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    1. Ecology
    Deer mouse illustration

    The Natural History of Model Organisms: Peromyscus mice as a model for studying natural variation

    Nicole L Bedford, Hopi E Hoekstra
    The deer mouse (Peromyscus) has emerged as a model system for studying many aspects of biology, supported by extensive historical knowledge of its fascinating and varied natural history.
    1. Medicine

    Lipocalin-2 is an anorexigenic signal in primates

    Peristera-Ioanna Petropoulou et al.
    Lipocalin-2 is a strong predictor of hunger scores, reflects an anti-obesity response that is deregulated in severely obese subjects, and exerts an anorexigenic function with a conserved interspecies mechanism.
    1. Neuroscience

    A big-data approach to understanding metabolic rate and response to obesity in laboratory mice

    June K Corrigan et al.
    The metabolic rate of mice is disproportionately affected by the site of experimentation, affecting the phenotypic interpretation of genetically modified strains.
    1. Neuroscience

    Plasticity of calcium-permeable AMPA glutamate receptors in Pro-opiomelanocortin neurons

    Shigetomo Suyama et al.
    Neurons in the hypothalamus that promote satiety manifest plasticity of their response to the excitatory transmitter, glutamate, by re-organizing the composition of a specific glutamare receptor.
    1. Neuroscience

    Hunger neurons drive feeding through a sustained, positive reinforcement signal

    Yiming Chen et al.
    Hunger neurons promote feeding by triggering a long-lasting potentiation of the rewarding properties of food.
    1. Neuroscience

    An opioid-like system regulating feeding behavior in C. elegans

    Mi Cheong Cheong et al.
    The discovery that opioid neuropeptide neuronal signaling controls feeding behavior in a genetically tractable invertebrate model may help unravel the mechanisms of appetite control in humans.
    1. Neuroscience

    Central Dicer-miR-103/107 controls developmental switch of POMC progenitors into NPY neurons and impacts glucose homeostasis

    Sophie Croizier et al.
    Loss miRNA maturation in proopiomelanocortin (POMC) neurons causes metabolic dysregulation and favors the differentiation of Pomc progenitors into neuropeptide Y neurons, a developmental process that appears to specifically involve miR-103/107.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Increased longevity due to sexual activity in mole-rats is associated with transcriptional changes in the HPA stress axis

    Arne Sahm et al.
    The fact that sexual activity/reproduction doubles the lifespan of certain rodent species is most likely linked to critical changes in the regulation of the hypothalamic–pituitary–adrenal stress axis.
    1. Cell Biology

    CB1R regulates soluble leptin receptor levels via CHOP, contributing to hepatic leptin resistance

    Adi Drori et al.
    The hepatic endocannabinoid/CB1R system controls the soluble leptin receptor’s expression and/or subsequent release by Trib3-induced regulation of C/EBP homologous protein levels in hepatocytes to affect leptin signaling in the liver.
    1. Chromosomes and Gene Expression

    Reassessment of the involvement of Snord115 in the serotonin 2c receptor pathway in a genetically relevant mouse model

    Jade Hebras et al.
    Knockout of Snord115 has mild impact on expression and function of the serotonin 2C receptor.