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Open AccessArticle

1,8-Cineole Ameliorates Steatosis of Pten Liver Specific KO Mice via Akt Inactivation

1
Department of Surgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
2
Department of Endocrinology and Metabolism, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
3
Department of Biomedical Sciences, Division of Medical Life Sciences, Graduate School of Health Sciences, Hirosaki University, Hirosaki, Aomori 036-8564, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Johannes Haybaeck
Int. J. Mol. Sci. 2015, 16(6), 12051-12063; https://doi.org/10.3390/ijms160612051
Received: 1 April 2015 / Accepted: 15 May 2015 / Published: 27 May 2015
(This article belongs to the Collection Molecular Mechanisms of Human Liver Diseases)
Hepatocyte-specific Phosphatase and tensin homolog (Pten)-knockout (KO) mice exhibit hepatic lesions analogous to non-alcoholic steatohepatitis (NASH). 1,8-cineole is a monoterpene oxide and it has several biological effects including hepatoprotective effects. In this study we revealed that 1,8-cineole ameliorates NASH of Pten KO mice. Pten KO mice were assigned to a control group without any medication or to a 1,8-cineole group injected with 50 mg/kg i.p. twice per week for eight weeks. At eight weeks, livers from each group were processed to measure triglyceride (TG) content, gene expression analysis, western blot analysis, and histological examination including Oil red O staining. 1,8-cineole ameliorated hepatic steatosis in Pten KO mice, revealed by TG content and Oil red O staining. Moreover, 1,8-cineole downregulated collagen 1a1 expression and improved liver fibrosis. Thus, 1,8-cineole has potential as a candidate to treat NASH by inactivating the Akt/PI3-kinase pathway. View Full-Text
Keywords: 1,8-cineole; NASH; PTEN; Akt; LXR alpha 1,8-cineole; NASH; PTEN; Akt; LXR alpha
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Murata, S.; Ogawa, K.; Matsuzaka, T.; Chiba, M.; Nakayama, K.; Iwasaki, K.; Kurokawa, T.; Sano, N.; Tanoi, T.; Ohkohchi, N. 1,8-Cineole Ameliorates Steatosis of Pten Liver Specific KO Mice via Akt Inactivation. Int. J. Mol. Sci. 2015, 16, 12051-12063.

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