52 results found
    1. Neuroscience

    Acute stress enhances adult rat hippocampal neurogenesis and activation of newborn neurons via secreted astrocytic FGF2

    Elizabeth D Kirby et al.
    Exposing rats to acute stress increased the generation of new neurons in a subregion of the hippocampus, and improved the animals' performance in a memory task two weeks later.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Native α-synuclein induces clustering of synaptic-vesicle mimics via binding to phospholipids and synaptobrevin-2/VAMP2

    Jiajie Diao et al.
    Experiments on synthetic models of synaptic vesicles have shed new light on the role of the protein α-synuclein in the central nervous system.
    1. Stem Cells and Regenerative Medicine
    2. Immunology and Inflammation

    MicroRNA-146a acts as a guardian of the quality and longevity of hematopoietic stem cells in mice

    Jimmy L Zhao et al.
    Chronic and excessive inflammation can lead to exhaustion of the supply of hematopoietic stem cells and to myeloid malignancies in mice, mimicking important aspects of the myelodysplastic syndrome found in humans.
    1. Chromosomes and Gene Expression

    Growth hormone-releasing hormone disruption extends lifespan and regulates response to caloric restriction in mice

    Liou Y Sun et al.
    Mice with a mutation that disrupts the release of growth hormone show greatly increased lifespan, which can be further increased by caloric restriction.
    1. Microbiology and Infectious Disease

    Insect endosymbiont proliferation is limited by lipid availability

    Jeremy K Herren et al.
    The endosymbiont Spiroplasma can only proliferate if it can acquire sufficient hemolymph lipids from its insect host.
    1. Neuroscience

    Knockdown of hypothalamic RFRP3 prevents chronic stress-induced infertility and embryo resorption

    Anna C Geraghty et al.
    A chronic stressor prior to mating has lasting negative consequences on the fertility and fecundity of female rats, which can be prevented by blocking a single hypothalamic reproductive inhibitory hormone.
    1. Cell Biology
    2. Human Biology and Medicine

    Lpcat3-dependent production of arachidonoyl phospholipids is a key determinant of triglyceride secretion

    Xin Rong et al.
    The enzyme Lpcat3 plays a unique role in the incorporation of arachidonic acid into membranes, which is required for the production of lipoproteins.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Malaria-associated atypical memory B cells exhibit markedly reduced B cell receptor signaling and effector function

    Silvia Portugal et al.
    Atypical memory B cells (MBCs) appear to differentiate from classical MBCs during chronic exposure to the malaria parasite Plasmodium falciparum, and may interfere with the acquisition of immunity to the disease.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Chromerid genomes reveal the evolutionary path from photosynthetic algae to obligate intracellular parasites

    Yong H Woo et al.
    Analysis of chromerid algal genomes reveals how apicomplexans have evolved from free-living algae into successful eukaryotic parasites via massive losses and re-inventing functional roles of genes.
    1. Immunology and Inflammation

    A pain-mediated neural signal induces relapse in murine autoimmune encephalomyelitis, a multiple sclerosis model

    Yasunobu Arima et al.
    Pain sensation induces relapse in a mouse model of multiple sclerosis via a sensory-sympathetic signaling pathway.

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