Stanol ester understood. Stanol ester Stanol ester is a heterogeneous group of chemical compounds known to reduce the level of low-density lipoprotein (LDL) cholesterol in blood when ingested, though to a much lesser degree than prescription drugs such as statins. The starting material is phytosterols from plants. These are first hydrogenated to give a plant stanol which is then esterified with a mixture of fatty acids also derived from plants. Plant stanol esters are found naturally occurring in small quantities in fruits, vegetables, nuts, seeds, cereals, legumes, and vegetable oils. Stanol ester is often added to rapeseed oil based margarine or other
Cord blood bank and Drug Administration regulates cord blood under the category of “Human Cells, Tissues, and Cellular and Tissue Based-Products”. Since the FDA considers cord blood stored at public banks to be "drugs", but doesn't consider cord blood stored at private banks for use by the donor to be drugs, private banks are held to a lower regulatory standard. Cord blood transplants require less stringent matching between the tissue types of the donor and patient, known as their human leukocyte antigen (HLA) types. Bone marrow transplants require a complete match on six key antigens, which are measures of graft-versus-host reaction, known as