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What does B-EF stand for?

B-EF stands for Bone marrow-enhancing factor


This definition appears rarely

Samples in periodicals archive:

Bone marrow-enhancing factor (B-EF) is the spontaneous product of whole bone marrow cells cultured in serum-free medium for a short term (24–48 hr). The factor is prepared by ultrafiltration of BMC supernates to yield a preparation with a MW of greater than 10,000. Production of the factor is not dependent upon antigenic or mitogenic stimulation of BMC, but is inhibited by treatment of BMC with cycloheximide.