12 results found
    1. Cell Biology

    Exercise promotes the expression of brain derived neurotrophic factor (BDNF) through the action of the ketone body β-hydroxybutyrate

    Sama F Sleiman et al.
    A potential link between metabolic changes resulting from exercise and gene expression in the brain has been revealed.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Brain Size: Gene losses did not stop the evolution of big brains

    Cristian Cañestro, Vittoria Roncalli
    Elephants and fruit bats have evolved large brains even though they have lost a gene that is fundamental to the supply of energy to the brain when glucose is not available.
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    1. Cell Biology
    2. Medicine

    Remodeling of whole-body lipid metabolism and a diabetic-like phenotype caused by loss of CDK1 and hepatocyte division

    Jin Rong Ow et al.
    Loss of hepatic Cdk1 leads to oxidative stress, increased fatty acids in blood, and hyperinsulinemia, which resulted in insulin resistance and hepatic steatosis, similar as in diabetes.
    1. Biochemistry and Chemical Biology
    2. Ecology

    The energy savings-oxidative cost trade-off for migratory birds during endurance flight

    Scott McWilliams et al.
    Migratory birds with fuel stores composed of more omega-6 fats saved energy during long-duration flights, but this short-term energy saving came at the long-term cost of higher oxidative damage.
    1. Genetics and Genomics
    2. Neuroscience

    Sleep-promoting effects of threonine link amino acid metabolism in Drosophila neuron to GABAergic control of sleep drive

    Yoonhee Ki, Chunghun Lim
    Threonine promotes sleep via down-regulation of metabotropic GABA transmission in the ellipsoid body R2 neurons that generate homeostatic sleep drive in Drosophila.
    1. Structural Biology and Molecular Biophysics

    Epithelial magnesium transport by TRPM6 is essential for prenatal development and adult survival

    Vladimir Chubanov et al.
    Mice deficient in the TRPM6 channel suffer from impaired prenatal development, shortened lifespan, growth deficit and disturbed energy balance due to a defect in epithelial Mg2+ uptake, thus highlighting a pivotal role of TRPM6 in organismal Mg2+ homeostasis.
    1. Neuroscience

    Need-based prioritization of behavior

    C Joseph Burnett et al.
    A rich behavioral data set reveals the complex interactions and influence motivational systems have on one another, driving competition and optimal expression of behavior.
    1. Biochemistry and Chemical Biology

    Underground isoleucine biosynthesis pathways in E. coli

    Charles AR Cotton et al.
    Upon deletion of threonine deaminases, biosynthesis of isoleucine is rescued by two promiscuous reactions, one emerges under aerobic conditions and the other is naturally active under anaerobic conditions.
    1. Neuroscience

    The leak channel NALCN controls tonic firing and glycolytic sensitivity of substantia nigra pars reticulata neurons

    Andrew Lutas et al.
    Basal ganglia output neurons use the NALCN leak channel to maintain their characteristic tonic firing, and this channel is important for the modulation of firing by metabolic or receptor-mediated signals.
    1. Neuroscience

    Rapid purification and metabolomic profiling of synaptic vesicles from mammalian brain

    Lynne Chantranupong et al.
    Extensive mass spectrometry-based profiling of polar metabolites within synaptic vesicles that are rapidly isolated either from cultured mouse neurons or directly from mouse brains reveals their neurotransmitter composition.

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