TNF and myocardial infarction: The gene TNF (tumour necrosis factor) is expressed in the myocardium in response to mechanical overload or ischaemic injury (Kurrelmeyer et al., 2000), while inhibition therapy of TNF may reduce the risk of myocardial infarction in patients with rheumatoid arthritis, a typically high risk group (Low et al., 2017).