Clinical Biochemistry · 2004 · 177 citations · 17 references
Life SciencesBiochemistryGeriatric MedicineAgingEnzymologyMetabolismAge-related Physiologic ChangesAmino Acid MetabolismAmino Acid Metabolism DisordersBiological AgingProtein DegradationHomocysteine ElevationTryptophan MetabolismTryptophan Oxidation
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Inhibition of T Cell Proliferation by Macrophage Tryptophan Catabolism
David H. Munn, Ebrahim Shafizadeh, John T. Attwood et al. · The Journal of Experimental Medicine · 1999 · 1.6K citations · Full text
Simultaneous Measurement of Serum Tryptophan and Kynurenine by HPLC,
Bernhard Widner, Ernst R. Werner, Harald Schennach et al. · Clinical Chemistry · 1997 · 411 citations · Full text
Jacob Selhub, Paul F. Jacques, Irwin H. Rosenberg et al. · Annals of Internal Medicine · 1999 · 380 citations