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. 2018 Dec 20;20(1):2. doi: 10.3390/ijms20010002

Figure 4.

Figure 4

Representative M-modes of semi-intact larval Drosophila hearts incubated with distinct peptides (1 × 10−7 M). The movement of the heart walls over time (10 s) is depicted. Application of Corazonin, DH31, Proctolin, or Tachykinins 1, 3, or 5 has a cardioacceleratory effect. Application of Allatostatin A4 results in cardiac arrest. Upper panels represent control hearts (prior to peptide application); lower panels depict the same hearts 1 min after peptide application. Scale bars indicate 1 s.