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We characterized the serotonin (5-hydroxytryptamine; 5-HT) receptor mediating cilia-driven rotational movement in embryos of the freshwater gastropod Physa elliptica. In addition, putative serotonin reuptake inhibitors (SSRIs), previously shown to induce other 5-HT-mediated processes in molluscs, were tested for their ability to induce rotation. As in(More)
Parturition in fingernail clams (Sphaerium spp.) can be induced by external application of serotonin and serotonergic ligands. Selective serotonin re-uptake inhibitors (SSRIs) increase neurotransmission at serotonergic synapses by blocking re-uptake transporters. We tested the efficacy of SSRIs (fluvoxamine, fluoxetine, paroxetine) at inducing parturition(More)
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