CXCL8 and Right ventricular dilatation: Rodrigues et al. (Rodrigues et al. 2022) studied 50 patients with Chagas myocardiopathy; those with a left ventricular fraction less (LVEF) than 35% had higher IL-8 and IL-12 serum levels, while elevated IL-6 was related to the presence of right ventricular dilation on the echocardiogram.