An arabinogalactan of mean M-r 2.2 x 10(6) has been isolated from the dried
stems of Tinospora cordifolia and examined by methylation analysis, partia
l hydrolysis and carboxyl reduction. Purified polysaccharide showed polyclo
nal mitogenic activity against B-cells, their proliferation did not require
macrophages. (C) 1999 Elsevier Science Ltd. All rights reserved.