Results 21 to 30 of about 1,021,136 (197)

Method development and validation for analysis of phenylalanine, 4‐hydroxyphenyllactic acid and 4‐hydroxyphenylpyruvic acid in serum and urine

open access: yesJIMD Reports, 2022
Alkaptonuria (AKU) is a rare debilitating autosomal recessive disorder of tyrosine (TYR) metabolism which results in a deficiency of the enzyme homogentisate 1,2‐dioxygenase activity.
Andrew T. Hughes   +4 more
doaj   +1 more source

High intensity interval training exercise increases dopamine D2 levels and modulates brain dopamine signaling

open access: yesFrontiers in Public Health, 2023
BackgroundPrevious research has outlined the health benefits of exercise including its therapeutic potential for substance use disorders (SUD). These data have already been utilized and it is now common to find exercise as part of SUD treatment and ...
John Tyler   +14 more
doaj   +1 more source

Curcumin-driven reprogramming of the gut microbiota and metabolome ameliorates motor deficits and neuroinflammation in a mouse model of Parkinson’s disease

open access: yesFrontiers in Cellular and Infection Microbiology, 2022
BackgroundParkinson’s disease (PD) is a common neurodegenerative disorder, accompanied by motor deficits as well as gastrointestinal dysfunctions.
Can Cui   +5 more
doaj   +1 more source

The Vav GEF Family: An Evolutionary and Functional Perspective

open access: yesCells, 2019
Vav proteins play roles as guanosine nucleotide exchange factors for Rho GTPases and signaling adaptors downstream of protein tyrosine kinases. The recent sequencing of the genomes of many species has revealed that this protein family originated in ...
Sonia Rodríguez-Fdez, Xosé R. Bustelo
doaj   +1 more source

Hierarchical graphene oxide-Ni3S2 quantum dots nanocomposites modified glassy carbon electrode for electrochemical detection of dopamine and tyrosine

open access: yesFrontiers in Materials, 2023
A facile synthetic strategy is demonstrated to generate nickel sulfide quantum dots (Ni3S2). The thus formed Ni3S2 quantum dots are assembled onto exfoliated graphene oxide sheets hydrothermally to form nickel sulfide-graphene oxide nanocomposite ...
M. Hasheena   +4 more
doaj   +1 more source

Effects of Dietary Phenylalanine and Tyrosine Supplements on the Chronic Stress Response in the Seabream (Sparus aurata)

open access: yesFrontiers in Physiology, 2022
The increase of aquaculture production is associated with a growing interest in improving physiological status and welfare in fish. For this reason, the search for strategies for mitigating stress has been intensified, with one of these strategies being ...
Natalia Salamanca   +6 more
doaj   +1 more source

Tyrosine kinase inhibitors for solid tumors in the past 20 years (2001–2020)

open access: yesJournal of Hematology & Oncology, 2020
Tyrosine kinases are implicated in tumorigenesis and progression, and have emerged as major targets for drug discovery. Tyrosine kinase inhibitors (TKIs) inhibit corresponding kinases from phosphorylating tyrosine residues of their substrates and then ...
Liling Huang, Shiyu Jiang, Yuankai Shi
semanticscholar   +1 more source

Increased prevalence of Parkinson's disease in alkaptonuria

open access: yesJIMD Reports, 2023
Amongst a cohort of 88 alkaptonuria (AKU) patients attending the United Kingdom National Alkaptonuria Centre (NAC), four unrelated patients had co‐existing Parkinson's disease (PD).
Lakshminarayan Ranganath   +8 more
doaj   +1 more source

Gut bacterial tyrosine decarboxylases restrict levels of levodopa in the treatment of Parkinson’s disease

open access: yesNature Communications, 2019
Human gut microbiota senses its environment and responds by releasing metabolites, some of which are key regulators of human health and disease. In this study, we characterize gut-associated bacteria in their ability to decarboxylate levodopa to dopamine
S. V. van Kessel   +6 more
semanticscholar   +1 more source

L-DOPA Trends in Different Tissues at Early Stages of Vicia faba Growth: Effect of Tyrosine Treatment

open access: yesApplied Sciences, 2018
The nonprotein amino acid Levo-3,4-dihydroxyphenylalanine (L-DOPA) has insecticidal, allelochemical, and antiparkinsonian effects. The aim of this research was to assess L-DOPA content in different tissues of Vicia faba (cv.
Claudia A. Oviedo-Silva   +2 more
doaj   +1 more source

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