Abstract Title:

Dietary coconut oil ameliorates skin contact hypersensitivity through mead acid production in mice.

Abstract Source:

Allergy. 2019 Mar 6. Epub 2019 Mar 6. PMID: 30843234

Abstract Author(s):

Prabha Tiwari, Takahiro Nagatake, So-Ichiro Hirata, Kento Sawane, Azusa Saika, Yuki Shibata, Sakiko Morimoto, Tetsuya Honda, Jun Adachi, Yuichi Abe, Junko Isoyama, Takeshi Tomonaga, Hiroshi Kiyono, Kenji Kabashima, Jun Kunisawa

Article Affiliation:

Prabha Tiwari


Coconut oil is used as a dietary oil worldwide, and its healthy effects are recognized by the fact that coconut oil is easy to digest, helps in weight management, increases healthy cholesterol and provides instant energy. Although topical application of coconut oil is known to reduce skin infection and inflammation, whether dietary coconut oil has any role in decreasing skin inflammation is unknown. In this study, we showed the impact of dietary coconut oil in allergic skin inflammation by using a mouse model of contact hypersensitivity (CHS). Mice maintained on coconut oil showed amelioration of skin inflammation and increased levels of cis-5, 8, 11-eicosatrienoic acid (mead acid) in serum. Intraperitoneal injection of mead acid inhibited CHS and reduced the number of neutrophils infiltrating the skin. Detailed mechanistic studies unveiled that mead acid inhibited the directional migration of neutrophils by inhibiting the filamentous actin polymerization and leukotriene Bproduction required for secondary recruitment of neutrophils. Our findings provide valuable insights into the preventive roles of coconut oil and mead acid against skin inflammation, thereby offering attractive therapeutic possibilities. This article is protected by copyright. All rights reserved.

Study Type : Animal Study

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