Studies on immunoregulation of polysaccharides-la from Radix Cynanchi Bungei / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the effects of PRCB1a (one component of polysaccharides from Radix Cynanchi Bungei) on transformation of T lymphocytes of rabbit in vitro and immune function in mice.</p><p><b>METHOD</b>Three doses of PRCB1a (2,4,6 g x L(-1)) were respectively put in bottle with PHA and blood of rabbit. The effect of PRCB1a on immunity in vitro was studied by observing transformation of T lymphocytes; The dosage of PRCB1a (50,100,150 mg x kg(-1) x d(-1)) was given orally for seven days. The effects on immune function were investigated in mice.</p><p><b>RESULT</b>Three doses of PRCB1a could significantly promote (P < 0.01) the ability of T lymphocytes proliferation; PRCB1a could improve the mouse thymus and spleen index, the celiac macrophage ability of engulfing CRBC, the delayed type hypersensitivity ability and the macrophage engulfing carbon granula ability.</p><p><b>CONCLUSION</b>The results indicate PRCB1a can enhance nonspectific and specific cellular immune function.</p>