2,470 results found
    1. Developmental Biology
    2. Neuroscience

    Extrinsic and intrinsic signals converge on the Runx1/CBFβ transcription factor for nonpeptidergic nociceptor maturation

    Siyi Huang et al.
    The extrinsic cue NGF and the intrinsic signal Islet1 converge at the level of the Runx1/CBFβ transcription factor complex formation to promote differentiation of a major nociceptor subtype.
    1. Microbiology and Infectious Disease

    Human gut Bacteroides capture vitamin B12 via cell surface-exposed lipoproteins

    Aaron G Wexler et al.
    The human gut bacterial lipoprotein BtuG binds vitamin B12 with femtomolar affinity, can remove vitamin B12 from human intrinsic factor, and is required for commensal fitness in the gut.
    1. Developmental Biology

    The transcription factor Pou3f1 promotes neural fate commitment via activation of neural lineage genes and inhibition of external signaling pathways

    Qingqing Zhu et al.
    The transcription factor Pou3f1 triggers embryonic stem cells to become neuronal progenitor cells in two ways: by activating the expression of pro-neuronal genes and by blocking external inhibitory signaling cascades.
    1. Neuroscience

    Multiple neurons encode CrebB dependent appetitive long-term memory in the mushroom body circuit

    Yves F Widmer et al.
    The transcription factor CrebB mediates long-term memory formation in different neurons within the mushroom body learning circuit, including mushroom body intrinsic and output neurons but not dopaminergic input neurons.
    1. Developmental Biology
    2. Neuroscience

    Extrinsic activin signaling cooperates with an intrinsic temporal program to increase mushroom body neuronal diversity

    Anthony M Rossi, Claude Desplan
    The activin ligand myoglianin acts as a temporal extrinsic cue to regulate the intrinsic temporal factor Imp in mushroom body neuroblasts, increasing neuronal diversity by specifying the α’β’ fate.
    1. Developmental Biology

    Muscle-derived Myoglianin regulates Drosophila imaginal disc growth

    Ambuj Upadhyay et al.
    A Drosophila myostatin-like factor provides an extrinsic signal produced by muscles that regulates Drosophila appendage development.
    1. Neuroscience

    Dynamic neuromuscular remodeling precedes motor-unit loss in a mouse model of ALS

    Éric Martineau et al.
    Motor axons undergo dynamic branch-specific changes for weeks before complete neuronal degeneration in a model of amyotrophic lateral sclerosis, highlighting the importance of peripheral factors, intrinsic and extrinsic to motoneurons.
    1. Neuroscience

    Amyotrophic Lateral Sclerosis: Marking the differences in motoneurons

    Simon A Sharples, Patrick J Whelan
    A subgroup of the neurons that control muscles becomes less excitable shortly before the symptoms of ALS develop.
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  1. Point of View: Four erroneous beliefs thwarting more trustworthy research

    Mark Yarborough et al.
    Strategies to improve public trust in biomedical research are being hindered by a scientific mindset that stifles interest in reform.
    1. Developmental Biology

    3D Imaging: Taking a closer look at whole organisms

    Noriko Ichino, Stephen C Ekker
    By enabling researchers to image whole zebrafish with cellular resolution, X-ray histotomography will improve our understanding of the biological differences between individuals of the same species.
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