Haemophilia A is caused by variants in the gene that encodes coagulation factor VIII (FVIII). Sequencing of this gene in the 1980s was the initial step in developing replacement therapy with recombinant FVIII, and thereby removing the risk of blood-borne infections from plasma-derived FVIII.

Corey McAleese describes the study that identified the presence of metabolic heterogeneity in endothelial cells from different tissues and discusses its relevance to our current understanding of endothelial metabolism.

Milda Folkmanaite and Manuela Zaccolo highlight a study that demonstrates a role for phase-separated condensates of protein kinase A in buffering molecules of cAMP, to illustrate how phase separation of proteins in cardiac cells might contribute to the regulation of cardiac function.

Poscablo and colleagues identify a distinct haematopoietic platelet differentiation pathway that is enriched in ageing mice, which results in platelets that are hyper-reactive compared with canonical platelet populations.

In patients with type 2 diabetes mellitus and obesity, bariatric metabolic surgery is associated with a lower risk of the incidence of first-ever congestive heart failure than treatment with glucagon-like peptide 1 receptor agonists, according to a new study.

Data from the SEQUOIA-HCM trial show that aficamten, a cardiac myosin inhibitor, increases exercise capacity and improves quality of life in patients with symptomatic obstructive hypertrophic cardiomyopathy.