Development of a 31P magnetic resonance spectroscopy technique to quantify NADH and NAD+ at 3 T

Julian Mevenkamp, Yvonne M H Bruls, Rodrigo Mancilla, Lotte Grevendonk, Joachim E Wildberger, Kim Brouwers, Matthijs K C Hesselink, Patrick Schrauwen, Joris Hoeks, Riekelt H Houtkooper, Mijke Buitinga, Robin A de Graaf, Lucas Lindeboom, Vera B Schrauwen-Hinderling*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

NADH and NAD act as electron donors and acceptors and NAD was shown to stimulate mitochondrial biogenesis and metabolic health. We here develop a non-invasive Phosphorous Magnetic Resonance Spectroscopy ( P-MRS) method to quantify these metabolites in human skeletal muscle on a clinical 3 T MRI scanner. This new MR-sequence enables NADH and NAD+ quantification by suppressing a-ATP signal, normally overlapping with NADH and NAD . The sequence is based on a double spin echo in combination with a modified z-Filter achieving strong a-ATP suppression with little effect on NAD and NADH. Here we test and validate it in phantoms and in humans by measuring reproducibility and detecting a physiological decrease in NAD and increase in NADH induced by ischemia. Furthermore, the P-MRS outcomes are compared to analysis in biopsies. Additionally, we show higher NAD and lower NADH content in physically active older adults compared to sedentary individuals, reflecting increased metabolic health.
Original languageEnglish
Article number9159
Number of pages13
JournalNature Communications
Volume15
Issue number1
DOIs
Publication statusPublished - 24 Oct 2024

Keywords

  • Humans
  • NAD/metabolism
  • Magnetic Resonance Spectroscopy/methods
  • Male
  • Muscle, Skeletal/metabolism diagnostic imaging
  • Adult
  • Female
  • Aged
  • Middle Aged
  • Adenosine Triphosphate/metabolism
  • Reproducibility of Results
  • Phantoms, Imaging
  • Magnetic Resonance Imaging/methods
  • Phosphorus Isotopes

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