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Trans lipids: the free radical path.

Chryssostomos Chatgilialoglu1, Carla Ferreri

  • 1ISOF, Consiglio Nazionale delle Ricerche, Bologna, Italy.

Accounts of Chemical Research
|June 22, 2005
PubMed
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Free radicals can convert cis unsaturated fatty acids to trans forms, potentially originating within the human body. This cis-trans isomerization impacts lipid biology and medicine, with ongoing research in lipidomics.

Area of Science:

  • Biochemistry
  • Lipid Chemistry
  • Biological Chemistry

Background:

  • Unsaturated fatty acids exist in cis and trans isomeric forms.
  • The biological significance of trans unsaturated fatty acids (TUFA) is an area of active research.
  • Understanding lipid isomerization is crucial for biological and medical applications.

Purpose of the Study:

  • To review the free radical-catalyzed cis-trans isomerization of unsaturated lipids.
  • To explore the endogenous origins of TUFA in humans.
  • To highlight the relevance of lipid geometry in biological systems.

Main Methods:

  • Review of existing literature on free radical chemistry and lipid isomerization.
  • Analysis of biomimetic conditions simulating biological environments.

Related Experiment Videos

  • Multidisciplinary approach integrating chemistry, biology, and medicine.

    • Main Results:

    • Free radical-catalyzed cis-trans isomerization of unsaturated lipids can occur under biomimetic conditions.
    • Evidence suggests thiyl radicals may contribute to the endogenous formation of TUFA in humans.
    • The geometry of lipids plays a critical role in biological functions.

    Conclusions:

    • Free radical reactions are implicated in lipid isomerization, with potential endogenous sources.
    • Maintaining cis lipid geometry is vital in biological systems.
    • Further research in lipidomics, biology, and medicine is warranted to explore these findings.