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Echinobase
ECB-ART-36648
Gen Pharmacol 1997 Jul 01;291:49-53. doi: 10.1016/s0306-3623(96)00524-1.
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Nicotinic antagonists (piperidines and quinuclidines) reduce the susceptibility of early sea urchin embryos to agents evoking calcium shock.

Buznikov GA , Koikov LN , Shmukler YuB , Whitaker MJ .


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1. Some nicotinic antagonists (piperidine and quinuclidine derivatives and bis-quaternary compounds) protect early embryos of the sea urchin Lytechinus pictus against a calcium shock evoked by ionomycin or a mixture of phorbol myristate acetate and nicotine. 2. Maximal protective potency was found for drugs that did not penetrate the plasma membrane. 3. Early sea urchin embryos have nicotinic acetylcholine receptors (nAChR) or nAChR-like structures localized on the cell surface that, apparently, take part in the control of Ca2+ influx.

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Genes referenced: LOC100887844 LOC115919910 LOC576539