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. 2023 Apr 13;45(4):2659–2667. doi: 10.1007/s11357-023-00792-8

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© This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2023

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Fig. 2 — Trajectories of IDO activity and homoarginine synthesis by groups. Legend: p-values indicate the significance for group differences, including both cross-sectional and longitudinal comparisons. The dual decline group had a significant increase in IDO activity and a significant decrease in homoarginine synthesis compared to no decline (p = 2.72E-05, and p = 0.012, respectively)