Stearidonic Acid (18:4omega-3) is a rare polyunsaturated fatty acid of the omega-3 series. In normal humans, it represents less than 0.25% of serum phospholipid fatty acids. It is present in certain natural oils such as echium and black currant seed, and to the extent that these oils are incorporated into...

Cellular prion protein (PrPc) is a cell surface glycoprotein expressed in brain, spinal cord, and several peripheral tissues that if mutated to the protease-resistant isoform PrPSc (scrapie PrP, PrPres) can result in one of several fatal neurodegenerative diseases. Prion diseases, including mad cow disease (bovine...