Dr. Lamm, I wonder whether in your study with hormones, you have looked at the transfer of circulating IgA into the breast and into the milk. One of the things that has impressed me is the paucity of IgA producing cells in certain organs which are apparently supplying IgA to the secretion. Gall bladder, mammary and parotid glands would be good examples; if you look in the vagina or the cervix where there is supposed to be local secretions, it is very difficult to find IgA cells. I wonder whether you have looked at this problem. In addition to the seeding phenomenon, does one have a selective transport phenomenon from serum to secretion?
KeywordsMammary Gland Parotid Gland Mesenteric Lymph Node Brucella Abortus Teat Canal
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