Non-hydroxy-dihydro-sphingosine
Details
About the structure and biological function of NdS
Structure. Non-hydroxy-dihydro-sphingosines (CER[NDS], or NdS) are a type of sphinganines, a subclass of ceramides. Their structure consists of a sphingoid base, specifically dihydrosphingosine, and a fatty acid, which is a non-hydroxy fatty acid. The fatty acid can be of variable length, hydroxylated, and contain double bonds.
NdS lipids are found in skin. On a subcellular level, they are enriched in the extracellular lipid matrix of the stratum corneum.
Function. Non-hydroxy-dihydrosphingosines are mostly important to human skin where they serve structural and signaling roles. NdS ceramides are involved in the formation of the epidermal barrier to protect against the environment and prevent trans-epidermal water loss. Aberrations of skin ceramide levels can contribute or lead to skin conditions. Reduced levels of NdS ceramides are linked to psoriasis. Further, a fish-rich diet decreases NdS lipids in the liver but elevates them in the brain.
Related research
Moisturizer Research
Skin biology is central to develop reliable moisturizers, but molecular analysis of the skin has been lacking.
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NdS lipidomics analysis with
Lipotype
| Structural details | subspecies level |
| Variants identified | > 250 |
| Method | mass spectrometry (untargeted) |
| Quantification | yes |
| Delivery time | 3-6 weeks |
| Lipidomics data | pmol & mol% |
| Figures | included |
TAG, DAG, Chol, CE, NdS, NS, NP, NH, AdS, AS, AP, AH, EOdS, EOS, EOP, EOH
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