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Ceramides
barrera-de-permeabilidad-y-antimicrobiana-piel, References -…
Ceramides
Ceramides are lipids that are found naturally in high concentrations in the uppermost layers of skin.
Lipids are a family of organic compounds that naturally occur and are commonly known as oils and fats.
These organic compounds are nonpolar molecules, which means that they are soluble only in nonpolar solvents and insoluble in water because water is a polar molecule.
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Ceramides play a key function in structuring and preserving the skin water permeability barrier. Ceramide along with cholesterol and saturated fatty acids creates a water-impermeable barrier that prevents excessive water loss due to evaporation and entrance of microorganisms.
Lipids have a chemical composition mainly of carbon, hydrogen, and oxygen, and have mostly nonpolar carbon–carbon or carbon–hydrogen bonds.
Lipids perform three primary biological functions within the body: they serve as structural components of cell membranes, function as energy storehouses, and function as important signaling molecules.
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On the other hand ceramides are a structurally complicated and heterogeneous group of sphingolipids including subsidiary products of sphingosine bases in amide linkage with a variety of fatty acids.
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