IL6 and abdominal aortic aneurysm: Recently, pro- and anti-inflammatory cytokines, such as interleukin-(IL)-10 [14] and IL-6 [15], have been associated with CVD onset and progression, and current meta-analyses [16,17,18,19] have also confirmed the relationship of some functional polymorphisms in pro-inflammatory cytokine genes with the significant increase in the susceptibility to several CVD, abdominal aortic aneurysms included.