A simple apparatus for studying sperm attraction: Chemotaxis induced by relaxin and progesterone

The aim of this study was to develop a simple, inexpensive but reliable method of assessing sperm attraction and to determine the chemotactic effects of relaxin and progesterone within the system. Percoll-processed human sperm were allowed to migrate out of a chamber inserted into a microcentrifuge tube containing either relaxin or progesterone. After appropriate incubation, sperm concentrations were determined within the microcentrifuge tube …