POINT ROBERTS, Wash., May 20,2011 - www.InvestorIdeas.com, a leader in investor research including biotech and stem cell stocks, issues a Q&A with Dr. James Musick, Chief Executive Officer of stem cell company, Vitro Diagnostics, Inc. dba Vitro Biopharma (OTCQB: VODG).

Optimer Pharmaceuticals, Inc. (NASDAQ:OPTR) announced the presentation of information from insurance claims and survey databases highlighting the unmet need for targeted therapies to treat subpopulations at high risk of recurrence of Clostridium difficile infection (CDI). The research also presented the substantial mortality and frequent complications associated with CDI. Investigator Erik R.

Power3 Medical Products Inc (OTC.BB:PWRM) signed a definitive agreement to acquire all of the stock of Rozetta-Cell Life Sciences, Inc. Power3 plans to effectuate the acquisition of Rozetta-Cell by merging Rozetta-Cell with and into Power3, with Power3 remaining as the surviving company in the merger. The acquisition of Rozetta-Cell is expected to be completed in November 2010.

Proteonomix, Inc. (OTC.BB:PROT) reported that Proteonomix has filed a utility patent application for the Preparation and Use of Stromal Cells for Treatment of Cardiac Diseases.

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RadioShack Corp. (NYSE: RSH) celebrated its 75th anniversary of listing on the New York Stock Exchange.

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