Additionally, a cross-sectional study performed by Carlos Y Castrejón-Morales (57) detected the intake and serum levels of omega-3 PUFAs among Mexican patients with primary Sjögren’s syndrome, and the results showed that omega-3 PUFAs may be a risk factor for Sjögren’s syndrome, which further results in chronic inflammation, including elevated CCL2 levels, in the saliva of Sjögren’s syndrome patients. This evidence concerns the gene CCL2 and Sjogren syndrome.