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. Author manuscript; available in PMC: 2024 Sep 20.
Published in final edited form as: Neuron. 2023 Jul 12;111(18):2811–2830.e8. doi: 10.1016/j.neuron.2023.06.008

Table 2.

Electrophysiological characterization of cultured neurons innervating the injured knee reveal unique cellular signatures that punctuate the pain progression at Day 3 and Day 10.

Days post-injection
Day 3 Day 10
Contra
(n = 40)
Ipsi
(n = 42)
Contra
(n = 48)
Ipsi
(n = 57)
Resting membrane potential (mV) −45.93 ± 0.88 −43.07 ± 1.18 −48.04 ± 1.18 *** −42.35 ± 1.00 ***
Capacitance (pF) 38.72 ± 3.04 38.65 ± 3.43 40.23 ± 3.48 42.75 ± 3.18
Action potential amplitude (mV) 86.83 ± 2.74 78.73 ± 0.24 85.98 ± 3.03 85.15 ± 2.66
Half peak duration (ms) 2.29 ± 0.16 2.77 ± 0.24 2.19 ± 0.17 2.60 + 0.14
Afterhyperpolarization amplitude (mV) 15.66 ± 0.65 14.69 ± 0.68 14.63 ± 0.78 14.77 ± 0.77
Afterhyperpolarization duration (ms) 9.50 ± 0.66 8.17 ± 0.56 11.71 ± 1.20 12.17 ± 1.14

Intrinsic and active properties of knee innervating dorsal root ganglion neurons from the MIA injected side (Ipsi) and contralateral (Contra) side.

***

p < 0.001, unpaired t-test.