1,345 results found
    1. Biochemistry and Chemical Biology

    A pre-screening strategy to assess resected tumor margins by imaging cytoplasmic viscosity and hypoxia

    Hui Huang et al.
    A fluorescence-based pre-screening strategy allows high-throughput, convenient, and fast gross assessment of resected tumor margins by imaging cytoplasmic viscosity and hypoxia.
    1. Neuroscience

    Cell and circuit origins of fast network oscillations in the mammalian main olfactory bulb

    Shawn D Burton, Nathaniel N Urban
    Fast network oscillations in the mammalian main olfactory bulb emerge from the dense synchronization of gamma-frequency firing among resonant tufted cells.
    1. Cell Biology
    2. Neuroscience

    Pathogenic LRRK2 control of primary cilia and Hedgehog signaling in neurons and astrocytes of mouse brain

    Shahzad S Khan et al.
    Striatal cholinergic interneurons and astrocytes lose cilia and show dysregulation of Hedgehog signaling in mice with a Parkinson's disease-associated, G2019S LRRK2 mutation or upon loss of PPM1H phosphatase specific for LRRK2-phosphorylated Rab GTPases.
    1. Biochemistry and Chemical Biology

    Myopalladin knockout mice develop cardiac dilation and show a maladaptive response to mechanical pressure overload

    Maria Carmela Filomena et al.
    Ablation of the sarcomeric protein myopalladin (MYPN), associated with human cardiomyopathies, results in dilated cardiomyopathy, which is severely aggravated by biomechanical stress, suggesting that skeletal myopathy patients carrying MYPN loss-of-function mutations may develop cardiomyopathy under conditions of cardiac stress.
    1. Medicine
    2. Microbiology and Infectious Disease

    An open label randomized controlled trial of tamoxifen combined with amphotericin B and fluconazole for cryptococcal meningitis

    Nguyen Thi Thuy Ngan et al.
    Despite evidence of significant anti-cryptococcal activity in vitro and animal models, including synergy with other antifungal agents, high-dose tamoxifen has no impact on cerebrospinal fluid sterilization in cryptococcal meningitis.
    1. Neuroscience

    Septal cholinergic input to CA2 hippocampal region controls social novelty discrimination via nicotinic receptor-mediated disinhibition

    Domenico Pimpinella et al.
    Acetylcholine, released from cholinergic fibers originating from the medial septum, shapes social memory, and controls the CA2 hippocampal circuit via nicotinic receptors localized on GABAergic interneurons.
    1. Structural Biology and Molecular Biophysics

    Transcription initiation at a consensus bacterial promoter proceeds via a ‘bind-unwind-load-and-lock’ mechanism

    Abhishek Mazumder et al.
    Single-molecule fluorescence experiments reveal transcription initiation proceeds via a 'bind-unwind-load-and-lock' mechanism where promoter DNA unwinds outside the RNA polymerase (RNAP) cleft, the unwound template-DNA loads into the cleft, and RNAP 'locks' the template-DNA by closing the RNAP clamp module.
    1. Cell Biology
    2. Neuroscience

    HIF1α stabilization in hypoxia is not oxidant-initiated

    Amit Kumar et al.
    The current findings address the redox regulation of hypoxia inducible factor 1α (HIF1α) stability in hypoxia by showing that cytosolic, mitochondrial or lipid ROS are not necessary for HIF1α stabilization in hypoxia.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Retinoic acid signaling is directly activated in cardiomyocytes and protects mouse hearts from apoptosis after myocardial infarction

    Fabio Da Silva et al.
    Lineage tracing and genetic experiments resolve a long-standing controversy by showing that retinoic acid signaling is active in cardiomyocytes, both during development and after myocardial infarction, and protects damaged hearts from apoptosis.

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