北京蜂王精(老年型)对2月龄小鼠脾脏抗羊红细胞空斑形成细胞(PFC)数无明显影响,但可使注射环磷酰胺和应激所致免疫功能抑制的2月龄小鼠和15月龄老年小鼠明显减少的脾脏PFC数恢复正常或接近正常。它还显著增强ConA诱导的小鼠淋巴细胞增殖反应,并使15月龄小鼠显著降低的淋巴细胞增殖反应恢复至相当于2月龄小鼠的正常水平。 Beijing bee WANG Jing (elderly type) had no significant effect on the number of spleen anti-sheep erythrocyte plaque-forming cells (PFC) in 2 month old mice, but it could induce 2 months old mice with cyclophosphamide and stress-induced immune suppression Significantly reduced spleen PFC counts in 15 and 15 month old mice returned to normal or near normal. It also significantly enhanced ConA-induced mouse lymphocyte proliferation responses and restored significantly reduced lymphocyte proliferative responses in 15 month old mice to normal levels equivalent to 2 month old mice.