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Cited by 221

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Real‐time assessment of Krebs cycle metabolism using hyperpolarized C magnetic resonance spectroscopy

Open access
Schroeder, Marie A., Atherton, Helen J., Ball, Daniel R., Cole, Mark A., Heather, Lisa C., Griffin, Julian L., Clarke, Kieran, Radda, George K., Tyler, Damian J.·2009·The FASEB Journal

Abstract

The Krebs cycle plays a fundamental role in cardiac energy production and is often implicated in the energetic imbalance characteristic of heart disease. In this study, we measured Krebs cycle flux in real time in perfused rat hearts using hyperpolarized magnetic resonance spectroscopy (MRS). [2‐ 13 C]Pyru‐ vate was hyperpolarized and infused into isolated perfused hearts in both healthy and postischemic metabolic states. We followed the enzymatic conversion of pyruvate to lactate, acetylcarnitine, citrate, and glutamate with 1 s temporal resolution. The appearance of 13 C‐labeled glutamate was delayed compared with that of other metabolites, indicating that Krebs cycle flux can be measured directly. The production of 13 C‐ labeled citrate and glutamate was decreased postischemia, as opposed to lactate, which was significantly elevated. These results showed that the control and fluxes of the Krebs cycle in heart disease can be studied using hyperpolarized [2‐ 13 C]pyruvate.— Schroeder, M. A., Atherton, H. J., Ball, D. R., Cole, M. A., Heather, L. C., Griffin, J. L., Clarke, K., Radda, G. K., Tyler, D. J. Real‐time assessment of Krebs cycle metabolism using hyperpolarized 13C magnetic resonance spectroscopy. FASEBJ. 23, 2529–2538 (2009)

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Metadata

Authors
Schroeder, M. A., Atherton, H. J., Ball, D. R., Cole, M. A., Heather, L. C., Griffin, J. L., Clarke, K., Radda, G. K., & Tyler, D. J.
Venue
The FASEB Journal
Publisher
Wiley
Published
2009-03-27
Volume
23
Issue
8
Pages
2529-2538
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W2129716919
Cited by
221
References
2
FWCI
9.20
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Real‐time assessment of Krebs cycle metabolism using hyperpolarized C magnetic resonance spectroscopy. https://app.cochat.ai/papers/10.1096/fj.09-129171
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Schroeder, M. A., Atherton, H. J., Ball, D. R., Cole, M. A., Heather, L. C., Griffin, J. L., Clarke, K., Radda, G. K., & Tyler, D. J. (2009). Real‐time assessment of Krebs cycle metabolism using hyperpolarized C magnetic resonance spectroscopy. The FASEB Journal. https://doi.org/10.1096/fj.09-129171

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