Vasorelaxation, induced by Dictyota pulchella (Dictyotaceae), a brown alga, is mediated via inhibition of calcium influx in rats.
Queiroz TM, Machado NT, Furtado FF, Oliveira-Filho AA, Alustau MC, Figueiredo CS, Miranda GE, Barbosa-Filho JM, Braga VA, Medeiros IA. Mar Drugs. 2011; 9(10):2075-88. Epub 2011 Oct 24.