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The Blood Type Diet Archives Volume 14
Phytoestrogens are only part of the picture.
Posted By: Peter D'Adamo
Date: Monday, 17 July 2000, at 8:43 a.m.
In Response To: Dangers of soy products.... (Pat (A+))
For type A's and AB's the lectin in soy (soy bean agglutinin) probably has more of a protective effect in reproductive cancers than the phytoestrogens. Remember, not all lectins are bad; many just have to be used in the right system. The science media pays virtually no attention to the effects of soy lectin (probably because their is no money in it, unlike soy isoflavone) and won't likely ever because its effects are only directly applicable to a fraction of the population. Thus all actions of soy (good or bad) are always attributed to the phytoestrogens.
We know better. It depends on blood type.
Here is an article showing that soy lectin can be used to purge bone marrow of infected breast cancer cells:
Cancer Res 1988 Aug 15;48(16):4573-7 Related Articles, Books, LinkOut
Removal of breast cancer cells by soybean agglutinin in an experimental model for purging human marrow.
Morecki S, Margel S, Slavin S
Department of Bone Marrow Transplantation, Hadassah University Hospital, Jerusalem, Israel.
Soybean agglutinin (SBA) was used as a differential reagent to achieve selective elimination of human breast cancer cells (T-47D cell line) from human marrow contaminated with tumor cells. Two successive cycles of direct agglutination by soluble SBA resulted in depletion of 3.5 logs of tumor cells as determined by radiolabeling, whereas removal of more than 4 logs of tumor cells was demonstrated by a clonogenic bioassay. A more convenient procedure for tumor purge involved the use of SBA bound to either polyglutaraldehyde magnetic beads or to commercial polystyrene magnetic beads. After one cycle of magnetic separation, 2 to 3.5 logs of tumor cells were removed. A second separation cycle using fresh magnetic beads improved depletion to more than 4 logs. Neither of these purging procedures affected the hematopoietic potential of granuloid-macrophage colony-forming unit cells. We suggest the use of SBA bound to magnetic beads as a convenient tool for effective ex vivo purging of marrow aspirates contaminated with metastatic breast cancer cells in patients with advanced disease. A similar procedure is applicable for all SBA-positive neoplasms.
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Pat (A+) -- Monday, 17 July 2000, at 4:43 a.m.