mtp-pe caused a drastic effect on white blood cells : ( 1 ) neutropenia and lymphocytopenia occurring within 5 h was followed by leukocytosis of neutrophils and their juvenile forms by 24 h and thereafter , ( 2 ) within 24 h the number of prelabelled , i.e . recently regenerated , mononuclear cells in the bone marrow and the vascular system of various tissues increased approximately threefold , and ( 3 ) within 48 h the concentration of proliferating monocytic cells ( 1-h pulse labelling ) rose to maximum levels of up to 20-fold in the lumina of blood vessels , particularly in capillaries of many organs .
C0489903
vascular system
C0006901
capillaries