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Urocanic Acid

Known as: Acid, Urocanic, 2-Propenoic acid, 3-(1H-imidazol-4-yl)-, Glyoxalinylacrylic Acid 
4-Imidazoleacrylic acid.
National Institutes of Health

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2-methylurocanic acidurocanatevisoltricin
In Bloodagonistsanalogs & derivativesantagonists & inhibitors

Papers overview

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Highly Cited
1997
Highly Cited
1997
Histamine involvement in UVB‐ and cis‐urocanic acid‐induced systemic suppression of contact hypersensitivity responses
Studies in experimental models have implicated histamine and prostanoids in ultra‐violet B (UVB)‐ and cis‐urocanic acid (UCA… 
Highly Cited
1995
Highly Cited
1995
Cis‐UROCANIC ACID SYNERGIZES WITH HISTAMINE FOR INCREASED PGE2 PRODUCTION BY HUMAN KERATINOCYTES: LINK TO INDOMETHACIN‐INHIBITABLE UVB‐INDUCED IMMUNOSUPPRESSION
Abstract— There is considerable evidence that suppression of the immune system by UVB (280–320 nm UV) irradiation is initiated by… 
Highly Cited
1993
Highly Cited
1993
ACTION SPECTRA FOR THE trans TO cis PHOTOISOMERISATION OF UROCANIC ACID in vitro and IN MOUSE SKIN
Urocanic acid (UCA) is a major UV chromophore in the upper layers of the skin where it is found predominantly as the trans isomer… 
Highly Cited
1993
Highly Cited
1993
Characterization of a monoclonal antibody to cis-urocanic acid: detection of cis-urocanic acid in the serum of irradiated mice by immunoassay.
Cis-urocanic acid (cis-UCA), which is formed from the naturally occurring trans-isomer on ultraviolet (UV) irradiation, has been… 
Highly Cited
1989
Highly Cited
1989
UROCANIC ACID ANALOGUES AND THE SUPPRESSION OF THE DELAYED TYPE HYPERSENSITIVITY RESPONSE TO Herpes simplex VIRUS
Abstract 
Highly Cited
1989
Highly Cited
1989
TOPICAL UROCANIC ACID ENHANCES UV‐INDUCED TUMOUR YIELD AND MALIGNANCY IN THE HAIRLESS MOUSE
Abstract— Epidermal urocanic acid has been postulated to be the mediator of the specific state of immunosuppression induced by UV… 
Highly Cited
1986
Highly Cited
1986
Ultraviolet-irradiated urocanic acid suppresses delayed-type hypersensitivity to herpes simplex virus in mice.
Ultraviolet radiation is known to induce a transient defect in epidermal antigen presentation which leads to the generation of… 
Highly Cited
1985
Highly Cited
1985
PHOTOCHEMISTRY AND PHOTOBIOLOGY OF UROCANIC ACID
: E-Urocanic acid is a metabolite of histidine which accumulates in the skin and is excreted in sweat. It has been of interest to… 
Highly Cited
1963
Highly Cited
1963
THE MOLECULAR BASIS OF HISTIDASE INDUCTION IN BACILLUS SUBTILIS.
Highly Cited
1962
Highly Cited
1962
A Spectrophotometric Method for Estimating Formimino-glutamic and Urocanic acid
Adams, E. B. (1957). S. Air. med. J., 31, 633. -and Forbes, P. F. V. (1957). S. Afr. J. Lab. clin. Med., 3, 291. and Wilmot, A. J… 
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