Baumgarten, Alexander Department of Laboratory Medicine, School of Medicine, Yale University, New Haven, Connecticut.
- Abnormal levels
- Links to Primary Literature
- Additional Readings
A glycoprotein that is normally present in significant amounts only in the serum of the fetus. It is produced in the yolk sac, the liver, and other tissues of the gastrointestinal tract. Its role is unknown, but alpha fetoprotein may function as a carrier (or modulator of the concentration) of a small ligand, as an immunosuppressive, as a modulator of intracellular transport of unsaturated fatty acids, as a factor in estrogen transport, or as a means of binding retinoic acid.
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