Lignified natural products as potential medicinal resources. I. Potentiation of hemolytic plaque-forming cell production in mice.

Abstract
We have found that water-soluble extracts of lignified natural products are strong potentiaters of hemolytic plaque-forming cell production in mice. Apparently, the active components involved belong to a lignin family. Consequently, study of medicinal potential, especially immunopotentiating capacity, of lignified materials is important.
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