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Substrate transport and drug interaction of human thiamine transporters SLC19A2/A3.
Nat Commun
December 2024
ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Department of Systems Biology for Medicine, Fudan University, Shanghai, China.
Thiamine and pyridoxine are essential B vitamins that serve as enzymatic cofactors in energy metabolism, protein and nucleic acid biosynthesis, and neurotransmitter production. In humans, thiamine transporters SLC19A2 and SLC19A3 primarily regulate cellular uptake of both vitamins. Genetic mutations in these transporters, which cause thiamine and pyridoxine deficiency, have been implicated in severe neurometabolic diseases.
View Article and Find Full Text PDFRegulation of nucleus-encoded trans-acting factors allows orthogonal fine-tuning of multiple transgenes in the chloroplast of Chlamydomonas reinhardtii.
Plant Biotechnol J
December 2024
Department of Plant Sciences, University of Cambridge, Cambridge, UK.
The green microalga Chlamydomonas reinhardtii is a promising host organism for the production of valuable compounds. Engineering the Chlamydomonas chloroplast genome offers several advantages over the nuclear genome, including targeted gene insertion, lack of silencing mechanisms, potentially higher protein production due to multiple genome copies and natural substrate abundance for metabolic engineering. Tuneable expression systems can be used to minimize competition between heterologous production and host cell viability.
View Article and Find Full Text PDFExploring Distinct Second-Order Data Approaches for Thiamine Quantification via Carbon Dot/Silver Nanoparticle FRET Reversion.
Biosensors (Basel)
December 2024
LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal.
Accurate and selective monitoring of thiamine levels in multivitamin supplements is essential for preventing deficiencies and ensuring product quality. To achieve this, a Förster resonance energy transfer (FRET) system using carbon dots (CDs) as energy donors and citrate-stabilized silver nanoparticles (AgNPs) as energy acceptors was developed. The aqueous synthesis of AgNPs using microwave irradiation was optimized to obtain efficient plasmonic nanoparticles for FRET applications, targeting maximal absorbance intensity, stability, and wavelength alignment.
View Article and Find Full Text PDFElucidating metabolic pathways through genomic analysis in highly heavy metal-resistant strains.
Heliyon
December 2024
Research Laboratory of Environmental Sciences and Sustainable Development, LR18ES32, University of Sfax, Tunisia.
The annotated and predicted genomes of five archaeal strains (AS1, AS2, AS8, AS11 and AS19), isolated from Sfax solar saltern sediments (Tunisia) and affiliated with , were performed by RAST webserver (Rapid Annotation using Subsystem Technology) and NCBI prokaryotic genome annotation pipeline (PGAP). The results showed the ability of strains to use a reduced semi-phosphorylative Entner-Doudoroff pathway for glucose degradation and an Embden-Meyerhof one for gluconeogenesis. They could use glucose, fructose, glycerol, and acetate as sole source of carbon and energy.
View Article and Find Full Text PDFUtilizing data from the Vitamin C, Thiamine, and Steroids in Sepsis (VICTAS) Trial, this hub model was developed to limit seventeen Renin-Angiotensin-Aldosterone System (RAAS) components as three entrance and four exits, to facilitate the calculation of a model as one egress unknown, the angiotensin type 1 (AT1) receptor. Following previous evidence relating renin levels to mortality, this study found controls were more like sepsis patients with levels < renin quartile 1 (Q1) for calculated AT1, while more like sepsis patients with renin levels > quartile 3 (Q4) for measured aldosterone levels. Additionally differential discrete correlate summation (DCS) analysis indicates AT1, aldosterone and renin as major hub nodes in this independent DCS model of metabolic data inputs.
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