MIAMI--(BUSINESS WIRE)--OPKO Health, Inc. (NYSE Alternext US:OPK) today announced that it will present initial data on the characterization of its next generation anti-VEGF siRNA molecules. These new proprietary siRNA’s are designed to inhibit the angiogenic Vascular Endothelial Growth Factor A165 (VEGFA165 isoform) but spare the anti-angiogenic VEGFA165b isoform.