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Table 2 peak change from baseline in heart rate, wall motion amplitude (WMA), myocardial wall velocity in systole (MWVs) and myocardial wall velocity in diastole (MWVd) in response to norepenephrine: 2-day vs 4-day embryos (Golden strain)

From: Systolic and diastolic ventricular function in zebrafish embryos: Influence of norepenephrine, MS-222 and temperature

 

2-days (n = 5)

4-day (n = 7)

P*

Heart rate (bpm)

+11.6 ± 7.2

+19.9 ± 7.3

0.07

WMA (μm)

+4.0 ± 8.8

+13.6 ± 8.2

0.07

MWVs (μm/s)

+41.7 ± 88.8

+184.9 ± 126.1

0.05

MWVd (μm/s)

+42.6 ± 75.6

+364.7 ± 139.9

<0.001

  1. *comparison between 2 and 4 day embryos