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Isolation of Peritoneum-derived Mast Cells and Their Functional Characterization with Ca2+-imaging and Degranulation Assays
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Isolation of Peritoneum-derived Mast Cells and Their Functional Characterization with Ca2+-imaging and Degranulation Assays

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Effect of dantrolene on histamine release from rat peritoneal mast cells

M Takei1, H Urashima, K Endo

  • 1Department of Pharmacology, Tokushima Bunri University, Japan.

Agents and Actions
|March 1, 1991
PubMed

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Directly Acting Muscle Relaxants: Dantrolene and Botulinum Toxin01:26

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Directly acting muscle relaxants like dantrolene and botulinum toxin (BoNT) have distinct mechanisms and applications. Dantrolene, a hydantoin derivative, acts on the ryanodine receptor (RYR1) in skeletal muscle cells. RYR1 are calcium channels present at the sarcoplasmic reticulum membrane. In response to excitation, they release calcium ions from the sarcoplasmic reticulum to the cytosol. Calcium promotes actin-myosin-mediated contraction of muscles.
The binding of dantrolene to the RYR1...