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Review
. 2015 Apr 8:9:2049-61.
doi: 10.2147/DDDT.S79660. eCollection 2015.

The biological effects of tocotrienol on bone: a review on evidence from rodent models

Kok-Yong Chin  1 , Soelaiman Ima-Nirwana  1
Affiliations
Review

The biological effects of tocotrienol on bone: a review on evidence from rodent models

Kok-Yong Chin et al. Drug Des Devel Ther. .

Abstract

Osteoporosis causes significant health care and economic burden to society, leading to a relentless search for effective preventive agents. Tocotrienol, a member of the vitamin E family, has demonstrated promising potential as an osteoporosis-preventing agent. This review summarizes evidence on the effects of tocotrienol on bone in animal models. Techniques used to examine the effects of tocotrienol on bone in animals included bone histomorphometry, X-ray microtomography, dual-energy X-ray absorptiometry, bone turnover markers, bone calcium content, and biomechanical strength. Tocotrienol was shown to improve osteoblast number, bone formation, mineral deposition, and bone microarchitecture in osteopenic rats. It also decreased osteoclast number and bone erosion in the rats. Tocotrienol supplementation resulted in an improvement in bone mineral density, although biomechanical strength was not significantly altered in the rats. The beneficial effects of tocotrienol on bone can be attributed to its role as an antioxidant, anti-inflammatory agent, suppressor of the mevalonate pathway, and modulator of genes favorable to bone formation.

Keywords: bone; osteoporosis; tocotrienol; vitamin E.

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Figures

Figure 1
Figure 1
The effects of tocotrienol on bone. Notes: ↑, increases; ↓, decreases.
Figure 2
Figure 2
The bone-protective mechanism of tocotrienol. Notes: ↑, increases; ↓, decreases.
See this image and copyright information in PMC

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