Alterations of endotoxin distribution across different biofluids and relevant inflammatory responses by supplementing L-theanine in dairy cows during heat stress
Sign Up to like & getrecommendations! Published in 2021 at "Animal Nutrition"
DOI: 10.1016/j.aninu.2021.03.012
Abstract: The present trial was performed to reveal the regulatory effects of L-theanine on the levels of lipopolysaccharide (LPS) endotoxin within different biofluids, as well as relevant inflammatory responses of dairy cattle under heat stress conditions.… read more here.
Keywords: heat stress; dairy cows; theanine;
Enzymatic synthesis of L-theanine from L-glutamine and ethylamine by Bacillus licheniformis γ-glutamyltranspeptidase and its mutants specialized in transpeptidase activity
Sign Up to like & getrecommendations! Published in 2019 at "Biocatalysis and Agricultural Biotechnology"
DOI: 10.1016/j.bcab.2019.101393
Abstract: Abstract In this investigation, Bacillus licheniformis γ-glutamyltranspeptidase (BlGGT) together with its two transpeptidase-specialized mutants (N450D and N450Q) were employed for the biocatalytic synthesis of L -theanine. A high-pressure liquid chromatographic method coupled with ultraviolet detection… read more here.
Keywords: synthesis theanine; theanine; bacillus licheniformis; synthesis ... See more keywords
L-theanine relieves acute alcoholic liver injury by regulating the TNF-α/NF-κB signaling pathway in C57BL/6J mice
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Functional Foods"
DOI: 10.1016/j.jff.2021.104699
Abstract: Abstract Acute alcoholic liver injury (AALI) refers to the inflammatory hepatic damage caused by alcohol. In severe cases, it can lead to steatohepatitis, alcoholic fibrosis and even cirrhosis. In this study, we analyzed the hepatoprotective… read more here.
Keywords: mice; alcoholic liver; injury; theanine ... See more keywords
The role of glutamine in neurogenesis promoted by the green tea amino acid theanine in neural progenitor cells for brain health
Sign Up to like & getrecommendations! Published in 2019 at "Neurochemistry International"
DOI: 10.1016/j.neuint.2019.104505
Abstract: The green tea amino acid theanine is abundant in green tea rather than black and oolong teas, which are all made of the identical tea plant "Chanoki" (Camellia sinensis). Theanine has a molecular structure close… read more here.
Keywords: amino acid; theanine; green tea; tea ... See more keywords
Protective Effect of l-Theanine against DSS-Induced Colitis by Regulating the Lipid Metabolism and Reducing Inflammation via the NF-κB Signaling Pathway.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of agricultural and food chemistry"
DOI: 10.1021/acs.jafc.1c05839
Abstract: The present study revealed the phylactic effects of l-theanine on a DSS-induced colitis mice model. The results showed that 3% DSS treatment significantly induced intestinal damage as reflected by DAI, histopathological feature, and colon length,… read more here.
Keywords: induced colitis; dss induced; signaling pathway; theanine ... See more keywords
l-Theanine Inhibits (-)-Epigallocatechin-3-gallate Oxidation via Chelating Copper.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of agricultural and food chemistry"
DOI: 10.1021/acs.jafc.2c01379
Abstract: Our recent study showed that glutamate can inhibit dopamine oxidation via chelating copper. l-Theanine is an amino acid analogue of glutamate, whereas tea (-)-epigallocatechin-3-gallate (EGCG) is similar to dopamine in avidly undergoing oxidation. We thus… read more here.
Keywords: oxidation via; oxidation; theanine; copper ... See more keywords
Oral administration of Cystine and Theanine ameliorates oxaliplatin-induced chronic peripheral neuropathy in rodents
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-69674-9
Abstract: Oxaliplatin frequently causes severe peripheral neuropathy as a dose-limiting toxicity. However, this toxicity lacks a strategy for prevention. Cystine/Theanine is a supplement, which includes precursors for the biosynthesis of glutathione. In this study, we investigated… read more here.
Keywords: oxaliplatin induced; theanine; peripheral neuropathy; administration cystine ... See more keywords
L-theanine improves neurophysiological measures of attention in a dose-dependent manner: a double-blind, placebo-controlled, crossover study
Sign Up to like & getrecommendations! Published in 2020 at "Nutritional Neuroscience"
DOI: 10.1080/1028415x.2020.1804098
Abstract: ABSTRACT Objective: L-theanine, a non-proteinic amino acid found in tea, is known to enhance attention particularly in high doses, with no reported adverse effects. We aimed to determine whether oral administration of L-theanine acutely enhances… read more here.
Keywords: placebo; attention; dose dependent; dependent manner ... See more keywords
Dose-response effect of L-theanine on psychomotor speed, sustained attention, and inhibitory control: a double-blind, placebo-controlled, crossover study.
Sign Up to like & getrecommendations! Published in 2022 at "Nutritional neuroscience"
DOI: 10.1080/1028415x.2022.2136884
Abstract: BACKGROUND L-theanine is a non-protein-forming amino acid found in tea. Previous research shows high doses (100-400 mg) of L-theanine enhances attention, mainly by reducing mind wandering and distracter processing. We hypothesized that these indirect mechanisms could… read more here.
Keywords: theanine; sustained attention; control; placebo ... See more keywords
Theanine, a tea-plant-specific non-proteinogenic amino acid, is involved in the regulation of lateral root development in response to nitrogen status
Sign Up to like & getrecommendations! Published in 2022 at "Horticulture Research"
DOI: 10.1093/hr/uhac267
Abstract: Abstract Glutamine synthetase type I (GSI)-like proteins are proposed to mediate nitrogen signaling and developmental fate by synthesizing yet unidentified metabolites. Theanine, the most abundant non-proteinogenic amino acid in tea plants, is the first identified… read more here.
Keywords: theanine; development; tea; lateral root ... See more keywords
CsAAP7.2 is involved in the uptake of amino acids from soil and the long-distance transport of theanine in tea plants (Camellia sinensis L.).
Sign Up to like & getrecommendations! Published in 2022 at "Tree physiology"
DOI: 10.1093/treephys/tpac071
Abstract: Tea plant roots can uptake both inorganic nitrogen (NH4+ and NO3-) and organic nitrogen (amino acids) from soil. These amino acids are subsequently assimilated into theanine and transported to young shoots through xylem. Our previous… read more here.
Keywords: amino acids; theanine; acids soil; csaap7 ... See more keywords