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Article

Ketones Elicit Distinct Alterations in Adipose Mitochondrial Bioenergetics

1
Department of Physiology and Developmental Biology, Brigham Young University, Provo, UT 84602, USA
2
Department of Exercise Sciences, Brigham Young University, Provo, UT 84602, USA
*
Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2020, 21(17), 6255; https://doi.org/10.3390/ijms21176255
Received: 6 August 2020 / Revised: 26 August 2020 / Accepted: 27 August 2020 / Published: 29 August 2020
(This article belongs to the Special Issue The Effects of Ketones on Metabolic Function 2.0)
Objective: The rampant growth of obesity worldwide has stimulated explosive research into human metabolism. Energy expenditure has been shown to be altered by diets differing in macronutrient composition, with low-carbohydrate, ketogenic diets eliciting a significant increase over other interventions. The central aim of this study was to explore the effects of the ketone β-hydroxybutyrate (βHB) on mitochondrial bioenergetics in adipose tissue. Methods: We employed three distinct systems—namely, cell, rodent, and human models. Following exposure to elevated βHB, we obtained adipose tissue to quantify mitochondrial function. Results: In every model, βHB robustly increased mitochondrial respiration, including an increase of roughly 91% in cultured adipocytes, 113% in rodent subcutaneous adipose tissue (SAT), and 128% in human SAT. However, this occurred without a commensurate increase in adipose ATP production. Furthermore, in cultured adipocytes and rodent adipose, we quantified and observed an increase in the gene expression involved in mitochondrial biogenesis and uncoupling status following βHB exposure. Conclusions: In conclusion, βHB increases mitochondrial respiration, but not ATP production, in mammalian adipocytes, indicating altered mitochondrial coupling. These findings may partly explain the increased metabolic rate evident in states of elevated ketones, and may facilitate the development of novel anti-obesity interventions. View Full-Text
Keywords: mitochondria; uncoupling; ketones; adipocyte mitochondria; uncoupling; ketones; adipocyte
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MDPI and ACS Style

Walton, C.M.; Jacobsen, S.M.; Dallon, B.W.; Saito, E.R.; Bennett, S.L.H.; Davidson, L.E.; Thomson, D.M.; Hyldahl, R.D.; Bikman, B.T. Ketones Elicit Distinct Alterations in Adipose Mitochondrial Bioenergetics. Int. J. Mol. Sci. 2020, 21, 6255. https://doi.org/10.3390/ijms21176255

AMA Style

Walton CM, Jacobsen SM, Dallon BW, Saito ER, Bennett SLH, Davidson LE, Thomson DM, Hyldahl RD, Bikman BT. Ketones Elicit Distinct Alterations in Adipose Mitochondrial Bioenergetics. International Journal of Molecular Sciences. 2020; 21(17):6255. https://doi.org/10.3390/ijms21176255

Chicago/Turabian Style

Walton, Chase M., Samuel M. Jacobsen, Blake W. Dallon, Erin R. Saito, Shantelle L.H. Bennett, Lance E. Davidson, David M. Thomson, Robert D. Hyldahl, and Benjamin T. Bikman 2020. "Ketones Elicit Distinct Alterations in Adipose Mitochondrial Bioenergetics" International Journal of Molecular Sciences 21, no. 17: 6255. https://doi.org/10.3390/ijms21176255

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