Abstract: A method for ex vivo treating blood or plasma is provided. The method includes (a) ex vivo contacting a blood or plasma with an enzyme composition to react the enzyme composition with the blood or plasma, wherein the enzyme composition is capable of eliminating electronegative low-density lipoprotein from the blood or plasma by the activity of the enzyme composition, and the enzyme composition is selected from a group consisting of: a first enzyme for eliminating a glycan residue of an electronegative low-density lipoprotein (LDL); a second enzyme for eliminating ceramide carried by a electronegative low-density lipoprotein (LDL); and a combination thereof; and (b) terminating contact between the blood or plasma and the enzyme composition to terminate the reaction of the enzyme composition with the blood or plasma.

Abstract: A method for ex vivo treating blood or plasma is provided. The method includes (a) ex vivo contacting a blood or plasma with an enzyme composition to react the enzyme composition with the blood or plasma, wherein the enzyme composition is capable of eliminating electronegative low-density lipoprotein from the blood or plasma by the activity of the enzyme composition, and the enzyme composition is selected from a group consisting of: a first enzyme for eliminating a glycan residue of an electronegative low-density lipoprotein (LDL); a second enzyme for eliminating ceramide carried by a electronegative low-density lipoprotein (LDL); and a combination thereof; and (b) terminating contact between the blood or plasma and the enzyme composition to terminate the reaction of the enzyme composition with the blood or plasma.

Abstract: The present disclosure provides a biochemistry reactive material, including a substrate and an enzyme composition immobilized on the substrate. The enzyme composition is selected from a group consisting of a first enzyme, a second enzyme, and a combination thereof. The first enzyme is used for eliminating a glycan residue of an electronegative low-density lipoprotein (electronegative LDL). The second enzyme is used for eliminating ceramide carried by an electronegative low-density lipoprotein. The biochemistry reactive material is capable of eliminating electronegative low-density lipoprotein.

Abstract: An isolated peptidic fragment of apolipoprotein E comprises at least 3 contiguous amino acids, Including glycosylated threonine 194, threonine 289, serine 94, or serine 76 of SEQ ID NO.: 1, or any combination of those. An antibody capable of binding to the isolated peptidic fragment. A method of detecting a naturally-occurring circulating atherogenic low-density lipoprotein in a plasma sample from an individual, comprising qualitatively and/or quantitatively detecting in a low-density lipoprotein that binds to the antibody. A method of assessing an individual's risk of ischemic heart disease and/or atherosclerosis comprises quantifying in a plasma sample from the individual an amount of apolipoprotein E comprising glycosylated threonine 194, threonine 289, serine 94 or serine 76 of SEQ ID NO.: 1, or any combination of those.