Background: The purpose of this study was to examine the impact of Insulin (INS) on human sperm function, in light of a recent proteomic analysis indicating that these cells express the INS receptor (INSR). Materials and Methods: We used Western blot and Immunocytochemical analyses. Results: Immunocytochemical analyses confirmed the presence of INSR in human spermatozoa and localized this recep...

Antral biopsy culture supernatants from 14 subjects with chronic gastritis, known to have IgA antibodies to the 120 kilodalton protein, showed positive recognition of this antigen in western blots against a cytotoxin positive strain of Helicobacter pylori but gave negative reactions with two cytotoxin negative strains. Control immunoblots with culture supernatants from 13 non-responders to the ...