What is the difference between Dialyzable Leukocyte Extract (DLE) and TF as extracted from colostrum?
(The key relevance is TF specific for selected conditions (HIV, Ca. etc.) Transfer Factor is a product of leukocytes. In the original production of transfer factor the process was a dialysis of fractured leukocytes. Transfer factor and dialyzable leukocyte extract are often used synonymously. In fact the dialyzable leukocyte extract contains the transfer factor along with other materials of similar molecular weight. Regarding the transfer factor isolated from colostrums, these too originate in leukocytes which themselves originate in the blood. Prior to parturition the mammary gland fills with leukocytes. After parturition very few intact leukocytes remain. What has happened is that the leukocytes have been lysed and their contents released into the colostrums. Our filtration of the colostrums removes the larger allergenic proteins and leaves the low molecular weight transfer factors in a manner similar to that originally observed in the dialysis of isolated leukocytes. Transfer factor
