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alantolactone/reazioni di ipersensibilità
Il collegamento viene salvato negli appunti
Pagina 1 a partire dal 17 risultati
Allergic contact dermatitis associated with photosensitivity, from alantolactone in a chrysanthemum farmer.
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A successful murine model for contact sensitization to a sesquiterpene-alpha-methylene-gamma-butyrolactone: sensitization to alantolactone in four strains of mice.
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Induction of allergic contact hypersensitivity to a sesquiterpene lactone, alantolactone, was studied in four strains of mice: C3H/He, DBA/2, Balb/b, and Balb/c. The last three were successfully sensitized. A significant dose/response was demonstrated in these species, as well as an experimental
A murine in vitro model of allergic contact dermatitis to sesquiterpene alpha-methylene-gamma-butyrolactones.
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The use of a lymphocyte transformation test (LTT) to provide evidence of allergic contact dermatitis was investigated. The haptens studied were alantolactone and isoalantolactone, two moderate allergens from Inula helenium L., a decorative and medicinal plant. Only alantolactone showed a significant
Sensitization and cross-reaction patterns in Danish Compositae-allergic patients.
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Results of aimed patch testing with constituents of sesquiterpene lactone (SL) mix, Compositae mix (CM) and other Compositae extracts and allergens in 190 Compositae-allergic patients detected in an 8-year period are presented. Feverfew of CM elicited positive reactions most frequently, followed by
Patch testing for Compositae allergy.
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The main allergenic constituents of Compositae plants are the sesquiterpene lactones (SLs). In recent years, a mixture of three SLs, each with a different sesquiterpene skeleton (alantolactone, dehydrocostuslactone or costunolide), has been routinely used to detect Compositae allergy. The purpose of
Occupational allergic contact dermatitis caused by decorative plants.
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12 cases of occupational allergic contact dermatitis caused by decorative plants were diagnosed in a 14-year period. The patients were middle-aged, and their average exposure time was 13 years. The plant families and plants causing occupational contact dermatitis were Compositae (5 patients;
Chrysanthemum allergy. Pt. II: Experimental studies on the causative agents.
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Experimental studies on allergic contact dermatitis due to Chrysanthemum indicum 1. (Chrysanthemum x-morifolium) (chrysanthemum of the florists) have indicated the following results: 1. In 5 patients with allergic contact dermatitis from chrysanthemum oil of turpentine and its sensitizing compounds
Contact hypersensitivity to sesquiterpene lactones in Chyrsanthemum dermatitis.
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In six persons with contact allergy to chrysanthemum of florists, patch tests were performed with 25 sequiterpene lactones. Positive responses were observed to 15 lactones. The most frequently encountered positive responses were to alantolactone (positive in all cases) and to arbusculin A,
[Gaillardia allergy].
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Allergic contact dermatitis of the face and hands occurring in a 37-year-old savings-bank employee was found to be due to non-occupational handling of Gaillardia cultivars. Additional self treatment with a body lotion containing extracts of Arnica worsened the skin lesions. Epicutaneous tests with
Anti-allergic effects of sesquiterpene lactones from Saussurea costus (Falc.) Lipsch. determined using in vivo and in vitro experiments.
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BACKGROUND
Saussurea costus (Falc.) Lipsch. root has been used in Asian traditional medicine for the treatment of asthma, rheumatism, and other conditions. S. costus extracts were shown to alleviate house dust mite-induced atopic-like dermatitis in Nc/Nga mice; besides, sesquiterpene lactones were
Alantolactone from Saussurea lappa Exerts Antiinflammatory Effects by Inhibiting Chemokine Production and STAT1 Phosphorylation in TNF-α and IFN-γ-induced in HaCaT cells.
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Skin inflammation is the most common condition seen in dermatology practice and can be caused by various allergic reactions and certain toxins or chemicals. In the present study, we investigated the antiinflammatory effects of Saussurea lappa, a medicinal herb, and its marker compounds
Allergic contact dermatitis to methylenelactones. Use of lymphocyte transformation test.
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Seventeen guinea pigs were sensitized to alantolactone, a natural sesquiterpene lactone known for its sensitizing properties, using intradermal injections in Freund's complete adjuvant. Guinea pig skin protein extracts (SPE) were used to make conjugates with alantolactone and an isomer,
Anti-allergic effects of sesquiterpene lactones from the root of Aucklandia lappa Decne.
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Aucklandia lappa Decne, a well-known traditional herbal medicine, is used for the treatment of asthma, rheumatism, coughs, tuberculosis and numerous other diseases. The present study evaluated the inhibitory effects of the three sesquiterpene lactones costunolide, dehydrocostus lactone, and
Synthesis of alpha-methylene-gamma-butyrolactones: a structure-activity relationship study of their allergenic power.
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Thirty-five alpha-methylene-gamma-butyrolactones have been prepared and their allergenic properties tested on the skin of guinea pigs experimentally sensitized to (a) alantolactone (1), (b) isoalantolactone (2), and (c) alpha-methylene-gamma-butyrolactone (3). The two first groups of animals
Unexpected positive patch test reactions to sesquiterpene lactones in patients sensitized to the glucose sensor FreeStyle Libre.
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