IL6 and chronic obstructive pulmonary disease: In stable COPD patients, higher circulating inflammatory markers (IL-6, C-reactive protein) were associated with higher dietary intake of n-6 PUFAs (for IL-6, OR = 1.96, p = 0.034; for CRP, OR = 1.95, p = 0.039), while lower plasma levels of the cytokine TNF-α were related to n-3 PUFAs intake (OR = 0.46, p = 0.049) [118].