Mišići srčanih komora obolelog srca imaju povećanu osetljivost na serotonin.[4] Do toga dolazi zbog povišenog izražavanja 5-HT4 receptora u njima. Na osnovu tog nalaza, i po analogiji na efikasnot primene beta blokatora u lečenju zatajenja srca, formirana je hipoteza da 5-HT4 antagonisti mogu da budu korisni u tretirnaju otkazivanja srca. Ova hipoteza potvrđena na životinjskim modelima.[5]
↑Evan E. Bolton, Yanli Wang, Paul A. Thiessen, Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry4: 217-241. DOI:10.1016/S1574-1400(08)00012-1.
↑Gaulton A, Bellis LJ, Bento AP, Chambers J, Davies M, Hersey A, Light Y, McGlinchey S, Michalovich D, Al-Lazikani B, Overington JP. (2012). „ChEMBL: a large-scale bioactivity database for drug discovery”. Nucleic Acids Res40 (Database issue): D1100-7. DOI:10.1093/nar/gkr777. PMID21948594.edit
↑Bratteli T. et al., Functional serotonin 5-HT4 receptors in porcine and human ventricular myocardium with increased 5-HT4 mRNA in heart failure. Naunyn-Schmiedeberg's Arch. Pharmacol., 370:157-166, 2004
↑Birkeland JA. et al., Effects of treatment with a 5-HT4 receptor antagonist in heart failure. Br J Pharmacol. 2007 Jan;150(2):143-52. Epub 2006 Dec 11.