Gastric intrinsic factor is a secreted glycoprotein, such as hydrochloric acid, by the fundic cells of the stomach.

Intrinsic factor may be lacking because the part of the stomach where intrinsic factor is produced was surgically removed.

If the radioactive B-12 is absorbed only when taken with intrinsic factor, it confirms that you lack your own intrinsic factor.

If you have pernicious anaemia, antibodies are formed against your intrinsic factor, or against the cells in your stomach which make the intrinsic factor.

In pernicious anaemia, antibodies are formed against intrinsic factor, or against the cells in the stomach which make it.

If intrinsic factor enables the body to absorb more of the vitamin, the deficiency is caused by lack of intrinsic factor.

Absence of intrinsic factor, also called pernicious anemia — Intrinsic factor is a protein secreted by cells of the stomach lining.

A B12 conjugate and intrinsic factor is injected into the blood of a patient.

This condition reduces the secretion of intrinsic factor

If you have pernicious anaemia, antibodies are formed against your intrinsic factor, or against the cells in your stomach which make intrinsic factor.

Intrinsic factor in the stomach is necessary for absorption

Also some individuals do not make enough intrinsic factor.

If the radioactive B-12 is absorbed only when taken with intrinsic factor, it confirms that you lack your own intrinsic factor.

The small intestine has receptors for intrinsic factor.

They secrete hydrochloric acid and Castle intrinsic factor.