ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2025
Endogenous muscarinic acetylcholine receptor signaling blunts α
Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
Muscarinic acetylcholine receptors (mAChRs) are expressed ubiquitously in the human skeletal muscle vasculature. Prior studies have been unable to identify a contribution of mAChR signaling to exercise-mediated vasodilation; however, no studies have determined whether endogenous mAChR signaling regulates the ability of contracting skeletal muscle to attenuate sympathetic vasoconstriction, a phenomenon called "functional sympatholysis." We tested the hypothesis that endogenous mAChR signaling contributes to functional sympatholysis in humans. In healthy volunteers (8 F, 8 M; 26 ± 5 yr), changes in forearm vascular conductance (ΔFVC) were calculated in response to intra-arterial infusions of phenylephrine (PE; α
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