Results 81 to 90 of about 12,760,006 (203)

Vitiligo, alkaptonuria, and nitisinone—A report of three families and review of the literature

open access: yesJIMD Reports, 2021
Four patients, from three families, with alkaptonuria receiving 4‐hydroxyphenylpyruvate dioxygenase‐inhibiting nitisinone therapy, which lowers homogentisic acid and increases tyrosine, developed vitiligo.
Lakshminarayan Ranganath   +5 more
doaj   +1 more source

Herbicide toxicity to Nitrospirillum amazonense: assessing bacterial survival and microbial functionality

open access: yesPest Management Science, Volume 82, Issue 2, Page 1842-1852, February 2026.
Herbicides elicit a spectrum of responses in Nitrospirillum amazonense, ranging from the stimulation of metabolic functions (biological nitrogen fixation, IAA production) to significant growth inhibition and acute toxicity. Abstract BACKGROUND Herbicides can exert significant toxicity on nontarget organisms, including plant growth‐promoting bacteria ...
Luana Carolina Gomes Jonck   +3 more
wiley   +1 more source

Inhibition of 4-hydroxyphenylpyruvate dioxygenase by 2-[2-nitro-4-(trifluoromethyl)benzoyl]-1,3-cyclohexanedione [PDF]

open access: yes, 2009
Triketone herbicides are inhibitors of 4-hydroxyphenylpyruvate dioxygenase (HPPD), a key enzyme of the tyrosine transformation pathway, common for plants and animals.
Molchanov, Sergey, Gryff-Keller, Adam
core  

The phytotoxic lichen metabolite, usnic acid, is a potent inhibitor of plant p-hydroxyphenylpyruvate dioxygenase [PDF]

open access: yes, 2000
The lichen secondary metabolite usnic acid exists as a (−) and a (+) enantiomer, indicating a α or β projection of the methyl group at position 9b, respectively.
Nanayakkara, N.P.Dhammika   +7 more
core   +1 more source

A Case of Tyrosinemia Type III with Status Epilepticus and Mental Retardation

open access: yesAdvanced Biomedical Research, 2018
Tyrosinemia type III is an autosomal recessive disorder caused by the deficiency of 4- hydroxyphenylpyruvate dioxygenase (4-HPPD). It is characterized by elevated levels of blood tyrosine and massive excretion of its derivatives into the urine.
Reza Najafi   +2 more
doaj   +1 more source

Therapeutic Monitoring of Patients With Hereditary Tyrosinemia Type 1—A Belgian Monocentric Experience

open access: yesJIMD Reports, Volume 67, Issue 1, January 2026.
ABSTRACT Hereditary tyrosinemia type I (HT‐1) is a rare metabolic disorder treated by NTBC, requiring careful therapeutic and nutritional monitoring. While follow‐up traditionally relies on urinary succinylacetone, plasma NTBC and plasma amino acids, dried blood spot (DBS) methods have introduced alternative monitoring options.
Anne‐Sophie Adam   +7 more
wiley   +1 more source

Assessment of genetically modified soybean GMB151 × DAS‐44406‐6 (application GMFF‐2024‐21774, EFSA‐Q‐2024‐00330)

open access: yesEFSA Journal, Volume 24, Issue 1, January 2026.
Abstract Genetically modified soybean GMB151 × DAS‐44406‐6 was developed by crossing to combine two single events: GMB151 and DAS‐44406‐6. The two‐event stack soybean expresses the Cry14Ab‐1, HPPD‐4, PAT, AAD‐12 and 2mEPSPS proteins to confer herbicide tolerance and resistance to plant parasitic nematodes.
EFSA Panel on Genetically Modified Organisms (GMO)   +28 more
wiley   +1 more source

3D-QSAR studies on 4-Hydroxyphenylpyruvate Dioxygenase inhibitors by comparative molecular field analysis (CoMFA)

open access: yes, 2002
A comparative molecular field analysis (CoMFA) of alkanoic acid 3-oxo-cyclohex-1-enyl ester and 2-acylcyclohexane-1,3-dione derivatives of 4-hydroxyphenylpyruvate dioxygenase inhibitors has been performed to determine the factors required for the ...
Yang, D-Y.   +4 more
core   +1 more source

The Incidence of Transient Neonatal Tyrosinemia Within a Mexican Population

open access: yesJournal of Inborn Errors of Metabolism and Screening, 2017
Transient neonatal tyrosinemia (TNT) is a form of hypertyrosinemia produced by the immaturity of 4-hydroxyphenylpyruvate dioxygenase (4-HPPD), a high intake of phenylalanine and tyrosine, and a relative ascorbic acid deficiency.
Alexandra V. Zea-Rey MD   +5 more
doaj   +1 more source

Multifaceted Study of Medicago marina Essential Oil: Chemical Composition, Antidiabetic, and Phytotoxic Insights via In Vitro and In Silico Approaches

open access: yesChemistry &Biodiversity, Volume 22, Issue 12, December 2025.
ABSTRACT The essential oil of Medicago marina was subjected to analysis at vegetative and reproductive stages of development, with a particular emphasis on its chemical composition, α‐amylase inhibition, and allelopathic activities. The results of the gas chromatography and molecular docking studies demonstrated alterations in oil yield and composition
Marwa Melliti   +9 more
wiley   +1 more source

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