Results 91 to 100 of about 661,688 (260)

Growth Performance of Atlantic Salmon Smolts Fed Diets Containing Three Levels of a Single Cell Protein, Torula Yeast

open access: yesAquaculture, Fish and Fisheries, Volume 5, Issue 4, August 2025.
The use of alternative proteins ingredients is needed to support aquaculture. Yeast cells, a single cell protein ingredient, can be successfully incorporated into Atlantic salmon diets without affecting growth performance. ABSTRACT Atlantic salmon (Salmo salar) are globally cultured fish that are typically fed high protein and high lipid diets ...
Brian C. Peterson   +3 more
wiley   +1 more source

Cooperative Photometallobiocatalysis: Nonheme Fe Enzyme‐Catalyzed Enantioconvergent Radical Decarboxylative Azidation, Thiocyanation, and Isocyanation of Redox‐Active Esters

open access: yesAngewandte Chemie, Volume 137, Issue 29, July 14, 2025.
Through the directed evolution of an underexploited nonheme Fe extradiol dioxygenase, we developed a unified cooperative photobiocatalytic strategy to allow for three types of enantioconvergent radical transformations, including azidation, thiocyanation, and isocyanation.
Liu‐Peng Zhao   +8 more
wiley   +2 more sources

Positive transcriptional control of the pyridoxal phosphate biosynthesis genes pdxST by the MocR-type regulator PdxR of Corynebacterium glutamicum ATCC 13032.

open access: yesMicrobiology, 2011
The pdxR (cg0897) gene of Corynebacterium glutamicum ATCC 13032 encodes a regulatory protein belonging to the MocR subfamily of GntR-type transcription regulators and consisting of an amino-terminal winged helix-turn-helix DNA-binding domain and a ...
Nina Jochmann, Susanne Götker, A. Tauch
semanticscholar   +1 more source

Evaluating Effects of Antibiotics Across Preclinical Models of the Human Gastrointestinal Microbiota

open access: yesMicrobiologyOpen, Volume 14, Issue 4, August 2025.
We compared microbiota changes following antibiotic treatment in two preclinical models of the human GI microbiota, minibioreactor arrays (MBRAs) and human microbiota associated mice (HMAmice). MBRAs and HMAmice were colonized with feces from 12 or 3 healthy humans, respectively, before treatment with each of 12 or 6 antibiotics.
Thomas A. Auchtung   +3 more
wiley   +1 more source

From Amino Acids to α‐Keto Acids via β‐Elimination and Transamination Initiates a Pathway to Prebiotic Reaction Networks

open access: yesAngewandte Chemie, Volume 137, Issue 29, July 14, 2025.
A reaction starting from two amino acids, phosphoserine and Gly, reveals a pathway to the α‐keto acid building blocks pyruvate and glyoxylate, key components of a plausible early metabolic system. A one‐pot β‐elimination and transamination sequence also initiates a cascade of protometabolic transformations that provide crucial insights into the ...
Louis M.P. Ter‐Ovanessian   +5 more
wiley   +2 more sources

Outcome of Teriparatide Treatment on Fracture Healing Complications and Symptomatic Bone Marrow Edema in Four Adult Patients With Hypophosphatasia

open access: yesJBMR Plus, 2019
The response to teriparatide has been described in very few cases of hypophosphatasia (HPP). In this cross‐sectional study, we report the prevalence of symptomatic bone marrow edema (BME) and fracture healing complications in a large cohort of childhood ...
Tobias Schmidt   +6 more
doaj   +1 more source

Effect of blood contamination of cerebrospinal fluid on amino acids, biogenic amines, pterins and vitamins

open access: yesFluids and Barriers of the CNS, 2019
Background Cerebrospinal fluid (CSF) metabolomic investigations are a powerful tool for studying neurometabolic diseases. We aimed to assess the effect of CSF contamination with blood on the concentrations of selected biomarkers. Methods CSF samples were
Marta Batllori   +10 more
doaj   +1 more source

Biomedical aspects of pyridoxal 5'-phosphate availability.

open access: yesFrontiers in Bioscience, 2012
The biologically active form of vitamin B6, pyridoxal 5'-phosphate (PLP), is a cofactor in over 160 enzyme activities involved in a number of metabolic pathways, including neurotransmitter synthesis and degradation.
M. D. di Salvo, M. Safo, R. Contestabile
semanticscholar   +1 more source

Urinary Metabolic Biomarkers of Attentional Control in Children With Attention‐Deficit/Hyperactivity Disorder: A Dimensional Approach Through 1H NMR‐Based Metabolomics

open access: yesNMR in Biomedicine, Volume 38, Issue 8, August 2025.
This study identified five attentional control subgroups in school‐aged children, with and without ADHD, using VR‐based behavioral tests. NMR metabolomics revealed subgroup‐specific urinary metabolic profiles linked to energy and amino acid metabolism.
Ana del Mar Salmerón   +6 more
wiley   +1 more source

Late-onset drug-resistant epilepsy in pyridoxamine 5′-phosphate oxidase deficiency: a case report

open access: yesJournal of Medical Case Reports
Background Pyridoxamine 5′-phosphate oxidase deficiency is a rare inborn error of vitamin B6 metabolism that presents with drug-resistant epileptic seizures.
Erfan Naghavi   +8 more
doaj   +1 more source

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