Research Article

n5-STZ Diabetic Model Develops Alterations in Sciatic Nerve and Dorsal Root Ganglia Neurons of Wistar Rats

Table 1

Passive and active electrical properties of intact dorsal root ganglia neurons from control, near-normoglycemic, and hyperglycemic, groups. Data are illustrated as mean ± S.E.M ( ), where the value in parenthesis indicates the number of neurons.

ParameterControlNear-normoglycemicHyperglycemic

Resting potential (mV)−58.3 ± 1.7 (11)−60.2 ± 1.0 (16)−54.0 ± 1.4a (11)
Input resistance (MΩ)14.9 ± 2.2 (10)13.8 ± 2.1 (16)12.3 ± 1.5 (10)
Limiar current (pA)1909.1 ± 315.2 (11)1668.8 ± 147.1 (16)1618.2 ± 202.2 (11)
AP amplitude (mV)72.7 ± 3.6 (11)73.5 ± 3.2 (16)66.1 ± 3.9 (11)
AP duration (ms)0.9 ± 0.1 (11)0.9 ± 0.1 (16)2.0 ± 0.3a (11)
Maximum ascendant inclination (V/s)195.5 ± 28.9 (11)191.2 ± 19.1 (16)110.9 ± 15.3a (11)
Maximum descendant inclination (V/s)124.5 ± 15.0 (11)115.6 ± 10.8 (16)75.5 ± 9.2a (11)

AP: action potential; aindicates statistical difference compared to control group ( , ANOVA followed by Student-Newman-Keuls comparisons test for resting potential and maximum ascendant inclination and , ANOVA on ranks followed by Dunn’s comparisons test for AP duration and maximum descendant inclination).