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. 2016 Dec 20;6:38543. doi: 10.1038/srep38543

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Copyright © 2016, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Inline graphic — Oligomycin was added at 21 min to inhibit ATP synthesis, the proton ionophore FCCP was added at 41 min to assess the maximum possible oxygen consumption, and antimycin A was added at 61 min to inhibit electron flow through complex III. The static magnetic field was 50 μT and the RF was 1.4 MHz at Zeeman resonance. The RF was oriented perpendicular (A and C) or parallel (B and D) to the static field. Perpendicular RF excitation did not affect the oxygen consumption rate (OCR) (Panel A), whereas extracellular acidification rate (ECAR) was increased by 100 ± 13 (p < 0.001, Panel C). Parallel RF excitation lead to increased OCR by 54 ± 4 (p < 0.001, Panel B), while ECAR remained unchanged (Panel D). These are results of 3 independent representative experiments and data were normalized to total cellular protein.

Inline graphic — Oligomycin was added at 21 min to inhibit ATP synthesis, the proton ionophore FCCP was added at 41 min to assess the maximum possible oxygen consumption, and antimycin A was added at 61 min to inhibit electron flow through complex III. The static magnetic field was 50 μT and the RF was 1.4 MHz at Zeeman resonance. The RF was oriented perpendicular (A and C) or parallel (B and D) to the static field. Perpendicular RF excitation did not affect the oxygen consumption rate (OCR) (Panel A), whereas extracellular acidification rate (ECAR) was increased by 100 ± 13 (p < 0.001, Panel C). Parallel RF excitation lead to increased OCR by 54 ± 4 (p < 0.001, Panel B), while ECAR remained unchanged (Panel D). These are results of 3 independent representative experiments and data were normalized to total cellular protein.