serum levels of mullerian inhibiting substance in boys from birth to 18 years, as determined by enzyme immunoassay

Abstract

An enzyme immunoassay was set up with the aim of determining the serum levels of Mullerian inhibiting substance (MIS) during childhood. A monoclonal antibody against purified bovine MIS was combined with a polyclonal antibody against recombinant human MIS to make a sandwich assay. This assay detected MIS in human serum within the following criteria. Ninety-eight boys, aged between birth and 18 yr, who had been admitted to the Royal Children's Hospital, were included. MIS levels were measured in samples taken for biochemical screening of unrelated disorders. MIS was detected in the serum up to 16 yr of age, but was low beyond 12 yr and undetectable at 18 yr. High MIS levels were found at 4-12..