Evidence of Nicotine-Induced, Curare-Insensitive, Behavior in Planarians
Overview
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Planarians are rapidly developing into very useful research subjects in pharmacology and neuroscience research. Here we report that curare, a cholinergic nicotinic receptor antagonist, alleviates the nicotine-induced planarian seizure-like movements (pSLM) by up to 50 % at equimolar concentrations of nicotine and curare (1 mM), while curare alone does not induce significant pSLMs. The simplest interpretation of our data is that there are nicotine induced behaviors insensitive to curare in our experimental organism. To the best of our knowledge, this is the first report on curare-insensitive, nicotine-induced effects in any organism.
Kakuturu J, OBrien M, Pagan O Biomolecules. 2024; 14(9).
PMID: 39334934 PMC: 11430750. DOI: 10.3390/biom14091168.
Bjedov D, Barbosa R, Palma de Oliveira D, Dorta D, Sarmento M, Sarmento R Biology (Basel). 2024; 13(5).
PMID: 38785819 PMC: 11117760. DOI: 10.3390/biology13050337.
Ireland D, Zhang S, Bochenek V, Hsieh J, Rabeler C, Meyer Z Front Toxicol. 2022; 4:948455.
PMID: 36267428 PMC: 9578561. DOI: 10.3389/ftox.2022.948455.
Planarian nociception: Lessons from a scrunching flatworm.
Reho G, Lelievre V, Cadiou H Front Mol Neurosci. 2022; 15:935918.
PMID: 35959107 PMC: 9362985. DOI: 10.3389/fnmol.2022.935918.
Cotinine antagonizes the behavioral effects of nicotine exposure in the planarian Girardia tigrina.
Bach D, Tenaglia M, Baker D, Deats S, Montgomery E, Pagan O Neurosci Lett. 2016; 632:204-8.
PMID: 27616704 PMC: 5042871. DOI: 10.1016/j.neulet.2016.09.005.