About the Authors

Aiko Kageyama

Affiliation Development Research, Mochida Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan

Hiroki Matsui

Affiliations Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan, Department of Laboratory Sciences, Gunma University Graduate School of Health Sciences, Maebashi, Gunma, Japan

Masahiko Ohta

Affiliation Development Research, Mochida Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan

Keisuke Sambuichi

Affiliation Development Research, Mochida Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan

Hiroyuki Kawano

h-kawano@mochida.co.jp

Affiliation Development Research, Mochida Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan

Tatsuto Notsu

Affiliation Development Research, Mochida Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan

Kazunori Imada

Affiliation Development Research, Mochida Pharmaceutical Co., Ltd., Gotemba, Shizuoka, Japan

Tomoyuki Yokoyama

Affiliation Department of Laboratory Sciences, Gunma University Graduate School of Health Sciences, Maebashi, Gunma, Japan

Masahiko Kurabayashi

Affiliation Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan

Competing Interests

AK, MO, KS, HK, TN and KI are employees of Mochida pharmaceutical Co., LTD., whose company funded this study and sells EPA preparation. There are no further patents, products in development or marketed products to declare. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: AK HM MO HK MK. Performed the experiments: AK HM MO KS. Analyzed the data: AK HM MO HK TN KI TY MK. Wrote the paper: AK HM HK MK.