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Correlation between DNA methylation (expressed in log-scale) and levels of different coenzymatic forms of RBC folate in MTHFR T/T subjects. An inverse relationship was detected between DNA methylation and formylated tetrahydrofolate polyglutamates (formyl-THF; Left). A positive correlation was detected between DNA methylation and methyltetrahydrofolate polyglutamates (methyl-THF; Right).
