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Article: Distinctive neurophysiological properties of embryonic trigeminal and geniculate neurons in culture.

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Grigaliunas A; Bradley RM; MacCallum DK; Mistretta CM
J. Neurophysiol., 2002


Table 1.

Analysis of variance and post hoc Sheffe tests for trigeminal and geniculate ganglion cell properties across days in culture

Ganglion cell property Trigeminal Geniculate
ANOVA Sheffe ANOVA Sheffe
Average soma diameter F = 11.76 P < 0.001 3 from 6, 7, 8, 9, 104 from 8, 9, 105 from 9, 10 F = 8.48 P < 0.001 4 from 6, 7, 8, 9, 105 from 10
Resting membrane potential F = 0.49 P = 0.84 F = 3.1 P = 0.007 No differences
Input resistance F = 3.44P = 0.002 3 from 8, 9 F = 3.84 P= 0.001 4 from 9
Time constant F = 0.47P = 0.86 F = 0.53 P = 0.78
Membrane capacitance F = 13.41P < 0.001 3, 4, 5, 6 from 8, 9, 107 from 9, 10 F = 4.41 P < 0.001 4 from 8
AP amplitude F = 1.68 P = 0.114 F = 1.58 P = 0.157
AP half-duration F = 6.34 P < 0.001 6, 7 from 10 F = 2.79 P = 0.013 6 from 9
AP maximal right slope F = 5.13 P < 0.001 6, 7, 8 from 10 F = 2.51 P = 0.024 6 from 9
AP maximal left slope F = 5.03 P < 0.001 6, 7, 8 from 10 F = 5.47 P < 0.001 6 from 9, 10
AP 10–90% decay time F = 2.29P = 0.029 No differences F = 0.5P = 0.81
Threshold of excitation, mV F = 0.58 P = 0.77 F = 2.77 P = 0.014 No differences
Threshold of excitation, pA F = 2.75 P = 0.009 3 from 8, 10 F = 2.88 P = 0.011 No differences
AHP amplitude F = 1.06 P = 0.39 F = 3.4 P = 0.004 No differences
AHP duration F = 9.66 P < 0.001 3, 4, 5, 6 from 9, 10 F = 0.98 P = 0.44
  • For Scheffe tests, culture days with significant differences in ganglion properties are noted. AP, action potential; AHP, afterhyperpolarization.


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