Results 291 to 300 of about 1,354,207 (349)

Berberine ameliorates depression‐like behavior in CUMS mice by activating TPH1 and inhibiting IDO1‐associated with tryptophan metabolism

Phytotherapy Research, 2022
Berberine, which is a potential antidepressant, exhibits definite efficiency in modulating the gut microbiota. Depressive behaviors in mice induced using chronic unpredictable mild stress (CUMS) stimulation were evaluated by behavioral experiments.
Pingyuan Ge, Shu-Yue Qu, Sai-Jia Ni, Zeng-Ying Yao, Yi-Yu Qi, Xin Zhao, Rui Guo, Nianyun Yang, Qi-Chun Zhang, Huahe Zhu   +9 more
semanticscholar   +1 more source

Pu-erh Tea Restored Circadian Rhythm Disruption by Regulating Tryptophan Metabolism.

Journal of Agricultural and Food Chemistry, 2022
Pu-erh tea is a healthy beverage rich in phytochemicals, and its effect on the risk of inducing circadian rhythm disorders (CRD) is unclear. In this study, healthy mice were given water or 0.25% (w/v) Pu-erh tea for 7 weeks, followed by a 40 day ...
Shanshan Hu, Liyong Luo, X. Bian, R. Liu, Si-jia Zhao, Yu Chen, K. Sun, Jie-ling Jiang, Zhonghua Liu, L. Zeng   +9 more
semanticscholar   +1 more source

Tryptophan Metabolism in Rabbits

2003
Enzyme activities involved in tryptophan metabolism along the kynurenine pathway were studied in male New Zealand white rabbits. Activities are expressed both as specific activity and per g of fresh tissue. Liver tryptophan 2,3-dioxygenase activity (TDO), when assayed in either the absence (holoenzyme) or presence of added haematin (apoenzyme), did not
ALLEGRI, GRAZIELLA, RAGAZZI, EUGENIO, BERTAZZO, ANTONELLA, BIASIOLO M, COSTA, CARLO VIRGILIO LUIGI   +4 more
openaire   +4 more sources

Tryptophan Metabolism in Phenylketonurics

JAMA, 1961
ALTHOUGH the genetic defect in the hereditary disorder phenylketonuria has been related to the lack of one of the enzymes involved in the hydroxylation of phenylalanine, the cause of the mental retardation remains unknown. Bickel et al. 1 and other workers noted dramatic improvement in intelligence and developmental quotients of certain ...
Robert C. Baldridge, June Dobbs, Frederick A. Reichle, Marianne Trompetter   +3 more
openaire   +3 more sources

Fuzhuan Brick Tea Polysaccharide Improved Ulcerative Colitis in Association with Gut Microbiota-Derived Tryptophan Metabolism.

Journal of Agricultural and Food Chemistry, 2021
Fuzhuanbrick tea (FBT) has attracted wide attention because of its substantial nutritional value. This article first studied the protective mechanism of FBT polysaccharide (FBTP) on dextran sulfate sodium (DSS)-induced ulcerative colitis (UC) by 16S rDNA
W. Yang, Daoyuan Ren, Yan Zhao, Lei Liu, Xingbin Yang   +4 more
semanticscholar   +1 more source

Tryptophan Metabolism and Sleep

2015
Sleep and sleep medicine are in the limelight of the researchers for thousands of years. The definition of sleep started to change in the light of scientific experiments performed in the twentieth century, and the number of investigations on sleep medicine increased tremendously.
KÖKTÜRK, OĞUZ, KANBAY, ASİYE
openaire   +3 more sources

Metabolism of tryptophan in soil

Soil Biology and Biochemistry, 1993
Abstract Production of auxins in soil is stimulated by the addition of l -tryptophan ( l -Trp) as a precursor. Metabolism of l -Trp results in the formation of many products including niacin (kynurenine pathway) and serotonin (hydroxylation) in addition to auxins and is regulated by two distinct enzymes, L-TRP-2,3-dioxygenase (TDO) and indole-2,3 ...
William T. Frankenberger, D.A. Martens
openaire   +2 more sources

L-tryptophan metabolism in phenylketonuria

The Journal of Pediatrics, 1966
A disturbance of the intestinal transport of L-tryptophan and L-tyrosine secondary to the high blood phenylalanine content has been suggested. The L-tryptophan metabolic abnormalities observed in untreated phenylketonuria appear to be due to a transport defect of this amino acid.
John A. Anderson, Marina T. Yarbro
openaire   +3 more sources

Akkermansia muciniphila and its outer protein Amuc_1100 regulates tryptophan metabolism in colitis.

Food & Function, 2021
Dietary interventions, including dietary ingredients, nutrients and probiotics, exert anti-inflammatory effects in ulcerative colitis (UC). Our previous study showed that Akkermansia muciniphila (Akk), a promising probiotic, could protect against colitis
Zhenyang Gu, Wenlong Pei, Yonghua Shen, Lijuan Wang, J. Zhu, Yi Zhang, S. Fan, Qian Wu, Lei Li, Zhan Zhang   +9 more
semanticscholar   +1 more source

The Control of Tryptophan Metabolism

1975
This volume as a whole describes enzyme induction mechanisms and the influences of enzyme induction upon metabolism and its control. The present chapter deals with various ways in which the metabolism of a single amino acid tryptophan is controlled. While processes influencing this include induction, the de novo synthesis of enzymes which metabolize ...
openaire   +3 more sources