152 results found
    1. Neuroscience

    The activity-dependent histone variant H2BE modulates the life span of olfactory neurons

    Stephen W Santoro, Catherine Dulac
    A genome-organizing protein that is present only in the olfactory system of mice has been found to orchestrate changes in the relative numbers of different odor-sensing neurons on the basis of how active these neurons are.
    1. Neuroscience

    Recognition of familiar food activates feeding via an endocrine serotonin signal in Caenorhabditis elegans

    Bo-mi Song et al.
    The nematode worm C. elegans consumes familiar bacterial species more rapidly than it does novel ones, and this preference for familiarity is mediated by a pair of serotonergic neurons.
    1. Human Biology and Medicine

    Stochastic homeostasis in human airway epithelium is achieved by neutral competition of basal cell progenitors

    Vitor H Teixeira et al.
    Cell replenishment within the airways is governed by the random division of a population of basal progenitor cells, in a process that is accelerated in smokers.
    1. Structural Biology and Molecular Biophysics

    CO2 directly modulates connexin 26 by formation of carbamate bridges between subunits

    Louise Meigh et al.
    A CO2 receptor and a mechanism for the CO2-mediated opening of gap junction hemichannels have been identified.
    1. Biochemistry and Chemical Biology
    2. Ecology

    Sex-specific triacylglycerides are widely conserved in Drosophila and mediate mating behavior

    Jacqueline SR Chin et al.
    Triacylglycerides found in the males of 11 species of Drosophila form a largely overlooked, novel, sex-specific class of pheromones that act to suppress courtship behaviour.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    A high-resolution morphological and ultrastructural map of anterior sensory cilia and glia in Caenorhabditis elegans

    David B Doroquez et al.
    The three-dimensional structures of 50 sensory cilia present in the head of the adult C. elegans hermaphrodite have been reconstructed to provide a foundation for investigations into the mechanisms by which the diversity of cilia structures is generated and how this structural diversity is related to specific sensory neuron functions.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Structure of bacterial cytoplasmic chemoreceptor arrays and implications for chemotactic signaling

    Ariane Briegel et al.
    Bacterial cytoplasmic chemoreceptors assemble into a sandwich of two hexagonally packed arrays.
    1. Evolutionary Biology

    Evolution of insect olfactory receptors

    Christine Missbach et al.
    Insect specific olfactory receptors are not an adaptation to a terrestrial insect lifestyle, but evolved later in insect evolution.
    1. Neuroscience

    Sex-specific processing of social cues in the medial amygdala

    Joseph F Bergan et al.
    Male and female mice respond differently to the same pheromone signals, and the representation of these sensory stimuli by neurons in the medial amygdala correlates precisely with the differences in behavior.
    1. Neuroscience

    Caenorhabditis elegans male sensory-motor neurons and dopaminergic support cells couple ejaculation and post-ejaculatory behaviors

    Brigitte LeBoeuf et al.
    In nematode worms, the length of the male refractory period–the time between matings–is regulated by multiple transmitters including dopamine, which both promotes ejaculation and reduces the activity of males post-copulation.

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