Cardiology articles from across Nature Portfolio

Adult hearts have inherently limited regenerative capabilities, such that injury results in lasting damage. The situation is different in neonatal mouse hearts, however, where a new study reveals a role for the immunomodulatory PD-1–PD-L1 pathway in regulating regeneration after injury.

This Review outlines the roles of innate and adaptive immune cells in hypertension. The authors discuss the mechanisms and important properties of immune cells that contribute to hypertension pathogenesis, such as memory and plasticity.

According to data from the IMPROVE-HCM trial, ninerafaxstat is well tolerated by patients with symptomatic non-obstructive hypertrophic cardiomyopathy and improves exercise performance among those who are most symptomatically limited.

Data from the DanGer Shock trial demonstrate that implantation of a microaxial flow pump in patients with ST-segment elevation myocardial infarction complicated by cardiogenic shock increases the survival rate compared with standard care alone.

The under-representation of women in cardiovascular clinical trials persists across participant, clinician and research roles. This gap perpetuates health inequity and hampers the generation, translation and implementation of optimal evidence-based care. Urgent action is needed to address barriers, promote diversity, and ensure inclusive trial design and health-care delivery and dissemination, for more equitable cardiovascular health.

Three randomized clinical trials presented at ACC.24 demonstrate that olezarsen and plozasiran, RNA-based therapies that target APOC3, can robustly reduce plasma triglyceride levels in patients with moderate to severe hypertriglyceridaemia.

In the REDUCE-AMI trial, the use of β-blockers in patients with acute myocardial infarction (MI) who have undergone early coronary angiography and have a preserved left ventricular ejection fraction did not reduce the risk of death or new MI compared with no β-blocker use.

In patients with symptomatic aortic stenosis and a small aortic annulus, a self-expanding valve has similar rates of clinical outcomes at 1 year and lower rates of bioprosthetic dysfunction compared with a balloon-expandable valve.