Auditory Brainstem Response (ABR) measurement for Aldh2tm1a(EUCOMM)Wtsi/HmguMouse GP

Results Summary

  • ABR thresholds normal
  • Click-ABR waveforms normal

Methods Summary

  • Auditory Brainstem Responses (ABRs) are recorded via subcutaneous needle electrodes placed at the vertex and behind the left ear, as an average of 256 responses to presentation of freefield stimuli [clicks (10us) or tone pips (5ms tone pips, 1ms rise/fall time)], presented at 42.2/sec.
  • ABR Thresholds are determined and plotted as a function of stimulus. Mean threshold is plotted (+/- population standard deviation). The green shaded area indicates the median threshold (and 2.5% to 97.5% reference range) of a large population of wildtype mice of this genetic background.
  • Click-Evoked ABRs waveforms were analysed. Superimposed waveforms recorded at 20dB and 50dB sensation level were plotted. Amplitudes and Latencies for waves P1, N1, P3 and N3 were recorded and were plotted as a function of dB sensation level. Means are plotted (over a 95% reference range for each parameter).

ABR Thresholds Summary

ABR Thresholds for Aldh2<tm1a(EUCOMM)Wtsi/Hmgu> mutants and controls

ABR Thresholds and Waveforms

Subjects
Mouse Name Mouse Barcode Genotype Gender Age click 6kHz 12kHz 18kHz 24kHz 30kHz
MDEX12.1b M00882326 Aldh2/Aldh2(locked) Male 13.6 30 30 20 25 30 35
MDEX13.1b M00882331 Aldh2/Aldh2(locked) Male 13.9 25 30 20 15 25 30
MDEX13.1c M00882332 Aldh2/Aldh2(locked) Male 13.9 25 40 25 25 30 30
MDEX6.2a M00882277 Aldh2/Aldh2(locked) Male 13.9 20 30 15 15 25 35
MDEX6.2c M00882279 Aldh2/Aldh2(locked) Male 13.9 20 25 15 10 25 45
MDEX6.2d M00882280 Aldh2/Aldh2(locked) Male 13.9 25 35 20 15 20 35
Aldh2/Aldh2 Average 13.85 24.17 31.67 19.17 17.5 25.83 35
Aldh2/Aldh2 Standard Deviation 0.11 3.44 4.71 3.44 5.59 3.44 5
Aldh2/Aldh2 Standard Error 0.05 1.4 1.92 1.4 2.28 1.4 2.04
Controls
Mouse Name Mouse Barcode Genotype Gender Age click 6kHz 12kHz 18kHz 24kHz 30kHz
MAYP50.2e M00886841 +/+(locked) Female 14.2 20 35 20 20 30 30
MAYP50.2f M00886842 +/+(locked) Female 14.2 25 40 20 20 25 35
MCTS40.2b M00878353 +/+(locked) Female 13.5 20 25 10 15 25 40
MAVY42.1b M00880911 +/+(locked) Male 13.6 25 30 15 15 25 40
MAVY43.1a M00880914 +/+(locked) Male 13.5 25 30 15 20 30 50
MCZN58.1b M00884314 +/+(locked) Male 14.1 20 35 15 15 20 25
MCZN62.1a M00884329 +/+(locked) Male 13.9 25 30 20 15 20 25
+/+ Average 13.86 22.86 32.14 16.43 17.14 25 35
+/+ Standard Deviation 0.3 2.47 4.52 3.5 2.47 3.78 8.45
+/+ Standard Error 0.11 .94 1.71 1.32 .94 1.43 3.19
MCTS42.1g M00878363 Cc2d2a:failed(locked) Female 13.8 25 35 15 20 25 40
Cc2d2a:failed Average 13.8 25 35 15 20 25 40
Cc2d2a:failed Standard Deviation 0.0 0 0 0 0 0 0
Cc2d2a:failed Standard Error 0.0 0 0 0 0 0 0

Input Output Functions