[Relation between morphometric indicators in axons of myelinated peripheral nerve fibers and the age of experimental...

The authors observed the dependence of morphometric indicators of myelinated nerve fibers on the age of experimental animals. They performed a morphometric analysis of myelinated nerve fibers, namely nervous peroneus communis in male adult white rats of 17, 21, 25 and 31 weeks of age. They discovered that the values of individual morphometric indicators of axons of myelinated nerve fibers (axon perimeter, axon circular diameter, axon area, circular axon area) and their distribution vary in dependence on age of experimental animals. The authors emphasize that observation of experimental alterations of morphometric indicators of myelinated nerve fiber axons requires a comparison of findings in groups of animals with those in control groups of animals of the same age. (Tab. 2, Fig. 4, Ref. 28.)