2007 Feb
The direct relationship between tryptophan levels and depressive symptoms and fatigue has been demonstrated by Trp depletion experiments, as reviewed elsewhere [76], and is also of interest in the context of long-term COVID, as recent studies have shown a significant decrease in plasma Trp levels in PASC patients [48], and alterations in kynurenine pathway metabolites have been associated with cognitive impairment in long COVID patients [27], as well as with anxiety and depressive symptoms in COVID-19 survivors 6 months post-infection [66]
ALLERGAN INFORMATION : Developed in a plant that also handles milk, soya, tree nut, peanut
DOI: 10.6133/apjcn.202003_29(1).0009
Neurochem Res 15:597601 Ricciolini R, Scalibastri M, Kelleher JK, Carminati P, Calvani M, Arduini A (1998) Role of acetyl-l-carnitine in rat brain lipogenesis: implications for polyunsaturated fatty acid biosynthesis
Plasma carnitine deficiency: Clinical observations in 51 pediatric patients
