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Naturally occurring ω-Hydroxyacids.

P W Wertz1

  • 11412 Laurel Street, Iowa City, IA, 52242, USA.

International Journal of Cosmetic Science
|October 11, 2017
PubMed
Summary
This summary is machine-generated.

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This review surveys natural sources of omega-hydroxyacids (ω-hydroxyacids), fatty acids with a terminal hydroxyl group. These compounds are vital for permeability barriers, reducing water loss in mammals and plants.

Area of Science:

  • Biochemistry
  • Plant Science
  • Mammalian Biology

Background:

  • Omega-hydroxyacids (ω-hydroxyacids) are fatty acids with a terminal hydroxyl group.
  • They play crucial roles in biological systems, including forming permeability barriers to reduce water loss.
  • Derivatives of ω-hydroxyacids are also implicated in waterproofing and signaling functions.

Purpose of the Study:

  • To conduct a comprehensive review of the known natural sources of ω-hydroxyacids.
  • To elucidate the biosynthetic pathways and diverse occurrences of these important fatty acids.

Main Methods:

  • Literature review of existing studies on ω-hydroxyacid biosynthesis and natural occurrence.
  • Analysis of P450-dependent enzymatic mechanisms responsible for ω-hydroxyacid production.
Keywords:
ceramidechemical analysisglucosylceramideskin barrierskin physiology/structure

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Main Results:

  • ω-Hydroxyacids are synthesized via two distinct P450-dependent pathways.
  • Longer-chain ω-hydroxyacids (30-34 carbons) are formed by chain extension of palmitic acid followed by terminal hydroxylation.
  • Shorter fatty acids are directly hydroxylated to yield C16 and C18 ω-hydroxyacids (plants) or 20-eicosatetraenoic acid (20-HETE).

Conclusions:

  • ω-Hydroxyacids are widely distributed in nature, found in both mammals and plants.
  • Their presence in epidermal sphingolipids, plant polymers, waxes, and sebum highlights their diverse roles.
  • Understanding the biosynthesis and sources of ω-hydroxyacids is key to appreciating their biological significance.