GROWTH INHIBITION IN BONE AND BONE MARROW FOLLOWING TREATMENT WITH ADRENOCORTICOTROPIN (ACTH)

Abstract
The following changes were observed in the tibias of adult male rats treated with ACTH in doses of 1 and 3 mg. daily for 21 days: (1) retardation of chondrogenesis and osteogenesis and (2) atrophy of the red marrow with apparent replacement of it with fat. Variation of the diet, which was controlled by tube-feeding, did not modify these results significantly. Less notice-able changes were observed in the vertebrae.