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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1911 1
1920 1
1921 4
1922 1
1924 1
1928 2
1929 1
1930 2
1931 2
1933 1
1934 1
1935 3
1936 3
1937 1
1938 2
1940 2
1942 1
1943 2
1944 2
1945 5
1946 11
1947 30
1948 43
1949 58
1950 48
1951 55
1952 52
1953 43
1954 52
1955 63
1956 65
1957 69
1958 88
1959 107
1960 92
1961 131
1962 163
1963 273
1964 440
1965 214
1966 181
1967 226
1968 267
1969 252
1970 268
1971 301
1972 327
1973 302
1974 353
1975 672
1976 647
1977 517
1978 560
1979 542
1980 622
1981 568
1982 541
1983 609
1984 610
1985 610
1986 616
1987 725
1988 627
1989 707
1990 811
1991 893
1992 815
1993 829
1994 779
1995 829
1996 879
1997 787
1998 837
1999 935
2000 949
2001 904
2002 952
2003 1060
2004 1071
2005 1203
2006 1229
2007 1309
2008 1333
2009 1466
2010 1409
2011 1460
2012 1553
2013 1714
2014 1678
2015 1762
2016 1766
2017 1861
2018 1981
2019 2138
2020 2393
2021 2651
2022 2854
2023 2763
2024 994

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57,921 results

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Page 1
Tryptophan Metabolism: A Link Between the Gut Microbiota and Brain.
Gao K, Mu CL, Farzi A, Zhu WY. Gao K, et al. Adv Nutr. 2020 May 1;11(3):709-723. doi: 10.1093/advances/nmz127. Adv Nutr. 2020. PMID: 31825083 Free PMC article. Review.
The gut microbial influence on tryptophan metabolism emerges as an important driving force in modulating tryptophan metabolism. ...We start by outlining existing knowledge on tryptophan metabolism, including serotonin synthesis and degradation pathways of the …
The gut microbial influence on tryptophan metabolism emerges as an important driving force in modulating tryptophan metabolism …
Systemic tryptophan homeostasis.
Klaessens S, Stroobant V, De Plaen E, Van den Eynde BJ. Klaessens S, et al. Front Mol Biosci. 2022 Sep 14;9:897929. doi: 10.3389/fmolb.2022.897929. eCollection 2022. Front Mol Biosci. 2022. PMID: 36188218 Free PMC article. Review.
TDO is stabilized when tryptophan is abundant in the plasma, resulting in rapid degradation of dietary tryptophan. In contrast, when tryptophan is scarce, TDO is degraded by the proteasome to avoid excessive tryptophan catabolism. ...
TDO is stabilized when tryptophan is abundant in the plasma, resulting in rapid degradation of dietary tryptophan. In contrast …
Tryptophan Metabolism and Gut Microbiota: A Novel Regulatory Axis Integrating the Microbiome, Immunity, and Cancer.
Hou Y, Li J, Ying S. Hou Y, et al. Metabolites. 2023 Nov 20;13(11):1166. doi: 10.3390/metabo13111166. Metabolites. 2023. PMID: 37999261 Free PMC article. Review.
Tryptophan metabolism and gut microbiota form an integrated regulatory axis that impacts immunity, metabolism, and cancer. This review consolidated current knowledge on the bidirectional interactions between microbial tryptophan processing and the host. We focused o
Tryptophan metabolism and gut microbiota form an integrated regulatory axis that impacts immunity, metabolism, and cancer. This revie
Analysis, Nutrition, and Health Benefits of Tryptophan.
Friedman M. Friedman M. Int J Tryptophan Res. 2018 Sep 26;11:1178646918802282. doi: 10.1177/1178646918802282. eCollection 2018. Int J Tryptophan Res. 2018. PMID: 30275700 Free PMC article. Review.
Tryptophan is an essential plant-derived amino acid that is needed for the in vivo biosynthesis of proteins. ...This brief integrated overview surveys and interprets our current knowledge of the reported multiple analytical methods for free and protein-bound tryptophan
Tryptophan is an essential plant-derived amino acid that is needed for the in vivo biosynthesis of proteins. ...This brief integrated
Expanding the application of tryptophan: Industrial biomanufacturing of tryptophan derivatives.
