Morphometric peculiarities of the brain in two-month-old rats as a function of body weight at the age of one month

The brain from 2-month-old rats up to the age of 1 month was studied in litters of different size: 9-13 (control) and 4-6 (reduced) animals. In animals from reduced litters the absolute weight of the brain surpassed that of controls. The maximum brain weight is characteristic of animals from reduced litters with maximum body weight at the age of one month, while the minimal brain mass is found in controls with the minimal body weight. There are no differences in the cortical thickness and neuron density in layers II and V between these two groups.[PUBLICATION ABSTRACT]