A preview of the emerging health care companies profiled in the current issue of Start-Up. This month's profile group, New Drugs for Myocardial Infarction, features profiles of ArgiNOx Pharmaceuticals, ParinGenix and VasoGenix Pharmaceuticals. Plus these Start-Ups Across Health Care: AngioScore, Hamilton Pharmaceuticals, Ikaria, Light BioScience and Potentia Pharmaceuticals.

Ischemia-induced damage isn't the only harmful effect of heart attacks, and a number of recently founded companies are investigating new mechanisms to protect the heart.

ArgiNOx is working on the development of drugs to modulate overproduction of nitric oxide, which has been implicated in a range of acute cardiovascular pathologies.