Influence of dilution on the chemotactic properties of cotyledon suspensions

In this study the influence of dilution of cotyledon suspensions on the chemotactic stimulus was investigated. When the concentration of the chemotactic stimulus is reduced, the activity of the leucocytes is reduced as well. Dilutions of retained placenta cotyledon suspensions showed an increase in leucocyte activity. This may indicate the existence of a leucocyte inhibition factor in the retained placenta cotyledon.