RHR: The Health Benefits of Tocotrienols, with Dr. Barrie Tan

Dr. Barrie Tan, one of the world’s foremost experts in vitamin E, joins Chris Kresser in this episode of Revolution Health Radio to discuss tocotrienols and their health benefits. Dr. Tan talks about his discovery of the tocotrienol content in the annatto plant, explains how tocotrienols differ from and interact with tocopherols (the more commonly-known Read more…

Effects of Vitamin E and Dietary Conditions on the Differentiation and Maturation of Osteoclast

Yoko Fujiwara, Yuko Ko, Mariko Sonoda, Ikuyo Ichi, Tomoko Ishikawa

J Nutr Sci Vitaminol (Tokyo) . 2022;68(1):73-77. doi: 10.3177/jnsv.68.73.

Abstract α-Tocopherol is reported to activate the differentiation and fusion of osteoclast, however, it is not clear whether the excessive intake of vitamin E is a risk for osteoporosis. To investigate the effects of vitamin E and the dietary conditions on the osteoclastogenesis, osteoclast differentiation was evaluated using the bone marrow cells collected from mice Read more…

Tocotrienol Supplementation Led to Higher Serum Levels of Lysophospholipids but Lower Acylcarnitines in Postmenopausal Women: A Randomized Double-Blinded Placebo-Controlled Clinical Trial

Chwan-Li Shen, Huanbiao Mo, Dale M Dunn, Bruce A Watkins

Front Nutr . 2021 Dec 24;8:766711. doi: 10.3389/fnut.2021.766711. eCollection 2021.

Abstract Osteoporosis is a major health problem in postmenopausal women. Herein we evaluated the effects of 12-week tocotrienols (TT) supplementation on serum metabolites in postmenopausal, osteopenic women. Eighty-nine participants (59.7 ± 6.8 yr, BMI 28.7 ± 5.7 kg/m2) were assigned to 3 treatments: placebo (860 mg olive oil/day), 300mg TT (300 mg TT/day), and 600mg Read more…

γ-Tocotrienol induced the proliferation and differentiation of MC3T3-E1 cells through the stimulation of the Wnt/β-catenin signaling pathway

Weili Xu, Yutong Li, Rennan Feng, Pan He, Yuqi Zhang

Food Funct . 2021 Dec 15. doi: 10.1039/d1fo02583j. Online ahead of print.

Abstract γ-Tocotrienol (γ-T3), an isoprenoid phytochemical, has shown the promotion of osteoblast proliferation and differentiation in our previous study. In this study, its underlying mechanism was investigated through regulating the Wnt/β-catenin signaling pathway in MC3T3-E1 cells. Comparative experiment results showed that γ-T3, not α-tocopherol (α-TOC) increased more significantly the viability and differentiation in MC3T3-E1 cells. Read more…

Self-emulsified annatto tocotrienol improves bone histomorphometric parameters in a rat model of oestrogen deficiency through suppression of skeletal sclerostin level and RANKL/OPG ratio

Nur-Vaizura Mohamad, Soelaiman Ima-Nirwana, Kok-Yong Chin

Int J Med Sci . 2021 Sep 9;18(16):3665-3673. doi: 10.7150/ijms.64045. eCollection 2021.

Abstract Menopause is the leading cause of osteoporosis for elderly women due to imbalanced bone remodelling in the absence of oestrogen. The ability of tocotrienol in reversing established bone loss due to oestrogen deficiency remains unclear despite the plenitude of evidence showcasing its preventive effects. This study aimed to investigate the effects of self-emulsified annatto Read more…

Dietary Intake of Vitamin E and Fats Associated with Sarcopenia in Community-Dwelling Older Japanese People: A Cross-Sectional Study from the Fifth Survey of the ROAD Study

Yuta Otsuka, Toshiko Iidaka, Chiaki Horii, Shigeyuki Muraki, Hiroyuki Oka, Kozo Nakamura, Takayuki Izumo, Tomohiro Rogi, Hiroshi Shibata, Sakae Tanaka, Noriko Yoshimura

Nutrients . 2021 May 20;13(5):1730. doi: 10.3390/nu13051730.

Abstract Dietary habits are of considerable interest as a modifiable factor for the maintenance of muscle health, especially sarcopenia. The present study aimed to investigate the association between dietary intake and sarcopenia prevalence in community-dwelling Japanese subjects. This cross-sectional study was conducted using data from the fifth survey of the Research on Osteoarthritis/Osteoporosis against Disability Read more…

Therapeutic potential of annatto tocotrienol with self-emulsifying drug delivery system in a rat model of postmenopausal bone loss

Nur-Vaizura Mohamad, Soelaiman Ima-Nirwana, Kok-Yong Chin

Biomed Pharmacother . 2021 Feb 11;137:111368. doi: 10.1016/j.biopha.2021.111368. Online ahead of print.

Abstract Tocotrienol has been shown to prevent bone loss in animal models of postmenopausal osteoporosis, but the low oral bioavailability might limit its use. A self-emulsifying drug delivery system (SEDDS) could increase the bioavailability of tocotrienol. However, evidence of this system in improving the skeletal effects of tocotrienol is scanty. This study aims to evaluate Read more…

Reply “Comment on: Food for Bone: Evidence for a Role for Delta-Tocotrienol in the Physiological Control of Osteoblast Migration. Int. J. Mol. Sci. 2020, 21, 4661”

Lavinia Casati, Francesca Pagani, Roberto Maggi, Francesco Ferrucci, Valeria Sibilia

Int J Mol Sci . 2020 Sep 12;21(18):E6675. doi: 10.3390/ijms21186675.

Dear Editor, We have carefully read the Letter to the Editor by Pang and Chin related to our paper entitled “Food for bone: evidence for a role for delta-tocotrienol in the physiological control of osteoblast migration” [1] published in the International Journal of Molecular Science. We have some issues regarding the points raised by the Read more…

Comment on: Food for Bone: Evidence for a Role for Delta-Tocotrienol in the Physiological Control of Osteoblast Migration. Int. J. Mol. Sci. 2020, 21, 4661

Kok-Lun Pang, Kok-Yong Chin

Int J Mol Sci . 2020 Sep 12;21(18):E6674. doi: 10.3390/ijms21186674.

Dear Editor, We applaud the innovative work by Casati et al., which explored the effects of delta-tocotrienol (δ-TT) in promoting osteoblast migration [1]. Vitamin E is reported as a nutrient important for maintaining bone health in epidemiological studies [2]. However, the statement “osteoporosis has been correlated with low intake, and serum levels of TTs” is Read more…

Nutrient intakes and medication use in elderly individuals with and without dry mouths

Lee KA, Park JC, Park YK

Nutr Res Pract. 2020 Apr;14(2):143-151. doi: 10.4162/nrp.2020.14.2.143. Epub 2019 Dec 13.

Abstract BACKGROUND/OBJECTIVES: The nutrition of the elderly depends on various factors. Oral health, especially oral dryness, can be an important risk factor. In this study, we attempted to determine whether dry mouth is associated with compromised nutrient intakes. SUBJECTS/METHODS: A total of 120 participants aged 65-86 yrs (mean age: 69 ± 1 y) were included Read more…