Results 41 to 50 of about 23,946 (202)

Interaction of the Gut Microbiota and the Enteric Nervous System: Implications in Gastrointestinal Disorders Associated With Autism Spectrum Disorder

Autism Research, EarlyView.
ABSTRACT Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by impairments in social interaction, restricted interests, and repetitive behaviors. In addition to these core behavioral symptoms, gastrointestinal (GI) disorders are frequently reported, ranging from severe constipation to diarrhea.
Baptiste Ganachaud, María José Mendoza‐León, Justine Marchix, Alonso Fernandez Tello, Catherine Le Berre Scoul, Ma Cecilia Opazo, Michel Neunlist, Claudia A. Riedel, Martial Caillaud, Hélène Boudin   +9 more
wiley   +1 more source

Mechanism of phenylalanine regulation of phenylalanine hydroxylase.

Journal of Biological Chemistry, 1990
The mechanism of phenylalanine regulation of rat liver phenylalanine hydroxylase was studied. We show that phenylalanine "activates" phenylalanine hydroxylase, converting it from an inactive to active form, by binding at a true allosteric regulatory site.
R, Shiman, S H, Jones, D W, Gray
openaire   +2 more sources

Inherited metabolic epilepsies–established diseases, new approaches

Epilepsia Open, EarlyView.
Abstract Inherited metabolic epilepsies (IMEs) represent the inherited metabolic disorders (IMDs) in which epilepsy is a prevailing component, often determining other neurodevelopmental outcomes associated with the disorder. The different metabolic pathways affected by individual IMEs are the basis of their rarity and heterogeneity.
Itay Tokatly Latzer, Phillip L. Pearl
wiley   +1 more source

Elevated levels of plasma phenylalanine in schizophrenia: a guanosine triphosphate cyclohydrolase-1 metabolic pathway abnormality? [PDF]

PLoS ONE, 2014
BACKGROUND: Phenylalanine and tyrosine are precursor amino acids required for the synthesis of dopamine, the main neurotransmitter implicated in the neurobiology of schizophrenia.
Olaoluwa Okusaga, Olesja Muravitskaja, Dietmar Fuchs, Ayesha Ashraf, Sarah Hinman, Ina Giegling, Annette M Hartmann, Bettina Konte, Marion Friedl, Jason Schiffman, Elliot Hong, Gloria Reeves, Maureen Groer, Robert Dantzer, Dan Rujescu, Teodor T Postolache   +15 more
doaj   +1 more source

Combining phenotypic, physiological, and multi‐omics studies to provide new insights on the role of 2,4‐epibrassinolide in regulation of seed shattering in Elymus sibiricus L.

Grassland Research, EarlyView.
Abstract Background Seed shattering limits the production of Elymus sibiricus L., and application of exogenous brassinosteroid significantly alleviates plant organ abscission. Methods To explore the potential regulatory network of brassinosteroid on seed shattering, the abscission zone of E. sibiricus cv. Lanyu No.
Huanhuan Lu, Yiyang Wan, Liuban Tang, Yongsen Qiu, Yancui Zhao, Yuying Zheng, Wengang Xie   +6 more
wiley   +1 more source

Binuclear Copper‐Dependent Oxidative Enzymes Involved in Fungal Natural Product Modifications

Journal of the Chinese Chemical Society, EarlyView.
This article summarizes recent biochemical characterizations of a new enzyme family named by the authors as binuclear copper‐dependent oxidative enzymes (BiNCOs). Found in fungal natural product biosynthesis, BiNCOs catalyze diverse CH functionalization reactions, including C(sp3)H halogenation, C(sp3)H hydroxylation, C(sp3)O macrocyclization, and ...
Chen‐Yu Chiang, Masao Ohashi, Yi Tang
wiley   +1 more source

Mutation Analysis of PAH Gene in Phenylketonuria Patients from the North of Iran: Identification of Three Novel Pathogenic Variants

International Journal of Preventive Medicine
Background: There are more than 1100 different pathogenic variants in the phenylalanine hydroxylase (PAH) gene that are responsible for phenylketonuria (PKU) diseases, and the spectrum of these mutations varies in different ethnic groups.
Hossein Jalali, Daniel Zamanfar, Muhammad Amirzadegan, Farshide Ghadami, Mahan Mahdavi, Mohammad Reza Mahdavi   +5 more
doaj   +1 more source

High Protein Diet and Phenylalanine Hydroxylase Activities in Rats

Pteridines, 1989
The effects of a diet of 85% casein on the activities of the phenylalanine hydroxylases of rat liver and kidney have been compared. Whereas only the tetrahydrobiopterin-dependent activity of rat hepatic phenylalanine hydroxylase is significantly ...
Carty Michael P., Beirne Edel, Donlon John   +2 more
doaj   +1 more source

Caffeylpyruvate hydrolase from the bioluminescent fungus Neonothopanus gardneri is the key recycling enzyme in the fungal bioluminescence pathway

The FEBS Journal, EarlyView.
Caffeic acid is a central metabolite in the fungal bioluminescence pathway. We identified and characterized caffeylpyruvate hydrolase from Neonothopanus gardneri (ngarCPH) and demonstrate its ability to hydrolyze fungal oxyluciferin into caffeic and pyruvic acids, confirming a complete and self‐sustained fungal bioluminescence cycle.
Caio K. Zamuner, Douglas M. M. Soares, Bianca B. Nóbrega, Etelvino J. H. Bechara, Zinaida M. Kaskova, Alexander S. Mishin, Karen S. Sarkisyan, Ilia V. Yampolsky, Cassius V. Stevani   +8 more
wiley   +1 more source

Biopterin responsive phenylalanine hydroxylase deficiency [PDF]

Genetics in Medicine, 2004
Phenylketonuria (PKU) is an autosomal recessive disorder caused by mutations in the phenylalanine hydroxylase (PAH) gene. There have been more than 400 mutations identified in the PAH gene leading to variable degrees of deficiency in PAH activity, and consequently a wide spectrum of clinical severity.
Reuben, Matalon, Richard, Koch, Kimberlee, Michals-Matalon, Kathryn, Moseley, Sankar, Surendran, Stephen, Tyring, Heidi, Erlandsen, Alejandra, Gamez, Raymond C, Stevens, Anne, Romstad, Lisbeth B, Møller, Flemming, Guttler   +11 more
openaire   +2 more sources