4,852 results found
    1. Biochemistry and Chemical Biology

    Lipid polarity gradient formed by ω-hydroxy lipids in tear film prevents dry eye disease

    Masatoshi Miyamoto et al.
    (O-Acyl)-ω-hydroxy fatty acids and their derivatives, produced by the fatty acid ω-hydroxylase Cyp4f39, form a lipid polarity gradient in the lipid layer of the tear film and prevent dry eye.
    1. Genetics and Genomics
    2. Plant Biology

    Contesting the presence of wheat in the British Isles 8,000 years ago by assessing ancient DNA authenticity from low-coverage data

    Clemens L Weiß et al.
    A computational method to authenticate low-coverage ancient DNA experiments shows that putative wheat sequences from 8000 years old sediments are most likely not of ancient origin.
    1. Neuroscience

    Predicting development of adolescent drinking behaviour from whole brain structure at 14 years of age

    Simone Kühn et al.
    Trajectories of adolescent drinking behavior between age 14 and 19 years can be predicted from bilateral striatal and cerebellar grey matter at 14 years of age.
    1. Epidemiology and Global Health

    Longitudinal trajectories, correlations and mortality associations of nine biological ages across 20-years follow-up

    Xia Li et al.
    Biological ages have the potential to provide aging-related information beyond chronological age and can be predictive of mortality independently of both chronological age and different types of biological ages.
    1. Computational and Systems Biology
    2. Neuroscience

    Neural tuning matches frequency-dependent time differences between the ears

    Victor Benichoux et al.
    Complex properties of space-sensitive auditory neurons in cats mirror the complexity of acoustical environments.
    1. Evolutionary Biology

    Multifactorial processes underlie parallel opsin loss in neotropical bats

    Alexa Sadier et al.
    Parallel losses of short-wave light sensitivity in diverse bats occurred through independent changes at multiple steps in the conversion of genotype into functional phenotype, including pre-, during, and post-transcription.
    1. Immunology and Inflammation

    Expression levels of MHC class I molecules are inversely correlated with promiscuity of peptide binding

    Paul E Chappell et al.
    The number of different peptides presented by major histocompatibility complex class I molecules to the immune system's T lymphocytes is inversely correlated with cell surface expression and is strongly associated with the response to infectious disease.
    1. Developmental Biology
    2. Genetics and Genomics

    Castration delays epigenetic aging and feminizes DNA methylation at androgen-regulated loci

    Victoria J Sugrue et al.
    Epigenetic clocks are an accurate measure of biological aging and 'tick' slower in male sheep that are castrated.
    1. Cell Biology
    2. Physics of Living Systems

    Stoichiometric interactions explain spindle dynamics and scaling across 100 million years of nematode evolution

    Reza Farhadifar et al.
    Stoichiometric interactions between microtubules and cortical force-generators set spindle size, position and dynamics, and its scaling with cell size in nematode species.
    1. Evolutionary Biology

    Rampant tooth loss across 200 million years of frog evolution

    Daniel J Paluh et al.
    Teeth are maintained in two amphibian groups (caecilians and salamanders) but were lost in frogs over 20 times independently, a higher incidence of edentulism than any other major vertebrate group.

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