part of part of has part has part characteristic of inheres in has modifier folic acid Abnormality of folate metabolism Abnormal blood folate concentration Abnormality of folate in blood Any deviation from the normal concentration of folate in the blood circulation. Abnormal serum folate UMLS:C4021037 Folate is an essential water-soluble vitamin (vitamin B9) that is found in green leafy vegetables, cereals, legumes, and fruit. As a major methyl group donor, it plays an important role in one-carbon metabolism and is involved in DNA, RNA, and protein synthesis, in addition to its significant role in energy production and normal cell division. Low blood folate concentration is associated with an increased risk for neural tube defects during pregnancy. amount abnormal blood