Optimal Tryptophan Improved Growth and Regulated Agonistic Behavior of Oriental River Prawn, Macrobrachium nipponense [PDF]
Tryptophan, recognized as the third limiting amino acid, plays a crucial physiological function. The optimal tryptophan requirement for oriental river prawn (Macrobrachium nipponense) was assessed, and its impact on agonistic behavior was evaluated in ...
Shiqian Cao +5 more
doaj +2 more sources
Systemic tryptophan homeostasis
Tryptophan is an essential amino acid, which is not only a building block for protein synthesis, but also a precursor for the biosynthesis of co-enzymes and neuromodulators, such as NAD/NADP(H), kynurenic acid, melatonin and serotonin.
Simon Klaessens +9 more
doaj +4 more sources
Metabolic and Stress Responses in Senegalese Soles (Solea senegalensis Kaup) Fed Tryptophan Supplements: Effects of Concentration and Feeding Period [PDF]
The objective of this study was to assess the impact of different dietary Trp concentrations on the stress and metabolism response of juvenile Senegalese soles (Solea senegalensis).
Marcelino Herrera +6 more
doaj +6 more sources
Immunomodulatory, behavioral, and nutritional response of tryptophan application on poultry [PDF]
Tryptophan is an essential amino acid for all animals that was discovered through casein hydrolysis. The use of tryptophan as feed additives has been attracting the attention of many nutritionists because it cannot be synthesized enough in an animal's ...
Nguyen Thuy Linh +2 more
doaj +1 more source
Effect of Varying Levels of Dietary Tryptophan on Aggression and Abnormal Behavior in Growing Pigs
Body lesions, resulting from tail-biting and ear-biting, can result in decreased health and welfare in pigs. Tryptophan, an indispensable amino acid, is needed to support protein deposition, and the synthesis of the neurotransmitter serotonin, which is ...
Maggie Henry +4 more
doaj +1 more source
Background Tryptophan catabolites suppress immunity. Therefore, blocking tryptophan catabolism with indoleamine 2,3-dioxygenase (IDO) inhibitors is pursued as an anticancer strategy.Methods The intracellular level of tryptophan and kynurenine was ...
Yan Huang +10 more
doaj +1 more source
Tryptophan depletion results in tryptophan-to-phenylalanine substitutants
AbstractActivated T cells secrete interferon-γ, which triggers intracellular tryptophan shortage by upregulating the indoleamine 2,3-dioxygenase 1 (IDO1) enzyme1–4. Here we show that despite tryptophan depletion, in-frame protein synthesis continues across tryptophan codons.
Abhijeet Pataskar +23 more
openaire +8 more sources
Modulation of tryptophan/serotonin pathway by probiotic supplementation in human immunodeficiency virus-positive patients: preliminary results of a new study approach [PDF]
Background: To date, no data are available regarding the effects of probiotics on the pathway of tryptophan/serotonin metabolism among human immunodeficiency virus (HIV) 1–infected individuals.
Cavallari, Eugenio Nelson +14 more
core +9 more sources
Ulcerative colitis (UC) is a chronic and recurrent inflammatory disorder in the gastrointestinal tract. Here, we examined the pharmacological effects of ginsenoside Rg1, a natural compound with low bioavailability, on the acute experimental colitis mice ...
Hao Cheng +9 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]
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

