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Study Title:

Tocotrienol (unsaturated vitamin E) suppresses degranulation of mast cells and reduces allergic derm

Study Abstract

In this study, we examined whether tocotrienol (T3) reduces allergic dermatitis in mice and suppresses degranulation of mast cells. First, allergic dermatitis was examined in the atopic dermatitis model NC/Nga mouse. Allergic dermatitis was induced using picryl chloride in mice with and without administration of T3 (1 mg/day/mouse). Increases in scratching behavior, dermal thickening, and the serum histamine level were greatly reduced in mice treated with T3, indicating that T3 reduces allergic dermatitis in vivo. Next, the effect of T3 on degranulation of mast cells was examined, since these cells release bioactive substances such as histamine. T3 significantly suppressed degranulation of mast cells and significantly reduced histamine release. The effect of T3 on protein kinase C (PKC) activity was also measured, since suppression of this activity may be associated with the mechanism underlying the antidegranulation effect of T3. T3 significantly suppressed PKC activity. Therefore, we conclude that T3 suppresses degranulation of mast cells and reduces allergic dermatitis in mice through reduction of PKC activity.

Study Information


Tocotrienol (unsaturated vitamin E) suppresses degranulation of mast cells and reduces allergic dermatitis in mice.
J Oleo Sci.
2013 January

Full Study

https://www.ncbi.nlm.nih.gov/pubmed/24088520
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