preliminary experiments showed that separation of peripheral blood cells on a metrizamide gradient yielded too few neutrophils for efficient radiolabelling with indium ( in ) : hence a mixed cell preparation comprising 80 % neutrophils was elicited in the peripheral blood of adult male rats by the administration of endotoxin ( 0.25 mg i.a . ) and cobra venom factor ( 200 microliter i.p . )
C0027950
efficient
C0229664
peripheral blood