A new role for an old hormone: is gastrin a cofactor for dietary metal ion uptake?

Abstract:

:It is proposed that gastrin promotes the uptake of divalent and trivalent metal ions from the gastrointestinal lumen by catalyzing the binding of metal ions to luminal albumin and transferrin respectively. The following observations are consistent with this hypothesis: 1. Gastrin binds both divalent and trivalent metal ions. 2. Gastrin binds to both albumin and apotransferrin. 3. Binding of gastrin to albumin is enhanced by divalent metal ions. 4. Gastrin, albumin and transferrin are all present in gastric juice. 5. Surgical removal of the gastric mucosa results in iron deficiency.

journal_name

Med Hypotheses

journal_title

Medical hypotheses

authors

Baldwin GS

doi

10.1016/0306-9877(92)90161-5

keywords:

subject

Has Abstract

pub_date

1992-05-01 00:00:00

pages

70-4

issue

1

eissn

0306-9877

issn

1532-2777

pii

0306-9877(92)90161-5

journal_volume

38

pub_type

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