Xiao S, Wang Z, Wang B, Hou B, Cheng J, Bai T, Zhang Y, Wang W, Yan L, Zhang J. Xiao S, et al. Front Microbiol. 2023 Mar 23;14:1099098. doi: 10.3389/fmicb.2023.1099098. eCollection 2023. Front Microbiol. 2023. PMID: 37032885 Free PMC article. Review.
Tryptophan derivatives are various aromatic compounds produced in the tryptophan metabolic pathway, such as 5-hydroxytryptophan, 5-hydroxytryptamine, melatonin, 7-chloro-tryptophan, 7-bromo-tryptophan, indigo, indirubin, indole-3-acetic acid, violamyci
Tryptophan derivatives are various aromatic compounds produced in the tryptophan metabolic pathway, such as 5-hydroxytryptopha
Metabolic engineering for improving L-tryptophan production in Escherichia coli.
Niu H, Li R, Liang Q, Qi Q, Li Q, Gu P. Niu H, et al. J Ind Microbiol Biotechnol. 2019 Jan;46(1):55-65. doi: 10.1007/s10295-018-2106-5. Epub 2018 Nov 13. J Ind Microbiol Biotechnol. 2019. PMID: 30426284 Review.
However, challenges remain for L-tryptophan biosynthesis to be cost-competitive. In this review, successful and applicable strategies derived from metabolic engineering for increasing L-tryptophan accumulation in E. coli are summarized. In addition, perspectives for …
However, challenges remain for L-tryptophan biosynthesis to be cost-competitive. In this review, successful and applicable strategies …
The Role of Tryptophan and Tyrosine in Executive Function and Reward Processing.
Aquili L. Aquili L. Int J Tryptophan Res. 2020 Oct 22;13:1178646920964825. doi: 10.1177/1178646920964825. eCollection 2020. Int J Tryptophan Res. 2020. PMID: 33149600 Free PMC article. Review.
The serotonergic precursor tryptophan and the dopaminergic precursor tyrosine have been shown to be important modulators of mood, behaviour and cognition. ...Despite some clear differentiation with tryptophan, the data reviewed in this paper illustrates that tyrosin …
The serotonergic precursor tryptophan and the dopaminergic precursor tyrosine have been shown to be important modulators of mood, beh …
Posttranslational isoprenylation of tryptophan in bacteria.
Okada M, Sugita T, Abe I. Okada M, et al. Beilstein J Org Chem. 2017 Feb 22;13:338-346. doi: 10.3762/bjoc.13.37. eCollection 2017. Beilstein J Org Chem. 2017. PMID: 28326143 Free PMC article. Review.
In contrast, the Bacillus quorum sensing peptide pheromone, the ComX pheromone, possesses a posttranslationally modified tryptophan residue, and the tryptophan residue is isoprenylated with either a geranyl or farnesyl group at the gamma position to form a tricyclic …
In contrast, the Bacillus quorum sensing peptide pheromone, the ComX pheromone, possesses a posttranslationally modified tryptophan r …
Immunomodulatory, behavioral, and nutritional response of tryptophan application on poultry.
Linh NT, Guntoro B, Hoang Qui N. Linh NT, et al. Vet World. 2021 Aug;14(8):2244-2250. doi: 10.14202/vetworld.2021.2244-2250. Epub 2021 Aug 28. Vet World. 2021. PMID: 34566345 Free PMC article. Review.
Furthermore, tryptophan also has a strong relationship with lysine (the ideal tryptophan/lysine ratio) in improving growth performance. ...This paper tried to summarize all information about applying tryptophan in the diets and illustrate the roles of tryp
Furthermore, tryptophan also has a strong relationship with lysine (the ideal tryptophan/lysine ratio) in improving growth per …
A review of the immunomodulatory role of dietary tryptophan in livestock and poultry.
Bai M, Liu H, Xu K, Oso AO, Wu X, Liu G, Tossou MC, Al-Dhabi NA, Duraipandiyan V, Xi Q, Yin Y. Bai M, et al. Amino Acids. 2017 Jan;49(1):67-74. doi: 10.1007/s00726-016-2351-8. Epub 2016 Oct 24. Amino Acids. 2017. PMID: 27778165 Review.
Tryptophan, a nutritionally essential amino acid, is active in the regulation of immune responses in animals. ...The immune tolerance processes mediated by tryptophan metabolites are not well understood. Recent studies have reported that the enzymes that break down
Tryptophan, a nutritionally essential amino acid, is active in the regulation of immune responses in animals. ...The immune tolerance
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