Transfer of Specific Blood Serum Proteins to Lacteal Secretions near Parturition

Open Access
Publisher Website
Google Scholar
Abstract
Near parturition, the relative concentration of the specific proteins synthesized in the mammary gland decreased with a corresponding increase of protein components entering from the blood. Small amounts of all of the major blood protein components were detected in the secretions; however, as parturition approached the levels of 2 immune globulin components with the same properties as the blood, [beta]2- and [gamma] 1-globulins increased to tremendous levels. Calculations of the amount of [beta]2 and [gamma] 1-globulins leaving the blood indicated that they quantitatively accounted for the immune globulin components appearing in the lacteal secretions.