaling processes.