Results 161 to 170 of about 982 (195)
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Urushiol Patch Test Using the T.R.U.E. TEST System
Dermatitis®, 2018Background Poison ivy, poison oak, and poison sumac are the most common causes of allergic contact dermatitis in North America. Although extensive efforts have been made to develop therapies that prevent and treat allergic contact dermatitis to these plants, there lacks an entirely effective method, besides ...
Yesul, Kim +6 more
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Allergic Contact Dermatitis to Ginkgo biloba L.: Relationship with Urushiol
Archives of Dermatological Research, 1989A Ginkgo biloba L. fruit extract was prepared and purified. Three groups of guinea pigs were sensitized to the crude extract, anacardic acids 1, and cardanols 2 respectively, using the FCAT method, and the fourth group to urushiol using the epicutaneous route.
J P, Lepoittevin, C, Benezra, Y, Asakawa
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Separation and characterization of Metopium brownei urushiol components
Phytochemistry, 1997Abstract The composition of Metopium brownei ; 3- n -alk(en)ylcatechols (urushiol) was established by GC-mass spectrometry analysis of their corresponding TMSi ether derivatives. Bioactivity-directed fractionation of the acetone extract from the fresh stem bark of M. brownei rendered a mixture of three 3- n -pentadec(en)ylcatechols with antifungal
Jose F. Rivero-Cruz +4 more
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2004
Abstract Literally thousands of plant constituents affect the skin in some way, from simple irritation to full-blown allergy. Most allergy sufferers are well acquainted with the effects of urushiols and laccols from poison oak, poison ivy, and their toxic relatives, so this chapter will focus on the underlying chemical characteristics of
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Abstract Literally thousands of plant constituents affect the skin in some way, from simple irritation to full-blown allergy. Most allergy sufferers are well acquainted with the effects of urushiols and laccols from poison oak, poison ivy, and their toxic relatives, so this chapter will focus on the underlying chemical characteristics of
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Contact sensitivity to urushiol: Role of covalent bond formation
Cellular Immunology, 1982Abstract A single cutaneous application of components of poison oak or ivy urushiol oils to mice results in contact sensitivity with properties of delayed-type hypersensitivity. The compounds, 3-heptadecylcatechol (HDC, from poison oak urushiol) and 3-pentadecylcatechol (PDC, from poison ivy urushiol) are completely cross-reactive.
I S, Dunn +3 more
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Urushiol components as mediators in DNA strand scission
Experientia, 1990Poison oak urushiol, a mixture of 3-alk(en)ylcatechol derivatives was found to mediate DNA strand scission in the presence of oxygen and with copper(II) chloride as a catalyst. The reactionis believed to occur via activated reduced oxygen produced during oxidation of the catechol into itso-quinone derivative.
Ch. Wasser, F. Silva, E. Rodriguez
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Electrospinning PVP/Urushiol/Ag nanofilms: Use as wrapper of stainless steel yarns
Progress in Organic Coatings, 2022Bing-Chiuan Shiu +2 more
exaly
Journal of the American Chemical Society, 1954
William F. Symes, Charles R. Dawson
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William F. Symes, Charles R. Dawson
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