88 results found
    1. Epidemiology and Global Health

    Sex differences in biological aging with a focus on human studies

    Sara Hägg, Juulia Jylhävä
    Biological aging processes and age-related diseases demonstrate sexual dimorphism where complex interactions between underlying aging mechanisms and sex chromosomes and hormones are seen in humans and animals.
    1. Neuroscience

    Male pheromones modulate synaptic transmission at the C. elegans neuromuscular junction in a sexually dimorphic manner

    Kang-Ying Qian et al.
    Male pheromone environment increases the cholinergic synaptic transmission at the neuromuscular junction in Caenorhabditis elegans hermaphrodites during development, decreasing hermaphrodites' locomotion activity and promoting mating efficiency.
    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. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Early postmortem mapping of SARS-CoV-2 RNA in patients with COVID-19 and the correlation with tissue damage

    Stefanie Deinhardt-Emmer et al.
    Early postmortem autopsy of COVID-19 patients shows high viral loads and damage of the lung, although extrapulmonary cells demonstrate no injury, they contribute to inflammation, hyper-coagulation, and multiple organ dysfunction.
    1. Genetics and Genomics

    GWAS of three molecular traits highlights core genes and pathways alongside a highly polygenic background

    Nasa Sinnott-Armstrong et al.
    Across urate, IGF-1, and testosterone, thousands of dispersed variants contribute to heritability, while previously characterized core pathways are highly enriched for associations and reveal feedback mechanisms governing serum biomarker levels.
    1. Neuroscience

    Behavioral role of PACAP signaling reflects its selective distribution in glutamatergic and GABAergic neuronal subpopulations

    Limei Zhang et al.
    Placing the PACAP/PAC1 signaling within glutamate/GABA cell type and subregional contexts in mouse brain reveals its conspicuous role for sensorimotor circuit interaction through modulating neuronal plasticity.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Formicine ants swallow their highly acidic poison for gut microbial selection and control

    Simon Tragust et al.
    Poison acidified crops sanitize food and limit disease transmission while at the same time structuring the gut microbiota and thus contribute to the ecological and evolutionary success of formicine ants.
    1. Stem Cells and Regenerative Medicine

    Pituitary stem cells produce paracrine WNT signals to control the expansion of their descendant progenitor cells

    John P Russell et al.
    Stem cells of the pituitary gland contribute to organ growth cell non-autonomously by promoting proliferation of committed progenitors through WNT ligand secretion.
    1. Genetics and Genomics

    Drosophila PDGF/VEGF signaling from muscles to hepatocyte-like cells protects against obesity

    Arpan C Ghosh et al.
    A muscle-derived signaling molecule suppresses excessive accumulation of lipids in the Drosophila adipose tissue by activating the Pi3K/Akt/mTOR signaling cascade in the Drosophila hepatocyte-like cells.
    1. Neuroscience

    Salivary and plasmatic oxytocin are not reliable trait markers of the physiology of the oxytocin system in humans

    Daniel Martins et al.
    Single measurements of baseline salivary and plasmatic oxytocin are not sufficiently reliable to provide valid trait markers of the physiology of the oxytocin system in humans.

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