TPO and Hashimoto thyroiditis: A similar study measuring serum resolvin D1 (RvD1) levels in the serum of patients with Hashimoto’s thyroiditis (HT) and healthy individuals in the control group, along with an analysis of the correlation between RvD1 and thyroid autoantibodies and inflammatory factors, demonstrated a negative correlation between serum RvD1 levels and anti-TPO levels in paired samples.