The Parameters of Transcutaneous Electrical Nerve Stimulation Are Critical to Its Regenerative Effects When Applied Just after a Sciatic Crush Lesion in Mice

Figure 3

Morphometric data from myelinated fibers grouped into three diameter ranges (0–2, 2–6, and 6–12 μm). Samples were analyzed in myelinated fiber density (1), diameter (2), and axon diameter (3). Nontreated and High-TENS nerves presented fewer fibers than control or Low-TENS in the range of 6–12 μm (1(c)). High-TENS nerves also presented lower diameter fibers (2(a)) and less myelin area (4(a)) than the other groups in the range of 0–2 μm. Data are presented as median and 25–75 quartiles. ^∗𝑃<0.05, ^∗∗𝑃<0.01.

(a)

(b)

(c)