Results 21 to 30 of about 229,751 (309)

Digestible tryptophan levels for male broilers in pre-starter and starter diets

Semina: Ciências Agrárias, 2016
The objective was to determine the digestible tryptophan requirements for male broilers in pre-starter and starter phases. Two experiments using 400 Cobb broilers were performed 200 males in the first experiment for the pre-starter phase (one to seven ...
Bruno Samuel Borges, Romão da Cunha Nunes, Jose Henrique Strighini, Alessandra Gimenez Mascarenhas, Heloísa Helena de Carvalho Mello, Julyana Machado da Silva Martins, Raiana Almeida Noleto, Maryelle Durães de Oliveira   +7 more
doaj   +1 more source

The Gut Microbiota, Kynurenine Pathway, and Immune System Interaction in the Development of Brain Cancer

Frontiers in Cell and Developmental Biology, 2020
Human gut microbiota contains a large, complex, dynamic microbial community of approximately 1014 microbes from more than 1,000 microbial species, i.e., equivalent to 4 × 106 genes.
Mona Dehhaghi, Mona Dehhaghi, Mona Dehhaghi, Hamed Kazemi Shariat Panahi, Hamed Kazemi Shariat Panahi, Benjamin Heng, Gilles J. Guillemin, Gilles J. Guillemin   +7 more
doaj   +1 more source

Growth performance and small intestinal morphology of native chickens after feed supplementation with tryptophan and threonine during the starter phase [PDF]

Veterinary World, 2020
Background and Aim: The amino acid content of feed can affect growth performance of poultry during the first 6 weeks of life or the starter phase.
Charles V. Lisnahan, Oktovianus R. Nahak
doaj   +1 more source

Nanosensor detection of an immunoregulatory tryptophan influx/kynurenine efflux cycle.

PLoS Biology, 2007
Mammalian cells rely on cellular uptake of the essential amino acid tryptophan. Tryptophan sequestration by up-regulation of the key enzyme for tryptophan degradation, indoleamine 2,3-dioxygenase (IDO), e.g., in cancer and inflammation, is thought to ...
Thijs Kaper, Loren L Looger, Hitomi Takanaga, Michael Platten, Lawrence Steinman, Wolf B Frommer   +5 more
doaj   +1 more source

Structural Characterization of New Microcystins Containing Tryptophan and Oxidized Tryptophan Residues

Marine Drugs, 2013
Microcystins are cyclic peptides produced by cyanobacteria, which can be harmful to humans and animals when ingested. Eight of the (more than) 90 microcystin variants presently characterized, contain the amino acid tryptophan.
David P. Hamilton, Stephen Craig Cary, Frode Rise, Christopher O. Miles, Jonathan Puddick, Susanna A. Wood, Michèle R. Prinsep, Alistair L. Wilkins   +7 more
doaj   +1 more source

AhR/IL-22 pathway as new target for the treatment of post-infectious irritable bowel syndrome symptoms

Gut Microbes, 2022
Alterations in brain/gut/microbiota axis are linked to Irritable Bowel Syndrome (IBS) physiopathology. Upon gastrointestinal infection, chronic abdominal pain and anxio-depressive comorbidities may persist despite pathogen clearance leading to Post ...
Maëva Meynier, Elodie Baudu, Nathalie Rolhion, Manon Defaye, Marjolène Straube, Valentine Daugey, Morgane Modoux, Ivan Wawrzyniak, Frédéric Delbac, Romain Villéger, Mathieu Méleine, Esther Borras Nogues, Catherine Godfraind, Nicolas Barnich, Denis Ardid, Philippe Poirier, Harry Sokol, Jean-Marc Chatel, Philippe Langella, Valérie Livrelli, Mathilde Bonnet, Frédéric Antonio Carvalho   +21 more
doaj   +1 more source

Serotonin and Tryptophan Serum Concentrations in Shelter Dogs Showing Different Behavioural Responses to a Potentially Stressful Procedure

Veterinary Sciences, 2020
In mammals, serotonin (5-HT) levels depend on the availability of tryptophan (TRP). Low 5-HT concentrations have been linked to behavioural disorders in dogs.
Giacomo Riggio, Chiara Mariti, Valeria Sergi, Silvana Diverio, Angelo Gazzano   +4 more
doaj   +1 more source

Tryptophan and Kynurenine Pathway Metabolites in Animal Models of Retinal and Optic Nerve Damage: Different Dynamics of Changes

Frontiers in Physiology, 2019
Kynurenines, products of tryptophan (TRP) metabolism, display neurotoxic (e.g., 3-hydroxykynurenine; 3-HK), or neuroprotective (e.g., kynurenic acid; KYNA) properties. Imbalance between the enzymes constituting the kynurenine pathway (KP) plays a role in
Michal Fiedorowicz, Tomasz Choragiewicz, Sebastian Thaler, Frank Schuettauf, Dominika Nowakowska, Kamila Wojtunik, Michele Reibaldi, Teresio Avitabile, Tomasz Kocki, Waldemar A. Turski, Agnieszka Kaminska, Pawel Grieb, Eberhart Zrenner, Robert Rejdak, Robert Rejdak, Mario Damiano Toro, Mario Damiano Toro   +16 more
doaj   +1 more source

Disruption of SETD3‐mediated histidine‐73 methylation by the BWCFF‐associated β‐actin G74S mutation

FEBS Letters, EarlyView.
The β‐actin G74S mutation causes altered interaction of actin with SETD3, reducing histidine‐73 methylation efficiency and forming two distinct actin variants. The variable ratio of these variants across cell types and developmental stages contributes to tissue‐specific phenotypical changes. This imbalance may impair actin dynamics and mechanosensitive
Anja Marquardt, Marcus S. Münchhoff, Jacqueline Krohn, Philip M. Palarz, Manuel H. Taft, Johannes N. Greve, Nataliya Di Donato, Falk F. R. Buettner, Dietmar J. Manstein   +8 more
wiley   +1 more source

D-tryptophan triggered epithelial-mesenchymal transition by activating TGF-β signaling pathway

Food Science and Human Wellness, 2022
D-tryptophan is a special kind of nonprotein amino acid showing multiple physiological functions, but the detailed mechanisms are not fully revealed, impairing its further development and applications.
Chong Wang, Fangting Wang, Yanbo Wang, Linglin Fu   +3 more
doaj