Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2023 Jul 17;16(7):dmm049962. doi: 10.1242/dmm.049962

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2023. Published by The Company of Biologists Ltd

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.

PMC Copyright notice

Fig. 2. — Fly heart platform. (A) Schematic of the fly thorax and abdomen (left; heart tube is shown in red) and image of semi-intact preparation (middle) with a single cardiac chamber (red box), shown at higher magnification on the right. KD, knockdown; RNAi, RNA interference. (B,C) Simultaneous optical and electrophysiological recordings from beating hearts. M-modes from optical recordings are shown at the top with the corresponding AP traces below. APDs and systolic intervals (SIs) are shown in seconds. The lower window in B shows the voltage trace generated by the image capture software that was used to synchronize the optical and electrical recordings. (D) SIs are paired with their corresponding APs. (E) The Pearson correlation coefficient for the combined data in D showed a significant correlation between SIs and APDs (r=0.96, P<0.0001).