22 results found
    1. Cell Biology

    Adiponectin is essential for lipid homeostasis and survival under insulin deficiency and promotes β-cell regeneration

    Risheng Ye, William L Holland ... Philipp E Scherer
    Under insulinopenic conditions, the hormone adiponectin is essential for lipid uptake specifically in subcutaneous white adipose tissue, and is sufficient to ameliorate islet lipotoxicity.
    1. Computational and Systems Biology
    2. Genetics and Genomics

    A metabolic modeling-based framework for predicting trophic dependencies in native rhizobiomes of crop plants

    Alon Avraham Ginatt, Maria Berihu ... Shiri Freilich
    Understanding metabolic interactions and successive cross-feeding in native microbiomes illuminates the mechanisms behind plant disease promotion and suppression, enhancing our ability to manipulate microbiomes toward specific functions of interest.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Evidence for a DNA-relay mechanism in ParABS-mediated chromosome segregation

    Hoong Chuin Lim, Ivan Vladimirovich Surovtsev ... Christine Jacobs-Wagner
    In vitro, in vivo and in silico evidence suggests that bacteria exploit intrinsic chromosomal fluctuations to achieve intracellular transport.
    1. Microbiology and Infectious Disease

    A coordinated transcriptional switching network mediates antigenic variation of human malaria parasites

    Xu Zhang, Francesca Florini ... Kirk W Deitsch
    Malaria parasites avoid destruction by their host's immune response through systematic and coordinated expression switching between members of a network of variant antigen-encoding genes, a process that is mediated by a uniquely conserved gene called var2csa.
    1. Neuroscience

    Layer 2/3 pyramidal cells in the medial prefrontal cortex moderate stress induced depressive behaviors

    Prerana Shrestha, Awni Mousa, Nathaniel Heintz
    The well-established link between stress and depression could be due to the activity of a population of cells in prefrontal cortex that express a gene mutated in the rare disorder Wolfram syndrome.
    1. Neuroscience

    The activity-dependent histone variant H2BE modulates the life span of olfactory neurons

    Stephen W Santoro, Catherine Dulac
    A genome-organizing protein that is present only in the olfactory system of mice has been found to orchestrate changes in the relative numbers of different odor-sensing neurons on the basis of how active these neurons are.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A Histidine pH sensor regulates activation of the Ras-specific guanine nucleotide exchange factor RasGRP1

    Yvonne Vercoulen, Yasushi Kondo ... Jeroen P Roose
    The Ras activator RasGRP1 that impacts Ras signals in immune cells, leukemias, and colorectal cancer, switches to an active conformation aided by a pH-sensitive histidine residue in a central location of the RasGRP1 molecule.
    1. Structural Biology and Molecular Biophysics

    Observation of long-range tertiary interactions during ligand binding by the TPP riboswitch aptamer

    Van K Duesterberg, Irena T Fischer-Hwang ... Steven M Block
    The combined use of optical trapping and single-molecule FRET permits the study of riboswitch structure formation and conformational dynamics at the same time.
    1. Cell Biology

    High-altitude hypoxia exposure inhibits erythrophagocytosis by inducing macrophage ferroptosis in the spleen

    Wan-ping Yang, Mei-qi Li ... Qian-qian Luo
    Hypobaric hypoxia exposure initiates splenic ferroptosis, reducing red pulp macrophages and exacerbating high-altitude polycythemia by impairing erythrophagocytosis and increasing red blood cell retention.
    1. Neuroscience

    Ribosomal profiling during prion disease uncovers progressive translational derangement in glia but not in neurons

    Claudia Scheckel, Marigona Imeri ... Adriano Aguzzi
    Cell-type-specific ribosome profiling during prion disease progression identified minor translational changes in neurons as well as profound glia changes many of which are shared with other neurodegenerative diseases.

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