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. Author manuscript; available in PMC: 2011 Feb 28.
Published in final edited form as: Muscle Nerve. 2010 Mar;41(3):335–341. doi: 10.1002/mus.21485

Table 1.

Complete results of histomorphometry and GAP43 expression.

Saline IGF-1
Axons per nerve
    Young 6230 ± 746 11,359 ± 1392
    Aged 2402 ± 1226 10,101 ± 3096
Average axon diameter (µm)
    Young 2.82 ± 0.16 3.53 ± 0.21
    Aged 2.71 ± 0.18 3.59 ± 0.19
Axon density (axons per mm2)
    Young 10,318 ± 2056 16,635 ± 1392
    Aged 4506 ± 2298 17,767 ± 3865
Myelin thickness (µm)
    Young 0.35 ± 0.01 0.65 ± 0.09
    Aged 0.37 ± 0.02 0.62 ± 0.07
Average g-ratio
    Young 0.80 ± 0.004 0.71 ± 0.006
    Aged 0.79 ± 0.006 0.69 ± 0.01
GAP43 mRNA expression (RE)
    Young 0.80 ± 0.004 0.71 ± 0.006
    Aged 0.79 ± 0.006 0.69 ± 0.01

Data expressed as mean ± SEM.