Article: Differential GABAA receptor clustering determines GABA synapse plasticity in rat oxytocin neurons around parturition and the onset of lactation.
Table 1Pipette, membrane and action potential characteristics for neurons in the DMH either retrogradely labeled with DiI injected into the PVN (DiI+) or unlabeled (DiI−)
Parameter
DiI− (n=54)
DiI+ (n=32)
Resting membrane potential (RMP, mV)
−60.1±1.0
−59.6±1.2
Action potential peak (mV)
8.8±1.0
9.6±1.2
After hyperpolarizing after-potential (AHAP, mV)
−5.6±0.8
−3.5±0.7
Amplitude RMP to peak (AmRMP, mV)
68.8±1.6
69.2±1.4
Amplitude threshold to peak (AmTHR, mV)
48.7±1.2
46.9±1.2
Threshold (THR, mV)
−39.9±0.7
−37.3±1.0*
Duration (DUR, ms)
1.2±0.1
1.3±0.1
Pipette resistance (Rp, MΩ)
3.8±0.1
3.9±0.2
Series resistance (Rs, MΩ)
9.3±0.3
9.2±0.3
Membrane time constant (Tau, ms)
24.1±1.2
23.1±1.2
Input resistance (Ri, MΩ)
698±37
655±39
*Significant difference (P<0.05) between labeled and unlabeled neurons compared with ANOVA and Fisher’s PLSD post-hoc analysis.
