Results 131 to 140 of about 1,087,731 (295)

Metabolism of an oral tryptophan load. I: Effects of dose and pretreatment with tryptophan.

open access: yes, 2012
1 The metabolism of three oral doses of L-tryptophan (50, 25 and 10 mg/kg) in healthy young males has been investigated. 2 There was a linear relationship between both peak and area under curve of the total plasma tryptophan concentrations whilst the ...
AR Green   +3 more
core   +1 more source

Galactokinase 1 Positively Regulates Mitochondrial Respiration by Phosphorylating TIMM13 as a Protein Kinase

open access: yesAdvanced Science, EarlyView.
GALK1 acts as a protein kinase beyond the phosphorylation of galactose. GALK1 phosphorylates TIMM13 at Y73 in the cytoplasm. This phosphorylation prevents premature oxidative folding of TIMM13 and ensures its entrance into the intermembrane space of mitochondrion, positively regulating mitochondrial respiration.
Chang Woo Ko   +5 more
wiley   +1 more source

Single‐Nucleus Transcriptomic Atlas of Human Vellus Hair Pilosebaceous Units Reveals Age‐Associated Remodeling

open access: yesAdvanced Science, EarlyView.
Human vellus pilosebaceous units (PSUs) remain uncharted. This single‐nucleus atlas reveals coordinated remodeling of the aging PSU niche: reduced bulge stem cell representation with altered regenerative programs, increased representation of a stress‐responsive channel+ epithelial state, enhanced androgen‐responsive sebaceous programs, reduced ...
Ya'nan Li   +9 more
wiley   +1 more source

Tryptophan metabolism during the menstrual cycle

open access: yes, 1997
The metabolism of tryptophan and tryptophan metabolites was investigated during the follicular, luteal and premenstrual phases of the menstrual cycle in 33 healthy women across one cycle.
Brien, S., Bonner, A., Martin, C.
core   +1 more source

Metabolic Signatures for Liver Cancer Diagnosis and Mechanistic Insights: A Large‐Scale, Multicenter Study

open access: yesAdvanced Science, EarlyView.
A large‐scale multicenter serum metabolomics study (13 centers, n = 2,149) identified a 9‐metabolite + AFP diagnostic signature for liver cancer (AUC = 0.93). Among the signature, nicotinamide (NAM) was validated as an oncometabolite: NAM enhances NAD+ synthesis, activating SIRT1 to deacetylate and stabilize HIF1α, thereby driving glycolysis, MAPK ...
Yongjie Xu   +13 more
wiley   +1 more source

TRYPTOPHAN METABOLISM

open access: yesJournal of Biological Chemistry, 1949
Charles. Heidelberger   +3 more
  +4 more sources

Fecal tryptophan metabolism predicts the development of infant eczema: a prospective longitudinal study

open access: yesGut Microbes
Early-life microbial metabolism of tryptophan plays a critical role in immune modulation and may influence susceptibility to inflammatory disorders such as eczema.
Naomi V. Wieser   +12 more
doaj   +1 more source

Bioengineered Stroma‐Camouflaged Nanovesicles Disrupt the IDO1/CD276 Immunosuppressive Circuit to Reinvigorate Antitumor Immunity

open access: yesAdvanced Science, EarlyView.
Bioengineered stroma‐camouflaged nanovesicles (AM@UIO‐BMS/DOX) convert the immunosuppressive tumor niche into an immunoresponsive milieu by disrupting the IDO1/CD276 circuit. Anti‐CD276 membrane camouflage guides tumor accumulation and deep penetration, enabling controlled co‐delivery of DOX and the IDO1 inhibitor BMS‐986205.
Ziqi Zhang   +11 more
wiley   +1 more source

Gut-derived lactic acid enhances tryptophan to 5-hydroxytryptamine in regulation of anxiety via Akkermansia muciniphila

open access: yesGut Microbes
The gut microbiota plays a pivotal role in anxiety regulation through pathways involving neurotransmitter production, immune signaling, and metabolic interactions.
Miaomiao Pan   +16 more
doaj   +1 more source

Structural Variants in the Human Genome Associated With Gut Microbiome and Blood Metabolic Traits With Potential Causal Links

open access: yesAdvanced Science, EarlyView.
Based on a multi‐omics cohort of 2002 individuals comprising high‐depth whole‐genome and metagenomic sequencing data, blood metabolites, and detailed questionnaires, we identified 138 859 high‐confidence SVs, uncovering 36 significant SV–microbiome associations and 48 SV–blood metabolite associations.
Qun Zhou   +13 more
wiley   +1 more source

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