[Proteins in uterine secretions of fertile and sterile patients using SDS polyacrylamide gel electrophoresis (SDS-PAGE)].

Aim of the presented study was to find out whether there are any differences in the protein patterns of uterine secretions of fertile and sterile women. Analysis was made by polyacrylamide gel electrophoresis (SDS-PAGE). Uterine secretions and sera of 11 sterile and 8 fertile patients were investigated. Utilizing the reducing SDS-electrophoresis, the comparison of all uterine secretions revealed an additional protein band of molecular weight of 33,000 Dalton in the uterine secretions of the fertile women. Secretions of the sterile women showed a protein band which was of significantly lower weight. The significance of this additional protein band as a possible factor of fertility is discussed.