Auditory Brainstem Response (ABR) measurement for Mtfmttm1a(KOMP)WtsiMouse 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 Mtfmt<tm1a(KOMP)Wtsi> mutants and controls

ABR Thresholds and Waveforms

Subjects
Mouse Name Mouse Barcode Genotype Gender Age click 6kHz 12kHz 18kHz 24kHz 30kHz
MBFN37.1f M00310522 Mtfmt/+(locked) Female 13.8 25 35 15 20 25 25
MBFN37.1g M00310523 Mtfmt/+(locked) Female 13.8 25 40 15 15 25 25
MBFN37.1h M00310524 Mtfmt/+(locked) Female 13.8 30 50 25 25 30 40
MBFN55.2c M00427015 Mtfmt/+(locked) Female 14.2 20 25 20 15 20 30
MBFN55.2d M00427016 Mtfmt/+(locked) Female 14.2 20 25 10 15 25 25
Mtfmt/+ Average 13.96 24 35 17 18 25 29
Mtfmt/+ Standard Deviation 0.2 3.74 9.49 5.1 4 3.16 5.83
Mtfmt/+ Standard Error 0.09 1.67 4.24 2.28 1.79 1.41 2.61
MBFN40.2f M00328615 Mtfmt:failed(locked) Female 14.2 20 30 15 15 25 30
Mtfmt:failed Average 14.2 20 30 15 15 25 30
Mtfmt:failed Standard Deviation 0.0 0 0 0 0 0 0
Mtfmt:failed Standard Error 0.0 0 0 0 0 0 0
Controls
Mouse Name Mouse Barcode Genotype Gender Age click 6kHz 12kHz 18kHz 24kHz 30kHz
MALR17.1a M00309359 +/+(locked) Female 13.9 25 30 15 20 20 35
MALR17.1b M00309360 +/+(locked) Female 13.9 25 50 25 25 45 45
MBKW35.7c M00326323 +/+(locked) Female 14.4 25 45 15 15 25 40
MBKW35.7d M00326324 +/+(locked) Female 14.4 25 45 20 25 25 30
MBSD62.1d M00422346 +/+(locked) Female 14.2 25 30 20 25 35 45
MBSD67.1b M00430186 +/+(locked) Female 14.4 25 25 20 25 30 40
MABK56.1a M00424889 +/+(locked) Male 14.1 30 35 10 15 25 35
MABK61.1b M00425142 +/+(locked) Male 14.1 25 30 15 20 30 35
MAMK16.1a M00308757 +/+(locked) Male 14.1 25 35 20 25 25 35
MAMK16.1b M00308758 +/+(locked) Male 14.1 20 35 20 25 30 45
MBMM24.2d M00319033 +/+(locked) Male 14.3 25 50 20 30 35 35
MBMM26.2a M00319425 +/+(locked) Male 13.9 30 40 15 20 25 35
+/+ Average 14.15 25.42 37.5 17.92 22.5 29.17 37.92
+/+ Standard Deviation 0.18 2.47 8.04 3.8 4.33 6.4 4.77
+/+ Standard Error 0.05 .71 2.32 1.1 1.25 1.85 1.38