Ability of implants of polymer-entrapped antiprogesterone antiserum to absorb and deplete progesterone from serum of the pregnant rat.


A highly specific antiprogesterone antiserum (APA) produced by immunization of sheep with an 11 alpha-hydroxyprogesterone hemisuccinate-thyroglobulin conjugate was purified, and the IgG fraction was entrapped within a polysiloxane matrix. The matrix immobilized APA but allowed penetration and binding of progesterone (P) to the APA. In this entrapped form… (More)


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