红花黄是从植物红花（Carthamustinctorius）的花中提取的，作为中药，广泛用于治疗心脑血管疾病。

玉米赤霉烯酮是一种霉菌毒素，主要由食品和饲料中的镰刀菌属真菌产生。对猪、牛、羊具有雌激素活性，急性毒性低。导致幼年后备母猪乳房发育早熟并产生其他雌激素效应。

Crustacean cardioactive peptide (CCAP) is a highly conserved, amidated cyclic nonapeptide with the primary structure PFCNAFTGC-NH2 (ProPheCysAsnAlaPheTyrGlyCys-NH2) and a disulfide bridge between Cys3 and Cys9. It is found in crustaceans and insects where it behaves as a cardioaccelerator, neuropeptide transmitter for other areas of the nervous system and a hormone.