Helping Children Grow in Moral Health

The isolation and partial characterisation of a new α‐macroglobulin from human pregnancy serum

“…Serum was prepared from women in or after their 35th week of pregnancy, as previously described [ 1 ], and antiserum to it was raised in rabbits using Freund's complete adjuvent (Difco). Commercial p olyvalent antiserum was supplied by Dakopatts.…”

“…In the course of an investigation into serum protein changes in human pregnancy [ 1 ] it was observed that when immunoelectrophoresis was carried out with anti-pregnancy serum an additional precipitin line, in the fast a2-globulin region, consistently appeared; this was not present when commercial polyvalent antiserum was used.…”