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Epidermal trans-Urocanic Acid and the UV-A-Induced Photoaging of the Skin

โœ Scribed by Kerry M. Hanson and John D. Simon

Book ID
123641531
Publisher
National Academy of Sciences
Year
1998
Tongue
English
Weight
572 KB
Volume
95
Category
Article
ISSN
0027-8424

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UV-B radiation suppresses cell-mediated immunity. Histidine forms trans-urocanic acid (truns-UCA) enzymatically in the stratum comeum. Photoisomerization of trans-UCA to cis-urocanic acid (cis-UCA) has been proposed for the initiation of an immunosuppressive process. Many microorganisms described in