Tryprophan metbolism in alcoholism. Tryptophan but not excitatory amino acid availablity to the brain is increased before the appearance of the alcohol-withdrawal syndrome in men [PDF]
, 1998 Tryptophan (Trp) metabolism and disposition and excitatory and other amino acid concentrations were determined in alcohol-dependent subjects in relation to the alcohol-withdrawal syndrome (AWS).
Morgan, Christopher J. +7 more
core
FEBS Letters, EarlyView.Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley +1 more source
Metabolism of tryptophan along the kynurenine pathway in alloxan diabetic rabbits
, 2002 In vivo study of the metabolism of tryptophan along the kynurenine pathway in alloxan diabetic ...
ALLEGRI, GRAZIELLA +15 more
core +1 more source
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
Altered Tryptophan and Neopterin Metabolism In Cancer Patients
Pteridines, 1998 Plasma 5-hydroxytryptamine (serotonin), tryptophan and neopterin levels were measured in patients with depressive cancer cachexia and in healthy controls during the same time period.
Iwagaki Hiromi +3 more
doaj +1 more source
Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential
FEBS Letters, EarlyView.Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta +3 more
wiley +1 more source
Tryptophan depletion increases nausea, headache and photophobia in migraine sufferers [PDF]
, 2006 Sensitivity to light was investigated 5 and 8 h after consumption of an amino acid drink which contained L-tryptophan (balanced amino acid condition: 19 controls and 22 migraine sufferers) or which produced a short-term reduction in brain serotonin ...
Drummond, P.D.
core
Tryptophan metabolism along the kynurenine pathway in rats
, 2003 Enzyme activities along the kynurenine pathway, liver tryptophan 2,3-dioxygenase, small intestine indole 2,3-dioxygenase, liver and kidney kynurenine 3-monooxygenase, kynureninase, kynurenine-oxoglutarate transaminase, 3-hydroxyanthranilate 3,4 ...
ALLEGRI, GRAZIELLA +15 more
core +1 more source
Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation
FEBS Letters, EarlyView.Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang +2 more
wiley +1 more source
Microbiota-mediated skewing of tryptophan catabolism modulates CD4+ T cells in lupus-prone mice
iScience, 2022 Summary: A skewed tryptophan metabolism has been reported in patients with lupus. Here, we investigated the mechanisms by which it occurs in lupus-susceptible mice, and how tryptophan metabolites exacerbate T cell activation.
Josephine Brown +15 more
doaj +1 more source