Article Publish Status: FREE
Abstract Title:

Effects ofα-tocopherol on bone marrow mesenchymal cells derived from type II diabetes mellitus rats.

Abstract Source:

J Oral Sci. 2018 ;60(4):579-587. PMID: 30587690

Abstract Author(s):

Masahiro Noguchi, Isao Yamawaki, Saitatsu Takahashi, Yoichiro Taguchi, Makoto Umeda

Article Affiliation:

Masahiro Noguchi


It is widely accepted that vitamin E (VE) acts as an antioxidant and is involved in various metabolic systems including the regulation of gene expression and inhibition of cell proliferation. The most predominant isoform of VE in the living body isα-tocopherol. However, the influence of α-tocopherol on bone marrow mesenchymal cells (BMMCs) in a background of type II diabetes mellitus (DM) has not been investigated. The focus of the present study was to clarify the effect of α-tocopherol on BMMCs derived from rats with type II DM and the underlying mechanisms involved. BMMCs were isolated from rats with type II DM. The BMMCs were either untreated or exposed to α-tocopherol at concentrations of 1.0, 10, and 100 μM, and the resulting effects of α-tocopherol on cell proliferation, HOactivity, and antioxidant and inflammatory cytokine production were examined. At 100μM, α-tocopherol had no effect on cell proliferation, but HOactivity was significantly increased. At 10μM, α-tocopherol increased the gene expression of IL-1β, and markedly promoted that of TNF-α. Expression of catalase in the presence of 100 μM α-tocopherol was lower than for the other concentrations. At a low concentration, α-tocopherol exerted good antioxidant and anti-inflammatory effectson BMMCs. The study suggests that maintaining α-tocopherol at a low concentration might promote the recovery of BMMCs from oxidative stress.

Study Type : Animal Study

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