3,788 results found
    1. Cell Biology
    2. Developmental Biology and Stem Cells

    Microscopy: Live imaging looks deeper

    Tanner C Fadero, Paul S Maddox
    Iodixanol provides an easy and affordable solution to a problem that has limited resolution and brightness when imaging living samples.
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    1. Cell Biology

    Spatiotemporal regulation of autophagy during Caenorhabditis elegans aging

    Jessica T Chang et al.
    Autophagic flux assays in the nematode Caenorhabditis elegans suggest that autophagy decreases during normal aging, whereas long-lived daf-2 and glp-1 mutants maintain autophagic capacity in distinct spatiotemporal-specific manners to extend lifespan.
    1. Neuroscience

    Live calcium and mitochondrial imaging in the enteric nervous system of Parkinson patients and controls

    An-Sofie Desmet et al.
    In contrast to previous post-mortem or fixed tissue histochemical reports, live calcium and mitochondrial imaging data suggest that the enteric nervous system is not generally affected in Parkinson's disease patients.
    1. Neuroscience

    Calcium dynamics regulating the timing of decision-making in C. elegans

    Yuki Tanimoto et al.
    A series of quantitative behavioural and opto-physiological analyses using a novel robot microscope system reveals that C. elegans computes the time-differential and time-integral of sensory information for decision-making during olfactory navigation.
    1. Neuroscience

    Rapid whole brain imaging of neural activity in freely behaving larval zebrafish (Danio rerio)

    Lin Cong et al.
    The integration of a novel high spatiotemporal resolution volume imaging technique and a fast 3D tracking system allows capturing whole brain neural activities in a freely behaving larval zebrafish.
    1. Neuroscience

    Two-photon calcium imaging of the medial prefrontal cortex and hippocampus without cortical invasion

    Masashi Kondo et al.
    Establishment of two-photon imaging with a 1100-nm laser, which underfills the objective's back aperture, detects activity of multiple neurons in the prelimbic area and hippocampal CA1 region of the intact mouse brain.
    1. Neuroscience

    SIR-2.1 integrates metabolic homeostasis with the reproductive neuromuscular excitability in early aging male Caenorhabditis elegans

    Xiaoyan Guo, L René García
    A protein called SIR-2.1 helps to protect worms from the effects of aging by regulating metabolic processes that would otherwise generate damaging reactive oxygen species.
    1. Biochemistry

    Age- and diet-associated metabolome remodeling characterizes the aging process driven by damage accumulation

    Andrei S Avanesov et al.
    Aging is a process characterized by gradual metabolome remodeling, deceleration of the remodeling in late life and under conditions that extend lifespan, and a mortality-associated pattern of cumulative damage.
    1. Biochemistry
    2. Computational and Systems Biology

    Protein biogenesis machinery is a driver of replicative aging in yeast

    Georges E Janssens et al.
    A comprehensive mapping of the proteome and transcriptome during the complete replicative lifespan of budding yeast predicted an increased abundance of the protein biogenesis machinery is most causal for aging.
    1. Biochemistry
    2. Biophysics and Structural Biology

    Cellular encoding of Cy dyes for single-molecule imaging

    Lilia Leisle et al.
    Cyanine fluorophores are encoded as non-canonical amino acids to produce functional proteins in cell-free translation systems and live cells for single-molecule imaging.

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