QUANTITATIVE BEHAVIOR OF CUTANEOUS HISTAMINE AND MAST CELLS IN HAIR CYCLES OF RATS

[摘要] During some consecutive hair cycles in the rat, both skin mast cell population and total nitrogen, and histamine''s cutaneous contents revealed statistically significant fluctuations. Within the cycles, the cell''s and the amine''soscillations were parallel and mostly connected with the different phases of hair growth while the nitrogen''s quantita tive changes were not With aging, however, both mast cells and hista-mine curves manifested a progressive tendency to level out and disappear.