title: Proteolytic enzymes stimulate human spermatozoal motility and in vitro hamster egg penetration.
abstract: Addition of chymotrypsin or trypsin decreased the viscosity of highly viscous semen of subfertile patients. Besides that spermatozoal motility (in 50-80% of the case) and in vitro fertilizing ability was measured with zona-free hamster ova (in 35% of the cases) were increased of both normal and highly viscous semen.
mesh_terms: D000681:Amylases / Q000494:pharmacology; D000818:Animals; D002918:Chymotrypsin / Q000494:pharmacology; D006224:Cricetinae; D005260:Female; D005307:Fertilization in Vitro / Q000187:drug effects*; D006801:Humans; D008297:Male; D010447:Peptide Hydrolases / Q000494:pharmacology*; D013081:Sperm Motility / Q000187:drug effects*; D014357:Trypsin / Q000494:pharmacology; D014783:Viscosity
chemical_list: D000681:Amylases; D010447:Peptide Hydrolases; D002918:Chymotrypsin; D014357:Trypsin