Cells must continuously adjust metabolic output to maintain homeostasis under changing environmental conditions, yet the mechanisms that enable rapid and reversible control of pathway activity remain largely unknown. The methylerythritol phosphate (MEP) pathway, of bacterial origin and conserved ...

Antibiotics were once used in animal production to improve productivity and resistance to pathogenic microbiota. However, due to its negative effects, the search for a new class of substances that can replace its efficacy has become one of the urgent problems to be solved. Plant essential oils (E...

Aromatic amino acids are essential precursors for numerous plant metabolites, with phenylalanine (Phe) forming the basis of the phenylpropanoid pathway. Here, we reveal a critical mechanism for Phe biosynthesis in maize, demonstrating that all seven arogenate dehydratases (ADTs) are specifically ...

Processive catalysis is a fundamental molecular mechanism in nature to both build and dismantle complex biological polymers such as nucleic acids, proteins and carbohydrates, underpinning a broad spectrum of biotechnological applications. Here, we uncover a processive mechanism for the breakdown ...

OBJECTIVE: To observe the clinical efficacy and safety of Yiqi Yangxue formula (YQYXF) on knee osteoarthritis (KOA), and to explore the underlying therapeutic mechanism of YQYXF through endogenous differential metabolites and their related metabolic pathways.

METHOD...

Temperature is a critical environmental factor influencing fish physiology. Eleutheronema tetradactylum is an economically important warm-water species, but its response to long-term cold stress remains unclear. In this study, we exposed juvenile fish to 18 °C for 7 and 14 days and investigated h...