This research backs up other studies that identify problems for women cyclists at the University of Vermont (http://gorp.away.com/gorp/gear/features/bikesad2.htm) and Boston University (http://www.bycycleinc.com/pages/article_MTJ.html
). Both showed effects from saddle pressure including urinary tract infections, boils, swellings, bruising and blisters.
ECD (www.ecdsports.com) has information on cycling health issues and a solution with its ECD Seat. Noseless saddles may not be the answer for competitive cyclists but for commuters and recreational riders, they would resolve the butt pressure problem.