Kynurenines: Tryptophan's metabolites in exercise, inflammation, and mental health

I Cervenka, LZ Agudelo, JL Ruas - Science, 2017 - science.org
BACKGROUND The essential amino acid tryptophan is a substrate for the generation of
several bioactive compounds with important physiological roles. Only a small fraction of …

[HTML][HTML] Aryl hydrocarbon receptor and intestinal immunity

B Lamas, JM Natividad, H Sokol - Mucosal immunology, 2018 - Elsevier
Aryl hydrocarbon receptor (AhR) is a member of the basic helix–loop–helix–(bHLH)
superfamily of transcription factors, which are associated with cellular responses to …

Roles of indole as an interspecies and interkingdom signaling molecule

JH Lee, TK Wood, J Lee - Trends in microbiology, 2015 - cell.com
A number of bacteria, and some plants, produce large quantities of indole, which is
widespread in animal intestinal tracts and in the rhizosphere. Indole, as an interspecies and …

Role of intestinal microbiota and metabolites on gut homeostasis and human diseases

L Lin, J Zhang - BMC immunology, 2017 - Springer
Background A vast diversity of microbes colonizes in the human gastrointestinal tract,
referred to intestinal microbiota. Microbiota and products thereof are indispensable for …

Indole production by the tryptophanase TnaA in Escherichia coli is determined by the amount of exogenous tryptophan

G Li, KD Young - Microbiology, 2013 - microbiologyresearch.org
The signalling molecule indole occurs in significant amounts in the mammalian intestinal
tract and regulates diverse microbial processes, including bacterial motility, biofilm …

Host/microbiota interactions-derived tryptophan metabolites modulate oxidative stress and inflammation via aryl hydrocarbon receptor signaling

YQ Tan, YN Wang, HY Feng, ZY Guo, X Li… - Free Radical Biology …, 2022 - Elsevier
Aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that induces the
expression of a broad range of downstream genes such as cytochromes P450 enzymes and …

Biosynthetic pathways and functions of indole-3-acetic acid in microorganisms

J Tang, Y Li, L Zhang, J Mu, Y Jiang, H Fu, Y Zhang… - Microorganisms, 2023 - mdpi.com
Indole-3-acetic acid (IAA) belongs to the family of auxin indole derivatives. IAA regulates
almost all aspects of plant growth and development, and is one of the most important plant …

Molecular interactions between the intestinal microbiota and the host

S Hertli, P Zimmermann - Molecular Microbiology, 2022 - Wiley Online Library
The intestine is the most densely colonized region of the body, inhabited by a diverse
community of microbes. The functional significance of the intestinal microbiota is not yet fully …

Caenorhabditis elegans, a Host to Investigate the Probiotic Properties of Beneficial Microorganisms

C Poupet, C Chassard, A Nivoliez, S Bornes - Frontiers in nutrition, 2020 - frontiersin.org
Caenorhabditis elegans, a non-parasitic nematode emerges as a relevant and powerful
candidate as an in vivo model for microorganisms-microorganisms and microorganisms …

What if not all metabolites from the uremic toxin generating pathways are toxic? A hypothesis

R Vanholder, SK Nigam, S Burtey, G Glorieux - Toxins, 2022 - mdpi.com
The topic of uremic toxicity has received broad attention from the nephrological community
over the past few decades. An aspect that is much less often considered is the possibility …