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Circadian periodicity of bone marrow mitotic activity and reticulocyte counts in rats and mice
Science (New York, N.Y.)
|October 10, 1969
Abstract:
Mitotic proliferation in the bone marrow of female rats and mice kept under standardized coniditions with light from 6:00 a.m. to 6:00 p.m. exhibited a significant circadian periodicity with the greatest activity occurring from 6:00 a.m. to 12:00 noon. The reticulocyte levels in peripheral blood were highest at 8:00 a.m.