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Immunomodulatory, behavioral, and nutritional response of tryptophan application on poultry [PDF]

Veterinary World, 2021
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, Budi Guntoro, Nguyen Hoang Qui   +2 more
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Effect of Varying Levels of Dietary Tryptophan on Aggression and Abnormal Behavior in Growing Pigs

Frontiers in Veterinary Science, 2022
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, Anna Kate Shoveller, Terri L. O'Sullivan, Lee Niel, Robert Friendship   +4 more
doaj   +1 more source

Systemic tryptophan homeostasis

Frontiers in Molecular Biosciences, 2022
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, Simon Klaessens, Vincent Stroobant, Vincent Stroobant, Etienne De Plaen, Etienne De Plaen, Benoit J. Van den Eynde, Benoit J. Van den Eynde, Benoit J. Van den Eynde, Benoit J. Van den Eynde   +9 more
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Disruption of GPR35 Signaling in Bone Marrow-Derived Cells Does Not Influence Vascular Inflammation and Atherosclerosis in Hyperlipidemic Mice

Metabolites, 2021
G-protein-coupled receptor-35 (GPR35) has been identified as a receptor for the tryptophan metabolite kynurenic acid (KynA) and suggested to modulate macrophage polarization in metabolic tissues.
Roland Baumgartner, Felipe B. Casagrande, Randi B. Mikkelsen, Martin Berg, Konstantinos A. Polyzos, Maria J. Forteza, Aastha Arora, Thue W. Schwartz, Siv A. Hjorth, Daniel F. J. Ketelhuth   +9 more
doaj   +1 more source

Glycated Tryptophan in the Plasma of Chickens Fed Tryptophan-excess Diets

The Journal of Poultry Science, 2015
When tryptophan is glycated with glucose, it results in forming two types of glycated tryptophan, glucose-tryptophan Amadori product and (1R, 3S)-1-(D- gluco-1,2,3,4,5-pentahydroxypentyl)-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (PHP-THβC ...
Ryosuke Makino, Yoshimi Kawashima, Yuki Kajita, Toshiharu Namauo, Satoshi Ogawa, Hiroki Muraoka, Shinobu Fujimura, Kazumi Kita   +7 more
doaj   +1 more source

Detection of Two Types of Glycated Tryptophan Compounds in the Plasma of Chickens Fed Tryptophan Excess Diets

The Journal of Poultry Science, 2013
When tryptophan is glycated with glucose, it results in forming two types of glycated tryptophan compounds, glucose-tryptophan Amadori product and (1R, 3S)-1-(D-gluco-1,2,3,4,5-pentahydroxypentyl)-1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (PHP ...
Kazumi Kita, Yoshimi Kawashima, Ryosuke Makino, Toshiharu Namauo, Satoshi Ogawa, Hiroki Muraoka, Shinobu Fujimura   +6 more
doaj   +1 more source

Memory Enhancement with Kynurenic Acid and Its Mechanisms in Neurotransmission

Biomedicines, 2022
Kynurenic acid (KYNA) is an endogenous tryptophan (Trp) metabolite known to possess neuroprotective property. KYNA plays critical roles in nociception, neurodegeneration, and neuroinflammation.
Diána Martos, Bernadett Tuka, Masaru Tanaka, László Vécsei, Gyula Telegdy   +4 more
doaj   +1 more source

Metabolic and Stress Responses in Senegalese Soles (Solea senegalensis Kaup) Fed Tryptophan Supplements: Effects of Concentration and Feeding Period

Animals, 2019
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, Juan M. Miró, Inmaculada Giráldez, Natalia Salamanca, Juan A. Martos-Sitcha, Juan M. Mancera, Jose R. López   +6 more
doaj   +1 more source

Ginsenoside Rg1 Alleviates Acute Ulcerative Colitis by Modulating Gut Microbiota and Microbial Tryptophan Metabolism

Frontiers in Immunology, 2022
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, Juan Liu, Dandan Zhang, Jing Wang, Yuzhu Tan, Yuzhu Tan, Wuwen Feng, Wuwen Feng, Cheng Peng, Cheng Peng   +9 more
doaj   +1 more source

Effects of Dietary Supplementation of Acetate and L-Tryptophan Conjugated Bypass Amino Acid on Productivity of Pre- and Post-Partum Dairy Cows and Their Offspring

Animals, 2021
In this study, we investigated the effect of dietary supplementation with acetate and L-tryptophan-conjugated bypass amino acid (ACT) during late pregnancy on the production performance of cows pre- and postpartum and their offspring.
Jang-Hoon Jo, Jae-Sung Lee, Jalil Ghassemi Nejad, Won-Seob Kim, Jun-Ok Moon, Hong-Gu Lee   +5 more
doaj   +1 more source