1983
Calcium entry causes a prolonged refractory period in peptidergic neurons of Aplysia
Kaczmarek L, Kauer J. Calcium entry causes a prolonged refractory period in peptidergic neurons of Aplysia. Journal Of Neuroscience 1983, 3: 2230-2239. PMID: 6631477, PMCID: PMC6564640, DOI: 10.1523/jneurosci.03-11-02230.1983.Peer-Reviewed Original ResearchConceptsOnset of afterdischargeProlonged refractory periodBag cell clustersBag cell neuronsCumulative depolarizationRefractory periodNatural refractorinessCell neuronsCalcium entryAction potentialsConcentration of ionophoreExtracellular tetraethylammonium ionsRepetitive intracellular stimulationPeptidergic bag cell neuronsPleuroabdominal connectivesCell clustersCalcium-deficient mediumAdenylate cyclase activatorCalcium-containing mediumMean durationPeptidergic neuronsAbdominal ganglionAfterdischargesBrief trainsIntracellular stimulation
1980
Purification and primary structure of two neuroactive peptides that cause bag cell afterdischarge and egg-laying in Aplysia
Heller E, Kaczmarek L, Hunkapiller M, Hood L, Strumwasser F. Purification and primary structure of two neuroactive peptides that cause bag cell afterdischarge and egg-laying in Aplysia. Proceedings Of The National Academy Of Sciences Of The United States Of America 1980, 77: 2328-2332. PMID: 6929554, PMCID: PMC348708, DOI: 10.1073/pnas.77.4.2328.Peer-Reviewed Original ResearchConceptsBag cell neuronsEgg-laying hormoneCell neuronsNeuroactive peptidesBag cell afterdischargePeptide BPleuroabdominal connectivesAbdominal ganglionRecipient animalsNeuronal receptorsHead gangliaVitro recordingsReproductive tractBag cellsGangliaAtrial glandNeuronsAtrial gland peptidesHormoneGlandGland peptideAgarose gel filtrationPeptide AAplysiaPro-Phe