| Type | MGI:General | Description | in females capable of lactation, mammary glands are lighter and contain less total secretory alveolar tissue after 10 days of lactation, however after 10 days of lactation and 5 days of involution, glands do not show the same degree in gland size reduction as wild-type and are thus heavier mammary glands from 7 of 9 dams that were unable to nurse pups (do not lactate) contain almost no secretory alveolar epithelium, instead they have regions of prominent fibrosis, scattered areas of atypical adipose tissue, and sometimes abundant inflammatory cells exhibit an accumulation of activated macrophages in the stroma of lactating mammary glands |
