Abstract
Asthma, accompanied by lung inflammation, bronchoconstriction and airway hyper-responsiveness, is a significant public health burden. Here we report that Mas-related G protein-coupled receptors (Mrgprs) are expressed in a subset of vagal sensory neurons innervating the airway and mediates cholinergic bronchoconstriction and airway hyper-responsiveness. These findings provide insights into the neural mechanisms underlying the pathogenesis of asthma.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Anaphylaxis / physiopathology
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Animals
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Asthma / genetics*
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Asthma / physiopathology*
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Bronchoconstriction*
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Calcium Signaling
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Guinea Pigs
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Humans
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Mice
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Mice, Inbred C57BL
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Mice, Knockout
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Parasympathetic Nervous System / physiopathology
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Plethysmography
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Receptors, G-Protein-Coupled / genetics*
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Respiratory Hypersensitivity / genetics*
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Respiratory Hypersensitivity / physiopathology*
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Respiratory Mechanics
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Sensory Receptor Cells*
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Vagus Nerve / physiopathology*
Substances
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Receptors, G-Protein-Coupled