SOUTH EASTON, Mass., May 5, 2009 (GLOBE NEWSWIRE) -- Pressure BioSciences, Inc. (Nasdaq:PBIO) ("PBI" or the "Company") today announced that total revenue for the first quarter of 2009 was $306,762 compared to $132,376 for the comparable period in 2008, a 132% increase. Revenue from the sale of PCT products and services was $222,142 for the three months ended March 31, 2009 compared to $81,473 for the same period in 2008, a 173% increase. During the first quarter of 2009, the Company completed the installation of ten Barocycler instruments, as compared to seven during the same period of 2008. Seven of the ten were domestic installations and three were international sales, compared to five domestic installations and two international sales for the same quarter in 2008.