Tryptophan metabolism in central nervous system diseases: pathophysiology and potential therapeutic strategies

Y Huang, M Zhao, X Chen, R Zhang, A Le… - Aging and …, 2023 - pmc.ncbi.nlm.nih.gov
The metabolism of L-tryptophan (TRP) regulates homeostasis, immunity, and neuronal
function. Altered TRP metabolism has been implicated in the pathophysiology of various …

Searching for peripheral biomarkers in neurodegenerative diseases: the tryptophan-kynurenine metabolic pathway

N Török, M Tanaka, L Vécsei - International journal of molecular sciences, 2020 - mdpi.com
Neurodegenerative diseases are multifactorial, initiated by a series of the causative complex
which develops into a certain clinical picture. The pathogenesis and disease course vary …

Dynamic changes in metabolites of the kynurenine pathway in Alzheimer's disease, Parkinson's disease, and Huntington's disease: A systematic Review and meta …

M Fathi, K Vakili, S Yaghoobpoor, A Tavasol… - Frontiers in …, 2022 - frontiersin.org
Background Tryptophan (TRP) is an essential amino acid that must be provided in the diet.
The kynurenine pathway (KP) is the main route of TRP catabolism into nicotinamide …

Correlation between plasma and CSF concentrations of kynurenine pathway metabolites in Alzheimer's disease and relationship to amyloid-β and tau

KR Jacobs, CK Lim, K Blennow, H Zetterberg… - Neurobiology of …, 2019 - Elsevier
Chronic kynurenine pathway (KP) activation is implicated in Alzheimer's disease (AD)
pathophysiology and results in quinolinic acid–induced excitotoxic stimulation of the N …

Ultrahigh-performance liquid chromatography tandem mass spectrometry with electrospray ionization quantification of tryptophan metabolites and markers of gut …

L Whiley, LC Nye, I Grant, N Andreas… - Analytical …, 2019 - ACS Publications
A targeted ultrahigh-performance liquid chromatography tandem mass spectrometry with
electrospray ionization (UHPLC-ESI-MS/MS) method has been developed for the …

Metabolic phenoty** reveals a reduction in the bioavailability of serotonin and kynurenine pathway metabolites in both the urine and serum of individuals living with …

L Whiley, KE Chappell, E D'hondt, MR Lewis… - Alzheimer's research & …, 2021 - Springer
Background Both serotonergic signalling disruption and systemic inflammation have been
associated with the pathogenesis of Alzheimer's disease (AD). The common denominator …

Gut–brain axis and neuroinflammation: The role of gut permeability and the kynurenine pathway in neurological disorders

R Kearns - Cellular and Molecular Neurobiology, 2024 - Springer
The increasing prevalence of neurological disorders such as Alzheimer's, Parkinson's, and
multiple sclerosis presents a significant global health challenge. Despite extensive research …

[HTML][HTML] Nutritional therapy to modulate tryptophan metabolism and aryl hydrocarbon-receptor signaling activation in human diseases

M Ghiboub, CM Verburgt, B Sovran, MA Benninga… - Nutrients, 2020 - mdpi.com
The aryl hydrocarbon receptor (AhR) is a nuclear protein which, upon association with
certain endogenous and exogenous ligands, translocates into the nucleus, binds DNA and …

Exploring the parity paradox: Differential effects on neuroplasticity and inflammation by APOEe4 genotype at middle age

BH Lee, M Cevizci, SE Lieblich, M Ibrahim… - Brain, Behavior, and …, 2024 - Elsevier
Female sex and Apolipoprotein E (APOE) ε4 genotype are top non-modifiable risk factors for
Alzheimer's disease (AD). Although female-unique experiences like parity (pregnancy and …

Promising new pharmacological targets for depression: The search for efficacy

LE Tsugiyama, RCM Moraes, YAC Moraes… - Drug Discovery …, 2023 - Elsevier
Pharmacological treatment of major depressive disorder (MDD) still relies on the use of
serotonergic drugs, despite their limited efficacy. A few mechanistically new drugs have …