WORCESTER, Mass., June 9, 2008 (PRIME NEWSWIRE) -- Generex Biotechnology Corporation (Nasdaq:GNBT) (www.generex.com), the leader in drug delivery for metabolic diseases through the inner lining of the mouth, made two podium presentations of data from Company-sponsored studies at the 68th Annual Scientific Sessions of the American Diabetes Association (ADA, www.diabetes.org) in San Francisco on June 7, 2008.