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Relationship between serum PCSK9 and LDL cholesterol levels in the P. gingivalis-infected (open triangle) and sham-infected (open circle) mice (N = 5 in each group). Spearman’s rank correlation coefficient analysis showed that there was a significant correlation between LDL cholesterol levels and serum PCSK9 levels. Spearman r = 0.8545, P < 0.01.
